4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2019 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2016 Nexenta Systems, Inc.
27 * Copyright (c) 2017, 2018 Lawrence Livermore National Security, LLC.
28 * Copyright (c) 2015, 2017, Intel Corporation.
29 * Copyright (c) 2020 Datto Inc.
30 * Copyright (c) 2020, The FreeBSD Foundation [1]
32 * [1] Portions of this software were developed by Allan Jude
33 * under sponsorship from the FreeBSD Foundation.
40 #include <sys/zfs_context.h>
42 #include <sys/spa_impl.h>
45 #include <sys/fs/zfs.h>
46 #include <sys/zfs_znode.h>
47 #include <sys/zfs_sa.h>
49 #include <sys/sa_impl.h>
51 #include <sys/vdev_impl.h>
52 #include <sys/metaslab_impl.h>
53 #include <sys/dmu_objset.h>
54 #include <sys/dsl_dir.h>
55 #include <sys/dsl_dataset.h>
56 #include <sys/dsl_pool.h>
57 #include <sys/dsl_bookmark.h>
60 #include <sys/zil_impl.h>
62 #include <sys/resource.h>
63 #include <sys/dmu_send.h>
64 #include <sys/dmu_traverse.h>
65 #include <sys/zio_checksum.h>
66 #include <sys/zio_compress.h>
67 #include <sys/zfs_fuid.h>
69 #include <sys/arc_impl.h>
71 #include <sys/zfeature.h>
73 #include <sys/blkptr.h>
74 #include <sys/dsl_crypt.h>
75 #include <sys/dsl_scan.h>
76 #include <sys/btree.h>
77 #include <zfs_comutil.h>
78 #include <sys/zstd/zstd.h>
80 #include <libnvpair.h>
85 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
86 zio_compress_table[(idx)].ci_name : "UNKNOWN")
87 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
88 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
89 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
90 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \
92 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \
93 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES)
96 zdb_ot_name(dmu_object_type_t type)
98 if (type < DMU_OT_NUMTYPES)
99 return (dmu_ot[type].ot_name);
100 else if ((type & DMU_OT_NEWTYPE) &&
101 ((type & DMU_OT_BYTESWAP_MASK) < DMU_BSWAP_NUMFUNCS))
102 return (dmu_ot_byteswap[type & DMU_OT_BYTESWAP_MASK].ob_name);
107 extern int reference_tracking_enable;
108 extern int zfs_recover;
109 extern unsigned long zfs_arc_meta_min, zfs_arc_meta_limit;
110 extern int zfs_vdev_async_read_max_active;
111 extern boolean_t spa_load_verify_dryrun;
112 extern int zfs_reconstruct_indirect_combinations_max;
113 extern int zfs_btree_verify_intensity;
115 static const char cmdname[] = "zdb";
116 uint8_t dump_opt[256];
118 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
120 uint64_t *zopt_metaslab = NULL;
121 static unsigned zopt_metaslab_args = 0;
123 typedef struct zopt_object_range {
124 uint64_t zor_obj_start;
125 uint64_t zor_obj_end;
127 } zopt_object_range_t;
128 zopt_object_range_t *zopt_object_ranges = NULL;
129 static unsigned zopt_object_args = 0;
131 static int flagbits[256];
133 #define ZOR_FLAG_PLAIN_FILE 0x0001
134 #define ZOR_FLAG_DIRECTORY 0x0002
135 #define ZOR_FLAG_SPACE_MAP 0x0004
136 #define ZOR_FLAG_ZAP 0x0008
137 #define ZOR_FLAG_ALL_TYPES -1
138 #define ZOR_SUPPORTED_FLAGS (ZOR_FLAG_PLAIN_FILE | \
139 ZOR_FLAG_DIRECTORY | \
140 ZOR_FLAG_SPACE_MAP | \
143 #define ZDB_FLAG_CHECKSUM 0x0001
144 #define ZDB_FLAG_DECOMPRESS 0x0002
145 #define ZDB_FLAG_BSWAP 0x0004
146 #define ZDB_FLAG_GBH 0x0008
147 #define ZDB_FLAG_INDIRECT 0x0010
148 #define ZDB_FLAG_RAW 0x0020
149 #define ZDB_FLAG_PRINT_BLKPTR 0x0040
150 #define ZDB_FLAG_VERBOSE 0x0080
152 uint64_t max_inflight_bytes = 256 * 1024 * 1024; /* 256MB */
153 static int leaked_objects = 0;
154 static range_tree_t *mos_refd_objs;
156 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *,
158 static void mos_obj_refd(uint64_t);
159 static void mos_obj_refd_multiple(uint64_t);
160 static int dump_bpobj_cb(void *arg, const blkptr_t *bp, boolean_t free,
163 typedef struct sublivelist_verify {
164 /* all ALLOC'd blkptr_t in one sub-livelist */
165 zfs_btree_t sv_all_allocs;
167 /* all FREE'd blkptr_t in one sub-livelist */
168 zfs_btree_t sv_all_frees;
170 /* FREE's that haven't yet matched to an ALLOC, in one sub-livelist */
173 /* ALLOC's without a matching FREE, accumulates across sub-livelists */
174 zfs_btree_t sv_leftover;
175 } sublivelist_verify_t;
178 livelist_compare(const void *larg, const void *rarg)
180 const blkptr_t *l = larg;
181 const blkptr_t *r = rarg;
183 /* Sort them according to dva[0] */
184 uint64_t l_dva0_vdev, r_dva0_vdev;
185 l_dva0_vdev = DVA_GET_VDEV(&l->blk_dva[0]);
186 r_dva0_vdev = DVA_GET_VDEV(&r->blk_dva[0]);
187 if (l_dva0_vdev < r_dva0_vdev)
189 else if (l_dva0_vdev > r_dva0_vdev)
192 /* if vdevs are equal, sort by offsets. */
193 uint64_t l_dva0_offset;
194 uint64_t r_dva0_offset;
195 l_dva0_offset = DVA_GET_OFFSET(&l->blk_dva[0]);
196 r_dva0_offset = DVA_GET_OFFSET(&r->blk_dva[0]);
197 if (l_dva0_offset < r_dva0_offset) {
199 } else if (l_dva0_offset > r_dva0_offset) {
204 * Since we're storing blkptrs without cancelling FREE/ALLOC pairs,
205 * it's possible the offsets are equal. In that case, sort by txg
207 if (l->blk_birth < r->blk_birth) {
209 } else if (l->blk_birth > r->blk_birth) {
215 typedef struct sublivelist_verify_block {
219 * We need this to check if the block marked as allocated
220 * in the livelist was freed (and potentially reallocated)
221 * in the metaslab spacemaps at a later TXG.
223 uint64_t svb_allocated_txg;
224 } sublivelist_verify_block_t;
226 static void zdb_print_blkptr(const blkptr_t *bp, int flags);
229 sublivelist_verify_blkptr(void *arg, const blkptr_t *bp, boolean_t free,
232 ASSERT3P(tx, ==, NULL);
233 struct sublivelist_verify *sv = arg;
234 char blkbuf[BP_SPRINTF_LEN];
235 zfs_btree_index_t where;
237 zfs_btree_add(&sv->sv_pair, bp);
238 /* Check if the FREE is a duplicate */
239 if (zfs_btree_find(&sv->sv_all_frees, bp, &where) != NULL) {
240 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp,
242 (void) printf("\tERROR: Duplicate FREE: %s\n", blkbuf);
244 zfs_btree_add_idx(&sv->sv_all_frees, bp, &where);
247 /* Check if the ALLOC has been freed */
248 if (zfs_btree_find(&sv->sv_pair, bp, &where) != NULL) {
249 zfs_btree_remove_idx(&sv->sv_pair, &where);
251 for (int i = 0; i < SPA_DVAS_PER_BP; i++) {
252 if (DVA_IS_EMPTY(&bp->blk_dva[i]))
254 sublivelist_verify_block_t svb = {
255 .svb_dva = bp->blk_dva[i],
256 .svb_allocated_txg = bp->blk_birth
259 if (zfs_btree_find(&sv->sv_leftover, &svb,
261 zfs_btree_add_idx(&sv->sv_leftover,
266 /* Check if the ALLOC is a duplicate */
267 if (zfs_btree_find(&sv->sv_all_allocs, bp, &where) != NULL) {
268 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp,
270 (void) printf("\tERROR: Duplicate ALLOC: %s\n", blkbuf);
272 zfs_btree_add_idx(&sv->sv_all_allocs, bp, &where);
279 sublivelist_verify_func(void *args, dsl_deadlist_entry_t *dle)
282 char blkbuf[BP_SPRINTF_LEN];
283 struct sublivelist_verify *sv = args;
285 zfs_btree_create(&sv->sv_all_allocs, livelist_compare,
288 zfs_btree_create(&sv->sv_all_frees, livelist_compare,
291 zfs_btree_create(&sv->sv_pair, livelist_compare,
294 err = bpobj_iterate_nofree(&dle->dle_bpobj, sublivelist_verify_blkptr,
297 zfs_btree_clear(&sv->sv_all_allocs);
298 zfs_btree_destroy(&sv->sv_all_allocs);
300 zfs_btree_clear(&sv->sv_all_frees);
301 zfs_btree_destroy(&sv->sv_all_frees);
304 zfs_btree_index_t *cookie = NULL;
305 while ((e = zfs_btree_destroy_nodes(&sv->sv_pair, &cookie)) != NULL) {
306 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), e, B_TRUE);
307 (void) printf("\tERROR: Unmatched FREE: %s\n", blkbuf);
309 zfs_btree_destroy(&sv->sv_pair);
315 livelist_block_compare(const void *larg, const void *rarg)
317 const sublivelist_verify_block_t *l = larg;
318 const sublivelist_verify_block_t *r = rarg;
320 if (DVA_GET_VDEV(&l->svb_dva) < DVA_GET_VDEV(&r->svb_dva))
322 else if (DVA_GET_VDEV(&l->svb_dva) > DVA_GET_VDEV(&r->svb_dva))
325 if (DVA_GET_OFFSET(&l->svb_dva) < DVA_GET_OFFSET(&r->svb_dva))
327 else if (DVA_GET_OFFSET(&l->svb_dva) > DVA_GET_OFFSET(&r->svb_dva))
330 if (DVA_GET_ASIZE(&l->svb_dva) < DVA_GET_ASIZE(&r->svb_dva))
332 else if (DVA_GET_ASIZE(&l->svb_dva) > DVA_GET_ASIZE(&r->svb_dva))
339 * Check for errors in a livelist while tracking all unfreed ALLOCs in the
340 * sublivelist_verify_t: sv->sv_leftover
343 livelist_verify(dsl_deadlist_t *dl, void *arg)
345 sublivelist_verify_t *sv = arg;
346 dsl_deadlist_iterate(dl, sublivelist_verify_func, sv);
350 * Check for errors in the livelist entry and discard the intermediary
355 sublivelist_verify_lightweight(void *args, dsl_deadlist_entry_t *dle)
357 sublivelist_verify_t sv;
358 zfs_btree_create(&sv.sv_leftover, livelist_block_compare,
359 sizeof (sublivelist_verify_block_t));
360 int err = sublivelist_verify_func(&sv, dle);
361 zfs_btree_clear(&sv.sv_leftover);
362 zfs_btree_destroy(&sv.sv_leftover);
366 typedef struct metaslab_verify {
368 * Tree containing all the leftover ALLOCs from the livelists
369 * that are part of this metaslab.
371 zfs_btree_t mv_livelist_allocs;
374 * Metaslab information.
382 * What's currently allocated for this metaslab.
384 range_tree_t *mv_allocated;
387 typedef void ll_iter_t(dsl_deadlist_t *ll, void *arg);
389 typedef int (*zdb_log_sm_cb_t)(spa_t *spa, space_map_entry_t *sme, uint64_t txg,
392 typedef struct unflushed_iter_cb_arg {
396 zdb_log_sm_cb_t uic_cb;
397 } unflushed_iter_cb_arg_t;
400 iterate_through_spacemap_logs_cb(space_map_entry_t *sme, void *arg)
402 unflushed_iter_cb_arg_t *uic = arg;
403 return (uic->uic_cb(uic->uic_spa, sme, uic->uic_txg, uic->uic_arg));
407 iterate_through_spacemap_logs(spa_t *spa, zdb_log_sm_cb_t cb, void *arg)
409 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP))
412 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
413 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg);
414 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) {
415 space_map_t *sm = NULL;
416 VERIFY0(space_map_open(&sm, spa_meta_objset(spa),
417 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT));
419 unflushed_iter_cb_arg_t uic = {
421 .uic_txg = sls->sls_txg,
425 VERIFY0(space_map_iterate(sm, space_map_length(sm),
426 iterate_through_spacemap_logs_cb, &uic));
429 spa_config_exit(spa, SCL_CONFIG, FTAG);
433 verify_livelist_allocs(metaslab_verify_t *mv, uint64_t txg,
434 uint64_t offset, uint64_t size)
436 sublivelist_verify_block_t svb;
437 DVA_SET_VDEV(&svb.svb_dva, mv->mv_vdid);
438 DVA_SET_OFFSET(&svb.svb_dva, offset);
439 DVA_SET_ASIZE(&svb.svb_dva, size);
440 zfs_btree_index_t where;
441 uint64_t end_offset = offset + size;
444 * Look for an exact match for spacemap entry in the livelist entries.
445 * Then, look for other livelist entries that fall within the range
446 * of the spacemap entry as it may have been condensed
448 sublivelist_verify_block_t *found =
449 zfs_btree_find(&mv->mv_livelist_allocs, &svb, &where);
451 found = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where);
453 for (; found != NULL && DVA_GET_VDEV(&found->svb_dva) == mv->mv_vdid &&
454 DVA_GET_OFFSET(&found->svb_dva) < end_offset;
455 found = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where)) {
456 if (found->svb_allocated_txg <= txg) {
457 (void) printf("ERROR: Livelist ALLOC [%llx:%llx] "
458 "from TXG %llx FREED at TXG %llx\n",
459 (u_longlong_t)DVA_GET_OFFSET(&found->svb_dva),
460 (u_longlong_t)DVA_GET_ASIZE(&found->svb_dva),
461 (u_longlong_t)found->svb_allocated_txg,
468 metaslab_spacemap_validation_cb(space_map_entry_t *sme, void *arg)
470 metaslab_verify_t *mv = arg;
471 uint64_t offset = sme->sme_offset;
472 uint64_t size = sme->sme_run;
473 uint64_t txg = sme->sme_txg;
475 if (sme->sme_type == SM_ALLOC) {
476 if (range_tree_contains(mv->mv_allocated,
478 (void) printf("ERROR: DOUBLE ALLOC: "
480 "%llu:%llu LOG_SM\n",
481 (u_longlong_t)txg, (u_longlong_t)offset,
482 (u_longlong_t)size, (u_longlong_t)mv->mv_vdid,
483 (u_longlong_t)mv->mv_msid);
485 range_tree_add(mv->mv_allocated,
489 if (!range_tree_contains(mv->mv_allocated,
491 (void) printf("ERROR: DOUBLE FREE: "
493 "%llu:%llu LOG_SM\n",
494 (u_longlong_t)txg, (u_longlong_t)offset,
495 (u_longlong_t)size, (u_longlong_t)mv->mv_vdid,
496 (u_longlong_t)mv->mv_msid);
498 range_tree_remove(mv->mv_allocated,
503 if (sme->sme_type != SM_ALLOC) {
505 * If something is freed in the spacemap, verify that
506 * it is not listed as allocated in the livelist.
508 verify_livelist_allocs(mv, txg, offset, size);
514 spacemap_check_sm_log_cb(spa_t *spa, space_map_entry_t *sme,
515 uint64_t txg, void *arg)
517 metaslab_verify_t *mv = arg;
518 uint64_t offset = sme->sme_offset;
519 uint64_t vdev_id = sme->sme_vdev;
521 vdev_t *vd = vdev_lookup_top(spa, vdev_id);
523 /* skip indirect vdevs */
524 if (!vdev_is_concrete(vd))
527 if (vdev_id != mv->mv_vdid)
530 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
531 if (ms->ms_id != mv->mv_msid)
534 if (txg < metaslab_unflushed_txg(ms))
538 ASSERT3U(txg, ==, sme->sme_txg);
539 return (metaslab_spacemap_validation_cb(sme, mv));
543 spacemap_check_sm_log(spa_t *spa, metaslab_verify_t *mv)
545 iterate_through_spacemap_logs(spa, spacemap_check_sm_log_cb, mv);
549 spacemap_check_ms_sm(space_map_t *sm, metaslab_verify_t *mv)
554 VERIFY0(space_map_iterate(sm, space_map_length(sm),
555 metaslab_spacemap_validation_cb, mv));
558 static void iterate_deleted_livelists(spa_t *spa, ll_iter_t func, void *arg);
561 * Transfer blocks from sv_leftover tree to the mv_livelist_allocs if
562 * they are part of that metaslab (mv_msid).
565 mv_populate_livelist_allocs(metaslab_verify_t *mv, sublivelist_verify_t *sv)
567 zfs_btree_index_t where;
568 sublivelist_verify_block_t *svb;
569 ASSERT3U(zfs_btree_numnodes(&mv->mv_livelist_allocs), ==, 0);
570 for (svb = zfs_btree_first(&sv->sv_leftover, &where);
572 svb = zfs_btree_next(&sv->sv_leftover, &where, &where)) {
573 if (DVA_GET_VDEV(&svb->svb_dva) != mv->mv_vdid)
576 if (DVA_GET_OFFSET(&svb->svb_dva) < mv->mv_start &&
577 (DVA_GET_OFFSET(&svb->svb_dva) +
578 DVA_GET_ASIZE(&svb->svb_dva)) > mv->mv_start) {
579 (void) printf("ERROR: Found block that crosses "
580 "metaslab boundary: <%llu:%llx:%llx>\n",
581 (u_longlong_t)DVA_GET_VDEV(&svb->svb_dva),
582 (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva),
583 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva));
587 if (DVA_GET_OFFSET(&svb->svb_dva) < mv->mv_start)
590 if (DVA_GET_OFFSET(&svb->svb_dva) >= mv->mv_end)
593 if ((DVA_GET_OFFSET(&svb->svb_dva) +
594 DVA_GET_ASIZE(&svb->svb_dva)) > mv->mv_end) {
595 (void) printf("ERROR: Found block that crosses "
596 "metaslab boundary: <%llu:%llx:%llx>\n",
597 (u_longlong_t)DVA_GET_VDEV(&svb->svb_dva),
598 (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva),
599 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva));
603 zfs_btree_add(&mv->mv_livelist_allocs, svb);
606 for (svb = zfs_btree_first(&mv->mv_livelist_allocs, &where);
608 svb = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where)) {
609 zfs_btree_remove(&sv->sv_leftover, svb);
615 * Iterate through all the sublivelists and:
616 * - report leftover frees
617 * - report double ALLOCs/FREEs
618 * - record leftover ALLOCs together with their TXG [see Cross Check]
622 * - iterate over spacemap and then the metaslab's entries in the
623 * spacemap log, then report any double FREEs and ALLOCs (do not
627 * After finishing the Livelist Check phase and while being in the
628 * Spacemap Check phase, we find all the recorded leftover ALLOCs
629 * of the livelist check that are part of the metaslab that we are
630 * currently looking at in the Spacemap Check. We report any entries
631 * that are marked as ALLOCs in the livelists but have been actually
632 * freed (and potentially allocated again) after their TXG stamp in
633 * the spacemaps. Also report any ALLOCs from the livelists that
634 * belong to indirect vdevs (e.g. their vdev completed removal).
636 * Note that this will miss Log Spacemap entries that cancelled each other
637 * out before being flushed to the metaslab, so we are not guaranteed
638 * to match all erroneous ALLOCs.
641 livelist_metaslab_validate(spa_t *spa)
643 (void) printf("Verifying deleted livelist entries\n");
645 sublivelist_verify_t sv;
646 zfs_btree_create(&sv.sv_leftover, livelist_block_compare,
647 sizeof (sublivelist_verify_block_t));
648 iterate_deleted_livelists(spa, livelist_verify, &sv);
650 (void) printf("Verifying metaslab entries\n");
651 vdev_t *rvd = spa->spa_root_vdev;
652 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
653 vdev_t *vd = rvd->vdev_child[c];
655 if (!vdev_is_concrete(vd))
658 for (uint64_t mid = 0; mid < vd->vdev_ms_count; mid++) {
659 metaslab_t *m = vd->vdev_ms[mid];
661 (void) fprintf(stderr,
662 "\rverifying concrete vdev %llu, "
663 "metaslab %llu of %llu ...",
664 (longlong_t)vd->vdev_id,
666 (longlong_t)vd->vdev_ms_count);
668 uint64_t shift, start;
669 range_seg_type_t type =
670 metaslab_calculate_range_tree_type(vd, m,
672 metaslab_verify_t mv;
673 mv.mv_allocated = range_tree_create(NULL,
674 type, NULL, start, shift);
675 mv.mv_vdid = vd->vdev_id;
676 mv.mv_msid = m->ms_id;
677 mv.mv_start = m->ms_start;
678 mv.mv_end = m->ms_start + m->ms_size;
679 zfs_btree_create(&mv.mv_livelist_allocs,
680 livelist_block_compare,
681 sizeof (sublivelist_verify_block_t));
683 mv_populate_livelist_allocs(&mv, &sv);
685 spacemap_check_ms_sm(m->ms_sm, &mv);
686 spacemap_check_sm_log(spa, &mv);
688 range_tree_vacate(mv.mv_allocated, NULL, NULL);
689 range_tree_destroy(mv.mv_allocated);
690 zfs_btree_clear(&mv.mv_livelist_allocs);
691 zfs_btree_destroy(&mv.mv_livelist_allocs);
694 (void) fprintf(stderr, "\n");
697 * If there are any segments in the leftover tree after we walked
698 * through all the metaslabs in the concrete vdevs then this means
699 * that we have segments in the livelists that belong to indirect
700 * vdevs and are marked as allocated.
702 if (zfs_btree_numnodes(&sv.sv_leftover) == 0) {
703 zfs_btree_destroy(&sv.sv_leftover);
706 (void) printf("ERROR: Found livelist blocks marked as allocated "
707 "for indirect vdevs:\n");
709 zfs_btree_index_t *where = NULL;
710 sublivelist_verify_block_t *svb;
711 while ((svb = zfs_btree_destroy_nodes(&sv.sv_leftover, &where)) !=
713 int vdev_id = DVA_GET_VDEV(&svb->svb_dva);
714 ASSERT3U(vdev_id, <, rvd->vdev_children);
715 vdev_t *vd = rvd->vdev_child[vdev_id];
716 ASSERT(!vdev_is_concrete(vd));
717 (void) printf("<%d:%llx:%llx> TXG %llx\n",
718 vdev_id, (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva),
719 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva),
720 (u_longlong_t)svb->svb_allocated_txg);
723 zfs_btree_destroy(&sv.sv_leftover);
727 * These libumem hooks provide a reasonable set of defaults for the allocator's
728 * debugging facilities.
731 _umem_debug_init(void)
733 return ("default,verbose"); /* $UMEM_DEBUG setting */
737 _umem_logging_init(void)
739 return ("fail,contents"); /* $UMEM_LOGGING setting */
745 (void) fprintf(stderr,
746 "Usage:\t%s [-AbcdDFGhikLMPsvXy] [-e [-V] [-p <path> ...]] "
747 "[-I <inflight I/Os>]\n"
748 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
749 "\t\t[<poolname>[/<dataset | objset id>] [<object | range> ...]]\n"
750 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
751 "\t\t[<poolname>[/<dataset | objset id>] [<object | range> ...]\n"
752 "\t%s [-v] <bookmark>\n"
753 "\t%s -C [-A] [-U <cache>]\n"
754 "\t%s -l [-Aqu] <device>\n"
755 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
756 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
757 "\t%s -O <dataset> <path>\n"
758 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
759 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
760 "\t%s -E [-A] word0:word1:...:word15\n"
761 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
763 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
764 cmdname, cmdname, cmdname);
766 (void) fprintf(stderr, " Dataset name must include at least one "
767 "separator character '/' or '@'\n");
768 (void) fprintf(stderr, " If dataset name is specified, only that "
769 "dataset is dumped\n");
770 (void) fprintf(stderr, " If object numbers or object number "
771 "ranges are specified, only those\n"
772 " objects or ranges are dumped.\n\n");
773 (void) fprintf(stderr,
774 " Object ranges take the form <start>:<end>[:<flags>]\n"
775 " start Starting object number\n"
776 " end Ending object number, or -1 for no upper bound\n"
777 " flags Optional flags to select object types:\n"
778 " A All objects (this is the default)\n"
779 " d ZFS directories\n"
781 " m SPA space maps\n"
783 " - Negate effect of next flag\n\n");
784 (void) fprintf(stderr, " Options to control amount of output:\n");
785 (void) fprintf(stderr, " -b block statistics\n");
786 (void) fprintf(stderr, " -c checksum all metadata (twice for "
787 "all data) blocks\n");
788 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
789 (void) fprintf(stderr, " -d dataset(s)\n");
790 (void) fprintf(stderr, " -D dedup statistics\n");
791 (void) fprintf(stderr, " -E decode and display block from an "
792 "embedded block pointer\n");
793 (void) fprintf(stderr, " -h pool history\n");
794 (void) fprintf(stderr, " -i intent logs\n");
795 (void) fprintf(stderr, " -l read label contents\n");
796 (void) fprintf(stderr, " -k examine the checkpointed state "
798 (void) fprintf(stderr, " -L disable leak tracking (do not "
799 "load spacemaps)\n");
800 (void) fprintf(stderr, " -m metaslabs\n");
801 (void) fprintf(stderr, " -M metaslab groups\n");
802 (void) fprintf(stderr, " -O perform object lookups by path\n");
803 (void) fprintf(stderr, " -R read and display block from a "
805 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
806 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
807 (void) fprintf(stderr, " -v verbose (applies to all "
809 (void) fprintf(stderr, " -y perform livelist and metaslab "
810 "validation on any livelists being deleted\n\n");
811 (void) fprintf(stderr, " Below options are intended for use "
812 "with other options:\n");
813 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
814 "panic recovery (-AA) or both (-AAA)\n");
815 (void) fprintf(stderr, " -e pool is exported/destroyed/"
816 "has altroot/not in a cachefile\n");
817 (void) fprintf(stderr, " -F attempt automatic rewind within "
818 "safe range of transaction groups\n");
819 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
821 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
822 "specify the maximum number of\n "
823 "checksumming I/Os [default is 200]\n");
824 (void) fprintf(stderr, " -o <variable>=<value> set global "
825 "variable to an unsigned 32-bit integer\n");
826 (void) fprintf(stderr, " -p <path> -- use one or more with "
827 "-e to specify path to vdev dir\n");
828 (void) fprintf(stderr, " -P print numbers in parseable form\n");
829 (void) fprintf(stderr, " -q don't print label contents\n");
830 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
831 "searching for uberblocks\n");
832 (void) fprintf(stderr, " -u uberblock\n");
833 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
835 (void) fprintf(stderr, " -V do verbatim import\n");
836 (void) fprintf(stderr, " -x <dumpdir> -- "
837 "dump all read blocks into specified directory\n");
838 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
839 "work with dataset)\n");
840 (void) fprintf(stderr, " -Y attempt all reconstruction "
841 "combinations for split blocks\n");
842 (void) fprintf(stderr, " -Z show ZSTD headers \n");
843 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
844 "to make only that option verbose\n");
845 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
850 dump_debug_buffer(void)
854 (void) fflush(stdout);
855 zfs_dbgmsg_print("zdb");
860 * Called for usage errors that are discovered after a call to spa_open(),
861 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
865 fatal(const char *fmt, ...)
870 (void) fprintf(stderr, "%s: ", cmdname);
871 (void) vfprintf(stderr, fmt, ap);
873 (void) fprintf(stderr, "\n");
882 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
885 size_t nvsize = *(uint64_t *)data;
886 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
888 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
890 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
892 umem_free(packed, nvsize);
901 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
903 spa_history_phys_t *shp = data;
908 (void) printf("\t\tpool_create_len = %llu\n",
909 (u_longlong_t)shp->sh_pool_create_len);
910 (void) printf("\t\tphys_max_off = %llu\n",
911 (u_longlong_t)shp->sh_phys_max_off);
912 (void) printf("\t\tbof = %llu\n",
913 (u_longlong_t)shp->sh_bof);
914 (void) printf("\t\teof = %llu\n",
915 (u_longlong_t)shp->sh_eof);
916 (void) printf("\t\trecords_lost = %llu\n",
917 (u_longlong_t)shp->sh_records_lost);
921 zdb_nicenum(uint64_t num, char *buf, size_t buflen)
924 (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
926 nicenum(num, buf, sizeof (buf));
929 static const char histo_stars[] = "****************************************";
930 static const uint64_t histo_width = sizeof (histo_stars) - 1;
933 dump_histogram(const uint64_t *histo, int size, int offset)
936 int minidx = size - 1;
940 for (i = 0; i < size; i++) {
943 if (histo[i] > 0 && i > maxidx)
945 if (histo[i] > 0 && i < minidx)
949 if (max < histo_width)
952 for (i = minidx; i <= maxidx; i++) {
953 (void) printf("\t\t\t%3u: %6llu %s\n",
954 i + offset, (u_longlong_t)histo[i],
955 &histo_stars[(max - histo[i]) * histo_width / max]);
960 dump_zap_stats(objset_t *os, uint64_t object)
965 error = zap_get_stats(os, object, &zs);
969 if (zs.zs_ptrtbl_len == 0) {
970 ASSERT(zs.zs_num_blocks == 1);
971 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
972 (u_longlong_t)zs.zs_blocksize,
973 (u_longlong_t)zs.zs_num_entries);
977 (void) printf("\tFat ZAP stats:\n");
979 (void) printf("\t\tPointer table:\n");
980 (void) printf("\t\t\t%llu elements\n",
981 (u_longlong_t)zs.zs_ptrtbl_len);
982 (void) printf("\t\t\tzt_blk: %llu\n",
983 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
984 (void) printf("\t\t\tzt_numblks: %llu\n",
985 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
986 (void) printf("\t\t\tzt_shift: %llu\n",
987 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
988 (void) printf("\t\t\tzt_blks_copied: %llu\n",
989 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
990 (void) printf("\t\t\tzt_nextblk: %llu\n",
991 (u_longlong_t)zs.zs_ptrtbl_nextblk);
993 (void) printf("\t\tZAP entries: %llu\n",
994 (u_longlong_t)zs.zs_num_entries);
995 (void) printf("\t\tLeaf blocks: %llu\n",
996 (u_longlong_t)zs.zs_num_leafs);
997 (void) printf("\t\tTotal blocks: %llu\n",
998 (u_longlong_t)zs.zs_num_blocks);
999 (void) printf("\t\tzap_block_type: 0x%llx\n",
1000 (u_longlong_t)zs.zs_block_type);
1001 (void) printf("\t\tzap_magic: 0x%llx\n",
1002 (u_longlong_t)zs.zs_magic);
1003 (void) printf("\t\tzap_salt: 0x%llx\n",
1004 (u_longlong_t)zs.zs_salt);
1006 (void) printf("\t\tLeafs with 2^n pointers:\n");
1007 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
1009 (void) printf("\t\tBlocks with n*5 entries:\n");
1010 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
1012 (void) printf("\t\tBlocks n/10 full:\n");
1013 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
1015 (void) printf("\t\tEntries with n chunks:\n");
1016 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
1018 (void) printf("\t\tBuckets with n entries:\n");
1019 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
1024 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
1030 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
1032 (void) printf("\tUNKNOWN OBJECT TYPE\n");
1037 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
1043 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
1047 if (dump_opt['d'] < 6)
1051 dmu_object_info_t doi;
1053 VERIFY0(dmu_object_info(os, object, &doi));
1054 size = doi.doi_max_offset;
1056 * We cap the size at 1 mebibyte here to prevent
1057 * allocation failures and nigh-infinite printing if the
1058 * object is extremely large.
