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, 2015 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
30 #include <stdio_ext.h>
33 #include <sys/zfs_context.h>
35 #include <sys/spa_impl.h>
38 #include <sys/fs/zfs.h>
39 #include <sys/zfs_znode.h>
40 #include <sys/zfs_sa.h>
42 #include <sys/sa_impl.h>
44 #include <sys/vdev_impl.h>
45 #include <sys/metaslab_impl.h>
46 #include <sys/dmu_objset.h>
47 #include <sys/dsl_dir.h>
48 #include <sys/dsl_dataset.h>
49 #include <sys/dsl_pool.h>
52 #include <sys/zil_impl.h>
54 #include <sys/resource.h>
55 #include <sys/dmu_traverse.h>
56 #include <sys/zio_checksum.h>
57 #include <sys/zio_compress.h>
58 #include <sys/zfs_fuid.h>
61 #include <sys/zfeature.h>
62 #include <zfs_comutil.h>
66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
67 zio_compress_table[(idx)].ci_name : "UNKNOWN")
68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
69 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
78 extern boolean_t zfs_recover;
79 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
80 extern int zfs_vdev_async_read_max_active;
82 boolean_t zfs_recover;
83 uint64_t zfs_arc_max, zfs_arc_meta_limit;
84 int zfs_vdev_async_read_max_active;
87 const char cmdname[] = "zdb";
88 uint8_t dump_opt[256];
90 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
92 extern void dump_intent_log(zilog_t *);
93 uint64_t *zopt_object = NULL;
95 libzfs_handle_t *g_zfs;
96 uint64_t max_inflight = 1000;
98 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
101 * These libumem hooks provide a reasonable set of defaults for the allocator's
102 * debugging facilities.
107 return ("default,verbose"); /* $UMEM_DEBUG setting */
111 _umem_logging_init(void)
113 return ("fail,contents"); /* $UMEM_LOGGING setting */
119 (void) fprintf(stderr,
120 "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
121 "[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n"
122 " %s [-divPA] [-e -p path...] [-U config] dataset "
124 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
125 "poolname [vdev [metaslab...]]\n"
126 " %s -R [-A] [-e [-p path...]] poolname "
127 "vdev:offset:size[:flags]\n"
128 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
129 " %s -l [-uA] device\n"
130 " %s -C [-A] [-U config]\n\n",
131 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
133 (void) fprintf(stderr, " Dataset name must include at least one "
134 "separator character '/' or '@'\n");
135 (void) fprintf(stderr, " If dataset name is specified, only that "
136 "dataset is dumped\n");
137 (void) fprintf(stderr, " If object numbers are specified, only "
138 "those objects are dumped\n\n");
139 (void) fprintf(stderr, " Options to control amount of output:\n");
140 (void) fprintf(stderr, " -u uberblock\n");
141 (void) fprintf(stderr, " -d dataset(s)\n");
142 (void) fprintf(stderr, " -i intent logs\n");
143 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
144 (void) fprintf(stderr, " -h pool history\n");
145 (void) fprintf(stderr, " -b block statistics\n");
146 (void) fprintf(stderr, " -m metaslabs\n");
147 (void) fprintf(stderr, " -M metaslab groups\n");
148 (void) fprintf(stderr, " -c checksum all metadata (twice for "
149 "all data) blocks\n");
150 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
151 (void) fprintf(stderr, " -D dedup statistics\n");
152 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
153 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
154 (void) fprintf(stderr, " -l dump label contents\n");
155 (void) fprintf(stderr, " -L disable leak tracking (do not "
156 "load spacemaps)\n");
157 (void) fprintf(stderr, " -R read and display block from a "
159 (void) fprintf(stderr, " Below options are intended for use "
160 "with other options:\n");
161 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
162 "panic recovery (-AA) or both (-AAA)\n");
163 (void) fprintf(stderr, " -F attempt automatic rewind within "
164 "safe range of transaction groups\n");
165 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
167 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
168 "work with dataset)\n");
169 (void) fprintf(stderr, " -e pool is exported/destroyed/"
170 "has altroot/not in a cachefile\n");
171 (void) fprintf(stderr, " -p <path> -- use one or more with "
172 "-e to specify path to vdev dir\n");
173 (void) fprintf(stderr, " -x <dumpdir> -- "
174 "dump all read blocks into specified directory\n");
175 (void) fprintf(stderr, " -P print numbers in parseable form\n");
176 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
177 "searching for uberblocks\n");
178 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
179 "specify the maximum number of "
180 "checksumming I/Os [default is 200]\n");
181 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
182 "to make only that option verbose\n");
183 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
188 * Called for usage errors that are discovered after a call to spa_open(),
189 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
193 fatal(const char *fmt, ...)
198 (void) fprintf(stderr, "%s: ", cmdname);
199 (void) vfprintf(stderr, fmt, ap);
201 (void) fprintf(stderr, "\n");
208 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
211 size_t nvsize = *(uint64_t *)data;
212 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
214 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
216 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
218 umem_free(packed, nvsize);
227 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
229 spa_history_phys_t *shp = data;
234 (void) printf("\t\tpool_create_len = %llu\n",
235 (u_longlong_t)shp->sh_pool_create_len);
236 (void) printf("\t\tphys_max_off = %llu\n",
237 (u_longlong_t)shp->sh_phys_max_off);
238 (void) printf("\t\tbof = %llu\n",
239 (u_longlong_t)shp->sh_bof);
240 (void) printf("\t\teof = %llu\n",
241 (u_longlong_t)shp->sh_eof);
242 (void) printf("\t\trecords_lost = %llu\n",
243 (u_longlong_t)shp->sh_records_lost);
247 zdb_nicenum(uint64_t num, char *buf)
250 (void) sprintf(buf, "%llu", (longlong_t)num);
255 const char histo_stars[] = "****************************************";
256 const int histo_width = sizeof (histo_stars) - 1;
259 dump_histogram(const uint64_t *histo, int size, int offset)
262 int minidx = size - 1;
266 for (i = 0; i < size; i++) {
269 if (histo[i] > 0 && i > maxidx)
271 if (histo[i] > 0 && i < minidx)
275 if (max < histo_width)
278 for (i = minidx; i <= maxidx; i++) {
279 (void) printf("\t\t\t%3u: %6llu %s\n",
280 i + offset, (u_longlong_t)histo[i],
281 &histo_stars[(max - histo[i]) * histo_width / max]);
286 dump_zap_stats(objset_t *os, uint64_t object)
291 error = zap_get_stats(os, object, &zs);
295 if (zs.zs_ptrtbl_len == 0) {
296 ASSERT(zs.zs_num_blocks == 1);
297 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
298 (u_longlong_t)zs.zs_blocksize,
299 (u_longlong_t)zs.zs_num_entries);
303 (void) printf("\tFat ZAP stats:\n");
305 (void) printf("\t\tPointer table:\n");
306 (void) printf("\t\t\t%llu elements\n",
307 (u_longlong_t)zs.zs_ptrtbl_len);
308 (void) printf("\t\t\tzt_blk: %llu\n",
309 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
310 (void) printf("\t\t\tzt_numblks: %llu\n",
311 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
312 (void) printf("\t\t\tzt_shift: %llu\n",
313 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
314 (void) printf("\t\t\tzt_blks_copied: %llu\n",
315 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
316 (void) printf("\t\t\tzt_nextblk: %llu\n",
317 (u_longlong_t)zs.zs_ptrtbl_nextblk);