1060 oursize = MIN(size, 1 << 20);
1061 arr = kmem_alloc(oursize, KM_SLEEP);
1063 int err = dmu_read(os, object, 0, oursize, arr, 0);
1065 (void) printf("got error %u from dmu_read\n", err);
1066 kmem_free(arr, oursize);
1071 * Even though the allocation is already done in this code path,
1072 * we still cap the size to prevent excessive printing.
1074 oursize = MIN(size, 1 << 20);
1079 (void) printf("\t\t[]\n");
1083 (void) printf("\t\t[%0llx", (u_longlong_t)arr[0]);
1084 for (size_t i = 1; i * sizeof (uint64_t) < oursize; i++) {
1086 (void) printf(", %0llx", (u_longlong_t)arr[i]);
1088 (void) printf(",\n\t\t%0llx", (u_longlong_t)arr[i]);
1090 if (oursize != size)
1091 (void) printf(", ... ");
1092 (void) printf("]\n");
1095 kmem_free(arr, oursize);
1100 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
1103 zap_attribute_t attr;
1107 dump_zap_stats(os, object);
1108 (void) printf("\n");
1110 for (zap_cursor_init(&zc, os, object);
1111 zap_cursor_retrieve(&zc, &attr) == 0;
1112 zap_cursor_advance(&zc)) {
1113 (void) printf("\t\t%s = ", attr.za_name);
1114 if (attr.za_num_integers == 0) {
1115 (void) printf("\n");
1118 prop = umem_zalloc(attr.za_num_integers *
1119 attr.za_integer_length, UMEM_NOFAIL);
1120 (void) zap_lookup(os, object, attr.za_name,
1121 attr.za_integer_length, attr.za_num_integers, prop);
1122 if (attr.za_integer_length == 1) {
1123 (void) printf("%s", (char *)prop);
1125 for (i = 0; i < attr.za_num_integers; i++) {
1126 switch (attr.za_integer_length) {
1128 (void) printf("%u ",
1129 ((uint16_t *)prop)[i]);
1132 (void) printf("%u ",
1133 ((uint32_t *)prop)[i]);
1136 (void) printf("%lld ",
1137 (u_longlong_t)((int64_t *)prop)[i]);
1142 (void) printf("\n");
1143 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
1145 zap_cursor_fini(&zc);
1149 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
1151 bpobj_phys_t *bpop = data;
1153 char bytes[32], comp[32], uncomp[32];
1155 /* make sure the output won't get truncated */
1156 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1157 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1158 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1163 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
1164 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
1165 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
1167 (void) printf("\t\tnum_blkptrs = %llu\n",
1168 (u_longlong_t)bpop->bpo_num_blkptrs);
1169 (void) printf("\t\tbytes = %s\n", bytes);
1170 if (size >= BPOBJ_SIZE_V1) {
1171 (void) printf("\t\tcomp = %s\n", comp);
1172 (void) printf("\t\tuncomp = %s\n", uncomp);
1174 if (size >= BPOBJ_SIZE_V2) {
1175 (void) printf("\t\tsubobjs = %llu\n",
1176 (u_longlong_t)bpop->bpo_subobjs);
1177 (void) printf("\t\tnum_subobjs = %llu\n",
1178 (u_longlong_t)bpop->bpo_num_subobjs);
1180 if (size >= sizeof (*bpop)) {
1181 (void) printf("\t\tnum_freed = %llu\n",
1182 (u_longlong_t)bpop->bpo_num_freed);
1185 if (dump_opt['d'] < 5)
1188 for (i = 0; i < bpop->bpo_num_blkptrs; i++) {
1189 char blkbuf[BP_SPRINTF_LEN];
1192 int err = dmu_read(os, object,
1193 i * sizeof (bp), sizeof (bp), &bp, 0);
1195 (void) printf("got error %u from dmu_read\n", err);
1198 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp,
1200 (void) printf("\t%s\n", blkbuf);
1206 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
1208 dmu_object_info_t doi;
1211 VERIFY0(dmu_object_info(os, object, &doi));
1212 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
1214 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
1216 (void) printf("got error %u from dmu_read\n", err);
1217 kmem_free(subobjs, doi.doi_max_offset);
1221 int64_t last_nonzero = -1;
1222 for (i = 0; i < doi.doi_max_offset / 8; i++) {
1223 if (subobjs[i] != 0)
1227 for (i = 0; i <= last_nonzero; i++) {
1228 (void) printf("\t%llu\n", (u_longlong_t)subobjs[i]);
1230 kmem_free(subobjs, doi.doi_max_offset);
1235 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
1237 dump_zap_stats(os, object);
1238 /* contents are printed elsewhere, properly decoded */
1243 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
1246 zap_attribute_t attr;
1248 dump_zap_stats(os, object);
1249 (void) printf("\n");
1251 for (zap_cursor_init(&zc, os, object);
1252 zap_cursor_retrieve(&zc, &attr) == 0;
1253 zap_cursor_advance(&zc)) {
1254 (void) printf("\t\t%s = ", attr.za_name);
1255 if (attr.za_num_integers == 0) {
1256 (void) printf("\n");
1259 (void) printf(" %llx : [%d:%d:%d]\n",
1260 (u_longlong_t)attr.za_first_integer,
1261 (int)ATTR_LENGTH(attr.za_first_integer),
1262 (int)ATTR_BSWAP(attr.za_first_integer),
1263 (int)ATTR_NUM(attr.za_first_integer));
1265 zap_cursor_fini(&zc);
1270 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
1273 zap_attribute_t attr;
1274 uint16_t *layout_attrs;
1277 dump_zap_stats(os, object);
1278 (void) printf("\n");
1280 for (zap_cursor_init(&zc, os, object);
1281 zap_cursor_retrieve(&zc, &attr) == 0;
1282 zap_cursor_advance(&zc)) {
1283 (void) printf("\t\t%s = [", attr.za_name);
1284 if (attr.za_num_integers == 0) {
1285 (void) printf("\n");
1289 VERIFY(attr.za_integer_length == 2);
1290 layout_attrs = umem_zalloc(attr.za_num_integers *
1291 attr.za_integer_length, UMEM_NOFAIL);
1293 VERIFY(zap_lookup(os, object, attr.za_name,
1294 attr.za_integer_length,
1295 attr.za_num_integers, layout_attrs) == 0);
1297 for (i = 0; i != attr.za_num_integers; i++)
1298 (void) printf(" %d ", (int)layout_attrs[i]);
1299 (void) printf("]\n");
1300 umem_free(layout_attrs,
1301 attr.za_num_integers * attr.za_integer_length);
1303 zap_cursor_fini(&zc);
1308 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
1311 zap_attribute_t attr;
1312 const char *typenames[] = {
1313 /* 0 */ "not specified",
1315 /* 2 */ "Character Device",
1316 /* 3 */ "3 (invalid)",
1317 /* 4 */ "Directory",
1318 /* 5 */ "5 (invalid)",
1319 /* 6 */ "Block Device",
1320 /* 7 */ "7 (invalid)",
1321 /* 8 */ "Regular File",
1322 /* 9 */ "9 (invalid)",
1323 /* 10 */ "Symbolic Link",
1324 /* 11 */ "11 (invalid)",
1327 /* 14 */ "Event Port",
1328 /* 15 */ "15 (invalid)",
1331 dump_zap_stats(os, object);
1332 (void) printf("\n");
1334 for (zap_cursor_init(&zc, os, object);
1335 zap_cursor_retrieve(&zc, &attr) == 0;
1336 zap_cursor_advance(&zc)) {
1337 (void) printf("\t\t%s = %lld (type: %s)\n",
1338 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
1339 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
1341 zap_cursor_fini(&zc);
1345 get_dtl_refcount(vdev_t *vd)
1349 if (vd->vdev_ops->vdev_op_leaf) {
1350 space_map_t *sm = vd->vdev_dtl_sm;
1353 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
1358 for (unsigned c = 0; c < vd->vdev_children; c++)
1359 refcount += get_dtl_refcount(vd->vdev_child[c]);
1364 get_metaslab_refcount(vdev_t *vd)
1368 if (vd->vdev_top == vd) {
1369 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
1370 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
1373 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
1377 for (unsigned c = 0; c < vd->vdev_children; c++)
1378 refcount += get_metaslab_refcount(vd->vdev_child[c]);
1384 get_obsolete_refcount(vdev_t *vd)
1386 uint64_t obsolete_sm_object;
1389 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object));
1390 if (vd->vdev_top == vd && obsolete_sm_object != 0) {
1391 dmu_object_info_t doi;
1392 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset,
1393 obsolete_sm_object, &doi));
1394 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
1398 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL);
1399 ASSERT3U(obsolete_sm_object, ==, 0);
1401 for (unsigned c = 0; c < vd->vdev_children; c++) {
1402 refcount += get_obsolete_refcount(vd->vdev_child[c]);
1409 get_prev_obsolete_spacemap_refcount(spa_t *spa)
1412 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object;
1413 if (prev_obj != 0) {
1414 dmu_object_info_t doi;
1415 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi));
1416 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
1424 get_checkpoint_refcount(vdev_t *vd)
1428 if (vd->vdev_top == vd && vd->vdev_top_zap != 0 &&
1429 zap_contains(spa_meta_objset(vd->vdev_spa),
1430 vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0)
1433 for (uint64_t c = 0; c < vd->vdev_children; c++)
1434 refcount += get_checkpoint_refcount(vd->vdev_child[c]);
1440 get_log_spacemap_refcount(spa_t *spa)
1442 return (avl_numnodes(&spa->spa_sm_logs_by_txg));
1446 verify_spacemap_refcounts(spa_t *spa)
1448 uint64_t expected_refcount = 0;
1449 uint64_t actual_refcount;
1451 (void) feature_get_refcount(spa,
1452 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
1453 &expected_refcount);
1454 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
1455 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
1456 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev);
1457 actual_refcount += get_prev_obsolete_spacemap_refcount(spa);
1458 actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev);
1459 actual_refcount += get_log_spacemap_refcount(spa);
1461 if (expected_refcount != actual_refcount) {
1462 (void) printf("space map refcount mismatch: expected %lld != "
1464 (longlong_t)expected_refcount,
1465 (longlong_t)actual_refcount);
1472 dump_spacemap(objset_t *os, space_map_t *sm)
1474 const char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
1475 "INVALID", "INVALID", "INVALID", "INVALID" };
1480 (void) printf("space map object %llu:\n",
1481 (longlong_t)sm->sm_object);
1482 (void) printf(" smp_length = 0x%llx\n",
1483 (longlong_t)sm->sm_phys->smp_length);
1484 (void) printf(" smp_alloc = 0x%llx\n",
1485 (longlong_t)sm->sm_phys->smp_alloc);
1487 if (dump_opt['d'] < 6 && dump_opt['m'] < 4)
1491 * Print out the freelist entries in both encoded and decoded form.
1493 uint8_t mapshift = sm->sm_shift;
1495 uint64_t word, entry_id = 0;
1496 for (uint64_t offset = 0; offset < space_map_length(sm);
1497 offset += sizeof (word)) {
1499 VERIFY0(dmu_read(os, space_map_object(sm), offset,
1500 sizeof (word), &word, DMU_READ_PREFETCH));
1502 if (sm_entry_is_debug(word)) {
1503 uint64_t de_txg = SM_DEBUG_TXG_DECODE(word);
1504 uint64_t de_sync_pass = SM_DEBUG_SYNCPASS_DECODE(word);
1507 "\t [%6llu] PADDING\n",
1508 (u_longlong_t)entry_id);
1511 "\t [%6llu] %s: txg %llu pass %llu\n",
1512 (u_longlong_t)entry_id,
1513 ddata[SM_DEBUG_ACTION_DECODE(word)],
1514 (u_longlong_t)de_txg,
1515 (u_longlong_t)de_sync_pass);
1523 uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID;
1525 if (sm_entry_is_single_word(word)) {
1526 entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ?
1528 entry_off = (SM_OFFSET_DECODE(word) << mapshift) +
1530 entry_run = SM_RUN_DECODE(word) << mapshift;
1533 /* it is a two-word entry so we read another word */
1534 ASSERT(sm_entry_is_double_word(word));
1536 uint64_t extra_word;
1537 offset += sizeof (extra_word);
1538 VERIFY0(dmu_read(os, space_map_object(sm), offset,
1539 sizeof (extra_word), &extra_word,
1540 DMU_READ_PREFETCH));
1542 ASSERT3U(offset, <=, space_map_length(sm));
1544 entry_run = SM2_RUN_DECODE(word) << mapshift;
1545 entry_vdev = SM2_VDEV_DECODE(word);
1546 entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ?
1548 entry_off = (SM2_OFFSET_DECODE(extra_word) <<
1549 mapshift) + sm->sm_start;
1553 (void) printf("\t [%6llu] %c range:"
1554 " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n",
1555 (u_longlong_t)entry_id,
1556 entry_type, (u_longlong_t)entry_off,
1557 (u_longlong_t)(entry_off + entry_run),
1558 (u_longlong_t)entry_run,
1559 (u_longlong_t)entry_vdev, words);
1561 if (entry_type == 'A')
1567 if (alloc != space_map_allocated(sm)) {
1568 (void) printf("space_map_object alloc (%lld) INCONSISTENT "
1569 "with space map summary (%lld)\n",
1570 (longlong_t)space_map_allocated(sm), (longlong_t)alloc);
1575 dump_metaslab_stats(metaslab_t *msp)
1578 range_tree_t *rt = msp->ms_allocatable;
1579 zfs_btree_t *t = &msp->ms_allocatable_by_size;
1580 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
1582 /* max sure nicenum has enough space */
1583 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
1585 zdb_nicenum(metaslab_largest_allocatable(msp), maxbuf, sizeof (maxbuf));
1587 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
1588 "segments", zfs_btree_numnodes(t), "maxsize", maxbuf,
1589 "freepct", free_pct);
1590 (void) printf("\tIn-memory histogram:\n");
1591 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
1595 dump_metaslab(metaslab_t *msp)
1597 vdev_t *vd = msp->ms_group->mg_vd;
1598 spa_t *spa = vd->vdev_spa;
1599 space_map_t *sm = msp->ms_sm;
1602 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
1606 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
1607 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
1608 (u_longlong_t)space_map_object(sm), freebuf);
1610 if (dump_opt['m'] > 2 && !dump_opt['L']) {
1611 mutex_enter(&msp->ms_lock);
1612 VERIFY0(metaslab_load(msp));
1613 range_tree_stat_verify(msp->ms_allocatable);
1614 dump_metaslab_stats(msp);
1615 metaslab_unload(msp);
1616 mutex_exit(&msp->ms_lock);
1619 if (dump_opt['m'] > 1 && sm != NULL &&
1620 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
1622 * The space map histogram represents free space in chunks
1623 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
1625 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
1626 (u_longlong_t)msp->ms_fragmentation);
1627 dump_histogram(sm->sm_phys->smp_histogram,
1628 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
1631 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
1632 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
1634 if (spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) {
1635 (void) printf("\tFlush data:\n\tunflushed txg=%llu\n\n",
1636 (u_longlong_t)metaslab_unflushed_txg(msp));
1641 print_vdev_metaslab_header(vdev_t *vd)
1643 vdev_alloc_bias_t alloc_bias = vd->vdev_alloc_bias;
1644 const char *bias_str = "";
1645 if (alloc_bias == VDEV_BIAS_LOG || vd->vdev_islog) {
1646 bias_str = VDEV_ALLOC_BIAS_LOG;
1647 } else if (alloc_bias == VDEV_BIAS_SPECIAL) {
1648 bias_str = VDEV_ALLOC_BIAS_SPECIAL;
1649 } else if (alloc_bias == VDEV_BIAS_DEDUP) {
1650 bias_str = VDEV_ALLOC_BIAS_DEDUP;
1653 uint64_t ms_flush_data_obj = 0;
1654 if (vd->vdev_top_zap != 0) {
1655 int error = zap_lookup(spa_meta_objset(vd->vdev_spa),
1656 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS,
1657 sizeof (uint64_t), 1, &ms_flush_data_obj);
1658 if (error != ENOENT) {
1663 (void) printf("\tvdev %10llu %s",
1664 (u_longlong_t)vd->vdev_id, bias_str);
1666 if (ms_flush_data_obj != 0) {
1667 (void) printf(" ms_unflushed_phys object %llu",
1668 (u_longlong_t)ms_flush_data_obj);
1671 (void) printf("\n\t%-10s%5llu %-19s %-15s %-12s\n",
1672 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
1673 "offset", "spacemap", "free");
1674 (void) printf("\t%15s %19s %15s %12s\n",
1675 "---------------", "-------------------",
1676 "---------------", "------------");
1680 dump_metaslab_groups(spa_t *spa)
1682 vdev_t *rvd = spa->spa_root_vdev;
1683 metaslab_class_t *mc = spa_normal_class(spa);
1684 uint64_t fragmentation;
1686 metaslab_class_histogram_verify(mc);
1688 for (unsigned c = 0; c < rvd->vdev_children; c++) {
1689 vdev_t *tvd = rvd->vdev_child[c];
1690 metaslab_group_t *mg = tvd->vdev_mg;
1692 if (mg == NULL || mg->mg_class != mc)
1695 metaslab_group_histogram_verify(mg);
1696 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
1698 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
1700 (u_longlong_t)tvd->vdev_id,
1701 (u_longlong_t)tvd->vdev_ms_count);
1702 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
1703 (void) printf("%3s\n", "-");
1705 (void) printf("%3llu%%\n",
1706 (u_longlong_t)mg->mg_fragmentation);
1708 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
1711 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
1712 fragmentation = metaslab_class_fragmentation(mc);
1713 if (fragmentation == ZFS_FRAG_INVALID)
1714 (void) printf("\t%3s\n", "-");
1716 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
1717 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
1721 print_vdev_indirect(vdev_t *vd)
1723 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
1724 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
1725 vdev_indirect_births_t *vib = vd->vdev_indirect_births;
1728 ASSERT3P(vib, ==, NULL);
1732 ASSERT3U(vdev_indirect_mapping_object(vim), ==,
1733 vic->vic_mapping_object);
1734 ASSERT3U(vdev_indirect_births_object(vib), ==,
1735 vic->vic_births_object);
1737 (void) printf("indirect births obj %llu:\n",
1738 (longlong_t)vic->vic_births_object);
1739 (void) printf(" vib_count = %llu\n",
1740 (longlong_t)vdev_indirect_births_count(vib));
1741 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) {
1742 vdev_indirect_birth_entry_phys_t *cur_vibe =
1743 &vib->vib_entries[i];
1744 (void) printf("\toffset %llx -> txg %llu\n",
1745 (longlong_t)cur_vibe->vibe_offset,
1746 (longlong_t)cur_vibe->vibe_phys_birth_txg);
1748 (void) printf("\n");
1750 (void) printf("indirect mapping obj %llu:\n",
1751 (longlong_t)vic->vic_mapping_object);
1752 (void) printf(" vim_max_offset = 0x%llx\n",
1753 (longlong_t)vdev_indirect_mapping_max_offset(vim));
1754 (void) printf(" vim_bytes_mapped = 0x%llx\n",
1755 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim));
1756 (void) printf(" vim_count = %llu\n",
1757 (longlong_t)vdev_indirect_mapping_num_entries(vim));
1759 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3)
1762 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim);
1764 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
1765 vdev_indirect_mapping_entry_phys_t *vimep =
1766 &vim->vim_entries[i];
1767 (void) printf("\t<%llx:%llx:%llx> -> "
1768 "<%llx:%llx:%llx> (%x obsolete)\n",
1769 (longlong_t)vd->vdev_id,
1770 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
1771 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
1772 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst),
1773 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst),
1774 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
1777 (void) printf("\n");
1779 uint64_t obsolete_sm_object;
1780 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object));
1781 if (obsolete_sm_object != 0) {
1782 objset_t *mos = vd->vdev_spa->spa_meta_objset;
1783 (void) printf("obsolete space map object %llu:\n",
1784 (u_longlong_t)obsolete_sm_object);
1785 ASSERT(vd->vdev_obsolete_sm != NULL);
1786 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==,
1787 obsolete_sm_object);
1788 dump_spacemap(mos, vd->vdev_obsolete_sm);
1789 (void) printf("\n");
1794 dump_metaslabs(spa_t *spa)
1796 vdev_t *vd, *rvd = spa->spa_root_vdev;
1797 uint64_t m, c = 0, children = rvd->vdev_children;
1799 (void) printf("\nMetaslabs:\n");
1801 if (!dump_opt['d'] && zopt_metaslab_args > 0) {
1802 c = zopt_metaslab[0];
1805 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
1807 if (zopt_metaslab_args > 1) {
1808 vd = rvd->vdev_child[c];
1809 print_vdev_metaslab_header(vd);
1811 for (m = 1; m < zopt_metaslab_args; m++) {
1812 if (zopt_metaslab[m] < vd->vdev_ms_count)
1814 vd->vdev_ms[zopt_metaslab[m]]);
1816 (void) fprintf(stderr, "bad metaslab "
1818 (u_longlong_t)zopt_metaslab[m]);
1820 (void) printf("\n");
1825 for (; c < children; c++) {
1826 vd = rvd->vdev_child[c];
1827 print_vdev_metaslab_header(vd);
1829 print_vdev_indirect(vd);
1831 for (m = 0; m < vd->vdev_ms_count; m++)
1832 dump_metaslab(vd->vdev_ms[m]);
1833 (void) printf("\n");
1838 dump_log_spacemaps(spa_t *spa)
1840 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP))
1843 (void) printf("\nLog Space Maps in Pool:\n");
1844 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg);
1845 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) {
1846 space_map_t *sm = NULL;
1847 VERIFY0(space_map_open(&sm, spa_meta_objset(spa),
1848 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT));
1850 (void) printf("Log Spacemap object %llu txg %llu\n",
1851 (u_longlong_t)sls->sls_sm_obj, (u_longlong_t)sls->sls_txg);
1852 dump_spacemap(spa->spa_meta_objset, sm);
1853 space_map_close(sm);
1855 (void) printf("\n");
1859 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
1861 const ddt_phys_t *ddp = dde->dde_phys;
1862 const ddt_key_t *ddk = &dde->dde_key;
1863 const char *types[4] = { "ditto", "single", "double", "triple" };
1864 char blkbuf[BP_SPRINTF_LEN];
1868 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
1869 if (ddp->ddp_phys_birth == 0)
1871 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
1872 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
1873 (void) printf("index %llx refcnt %llu %s %s\n",
1874 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
1880 dump_dedup_ratio(const ddt_stat_t *dds)
1882 double rL, rP, rD, D, dedup, compress, copies;
1884 if (dds->dds_blocks == 0)
1887 rL = (double)dds->dds_ref_lsize;
1888 rP = (double)dds->dds_ref_psize;
1889 rD = (double)dds->dds_ref_dsize;
1890 D = (double)dds->dds_dsize;
1896 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
1897 "dedup * compress / copies = %.2f\n\n",
1898 dedup, compress, copies, dedup * compress / copies);
1902 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
1904 char name[DDT_NAMELEN];
1907 dmu_object_info_t doi;
1908 uint64_t count, dspace, mspace;
1911 error = ddt_object_info(ddt, type, class, &doi);
1913 if (error == ENOENT)
1917 error = ddt_object_count(ddt, type, class, &count);
1922 dspace = doi.doi_physical_blocks_512 << 9;
1923 mspace = doi.doi_fill_count * doi.doi_data_block_size;
1925 ddt_object_name(ddt, type, class, name);
1927 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
1929 (u_longlong_t)count,
1930 (u_longlong_t)(dspace / count),
1931 (u_longlong_t)(mspace / count));
1933 if (dump_opt['D'] < 3)
1936 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
1938 if (dump_opt['D'] < 4)
1941 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
1944 (void) printf("%s contents:\n\n", name);
1946 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1947 dump_dde(ddt, &dde, walk);
1949 ASSERT3U(error, ==, ENOENT);
1951 (void) printf("\n");
1955 dump_all_ddts(spa_t *spa)
1957 ddt_histogram_t ddh_total;
1958 ddt_stat_t dds_total;
1960 bzero(&ddh_total, sizeof (ddh_total));
1961 bzero(&dds_total, sizeof (dds_total));
1963 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1964 ddt_t *ddt = spa->spa_ddt[c];
1965 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1966 for (enum ddt_class class = 0; class < DDT_CLASSES;
1968 dump_ddt(ddt, type, class);
1973 ddt_get_dedup_stats(spa, &dds_total);
1975 if (dds_total.dds_blocks == 0) {
1976 (void) printf("All DDTs are empty\n");
1980 (void) printf("\n");
1982 if (dump_opt['D'] > 1) {
1983 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1984 ddt_get_dedup_histogram(spa, &ddh_total);
1985 zpool_dump_ddt(&dds_total, &ddh_total);
1988 dump_dedup_ratio(&dds_total);
1992 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1996 (void) printf("%s [%llu,%llu) length %llu\n",
1998 (u_longlong_t)start,
1999 (u_longlong_t)(start + size),
2000 (u_longlong_t)(size));
2004 dump_dtl(vdev_t *vd, int indent)
2006 spa_t *spa = vd->vdev_spa;
2008 const char *name[DTL_TYPES] = { "missing", "partial", "scrub",
2012 spa_vdev_state_enter(spa, SCL_NONE);
2013 required = vdev_dtl_required(vd);
2014 (void) spa_vdev_state_exit(spa, NULL, 0);
2017 (void) printf("\nDirty time logs:\n\n");
2019 (void) printf("\t%*s%s [%s]\n", indent, "",
2020 vd->vdev_path ? vd->vdev_path :
2021 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
2022 required ? "DTL-required" : "DTL-expendable");
2024 for (int t = 0; t < DTL_TYPES; t++) {
2025 range_tree_t *rt = vd->vdev_dtl[t];
2026 if (range_tree_space(rt) == 0)
2028 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
2029 indent + 2, "", name[t]);
2030 range_tree_walk(rt, dump_dtl_seg, prefix);
2031 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
2032 dump_spacemap(spa->spa_meta_objset,
2036 for (unsigned c = 0; c < vd->vdev_children; c++)
2037 dump_dtl(vd->vdev_child[c], indent + 4);
2041 dump_history(spa_t *spa)
2043 nvlist_t **events = NULL;
2045 uint64_t resid, len, off = 0;
2051 char internalstr[MAXPATHLEN];
2053 if ((buf = malloc(SPA_OLD_MAXBLOCKSIZE)) == NULL) {
2054 (void) fprintf(stderr, "%s: unable to allocate I/O buffer\n",
2060 len = SPA_OLD_MAXBLOCKSIZE;
2062 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
2063 (void) fprintf(stderr, "Unable to read history: "
2064 "error %d\n", error);
2069 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
2075 (void) printf("\nHistory:\n");
2076 for (unsigned i = 0; i < num; i++) {
2077 uint64_t time, txg, ievent;
2079 boolean_t printed = B_FALSE;
2081 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
2084 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
2086 if (nvlist_lookup_uint64(events[i],
2087 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
2089 verify(nvlist_lookup_uint64(events[i],
2090 ZPOOL_HIST_TXG, &txg) == 0);
2091 verify(nvlist_lookup_string(events[i],
2092 ZPOOL_HIST_INT_STR, &intstr) == 0);
2093 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
2096 (void) snprintf(internalstr,
2097 sizeof (internalstr),
2098 "[internal %s txg:%lld] %s",
2099 zfs_history_event_names[ievent],
2100 (longlong_t)txg, intstr);
2104 (void) localtime_r(&tsec, &t);
2105 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
2106 (void) printf("%s %s\n", tbuf, cmd);
2110 if (dump_opt['h'] > 1) {
2112 (void) printf("unrecognized record:\n");
2113 dump_nvlist(events[i], 2);
2121 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
2126 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
2127 const zbookmark_phys_t *zb)
2130 ASSERT(zb->zb_level < 0);
2131 if (zb->zb_object == 0)
2132 return (zb->zb_blkid);
2133 return (zb->zb_blkid * BP_GET_LSIZE(bp));
2136 ASSERT(zb->zb_level >= 0);
2138 return ((zb->zb_blkid <<
2139 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
2140 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
2144 snprintf_zstd_header(spa_t *spa, char *blkbuf, size_t buflen,
2150 zfs_zstdhdr_t zstd_hdr;
2153 if (BP_GET_COMPRESS(bp) != ZIO_COMPRESS_ZSTD)
2159 if (BP_IS_EMBEDDED(bp)) {
2160 buf = malloc(SPA_MAXBLOCKSIZE);
2162 (void) fprintf(stderr, "out of memory\n");
2165 decode_embedded_bp_compressed(bp, buf);
2166 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr));
2168 zstd_hdr.c_len = BE_32(zstd_hdr.c_len);
2169 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level);
2170 (void) snprintf(blkbuf + strlen(blkbuf),
2171 buflen - strlen(blkbuf),
2172 " ZSTD:size=%u:version=%u:level=%u:EMBEDDED",
2173 zstd_hdr.c_len, zstd_hdr.version, zstd_hdr.level);
2177 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE);
2178 zio = zio_root(spa, NULL, NULL, 0);
2180 /* Decrypt but don't decompress so we can read the compression header */
2181 zio_nowait(zio_read(zio, spa, bp, pabd, BP_GET_PSIZE(bp), NULL, NULL,
2182 ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW_COMPRESS,
2184 error = zio_wait(zio);
2186 (void) fprintf(stderr, "read failed: %d\n", error);
2189 buf = abd_borrow_buf_copy(pabd, BP_GET_LSIZE(bp));
2190 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr));
2191 zstd_hdr.c_len = BE_32(zstd_hdr.c_len);
2192 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level);
2194 (void) snprintf(blkbuf + strlen(blkbuf),
2195 buflen - strlen(blkbuf),
2196 " ZSTD:size=%u:version=%u:level=%u:NORMAL",
2197 zstd_hdr.c_len, zstd_hdr.version, zstd_hdr.level);
2199 abd_return_buf_copy(pabd, buf, BP_GET_LSIZE(bp));
2203 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp,
2206 const dva_t *dva = bp->blk_dva;
2207 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
2210 if (dump_opt['b'] >= 6) {
2211 snprintf_blkptr(blkbuf, buflen, bp);
2213 (void) snprintf(blkbuf + strlen(blkbuf),
2214 buflen - strlen(blkbuf), " %s", "FREE");
2219 if (BP_IS_EMBEDDED(bp)) {
2220 (void) sprintf(blkbuf,
2221 "EMBEDDED et=%u %llxL/%llxP B=%llu",
2222 (int)BPE_GET_ETYPE(bp),
2223 (u_longlong_t)BPE_GET_LSIZE(bp),
2224 (u_longlong_t)BPE_GET_PSIZE(bp),
2225 (u_longlong_t)bp->blk_birth);
2231 for (i = 0; i < ndvas; i++)
2232 (void) snprintf(blkbuf + strlen(blkbuf),
2233 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
2234 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
2235 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
2236 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
2238 if (BP_IS_HOLE(bp)) {
2239 (void) snprintf(blkbuf + strlen(blkbuf),
2240 buflen - strlen(blkbuf),
2242 (u_longlong_t)BP_GET_LSIZE(bp),
2243 (u_longlong_t)bp->blk_birth);
2245 (void) snprintf(blkbuf + strlen(blkbuf),
2246 buflen - strlen(blkbuf),
2247 "%llxL/%llxP F=%llu B=%llu/%llu",
2248 (u_longlong_t)BP_GET_LSIZE(bp),
2249 (u_longlong_t)BP_GET_PSIZE(bp),
2250 (u_longlong_t)BP_GET_FILL(bp),
2251 (u_longlong_t)bp->blk_birth,
2252 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
2254 (void) snprintf(blkbuf + strlen(blkbuf),
2255 buflen - strlen(blkbuf), " %s", "FREE");
2256 (void) snprintf(blkbuf + strlen(blkbuf),
2257 buflen - strlen(blkbuf), " cksum=%llx:%llx:%llx:%llx",
2258 (u_longlong_t)bp->blk_cksum.zc_word[0],
2259 (u_longlong_t)bp->blk_cksum.zc_word[1],
2260 (u_longlong_t)bp->blk_cksum.zc_word[2],
2261 (u_longlong_t)bp->blk_cksum.zc_word[3]);
2266 print_indirect(spa_t *spa, blkptr_t *bp, const zbookmark_phys_t *zb,
2267 const dnode_phys_t *dnp)
2269 char blkbuf[BP_SPRINTF_LEN];
2272 if (!BP_IS_EMBEDDED(bp)) {
2273 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
2274 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
2277 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
2279 ASSERT(zb->zb_level >= 0);
2281 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
2282 if (l == zb->zb_level) {
2283 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
2289 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, B_FALSE);
2290 if (dump_opt['Z'] && BP_GET_COMPRESS(bp) == ZIO_COMPRESS_ZSTD)
2291 snprintf_zstd_header(spa, blkbuf, sizeof (blkbuf), bp);
2292 (void) printf("%s\n", blkbuf);
2296 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
2297 blkptr_t *bp, const zbookmark_phys_t *zb)
2301 if (bp->blk_birth == 0)
2304 print_indirect(spa, bp, zb, dnp);
2306 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
2307 arc_flags_t flags = ARC_FLAG_WAIT;
2310 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
2313 ASSERT(!BP_IS_REDACTED(bp));
2315 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
2316 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
2319 ASSERT(buf->b_data);
2321 /* recursively visit blocks below this */
2323 for (i = 0; i < epb; i++, cbp++) {
2324 zbookmark_phys_t czb;
2326 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
2328 zb->zb_blkid * epb + i);
2329 err = visit_indirect(spa, dnp, cbp, &czb);
2332 fill += BP_GET_FILL(cbp);
2335 ASSERT3U(fill, ==, BP_GET_FILL(bp));
2336 arc_buf_destroy(buf, &buf);
2344 dump_indirect(dnode_t *dn)
2346 dnode_phys_t *dnp = dn->dn_phys;
2348 zbookmark_phys_t czb;
2350 (void) printf("Indirect blocks:\n");
2352 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
2353 dn->dn_object, dnp->dn_nlevels - 1, 0);
2354 for (j = 0; j < dnp->dn_nblkptr; j++) {
2356 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
2357 &dnp->dn_blkptr[j], &czb);
2360 (void) printf("\n");
2365 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
2367 dsl_dir_phys_t *dd = data;
2371 /* make sure nicenum has enough space */
2372 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
2377 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
2379 crtime = dd->dd_creation_time;
2380 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
2381 (void) printf("\t\thead_dataset_obj = %llu\n",
2382 (u_longlong_t)dd->dd_head_dataset_obj);
2383 (void) printf("\t\tparent_dir_obj = %llu\n",
2384 (u_longlong_t)dd->dd_parent_obj);
2385 (void) printf("\t\torigin_obj = %llu\n",
2386 (u_longlong_t)dd->dd_origin_obj);
2387 (void) printf("\t\tchild_dir_zapobj = %llu\n",
2388 (u_longlong_t)dd->dd_child_dir_zapobj);
2389 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
2390 (void) printf("\t\tused_bytes = %s\n", nice);
2391 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
2392 (void) printf("\t\tcompressed_bytes = %s\n", nice);
2393 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
2394 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
2395 zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
2396 (void) printf("\t\tquota = %s\n", nice);
2397 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
2398 (void) printf("\t\treserved = %s\n", nice);
2399 (void) printf("\t\tprops_zapobj = %llu\n",
2400 (u_longlong_t)dd->dd_props_zapobj);
2401 (void) printf("\t\tdeleg_zapobj = %llu\n",
2402 (u_longlong_t)dd->dd_deleg_zapobj);
2403 (void) printf("\t\tflags = %llx\n",
2404 (u_longlong_t)dd->dd_flags);
2407 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
2409 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
2416 (void) printf("\t\tclones = %llu\n",
2417 (u_longlong_t)dd->dd_clones);
2422 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
2424 dsl_dataset_phys_t *ds = data;
2426 char used[32], compressed[32], uncompressed[32], unique[32];
2427 char blkbuf[BP_SPRINTF_LEN];
2429 /* make sure nicenum has enough space */
2430 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
2431 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
2432 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
2433 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
2438 ASSERT(size == sizeof (*ds));
2439 crtime = ds->ds_creation_time;
2440 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
2441 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
2442 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
2443 sizeof (uncompressed));
2444 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
2445 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
2447 (void) printf("\t\tdir_obj = %llu\n",
2448 (u_longlong_t)ds->ds_dir_obj);
2449 (void) printf("\t\tprev_snap_obj = %llu\n",
2450 (u_longlong_t)ds->ds_prev_snap_obj);
2451 (void) printf("\t\tprev_snap_txg = %llu\n",
2452 (u_longlong_t)ds->ds_prev_snap_txg);
2453 (void) printf("\t\tnext_snap_obj = %llu\n",
2454 (u_longlong_t)ds->ds_next_snap_obj);
2455 (void) printf("\t\tsnapnames_zapobj = %llu\n",
2456 (u_longlong_t)ds->ds_snapnames_zapobj);
2457 (void) printf("\t\tnum_children = %llu\n",
2458 (u_longlong_t)ds->ds_num_children);
2459 (void) printf("\t\tuserrefs_obj = %llu\n",
2460 (u_longlong_t)ds->ds_userrefs_obj);
2461 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
2462 (void) printf("\t\tcreation_txg = %llu\n",
2463 (u_longlong_t)ds->ds_creation_txg);
2464 (void) printf("\t\tdeadlist_obj = %llu\n",
2465 (u_longlong_t)ds->ds_deadlist_obj);
2466 (void) printf("\t\tused_bytes = %s\n", used);
2467 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
2468 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
2469 (void) printf("\t\tunique = %s\n", unique);
2470 (void) printf("\t\tfsid_guid = %llu\n",
2471 (u_longlong_t)ds->ds_fsid_guid);
2472 (void) printf("\t\tguid = %llu\n",
2473 (u_longlong_t)ds->ds_guid);
2474 (void) printf("\t\tflags = %llx\n",
2475 (u_longlong_t)ds->ds_flags);
2476 (void) printf("\t\tnext_clones_obj = %llu\n",
2477 (u_longlong_t)ds->ds_next_clones_obj);
2478 (void) printf("\t\tprops_obj = %llu\n",
2479 (u_longlong_t)ds->ds_props_obj);
2480 (void) printf("\t\tbp = %s\n", blkbuf);
2485 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2487 char blkbuf[BP_SPRINTF_LEN];
2489 if (bp->blk_birth != 0) {
2490 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2491 (void) printf("\t%s\n", blkbuf);
2497 dump_bptree(objset_t *os, uint64_t obj, const char *name)
2503 /* make sure nicenum has enough space */
2504 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
2506 if (dump_opt['d'] < 3)
2509 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
2511 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
2512 (void) printf("\n %s: %llu datasets, %s\n",
2513 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
2514 dmu_buf_rele(db, FTAG);
2516 if (dump_opt['d'] < 5)
2519 (void) printf("\n");
2521 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
2526 dump_bpobj_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, dmu_tx_t *tx)
2528 char blkbuf[BP_SPRINTF_LEN];
2530 ASSERT(bp->blk_birth != 0);
2531 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, bp_freed);
2532 (void) printf("\t%s\n", blkbuf);
2537 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent)
2544 /* make sure nicenum has enough space */
2545 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
2546 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
2547 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
2549 if (dump_opt['d'] < 3)
2552 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
2553 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
2554 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
2555 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
2556 if (bpo->bpo_havefreed) {
2557 (void) printf(" %*s: object %llu, %llu local "
2558 "blkptrs, %llu freed, %llu subobjs in object %llu, "
2559 "%s (%s/%s comp)\n",
2561 (u_longlong_t)bpo->bpo_object,
2562 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
2563 (u_longlong_t)bpo->bpo_phys->bpo_num_freed,
2564 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
2565 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
2566 bytes, comp, uncomp);
2568 (void) printf(" %*s: object %llu, %llu local "
2569 "blkptrs, %llu subobjs in object %llu, "
2570 "%s (%s/%s comp)\n",
2572 (u_longlong_t)bpo->bpo_object,
2573 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
2574 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
2575 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
2576 bytes, comp, uncomp);
2579 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
2583 VERIFY0(dmu_read(bpo->bpo_os,
2584 bpo->bpo_phys->bpo_subobjs,
2585 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
2586 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
2588 (void) printf("ERROR %u while trying to open "
2590 error, (u_longlong_t)subobj);
2593 dump_full_bpobj(&subbpo, "subobj", indent + 1);
2594 bpobj_close(&subbpo);
2597 if (bpo->bpo_havefreed) {
2598 (void) printf(" %*s: object %llu, %llu blkptrs, "
2601 (u_longlong_t)bpo->bpo_object,
2602 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
2603 (u_longlong_t)bpo->bpo_phys->bpo_num_freed,
2606 (void) printf(" %*s: object %llu, %llu blkptrs, "
2609 (u_longlong_t)bpo->bpo_object,
2610 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
2615 if (dump_opt['d'] < 5)
2620 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
2621 (void) printf("\n");
2626 dump_bookmark(dsl_pool_t *dp, char *name, boolean_t print_redact,
2627 boolean_t print_list)
2630 zfs_bookmark_phys_t prop;
2631 objset_t *mos = dp->dp_spa->spa_meta_objset;
2632 err = dsl_bookmark_lookup(dp, name, NULL, &prop);
2638 (void) printf("\t#%s: ", strchr(name, '#') + 1);
2639 (void) printf("{guid: %llx creation_txg: %llu creation_time: "
2640 "%llu redaction_obj: %llu}\n", (u_longlong_t)prop.zbm_guid,
2641 (u_longlong_t)prop.zbm_creation_txg,
2642 (u_longlong_t)prop.zbm_creation_time,
2643 (u_longlong_t)prop.zbm_redaction_obj);
2645 IMPLY(print_list, print_redact);
2646 if (!print_redact || prop.zbm_redaction_obj == 0)
2649 redaction_list_t *rl;
2650 VERIFY0(dsl_redaction_list_hold_obj(dp,
2651 prop.zbm_redaction_obj, FTAG, &rl));
2653 redaction_list_phys_t *rlp = rl->rl_phys;
2654 (void) printf("\tRedacted:\n\t\tProgress: ");
2655 if (rlp->rlp_last_object != UINT64_MAX ||
2656 rlp->rlp_last_blkid != UINT64_MAX) {
2657 (void) printf("%llu %llu (incomplete)\n",
2658 (u_longlong_t)rlp->rlp_last_object,
2659 (u_longlong_t)rlp->rlp_last_blkid);
2661 (void) printf("complete\n");
2663 (void) printf("\t\tSnapshots: [");
2664 for (unsigned int i = 0; i < rlp->rlp_num_snaps; i++) {
2666 (void) printf(", ");
2667 (void) printf("%0llu",
2668 (u_longlong_t)rlp->rlp_snaps[i]);
2670 (void) printf("]\n\t\tLength: %llu\n",
2671 (u_longlong_t)rlp->rlp_num_entries);
2674 dsl_redaction_list_rele(rl, FTAG);
2678 if (rlp->rlp_num_entries == 0) {
2679 dsl_redaction_list_rele(rl, FTAG);
2680 (void) printf("\t\tRedaction List: []\n\n");
2684 redact_block_phys_t *rbp_buf;
2686 dmu_object_info_t doi;
2688 VERIFY0(dmu_object_info(mos, prop.zbm_redaction_obj, &doi));
2689 size = doi.doi_max_offset;
2690 rbp_buf = kmem_alloc(size, KM_SLEEP);
2692 err = dmu_read(mos, prop.zbm_redaction_obj, 0, size,
2695 dsl_redaction_list_rele(rl, FTAG);
2696 kmem_free(rbp_buf, size);
2700 (void) printf("\t\tRedaction List: [{object: %llx, offset: "
2701 "%llx, blksz: %x, count: %llx}",
2702 (u_longlong_t)rbp_buf[0].rbp_object,
2703 (u_longlong_t)rbp_buf[0].rbp_blkid,
2704 (uint_t)(redact_block_get_size(&rbp_buf[0])),
2705 (u_longlong_t)redact_block_get_count(&rbp_buf[0]));
2707 for (size_t i = 1; i < rlp->rlp_num_entries; i++) {
2708 (void) printf(",\n\t\t{object: %llx, offset: %llx, "
2709 "blksz: %x, count: %llx}",
2710 (u_longlong_t)rbp_buf[i].rbp_object,
2711 (u_longlong_t)rbp_buf[i].rbp_blkid,
2712 (uint_t)(redact_block_get_size(&rbp_buf[i])),
2713 (u_longlong_t)redact_block_get_count(&rbp_buf[i]));
2715 dsl_redaction_list_rele(rl, FTAG);
2716 kmem_free(rbp_buf, size);
2717 (void) printf("]\n\n");
2722 dump_bookmarks(objset_t *os, int verbosity)
2725 zap_attribute_t attr;
2726 dsl_dataset_t *ds = dmu_objset_ds(os);
2727 dsl_pool_t *dp = spa_get_dsl(os->os_spa);
2728 objset_t *mos = os->os_spa->spa_meta_objset;
2731 dsl_pool_config_enter(dp, FTAG);
2733 for (zap_cursor_init(&zc, mos, ds->ds_bookmarks_obj);
2734 zap_cursor_retrieve(&zc, &attr) == 0;
2735 zap_cursor_advance(&zc)) {
2736 char osname[ZFS_MAX_DATASET_NAME_LEN];
2737 char buf[ZFS_MAX_DATASET_NAME_LEN];
2738 dmu_objset_name(os, osname);
2739 VERIFY3S(0, <=, snprintf(buf, sizeof (buf), "%s#%s", osname,
2741 (void) dump_bookmark(dp, buf, verbosity >= 5, verbosity >= 6);
2743 zap_cursor_fini(&zc);
2744 dsl_pool_config_exit(dp, FTAG);
2748 bpobj_count_refd(bpobj_t *bpo)
2750 mos_obj_refd(bpo->bpo_object);
2752 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
2753 mos_obj_refd(bpo->bpo_phys->bpo_subobjs);
2754 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
2758 VERIFY0(dmu_read(bpo->bpo_os,
2759 bpo->bpo_phys->bpo_subobjs,
2760 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
2761 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
2763 (void) printf("ERROR %u while trying to open "
2765 error, (u_longlong_t)subobj);
2768 bpobj_count_refd(&subbpo);
2769 bpobj_close(&subbpo);
2775 dsl_deadlist_entry_count_refd(void *arg, dsl_deadlist_entry_t *dle)
2778 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj;
2779 if (dle->dle_bpobj.bpo_object != empty_bpobj)
2780 bpobj_count_refd(&dle->dle_bpobj);
2785 dsl_deadlist_entry_dump(void *arg, dsl_deadlist_entry_t *dle)
2787 ASSERT(arg == NULL);
2788 if (dump_opt['d'] >= 5) {
2790 (void) snprintf(buf, sizeof (buf),
2791 "mintxg %llu -> obj %llu",
2792 (longlong_t)dle->dle_mintxg,
2793 (longlong_t)dle->dle_bpobj.bpo_object);
2795 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
2797 (void) printf("mintxg %llu -> obj %llu\n",
2798 (longlong_t)dle->dle_mintxg,
2799 (longlong_t)dle->dle_bpobj.bpo_object);
2805 dump_blkptr_list(dsl_deadlist_t *dl, char *name)
2811 spa_t *spa = dmu_objset_spa(dl->dl_os);
2812 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj;
2814 if (dl->dl_oldfmt) {
2815 if (dl->dl_bpobj.bpo_object != empty_bpobj)
2816 bpobj_count_refd(&dl->dl_bpobj);
2818 mos_obj_refd(dl->dl_object);
2819 dsl_deadlist_iterate(dl, dsl_deadlist_entry_count_refd, spa);
2822 /* make sure nicenum has enough space */
2823 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
2824 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
2825 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
2826 CTASSERT(sizeof (entries) >= NN_NUMBUF_SZ);
2828 if (dump_opt['d'] < 3)
2831 if (dl->dl_oldfmt) {
2832 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
2836 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
2837 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
2838 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
2839 zdb_nicenum(avl_numnodes(&dl->dl_tree), entries, sizeof (entries));
2840 (void) printf("\n %s: %s (%s/%s comp), %s entries\n",
2841 name, bytes, comp, uncomp, entries);
2843 if (dump_opt['d'] < 4)
2846 (void) printf("\n");
2848 dsl_deadlist_iterate(dl, dsl_deadlist_entry_dump, NULL);
2852 verify_dd_livelist(objset_t *os)
2854 uint64_t ll_used, used, ll_comp, comp, ll_uncomp, uncomp;
2855 dsl_pool_t *dp = spa_get_dsl(os->os_spa);
2856 dsl_dir_t *dd = os->os_dsl_dataset->ds_dir;
2858 ASSERT(!dmu_objset_is_snapshot(os));
2859 if (!dsl_deadlist_is_open(&dd->dd_livelist))
2862 /* Iterate through the livelist to check for duplicates */
2863 dsl_deadlist_iterate(&dd->dd_livelist, sublivelist_verify_lightweight,
2866 dsl_pool_config_enter(dp, FTAG);
2867 dsl_deadlist_space(&dd->dd_livelist, &ll_used,
2868 &ll_comp, &ll_uncomp);
2870 dsl_dataset_t *origin_ds;
2871 ASSERT(dsl_pool_config_held(dp));
2872 VERIFY0(dsl_dataset_hold_obj(dp,
2873 dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin_ds));
2874 VERIFY0(dsl_dataset_space_written(origin_ds, os->os_dsl_dataset,
2875 &used, &comp, &uncomp));
2876 dsl_dataset_rele(origin_ds, FTAG);
2877 dsl_pool_config_exit(dp, FTAG);
2879 * It's possible that the dataset's uncomp space is larger than the
2880 * livelist's because livelists do not track embedded block pointers
2882 if (used != ll_used || comp != ll_comp || uncomp < ll_uncomp) {
2883 char nice_used[32], nice_comp[32], nice_uncomp[32];
2884 (void) printf("Discrepancy in space accounting:\n");
2885 zdb_nicenum(used, nice_used, sizeof (nice_used));
2886 zdb_nicenum(comp, nice_comp, sizeof (nice_comp));
2887 zdb_nicenum(uncomp, nice_uncomp, sizeof (nice_uncomp));
2888 (void) printf("dir: used %s, comp %s, uncomp %s\n",
2889 nice_used, nice_comp, nice_uncomp);
2890 zdb_nicenum(ll_used, nice_used, sizeof (nice_used));
2891 zdb_nicenum(ll_comp, nice_comp, sizeof (nice_comp));
2892 zdb_nicenum(ll_uncomp, nice_uncomp, sizeof (nice_uncomp));
2893 (void) printf("livelist: used %s, comp %s, uncomp %s\n",
2894 nice_used, nice_comp, nice_uncomp);
2900 static avl_tree_t idx_tree;
2901 static avl_tree_t domain_tree;
2902 static boolean_t fuid_table_loaded;
2903 static objset_t *sa_os = NULL;
2904 static sa_attr_type_t *sa_attr_table = NULL;
2907 open_objset(const char *path, void *tag, objset_t **osp)
2910 uint64_t sa_attrs = 0;
2911 uint64_t version = 0;
2913 VERIFY3P(sa_os, ==, NULL);
2915 * We can't own an objset if it's redacted. Therefore, we do this
2916 * dance: hold the objset, then acquire a long hold on its dataset, then
2917 * release the pool (which is held as part of holding the objset).
2919 err = dmu_objset_hold(path, tag, osp);
2921 (void) fprintf(stderr, "failed to hold dataset '%s': %s\n",
2922 path, strerror(err));
2925 dsl_dataset_long_hold(dmu_objset_ds(*osp), tag);
2926 dsl_pool_rele(dmu_objset_pool(*osp), tag);
2928 if (dmu_objset_type(*osp) == DMU_OST_ZFS && !(*osp)->os_encrypted) {
2929 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
2931 if (version >= ZPL_VERSION_SA) {
2932 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
2935 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
2938 (void) fprintf(stderr, "sa_setup failed: %s\n",
2940 dsl_dataset_long_rele(dmu_objset_ds(*osp), tag);
2941 dsl_dataset_rele(dmu_objset_ds(*osp), tag);
2951 close_objset(objset_t *os, void *tag)
2953 VERIFY3P(os, ==, sa_os);
2954 if (os->os_sa != NULL)
2956 dsl_dataset_long_rele(dmu_objset_ds(os), tag);
2957 dsl_dataset_rele(dmu_objset_ds(os), tag);
2958 sa_attr_table = NULL;
2963 fuid_table_destroy(void)
2965 if (fuid_table_loaded) {
2966 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
2967 fuid_table_loaded = B_FALSE;
2972 * print uid or gid information.
2973 * For normal POSIX id just the id is printed in decimal format.
2974 * For CIFS files with FUID the fuid is printed in hex followed by
2975 * the domain-rid string.
2978 print_idstr(uint64_t id, const char *id_type)
2980 if (FUID_INDEX(id)) {
2983 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
2984 (void) printf("\t%s %llx [%s-%d]\n", id_type,
2985 (u_longlong_t)id, domain, (int)FUID_RID(id));
2987 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
2993 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
2995 uint32_t uid_idx, gid_idx;
2997 uid_idx = FUID_INDEX(uid);
2998 gid_idx = FUID_INDEX(gid);
3000 /* Load domain table, if not already loaded */
3001 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
3004 /* first find the fuid object. It lives in the master node */
3005 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
3006 8, 1, &fuid_obj) == 0);
3007 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
3008 (void) zfs_fuid_table_load(os, fuid_obj,
3009 &idx_tree, &domain_tree);
3010 fuid_table_loaded = B_TRUE;
3013 print_idstr(uid, "uid");
3014 print_idstr(gid, "gid");
3018 dump_znode_sa_xattr(sa_handle_t *hdl)
3021 nvpair_t *elem = NULL;
3022 int sa_xattr_size = 0;
3023 int sa_xattr_entries = 0;
3025 char *sa_xattr_packed;
3027 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size);
3028 if (error || sa_xattr_size == 0)
3031 sa_xattr_packed = malloc(sa_xattr_size);
3032 if (sa_xattr_packed == NULL)
3035 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR],
3036 sa_xattr_packed, sa_xattr_size);
3038 free(sa_xattr_packed);
3042 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0);
3044 free(sa_xattr_packed);
3048 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL)
3051 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n",
3052 sa_xattr_size, sa_xattr_entries);
3053 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) {
3057 (void) printf("\t\t%s = ", nvpair_name(elem));
3058 nvpair_value_byte_array(elem, &value, &cnt);
3059 for (idx = 0; idx < cnt; ++idx) {
3060 if (isprint(value[idx]))
3061 (void) putchar(value[idx]);
3063 (void) printf("\\%3.3o", value[idx]);
3065 (void) putchar('\n');
3068 nvlist_free(sa_xattr);
3069 free(sa_xattr_packed);
3073 dump_znode_symlink(sa_handle_t *hdl)
3075 int sa_symlink_size = 0;
3076 char linktarget[MAXPATHLEN];
3077 linktarget[0] = '\0';
3080 error = sa_size(hdl, sa_attr_table[ZPL_SYMLINK], &sa_symlink_size);
3081 if (error || sa_symlink_size == 0) {
3084 if (sa_lookup(hdl, sa_attr_table[ZPL_SYMLINK],
3085 &linktarget, sa_symlink_size) == 0)
3086 (void) printf("\ttarget %s\n", linktarget);
3091 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
3093 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
3095 uint64_t xattr, rdev, gen;
3096 uint64_t uid, gid, mode, fsize, parent, links;
3098 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
3099 time_t z_crtime, z_atime, z_mtime, z_ctime;
3100 sa_bulk_attr_t bulk[12];
3104 VERIFY3P(os, ==, sa_os);
3105 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
3106 (void) printf("Failed to get handle for SA znode\n");
3110 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
3111 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
3112 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
3114 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
3115 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
3117 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
3119 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
3121 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
3123 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
3125 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
3127 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
3129 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
3132 if (sa_bulk_lookup(hdl, bulk, idx)) {
3133 (void) sa_handle_destroy(hdl);
3137 z_crtime = (time_t)crtm[0];
3138 z_atime = (time_t)acctm[0];
3139 z_mtime = (time_t)modtm[0];
3140 z_ctime = (time_t)chgtm[0];
3142 if (dump_opt['d'] > 4) {
3143 error = zfs_obj_to_path(os, object, path, sizeof (path));
3144 if (error == ESTALE) {
3145 (void) snprintf(path, sizeof (path), "on delete queue");
3146 } else if (error != 0) {
3148 (void) snprintf(path, sizeof (path),
3149 "path not found, possibly leaked");
3151 (void) printf("\tpath %s\n", path);
3155 dump_znode_symlink(hdl);
3156 dump_uidgid(os, uid, gid);
3157 (void) printf("\tatime %s", ctime(&z_atime));
3158 (void) printf("\tmtime %s", ctime(&z_mtime));
3159 (void) printf("\tctime %s", ctime(&z_ctime));
3160 (void) printf("\tcrtime %s", ctime(&z_crtime));
3161 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
3162 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
3163 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
3164 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
3165 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
3166 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
3167 if (dmu_objset_projectquota_enabled(os) && (pflags & ZFS_PROJID)) {
3170 if (sa_lookup(hdl, sa_attr_table[ZPL_PROJID], &projid,
3171 sizeof (uint64_t)) == 0)
3172 (void) printf("\tprojid %llu\n", (u_longlong_t)projid);
3174 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
3175 sizeof (uint64_t)) == 0)
3176 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
3177 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
3178 sizeof (uint64_t)) == 0)
3179 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
3180 dump_znode_sa_xattr(hdl);
3181 sa_handle_destroy(hdl);
3186 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
3192 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
3196 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
3197 dump_none, /* unallocated */
3198 dump_zap, /* object directory */
3199 dump_uint64, /* object array */
3200 dump_none, /* packed nvlist */
3201 dump_packed_nvlist, /* packed nvlist size */
3202 dump_none, /* bpobj */
3203 dump_bpobj, /* bpobj header */
3204 dump_none, /* SPA space map header */
3205 dump_none, /* SPA space map */
3206 dump_none, /* ZIL intent log */
3207 dump_dnode, /* DMU dnode */
3208 dump_dmu_objset, /* DMU objset */
3209 dump_dsl_dir, /* DSL directory */
3210 dump_zap, /* DSL directory child map */
3211 dump_zap, /* DSL dataset snap map */
3212 dump_zap, /* DSL props */
3213 dump_dsl_dataset, /* DSL dataset */
3214 dump_znode, /* ZFS znode */
3215 dump_acl, /* ZFS V0 ACL */
3216 dump_uint8, /* ZFS plain file */
3217 dump_zpldir, /* ZFS directory */
3218 dump_zap, /* ZFS master node */
3219 dump_zap, /* ZFS delete queue */
3220 dump_uint8, /* zvol object */
3221 dump_zap, /* zvol prop */
3222 dump_uint8, /* other uint8[] */
3223 dump_uint64, /* other uint64[] */
3224 dump_zap, /* other ZAP */
3225 dump_zap, /* persistent error log */
3226 dump_uint8, /* SPA history */
3227 dump_history_offsets, /* SPA history offsets */
3228 dump_zap, /* Pool properties */
3229 dump_zap, /* DSL permissions */
3230 dump_acl, /* ZFS ACL */
3231 dump_uint8, /* ZFS SYSACL */
3232 dump_none, /* FUID nvlist */
3233 dump_packed_nvlist, /* FUID nvlist size */
3234 dump_zap, /* DSL dataset next clones */
3235 dump_zap, /* DSL scrub queue */
3236 dump_zap, /* ZFS user/group/project used */
3237 dump_zap, /* ZFS user/group/project quota */
3238 dump_zap, /* snapshot refcount tags */
3239 dump_ddt_zap, /* DDT ZAP object */
3240 dump_zap, /* DDT statistics */
3241 dump_znode, /* SA object */
3242 dump_zap, /* SA Master Node */
3243 dump_sa_attrs, /* SA attribute registration */
3244 dump_sa_layouts, /* SA attribute layouts */
3245 dump_zap, /* DSL scrub translations */
3246 dump_none, /* fake dedup BP */
3247 dump_zap, /* deadlist */
3248 dump_none, /* deadlist hdr */
3249 dump_zap, /* dsl clones */
3250 dump_bpobj_subobjs, /* bpobj subobjs */
3251 dump_unknown, /* Unknown type, must be last */
3255 match_object_type(dmu_object_type_t obj_type, uint64_t flags)
3257 boolean_t match = B_TRUE;
3260 case DMU_OT_DIRECTORY_CONTENTS:
3261 if (!(flags & ZOR_FLAG_DIRECTORY))
3264 case DMU_OT_PLAIN_FILE_CONTENTS:
3265 if (!(flags & ZOR_FLAG_PLAIN_FILE))
3268 case DMU_OT_SPACE_MAP:
3269 if (!(flags & ZOR_FLAG_SPACE_MAP))
3273 if (strcmp(zdb_ot_name(obj_type), "zap") == 0) {
3274 if (!(flags & ZOR_FLAG_ZAP))
3280 * If all bits except some of the supported flags are
3281 * set, the user combined the all-types flag (A) with
3282 * a negated flag to exclude some types (e.g. A-f to
3283 * show all object types except plain files).