319 (void) printf("\t\tZAP entries: %llu\n",
320 (u_longlong_t)zs.zs_num_entries);
321 (void) printf("\t\tLeaf blocks: %llu\n",
322 (u_longlong_t)zs.zs_num_leafs);
323 (void) printf("\t\tTotal blocks: %llu\n",
324 (u_longlong_t)zs.zs_num_blocks);
325 (void) printf("\t\tzap_block_type: 0x%llx\n",
326 (u_longlong_t)zs.zs_block_type);
327 (void) printf("\t\tzap_magic: 0x%llx\n",
328 (u_longlong_t)zs.zs_magic);
329 (void) printf("\t\tzap_salt: 0x%llx\n",
330 (u_longlong_t)zs.zs_salt);
332 (void) printf("\t\tLeafs with 2^n pointers:\n");
333 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
335 (void) printf("\t\tBlocks with n*5 entries:\n");
336 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
338 (void) printf("\t\tBlocks n/10 full:\n");
339 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
341 (void) printf("\t\tEntries with n chunks:\n");
342 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
344 (void) printf("\t\tBuckets with n entries:\n");
345 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
350 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
356 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
358 (void) printf("\tUNKNOWN OBJECT TYPE\n");
363 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
369 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
375 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
378 zap_attribute_t attr;
382 dump_zap_stats(os, object);
385 for (zap_cursor_init(&zc, os, object);
386 zap_cursor_retrieve(&zc, &attr) == 0;
387 zap_cursor_advance(&zc)) {
388 (void) printf("\t\t%s = ", attr.za_name);
389 if (attr.za_num_integers == 0) {
393 prop = umem_zalloc(attr.za_num_integers *
394 attr.za_integer_length, UMEM_NOFAIL);
395 (void) zap_lookup(os, object, attr.za_name,
396 attr.za_integer_length, attr.za_num_integers, prop);
397 if (attr.za_integer_length == 1) {
398 (void) printf("%s", (char *)prop);
400 for (i = 0; i < attr.za_num_integers; i++) {
401 switch (attr.za_integer_length) {
404 ((uint16_t *)prop)[i]);
408 ((uint32_t *)prop)[i]);
411 (void) printf("%lld ",
412 (u_longlong_t)((int64_t *)prop)[i]);
418 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
420 zap_cursor_fini(&zc);
424 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
426 bpobj_phys_t *bpop = data;
427 char bytes[32], comp[32], uncomp[32];
432 zdb_nicenum(bpop->bpo_bytes, bytes);
433 zdb_nicenum(bpop->bpo_comp, comp);
434 zdb_nicenum(bpop->bpo_uncomp, uncomp);
436 (void) printf("\t\tnum_blkptrs = %llu\n",
437 (u_longlong_t)bpop->bpo_num_blkptrs);
438 (void) printf("\t\tbytes = %s\n", bytes);
439 if (size >= BPOBJ_SIZE_V1) {
440 (void) printf("\t\tcomp = %s\n", comp);
441 (void) printf("\t\tuncomp = %s\n", uncomp);
443 if (size >= sizeof (*bpop)) {
444 (void) printf("\t\tsubobjs = %llu\n",
445 (u_longlong_t)bpop->bpo_subobjs);
446 (void) printf("\t\tnum_subobjs = %llu\n",
447 (u_longlong_t)bpop->bpo_num_subobjs);
450 if (dump_opt['d'] < 5)
453 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
454 char blkbuf[BP_SPRINTF_LEN];
457 int err = dmu_read(os, object,
458 i * sizeof (bp), sizeof (bp), &bp, 0);
460 (void) printf("got error %u from dmu_read\n", err);
463 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
464 (void) printf("\t%s\n", blkbuf);
470 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
472 dmu_object_info_t doi;
474 VERIFY0(dmu_object_info(os, object, &doi));
475 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
477 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
479 (void) printf("got error %u from dmu_read\n", err);
480 kmem_free(subobjs, doi.doi_max_offset);
484 int64_t last_nonzero = -1;
485 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
490 for (int64_t i = 0; i <= last_nonzero; i++) {
491 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
493 kmem_free(subobjs, doi.doi_max_offset);
498 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
500 dump_zap_stats(os, object);
501 /* contents are printed elsewhere, properly decoded */
506 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
509 zap_attribute_t attr;
511 dump_zap_stats(os, object);
514 for (zap_cursor_init(&zc, os, object);
515 zap_cursor_retrieve(&zc, &attr) == 0;
516 zap_cursor_advance(&zc)) {
517 (void) printf("\t\t%s = ", attr.za_name);
518 if (attr.za_num_integers == 0) {
522 (void) printf(" %llx : [%d:%d:%d]\n",
523 (u_longlong_t)attr.za_first_integer,
524 (int)ATTR_LENGTH(attr.za_first_integer),
525 (int)ATTR_BSWAP(attr.za_first_integer),
526 (int)ATTR_NUM(attr.za_first_integer));
528 zap_cursor_fini(&zc);
533 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
536 zap_attribute_t attr;
537 uint16_t *layout_attrs;
540 dump_zap_stats(os, object);
543 for (zap_cursor_init(&zc, os, object);
544 zap_cursor_retrieve(&zc, &attr) == 0;
545 zap_cursor_advance(&zc)) {
546 (void) printf("\t\t%s = [", attr.za_name);
547 if (attr.za_num_integers == 0) {
552 VERIFY(attr.za_integer_length == 2);
553 layout_attrs = umem_zalloc(attr.za_num_integers *
554 attr.za_integer_length, UMEM_NOFAIL);
556 VERIFY(zap_lookup(os, object, attr.za_name,
557 attr.za_integer_length,
558 attr.za_num_integers, layout_attrs) == 0);
560 for (i = 0; i != attr.za_num_integers; i++)
561 (void) printf(" %d ", (int)layout_attrs[i]);
562 (void) printf("]\n");
563 umem_free(layout_attrs,
564 attr.za_num_integers * attr.za_integer_length);
566 zap_cursor_fini(&zc);
571 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
574 zap_attribute_t attr;
575 const char *typenames[] = {
576 /* 0 */ "not specified",
578 /* 2 */ "Character Device",
579 /* 3 */ "3 (invalid)",
581 /* 5 */ "5 (invalid)",
582 /* 6 */ "Block Device",
583 /* 7 */ "7 (invalid)",
584 /* 8 */ "Regular File",
585 /* 9 */ "9 (invalid)",
586 /* 10 */ "Symbolic Link",
587 /* 11 */ "11 (invalid)",
590 /* 14 */ "Event Port",
591 /* 15 */ "15 (invalid)",
594 dump_zap_stats(os, object);
597 for (zap_cursor_init(&zc, os, object);
598 zap_cursor_retrieve(&zc, &attr) == 0;
599 zap_cursor_advance(&zc)) {
600 (void) printf("\t\t%s = %lld (type: %s)\n",
601 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
602 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
604 zap_cursor_fini(&zc);
608 get_dtl_refcount(vdev_t *vd)
612 if (vd->vdev_ops->vdev_op_leaf) {
613 space_map_t *sm = vd->vdev_dtl_sm;
616 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
621 for (int c = 0; c < vd->vdev_children; c++)
622 refcount += get_dtl_refcount(vd->vdev_child[c]);
627 get_metaslab_refcount(vdev_t *vd)
631 if (vd->vdev_top == vd && !vd->vdev_removing) {
632 for (int m = 0; m < vd->vdev_ms_count; m++) {
633 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
636 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
640 for (int c = 0; c < vd->vdev_children; c++)
641 refcount += get_metaslab_refcount(vd->vdev_child[c]);
647 verify_spacemap_refcounts(spa_t *spa)
649 uint64_t expected_refcount = 0;
650 uint64_t actual_refcount;
652 (void) feature_get_refcount(spa,
653 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
655 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
656 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
658 if (expected_refcount != actual_refcount) {
659 (void) printf("space map refcount mismatch: expected %lld != "
661 (longlong_t)expected_refcount,
662 (longlong_t)actual_refcount);
669 dump_spacemap(objset_t *os, space_map_t *sm)
671 uint64_t alloc, offset, entry;
672 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
673 "INVALID", "INVALID", "INVALID", "INVALID" };
679 * Print out the freelist entries in both encoded and decoded form.