3285 if ((flags | ZOR_SUPPORTED_FLAGS) != ZOR_FLAG_ALL_TYPES)
3295 dump_object(objset_t *os, uint64_t object, int verbosity,
3296 boolean_t *print_header, uint64_t *dnode_slots_used, uint64_t flags)
3298 dmu_buf_t *db = NULL;
3299 dmu_object_info_t doi;
3301 boolean_t dnode_held = B_FALSE;
3304 char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32];
3305 char bonus_size[32];
3309 /* make sure nicenum has enough space */
3310 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
3311 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
3312 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
3313 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
3314 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
3316 if (*print_header) {
3317 (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n",
3318 "Object", "lvl", "iblk", "dblk", "dsize", "dnsize",
3319 "lsize", "%full", "type");
3324 dn = DMU_META_DNODE(os);
3325 dmu_object_info_from_dnode(dn, &doi);
3328 * Encrypted datasets will have sensitive bonus buffers
3329 * encrypted. Therefore we cannot hold the bonus buffer and
3330 * must hold the dnode itself instead.
3332 error = dmu_object_info(os, object, &doi);
3334 fatal("dmu_object_info() failed, errno %u", error);
3336 if (os->os_encrypted &&
3337 DMU_OT_IS_ENCRYPTED(doi.doi_bonus_type)) {
3338 error = dnode_hold(os, object, FTAG, &dn);
3340 fatal("dnode_hold() failed, errno %u", error);
3341 dnode_held = B_TRUE;
3343 error = dmu_bonus_hold(os, object, FTAG, &db);
3345 fatal("dmu_bonus_hold(%llu) failed, errno %u",
3347 bonus = db->db_data;
3348 bsize = db->db_size;
3349 dn = DB_DNODE((dmu_buf_impl_t *)db);
3354 * Default to showing all object types if no flags were specified.
3356 if (flags != 0 && flags != ZOR_FLAG_ALL_TYPES &&
3357 !match_object_type(doi.doi_type, flags))
3360 if (dnode_slots_used)
3361 *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE;
3363 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
3364 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
3365 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
3366 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
3367 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
3368 zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize));
3369 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
3370 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
3371 doi.doi_max_offset);
3375 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
3376 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux),
3377 " (K=%s)", ZDB_CHECKSUM_NAME(doi.doi_checksum));
3380 if (doi.doi_compress == ZIO_COMPRESS_INHERIT &&
3381 ZIO_COMPRESS_HASLEVEL(os->os_compress) && verbosity >= 6) {
3382 const char *compname = NULL;
3383 if (zfs_prop_index_to_string(ZFS_PROP_COMPRESSION,
3384 ZIO_COMPRESS_RAW(os->os_compress, os->os_complevel),
3386 (void) snprintf(aux + strlen(aux),
3387 sizeof (aux) - strlen(aux), " (Z=inherit=%s)",
3390 (void) snprintf(aux + strlen(aux),
3391 sizeof (aux) - strlen(aux),
3392 " (Z=inherit=%s-unknown)",
3393 ZDB_COMPRESS_NAME(os->os_compress));
3395 } else if (doi.doi_compress == ZIO_COMPRESS_INHERIT && verbosity >= 6) {
3396 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux),
3397 " (Z=inherit=%s)", ZDB_COMPRESS_NAME(os->os_compress));
3398 } else if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
3399 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux),
3400 " (Z=%s)", ZDB_COMPRESS_NAME(doi.doi_compress));
3403 (void) printf("%10lld %3u %5s %5s %5s %6s %5s %6s %s%s\n",
3404 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
3405 asize, dnsize, lsize, fill, zdb_ot_name(doi.doi_type), aux);
3407 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
3408 (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n",
3409 "", "", "", "", "", "", bonus_size, "bonus",
3410 zdb_ot_name(doi.doi_bonus_type));
3413 if (verbosity >= 4) {
3414 (void) printf("\tdnode flags: %s%s%s%s\n",
3415 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
3417 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
3418 "USERUSED_ACCOUNTED " : "",
3419 (dn->dn_phys->dn_flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) ?
3420 "USEROBJUSED_ACCOUNTED " : "",
3421 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
3422 "SPILL_BLKPTR" : "");
3423 (void) printf("\tdnode maxblkid: %llu\n",
3424 (longlong_t)dn->dn_phys->dn_maxblkid);
3427 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os,
3428 object, bonus, bsize);
3430 (void) printf("\t\t(bonus encrypted)\n");
3433 if (!os->os_encrypted || !DMU_OT_IS_ENCRYPTED(doi.doi_type)) {
3434 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object,
3437 (void) printf("\t\t(object encrypted)\n");
3440 *print_header = B_TRUE;
3446 if (verbosity >= 5) {
3448 * Report the list of segments that comprise the object.
3452 uint64_t blkfill = 1;
3455 if (dn->dn_type == DMU_OT_DNODE) {
3457 blkfill = DNODES_PER_BLOCK;
3462 /* make sure nicenum has enough space */
3463 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
3464 error = dnode_next_offset(dn,
3465 0, &start, minlvl, blkfill, 0);
3469 error = dnode_next_offset(dn,
3470 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
3471 zdb_nicenum(end - start, segsize, sizeof (segsize));
3472 (void) printf("\t\tsegment [%016llx, %016llx)"
3473 " size %5s\n", (u_longlong_t)start,
3474 (u_longlong_t)end, segsize);
3483 dmu_buf_rele(db, FTAG);
3485 dnode_rele(dn, FTAG);
3489 count_dir_mos_objects(dsl_dir_t *dd)
3491 mos_obj_refd(dd->dd_object);
3492 mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj);
3493 mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj);
3494 mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj);
3495 mos_obj_refd(dsl_dir_phys(dd)->dd_clones);
3498 * The dd_crypto_obj can be referenced by multiple dsl_dir's.
3499 * Ignore the references after the first one.
3501 mos_obj_refd_multiple(dd->dd_crypto_obj);
3505 count_ds_mos_objects(dsl_dataset_t *ds)
3507 mos_obj_refd(ds->ds_object);
3508 mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj);
3509 mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj);
3510 mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj);
3511 mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj);
3512 mos_obj_refd(ds->ds_bookmarks_obj);
3514 if (!dsl_dataset_is_snapshot(ds)) {
3515 count_dir_mos_objects(ds->ds_dir);
3519 static const char *objset_types[DMU_OST_NUMTYPES] = {
3520 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
3523 * Parse a string denoting a range of object IDs of the form
3524 * <start>[:<end>[:flags]], and store the results in zor.
3525 * Return 0 on success. On error, return 1 and update the msg
3526 * pointer to point to a descriptive error message.
3529 parse_object_range(char *range, zopt_object_range_t *zor, char **msg)
3532 char *p, *s, *dup, *flagstr;
3537 if (strchr(range, ':') == NULL) {
3538 zor->zor_obj_start = strtoull(range, &p, 0);
3540 *msg = "Invalid characters in object ID";
3543 zor->zor_obj_end = zor->zor_obj_start;
3547 if (strchr(range, ':') == range) {
3548 *msg = "Invalid leading colon";
3553 len = strlen(range);
3554 if (range[len - 1] == ':') {
3555 *msg = "Invalid trailing colon";
3560 dup = strdup(range);
3561 s = strtok(dup, ":");
3562 zor->zor_obj_start = strtoull(s, &p, 0);
3565 *msg = "Invalid characters in start object ID";
3570 s = strtok(NULL, ":");
3571 zor->zor_obj_end = strtoull(s, &p, 0);
3574 *msg = "Invalid characters in end object ID";
3579 if (zor->zor_obj_start > zor->zor_obj_end) {
3580 *msg = "Start object ID may not exceed end object ID";
3585 s = strtok(NULL, ":");
3587 zor->zor_flags = ZOR_FLAG_ALL_TYPES;
3589 } else if (strtok(NULL, ":") != NULL) {
3590 *msg = "Invalid colon-delimited field after flags";
3596 for (i = 0; flagstr[i]; i++) {
3598 boolean_t negation = (flagstr[i] == '-');
3602 if (flagstr[i] == '\0') {
3603 *msg = "Invalid trailing negation operator";
3608 bit = flagbits[(uchar_t)flagstr[i]];
3610 *msg = "Invalid flag";
3619 zor->zor_flags = flags;
3627 dump_objset(objset_t *os)
3629 dmu_objset_stats_t dds = { 0 };
3630 uint64_t object, object_count;
3631 uint64_t refdbytes, usedobjs, scratch;
3633 char blkbuf[BP_SPRINTF_LEN + 20];
3634 char osname[ZFS_MAX_DATASET_NAME_LEN];
3635 const char *type = "UNKNOWN";
3636 int verbosity = dump_opt['d'];
3637 boolean_t print_header;
3640 uint64_t total_slots_used = 0;
3641 uint64_t max_slot_used = 0;
3642 uint64_t dnode_slots;
3647 /* make sure nicenum has enough space */
3648 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
3650 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
3651 dmu_objset_fast_stat(os, &dds);
3652 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
3654 print_header = B_TRUE;
3656 if (dds.dds_type < DMU_OST_NUMTYPES)
3657 type = objset_types[dds.dds_type];
3659 if (dds.dds_type == DMU_OST_META) {
3660 dds.dds_creation_txg = TXG_INITIAL;
3661 usedobjs = BP_GET_FILL(os->os_rootbp);
3662 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
3665 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
3668 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
3670 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
3672 if (verbosity >= 4) {
3673 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
3674 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
3675 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
3680 dmu_objset_name(os, osname);
3682 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
3683 "%s, %llu objects%s%s\n",
3684 osname, type, (u_longlong_t)dmu_objset_id(os),
3685 (u_longlong_t)dds.dds_creation_txg,
3686 numbuf, (u_longlong_t)usedobjs, blkbuf,
3687 (dds.dds_inconsistent) ? " (inconsistent)" : "");
3689 for (i = 0; i < zopt_object_args; i++) {
3690 obj_start = zopt_object_ranges[i].zor_obj_start;
3691 obj_end = zopt_object_ranges[i].zor_obj_end;
3692 flags = zopt_object_ranges[i].zor_flags;
3695 if (object == 0 || obj_start == obj_end)
3696 dump_object(os, object, verbosity, &print_header, NULL,
3701 while ((dmu_object_next(os, &object, B_FALSE, 0) == 0) &&
3702 object <= obj_end) {
3703 dump_object(os, object, verbosity, &print_header, NULL,
3708 if (zopt_object_args > 0) {
3709 (void) printf("\n");
3713 if (dump_opt['i'] != 0 || verbosity >= 2)
3714 dump_intent_log(dmu_objset_zil(os));
3716 if (dmu_objset_ds(os) != NULL) {
3717 dsl_dataset_t *ds = dmu_objset_ds(os);
3718 dump_blkptr_list(&ds->ds_deadlist, "Deadlist");
3719 if (dsl_deadlist_is_open(&ds->ds_dir->dd_livelist) &&
3720 !dmu_objset_is_snapshot(os)) {
3721 dump_blkptr_list(&ds->ds_dir->dd_livelist, "Livelist");
3722 if (verify_dd_livelist(os) != 0)
3723 fatal("livelist is incorrect");
3726 if (dsl_dataset_remap_deadlist_exists(ds)) {
3727 (void) printf("ds_remap_deadlist:\n");
3728 dump_blkptr_list(&ds->ds_remap_deadlist, "Deadlist");
3730 count_ds_mos_objects(ds);
3733 if (dmu_objset_ds(os) != NULL)
3734 dump_bookmarks(os, verbosity);
3739 if (BP_IS_HOLE(os->os_rootbp))
3742 dump_object(os, 0, verbosity, &print_header, NULL, 0);
3744 if (DMU_USERUSED_DNODE(os) != NULL &&
3745 DMU_USERUSED_DNODE(os)->dn_type != 0) {
3746 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header,
3748 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header,
3752 if (DMU_PROJECTUSED_DNODE(os) != NULL &&
3753 DMU_PROJECTUSED_DNODE(os)->dn_type != 0)
3754 dump_object(os, DMU_PROJECTUSED_OBJECT, verbosity,
3755 &print_header, NULL, 0);
3758 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
3759 dump_object(os, object, verbosity, &print_header, &dnode_slots,
3762 total_slots_used += dnode_slots;
3763 max_slot_used = object + dnode_slots - 1;
3766 (void) printf("\n");
3768 (void) printf(" Dnode slots:\n");
3769 (void) printf("\tTotal used: %10llu\n",
3770 (u_longlong_t)total_slots_used);
3771 (void) printf("\tMax used: %10llu\n",
3772 (u_longlong_t)max_slot_used);
3773 (void) printf("\tPercent empty: %10lf\n",
3774 (double)(max_slot_used - total_slots_used)*100 /
3775 (double)max_slot_used);
3776 (void) printf("\n");
3778 if (error != ESRCH) {
3779 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
3783 ASSERT3U(object_count, ==, usedobjs);
3785 if (leaked_objects != 0) {
3786 (void) printf("%d potentially leaked objects detected\n",
3793 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
3795 time_t timestamp = ub->ub_timestamp;
3797 (void) printf("%s", header ? header : "");
3798 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
3799 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
3800 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
3801 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
3802 (void) printf("\ttimestamp = %llu UTC = %s",
3803 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
3805 (void) printf("\tmmp_magic = %016llx\n",
3806 (u_longlong_t)ub->ub_mmp_magic);
3807 if (MMP_VALID(ub)) {
3808 (void) printf("\tmmp_delay = %0llu\n",
3809 (u_longlong_t)ub->ub_mmp_delay);
3810 if (MMP_SEQ_VALID(ub))
3811 (void) printf("\tmmp_seq = %u\n",
3812 (unsigned int) MMP_SEQ(ub));
3813 if (MMP_FAIL_INT_VALID(ub))
3814 (void) printf("\tmmp_fail = %u\n",
3815 (unsigned int) MMP_FAIL_INT(ub));
3816 if (MMP_INTERVAL_VALID(ub))
3817 (void) printf("\tmmp_write = %u\n",
3818 (unsigned int) MMP_INTERVAL(ub));
3819 /* After MMP_* to make summarize_uberblock_mmp cleaner */
3820 (void) printf("\tmmp_valid = %x\n",
3821 (unsigned int) ub->ub_mmp_config & 0xFF);
3824 if (dump_opt['u'] >= 4) {
3825 char blkbuf[BP_SPRINTF_LEN];
3826 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
3827 (void) printf("\trootbp = %s\n", blkbuf);
3829 (void) printf("\tcheckpoint_txg = %llu\n",
3830 (u_longlong_t)ub->ub_checkpoint_txg);
3831 (void) printf("%s", footer ? footer : "");
3835 dump_config(spa_t *spa)
3842 error = dmu_bonus_hold(spa->spa_meta_objset,
3843 spa->spa_config_object, FTAG, &db);
3846 nvsize = *(uint64_t *)db->db_data;
3847 dmu_buf_rele(db, FTAG);
3849 (void) printf("\nMOS Configuration:\n");
3850 dump_packed_nvlist(spa->spa_meta_objset,
3851 spa->spa_config_object, (void *)&nvsize, 1);
3853 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
3854 (u_longlong_t)spa->spa_config_object, error);
3859 dump_cachefile(const char *cachefile)
3862 struct stat64 statbuf;
3866 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
3867 (void) printf("cannot open '%s': %s\n", cachefile,
3872 if (fstat64(fd, &statbuf) != 0) {
3873 (void) printf("failed to stat '%s': %s\n", cachefile,
3878 if ((buf = malloc(statbuf.st_size)) == NULL) {
3879 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
3880 (u_longlong_t)statbuf.st_size);
3884 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
3885 (void) fprintf(stderr, "failed to read %llu bytes\n",
3886 (u_longlong_t)statbuf.st_size);
3892 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
3893 (void) fprintf(stderr, "failed to unpack nvlist\n");
3899 dump_nvlist(config, 0);
3901 nvlist_free(config);
3905 * ZFS label nvlist stats
3907 typedef struct zdb_nvl_stats {
3910 size_t zns_leaf_largest;
3911 size_t zns_leaf_total;
3912 nvlist_t *zns_string;
3913 nvlist_t *zns_uint64;
3914 nvlist_t *zns_boolean;
3918 collect_nvlist_stats(nvlist_t *nvl, zdb_nvl_stats_t *stats)
3920 nvlist_t *list, **array;
3921 nvpair_t *nvp = NULL;
3925 stats->zns_list_count++;
3927 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
3928 name = nvpair_name(nvp);
3930 switch (nvpair_type(nvp)) {
3931 case DATA_TYPE_STRING:
3932 fnvlist_add_string(stats->zns_string, name,
3933 fnvpair_value_string(nvp));
3935 case DATA_TYPE_UINT64:
3936 fnvlist_add_uint64(stats->zns_uint64, name,
3937 fnvpair_value_uint64(nvp));
3939 case DATA_TYPE_BOOLEAN:
3940 fnvlist_add_boolean(stats->zns_boolean, name);
3942 case DATA_TYPE_NVLIST:
3943 if (nvpair_value_nvlist(nvp, &list) == 0)
3944 collect_nvlist_stats(list, stats);
3946 case DATA_TYPE_NVLIST_ARRAY:
3947 if (nvpair_value_nvlist_array(nvp, &array, &items) != 0)
3950 for (i = 0; i < items; i++) {
3951 collect_nvlist_stats(array[i], stats);
3953 /* collect stats on leaf vdev */
3954 if (strcmp(name, "children") == 0) {
3957 (void) nvlist_size(array[i], &size,
3959 stats->zns_leaf_total += size;
3960 if (size > stats->zns_leaf_largest)
3961 stats->zns_leaf_largest = size;
3962 stats->zns_leaf_count++;
3967 (void) printf("skip type %d!\n", (int)nvpair_type(nvp));
3973 dump_nvlist_stats(nvlist_t *nvl, size_t cap)
3975 zdb_nvl_stats_t stats = { 0 };
3976 size_t size, sum = 0, total;
3979 /* requires nvlist with non-unique names for stat collection */
3980 VERIFY0(nvlist_alloc(&stats.zns_string, 0, 0));
3981 VERIFY0(nvlist_alloc(&stats.zns_uint64, 0, 0));
3982 VERIFY0(nvlist_alloc(&stats.zns_boolean, 0, 0));
3983 VERIFY0(nvlist_size(stats.zns_boolean, &noise, NV_ENCODE_XDR));
3985 (void) printf("\n\nZFS Label NVList Config Stats:\n");
3987 VERIFY0(nvlist_size(nvl, &total, NV_ENCODE_XDR));
3988 (void) printf(" %d bytes used, %d bytes free (using %4.1f%%)\n\n",
3989 (int)total, (int)(cap - total), 100.0 * total / cap);
3991 collect_nvlist_stats(nvl, &stats);
3993 VERIFY0(nvlist_size(stats.zns_uint64, &size, NV_ENCODE_XDR));
3996 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "integers:",
3997 (int)fnvlist_num_pairs(stats.zns_uint64),
3998 (int)size, 100.0 * size / total);
4000 VERIFY0(nvlist_size(stats.zns_string, &size, NV_ENCODE_XDR));
4003 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "strings:",
4004 (int)fnvlist_num_pairs(stats.zns_string),
4005 (int)size, 100.0 * size / total);
4007 VERIFY0(nvlist_size(stats.zns_boolean, &size, NV_ENCODE_XDR));
4010 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "booleans:",
4011 (int)fnvlist_num_pairs(stats.zns_boolean),
4012 (int)size, 100.0 * size / total);
4014 size = total - sum; /* treat remainder as nvlist overhead */
4015 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n\n", "nvlists:",
4016 stats.zns_list_count, (int)size, 100.0 * size / total);
4018 if (stats.zns_leaf_count > 0) {
4019 size_t average = stats.zns_leaf_total / stats.zns_leaf_count;
4021 (void) printf("%12s %4d %6d bytes average\n", "leaf vdevs:",
4022 stats.zns_leaf_count, (int)average);
4023 (void) printf("%24d bytes largest\n",
4024 (int)stats.zns_leaf_largest);
4026 if (dump_opt['l'] >= 3 && average > 0)
4027 (void) printf(" space for %d additional leaf vdevs\n",
4028 (int)((cap - total) / average));
4030 (void) printf("\n");
4032 nvlist_free(stats.zns_string);
4033 nvlist_free(stats.zns_uint64);
4034 nvlist_free(stats.zns_boolean);
4037 typedef struct cksum_record {
4039 boolean_t labels[VDEV_LABELS];
4044 cksum_record_compare(const void *x1, const void *x2)
4046 const cksum_record_t *l = (cksum_record_t *)x1;
4047 const cksum_record_t *r = (cksum_record_t *)x2;
4048 int arraysize = ARRAY_SIZE(l->cksum.zc_word);
4051 for (int i = 0; i < arraysize; i++) {
4052 difference = TREE_CMP(l->cksum.zc_word[i], r->cksum.zc_word[i]);
4057 return (difference);
4060 static cksum_record_t *
4061 cksum_record_alloc(zio_cksum_t *cksum, int l)
4063 cksum_record_t *rec;
4065 rec = umem_zalloc(sizeof (*rec), UMEM_NOFAIL);
4066 rec->cksum = *cksum;
4067 rec->labels[l] = B_TRUE;
4072 static cksum_record_t *
4073 cksum_record_lookup(avl_tree_t *tree, zio_cksum_t *cksum)
4075 cksum_record_t lookup = { .cksum = *cksum };
4078 return (avl_find(tree, &lookup, &where));
4081 static cksum_record_t *
4082 cksum_record_insert(avl_tree_t *tree, zio_cksum_t *cksum, int l)
4084 cksum_record_t *rec;
4086 rec = cksum_record_lookup(tree, cksum);
4088 rec->labels[l] = B_TRUE;
4090 rec = cksum_record_alloc(cksum, l);
4098 first_label(cksum_record_t *rec)
4100 for (int i = 0; i < VDEV_LABELS; i++)
4108 print_label_numbers(char *prefix, cksum_record_t *rec)
4110 printf("%s", prefix);
4111 for (int i = 0; i < VDEV_LABELS; i++)
4112 if (rec->labels[i] == B_TRUE)
4117 #define MAX_UBERBLOCK_COUNT (VDEV_UBERBLOCK_RING >> UBERBLOCK_SHIFT)
4119 typedef struct zdb_label {
4121 nvlist_t *config_nv;
4122 cksum_record_t *config;
4123 cksum_record_t *uberblocks[MAX_UBERBLOCK_COUNT];
4124 boolean_t header_printed;
4125 boolean_t read_failed;
4129 print_label_header(zdb_label_t *label, int l)
4135 if (label->header_printed == B_TRUE)
4138 (void) printf("------------------------------------\n");
4139 (void) printf("LABEL %d\n", l);
4140 (void) printf("------------------------------------\n");
4142 label->header_printed = B_TRUE;
4146 print_l2arc_header(void)
4148 (void) printf("------------------------------------\n");
4149 (void) printf("L2ARC device header\n");
4150 (void) printf("------------------------------------\n");
4154 print_l2arc_log_blocks(void)
4156 (void) printf("------------------------------------\n");
4157 (void) printf("L2ARC device log blocks\n");
4158 (void) printf("------------------------------------\n");
4162 dump_l2arc_log_entries(uint64_t log_entries,
4163 l2arc_log_ent_phys_t *le, uint64_t i)
4165 for (int j = 0; j < log_entries; j++) {
4166 dva_t dva = le[j].le_dva;
4167 (void) printf("lb[%4llu]\tle[%4d]\tDVA asize: %llu, "
4168 "vdev: %llu, offset: %llu\n",
4169 (u_longlong_t)i, j + 1,
4170 (u_longlong_t)DVA_GET_ASIZE(&dva),
4171 (u_longlong_t)DVA_GET_VDEV(&dva),
4172 (u_longlong_t)DVA_GET_OFFSET(&dva));
4173 (void) printf("|\t\t\t\tbirth: %llu\n",
4174 (u_longlong_t)le[j].le_birth);
4175 (void) printf("|\t\t\t\tlsize: %llu\n",
4176 (u_longlong_t)L2BLK_GET_LSIZE((&le[j])->le_prop));
4177 (void) printf("|\t\t\t\tpsize: %llu\n",
4178 (u_longlong_t)L2BLK_GET_PSIZE((&le[j])->le_prop));
4179 (void) printf("|\t\t\t\tcompr: %llu\n",
4180 (u_longlong_t)L2BLK_GET_COMPRESS((&le[j])->le_prop));
4181 (void) printf("|\t\t\t\tcomplevel: %llu\n",
4182 (u_longlong_t)(&le[j])->le_complevel);
4183 (void) printf("|\t\t\t\ttype: %llu\n",
4184 (u_longlong_t)L2BLK_GET_TYPE((&le[j])->le_prop));
4185 (void) printf("|\t\t\t\tprotected: %llu\n",
4186 (u_longlong_t)L2BLK_GET_PROTECTED((&le[j])->le_prop));
4187 (void) printf("|\t\t\t\tprefetch: %llu\n",
4188 (u_longlong_t)L2BLK_GET_PREFETCH((&le[j])->le_prop));
4189 (void) printf("|\t\t\t\taddress: %llu\n",
4190 (u_longlong_t)le[j].le_daddr);
4191 (void) printf("|\n");
4193 (void) printf("\n");
4197 dump_l2arc_log_blkptr(l2arc_log_blkptr_t lbps)
4199 (void) printf("|\t\tdaddr: %llu\n", (u_longlong_t)lbps.lbp_daddr);
4200 (void) printf("|\t\tpayload_asize: %llu\n",
4201 (u_longlong_t)lbps.lbp_payload_asize);
4202 (void) printf("|\t\tpayload_start: %llu\n",
4203 (u_longlong_t)lbps.lbp_payload_start);
4204 (void) printf("|\t\tlsize: %llu\n",
4205 (u_longlong_t)L2BLK_GET_LSIZE((&lbps)->lbp_prop));
4206 (void) printf("|\t\tasize: %llu\n",
4207 (u_longlong_t)L2BLK_GET_PSIZE((&lbps)->lbp_prop));
4208 (void) printf("|\t\tcompralgo: %llu\n",
4209 (u_longlong_t)L2BLK_GET_COMPRESS((&lbps)->lbp_prop));
4210 (void) printf("|\t\tcksumalgo: %llu\n",
4211 (u_longlong_t)L2BLK_GET_CHECKSUM((&lbps)->lbp_prop));
4212 (void) printf("|\n\n");
4216 dump_l2arc_log_blocks(int fd, l2arc_dev_hdr_phys_t l2dhdr,
4217 l2arc_dev_hdr_phys_t *rebuild)
4219 l2arc_log_blk_phys_t this_lb;
4221 l2arc_log_blkptr_t lbps[2];
4228 print_l2arc_log_blocks();
4229 bcopy((&l2dhdr)->dh_start_lbps, lbps, sizeof (lbps));
4231 dev.l2ad_evict = l2dhdr.dh_evict;
4232 dev.l2ad_start = l2dhdr.dh_start;
4233 dev.l2ad_end = l2dhdr.dh_end;
4235 if (l2dhdr.dh_start_lbps[0].lbp_daddr == 0) {
4236 /* no log blocks to read */
4237 if (!dump_opt['q']) {
4238 (void) printf("No log blocks to read\n");
4239 (void) printf("\n");
4243 dev.l2ad_hand = lbps[0].lbp_daddr +
4244 L2BLK_GET_PSIZE((&lbps[0])->lbp_prop);
4247 dev.l2ad_first = !!(l2dhdr.dh_flags & L2ARC_DEV_HDR_EVICT_FIRST);
4250 if (!l2arc_log_blkptr_valid(&dev, &lbps[0]))
4253 /* L2BLK_GET_PSIZE returns aligned size for log blocks */
4254 asize = L2BLK_GET_PSIZE((&lbps[0])->lbp_prop);
4255 if (pread64(fd, &this_lb, asize, lbps[0].lbp_daddr) != asize) {
4256 if (!dump_opt['q']) {
4257 (void) printf("Error while reading next log "
4263 fletcher_4_native_varsize(&this_lb, asize, &cksum);
4264 if (!ZIO_CHECKSUM_EQUAL(cksum, lbps[0].lbp_cksum)) {
4266 if (!dump_opt['q']) {
4267 (void) printf("Invalid cksum\n");
4268 dump_l2arc_log_blkptr(lbps[0]);
4273 switch (L2BLK_GET_COMPRESS((&lbps[0])->lbp_prop)) {
4274 case ZIO_COMPRESS_OFF:
4277 abd = abd_alloc_for_io(asize, B_TRUE);
4278 abd_copy_from_buf_off(abd, &this_lb, 0, asize);
4279 zio_decompress_data(L2BLK_GET_COMPRESS(
4280 (&lbps[0])->lbp_prop), abd, &this_lb,
4281 asize, sizeof (this_lb), NULL);
4286 if (this_lb.lb_magic == BSWAP_64(L2ARC_LOG_BLK_MAGIC))
4287 byteswap_uint64_array(&this_lb, sizeof (this_lb));
4288 if (this_lb.lb_magic != L2ARC_LOG_BLK_MAGIC) {
4290 (void) printf("Invalid log block magic\n\n");
4294 rebuild->dh_lb_count++;
4295 rebuild->dh_lb_asize += asize;
4296 if (dump_opt['l'] > 1 && !dump_opt['q']) {
4297 (void) printf("lb[%4llu]\tmagic: %llu\n",
4298 (u_longlong_t)rebuild->dh_lb_count,
4299 (u_longlong_t)this_lb.lb_magic);
4300 dump_l2arc_log_blkptr(lbps[0]);
4303 if (dump_opt['l'] > 2 && !dump_opt['q'])
4304 dump_l2arc_log_entries(l2dhdr.dh_log_entries,
4306 rebuild->dh_lb_count);
4308 if (l2arc_range_check_overlap(lbps[1].lbp_payload_start,
4309 lbps[0].lbp_payload_start, dev.l2ad_evict) &&
4314 lbps[1] = this_lb.lb_prev_lbp;
4317 if (!dump_opt['q']) {
4318 (void) printf("log_blk_count:\t %llu with valid cksum\n",
4319 (u_longlong_t)rebuild->dh_lb_count);
4320 (void) printf("\t\t %d with invalid cksum\n", failed);
4321 (void) printf("log_blk_asize:\t %llu\n\n",
4322 (u_longlong_t)rebuild->dh_lb_asize);
4327 dump_l2arc_header(int fd)
4329 l2arc_dev_hdr_phys_t l2dhdr, rebuild;
4330 int error = B_FALSE;
4332 bzero(&l2dhdr, sizeof (l2dhdr));
4333 bzero(&rebuild, sizeof (rebuild));
4335 if (pread64(fd, &l2dhdr, sizeof (l2dhdr),
4336 VDEV_LABEL_START_SIZE) != sizeof (l2dhdr)) {
4339 if (l2dhdr.dh_magic == BSWAP_64(L2ARC_DEV_HDR_MAGIC))
4340 byteswap_uint64_array(&l2dhdr, sizeof (l2dhdr));
4342 if (l2dhdr.dh_magic != L2ARC_DEV_HDR_MAGIC)
4347 (void) printf("L2ARC device header not found\n\n");
4348 /* Do not return an error here for backward compatibility */
4350 } else if (!dump_opt['q']) {
4351 print_l2arc_header();
4353 (void) printf(" magic: %llu\n",
4354 (u_longlong_t)l2dhdr.dh_magic);
4355 (void) printf(" version: %llu\n",
4356 (u_longlong_t)l2dhdr.dh_version);
4357 (void) printf(" pool_guid: %llu\n",
4358 (u_longlong_t)l2dhdr.dh_spa_guid);
4359 (void) printf(" flags: %llu\n",
4360 (u_longlong_t)l2dhdr.dh_flags);
4361 (void) printf(" start_lbps[0]: %llu\n",
4363 l2dhdr.dh_start_lbps[0].lbp_daddr);
4364 (void) printf(" start_lbps[1]: %llu\n",
4366 l2dhdr.dh_start_lbps[1].lbp_daddr);
4367 (void) printf(" log_blk_ent: %llu\n",
4368 (u_longlong_t)l2dhdr.dh_log_entries);
4369 (void) printf(" start: %llu\n",
4370 (u_longlong_t)l2dhdr.dh_start);
4371 (void) printf(" end: %llu\n",
4372 (u_longlong_t)l2dhdr.dh_end);
4373 (void) printf(" evict: %llu\n",
4374 (u_longlong_t)l2dhdr.dh_evict);
4375 (void) printf(" lb_asize_refcount: %llu\n",
4376 (u_longlong_t)l2dhdr.dh_lb_asize);
4377 (void) printf(" lb_count_refcount: %llu\n",
4378 (u_longlong_t)l2dhdr.dh_lb_count);
4379 (void) printf(" trim_action_time: %llu\n",
4380 (u_longlong_t)l2dhdr.dh_trim_action_time);
4381 (void) printf(" trim_state: %llu\n\n",
4382 (u_longlong_t)l2dhdr.dh_trim_state);
4385 dump_l2arc_log_blocks(fd, l2dhdr, &rebuild);
4387 * The total aligned size of log blocks and the number of log blocks
4388 * reported in the header of the device may be less than what zdb
4389 * reports by dump_l2arc_log_blocks() which emulates l2arc_rebuild().
4390 * This happens because dump_l2arc_log_blocks() lacks the memory
4391 * pressure valve that l2arc_rebuild() has. Thus, if we are on a system
4392 * with low memory, l2arc_rebuild will exit prematurely and dh_lb_asize
4393 * and dh_lb_count will be lower to begin with than what exists on the
4394 * device. This is normal and zdb should not exit with an error. The
4395 * opposite case should never happen though, the values reported in the
4396 * header should never be higher than what dump_l2arc_log_blocks() and
4397 * l2arc_rebuild() report. If this happens there is a leak in the
4398 * accounting of log blocks.
4400 if (l2dhdr.dh_lb_asize > rebuild.dh_lb_asize ||
4401 l2dhdr.dh_lb_count > rebuild.dh_lb_count)
4408 dump_config_from_label(zdb_label_t *label, size_t buflen, int l)
4413 if ((dump_opt['l'] < 3) && (first_label(label->config) != l))
4416 print_label_header(label, l);
4417 dump_nvlist(label->config_nv, 4);
4418 print_label_numbers(" labels = ", label->config);
4420 if (dump_opt['l'] >= 2)
4421 dump_nvlist_stats(label->config_nv, buflen);
4424 #define ZDB_MAX_UB_HEADER_SIZE 32
4427 dump_label_uberblocks(zdb_label_t *label, uint64_t ashift, int label_num)
4431 char header[ZDB_MAX_UB_HEADER_SIZE];
4433 vd.vdev_ashift = ashift;
4436 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) {
4437 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i);
4438 uberblock_t *ub = (void *)((char *)&label->label + uoff);
4439 cksum_record_t *rec = label->uberblocks[i];
4442 if (dump_opt['u'] >= 2) {
4443 print_label_header(label, label_num);
4444 (void) printf(" Uberblock[%d] invalid\n", i);
4449 if ((dump_opt['u'] < 3) && (first_label(rec) != label_num))
4452 if ((dump_opt['u'] < 4) &&
4453 (ub->ub_mmp_magic == MMP_MAGIC) && ub->ub_mmp_delay &&
4454 (i >= VDEV_UBERBLOCK_COUNT(&vd) - MMP_BLOCKS_PER_LABEL))
4457 print_label_header(label, label_num);
4458 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
4459 " Uberblock[%d]\n", i);
4460 dump_uberblock(ub, header, "");
4461 print_label_numbers(" labels = ", rec);
4465 static char curpath[PATH_MAX];
4468 * Iterate through the path components, recursively passing
4469 * current one's obj and remaining path until we find the obj
4473 dump_path_impl(objset_t *os, uint64_t obj, char *name)
4476 boolean_t header = B_TRUE;
4480 dmu_object_info_t doi;
4482 if ((s = strchr(name, '/')) != NULL)
4484 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
4486 (void) strlcat(curpath, name, sizeof (curpath));
4489 (void) fprintf(stderr, "failed to lookup %s: %s\n",
4490 curpath, strerror(err));
4494 child_obj = ZFS_DIRENT_OBJ(child_obj);
4495 err = sa_buf_hold(os, child_obj, FTAG, &db);
4497 (void) fprintf(stderr,
4498 "failed to get SA dbuf for obj %llu: %s\n",
4499 (u_longlong_t)child_obj, strerror(err));
4502 dmu_object_info_from_db(db, &doi);
4503 sa_buf_rele(db, FTAG);
4505 if (doi.doi_bonus_type != DMU_OT_SA &&
4506 doi.doi_bonus_type != DMU_OT_ZNODE) {
4507 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
4508 doi.doi_bonus_type, (u_longlong_t)child_obj);
4512 if (dump_opt['v'] > 6) {
4513 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
4514 (u_longlong_t)child_obj, curpath, doi.doi_type,
4515 doi.doi_bonus_type);
4518 (void) strlcat(curpath, "/", sizeof (curpath));
4520 switch (doi.doi_type) {
4521 case DMU_OT_DIRECTORY_CONTENTS:
4522 if (s != NULL && *(s + 1) != '\0')
4523 return (dump_path_impl(os, child_obj, s + 1));
4525 case DMU_OT_PLAIN_FILE_CONTENTS:
4526 dump_object(os, child_obj, dump_opt['v'], &header, NULL, 0);
4529 (void) fprintf(stderr, "object %llu has non-file/directory "
4530 "type %d\n", (u_longlong_t)obj, doi.doi_type);
4538 * Dump the blocks for the object specified by path inside the dataset.
4541 dump_path(char *ds, char *path)
4547 err = open_objset(ds, FTAG, &os);
4551 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
4553 (void) fprintf(stderr, "can't lookup root znode: %s\n",
4555 close_objset(os, FTAG);
4559 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
4561 err = dump_path_impl(os, root_obj, path);
4563 close_objset(os, FTAG);
4568 dump_label(const char *dev)
4570 char path[MAXPATHLEN];
4571 zdb_label_t labels[VDEV_LABELS];
4572 uint64_t psize, ashift, l2cache;
4573 struct stat64 statbuf;
4574 boolean_t config_found = B_FALSE;
4575 boolean_t error = B_FALSE;
4576 boolean_t read_l2arc_header = B_FALSE;
4577 avl_tree_t config_tree;
4578 avl_tree_t uberblock_tree;
4579 void *node, *cookie;
4582 bzero(labels, sizeof (labels));
4585 * Check if we were given absolute path and use it as is.
4586 * Otherwise if the provided vdev name doesn't point to a file,
4587 * try prepending expected disk paths and partition numbers.
4589 (void) strlcpy(path, dev, sizeof (path));
4590 if (dev[0] != '/' && stat64(path, &statbuf) != 0) {
4593 error = zfs_resolve_shortname(dev, path, MAXPATHLEN);
4594 if (error == 0 && zfs_dev_is_whole_disk(path)) {
4595 if (zfs_append_partition(path, MAXPATHLEN) == -1)
4599 if (error || (stat64(path, &statbuf) != 0)) {
4600 (void) printf("failed to find device %s, try "
4601 "specifying absolute path instead\n", dev);
4606 if ((fd = open64(path, O_RDONLY)) < 0) {
4607 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
4611 if (fstat64_blk(fd, &statbuf) != 0) {
4612 (void) printf("failed to stat '%s': %s\n", path,
4618 if (S_ISBLK(statbuf.st_mode) && zfs_dev_flush(fd) != 0)
4619 (void) printf("failed to invalidate cache '%s' : %s\n", path,
4622 avl_create(&config_tree, cksum_record_compare,
4623 sizeof (cksum_record_t), offsetof(cksum_record_t, link));
4624 avl_create(&uberblock_tree, cksum_record_compare,
4625 sizeof (cksum_record_t), offsetof(cksum_record_t, link));
4627 psize = statbuf.st_size;
4628 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
4629 ashift = SPA_MINBLOCKSHIFT;
4632 * 1. Read the label from disk
4633 * 2. Unpack the configuration and insert in config tree.
4634 * 3. Traverse all uberblocks and insert in uberblock tree.
4636 for (int l = 0; l < VDEV_LABELS; l++) {
4637 zdb_label_t *label = &labels[l];
4638 char *buf = label->label.vl_vdev_phys.vp_nvlist;
4639 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist);
4641 cksum_record_t *rec;
4645 if (pread64(fd, &label->label, sizeof (label->label),
4646 vdev_label_offset(psize, l, 0)) != sizeof (label->label)) {
4648 (void) printf("failed to read label %d\n", l);
4649 label->read_failed = B_TRUE;
4654 label->read_failed = B_FALSE;
4656 if (nvlist_unpack(buf, buflen, &config, 0) == 0) {
4657 nvlist_t *vdev_tree = NULL;
4660 if ((nvlist_lookup_nvlist(config,
4661 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
4662 (nvlist_lookup_uint64(vdev_tree,
4663 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
4664 ashift = SPA_MINBLOCKSHIFT;
4666 if (nvlist_size(config, &size, NV_ENCODE_XDR) != 0)
4669 /* If the device is a cache device clear the header. */
4670 if (!read_l2arc_header) {
4671 if (nvlist_lookup_uint64(config,
4672 ZPOOL_CONFIG_POOL_STATE, &l2cache) == 0 &&
4673 l2cache == POOL_STATE_L2CACHE) {
4674 read_l2arc_header = B_TRUE;
4678 fletcher_4_native_varsize(buf, size, &cksum);
4679 rec = cksum_record_insert(&config_tree, &cksum, l);
4681 label->config = rec;
4682 label->config_nv = config;
4683 config_found = B_TRUE;
4688 vd.vdev_ashift = ashift;
4691 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) {
4692 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i);
4693 uberblock_t *ub = (void *)((char *)label + uoff);
4695 if (uberblock_verify(ub))
4698 fletcher_4_native_varsize(ub, sizeof (*ub), &cksum);
4699 rec = cksum_record_insert(&uberblock_tree, &cksum, l);
4701 label->uberblocks[i] = rec;
4706 * Dump the label and uberblocks.
4708 for (int l = 0; l < VDEV_LABELS; l++) {
4709 zdb_label_t *label = &labels[l];
4710 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist);
4712 if (label->read_failed == B_TRUE)
4715 if (label->config_nv) {
4716 dump_config_from_label(label, buflen, l);
4719 (void) printf("failed to unpack label %d\n", l);
4723 dump_label_uberblocks(label, ashift, l);
4725 nvlist_free(label->config_nv);
4729 * Dump the L2ARC header, if existent.
4731 if (read_l2arc_header)
4732 error |= dump_l2arc_header(fd);
4735 while ((node = avl_destroy_nodes(&config_tree, &cookie)) != NULL)
4736 umem_free(node, sizeof (cksum_record_t));
4739 while ((node = avl_destroy_nodes(&uberblock_tree, &cookie)) != NULL)
4740 umem_free(node, sizeof (cksum_record_t));
4742 avl_destroy(&config_tree);
4743 avl_destroy(&uberblock_tree);
4747 return (config_found == B_FALSE ? 2 :
4748 (error == B_TRUE ? 1 : 0));
4751 static uint64_t dataset_feature_count[SPA_FEATURES];
4752 static uint64_t global_feature_count[SPA_FEATURES];
4753 static uint64_t remap_deadlist_count = 0;
4757 dump_one_objset(const char *dsname, void *arg)
4763 error = open_objset(dsname, FTAG, &os);
4767 for (f = 0; f < SPA_FEATURES; f++) {
4768 if (!dsl_dataset_feature_is_active(dmu_objset_ds(os), f))
4770 ASSERT(spa_feature_table[f].fi_flags &
4771 ZFEATURE_FLAG_PER_DATASET);
4772 dataset_feature_count[f]++;
4775 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) {
4776 remap_deadlist_count++;
4779 for (dsl_bookmark_node_t *dbn =
4780 avl_first(&dmu_objset_ds(os)->ds_bookmarks); dbn != NULL;
4781 dbn = AVL_NEXT(&dmu_objset_ds(os)->ds_bookmarks, dbn)) {
4782 mos_obj_refd(dbn->dbn_phys.zbm_redaction_obj);
4783 if (dbn->dbn_phys.zbm_redaction_obj != 0)
4784 global_feature_count[SPA_FEATURE_REDACTION_BOOKMARKS]++;
4785 if (dbn->dbn_phys.zbm_flags & ZBM_FLAG_HAS_FBN)
4786 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN]++;
4789 if (dsl_deadlist_is_open(&dmu_objset_ds(os)->ds_dir->dd_livelist) &&
4790 !dmu_objset_is_snapshot(os)) {
4791 global_feature_count[SPA_FEATURE_LIVELIST]++;
4795 close_objset(os, FTAG);
4796 fuid_table_destroy();
4803 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
4804 typedef struct zdb_blkstats {
4810 uint64_t zb_ditto_samevdev;
4811 uint64_t zb_ditto_same_ms;
4812 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
4816 * Extended object types to report deferred frees and dedup auto-ditto blocks.
4818 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
4819 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
4820 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
4821 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
4823 static const char *zdb_ot_extname[] = {
4830 #define ZB_TOTAL DN_MAX_LEVELS
4831 #define SPA_MAX_FOR_16M (SPA_MAXBLOCKSHIFT+1)
4833 typedef struct zdb_cb {
4834 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
4835 uint64_t zcb_removing_size;
4836 uint64_t zcb_checkpoint_size;
4837 uint64_t zcb_dedup_asize;
4838 uint64_t zcb_dedup_blocks;
4839 uint64_t zcb_psize_count[SPA_MAX_FOR_16M];
4840 uint64_t zcb_lsize_count[SPA_MAX_FOR_16M];
4841 uint64_t zcb_asize_count[SPA_MAX_FOR_16M];
4842 uint64_t zcb_psize_len[SPA_MAX_FOR_16M];
4843 uint64_t zcb_lsize_len[SPA_MAX_FOR_16M];
4844 uint64_t zcb_asize_len[SPA_MAX_FOR_16M];
4845 uint64_t zcb_psize_total;
4846 uint64_t zcb_lsize_total;
4847 uint64_t zcb_asize_total;
4848 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
4849 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
4850 [BPE_PAYLOAD_SIZE + 1];
4852 hrtime_t zcb_lastprint;
4853 uint64_t zcb_totalasize;
4854 uint64_t zcb_errors[256];
4858 uint32_t **zcb_vd_obsolete_counts;
4861 /* test if two DVA offsets from same vdev are within the same metaslab */
4863 same_metaslab(spa_t *spa, uint64_t vdev, uint64_t off1, uint64_t off2)
4865 vdev_t *vd = vdev_lookup_top(spa, vdev);
4866 uint64_t ms_shift = vd->vdev_ms_shift;
4868 return ((off1 >> ms_shift) == (off2 >> ms_shift));
4872 * Used to simplify reporting of the histogram data.
4874 typedef struct one_histo {
4878 uint64_t cumulative;
4882 * The number of separate histograms processed for psize, lsize and asize.
4887 * This routine will create a fixed column size output of three different
4888 * histograms showing by blocksize of 512 - 2^ SPA_MAX_FOR_16M
4889 * the count, length and cumulative length of the psize, lsize and
4892 * All three types of blocks are listed on a single line
4894 * By default the table is printed in nicenumber format (e.g. 123K) but
4895 * if the '-P' parameter is specified then the full raw number (parseable)
4899 dump_size_histograms(zdb_cb_t *zcb)
4902 * A temporary buffer that allows us to convert a number into
4903 * a string using zdb_nicenumber to allow either raw or human
4904 * readable numbers to be output.
4909 * Define titles which are used in the headers of the tables
4910 * printed by this routine.
4912 const char blocksize_title1[] = "block";
4913 const char blocksize_title2[] = "size";
4914 const char count_title[] = "Count";
4915 const char length_title[] = "Size";
4916 const char cumulative_title[] = "Cum.";
4919 * Setup the histogram arrays (psize, lsize, and asize).
4921 one_histo_t parm_histo[NUM_HISTO];
4923 parm_histo[0].name = "psize";
4924 parm_histo[0].count = zcb->zcb_psize_count;
4925 parm_histo[0].len = zcb->zcb_psize_len;
4926 parm_histo[0].cumulative = 0;
4928 parm_histo[1].name = "lsize";
4929 parm_histo[1].count = zcb->zcb_lsize_count;
4930 parm_histo[1].len = zcb->zcb_lsize_len;
4931 parm_histo[1].cumulative = 0;
4933 parm_histo[2].name = "asize";
4934 parm_histo[2].count = zcb->zcb_asize_count;
4935 parm_histo[2].len = zcb->zcb_asize_len;
4936 parm_histo[2].cumulative = 0;
4939 (void) printf("\nBlock Size Histogram\n");
4941 * Print the first line titles
4944 (void) printf("\n%s\t", blocksize_title1);
4946 (void) printf("\n%7s ", blocksize_title1);
4948 for (int j = 0; j < NUM_HISTO; j++) {
4949 if (dump_opt['P']) {
4950 if (j < NUM_HISTO - 1) {
4951 (void) printf("%s\t\t\t", parm_histo[j].name);
4953 /* Don't print trailing spaces */
4954 (void) printf(" %s", parm_histo[j].name);
4957 if (j < NUM_HISTO - 1) {
4958 /* Left aligned strings in the output */
4959 (void) printf("%-7s ",
4960 parm_histo[j].name);
4962 /* Don't print trailing spaces */
4963 (void) printf("%s", parm_histo[j].name);
4967 (void) printf("\n");
4970 * Print the second line titles
4972 if (dump_opt['P']) {
4973 (void) printf("%s\t", blocksize_title2);
4975 (void) printf("%7s ", blocksize_title2);
4978 for (int i = 0; i < NUM_HISTO; i++) {
4979 if (dump_opt['P']) {
4980 (void) printf("%s\t%s\t%s\t",
4981 count_title, length_title, cumulative_title);
4983 (void) printf("%7s%7s%7s",
4984 count_title, length_title, cumulative_title);
4987 (void) printf("\n");
4992 for (int i = SPA_MINBLOCKSHIFT; i < SPA_MAX_FOR_16M; i++) {
4995 * Print the first column showing the blocksize
4997 zdb_nicenum((1ULL << i), numbuf, sizeof (numbuf));
4999 if (dump_opt['P']) {
5000 printf("%s", numbuf);
5002 printf("%7s:", numbuf);
5006 * Print the remaining set of 3 columns per size:
5007 * for psize, lsize and asize
5009 for (int j = 0; j < NUM_HISTO; j++) {
5010 parm_histo[j].cumulative += parm_histo[j].len[i];
5012 zdb_nicenum(parm_histo[j].count[i],
5013 numbuf, sizeof (numbuf));
5015 (void) printf("\t%s", numbuf);
5017 (void) printf("%7s", numbuf);
5019 zdb_nicenum(parm_histo[j].len[i],
5020 numbuf, sizeof (numbuf));
5022 (void) printf("\t%s", numbuf);
5024 (void) printf("%7s", numbuf);
5026 zdb_nicenum(parm_histo[j].cumulative,
5027 numbuf, sizeof (numbuf));
5029 (void) printf("\t%s", numbuf);
5031 (void) printf("%7s", numbuf);
5033 (void) printf("\n");
5038 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
5039 dmu_object_type_t type)
5041 uint64_t refcnt = 0;
5044 ASSERT(type < ZDB_OT_TOTAL);
5046 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
5049 spa_config_enter(zcb->zcb_spa, SCL_CONFIG, FTAG, RW_READER);
5051 for (i = 0; i < 4; i++) {
5052 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
5053 int t = (i & 1) ? type : ZDB_OT_TOTAL;
5055 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
5057 zb->zb_asize += BP_GET_ASIZE(bp);
5058 zb->zb_lsize += BP_GET_LSIZE(bp);
5059 zb->zb_psize += BP_GET_PSIZE(bp);
5063 * The histogram is only big enough to record blocks up to
5064 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
5067 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
5068 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
5069 zb->zb_psize_histogram[idx]++;
5071 zb->zb_gangs += BP_COUNT_GANG(bp);
5073 switch (BP_GET_NDVAS(bp)) {
5075 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5076 DVA_GET_VDEV(&bp->blk_dva[1])) {
5077 zb->zb_ditto_samevdev++;
5079 if (same_metaslab(zcb->zcb_spa,
5080 DVA_GET_VDEV(&bp->blk_dva[0]),
5081 DVA_GET_OFFSET(&bp->blk_dva[0]),
5082 DVA_GET_OFFSET(&bp->blk_dva[1])))
5083 zb->zb_ditto_same_ms++;
5087 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5088 DVA_GET_VDEV(&bp->blk_dva[1])) +
5089 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5090 DVA_GET_VDEV(&bp->blk_dva[2])) +
5091 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
5092 DVA_GET_VDEV(&bp->blk_dva[2]));
5094 zb->zb_ditto_samevdev++;
5096 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5097 DVA_GET_VDEV(&bp->blk_dva[1]) &&
5098 same_metaslab(zcb->zcb_spa,
5099 DVA_GET_VDEV(&bp->blk_dva[0]),
5100 DVA_GET_OFFSET(&bp->blk_dva[0]),
5101 DVA_GET_OFFSET(&bp->blk_dva[1])))
5102 zb->zb_ditto_same_ms++;
5103 else if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
5104 DVA_GET_VDEV(&bp->blk_dva[2]) &&
5105 same_metaslab(zcb->zcb_spa,
5106 DVA_GET_VDEV(&bp->blk_dva[0]),
5107 DVA_GET_OFFSET(&bp->blk_dva[0]),
5108 DVA_GET_OFFSET(&bp->blk_dva[2])))
5109 zb->zb_ditto_same_ms++;
5110 else if (DVA_GET_VDEV(&bp->blk_dva[1]) ==
5111 DVA_GET_VDEV(&bp->blk_dva[2]) &&
5112 same_metaslab(zcb->zcb_spa,
5113 DVA_GET_VDEV(&bp->blk_dva[1]),
5114 DVA_GET_OFFSET(&bp->blk_dva[1]),
5115 DVA_GET_OFFSET(&bp->blk_dva[2])))
5116 zb->zb_ditto_same_ms++;
5122 spa_config_exit(zcb->zcb_spa, SCL_CONFIG, FTAG);
5124 if (BP_IS_EMBEDDED(bp)) {
5125 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
5126 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
5127 [BPE_GET_PSIZE(bp)]++;
5131 * The binning histogram bins by powers of two up to
5132 * SPA_MAXBLOCKSIZE rather than creating bins for
5133 * every possible blocksize found in the pool.