682 for (offset = 0; offset < space_map_length(sm);
683 offset += sizeof (entry)) {
684 uint8_t mapshift = sm->sm_shift;
686 VERIFY0(dmu_read(os, space_map_object(sm), offset,
687 sizeof (entry), &entry, DMU_READ_PREFETCH));
688 if (SM_DEBUG_DECODE(entry)) {
690 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
691 (u_longlong_t)(offset / sizeof (entry)),
692 ddata[SM_DEBUG_ACTION_DECODE(entry)],
693 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
694 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
696 (void) printf("\t [%6llu] %c range:"
697 " %010llx-%010llx size: %06llx\n",
698 (u_longlong_t)(offset / sizeof (entry)),
699 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
700 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
701 mapshift) + sm->sm_start),
702 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
703 mapshift) + sm->sm_start +
704 (SM_RUN_DECODE(entry) << mapshift)),
705 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
706 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
707 alloc += SM_RUN_DECODE(entry) << mapshift;
709 alloc -= SM_RUN_DECODE(entry) << mapshift;
712 if (alloc != space_map_allocated(sm)) {
713 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
714 "with space map summary (%llu)\n",
715 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
720 dump_metaslab_stats(metaslab_t *msp)
723 range_tree_t *rt = msp->ms_tree;
724 avl_tree_t *t = &msp->ms_size_tree;
725 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
727 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
729 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
730 "segments", avl_numnodes(t), "maxsize", maxbuf,
731 "freepct", free_pct);
732 (void) printf("\tIn-memory histogram:\n");
733 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
737 dump_metaslab(metaslab_t *msp)
739 vdev_t *vd = msp->ms_group->mg_vd;
740 spa_t *spa = vd->vdev_spa;
741 space_map_t *sm = msp->ms_sm;
744 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
747 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
748 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
749 (u_longlong_t)space_map_object(sm), freebuf);
751 if (dump_opt['m'] > 2 && !dump_opt['L']) {
752 mutex_enter(&msp->ms_lock);
753 metaslab_load_wait(msp);
754 if (!msp->ms_loaded) {
755 VERIFY0(metaslab_load(msp));
756 range_tree_stat_verify(msp->ms_tree);
758 dump_metaslab_stats(msp);
759 metaslab_unload(msp);
760 mutex_exit(&msp->ms_lock);
763 if (dump_opt['m'] > 1 && sm != NULL &&
764 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
766 * The space map histogram represents free space in chunks
767 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
769 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
770 (u_longlong_t)msp->ms_fragmentation);
771 dump_histogram(sm->sm_phys->smp_histogram,
772 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
775 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
776 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
778 mutex_enter(&msp->ms_lock);
779 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
780 mutex_exit(&msp->ms_lock);
785 print_vdev_metaslab_header(vdev_t *vd)
787 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
788 (u_longlong_t)vd->vdev_id,
789 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
790 "offset", "spacemap", "free");
791 (void) printf("\t%15s %19s %15s %10s\n",
792 "---------------", "-------------------",
793 "---------------", "-------------");
797 dump_metaslab_groups(spa_t *spa)
799 vdev_t *rvd = spa->spa_root_vdev;
800 metaslab_class_t *mc = spa_normal_class(spa);
801 uint64_t fragmentation;
803 metaslab_class_histogram_verify(mc);
805 for (int c = 0; c < rvd->vdev_children; c++) {
806 vdev_t *tvd = rvd->vdev_child[c];
807 metaslab_group_t *mg = tvd->vdev_mg;
809 if (mg->mg_class != mc)
812 metaslab_group_histogram_verify(mg);
813 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
815 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
817 (u_longlong_t)tvd->vdev_id,
818 (u_longlong_t)tvd->vdev_ms_count);
819 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
820 (void) printf("%3s\n", "-");
822 (void) printf("%3llu%%\n",
823 (u_longlong_t)mg->mg_fragmentation);
825 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
828 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
829 fragmentation = metaslab_class_fragmentation(mc);
830 if (fragmentation == ZFS_FRAG_INVALID)
831 (void) printf("\t%3s\n", "-");
833 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
834 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
838 dump_metaslabs(spa_t *spa)
840 vdev_t *vd, *rvd = spa->spa_root_vdev;
841 uint64_t m, c = 0, children = rvd->vdev_children;
843 (void) printf("\nMetaslabs:\n");
845 if (!dump_opt['d'] && zopt_objects > 0) {
849 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
851 if (zopt_objects > 1) {
852 vd = rvd->vdev_child[c];
853 print_vdev_metaslab_header(vd);
855 for (m = 1; m < zopt_objects; m++) {
856 if (zopt_object[m] < vd->vdev_ms_count)
858 vd->vdev_ms[zopt_object[m]]);
860 (void) fprintf(stderr, "bad metaslab "
862 (u_longlong_t)zopt_object[m]);
869 for (; c < children; c++) {
870 vd = rvd->vdev_child[c];
871 print_vdev_metaslab_header(vd);
873 for (m = 0; m < vd->vdev_ms_count; m++)
874 dump_metaslab(vd->vdev_ms[m]);
880 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
882 const ddt_phys_t *ddp = dde->dde_phys;
883 const ddt_key_t *ddk = &dde->dde_key;
884 char *types[4] = { "ditto", "single", "double", "triple" };
885 char blkbuf[BP_SPRINTF_LEN];
888 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
889 if (ddp->ddp_phys_birth == 0)
891 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
892 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
893 (void) printf("index %llx refcnt %llu %s %s\n",
894 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
900 dump_dedup_ratio(const ddt_stat_t *dds)
902 double rL, rP, rD, D, dedup, compress, copies;
904 if (dds->dds_blocks == 0)
907 rL = (double)dds->dds_ref_lsize;
908 rP = (double)dds->dds_ref_psize;
909 rD = (double)dds->dds_ref_dsize;
910 D = (double)dds->dds_dsize;
916 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
917 "dedup * compress / copies = %.2f\n\n",
918 dedup, compress, copies, dedup * compress / copies);
922 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
924 char name[DDT_NAMELEN];
927 dmu_object_info_t doi;
928 uint64_t count, dspace, mspace;
931 error = ddt_object_info(ddt, type, class, &doi);
937 error = ddt_object_count(ddt, type, class, &count);
942 dspace = doi.doi_physical_blocks_512 << 9;
943 mspace = doi.doi_fill_count * doi.doi_data_block_size;
945 ddt_object_name(ddt, type, class, name);
947 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
950 (u_longlong_t)(dspace / count),
951 (u_longlong_t)(mspace / count));
953 if (dump_opt['D'] < 3)
956 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
958 if (dump_opt['D'] < 4)
961 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
964 (void) printf("%s contents:\n\n", name);
966 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
967 dump_dde(ddt, &dde, walk);
969 ASSERT(error == ENOENT);
975 dump_all_ddts(spa_t *spa)
977 ddt_histogram_t ddh_total = { 0 };
978 ddt_stat_t dds_total = { 0 };
980 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
981 ddt_t *ddt = spa->spa_ddt[c];
982 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
983 for (enum ddt_class class = 0; class < DDT_CLASSES;
985 dump_ddt(ddt, type, class);
990 ddt_get_dedup_stats(spa, &dds_total);
992 if (dds_total.dds_blocks == 0) {
993 (void) printf("All DDTs are empty\n");
999 if (dump_opt['D'] > 1) {
1000 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1001 ddt_get_dedup_histogram(spa, &ddh_total);
1002 zpool_dump_ddt(&dds_total, &ddh_total);
1005 dump_dedup_ratio(&dds_total);
1009 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1013 (void) printf("%s [%llu,%llu) length %llu\n",
1015 (u_longlong_t)start,
1016 (u_longlong_t)(start + size),
1017 (u_longlong_t)(size));
1021 dump_dtl(vdev_t *vd, int indent)
1023 spa_t *spa = vd->vdev_spa;
1025 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
1028 spa_vdev_state_enter(spa, SCL_NONE);
1029 required = vdev_dtl_required(vd);
1030 (void) spa_vdev_state_exit(spa, NULL, 0);
1033 (void) printf("\nDirty time logs:\n\n");
1035 (void) printf("\t%*s%s [%s]\n", indent, "",
1036 vd->vdev_path ? vd->vdev_path :
1037 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1038 required ? "DTL-required" : "DTL-expendable");
1040 for (int t = 0; t < DTL_TYPES; t++) {
1041 range_tree_t *rt = vd->vdev_dtl[t];
1042 if (range_tree_space(rt) == 0)
1044 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1045 indent + 2, "", name[t]);
1046 mutex_enter(rt->rt_lock);
1047 range_tree_walk(rt, dump_dtl_seg, prefix);
1048 mutex_exit(rt->rt_lock);
1049 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1050 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1053 for (int c = 0; c < vd->vdev_children; c++)
1054 dump_dtl(vd->vdev_child[c], indent + 4);
1057 /* from spa_history.c: spa_history_create_obj() */
1058 #define HIS_BUF_LEN_DEF (128 << 10)
1059 #define HIS_BUF_LEN_MAX (1 << 30)
1062 dump_history(spa_t *spa)
1064 nvlist_t **events = NULL;
1066 uint64_t bufsize = HIS_BUF_LEN_DEF;
1067 uint64_t resid, len, off = 0;
1073 char internalstr[MAXPATHLEN];
1075 if ((buf = malloc(bufsize)) == NULL)
1076 (void) fprintf(stderr, "Unable to read history: "
1081 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1082 (void) fprintf(stderr, "Unable to read history: "
1083 "error %d\n", error);
1087 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1092 * If the history block is too big, double the buffer
1093 * size and try again.