5135 int bin = highbit64(BP_GET_PSIZE(bp)) - 1;
5137 zcb->zcb_psize_count[bin]++;
5138 zcb->zcb_psize_len[bin] += BP_GET_PSIZE(bp);
5139 zcb->zcb_psize_total += BP_GET_PSIZE(bp);
5141 bin = highbit64(BP_GET_LSIZE(bp)) - 1;
5143 zcb->zcb_lsize_count[bin]++;
5144 zcb->zcb_lsize_len[bin] += BP_GET_LSIZE(bp);
5145 zcb->zcb_lsize_total += BP_GET_LSIZE(bp);
5147 bin = highbit64(BP_GET_ASIZE(bp)) - 1;
5149 zcb->zcb_asize_count[bin]++;
5150 zcb->zcb_asize_len[bin] += BP_GET_ASIZE(bp);
5151 zcb->zcb_asize_total += BP_GET_ASIZE(bp);
5156 if (BP_GET_DEDUP(bp)) {
5160 ddt = ddt_select(zcb->zcb_spa, bp);
5162 dde = ddt_lookup(ddt, bp, B_FALSE);
5167 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
5168 ddt_phys_decref(ddp);
5169 refcnt = ddp->ddp_refcnt;
5170 if (ddt_phys_total_refcnt(dde) == 0)
5171 ddt_remove(ddt, dde);
5176 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
5177 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa),
5178 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
5182 zdb_blkptr_done(zio_t *zio)
5184 spa_t *spa = zio->io_spa;
5185 blkptr_t *bp = zio->io_bp;
5186 int ioerr = zio->io_error;
5187 zdb_cb_t *zcb = zio->io_private;
5188 zbookmark_phys_t *zb = &zio->io_bookmark;
5190 abd_free(zio->io_abd);
5192 mutex_enter(&spa->spa_scrub_lock);
5193 spa->spa_load_verify_bytes -= BP_GET_PSIZE(bp);
5194 cv_broadcast(&spa->spa_scrub_io_cv);
5196 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
5197 char blkbuf[BP_SPRINTF_LEN];
5199 zcb->zcb_haderrors = 1;
5200 zcb->zcb_errors[ioerr]++;
5202 if (dump_opt['b'] >= 2)
5203 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
5207 (void) printf("zdb_blkptr_cb: "
5208 "Got error %d reading "
5209 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
5211 (u_longlong_t)zb->zb_objset,
5212 (u_longlong_t)zb->zb_object,
5213 (u_longlong_t)zb->zb_level,
5214 (u_longlong_t)zb->zb_blkid,
5217 mutex_exit(&spa->spa_scrub_lock);
5221 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
5222 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
5224 zdb_cb_t *zcb = arg;
5225 dmu_object_type_t type;
5226 boolean_t is_metadata;
5228 if (zb->zb_level == ZB_DNODE_LEVEL)
5231 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
5232 char blkbuf[BP_SPRINTF_LEN];
5233 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
5234 (void) printf("objset %llu object %llu "
5235 "level %lld offset 0x%llx %s\n",
5236 (u_longlong_t)zb->zb_objset,
5237 (u_longlong_t)zb->zb_object,
5238 (longlong_t)zb->zb_level,
5239 (u_longlong_t)blkid2offset(dnp, bp, zb),
5243 if (BP_IS_HOLE(bp) || BP_IS_REDACTED(bp))
5246 type = BP_GET_TYPE(bp);
5248 zdb_count_block(zcb, zilog, bp,
5249 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
5251 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
5253 if (!BP_IS_EMBEDDED(bp) &&
5254 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
5255 size_t size = BP_GET_PSIZE(bp);
5256 abd_t *abd = abd_alloc(size, B_FALSE);
5257 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
5259 /* If it's an intent log block, failure is expected. */
5260 if (zb->zb_level == ZB_ZIL_LEVEL)
5261 flags |= ZIO_FLAG_SPECULATIVE;
5263 mutex_enter(&spa->spa_scrub_lock);
5264 while (spa->spa_load_verify_bytes > max_inflight_bytes)
5265 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
5266 spa->spa_load_verify_bytes += size;
5267 mutex_exit(&spa->spa_scrub_lock);
5269 zio_nowait(zio_read(NULL, spa, bp, abd, size,
5270 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
5273 zcb->zcb_readfails = 0;
5275 /* only call gethrtime() every 100 blocks */
5282 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
5283 uint64_t now = gethrtime();
5285 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
5287 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
5289 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
5291 /* make sure nicenum has enough space */
5292 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
5294 zfs_nicebytes(bytes, buf, sizeof (buf));
5295 (void) fprintf(stderr,
5296 "\r%5s completed (%4dMB/s) "
5297 "estimated time remaining: %uhr %02umin %02usec ",
5298 buf, kb_per_sec / 1024,
5299 sec_remaining / 60 / 60,
5300 sec_remaining / 60 % 60,
5301 sec_remaining % 60);
5303 zcb->zcb_lastprint = now;
5310 zdb_leak(void *arg, uint64_t start, uint64_t size)
5314 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
5315 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
5318 static metaslab_ops_t zdb_metaslab_ops = {
5324 load_unflushed_svr_segs_cb(spa_t *spa, space_map_entry_t *sme,
5325 uint64_t txg, void *arg)
5327 spa_vdev_removal_t *svr = arg;
5329 uint64_t offset = sme->sme_offset;
5330 uint64_t size = sme->sme_run;
5332 /* skip vdevs we don't care about */
5333 if (sme->sme_vdev != svr->svr_vdev_id)
5336 vdev_t *vd = vdev_lookup_top(spa, sme->sme_vdev);
5337 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
5338 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE);
5340 if (txg < metaslab_unflushed_txg(ms))
5343 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5344 ASSERT(vim != NULL);
5345 if (offset >= vdev_indirect_mapping_max_offset(vim))
5348 if (sme->sme_type == SM_ALLOC)
5349 range_tree_add(svr->svr_allocd_segs, offset, size);
5351 range_tree_remove(svr->svr_allocd_segs, offset, size);
5358 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
5359 uint64_t size, void *arg)
5362 * This callback was called through a remap from
5363 * a device being removed. Therefore, the vdev that
5364 * this callback is applied to is a concrete
5367 ASSERT(vdev_is_concrete(vd));
5369 VERIFY0(metaslab_claim_impl(vd, offset, size,
5370 spa_min_claim_txg(vd->vdev_spa)));
5374 claim_segment_cb(void *arg, uint64_t offset, uint64_t size)
5378 vdev_indirect_ops.vdev_op_remap(vd, offset, size,
5379 claim_segment_impl_cb, NULL);
5383 * After accounting for all allocated blocks that are directly referenced,
5384 * we might have missed a reference to a block from a partially complete
5385 * (and thus unused) indirect mapping object. We perform a secondary pass
5386 * through the metaslabs we have already mapped and claim the destination
5390 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb)
5395 if (spa->spa_vdev_removal == NULL)
5398 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
5400 spa_vdev_removal_t *svr = spa->spa_vdev_removal;
5401 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id);
5402 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5404 ASSERT0(range_tree_space(svr->svr_allocd_segs));
5406 range_tree_t *allocs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0);
5407 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) {
5408 metaslab_t *msp = vd->vdev_ms[msi];
5410 if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim))
5413 ASSERT0(range_tree_space(allocs));
5414 if (msp->ms_sm != NULL)
5415 VERIFY0(space_map_load(msp->ms_sm, allocs, SM_ALLOC));
5416 range_tree_vacate(allocs, range_tree_add, svr->svr_allocd_segs);
5418 range_tree_destroy(allocs);
5420 iterate_through_spacemap_logs(spa, load_unflushed_svr_segs_cb, svr);
5423 * Clear everything past what has been synced,
5424 * because we have not allocated mappings for
5427 range_tree_clear(svr->svr_allocd_segs,
5428 vdev_indirect_mapping_max_offset(vim),
5429 vd->vdev_asize - vdev_indirect_mapping_max_offset(vim));
5431 zcb->zcb_removing_size += range_tree_space(svr->svr_allocd_segs);
5432 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd);
5434 spa_config_exit(spa, SCL_CONFIG, FTAG);
5439 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed,
5442 zdb_cb_t *zcb = arg;
5443 spa_t *spa = zcb->zcb_spa;
5445 const dva_t *dva = &bp->blk_dva[0];
5448 ASSERT(!dump_opt['L']);
5449 ASSERT3U(BP_GET_NDVAS(bp), ==, 1);
5451 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
5452 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva));
5453 ASSERT3P(vd, !=, NULL);
5454 spa_config_exit(spa, SCL_VDEV, FTAG);
5456 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0);
5457 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL);
5459 vdev_indirect_mapping_increment_obsolete_count(
5460 vd->vdev_indirect_mapping,
5461 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva),
5462 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
5468 zdb_load_obsolete_counts(vdev_t *vd)
5470 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5471 spa_t *spa = vd->vdev_spa;
5472 spa_condensing_indirect_phys_t *scip =
5473 &spa->spa_condensing_indirect_phys;
5474 uint64_t obsolete_sm_object;
5477 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object));
5478 EQUIV(obsolete_sm_object != 0, vd->vdev_obsolete_sm != NULL);
5479 counts = vdev_indirect_mapping_load_obsolete_counts(vim);
5480 if (vd->vdev_obsolete_sm != NULL) {
5481 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
5482 vd->vdev_obsolete_sm);
5484 if (scip->scip_vdev == vd->vdev_id &&
5485 scip->scip_prev_obsolete_sm_object != 0) {
5486 space_map_t *prev_obsolete_sm = NULL;
5487 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset,
5488 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0));
5489 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
5491 space_map_close(prev_obsolete_sm);
5497 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
5504 ASSERT(!dump_opt['L']);
5506 bzero(&ddb, sizeof (ddb));
5507 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
5509 ddt_phys_t *ddp = dde.dde_phys;
5511 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
5514 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
5516 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
5517 if (ddp->ddp_phys_birth == 0)
5519 ddt_bp_create(ddb.ddb_checksum,
5520 &dde.dde_key, ddp, &blk);
5521 if (p == DDT_PHYS_DITTO) {
5522 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
5524 zcb->zcb_dedup_asize +=
5525 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
5526 zcb->zcb_dedup_blocks++;
5529 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
5531 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
5535 ASSERT(error == ENOENT);
5538 typedef struct checkpoint_sm_exclude_entry_arg {
5540 uint64_t cseea_checkpoint_size;
5541 } checkpoint_sm_exclude_entry_arg_t;
5544 checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg)
5546 checkpoint_sm_exclude_entry_arg_t *cseea = arg;
5547 vdev_t *vd = cseea->cseea_vd;
5548 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift];
5549 uint64_t end = sme->sme_offset + sme->sme_run;
5551 ASSERT(sme->sme_type == SM_FREE);
5554 * Since the vdev_checkpoint_sm exists in the vdev level
5555 * and the ms_sm space maps exist in the metaslab level,
5556 * an entry in the checkpoint space map could theoretically
5557 * cross the boundaries of the metaslab that it belongs.
5559 * In reality, because of the way that we populate and
5560 * manipulate the checkpoint's space maps currently,
5561 * there shouldn't be any entries that cross metaslabs.
5562 * Hence the assertion below.
5564 * That said, there is no fundamental requirement that
5565 * the checkpoint's space map entries should not cross
5566 * metaslab boundaries. So if needed we could add code
5567 * that handles metaslab-crossing segments in the future.
5569 VERIFY3U(sme->sme_offset, >=, ms->ms_start);
5570 VERIFY3U(end, <=, ms->ms_start + ms->ms_size);
5573 * By removing the entry from the allocated segments we
5574 * also verify that the entry is there to begin with.
5576 mutex_enter(&ms->ms_lock);
5577 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run);
5578 mutex_exit(&ms->ms_lock);
5580 cseea->cseea_checkpoint_size += sme->sme_run;
5585 zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb)
5587 spa_t *spa = vd->vdev_spa;
5588 space_map_t *checkpoint_sm = NULL;
5589 uint64_t checkpoint_sm_obj;
5592 * If there is no vdev_top_zap, we are in a pool whose
5593 * version predates the pool checkpoint feature.
5595 if (vd->vdev_top_zap == 0)
5599 * If there is no reference of the vdev_checkpoint_sm in
5600 * the vdev_top_zap, then one of the following scenarios
5603 * 1] There is no checkpoint
5604 * 2] There is a checkpoint, but no checkpointed blocks
5605 * have been freed yet
5606 * 3] The current vdev is indirect
5608 * In these cases we return immediately.
5610 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap,
5611 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
5614 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap,
5615 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1,
5616 &checkpoint_sm_obj));
5618 checkpoint_sm_exclude_entry_arg_t cseea;
5619 cseea.cseea_vd = vd;
5620 cseea.cseea_checkpoint_size = 0;
5622 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa),
5623 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift));
5625 VERIFY0(space_map_iterate(checkpoint_sm,
5626 space_map_length(checkpoint_sm),
5627 checkpoint_sm_exclude_entry_cb, &cseea));
5628 space_map_close(checkpoint_sm);
5630 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size;
5634 zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb)
5636 ASSERT(!dump_opt['L']);
5638 vdev_t *rvd = spa->spa_root_vdev;
5639 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
5640 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id);
5641 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb);
5646 count_unflushed_space_cb(spa_t *spa, space_map_entry_t *sme,
5647 uint64_t txg, void *arg)
5649 int64_t *ualloc_space = arg;
5651 uint64_t offset = sme->sme_offset;
5652 uint64_t vdev_id = sme->sme_vdev;
5654 vdev_t *vd = vdev_lookup_top(spa, vdev_id);
5655 if (!vdev_is_concrete(vd))
5658 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
5659 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE);
5661 if (txg < metaslab_unflushed_txg(ms))
5664 if (sme->sme_type == SM_ALLOC)
5665 *ualloc_space += sme->sme_run;
5667 *ualloc_space -= sme->sme_run;
5673 get_unflushed_alloc_space(spa_t *spa)
5678 int64_t ualloc_space = 0;
5679 iterate_through_spacemap_logs(spa, count_unflushed_space_cb,
5681 return (ualloc_space);
5685 load_unflushed_cb(spa_t *spa, space_map_entry_t *sme, uint64_t txg, void *arg)
5687 maptype_t *uic_maptype = arg;
5689 uint64_t offset = sme->sme_offset;
5690 uint64_t size = sme->sme_run;
5691 uint64_t vdev_id = sme->sme_vdev;
5693 vdev_t *vd = vdev_lookup_top(spa, vdev_id);
5695 /* skip indirect vdevs */
5696 if (!vdev_is_concrete(vd))
5699 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
5701 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE);
5702 ASSERT(*uic_maptype == SM_ALLOC || *uic_maptype == SM_FREE);
5704 if (txg < metaslab_unflushed_txg(ms))
5707 if (*uic_maptype == sme->sme_type)
5708 range_tree_add(ms->ms_allocatable, offset, size);
5710 range_tree_remove(ms->ms_allocatable, offset, size);
5716 load_unflushed_to_ms_allocatables(spa_t *spa, maptype_t maptype)
5718 iterate_through_spacemap_logs(spa, load_unflushed_cb, &maptype);
5722 load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype)
5724 vdev_t *rvd = spa->spa_root_vdev;
5725 for (uint64_t i = 0; i < rvd->vdev_children; i++) {
5726 vdev_t *vd = rvd->vdev_child[i];
5728 ASSERT3U(i, ==, vd->vdev_id);
5730 if (vd->vdev_ops == &vdev_indirect_ops)
5733 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
5734 metaslab_t *msp = vd->vdev_ms[m];
5736 (void) fprintf(stderr,
5737 "\rloading concrete vdev %llu, "
5738 "metaslab %llu of %llu ...",
5739 (longlong_t)vd->vdev_id,
5740 (longlong_t)msp->ms_id,
5741 (longlong_t)vd->vdev_ms_count);
5743 mutex_enter(&msp->ms_lock);
5744 range_tree_vacate(msp->ms_allocatable, NULL, NULL);
5747 * We don't want to spend the CPU manipulating the
5748 * size-ordered tree, so clear the range_tree ops.
5750 msp->ms_allocatable->rt_ops = NULL;
5752 if (msp->ms_sm != NULL) {
5753 VERIFY0(space_map_load(msp->ms_sm,
5754 msp->ms_allocatable, maptype));
5756 if (!msp->ms_loaded)
5757 msp->ms_loaded = B_TRUE;
5758 mutex_exit(&msp->ms_lock);
5762 load_unflushed_to_ms_allocatables(spa, maptype);
5766 * vm_idxp is an in-out parameter which (for indirect vdevs) is the
5767 * index in vim_entries that has the first entry in this metaslab.
5768 * On return, it will be set to the first entry after this metaslab.
5771 load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp,
5774 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5776 mutex_enter(&msp->ms_lock);
5777 range_tree_vacate(msp->ms_allocatable, NULL, NULL);
5780 * We don't want to spend the CPU manipulating the
5781 * size-ordered tree, so clear the range_tree ops.
5783 msp->ms_allocatable->rt_ops = NULL;
5785 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim);
5787 vdev_indirect_mapping_entry_phys_t *vimep =
5788 &vim->vim_entries[*vim_idxp];
5789 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
5790 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst);
5791 ASSERT3U(ent_offset, >=, msp->ms_start);
5792 if (ent_offset >= msp->ms_start + msp->ms_size)
5796 * Mappings do not cross metaslab boundaries,
5797 * because we create them by walking the metaslabs.
5799 ASSERT3U(ent_offset + ent_len, <=,
5800 msp->ms_start + msp->ms_size);
5801 range_tree_add(msp->ms_allocatable, ent_offset, ent_len);
5804 if (!msp->ms_loaded)
5805 msp->ms_loaded = B_TRUE;
5806 mutex_exit(&msp->ms_lock);
5810 zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb)
5812 ASSERT(!dump_opt['L']);
5814 vdev_t *rvd = spa->spa_root_vdev;
5815 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
5816 vdev_t *vd = rvd->vdev_child[c];
5818 ASSERT3U(c, ==, vd->vdev_id);
5820 if (vd->vdev_ops != &vdev_indirect_ops)
5824 * Note: we don't check for mapping leaks on
5825 * removing vdevs because their ms_allocatable's
5826 * are used to look for leaks in allocated space.
5828 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd);
5831 * Normally, indirect vdevs don't have any
5832 * metaslabs. We want to set them up for
5835 VERIFY0(vdev_metaslab_init(vd, 0));
5837 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5838 uint64_t vim_idx = 0;
5839 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
5841 (void) fprintf(stderr,
5842 "\rloading indirect vdev %llu, "
5843 "metaslab %llu of %llu ...",
5844 (longlong_t)vd->vdev_id,
5845 (longlong_t)vd->vdev_ms[m]->ms_id,
5846 (longlong_t)vd->vdev_ms_count);
5848 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m],
5851 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim));
5856 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
5863 dsl_pool_t *dp = spa->spa_dsl_pool;
5864 vdev_t *rvd = spa->spa_root_vdev;
5867 * We are going to be changing the meaning of the metaslab's
5868 * ms_allocatable. Ensure that the allocator doesn't try to
5871 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
5872 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
5874 zcb->zcb_vd_obsolete_counts =
5875 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *),
5879 * For leak detection, we overload the ms_allocatable trees
5880 * to contain allocated segments instead of free segments.
5881 * As a result, we can't use the normal metaslab_load/unload
5884 zdb_leak_init_prepare_indirect_vdevs(spa, zcb);
5885 load_concrete_ms_allocatable_trees(spa, SM_ALLOC);
5888 * On load_concrete_ms_allocatable_trees() we loaded all the
5889 * allocated entries from the ms_sm to the ms_allocatable for
5890 * each metaslab. If the pool has a checkpoint or is in the
5891 * middle of discarding a checkpoint, some of these blocks
5892 * may have been freed but their ms_sm may not have been
5893 * updated because they are referenced by the checkpoint. In
5894 * order to avoid false-positives during leak-detection, we
5895 * go through the vdev's checkpoint space map and exclude all
5896 * its entries from their relevant ms_allocatable.
5898 * We also aggregate the space held by the checkpoint and add
5899 * it to zcb_checkpoint_size.
5901 * Note that at this point we are also verifying that all the
5902 * entries on the checkpoint_sm are marked as allocated in
5903 * the ms_sm of their relevant metaslab.
5904 * [see comment in checkpoint_sm_exclude_entry_cb()]
5906 zdb_leak_init_exclude_checkpoint(spa, zcb);
5907 ASSERT3U(zcb->zcb_checkpoint_size, ==, spa_get_checkpoint_space(spa));
5909 /* for cleaner progress output */
5910 (void) fprintf(stderr, "\n");
5912 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
5913 ASSERT(spa_feature_is_enabled(spa,
5914 SPA_FEATURE_DEVICE_REMOVAL));
5915 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj,
5916 increment_indirect_mapping_cb, zcb, NULL);
5919 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
5920 zdb_ddt_leak_init(spa, zcb);
5921 spa_config_exit(spa, SCL_CONFIG, FTAG);
5925 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb)
5927 boolean_t leaks = B_FALSE;
5928 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
5929 uint64_t total_leaked = 0;
5930 boolean_t are_precise = B_FALSE;
5932 ASSERT(vim != NULL);
5934 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
5935 vdev_indirect_mapping_entry_phys_t *vimep =
5936 &vim->vim_entries[i];
5937 uint64_t obsolete_bytes = 0;
5938 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
5939 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];
5942 * This is not very efficient but it's easy to
5943 * verify correctness.
5945 for (uint64_t inner_offset = 0;
5946 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst);
5947 inner_offset += 1 << vd->vdev_ashift) {
5948 if (range_tree_contains(msp->ms_allocatable,
5949 offset + inner_offset, 1 << vd->vdev_ashift)) {
5950 obsolete_bytes += 1 << vd->vdev_ashift;
5954 int64_t bytes_leaked = obsolete_bytes -
5955 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i];
5956 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=,
5957 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]);
5959 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise));
5960 if (bytes_leaked != 0 && (are_precise || dump_opt['d'] >= 5)) {
5961 (void) printf("obsolete indirect mapping count "
5962 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n",
5963 (u_longlong_t)vd->vdev_id,
5964 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
5965 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
5966 (u_longlong_t)bytes_leaked);
5968 total_leaked += ABS(bytes_leaked);
5971 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise));
5972 if (!are_precise && total_leaked > 0) {
5973 int pct_leaked = total_leaked * 100 /
5974 vdev_indirect_mapping_bytes_mapped(vim);
5975 (void) printf("cannot verify obsolete indirect mapping "
5976 "counts of vdev %llu because precise feature was not "
5977 "enabled when it was removed: %d%% (%llx bytes) of mapping"
5979 (u_longlong_t)vd->vdev_id, pct_leaked,
5980 (u_longlong_t)total_leaked);
5981 } else if (total_leaked > 0) {
5982 (void) printf("obsolete indirect mapping count mismatch "
5983 "for vdev %llu -- %llx total bytes mismatched\n",
5984 (u_longlong_t)vd->vdev_id,
5985 (u_longlong_t)total_leaked);
5989 vdev_indirect_mapping_free_obsolete_counts(vim,
5990 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
5991 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL;
5997 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb)
6002 boolean_t leaks = B_FALSE;
6003 vdev_t *rvd = spa->spa_root_vdev;
6004 for (unsigned c = 0; c < rvd->vdev_children; c++) {
6005 vdev_t *vd = rvd->vdev_child[c];
6006 metaslab_group_t *mg __maybe_unused = vd->vdev_mg;
6008 if (zcb->zcb_vd_obsolete_counts[c] != NULL) {
6009 leaks |= zdb_check_for_obsolete_leaks(vd, zcb);
6012 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
6013 metaslab_t *msp = vd->vdev_ms[m];
6014 ASSERT3P(mg, ==, msp->ms_group);
6017 * ms_allocatable has been overloaded
6018 * to contain allocated segments. Now that
6019 * we finished traversing all blocks, any
6020 * block that remains in the ms_allocatable
6021 * represents an allocated block that we
6022 * did not claim during the traversal.
6023 * Claimed blocks would have been removed
6024 * from the ms_allocatable. For indirect
6025 * vdevs, space remaining in the tree
6026 * represents parts of the mapping that are
6027 * not referenced, which is not a bug.
6029 if (vd->vdev_ops == &vdev_indirect_ops) {
6030 range_tree_vacate(msp->ms_allocatable,
6033 range_tree_vacate(msp->ms_allocatable,
6036 if (msp->ms_loaded) {
6037 msp->ms_loaded = B_FALSE;
6042 umem_free(zcb->zcb_vd_obsolete_counts,
6043 rvd->vdev_children * sizeof (uint32_t *));
6044 zcb->zcb_vd_obsolete_counts = NULL;
6051 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
6053 zdb_cb_t *zcb = arg;
6055 if (dump_opt['b'] >= 5) {
6056 char blkbuf[BP_SPRINTF_LEN];
6057 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
6058 (void) printf("[%s] %s\n",
6059 "deferred free", blkbuf);
6061 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
6066 * Iterate over livelists which have been destroyed by the user but
6067 * are still present in the MOS, waiting to be freed
6070 iterate_deleted_livelists(spa_t *spa, ll_iter_t func, void *arg)
6072 objset_t *mos = spa->spa_meta_objset;
6074 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT,
6075 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj);
6081 zap_attribute_t attr;
6083 /* NULL out os prior to dsl_deadlist_open in case it's garbage */
6085 for (zap_cursor_init(&zc, mos, zap_obj);
6086 zap_cursor_retrieve(&zc, &attr) == 0;
6087 (void) zap_cursor_advance(&zc)) {
6088 dsl_deadlist_open(&ll, mos, attr.za_first_integer);
6090 dsl_deadlist_close(&ll);
6092 zap_cursor_fini(&zc);
6096 bpobj_count_block_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed,
6100 return (count_block_cb(arg, bp, tx));
6104 livelist_entry_count_blocks_cb(void *args, dsl_deadlist_entry_t *dle)
6106 zdb_cb_t *zbc = args;
6108 bplist_create(&blks);
6109 /* determine which blocks have been alloc'd but not freed */
6110 VERIFY0(dsl_process_sub_livelist(&dle->dle_bpobj, &blks, NULL, NULL));
6111 /* count those blocks */
6112 (void) bplist_iterate(&blks, count_block_cb, zbc, NULL);
6113 bplist_destroy(&blks);
6118 livelist_count_blocks(dsl_deadlist_t *ll, void *arg)
6120 dsl_deadlist_iterate(ll, livelist_entry_count_blocks_cb, arg);
6124 * Count the blocks in the livelists that have been destroyed by the user
6125 * but haven't yet been freed.
6128 deleted_livelists_count_blocks(spa_t *spa, zdb_cb_t *zbc)
6130 iterate_deleted_livelists(spa, livelist_count_blocks, zbc);
6134 dump_livelist_cb(dsl_deadlist_t *ll, void *arg)
6136 ASSERT3P(arg, ==, NULL);
6137 global_feature_count[SPA_FEATURE_LIVELIST]++;
6138 dump_blkptr_list(ll, "Deleted Livelist");
6139 dsl_deadlist_iterate(ll, sublivelist_verify_lightweight, NULL);
6143 * Print out, register object references to, and increment feature counts for
6144 * livelists that have been destroyed by the user but haven't yet been freed.
6147 deleted_livelists_dump_mos(spa_t *spa)
6150 objset_t *mos = spa->spa_meta_objset;
6151 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT,
6152 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj);
6155 mos_obj_refd(zap_obj);
6156 iterate_deleted_livelists(spa, dump_livelist_cb, NULL);
6160 dump_block_stats(spa_t *spa)
6163 zdb_blkstats_t *zb, *tzb;
6164 uint64_t norm_alloc, norm_space, total_alloc, total_found;
6165 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA |
6166 TRAVERSE_NO_DECRYPT | TRAVERSE_HARD;
6167 boolean_t leaks = B_FALSE;
6169 bp_embedded_type_t i;
6171 bzero(&zcb, sizeof (zcb));
6172 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
6173 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
6174 (dump_opt['c'] == 1) ? "metadata " : "",
6175 dump_opt['c'] ? "checksums " : "",
6176 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
6177 !dump_opt['L'] ? "nothing leaked " : "");
6180 * When leak detection is enabled we load all space maps as SM_ALLOC
6181 * maps, then traverse the pool claiming each block we discover. If
6182 * the pool is perfectly consistent, the segment trees will be empty
6183 * when we're done. Anything left over is a leak; any block we can't
6184 * claim (because it's not part of any space map) is a double
6185 * allocation, reference to a freed block, or an unclaimed log block.
6187 * When leak detection is disabled (-L option) we still traverse the
6188 * pool claiming each block we discover, but we skip opening any space
6191 bzero(&zcb, sizeof (zdb_cb_t));
6192 zdb_leak_init(spa, &zcb);
6195 * If there's a deferred-free bplist, process that first.
6197 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
6198 bpobj_count_block_cb, &zcb, NULL);
6200 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
6201 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
6202 bpobj_count_block_cb, &zcb, NULL);
6205 zdb_claim_removing(spa, &zcb);
6207 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
6208 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
6209 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
6213 deleted_livelists_count_blocks(spa, &zcb);
6215 if (dump_opt['c'] > 1)
6216 flags |= TRAVERSE_PREFETCH_DATA;
6218 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
6219 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_special_class(spa));
6220 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_dedup_class(spa));
6221 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
6222 err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
6225 * If we've traversed the data blocks then we need to wait for those
6226 * I/Os to complete. We leverage "The Godfather" zio to wait on
6227 * all async I/Os to complete.
6229 if (dump_opt['c']) {
6230 for (c = 0; c < max_ncpus; c++) {
6231 (void) zio_wait(spa->spa_async_zio_root[c]);
6232 spa->spa_async_zio_root[c] = zio_root(spa, NULL, NULL,
6233 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
6234 ZIO_FLAG_GODFATHER);
6237 ASSERT0(spa->spa_load_verify_bytes);
6240 * Done after zio_wait() since zcb_haderrors is modified in
6243 zcb.zcb_haderrors |= err;
6245 if (zcb.zcb_haderrors) {
6246 (void) printf("\nError counts:\n\n");
6247 (void) printf("\t%5s %s\n", "errno", "count");
6248 for (e = 0; e < 256; e++) {
6249 if (zcb.zcb_errors[e] != 0) {
6250 (void) printf("\t%5d %llu\n",
6251 e, (u_longlong_t)zcb.zcb_errors[e]);
6257 * Report any leaked segments.