1100 if ((bufsize >= HIS_BUF_LEN_MAX) ||
1101 ((buf = malloc(bufsize)) == NULL)) {
1102 (void) fprintf(stderr, "Unable to read history: "
1110 (void) printf("\nHistory:\n");
1111 for (int i = 0; i < num; i++) {
1112 uint64_t time, txg, ievent;
1114 boolean_t printed = B_FALSE;
1116 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1119 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1121 if (nvlist_lookup_uint64(events[i],
1122 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1124 verify(nvlist_lookup_uint64(events[i],
1125 ZPOOL_HIST_TXG, &txg) == 0);
1126 verify(nvlist_lookup_string(events[i],
1127 ZPOOL_HIST_INT_STR, &intstr) == 0);
1128 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1131 (void) snprintf(internalstr,
1132 sizeof (internalstr),
1133 "[internal %s txg:%lld] %s",
1134 zfs_history_event_names[ievent], txg,
1139 (void) localtime_r(&tsec, &t);
1140 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1141 (void) printf("%s %s\n", tbuf, cmd);
1145 if (dump_opt['h'] > 1) {
1147 (void) printf("unrecognized record:\n");
1148 dump_nvlist(events[i], 2);
1155 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1160 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1161 const zbookmark_phys_t *zb)
1164 ASSERT(zb->zb_level < 0);
1165 if (zb->zb_object == 0)
1166 return (zb->zb_blkid);
1167 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1170 ASSERT(zb->zb_level >= 0);
1172 return ((zb->zb_blkid <<
1173 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1174 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1178 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1180 const dva_t *dva = bp->blk_dva;
1181 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1183 if (dump_opt['b'] >= 6) {
1184 snprintf_blkptr(blkbuf, buflen, bp);
1188 if (BP_IS_EMBEDDED(bp)) {
1189 (void) sprintf(blkbuf,
1190 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1191 (int)BPE_GET_ETYPE(bp),
1192 (u_longlong_t)BPE_GET_LSIZE(bp),
1193 (u_longlong_t)BPE_GET_PSIZE(bp),
1194 (u_longlong_t)bp->blk_birth);
1199 for (int i = 0; i < ndvas; i++)
1200 (void) snprintf(blkbuf + strlen(blkbuf),
1201 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1202 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1203 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1204 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1206 if (BP_IS_HOLE(bp)) {
1207 (void) snprintf(blkbuf + strlen(blkbuf),
1208 buflen - strlen(blkbuf),
1210 (u_longlong_t)BP_GET_LSIZE(bp),
1211 (u_longlong_t)bp->blk_birth);
1213 (void) snprintf(blkbuf + strlen(blkbuf),
1214 buflen - strlen(blkbuf),
1215 "%llxL/%llxP F=%llu B=%llu/%llu",
1216 (u_longlong_t)BP_GET_LSIZE(bp),
1217 (u_longlong_t)BP_GET_PSIZE(bp),
1218 (u_longlong_t)BP_GET_FILL(bp),
1219 (u_longlong_t)bp->blk_birth,
1220 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1225 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1226 const dnode_phys_t *dnp)
1228 char blkbuf[BP_SPRINTF_LEN];
1231 if (!BP_IS_EMBEDDED(bp)) {
1232 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1233 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1236 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1238 ASSERT(zb->zb_level >= 0);
1240 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1241 if (l == zb->zb_level) {
1242 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1248 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1249 (void) printf("%s\n", blkbuf);
1253 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1254 blkptr_t *bp, const zbookmark_phys_t *zb)
1258 if (bp->blk_birth == 0)
1261 print_indirect(bp, zb, dnp);
1263 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1264 arc_flags_t flags = ARC_FLAG_WAIT;
1267 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1271 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1272 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1275 ASSERT(buf->b_data);
1277 /* recursively visit blocks below this */
1279 for (i = 0; i < epb; i++, cbp++) {
1280 zbookmark_phys_t czb;
1282 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1284 zb->zb_blkid * epb + i);
1285 err = visit_indirect(spa, dnp, cbp, &czb);
1288 fill += BP_GET_FILL(cbp);
1291 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1292 arc_buf_destroy(buf, &buf);
1300 dump_indirect(dnode_t *dn)
1302 dnode_phys_t *dnp = dn->dn_phys;
1304 zbookmark_phys_t czb;
1306 (void) printf("Indirect blocks:\n");
1308 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1309 dn->dn_object, dnp->dn_nlevels - 1, 0);
1310 for (j = 0; j < dnp->dn_nblkptr; j++) {
1312 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1313 &dnp->dn_blkptr[j], &czb);
1316 (void) printf("\n");
1321 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1323 dsl_dir_phys_t *dd = data;
1330 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1332 crtime = dd->dd_creation_time;
1333 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1334 (void) printf("\t\thead_dataset_obj = %llu\n",
1335 (u_longlong_t)dd->dd_head_dataset_obj);
1336 (void) printf("\t\tparent_dir_obj = %llu\n",
1337 (u_longlong_t)dd->dd_parent_obj);
1338 (void) printf("\t\torigin_obj = %llu\n",
1339 (u_longlong_t)dd->dd_origin_obj);
1340 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1341 (u_longlong_t)dd->dd_child_dir_zapobj);
1342 zdb_nicenum(dd->dd_used_bytes, nice);
1343 (void) printf("\t\tused_bytes = %s\n", nice);
1344 zdb_nicenum(dd->dd_compressed_bytes, nice);
1345 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1346 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1347 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1348 zdb_nicenum(dd->dd_quota, nice);
1349 (void) printf("\t\tquota = %s\n", nice);
1350 zdb_nicenum(dd->dd_reserved, nice);
1351 (void) printf("\t\treserved = %s\n", nice);
1352 (void) printf("\t\tprops_zapobj = %llu\n",
1353 (u_longlong_t)dd->dd_props_zapobj);
1354 (void) printf("\t\tdeleg_zapobj = %llu\n",
1355 (u_longlong_t)dd->dd_deleg_zapobj);
1356 (void) printf("\t\tflags = %llx\n",
1357 (u_longlong_t)dd->dd_flags);
1360 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1361 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1372 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1374 dsl_dataset_phys_t *ds = data;
1376 char used[32], compressed[32], uncompressed[32], unique[32];
1377 char blkbuf[BP_SPRINTF_LEN];
1382 ASSERT(size == sizeof (*ds));
1383 crtime = ds->ds_creation_time;
1384 zdb_nicenum(ds->ds_referenced_bytes, used);
1385 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1386 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1387 zdb_nicenum(ds->ds_unique_bytes, unique);
1388 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1390 (void) printf("\t\tdir_obj = %llu\n",
1391 (u_longlong_t)ds->ds_dir_obj);
1392 (void) printf("\t\tprev_snap_obj = %llu\n",
1393 (u_longlong_t)ds->ds_prev_snap_obj);
1394 (void) printf("\t\tprev_snap_txg = %llu\n",
1395 (u_longlong_t)ds->ds_prev_snap_txg);
1396 (void) printf("\t\tnext_snap_obj = %llu\n",
1397 (u_longlong_t)ds->ds_next_snap_obj);
1398 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1399 (u_longlong_t)ds->ds_snapnames_zapobj);
1400 (void) printf("\t\tnum_children = %llu\n",
1401 (u_longlong_t)ds->ds_num_children);
1402 (void) printf("\t\tuserrefs_obj = %llu\n",
1403 (u_longlong_t)ds->ds_userrefs_obj);
1404 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1405 (void) printf("\t\tcreation_txg = %llu\n",
1406 (u_longlong_t)ds->ds_creation_txg);
1407 (void) printf("\t\tdeadlist_obj = %llu\n",
1408 (u_longlong_t)ds->ds_deadlist_obj);
1409 (void) printf("\t\tused_bytes = %s\n", used);
1410 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1411 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1412 (void) printf("\t\tunique = %s\n", unique);
1413 (void) printf("\t\tfsid_guid = %llu\n",
1414 (u_longlong_t)ds->ds_fsid_guid);
1415 (void) printf("\t\tguid = %llu\n",
1416 (u_longlong_t)ds->ds_guid);
1417 (void) printf("\t\tflags = %llx\n",
1418 (u_longlong_t)ds->ds_flags);
1419 (void) printf("\t\tnext_clones_obj = %llu\n",
1420 (u_longlong_t)ds->ds_next_clones_obj);
1421 (void) printf("\t\tprops_obj = %llu\n",
1422 (u_longlong_t)ds->ds_props_obj);
1423 (void) printf("\t\tbp = %s\n", blkbuf);
1428 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1430 char blkbuf[BP_SPRINTF_LEN];
1432 if (bp->blk_birth != 0) {
1433 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1434 (void) printf("\t%s\n", blkbuf);
1440 dump_bptree(objset_t *os, uint64_t obj, char *name)
1446 if (dump_opt['d'] < 3)
1449 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1451 zdb_nicenum(bt->bt_bytes, bytes);
1452 (void) printf("\n %s: %llu datasets, %s\n",
1453 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1454 dmu_buf_rele(db, FTAG);
1456 if (dump_opt['d'] < 5)
1459 (void) printf("\n");
1461 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1466 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1468 char blkbuf[BP_SPRINTF_LEN];
1470 ASSERT(bp->blk_birth != 0);
1471 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1472 (void) printf("\t%s\n", blkbuf);
1477 dump_full_bpobj(bpobj_t *bpo, char *name, int indent)
1483 if (dump_opt['d'] < 3)
1486 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1487 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1488 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1489 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1490 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1491 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1493 (u_longlong_t)bpo->bpo_object,
1494 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1495 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1496 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1497 bytes, comp, uncomp);
1499 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1503 VERIFY0(dmu_read(bpo->bpo_os,
1504 bpo->bpo_phys->bpo_subobjs,
1505 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1506 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1508 (void) printf("ERROR %u while trying to open "
1510 error, (u_longlong_t)subobj);
1513 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1514 bpobj_close(&subbpo);
1517 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1519 (u_longlong_t)bpo->bpo_object,
1520 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1524 if (dump_opt['d'] < 5)
1529 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1530 (void) printf("\n");
1535 dump_deadlist(dsl_deadlist_t *dl)
1537 dsl_deadlist_entry_t *dle;
1543 if (dump_opt['d'] < 3)
1546 if (dl->dl_oldfmt) {
1547 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1551 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1552 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1553 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1554 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1555 bytes, comp, uncomp);
1557 if (dump_opt['d'] < 4)
1560 (void) printf("\n");
1562 /* force the tree to be loaded */
1563 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1565 for (dle = avl_first(&dl->dl_tree); dle;
1566 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1567 if (dump_opt['d'] >= 5) {
1569 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ",
1570 (longlong_t)dle->dle_mintxg,
1571 (longlong_t)dle->dle_bpobj.bpo_object);
1572 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1574 (void) printf("mintxg %llu -> obj %llu\n",
1575 (longlong_t)dle->dle_mintxg,
1576 (longlong_t)dle->dle_bpobj.bpo_object);
1582 static avl_tree_t idx_tree;
1583 static avl_tree_t domain_tree;
1584 static boolean_t fuid_table_loaded;
1585 static boolean_t sa_loaded;
1586 sa_attr_type_t *sa_attr_table;
1589 fuid_table_destroy()
1591 if (fuid_table_loaded) {
1592 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1593 fuid_table_loaded = B_FALSE;
1598 * print uid or gid information.
1599 * For normal POSIX id just the id is printed in decimal format.
1600 * For CIFS files with FUID the fuid is printed in hex followed by
1601 * the domain-rid string.
1604 print_idstr(uint64_t id, const char *id_type)
1606 if (FUID_INDEX(id)) {
1609 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1610 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1611 (u_longlong_t)id, domain, (int)FUID_RID(id));
1613 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1619 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1621 uint32_t uid_idx, gid_idx;
1623 uid_idx = FUID_INDEX(uid);
1624 gid_idx = FUID_INDEX(gid);
1626 /* Load domain table, if not already loaded */
1627 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1630 /* first find the fuid object. It lives in the master node */
1631 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1632 8, 1, &fuid_obj) == 0);
1633 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1634 (void) zfs_fuid_table_load(os, fuid_obj,
1635 &idx_tree, &domain_tree);
1636 fuid_table_loaded = B_TRUE;
1639 print_idstr(uid, "uid");
1640 print_idstr(gid, "gid");
1645 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1647 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1649 uint64_t xattr, rdev, gen;
1650 uint64_t uid, gid, mode, fsize, parent, links;
1652 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1653 time_t z_crtime, z_atime, z_mtime, z_ctime;
1654 sa_bulk_attr_t bulk[12];
1659 uint64_t sa_attrs = 0;
1662 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1663 8, 1, &version) == 0);
1664 if (version >= ZPL_VERSION_SA) {
1665 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1666 8, 1, &sa_attrs) == 0);
1668 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1669 ZPL_END, &sa_attr_table)) != 0) {
1670 (void) printf("sa_setup failed errno %d, can't "
1671 "display znode contents\n", error);
1677 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1678 (void) printf("Failed to get handle for SA znode\n");
1682 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1683 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1684 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1686 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1687 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1689 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1691 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1693 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1695 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1697 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1699 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1701 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1704 if (sa_bulk_lookup(hdl, bulk, idx)) {
1705 (void) sa_handle_destroy(hdl);
1709 error = zfs_obj_to_path(os, object, path, sizeof (path));
1711 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1712 (u_longlong_t)object);
1714 if (dump_opt['d'] < 3) {
1715 (void) printf("\t%s\n", path);
1716 (void) sa_handle_destroy(hdl);
1720 z_crtime = (time_t)crtm[0];
1721 z_atime = (time_t)acctm[0];
1722 z_mtime = (time_t)modtm[0];
1723 z_ctime = (time_t)chgtm[0];
1725 (void) printf("\tpath %s\n", path);
1726 dump_uidgid(os, uid, gid);
1727 (void) printf("\tatime %s", ctime(&z_atime));
1728 (void) printf("\tmtime %s", ctime(&z_mtime));
1729 (void) printf("\tctime %s", ctime(&z_ctime));
1730 (void) printf("\tcrtime %s", ctime(&z_crtime));
1731 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1732 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1733 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1734 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1735 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1736 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1737 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1738 sizeof (uint64_t)) == 0)
1739 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1740 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1741 sizeof (uint64_t)) == 0)
1742 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1743 sa_handle_destroy(hdl);
1748 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1754 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1758 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1759 dump_none, /* unallocated */
1760 dump_zap, /* object directory */
1761 dump_uint64, /* object array */
1762 dump_none, /* packed nvlist */
1763 dump_packed_nvlist, /* packed nvlist size */
1764 dump_none, /* bpobj */
1765 dump_bpobj, /* bpobj header */
1766 dump_none, /* SPA space map header */
1767 dump_none, /* SPA space map */
1768 dump_none, /* ZIL intent log */
1769 dump_dnode, /* DMU dnode */
1770 dump_dmu_objset, /* DMU objset */
1771 dump_dsl_dir, /* DSL directory */
1772 dump_zap, /* DSL directory child map */
1773 dump_zap, /* DSL dataset snap map */
1774 dump_zap, /* DSL props */
1775 dump_dsl_dataset, /* DSL dataset */
1776 dump_znode, /* ZFS znode */
1777 dump_acl, /* ZFS V0 ACL */
1778 dump_uint8, /* ZFS plain file */
1779 dump_zpldir, /* ZFS directory */
1780 dump_zap, /* ZFS master node */
1781 dump_zap, /* ZFS delete queue */
1782 dump_uint8, /* zvol object */
1783 dump_zap, /* zvol prop */
1784 dump_uint8, /* other uint8[] */
1785 dump_uint64, /* other uint64[] */
1786 dump_zap, /* other ZAP */
1787 dump_zap, /* persistent error log */
1788 dump_uint8, /* SPA history */
1789 dump_history_offsets, /* SPA history offsets */
1790 dump_zap, /* Pool properties */
1791 dump_zap, /* DSL permissions */
1792 dump_acl, /* ZFS ACL */
1793 dump_uint8, /* ZFS SYSACL */
1794 dump_none, /* FUID nvlist */
1795 dump_packed_nvlist, /* FUID nvlist size */
1796 dump_zap, /* DSL dataset next clones */
1797 dump_zap, /* DSL scrub queue */
1798 dump_zap, /* ZFS user/group used */
1799 dump_zap, /* ZFS user/group quota */
1800 dump_zap, /* snapshot refcount tags */
1801 dump_ddt_zap, /* DDT ZAP object */
1802 dump_zap, /* DDT statistics */
1803 dump_znode, /* SA object */
1804 dump_zap, /* SA Master Node */
1805 dump_sa_attrs, /* SA attribute registration */
1806 dump_sa_layouts, /* SA attribute layouts */
1807 dump_zap, /* DSL scrub translations */
1808 dump_none, /* fake dedup BP */
1809 dump_zap, /* deadlist */
1810 dump_none, /* deadlist hdr */
1811 dump_zap, /* dsl clones */
1812 dump_bpobj_subobjs, /* bpobj subobjs */
1813 dump_unknown, /* Unknown type, must be last */
1817 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1819 dmu_buf_t *db = NULL;
1820 dmu_object_info_t doi;
1824 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1825 char bonus_size[32];