6259 leaks |= zdb_leak_fini(spa, &zcb);
6261 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
6263 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
6264 norm_space = metaslab_class_get_space(spa_normal_class(spa));
6266 total_alloc = norm_alloc +
6267 metaslab_class_get_alloc(spa_log_class(spa)) +
6268 metaslab_class_get_alloc(spa_special_class(spa)) +
6269 metaslab_class_get_alloc(spa_dedup_class(spa)) +
6270 get_unflushed_alloc_space(spa);
6271 total_found = tzb->zb_asize - zcb.zcb_dedup_asize +
6272 zcb.zcb_removing_size + zcb.zcb_checkpoint_size;
6274 if (total_found == total_alloc && !dump_opt['L']) {
6275 (void) printf("\n\tNo leaks (block sum matches space"
6276 " maps exactly)\n");
6277 } else if (!dump_opt['L']) {
6278 (void) printf("block traversal size %llu != alloc %llu "
6280 (u_longlong_t)total_found,
6281 (u_longlong_t)total_alloc,
6282 (dump_opt['L']) ? "unreachable" : "leaked",
6283 (longlong_t)(total_alloc - total_found));
6287 if (tzb->zb_count == 0)
6290 (void) printf("\n");
6291 (void) printf("\t%-16s %14llu\n", "bp count:",
6292 (u_longlong_t)tzb->zb_count);
6293 (void) printf("\t%-16s %14llu\n", "ganged count:",
6294 (longlong_t)tzb->zb_gangs);
6295 (void) printf("\t%-16s %14llu avg: %6llu\n", "bp logical:",
6296 (u_longlong_t)tzb->zb_lsize,
6297 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
6298 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n",
6299 "bp physical:", (u_longlong_t)tzb->zb_psize,
6300 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
6301 (double)tzb->zb_lsize / tzb->zb_psize);
6302 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n",
6303 "bp allocated:", (u_longlong_t)tzb->zb_asize,
6304 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
6305 (double)tzb->zb_lsize / tzb->zb_asize);
6306 (void) printf("\t%-16s %14llu ref>1: %6llu deduplication: %6.2f\n",
6307 "bp deduped:", (u_longlong_t)zcb.zcb_dedup_asize,
6308 (u_longlong_t)zcb.zcb_dedup_blocks,
6309 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
6310 (void) printf("\t%-16s %14llu used: %5.2f%%\n", "Normal class:",
6311 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
6313 if (spa_special_class(spa)->mc_rotor != NULL) {
6314 uint64_t alloc = metaslab_class_get_alloc(
6315 spa_special_class(spa));
6316 uint64_t space = metaslab_class_get_space(
6317 spa_special_class(spa));
6319 (void) printf("\t%-16s %14llu used: %5.2f%%\n",
6320 "Special class", (u_longlong_t)alloc,
6321 100.0 * alloc / space);
6324 if (spa_dedup_class(spa)->mc_rotor != NULL) {
6325 uint64_t alloc = metaslab_class_get_alloc(
6326 spa_dedup_class(spa));
6327 uint64_t space = metaslab_class_get_space(
6328 spa_dedup_class(spa));
6330 (void) printf("\t%-16s %14llu used: %5.2f%%\n",
6331 "Dedup class", (u_longlong_t)alloc,
6332 100.0 * alloc / space);
6335 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
6336 if (zcb.zcb_embedded_blocks[i] == 0)
6338 (void) printf("\n");
6339 (void) printf("\tadditional, non-pointer bps of type %u: "
6341 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
6343 if (dump_opt['b'] >= 3) {
6344 (void) printf("\t number of (compressed) bytes: "
6346 dump_histogram(zcb.zcb_embedded_histogram[i],
6347 sizeof (zcb.zcb_embedded_histogram[i]) /
6348 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
6352 if (tzb->zb_ditto_samevdev != 0) {
6353 (void) printf("\tDittoed blocks on same vdev: %llu\n",
6354 (longlong_t)tzb->zb_ditto_samevdev);
6356 if (tzb->zb_ditto_same_ms != 0) {
6357 (void) printf("\tDittoed blocks in same metaslab: %llu\n",
6358 (longlong_t)tzb->zb_ditto_same_ms);
6361 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) {
6362 vdev_t *vd = spa->spa_root_vdev->vdev_child[v];
6363 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
6370 zdb_nicenum(vdev_indirect_mapping_num_entries(vim),
6371 mem, vdev_indirect_mapping_size(vim));
6373 (void) printf("\tindirect vdev id %llu has %llu segments "
6375 (longlong_t)vd->vdev_id,
6376 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem);
6379 if (dump_opt['b'] >= 2) {
6381 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
6382 "\t avg\t comp\t%%Total\tType\n");
6384 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
6385 char csize[32], lsize[32], psize[32], asize[32];
6386 char avg[32], gang[32];
6387 const char *typename;
6389 /* make sure nicenum has enough space */
6390 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
6391 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
6392 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
6393 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
6394 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
6395 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
6397 if (t < DMU_OT_NUMTYPES)
6398 typename = dmu_ot[t].ot_name;
6400 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
6402 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
6403 (void) printf("%6s\t%5s\t%5s\t%5s"
6404 "\t%5s\t%5s\t%6s\t%s\n",
6416 for (l = ZB_TOTAL - 1; l >= -1; l--) {
6417 level = (l == -1 ? ZB_TOTAL : l);
6418 zb = &zcb.zcb_type[level][t];
6420 if (zb->zb_asize == 0)
6423 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
6426 if (level == 0 && zb->zb_asize ==
6427 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
6430 zdb_nicenum(zb->zb_count, csize,
6432 zdb_nicenum(zb->zb_lsize, lsize,
6434 zdb_nicenum(zb->zb_psize, psize,
6436 zdb_nicenum(zb->zb_asize, asize,
6438 zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
6440 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
6442 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
6444 csize, lsize, psize, asize, avg,
6445 (double)zb->zb_lsize / zb->zb_psize,
6446 100.0 * zb->zb_asize / tzb->zb_asize);
6448 if (level == ZB_TOTAL)
6449 (void) printf("%s\n", typename);
6451 (void) printf(" L%d %s\n",
6454 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
6455 (void) printf("\t number of ganged "
6456 "blocks: %s\n", gang);
6459 if (dump_opt['b'] >= 4) {
6460 (void) printf("psize "
6461 "(in 512-byte sectors): "
6462 "number of blocks\n");
6463 dump_histogram(zb->zb_psize_histogram,
6464 PSIZE_HISTO_SIZE, 0);
6469 /* Output a table summarizing block sizes in the pool */
6470 if (dump_opt['b'] >= 2) {
6471 dump_size_histograms(&zcb);
6475 (void) printf("\n");
6480 if (zcb.zcb_haderrors)
6486 typedef struct zdb_ddt_entry {
6488 uint64_t zdde_ref_blocks;
6489 uint64_t zdde_ref_lsize;
6490 uint64_t zdde_ref_psize;
6491 uint64_t zdde_ref_dsize;
6492 avl_node_t zdde_node;
6497 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
6498 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
6500 avl_tree_t *t = arg;
6502 zdb_ddt_entry_t *zdde, zdde_search;
6504 if (zb->zb_level == ZB_DNODE_LEVEL || BP_IS_HOLE(bp) ||
6508 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
6509 (void) printf("traversing objset %llu, %llu objects, "
6510 "%lu blocks so far\n",
6511 (u_longlong_t)zb->zb_objset,
6512 (u_longlong_t)BP_GET_FILL(bp),
6516 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
6517 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
6520 ddt_key_fill(&zdde_search.zdde_key, bp);
6522 zdde = avl_find(t, &zdde_search, &where);
6525 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
6526 zdde->zdde_key = zdde_search.zdde_key;
6527 avl_insert(t, zdde, where);
6530 zdde->zdde_ref_blocks += 1;
6531 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
6532 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
6533 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
6539 dump_simulated_ddt(spa_t *spa)
6542 void *cookie = NULL;
6543 zdb_ddt_entry_t *zdde;
6544 ddt_histogram_t ddh_total;
6545 ddt_stat_t dds_total;
6547 bzero(&ddh_total, sizeof (ddh_total));
6548 bzero(&dds_total, sizeof (dds_total));
6549 avl_create(&t, ddt_entry_compare,
6550 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
6552 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
6554 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA |
6555 TRAVERSE_NO_DECRYPT, zdb_ddt_add_cb, &t);
6557 spa_config_exit(spa, SCL_CONFIG, FTAG);
6559 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
6561 uint64_t refcnt = zdde->zdde_ref_blocks;
6562 ASSERT(refcnt != 0);
6564 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
6565 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
6566 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
6567 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
6569 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
6570 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
6571 dds.dds_ref_psize = zdde->zdde_ref_psize;
6572 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
6574 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
6577 umem_free(zdde, sizeof (*zdde));
6582 ddt_histogram_stat(&dds_total, &ddh_total);
6584 (void) printf("Simulated DDT histogram:\n");
6586 zpool_dump_ddt(&dds_total, &ddh_total);
6588 dump_dedup_ratio(&dds_total);
6592 verify_device_removal_feature_counts(spa_t *spa)
6594 uint64_t dr_feature_refcount = 0;
6595 uint64_t oc_feature_refcount = 0;
6596 uint64_t indirect_vdev_count = 0;
6597 uint64_t precise_vdev_count = 0;
6598 uint64_t obsolete_counts_object_count = 0;
6599 uint64_t obsolete_sm_count = 0;
6600 uint64_t obsolete_counts_count = 0;
6601 uint64_t scip_count = 0;
6602 uint64_t obsolete_bpobj_count = 0;
6605 spa_condensing_indirect_phys_t *scip =
6606 &spa->spa_condensing_indirect_phys;
6607 if (scip->scip_next_mapping_object != 0) {
6608 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev];
6609 ASSERT(scip->scip_prev_obsolete_sm_object != 0);
6610 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops);
6612 (void) printf("Condensing indirect vdev %llu: new mapping "
6613 "object %llu, prev obsolete sm %llu\n",
6614 (u_longlong_t)scip->scip_vdev,
6615 (u_longlong_t)scip->scip_next_mapping_object,
6616 (u_longlong_t)scip->scip_prev_obsolete_sm_object);
6617 if (scip->scip_prev_obsolete_sm_object != 0) {
6618 space_map_t *prev_obsolete_sm = NULL;
6619 VERIFY0(space_map_open(&prev_obsolete_sm,
6620 spa->spa_meta_objset,
6621 scip->scip_prev_obsolete_sm_object,
6622 0, vd->vdev_asize, 0));
6623 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm);
6624 (void) printf("\n");
6625 space_map_close(prev_obsolete_sm);
6631 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) {
6632 vdev_t *vd = spa->spa_root_vdev->vdev_child[i];
6633 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
6635 if (vic->vic_mapping_object != 0) {
6636 ASSERT(vd->vdev_ops == &vdev_indirect_ops ||
6638 indirect_vdev_count++;
6640 if (vd->vdev_indirect_mapping->vim_havecounts) {
6641 obsolete_counts_count++;
6645 boolean_t are_precise;
6646 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise));
6648 ASSERT(vic->vic_mapping_object != 0);
6649 precise_vdev_count++;
6652 uint64_t obsolete_sm_object;
6653 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object));
6654 if (obsolete_sm_object != 0) {
6655 ASSERT(vic->vic_mapping_object != 0);
6656 obsolete_sm_count++;
6660 (void) feature_get_refcount(spa,
6661 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL],
6662 &dr_feature_refcount);
6663 (void) feature_get_refcount(spa,
6664 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS],
6665 &oc_feature_refcount);
6667 if (dr_feature_refcount != indirect_vdev_count) {
6669 (void) printf("Number of indirect vdevs (%llu) " \
6670 "does not match feature count (%llu)\n",
6671 (u_longlong_t)indirect_vdev_count,
6672 (u_longlong_t)dr_feature_refcount);
6674 (void) printf("Verified device_removal feature refcount " \
6675 "of %llu is correct\n",
6676 (u_longlong_t)dr_feature_refcount);
6679 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT,
6680 DMU_POOL_OBSOLETE_BPOBJ) == 0) {
6681 obsolete_bpobj_count++;
6685 obsolete_counts_object_count = precise_vdev_count;
6686 obsolete_counts_object_count += obsolete_sm_count;
6687 obsolete_counts_object_count += obsolete_counts_count;
6688 obsolete_counts_object_count += scip_count;
6689 obsolete_counts_object_count += obsolete_bpobj_count;
6690 obsolete_counts_object_count += remap_deadlist_count;
6692 if (oc_feature_refcount != obsolete_counts_object_count) {
6694 (void) printf("Number of obsolete counts objects (%llu) " \
6695 "does not match feature count (%llu)\n",
6696 (u_longlong_t)obsolete_counts_object_count,
6697 (u_longlong_t)oc_feature_refcount);
6698 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu "
6699 "ob:%llu rd:%llu\n",
6700 (u_longlong_t)precise_vdev_count,
6701 (u_longlong_t)obsolete_sm_count,
6702 (u_longlong_t)obsolete_counts_count,
6703 (u_longlong_t)scip_count,
6704 (u_longlong_t)obsolete_bpobj_count,
6705 (u_longlong_t)remap_deadlist_count);
6707 (void) printf("Verified indirect_refcount feature refcount " \
6708 "of %llu is correct\n",
6709 (u_longlong_t)oc_feature_refcount);
6715 zdb_set_skip_mmp(char *target)
6720 * Disable the activity check to allow examination of
6723 mutex_enter(&spa_namespace_lock);
6724 if ((spa = spa_lookup(target)) != NULL) {
6725 spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP;
6727 mutex_exit(&spa_namespace_lock);
6730 #define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE"
6732 * Import the checkpointed state of the pool specified by the target
6733 * parameter as readonly. The function also accepts a pool config
6734 * as an optional parameter, else it attempts to infer the config by
6735 * the name of the target pool.
6737 * Note that the checkpointed state's pool name will be the name of
6738 * the original pool with the above suffix appended to it. In addition,
6739 * if the target is not a pool name (e.g. a path to a dataset) then
6740 * the new_path parameter is populated with the updated path to
6741 * reflect the fact that we are looking into the checkpointed state.
6743 * The function returns a newly-allocated copy of the name of the
6744 * pool containing the checkpointed state. When this copy is no
6745 * longer needed it should be freed with free(3C). Same thing
6746 * applies to the new_path parameter if allocated.
6749 import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path)
6752 char *poolname, *bogus_name = NULL;
6754 /* If the target is not a pool, the extract the pool name */
6755 char *path_start = strchr(target, '/');
6756 if (path_start != NULL) {
6757 size_t poolname_len = path_start - target;
6758 poolname = strndup(target, poolname_len);
6764 zdb_set_skip_mmp(poolname);
6765 error = spa_get_stats(poolname, &cfg, NULL, 0);
6767 fatal("Tried to read config of pool \"%s\" but "
6768 "spa_get_stats() failed with error %d\n",
6773 if (asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX) == -1)
6775 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name);
6777 error = spa_import(bogus_name, cfg, NULL,
6778 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT |
6779 ZFS_IMPORT_SKIP_MMP);
6781 fatal("Tried to import pool \"%s\" but spa_import() failed "
6782 "with error %d\n", bogus_name, error);
6785 if (new_path != NULL && path_start != NULL) {
6786 if (asprintf(new_path, "%s%s", bogus_name, path_start) == -1) {
6787 if (path_start != NULL)
6793 if (target != poolname)
6796 return (bogus_name);
6799 typedef struct verify_checkpoint_sm_entry_cb_arg {
6802 /* the following fields are only used for printing progress */
6803 uint64_t vcsec_entryid;
6804 uint64_t vcsec_num_entries;
6805 } verify_checkpoint_sm_entry_cb_arg_t;
6807 #define ENTRIES_PER_PROGRESS_UPDATE 10000
6810 verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg)
6812 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg;
6813 vdev_t *vd = vcsec->vcsec_vd;
6814 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift];
6815 uint64_t end = sme->sme_offset + sme->sme_run;
6817 ASSERT(sme->sme_type == SM_FREE);
6819 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) {
6820 (void) fprintf(stderr,
6821 "\rverifying vdev %llu, space map entry %llu of %llu ...",
6822 (longlong_t)vd->vdev_id,
6823 (longlong_t)vcsec->vcsec_entryid,
6824 (longlong_t)vcsec->vcsec_num_entries);
6826 vcsec->vcsec_entryid++;
6829 * See comment in checkpoint_sm_exclude_entry_cb()
6831 VERIFY3U(sme->sme_offset, >=, ms->ms_start);
6832 VERIFY3U(end, <=, ms->ms_start + ms->ms_size);
6835 * The entries in the vdev_checkpoint_sm should be marked as
6836 * allocated in the checkpointed state of the pool, therefore
6837 * their respective ms_allocateable trees should not contain them.
6839 mutex_enter(&ms->ms_lock);
6840 range_tree_verify_not_present(ms->ms_allocatable,
6841 sme->sme_offset, sme->sme_run);
6842 mutex_exit(&ms->ms_lock);
6848 * Verify that all segments in the vdev_checkpoint_sm are allocated
6849 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's
6852 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of
6853 * each vdev in the current state of the pool to the metaslab space maps
6854 * (ms_sm) of the checkpointed state of the pool.
6856 * Note that the function changes the state of the ms_allocatable
6857 * trees of the current spa_t. The entries of these ms_allocatable
6858 * trees are cleared out and then repopulated from with the free
6859 * entries of their respective ms_sm space maps.
6862 verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current)
6864 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev;
6865 vdev_t *current_rvd = current->spa_root_vdev;
6867 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE);
6869 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) {
6870 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c];
6871 vdev_t *current_vd = current_rvd->vdev_child[c];
6873 space_map_t *checkpoint_sm = NULL;
6874 uint64_t checkpoint_sm_obj;
6876 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) {
6878 * Since we don't allow device removal in a pool
6879 * that has a checkpoint, we expect that all removed
6880 * vdevs were removed from the pool before the
6883 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops);
6888 * If the checkpoint space map doesn't exist, then nothing
6889 * here is checkpointed so there's nothing to verify.
6891 if (current_vd->vdev_top_zap == 0 ||
6892 zap_contains(spa_meta_objset(current),
6893 current_vd->vdev_top_zap,
6894 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
6897 VERIFY0(zap_lookup(spa_meta_objset(current),
6898 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM,
6899 sizeof (uint64_t), 1, &checkpoint_sm_obj));
6901 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current),
6902 checkpoint_sm_obj, 0, current_vd->vdev_asize,
6903 current_vd->vdev_ashift));
6905 verify_checkpoint_sm_entry_cb_arg_t vcsec;
6906 vcsec.vcsec_vd = ckpoint_vd;
6907 vcsec.vcsec_entryid = 0;
6908 vcsec.vcsec_num_entries =
6909 space_map_length(checkpoint_sm) / sizeof (uint64_t);
6910 VERIFY0(space_map_iterate(checkpoint_sm,
6911 space_map_length(checkpoint_sm),
6912 verify_checkpoint_sm_entry_cb, &vcsec));
6913 if (dump_opt['m'] > 3)
6914 dump_spacemap(current->spa_meta_objset, checkpoint_sm);
6915 space_map_close(checkpoint_sm);
6919 * If we've added vdevs since we took the checkpoint, ensure
6920 * that their checkpoint space maps are empty.
6922 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) {
6923 for (uint64_t c = ckpoint_rvd->vdev_children;
6924 c < current_rvd->vdev_children; c++) {
6925 vdev_t *current_vd = current_rvd->vdev_child[c];
6926 ASSERT3P(current_vd->vdev_checkpoint_sm, ==, NULL);
6930 /* for cleaner progress output */
6931 (void) fprintf(stderr, "\n");
6935 * Verifies that all space that's allocated in the checkpoint is
6936 * still allocated in the current version, by checking that everything
6937 * in checkpoint's ms_allocatable (which is actually allocated, not
6938 * allocatable/free) is not present in current's ms_allocatable.
6940 * Note that the function changes the state of the ms_allocatable
6941 * trees of both spas when called. The entries of all ms_allocatable
6942 * trees are cleared out and then repopulated from their respective
6943 * ms_sm space maps. In the checkpointed state we load the allocated
6944 * entries, and in the current state we load the free entries.
6947 verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current)
6949 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev;
6950 vdev_t *current_rvd = current->spa_root_vdev;
6952 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC);
6953 load_concrete_ms_allocatable_trees(current, SM_FREE);
6955 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) {
6956 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i];
6957 vdev_t *current_vd = current_rvd->vdev_child[i];
6959 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) {
6961 * See comment in verify_checkpoint_vdev_spacemaps()
6963 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops);
6967 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) {
6968 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m];
6969 metaslab_t *current_msp = current_vd->vdev_ms[m];
6971 (void) fprintf(stderr,
6972 "\rverifying vdev %llu of %llu, "
6973 "metaslab %llu of %llu ...",
6974 (longlong_t)current_vd->vdev_id,
6975 (longlong_t)current_rvd->vdev_children,
6976 (longlong_t)current_vd->vdev_ms[m]->ms_id,
6977 (longlong_t)current_vd->vdev_ms_count);
6980 * We walk through the ms_allocatable trees that
6981 * are loaded with the allocated blocks from the
6982 * ms_sm spacemaps of the checkpoint. For each
6983 * one of these ranges we ensure that none of them
6984 * exists in the ms_allocatable trees of the
6985 * current state which are loaded with the ranges
6986 * that are currently free.
6988 * This way we ensure that none of the blocks that
6989 * are part of the checkpoint were freed by mistake.
6991 range_tree_walk(ckpoint_msp->ms_allocatable,
6992 (range_tree_func_t *)range_tree_verify_not_present,
6993 current_msp->ms_allocatable);
6997 /* for cleaner progress output */
6998 (void) fprintf(stderr, "\n");
7002 verify_checkpoint_blocks(spa_t *spa)
7004 ASSERT(!dump_opt['L']);
7006 spa_t *checkpoint_spa;
7007 char *checkpoint_pool;
7008 nvlist_t *config = NULL;
7012 * We import the checkpointed state of the pool (under a different
7013 * name) so we can do verification on it against the current state
7016 checkpoint_pool = import_checkpointed_state(spa->spa_name, config,
7018 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0);
7020 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG);
7022 fatal("Tried to open pool \"%s\" but spa_open() failed with "
7023 "error %d\n", checkpoint_pool, error);
7027 * Ensure that ranges in the checkpoint space maps of each vdev
7028 * are allocated according to the checkpointed state's metaslab
7031 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa);
7034 * Ensure that allocated ranges in the checkpoint's metaslab
7035 * space maps remain allocated in the metaslab space maps of
7036 * the current state.
7038 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa);
7041 * Once we are done, we get rid of the checkpointed state.
7043 spa_close(checkpoint_spa, FTAG);
7044 free(checkpoint_pool);
7048 dump_leftover_checkpoint_blocks(spa_t *spa)
7050 vdev_t *rvd = spa->spa_root_vdev;
7052 for (uint64_t i = 0; i < rvd->vdev_children; i++) {
7053 vdev_t *vd = rvd->vdev_child[i];
7055 space_map_t *checkpoint_sm = NULL;
7056 uint64_t checkpoint_sm_obj;
7058 if (vd->vdev_top_zap == 0)
7061 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap,
7062 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
7065 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap,
7066 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM,
7067 sizeof (uint64_t), 1, &checkpoint_sm_obj));
7069 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa),
7070 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift));
7071 dump_spacemap(spa->spa_meta_objset, checkpoint_sm);
7072 space_map_close(checkpoint_sm);
7077 verify_checkpoint(spa_t *spa)
7079 uberblock_t checkpoint;
7082 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT))
7085 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
7086 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t),
7087 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint);
7089 if (error == ENOENT && !dump_opt['L']) {
7091 * If the feature is active but the uberblock is missing
7092 * then we must be in the middle of discarding the
7095 (void) printf("\nPartially discarded checkpoint "
7097 if (dump_opt['m'] > 3)
7098 dump_leftover_checkpoint_blocks(spa);
7100 } else if (error != 0) {
7101 (void) printf("lookup error %d when looking for "
7102 "checkpointed uberblock in MOS\n", error);
7105 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n");
7107 if (checkpoint.ub_checkpoint_txg == 0) {
7108 (void) printf("\nub_checkpoint_txg not set in checkpointed "
7113 if (error == 0 && !dump_opt['L'])
7114 verify_checkpoint_blocks(spa);
7121 mos_leaks_cb(void *arg, uint64_t start, uint64_t size)
7123 for (uint64_t i = start; i < size; i++) {
7124 (void) printf("MOS object %llu referenced but not allocated\n",
7130 mos_obj_refd(uint64_t obj)
7132 if (obj != 0 && mos_refd_objs != NULL)
7133 range_tree_add(mos_refd_objs, obj, 1);
7137 * Call on a MOS object that may already have been referenced.
7140 mos_obj_refd_multiple(uint64_t obj)
7142 if (obj != 0 && mos_refd_objs != NULL &&
7143 !range_tree_contains(mos_refd_objs, obj, 1))
7144 range_tree_add(mos_refd_objs, obj, 1);
7148 mos_leak_vdev_top_zap(vdev_t *vd)
7150 uint64_t ms_flush_data_obj;
7151 int error = zap_lookup(spa_meta_objset(vd->vdev_spa),
7152 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS,
7153 sizeof (ms_flush_data_obj), 1, &ms_flush_data_obj);
7154 if (error == ENOENT)
7158 mos_obj_refd(ms_flush_data_obj);
7162 mos_leak_vdev(vdev_t *vd)
7164 mos_obj_refd(vd->vdev_dtl_object);
7165 mos_obj_refd(vd->vdev_ms_array);
7166 mos_obj_refd(vd->vdev_indirect_config.vic_births_object);
7167 mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object);
7168 mos_obj_refd(vd->vdev_leaf_zap);
7169 if (vd->vdev_checkpoint_sm != NULL)
7170 mos_obj_refd(vd->vdev_checkpoint_sm->sm_object);
7171 if (vd->vdev_indirect_mapping != NULL) {
7172 mos_obj_refd(vd->vdev_indirect_mapping->
7173 vim_phys->vimp_counts_object);
7175 if (vd->vdev_obsolete_sm != NULL)
7176 mos_obj_refd(vd->vdev_obsolete_sm->sm_object);
7178 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
7179 metaslab_t *ms = vd->vdev_ms[m];
7180 mos_obj_refd(space_map_object(ms->ms_sm));
7183 if (vd->vdev_top_zap != 0) {
7184 mos_obj_refd(vd->vdev_top_zap);
7185 mos_leak_vdev_top_zap(vd);
7188 for (uint64_t c = 0; c < vd->vdev_children; c++) {
7189 mos_leak_vdev(vd->vdev_child[c]);
7194 mos_leak_log_spacemaps(spa_t *spa)
7196 uint64_t spacemap_zap;
7197 int error = zap_lookup(spa_meta_objset(spa),
7198 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_LOG_SPACEMAP_ZAP,
7199 sizeof (spacemap_zap), 1, &spacemap_zap);
7200 if (error == ENOENT)
7204 mos_obj_refd(spacemap_zap);
7205 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg);
7206 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls))
7207 mos_obj_refd(sls->sls_sm_obj);
7211 dump_mos_leaks(spa_t *spa)
7214 objset_t *mos = spa->spa_meta_objset;
7215 dsl_pool_t *dp = spa->spa_dsl_pool;
7217 /* Visit and mark all referenced objects in the MOS */
7219 mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT);
7220 mos_obj_refd(spa->spa_pool_props_object);
7221 mos_obj_refd(spa->spa_config_object);
7222 mos_obj_refd(spa->spa_ddt_stat_object);
7223 mos_obj_refd(spa->spa_feat_desc_obj);
7224 mos_obj_refd(spa->spa_feat_enabled_txg_obj);
7225 mos_obj_refd(spa->spa_feat_for_read_obj);
7226 mos_obj_refd(spa->spa_feat_for_write_obj);
7227 mos_obj_refd(spa->spa_history);
7228 mos_obj_refd(spa->spa_errlog_last);
7229 mos_obj_refd(spa->spa_errlog_scrub);
7230 mos_obj_refd(spa->spa_all_vdev_zaps);
7231 mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj);
7232 mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj);
7233 mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj);
7234 bpobj_count_refd(&spa->spa_deferred_bpobj);
7235 mos_obj_refd(dp->dp_empty_bpobj);
7236 bpobj_count_refd(&dp->dp_obsolete_bpobj);
7237 bpobj_count_refd(&dp->dp_free_bpobj);
7238 mos_obj_refd(spa->spa_l2cache.sav_object);
7239 mos_obj_refd(spa->spa_spares.sav_object);
7241 if (spa->spa_syncing_log_sm != NULL)
7242 mos_obj_refd(spa->spa_syncing_log_sm->sm_object);
7243 mos_leak_log_spacemaps(spa);
7245 mos_obj_refd(spa->spa_condensing_indirect_phys.
7246 scip_next_mapping_object);
7247 mos_obj_refd(spa->spa_condensing_indirect_phys.
7248 scip_prev_obsolete_sm_object);
7249 if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) {
7250 vdev_indirect_mapping_t *vim =
7251 vdev_indirect_mapping_open(mos,
7252 spa->spa_condensing_indirect_phys.scip_next_mapping_object);
7253 mos_obj_refd(vim->vim_phys->vimp_counts_object);
7254 vdev_indirect_mapping_close(vim);
7256 deleted_livelists_dump_mos(spa);
7258 if (dp->dp_origin_snap != NULL) {
7261 dsl_pool_config_enter(dp, FTAG);
7262 VERIFY0(dsl_dataset_hold_obj(dp,
7263 dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj,
7265 count_ds_mos_objects(ds);
7266 dump_blkptr_list(&ds->ds_deadlist, "Deadlist");
7267 dsl_dataset_rele(ds, FTAG);
7268 dsl_pool_config_exit(dp, FTAG);
7270 count_ds_mos_objects(dp->dp_origin_snap);
7271 dump_blkptr_list(&dp->dp_origin_snap->ds_deadlist, "Deadlist");
7273 count_dir_mos_objects(dp->dp_mos_dir);
7274 if (dp->dp_free_dir != NULL)
7275 count_dir_mos_objects(dp->dp_free_dir);
7276 if (dp->dp_leak_dir != NULL)
7277 count_dir_mos_objects(dp->dp_leak_dir);
7279 mos_leak_vdev(spa->spa_root_vdev);
7281 for (uint64_t class = 0; class < DDT_CLASSES; class++) {
7282 for (uint64_t type = 0; type < DDT_TYPES; type++) {
7283 for (uint64_t cksum = 0;
7284 cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) {
7285 ddt_t *ddt = spa->spa_ddt[cksum];
7286 mos_obj_refd(ddt->ddt_object[type][class]);
7292 * Visit all allocated objects and make sure they are referenced.