1829 if (*print_header) {
1830 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1831 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1837 dn = DMU_META_DNODE(os);
1839 error = dmu_bonus_hold(os, object, FTAG, &db);
1841 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1843 bonus = db->db_data;
1844 bsize = db->db_size;
1845 dn = DB_DNODE((dmu_buf_impl_t *)db);
1847 dmu_object_info_from_dnode(dn, &doi);
1849 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1850 zdb_nicenum(doi.doi_data_block_size, dblk);
1851 zdb_nicenum(doi.doi_max_offset, lsize);
1852 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1853 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1854 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1855 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1856 doi.doi_max_offset);
1860 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1861 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1862 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1865 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1866 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1867 ZDB_COMPRESS_NAME(doi.doi_compress));
1870 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1871 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1872 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1874 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1875 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1876 "", "", "", "", "", bonus_size, "bonus",
1877 ZDB_OT_NAME(doi.doi_bonus_type));
1880 if (verbosity >= 4) {
1881 (void) printf("\tdnode flags: %s%s%s\n",
1882 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1884 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1885 "USERUSED_ACCOUNTED " : "",
1886 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1887 "SPILL_BLKPTR" : "");
1888 (void) printf("\tdnode maxblkid: %llu\n",
1889 (longlong_t)dn->dn_phys->dn_maxblkid);
1891 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1893 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1900 if (verbosity >= 5) {
1902 * Report the list of segments that comprise the object.
1906 uint64_t blkfill = 1;
1909 if (dn->dn_type == DMU_OT_DNODE) {
1911 blkfill = DNODES_PER_BLOCK;
1916 error = dnode_next_offset(dn,
1917 0, &start, minlvl, blkfill, 0);
1921 error = dnode_next_offset(dn,
1922 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1923 zdb_nicenum(end - start, segsize);
1924 (void) printf("\t\tsegment [%016llx, %016llx)"
1925 " size %5s\n", (u_longlong_t)start,
1926 (u_longlong_t)end, segsize);
1934 dmu_buf_rele(db, FTAG);
1937 static char *objset_types[DMU_OST_NUMTYPES] = {
1938 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1941 dump_dir(objset_t *os)
1943 dmu_objset_stats_t dds;
1944 uint64_t object, object_count;
1945 uint64_t refdbytes, usedobjs, scratch;
1947 char blkbuf[BP_SPRINTF_LEN + 20];
1948 char osname[ZFS_MAX_DATASET_NAME_LEN];
1949 char *type = "UNKNOWN";
1950 int verbosity = dump_opt['d'];
1951 int print_header = 1;
1954 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1955 dmu_objset_fast_stat(os, &dds);
1956 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1958 if (dds.dds_type < DMU_OST_NUMTYPES)
1959 type = objset_types[dds.dds_type];
1961 if (dds.dds_type == DMU_OST_META) {
1962 dds.dds_creation_txg = TXG_INITIAL;
1963 usedobjs = BP_GET_FILL(os->os_rootbp);
1964 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
1967 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1970 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1972 zdb_nicenum(refdbytes, numbuf);
1974 if (verbosity >= 4) {
1975 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
1976 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
1977 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
1982 dmu_objset_name(os, osname);
1984 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1985 "%s, %llu objects%s\n",
1986 osname, type, (u_longlong_t)dmu_objset_id(os),
1987 (u_longlong_t)dds.dds_creation_txg,
1988 numbuf, (u_longlong_t)usedobjs, blkbuf);
1990 if (zopt_objects != 0) {
1991 for (i = 0; i < zopt_objects; i++)
1992 dump_object(os, zopt_object[i], verbosity,
1994 (void) printf("\n");
1998 if (dump_opt['i'] != 0 || verbosity >= 2)
1999 dump_intent_log(dmu_objset_zil(os));
2001 if (dmu_objset_ds(os) != NULL)
2002 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
2007 if (BP_IS_HOLE(os->os_rootbp))
2010 dump_object(os, 0, verbosity, &print_header);
2012 if (DMU_USERUSED_DNODE(os) != NULL &&
2013 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2014 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2015 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2019 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2020 dump_object(os, object, verbosity, &print_header);
2024 ASSERT3U(object_count, ==, usedobjs);
2026 (void) printf("\n");
2028 if (error != ESRCH) {
2029 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2035 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2037 time_t timestamp = ub->ub_timestamp;
2039 (void) printf(header ? header : "");
2040 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2041 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2042 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2043 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2044 (void) printf("\ttimestamp = %llu UTC = %s",
2045 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
2046 if (dump_opt['u'] >= 3) {
2047 char blkbuf[BP_SPRINTF_LEN];
2048 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2049 (void) printf("\trootbp = %s\n", blkbuf);
2051 (void) printf(footer ? footer : "");
2055 dump_config(spa_t *spa)
2062 error = dmu_bonus_hold(spa->spa_meta_objset,
2063 spa->spa_config_object, FTAG, &db);
2066 nvsize = *(uint64_t *)db->db_data;
2067 dmu_buf_rele(db, FTAG);
2069 (void) printf("\nMOS Configuration:\n");
2070 dump_packed_nvlist(spa->spa_meta_objset,
2071 spa->spa_config_object, (void *)&nvsize, 1);
2073 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2074 (u_longlong_t)spa->spa_config_object, error);
2079 dump_cachefile(const char *cachefile)
2082 struct stat64 statbuf;
2086 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2087 (void) printf("cannot open '%s': %s\n", cachefile,
2092 if (fstat64(fd, &statbuf) != 0) {
2093 (void) printf("failed to stat '%s': %s\n", cachefile,
2098 if ((buf = malloc(statbuf.st_size)) == NULL) {
2099 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2100 (u_longlong_t)statbuf.st_size);
2104 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2105 (void) fprintf(stderr, "failed to read %llu bytes\n",
2106 (u_longlong_t)statbuf.st_size);
2112 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2113 (void) fprintf(stderr, "failed to unpack nvlist\n");
2119 dump_nvlist(config, 0);
2121 nvlist_free(config);
2124 #define ZDB_MAX_UB_HEADER_SIZE 32
2127 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2131 char header[ZDB_MAX_UB_HEADER_SIZE];
2133 vd.vdev_ashift = ashift;
2134 vdp->vdev_top = vdp;
2136 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2137 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2138 uberblock_t *ub = (void *)((char *)lbl + uoff);
2140 if (uberblock_verify(ub))
2142 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2143 "Uberblock[%d]\n", i);
2144 dump_uberblock(ub, header, "");
2149 dump_label(const char *dev)
2153 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
2154 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2155 struct stat64 statbuf;
2156 uint64_t psize, ashift;
2157 int len = strlen(dev) + 1;
2159 if (strncmp(dev, ZFS_DISK_ROOTD, strlen(ZFS_DISK_ROOTD)) == 0) {
2162 (void) snprintf(path, len, "%s%s", ZFS_RDISK_ROOTD,
2163 dev + strlen(ZFS_DISK_ROOTD));
2168 if ((fd = open64(path, O_RDONLY)) < 0) {
2169 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2174 if (fstat64(fd, &statbuf) != 0) {
2175 (void) printf("failed to stat '%s': %s\n", path,
2182 if (S_ISBLK(statbuf.st_mode)) {
2183 (void) printf("cannot use '%s': character device required\n",
2190 psize = statbuf.st_size;
2191 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2193 for (int l = 0; l < VDEV_LABELS; l++) {
2194 nvlist_t *config = NULL;
2196 (void) printf("--------------------------------------------\n");
2197 (void) printf("LABEL %d\n", l);
2198 (void) printf("--------------------------------------------\n");
2200 if (pread64(fd, &label, sizeof (label),
2201 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2202 (void) printf("failed to read label %d\n", l);
2206 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2207 (void) printf("failed to unpack label %d\n", l);
2208 ashift = SPA_MINBLOCKSHIFT;
2210 nvlist_t *vdev_tree = NULL;
2212 dump_nvlist(config, 4);
2213 if ((nvlist_lookup_nvlist(config,
2214 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2215 (nvlist_lookup_uint64(vdev_tree,
2216 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2217 ashift = SPA_MINBLOCKSHIFT;
2218 nvlist_free(config);
2221 dump_label_uberblocks(&label, ashift);
2228 static uint64_t dataset_feature_count[SPA_FEATURES];
2232 dump_one_dir(const char *dsname, void *arg)