7294 uint64_t object = 0;
7295 while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) {
7296 if (range_tree_contains(mos_refd_objs, object, 1)) {
7297 range_tree_remove(mos_refd_objs, object, 1);
7299 dmu_object_info_t doi;
7301 dmu_object_info(mos, object, &doi);
7302 if (doi.doi_type & DMU_OT_NEWTYPE) {
7303 dmu_object_byteswap_t bswap =
7304 DMU_OT_BYTESWAP(doi.doi_type);
7305 name = dmu_ot_byteswap[bswap].ob_name;
7307 name = dmu_ot[doi.doi_type].ot_name;
7310 (void) printf("MOS object %llu (%s) leaked\n",
7311 (u_longlong_t)object, name);
7315 (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL);
7316 if (!range_tree_is_empty(mos_refd_objs))
7318 range_tree_vacate(mos_refd_objs, NULL, NULL);
7319 range_tree_destroy(mos_refd_objs);
7323 typedef struct log_sm_obsolete_stats_arg {
7324 uint64_t lsos_current_txg;
7326 uint64_t lsos_total_entries;
7327 uint64_t lsos_valid_entries;
7329 uint64_t lsos_sm_entries;
7330 uint64_t lsos_valid_sm_entries;
7331 } log_sm_obsolete_stats_arg_t;
7334 log_spacemap_obsolete_stats_cb(spa_t *spa, space_map_entry_t *sme,
7335 uint64_t txg, void *arg)
7337 log_sm_obsolete_stats_arg_t *lsos = arg;
7339 uint64_t offset = sme->sme_offset;
7340 uint64_t vdev_id = sme->sme_vdev;
7342 if (lsos->lsos_current_txg == 0) {
7343 /* this is the first log */
7344 lsos->lsos_current_txg = txg;
7345 } else if (lsos->lsos_current_txg < txg) {
7346 /* we just changed log - print stats and reset */
7347 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n",
7348 (u_longlong_t)lsos->lsos_valid_sm_entries,
7349 (u_longlong_t)lsos->lsos_sm_entries,
7350 (u_longlong_t)lsos->lsos_current_txg);
7351 lsos->lsos_valid_sm_entries = 0;
7352 lsos->lsos_sm_entries = 0;
7353 lsos->lsos_current_txg = txg;
7355 ASSERT3U(lsos->lsos_current_txg, ==, txg);
7357 lsos->lsos_sm_entries++;
7358 lsos->lsos_total_entries++;
7360 vdev_t *vd = vdev_lookup_top(spa, vdev_id);
7361 if (!vdev_is_concrete(vd))
7364 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift];
7365 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE);
7367 if (txg < metaslab_unflushed_txg(ms))
7369 lsos->lsos_valid_sm_entries++;
7370 lsos->lsos_valid_entries++;
7375 dump_log_spacemap_obsolete_stats(spa_t *spa)
7377 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP))
7380 log_sm_obsolete_stats_arg_t lsos;
7381 bzero(&lsos, sizeof (lsos));
7383 (void) printf("Log Space Map Obsolete Entry Statistics:\n");
7385 iterate_through_spacemap_logs(spa,
7386 log_spacemap_obsolete_stats_cb, &lsos);
7388 /* print stats for latest log */
7389 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n",
7390 (u_longlong_t)lsos.lsos_valid_sm_entries,
7391 (u_longlong_t)lsos.lsos_sm_entries,
7392 (u_longlong_t)lsos.lsos_current_txg);
7394 (void) printf("%-8llu valid entries out of %-8llu - total\n\n",
7395 (u_longlong_t)lsos.lsos_valid_entries,
7396 (u_longlong_t)lsos.lsos_total_entries);
7400 dump_zpool(spa_t *spa)
7402 dsl_pool_t *dp = spa_get_dsl(spa);
7405 if (dump_opt['y']) {
7406 livelist_metaslab_validate(spa);
7409 if (dump_opt['S']) {
7410 dump_simulated_ddt(spa);
7414 if (!dump_opt['e'] && dump_opt['C'] > 1) {
7415 (void) printf("\nCached configuration:\n");
7416 dump_nvlist(spa->spa_config, 8);
7423 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
7428 if (dump_opt['d'] > 2 || dump_opt['m'])
7429 dump_metaslabs(spa);
7431 dump_metaslab_groups(spa);
7432 if (dump_opt['d'] > 2 || dump_opt['m']) {
7433 dump_log_spacemaps(spa);
7434 dump_log_spacemap_obsolete_stats(spa);
7437 if (dump_opt['d'] || dump_opt['i']) {
7439 mos_refd_objs = range_tree_create(NULL, RANGE_SEG64, NULL, 0,
7441 dump_objset(dp->dp_meta_objset);
7443 if (dump_opt['d'] >= 3) {
7444 dsl_pool_t *dp = spa->spa_dsl_pool;
7445 dump_full_bpobj(&spa->spa_deferred_bpobj,
7446 "Deferred frees", 0);
7447 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
7448 dump_full_bpobj(&dp->dp_free_bpobj,
7449 "Pool snapshot frees", 0);
7451 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
7452 ASSERT(spa_feature_is_enabled(spa,
7453 SPA_FEATURE_DEVICE_REMOVAL));
7454 dump_full_bpobj(&dp->dp_obsolete_bpobj,
7455 "Pool obsolete blocks", 0);
7458 if (spa_feature_is_active(spa,
7459 SPA_FEATURE_ASYNC_DESTROY)) {
7460 dump_bptree(spa->spa_meta_objset,
7462 "Pool dataset frees");
7464 dump_dtl(spa->spa_root_vdev, 0);
7467 for (spa_feature_t f = 0; f < SPA_FEATURES; f++)
7468 global_feature_count[f] = UINT64_MAX;
7469 global_feature_count[SPA_FEATURE_REDACTION_BOOKMARKS] = 0;
7470 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN] = 0;
7471 global_feature_count[SPA_FEATURE_LIVELIST] = 0;
7473 (void) dmu_objset_find(spa_name(spa), dump_one_objset,
7474 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
7476 if (rc == 0 && !dump_opt['L'])
7477 rc = dump_mos_leaks(spa);
7479 for (f = 0; f < SPA_FEATURES; f++) {
7483 if (!(spa_feature_table[f].fi_flags &
7484 ZFEATURE_FLAG_PER_DATASET)) {
7485 if (global_feature_count[f] == UINT64_MAX)
7487 if (!spa_feature_is_enabled(spa, f)) {
7488 ASSERT0(global_feature_count[f]);
7491 arr = global_feature_count;
7493 if (!spa_feature_is_enabled(spa, f)) {
7494 ASSERT0(dataset_feature_count[f]);
7497 arr = dataset_feature_count;
7499 if (feature_get_refcount(spa, &spa_feature_table[f],
7500 &refcount) == ENOTSUP)
7502 if (arr[f] != refcount) {
7503 (void) printf("%s feature refcount mismatch: "
7504 "%lld consumers != %lld refcount\n",
7505 spa_feature_table[f].fi_uname,
7506 (longlong_t)arr[f], (longlong_t)refcount);
7509 (void) printf("Verified %s feature refcount "
7510 "of %llu is correct\n",
7511 spa_feature_table[f].fi_uname,
7512 (longlong_t)refcount);
7517 rc = verify_device_removal_feature_counts(spa);
7520 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
7521 rc = dump_block_stats(spa);
7524 rc = verify_spacemap_refcounts(spa);
7527 show_pool_stats(spa);
7533 rc = verify_checkpoint(spa);
7536 dump_debug_buffer();
7541 #define ZDB_FLAG_CHECKSUM 0x0001
7542 #define ZDB_FLAG_DECOMPRESS 0x0002
7543 #define ZDB_FLAG_BSWAP 0x0004
7544 #define ZDB_FLAG_GBH 0x0008
7545 #define ZDB_FLAG_INDIRECT 0x0010
7546 #define ZDB_FLAG_RAW 0x0020
7547 #define ZDB_FLAG_PRINT_BLKPTR 0x0040
7548 #define ZDB_FLAG_VERBOSE 0x0080
7550 static int flagbits[256];
7551 static char flagbitstr[16];
7554 zdb_print_blkptr(const blkptr_t *bp, int flags)
7556 char blkbuf[BP_SPRINTF_LEN];
7558 if (flags & ZDB_FLAG_BSWAP)
7559 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
7561 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
7562 (void) printf("%s\n", blkbuf);
7566 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
7570 for (i = 0; i < nbps; i++)
7571 zdb_print_blkptr(&bp[i], flags);
7575 zdb_dump_gbh(void *buf, int flags)
7577 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
7581 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
7583 if (flags & ZDB_FLAG_BSWAP)
7584 byteswap_uint64_array(buf, size);
7585 VERIFY(write(fileno(stdout), buf, size) == size);
7589 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
7591 uint64_t *d = (uint64_t *)buf;
7592 unsigned nwords = size / sizeof (uint64_t);
7593 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
7600 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
7602 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
7604 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
7606 #ifdef _LITTLE_ENDIAN
7607 /* correct the endianness */
7608 do_bswap = !do_bswap;
7610 for (i = 0; i < nwords; i += 2) {
7611 (void) printf("%06llx: %016llx %016llx ",
7612 (u_longlong_t)(i * sizeof (uint64_t)),
7613 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
7614 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
7617 for (j = 0; j < 2 * sizeof (uint64_t); j++)
7618 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
7619 (void) printf("\n");
7624 * There are two acceptable formats:
7625 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
7626 * child[.child]* - For example: 0.1.1
7628 * The second form can be used to specify arbitrary vdevs anywhere
7629 * in the hierarchy. For example, in a pool with a mirror of
7630 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
7633 zdb_vdev_lookup(vdev_t *vdev, const char *path)
7641 /* First, assume the x.x.x.x format */
7642 i = strtoul(path, &s, 10);
7643 if (s == path || (s && *s != '.' && *s != '\0'))
7645 if (i >= vdev->vdev_children)
7648 vdev = vdev->vdev_child[i];
7649 if (s && *s == '\0')
7651 return (zdb_vdev_lookup(vdev, s+1));
7654 for (i = 0; i < vdev->vdev_children; i++) {
7655 vdev_t *vc = vdev->vdev_child[i];
7657 if (vc->vdev_path == NULL) {
7658 vc = zdb_vdev_lookup(vc, path);
7665 p = strrchr(vc->vdev_path, '/');
7666 p = p ? p + 1 : vc->vdev_path;
7667 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
7669 if (strcmp(vc->vdev_path, path) == 0)
7671 if (strcmp(p, path) == 0)
7673 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
7681 name_from_objset_id(spa_t *spa, uint64_t objset_id, char *outstr)
7685 dsl_pool_config_enter(spa->spa_dsl_pool, FTAG);
7686 int error = dsl_dataset_hold_obj(spa->spa_dsl_pool, objset_id,
7689 (void) fprintf(stderr, "failed to hold objset %llu: %s\n",
7690 (u_longlong_t)objset_id, strerror(error));
7691 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG);
7694 dsl_dataset_name(ds, outstr);
7695 dsl_dataset_rele(ds, NULL);
7696 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG);
7701 zdb_parse_block_sizes(char *sizes, uint64_t *lsize, uint64_t *psize)
7708 s0 = strtok(sizes, "/");
7711 s1 = strtok(NULL, "/");
7712 *lsize = strtoull(s0, NULL, 16);
7713 *psize = s1 ? strtoull(s1, NULL, 16) : *lsize;
7714 return (*lsize >= *psize && *psize > 0);
7717 #define ZIO_COMPRESS_MASK(alg) (1ULL << (ZIO_COMPRESS_##alg))
7720 zdb_decompress_block(abd_t *pabd, void *buf, void *lbuf, uint64_t lsize,
7721 uint64_t psize, int flags)
7723 boolean_t exceeded = B_FALSE;
7725 * We don't know how the data was compressed, so just try
7726 * every decompress function at every inflated blocksize.
7728 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
7729 int cfuncs[ZIO_COMPRESS_FUNCTIONS] = { 0 };
7730 int *cfuncp = cfuncs;
7731 uint64_t maxlsize = SPA_MAXBLOCKSIZE;
7732 uint64_t mask = ZIO_COMPRESS_MASK(ON) | ZIO_COMPRESS_MASK(OFF) |
7733 ZIO_COMPRESS_MASK(INHERIT) | ZIO_COMPRESS_MASK(EMPTY) |
7734 (getenv("ZDB_NO_ZLE") ? ZIO_COMPRESS_MASK(ZLE) : 0);
7735 *cfuncp++ = ZIO_COMPRESS_LZ4;
7736 *cfuncp++ = ZIO_COMPRESS_LZJB;
7737 mask |= ZIO_COMPRESS_MASK(LZ4) | ZIO_COMPRESS_MASK(LZJB);
7738 for (int c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++)
7739 if (((1ULL << c) & mask) == 0)
7743 * On the one hand, with SPA_MAXBLOCKSIZE at 16MB, this
7744 * could take a while and we should let the user know
7745 * we are not stuck. On the other hand, printing progress
7746 * info gets old after a while. User can specify 'v' flag
7747 * to see the progression.
7750 lsize += SPA_MINBLOCKSIZE;
7753 for (; lsize <= maxlsize; lsize += SPA_MINBLOCKSIZE) {
7754 for (cfuncp = cfuncs; *cfuncp; cfuncp++) {
7755 if (flags & ZDB_FLAG_VERBOSE) {
7756 (void) fprintf(stderr,
7757 "Trying %05llx -> %05llx (%s)\n",
7758 (u_longlong_t)psize,
7759 (u_longlong_t)lsize,
7760 zio_compress_table[*cfuncp].\
7765 * We randomize lbuf2, and decompress to both
7766 * lbuf and lbuf2. This way, we will know if
7767 * decompression fill exactly to lsize.
7769 VERIFY0(random_get_pseudo_bytes(lbuf2, lsize));
7771 if (zio_decompress_data(*cfuncp, pabd,
7772 lbuf, psize, lsize, NULL) == 0 &&
7773 zio_decompress_data(*cfuncp, pabd,
7774 lbuf2, psize, lsize, NULL) == 0 &&
7775 bcmp(lbuf, lbuf2, lsize) == 0)
7781 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
7783 if (lsize > maxlsize) {
7787 if (*cfuncp == ZIO_COMPRESS_ZLE) {
7788 printf("\nZLE decompression was selected. If you "
7789 "suspect the results are wrong,\ntry avoiding ZLE "
7790 "by setting and exporting ZDB_NO_ZLE=\"true\"\n");
7797 * Read a block from a pool and print it out. The syntax of the
7798 * block descriptor is:
7800 * pool:vdev_specifier:offset:[lsize/]psize[:flags]
7802 * pool - The name of the pool you wish to read from
7803 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
7804 * offset - offset, in hex, in bytes
7805 * size - Amount of data to read, in hex, in bytes
7806 * flags - A string of characters specifying options
7807 * b: Decode a blkptr at given offset within block
7808 * c: Calculate and display checksums
7809 * d: Decompress data before dumping
7810 * e: Byteswap data before dumping
7811 * g: Display data as a gang block header
7812 * i: Display as an indirect block
7813 * r: Dump raw data to stdout
7818 zdb_read_block(char *thing, spa_t *spa)
7820 blkptr_t blk, *bp = &blk;
7821 dva_t *dva = bp->blk_dva;
7823 uint64_t offset = 0, psize = 0, lsize = 0, blkptr_offset = 0;
7828 char *s, *p, *dup, *vdev, *flagstr, *sizes;
7830 boolean_t borrowed = B_FALSE, found = B_FALSE;
7832 dup = strdup(thing);
7833 s = strtok(dup, ":");
7835 s = strtok(NULL, ":");
7836 offset = strtoull(s ? s : "", NULL, 16);
7837 sizes = strtok(NULL, ":");
7838 s = strtok(NULL, ":");
7839 flagstr = strdup(s ? s : "");
7842 if (!zdb_parse_block_sizes(sizes, &lsize, &psize))
7843 s = "invalid size(s)";
7844 if (!IS_P2ALIGNED(psize, DEV_BSIZE) || !IS_P2ALIGNED(lsize, DEV_BSIZE))
7845 s = "size must be a multiple of sector size";
7846 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
7847 s = "offset must be a multiple of sector size";
7849 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
7853 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
7854 for (i = 0; i < strlen(flagstr); i++) {
7855 int bit = flagbits[(uchar_t)flagstr[i]];
7858 (void) printf("***Ignoring flag: %c\n",
7859 (uchar_t)flagstr[i]);
7865 p = &flagstr[i + 1];
7866 if (*p != ':' && *p != '\0') {
7867 int j = 0, nextbit = flagbits[(uchar_t)*p];
7868 char *end, offstr[8] = { 0 };
7869 if ((bit == ZDB_FLAG_PRINT_BLKPTR) &&
7871 /* look ahead to isolate the offset */
7872 while (nextbit == 0 &&
7873 strchr(flagbitstr, *p) == NULL) {
7876 if (i + j > strlen(flagstr))
7879 nextbit = flagbits[(uchar_t)*p];
7881 blkptr_offset = strtoull(offstr, &end,
7884 } else if (nextbit == 0) {
7885 (void) printf("***Ignoring flag arg:"
7886 " '%c'\n", (uchar_t)*p);
7891 if (blkptr_offset % sizeof (blkptr_t)) {
7892 printf("Block pointer offset 0x%llx "
7893 "must be divisible by 0x%x\n",
7894 (longlong_t)blkptr_offset, (int)sizeof (blkptr_t));
7897 if (found == B_FALSE && strlen(flagstr) > 0) {
7898 printf("Invalid flag arg: '%s'\n", flagstr);
7902 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
7904 (void) printf("***Invalid vdev: %s\n", vdev);
7909 (void) fprintf(stderr, "Found vdev: %s\n",
7912 (void) fprintf(stderr, "Found vdev type: %s\n",
7913 vd->vdev_ops->vdev_op_type);
7916 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE);
7917 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
7921 DVA_SET_VDEV(&dva[0], vd->vdev_id);
7922 DVA_SET_OFFSET(&dva[0], offset);
7923 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
7924 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
7926 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
7928 BP_SET_LSIZE(bp, lsize);
7929 BP_SET_PSIZE(bp, psize);
7930 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
7931 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
7932 BP_SET_TYPE(bp, DMU_OT_NONE);
7933 BP_SET_LEVEL(bp, 0);
7934 BP_SET_DEDUP(bp, 0);
7935 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
7937 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
7938 zio = zio_root(spa, NULL, NULL, 0);
7940 if (vd == vd->vdev_top) {
7942 * Treat this as a normal block read.
7944 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
7945 ZIO_PRIORITY_SYNC_READ,
7946 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
7949 * Treat this as a vdev child I/O.
7951 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
7952 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
7953 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_PROPAGATE |
7954 ZIO_FLAG_DONT_RETRY | ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW |
7955 ZIO_FLAG_OPTIONAL, NULL, NULL));
7958 error = zio_wait(zio);
7959 spa_config_exit(spa, SCL_STATE, FTAG);
7962 (void) printf("Read of %s failed, error: %d\n", thing, error);
7966 uint64_t orig_lsize = lsize;
7968 if (flags & ZDB_FLAG_DECOMPRESS) {
7969 boolean_t failed = zdb_decompress_block(pabd, buf, lbuf,
7970 lsize, psize, flags);
7972 (void) printf("Decompress of %s failed\n", thing);
7976 buf = abd_borrow_buf_copy(pabd, lsize);
7980 * Try to detect invalid block pointer. If invalid, try
7983 if ((flags & ZDB_FLAG_PRINT_BLKPTR || flags & ZDB_FLAG_INDIRECT) &&
7984 !(flags & ZDB_FLAG_DECOMPRESS)) {
7985 const blkptr_t *b = (const blkptr_t *)(void *)
7986 ((uintptr_t)buf + (uintptr_t)blkptr_offset);
7987 if (zfs_blkptr_verify(spa, b, B_FALSE, BLK_VERIFY_ONLY) ==
7989 abd_return_buf_copy(pabd, buf, lsize);
7992 boolean_t failed = zdb_decompress_block(pabd, buf,
7993 lbuf, lsize, psize, flags);
7994 b = (const blkptr_t *)(void *)
7995 ((uintptr_t)buf + (uintptr_t)blkptr_offset);
7996 if (failed || zfs_blkptr_verify(spa, b, B_FALSE,
7997 BLK_VERIFY_LOG) == B_FALSE) {
7998 printf("invalid block pointer at this DVA\n");
8004 if (flags & ZDB_FLAG_PRINT_BLKPTR)
8005 zdb_print_blkptr((blkptr_t *)(void *)
8006 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
8007 else if (flags & ZDB_FLAG_RAW)
8008 zdb_dump_block_raw(buf, lsize, flags);
8009 else if (flags & ZDB_FLAG_INDIRECT)
8010 zdb_dump_indirect((blkptr_t *)buf,
8011 orig_lsize / sizeof (blkptr_t), flags);
8012 else if (flags & ZDB_FLAG_GBH)
8013 zdb_dump_gbh(buf, flags);
8015 zdb_dump_block(thing, buf, lsize, flags);
8018 * If :c was specified, iterate through the checksum table to
8019 * calculate and display each checksum for our specified
8022 if ((flags & ZDB_FLAG_CHECKSUM) && !(flags & ZDB_FLAG_RAW) &&
8023 !(flags & ZDB_FLAG_GBH)) {
8025 (void) printf("\n");
8026 for (enum zio_checksum ck = ZIO_CHECKSUM_LABEL;
8027 ck < ZIO_CHECKSUM_FUNCTIONS; ck++) {
8029 if ((zio_checksum_table[ck].ci_flags &
8030 ZCHECKSUM_FLAG_EMBEDDED) ||
8031 ck == ZIO_CHECKSUM_NOPARITY) {
8034 BP_SET_CHECKSUM(bp, ck);
8035 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
8036 czio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL);
8039 if (vd == vd->vdev_top) {
8040 zio_nowait(zio_read(czio, spa, bp, pabd, psize,
8042 ZIO_PRIORITY_SYNC_READ,
8043 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW |
8044 ZIO_FLAG_DONT_RETRY, NULL));
8046 zio_nowait(zio_vdev_child_io(czio, bp, vd,
8047 offset, pabd, psize, ZIO_TYPE_READ,
8048 ZIO_PRIORITY_SYNC_READ,
8049 ZIO_FLAG_DONT_CACHE |
8050 ZIO_FLAG_DONT_PROPAGATE |
8051 ZIO_FLAG_DONT_RETRY |
8052 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW |
8053 ZIO_FLAG_SPECULATIVE |
8054 ZIO_FLAG_OPTIONAL, NULL, NULL));
8056 error = zio_wait(czio);
8057 if (error == 0 || error == ECKSUM) {
8058 zio_t *ck_zio = zio_root(spa, NULL, NULL, 0);
8060 DVA_GET_OFFSET(&bp->blk_dva[0]);
8062 zio_checksum_compute(ck_zio, ck, pabd, lsize);
8063 printf("%12s\tcksum=%llx:%llx:%llx:%llx\n",
8064 zio_checksum_table[ck].ci_name,
8065 (u_longlong_t)bp->blk_cksum.zc_word[0],
8066 (u_longlong_t)bp->blk_cksum.zc_word[1],
8067 (u_longlong_t)bp->blk_cksum.zc_word[2],
8068 (u_longlong_t)bp->blk_cksum.zc_word[3]);
8071 printf("error %d reading block\n", error);
8073 spa_config_exit(spa, SCL_STATE, FTAG);
8078 abd_return_buf_copy(pabd, buf, lsize);
8082 umem_free(lbuf, SPA_MAXBLOCKSIZE);
8089 zdb_embedded_block(char *thing)
8092 unsigned long long *words = (void *)&bp;
8096 bzero(&bp, sizeof (bp));
8097 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
8098 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
8099 words + 0, words + 1, words + 2, words + 3,
8100 words + 4, words + 5, words + 6, words + 7,
8101 words + 8, words + 9, words + 10, words + 11,
8102 words + 12, words + 13, words + 14, words + 15);
8104 (void) fprintf(stderr, "invalid input format\n");
8107 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
8108 buf = malloc(SPA_MAXBLOCKSIZE);
8110 (void) fprintf(stderr, "out of memory\n");
8113 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
8115 (void) fprintf(stderr, "decode failed: %u\n", err);
8118 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
8123 main(int argc, char **argv)
8126 struct rlimit rl = { 1024, 1024 };
8128 objset_t *os = NULL;
8132 char **searchdirs = NULL;
8134 char *target, *target_pool, dsname[ZFS_MAX_DATASET_NAME_LEN];
8135 nvlist_t *policy = NULL;
8136 uint64_t max_txg = UINT64_MAX;
8137 int64_t objset_id = -1;
8138 int flags = ZFS_IMPORT_MISSING_LOG;
8139 int rewind = ZPOOL_NEVER_REWIND;
8140 char *spa_config_path_env, *objset_str;
8141 boolean_t target_is_spa = B_TRUE, dataset_lookup = B_FALSE;
8142 nvlist_t *cfg = NULL;
8144 (void) setrlimit(RLIMIT_NOFILE, &rl);
8145 (void) enable_extended_FILE_stdio(-1, -1);
8147 dprintf_setup(&argc, argv);
8150 * If there is an environment variable SPA_CONFIG_PATH it overrides
8151 * default spa_config_path setting. If -U flag is specified it will
8152 * override this environment variable settings once again.
8154 spa_config_path_env = getenv("SPA_CONFIG_PATH");
8155 if (spa_config_path_env != NULL)
8156 spa_config_path = spa_config_path_env;
8159 * For performance reasons, we set this tunable down. We do so before
8160 * the arg parsing section so that the user can override this value if
8163 zfs_btree_verify_intensity = 3;
8165 while ((c = getopt(argc, argv,
8166 "AbcCdDeEFGhiI:klLmMo:Op:PqRsSt:uU:vVx:XYyZ")) != -1) {
8201 zfs_reconstruct_indirect_combinations_max = INT_MAX;
8202 zfs_deadman_enabled = 0;
8204 /* NB: Sort single match options below. */
8206 max_inflight_bytes = strtoull(optarg, NULL, 0);
8207 if (max_inflight_bytes == 0) {
8208 (void) fprintf(stderr, "maximum number "
8209 "of inflight bytes must be greater "
8215 error = set_global_var(optarg);
8220 if (searchdirs == NULL) {
8221 searchdirs = umem_alloc(sizeof (char *),
8224 char **tmp = umem_alloc((nsearch + 1) *
8225 sizeof (char *), UMEM_NOFAIL);
8226 bcopy(searchdirs, tmp, nsearch *
8228 umem_free(searchdirs,
8229 nsearch * sizeof (char *));
8232 searchdirs[nsearch++] = optarg;
8235 max_txg = strtoull(optarg, NULL, 0);
8236 if (max_txg < TXG_INITIAL) {
8237 (void) fprintf(stderr, "incorrect txg "
8238 "specified: %s\n", optarg);
8243 spa_config_path = optarg;
8244 if (spa_config_path[0] != '/') {
8245 (void) fprintf(stderr,
8246 "cachefile must be an absolute path "
8247 "(i.e. start with a slash)\n");
8255 flags = ZFS_IMPORT_VERBATIM;
8258 vn_dumpdir = optarg;
8266 if (!dump_opt['e'] && searchdirs != NULL) {
8267 (void) fprintf(stderr, "-p option requires use of -e\n");
8270 if (dump_opt['d']) {
8271 /* <pool>[/<dataset | objset id> is accepted */
8272 if (argv[2] && (objset_str = strchr(argv[2], '/')) != NULL &&
8273 objset_str++ != NULL) {
8276 objset_id = strtoull(objset_str, &endptr, 0);
8277 /* dataset 0 is the same as opening the pool */
8278 if (errno == 0 && endptr != objset_str &&
8280 target_is_spa = B_FALSE;
8281 dataset_lookup = B_TRUE;
8282 } else if (objset_id != 0) {
8283 printf("failed to open objset %s "
8284 "%llu %s", objset_str,
8285 (u_longlong_t)objset_id,
8289 /* normal dataset name not an objset ID */
8290 if (endptr == objset_str) {
8298 * ZDB does not typically re-read blocks; therefore limit the ARC
8299 * to 256 MB, which can be used entirely for metadata.
8301 zfs_arc_min = zfs_arc_meta_min = 2ULL << SPA_MAXBLOCKSHIFT;
8302 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
8306 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
8307 * "zdb -b" uses traversal prefetch which uses async reads.
8308 * For good performance, let several of them be active at once.
8310 zfs_vdev_async_read_max_active = 10;
8313 * Disable reference tracking for better performance.
8315 reference_tracking_enable = B_FALSE;
8318 * Do not fail spa_load when spa_load_verify fails. This is needed
8319 * to load non-idle pools.
8321 spa_load_verify_dryrun = B_TRUE;
8323 kernel_init(SPA_MODE_READ);
8326 verbose = MAX(verbose, 1);
8328 for (c = 0; c < 256; c++) {
8329 if (dump_all && strchr("AeEFklLOPRSXy", c) == NULL)
8332 dump_opt[c] += verbose;
8335 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
8336 zfs_recover = (dump_opt['A'] > 1);
8340 if (argc < 2 && dump_opt['R'])
8343 if (dump_opt['E']) {
8346 zdb_embedded_block(argv[0]);
8351 if (!dump_opt['e'] && dump_opt['C']) {
8352 dump_cachefile(spa_config_path);
8359 return (dump_label(argv[0]));
8361 if (dump_opt['O']) {
8364 dump_opt['v'] = verbose + 3;
8365 return (dump_path(argv[0], argv[1]));
8368 if (dump_opt['X'] || dump_opt['F'])
8369 rewind = ZPOOL_DO_REWIND |
8370 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
8372 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
8373 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 ||
8374 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0)
8375 fatal("internal error: %s", strerror(ENOMEM));
8380 if (strpbrk(target, "/@") != NULL) {
8383 target_pool = strdup(target);
8384 *strpbrk(target_pool, "/@") = '\0';
8386 target_is_spa = B_FALSE;
8387 targetlen = strlen(target);
8388 if (targetlen && target[targetlen - 1] == '/')
8389 target[targetlen - 1] = '\0';
8391 target_pool = target;
8394 if (dump_opt['e']) {
8395 importargs_t args = { 0 };
8397 args.paths = nsearch;
8398 args.path = searchdirs;
8399 args.can_be_active = B_TRUE;
8401 error = zpool_find_config(NULL, target_pool, &cfg, &args,
8402 &libzpool_config_ops);
8406 if (nvlist_add_nvlist(cfg,
8407 ZPOOL_LOAD_POLICY, policy) != 0) {
8408 fatal("can't open '%s': %s",
8409 target, strerror(ENOMEM));
8412 if (dump_opt['C'] > 1) {
8413 (void) printf("\nConfiguration for import:\n");
8414 dump_nvlist(cfg, 8);
8418 * Disable the activity check to allow examination of
8421 error = spa_import(target_pool, cfg, NULL,
8422 flags | ZFS_IMPORT_SKIP_MMP);
8427 * import_checkpointed_state makes the assumption that the
8428 * target pool that we pass it is already part of the spa
8429 * namespace. Because of that we need to make sure to call
8430 * it always after the -e option has been processed, which
8431 * imports the pool to the namespace if it's not in the
8434 char *checkpoint_pool = NULL;
8435 char *checkpoint_target = NULL;
8436 if (dump_opt['k']) {
8437 checkpoint_pool = import_checkpointed_state(target, cfg,
8438 &checkpoint_target);
8440 if (checkpoint_target != NULL)
8441 target = checkpoint_target;
8444 if (target_pool != target)
8448 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) {
8449 ASSERT(checkpoint_pool != NULL);
8450 ASSERT(checkpoint_target == NULL);
8452 error = spa_open(checkpoint_pool, &spa, FTAG);
8454 fatal("Tried to open pool \"%s\" but "
8455 "spa_open() failed with error %d\n",
8456 checkpoint_pool, error);
8459 } else if (target_is_spa || dump_opt['R'] || objset_id == 0) {
8460 zdb_set_skip_mmp(target);
8461 error = spa_open_rewind(target, &spa, FTAG, policy,
8465 * If we're missing the log device then
8466 * try opening the pool after clearing the
8469 mutex_enter(&spa_namespace_lock);
8470 if ((spa = spa_lookup(target)) != NULL &&
8471 spa->spa_log_state == SPA_LOG_MISSING) {
8472 spa->spa_log_state = SPA_LOG_CLEAR;
8475 mutex_exit(&spa_namespace_lock);
8478 error = spa_open_rewind(target, &spa,
8479 FTAG, policy, NULL);
8482 } else if (strpbrk(target, "#") != NULL) {
8484 error = dsl_pool_hold(target, FTAG, &dp);
8486 fatal("can't dump '%s': %s", target,
8489 error = dump_bookmark(dp, target, B_TRUE, verbose > 1);
8490 dsl_pool_rele(dp, FTAG);
8492 fatal("can't dump '%s': %s", target,
8497 zdb_set_skip_mmp(target);
8498 if (dataset_lookup == B_TRUE) {
8500 * Use the supplied id to get the name
8503 error = spa_open(target, &spa, FTAG);
8505 error = name_from_objset_id(spa,
8507 spa_close(spa, FTAG);
8513 error = open_objset(target, FTAG, &os);
8515 spa = dmu_objset_spa(os);
8518 nvlist_free(policy);
8521 fatal("can't open '%s': %s", target, strerror(error));
8524 * Set the pool failure mode to panic in order to prevent the pool
8525 * from suspending. A suspended I/O will have no way to resume and
8526 * can prevent the zdb(8) command from terminating as expected.
8529 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC;
8533 if (!dump_opt['R']) {
8534 flagbits['d'] = ZOR_FLAG_DIRECTORY;
8535 flagbits['f'] = ZOR_FLAG_PLAIN_FILE;
8536 flagbits['m'] = ZOR_FLAG_SPACE_MAP;
8537 flagbits['z'] = ZOR_FLAG_ZAP;
8538 flagbits['A'] = ZOR_FLAG_ALL_TYPES;
8540 if (argc > 0 && dump_opt['d']) {
8541 zopt_object_args = argc;
8542 zopt_object_ranges = calloc(zopt_object_args,
8543 sizeof (zopt_object_range_t));
8544 for (unsigned i = 0; i < zopt_object_args; i++) {
8548 err = parse_object_range(argv[i],
8549 &zopt_object_ranges[i], &msg);
8551 fatal("Bad object or range: '%s': %s\n",
8552 argv[i], msg ? msg : "");
8554 } else if (argc > 0 && dump_opt['m']) {
8555 zopt_metaslab_args = argc;
8556 zopt_metaslab = calloc(zopt_metaslab_args,
8558 for (unsigned i = 0; i < zopt_metaslab_args; i++) {
8560 zopt_metaslab[i] = strtoull(argv[i], NULL, 0);
8561 if (zopt_metaslab[i] == 0 && errno != 0)
8562 fatal("bad number %s: %s", argv[i],
8568 } else if (zopt_object_args > 0 && !dump_opt['m']) {
8569 dump_objset(spa->spa_meta_objset);
8574 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
8575 flagbits['c'] = ZDB_FLAG_CHECKSUM;
8576 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
8577 flagbits['e'] = ZDB_FLAG_BSWAP;
8578 flagbits['g'] = ZDB_FLAG_GBH;
8579 flagbits['i'] = ZDB_FLAG_INDIRECT;
8580 flagbits['r'] = ZDB_FLAG_RAW;
8581 flagbits['v'] = ZDB_FLAG_VERBOSE;
8583 for (int i = 0; i < argc; i++)
8584 zdb_read_block(argv[i], spa);
8587 if (dump_opt['k']) {
8588 free(checkpoint_pool);
8590 free(checkpoint_target);
8594 close_objset(os, FTAG);
8596 spa_close(spa, FTAG);
8599 fuid_table_destroy();
8601 dump_debug_buffer();