2237 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2239 (void) printf("Could not open %s, error %d\n", dsname, error);
2243 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2244 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2246 ASSERT(spa_feature_table[f].fi_flags &
2247 ZFEATURE_FLAG_PER_DATASET);
2248 dataset_feature_count[f]++;
2252 dmu_objset_disown(os, FTAG);
2253 fuid_table_destroy();
2254 sa_loaded = B_FALSE;
2261 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2262 typedef struct zdb_blkstats {
2268 uint64_t zb_ditto_samevdev;
2269 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2273 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2275 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2276 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2277 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2278 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2280 static char *zdb_ot_extname[] = {
2287 #define ZB_TOTAL DN_MAX_LEVELS
2289 typedef struct zdb_cb {
2290 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2291 uint64_t zcb_dedup_asize;
2292 uint64_t zcb_dedup_blocks;
2293 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2294 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2297 uint64_t zcb_lastprint;
2298 uint64_t zcb_totalasize;
2299 uint64_t zcb_errors[256];
2306 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2307 dmu_object_type_t type)
2309 uint64_t refcnt = 0;
2311 ASSERT(type < ZDB_OT_TOTAL);
2313 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2316 for (int i = 0; i < 4; i++) {
2317 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2318 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2320 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2322 zb->zb_asize += BP_GET_ASIZE(bp);
2323 zb->zb_lsize += BP_GET_LSIZE(bp);
2324 zb->zb_psize += BP_GET_PSIZE(bp);
2328 * The histogram is only big enough to record blocks up to
2329 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2332 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2333 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2334 zb->zb_psize_histogram[idx]++;
2336 zb->zb_gangs += BP_COUNT_GANG(bp);
2338 switch (BP_GET_NDVAS(bp)) {
2340 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2341 DVA_GET_VDEV(&bp->blk_dva[1]))
2342 zb->zb_ditto_samevdev++;
2345 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2346 DVA_GET_VDEV(&bp->blk_dva[1])) +
2347 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2348 DVA_GET_VDEV(&bp->blk_dva[2])) +
2349 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2350 DVA_GET_VDEV(&bp->blk_dva[2]));
2352 zb->zb_ditto_samevdev++;
2358 if (BP_IS_EMBEDDED(bp)) {
2359 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2360 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2361 [BPE_GET_PSIZE(bp)]++;
2368 if (BP_GET_DEDUP(bp)) {
2372 ddt = ddt_select(zcb->zcb_spa, bp);
2374 dde = ddt_lookup(ddt, bp, B_FALSE);
2379 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2380 ddt_phys_decref(ddp);
2381 refcnt = ddp->ddp_refcnt;
2382 if (ddt_phys_total_refcnt(dde) == 0)
2383 ddt_remove(ddt, dde);
2388 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2389 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2390 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2395 zdb_blkptr_done(zio_t *zio)
2397 spa_t *spa = zio->io_spa;
2398 blkptr_t *bp = zio->io_bp;
2399 int ioerr = zio->io_error;
2400 zdb_cb_t *zcb = zio->io_private;
2401 zbookmark_phys_t *zb = &zio->io_bookmark;
2403 zio_data_buf_free(zio->io_data, zio->io_size);
2405 mutex_enter(&spa->spa_scrub_lock);
2406 spa->spa_scrub_inflight--;
2407 cv_broadcast(&spa->spa_scrub_io_cv);
2409 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2410 char blkbuf[BP_SPRINTF_LEN];
2412 zcb->zcb_haderrors = 1;
2413 zcb->zcb_errors[ioerr]++;
2415 if (dump_opt['b'] >= 2)
2416 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2420 (void) printf("zdb_blkptr_cb: "
2421 "Got error %d reading "
2422 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2424 (u_longlong_t)zb->zb_objset,
2425 (u_longlong_t)zb->zb_object,
2426 (u_longlong_t)zb->zb_level,
2427 (u_longlong_t)zb->zb_blkid,
2430 mutex_exit(&spa->spa_scrub_lock);
2435 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2436 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2438 zdb_cb_t *zcb = arg;
2439 dmu_object_type_t type;
2440 boolean_t is_metadata;
2445 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2446 char blkbuf[BP_SPRINTF_LEN];
2447 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2448 (void) printf("objset %llu object %llu "
2449 "level %lld offset 0x%llx %s\n",
2450 (u_longlong_t)zb->zb_objset,
2451 (u_longlong_t)zb->zb_object,
2452 (longlong_t)zb->zb_level,
2453 (u_longlong_t)blkid2offset(dnp, bp, zb),
2460 type = BP_GET_TYPE(bp);
2462 zdb_count_block(zcb, zilog, bp,
2463 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2465 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2467 if (!BP_IS_EMBEDDED(bp) &&
2468 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2469 size_t size = BP_GET_PSIZE(bp);
2470 void *data = zio_data_buf_alloc(size);
2471 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2473 /* If it's an intent log block, failure is expected. */
2474 if (zb->zb_level == ZB_ZIL_LEVEL)
2475 flags |= ZIO_FLAG_SPECULATIVE;
2477 mutex_enter(&spa->spa_scrub_lock);
2478 while (spa->spa_scrub_inflight > max_inflight)
2479 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2480 spa->spa_scrub_inflight++;
2481 mutex_exit(&spa->spa_scrub_lock);
2483 zio_nowait(zio_read(NULL, spa, bp, data, size,
2484 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2487 zcb->zcb_readfails = 0;
2489 /* only call gethrtime() every 100 blocks */
2496 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2497 uint64_t now = gethrtime();
2499 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2501 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2503 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2505 zfs_nicenum(bytes, buf, sizeof (buf));
2506 (void) fprintf(stderr,
2507 "\r%5s completed (%4dMB/s) "
2508 "estimated time remaining: %uhr %02umin %02usec ",
2509 buf, kb_per_sec / 1024,
2510 sec_remaining / 60 / 60,
2511 sec_remaining / 60 % 60,
2512 sec_remaining % 60);
2514 zcb->zcb_lastprint = now;
2521 zdb_leak(void *arg, uint64_t start, uint64_t size)
2525 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2526 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2529 static metaslab_ops_t zdb_metaslab_ops = {
2534 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2536 ddt_bookmark_t ddb = { 0 };
2540 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2542 ddt_phys_t *ddp = dde.dde_phys;
2544 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2547 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2549 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2550 if (ddp->ddp_phys_birth == 0)
2552 ddt_bp_create(ddb.ddb_checksum,
2553 &dde.dde_key, ddp, &blk);
2554 if (p == DDT_PHYS_DITTO) {
2555 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2557 zcb->zcb_dedup_asize +=
2558 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2559 zcb->zcb_dedup_blocks++;
2562 if (!dump_opt['L']) {
2563 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2565 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2570 ASSERT(error == ENOENT);
2574 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2578 if (!dump_opt['L']) {
2579 vdev_t *rvd = spa->spa_root_vdev;
2580 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
2581 vdev_t *vd = rvd->vdev_child[c];
2582 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
2583 metaslab_t *msp = vd->vdev_ms[m];
2584 mutex_enter(&msp->ms_lock);
2585 metaslab_unload(msp);
2588 * For leak detection, we overload the metaslab
2589 * ms_tree to contain allocated segments
2590 * instead of free segments. As a result,
2591 * we can't use the normal metaslab_load/unload
2594 if (msp->ms_sm != NULL) {
2595 (void) fprintf(stderr,
2596 "\rloading space map for "
2597 "vdev %llu of %llu, "
2598 "metaslab %llu of %llu ...",
2600 (longlong_t)rvd->vdev_children,
2602 (longlong_t)vd->vdev_ms_count);
2604 msp->ms_ops = &zdb_metaslab_ops;
2607 * We don't want to spend the CPU
2608 * manipulating the size-ordered
2609 * tree, so clear the range_tree
2612 msp->ms_tree->rt_ops = NULL;
2613 VERIFY0(space_map_load(msp->ms_sm,
2614 msp->ms_tree, SM_ALLOC));
2615 msp->ms_loaded = B_TRUE;
2617 mutex_exit(&msp->ms_lock);
2620 (void) fprintf(stderr, "\n");
2623 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2625 zdb_ddt_leak_init(spa, zcb);
2627 spa_config_exit(spa, SCL_CONFIG, FTAG);
2631 zdb_leak_fini(spa_t *spa)
2633 if (!dump_opt['L']) {
2634 vdev_t *rvd = spa->spa_root_vdev;
2635 for (int c = 0; c < rvd->vdev_children; c++) {
2636 vdev_t *vd = rvd->vdev_child[c];
2637 for (int m = 0; m < vd->vdev_ms_count; m++) {
2638 metaslab_t *msp = vd->vdev_ms[m];
2639 mutex_enter(&msp->ms_lock);
2642 * The ms_tree has been overloaded to
2643 * contain allocated segments. Now that we
2644 * finished traversing all blocks, any
2645 * block that remains in the ms_tree
2646 * represents an allocated block that we
2647 * did not claim during the traversal.
2648 * Claimed blocks would have been removed
2651 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2652 msp->ms_loaded = B_FALSE;
2654 mutex_exit(&msp->ms_lock);
2662 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2664 zdb_cb_t *zcb = arg;
2666 if (dump_opt['b'] >= 5) {
2667 char blkbuf[BP_SPRINTF_LEN];
2668 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2669 (void) printf("[%s] %s\n",
2670 "deferred free", blkbuf);
2672 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2677 dump_block_stats(spa_t *spa)
2679 zdb_cb_t zcb = { 0 };
2680 zdb_blkstats_t *zb, *tzb;
2681 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2682 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2683 boolean_t leaks = B_FALSE;
2685 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2686 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2687 (dump_opt['c'] == 1) ? "metadata " : "",
2688 dump_opt['c'] ? "checksums " : "",
2689 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2690 !dump_opt['L'] ? "nothing leaked " : "");
2693 * Load all space maps as SM_ALLOC maps, then traverse the pool
2694 * claiming each block we discover. If the pool is perfectly
2695 * consistent, the space maps will be empty when we're done.
2696 * Anything left over is a leak; any block we can't claim (because
2697 * it's not part of any space map) is a double allocation,
2698 * reference to a freed block, or an unclaimed log block.
2700 zdb_leak_init(spa, &zcb);
2703 * If there's a deferred-free bplist, process that first.
2705 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2706 count_block_cb, &zcb, NULL);
2707 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2708 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2709 count_block_cb, &zcb, NULL);
2711 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2712 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2713 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2717 if (dump_opt['c'] > 1)
2718 flags |= TRAVERSE_PREFETCH_DATA;
2720 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2721 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2722 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2725 * If we've traversed the data blocks then we need to wait for those
2726 * I/Os to complete. We leverage "The Godfather" zio to wait on
2727 * all async I/Os to complete.
2729 if (dump_opt['c']) {
2730 for (int i = 0; i < max_ncpus; i++) {
2731 (void) zio_wait(spa->spa_async_zio_root[i]);
2732 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
2733 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2734 ZIO_FLAG_GODFATHER);
2738 if (zcb.zcb_haderrors) {
2739 (void) printf("\nError counts:\n\n");
2740 (void) printf("\t%5s %s\n", "errno", "count");
2741 for (int e = 0; e < 256; e++) {
2742 if (zcb.zcb_errors[e] != 0) {
2743 (void) printf("\t%5d %llu\n",
2744 e, (u_longlong_t)zcb.zcb_errors[e]);
2750 * Report any leaked segments.
2754 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2756 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2757 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2759 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2760 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2762 if (total_found == total_alloc) {
2764 (void) printf("\n\tNo leaks (block sum matches space"
2765 " maps exactly)\n");
2767 (void) printf("block traversal size %llu != alloc %llu "
2769 (u_longlong_t)total_found,
2770 (u_longlong_t)total_alloc,
2771 (dump_opt['L']) ? "unreachable" : "leaked",
2772 (longlong_t)(total_alloc - total_found));
2776 if (tzb->zb_count == 0)
2779 (void) printf("\n");
2780 (void) printf("\tbp count: %10llu\n",
2781 (u_longlong_t)tzb->zb_count);
2782 (void) printf("\tganged count: %10llu\n",
2783 (longlong_t)tzb->zb_gangs);
2784 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2785 (u_longlong_t)tzb->zb_lsize,
2786 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2787 (void) printf("\tbp physical: %10llu avg:"
2788 " %6llu compression: %6.2f\n",
2789 (u_longlong_t)tzb->zb_psize,
2790 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2791 (double)tzb->zb_lsize / tzb->zb_psize);
2792 (void) printf("\tbp allocated: %10llu avg:"
2793 " %6llu compression: %6.2f\n",
2794 (u_longlong_t)tzb->zb_asize,
2795 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2796 (double)tzb->zb_lsize / tzb->zb_asize);
2797 (void) printf("\tbp deduped: %10llu ref>1:"
2798 " %6llu deduplication: %6.2f\n",
2799 (u_longlong_t)zcb.zcb_dedup_asize,
2800 (u_longlong_t)zcb.zcb_dedup_blocks,
2801 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2802 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2803 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2805 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2806 if (zcb.zcb_embedded_blocks[i] == 0)
2808 (void) printf("\n");
2809 (void) printf("\tadditional, non-pointer bps of type %u: "
2811 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2813 if (dump_opt['b'] >= 3) {
2814 (void) printf("\t number of (compressed) bytes: "
2816 dump_histogram(zcb.zcb_embedded_histogram[i],
2817 sizeof (zcb.zcb_embedded_histogram[i]) /
2818 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2822 if (tzb->zb_ditto_samevdev != 0) {
2823 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2824 (longlong_t)tzb->zb_ditto_samevdev);
2827 if (dump_opt['b'] >= 2) {
2829 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2830 "\t avg\t comp\t%%Total\tType\n");
2832 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2833 char csize[32], lsize[32], psize[32], asize[32];
2834 char avg[32], gang[32];
2837 if (t < DMU_OT_NUMTYPES)
2838 typename = dmu_ot[t].ot_name;
2840 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2842 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2843 (void) printf("%6s\t%5s\t%5s\t%5s"
2844 "\t%5s\t%5s\t%6s\t%s\n",
2856 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2857 level = (l == -1 ? ZB_TOTAL : l);
2858 zb = &zcb.zcb_type[level][t];
2860 if (zb->zb_asize == 0)
2863 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2866 if (level == 0 && zb->zb_asize ==
2867 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2870 zdb_nicenum(zb->zb_count, csize);
2871 zdb_nicenum(zb->zb_lsize, lsize);
2872 zdb_nicenum(zb->zb_psize, psize);
2873 zdb_nicenum(zb->zb_asize, asize);
2874 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2875 zdb_nicenum(zb->zb_gangs, gang);
2877 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2879 csize, lsize, psize, asize, avg,
2880 (double)zb->zb_lsize / zb->zb_psize,
2881 100.0 * zb->zb_asize / tzb->zb_asize);
2883 if (level == ZB_TOTAL)
2884 (void) printf("%s\n", typename);
2886 (void) printf(" L%d %s\n",
2889 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
2890 (void) printf("\t number of ganged "
2891 "blocks: %s\n", gang);
2894 if (dump_opt['b'] >= 4) {
2895 (void) printf("psize "
2896 "(in 512-byte sectors): "
2897 "number of blocks\n");
2898 dump_histogram(zb->zb_psize_histogram,
2899 PSIZE_HISTO_SIZE, 0);
2905 (void) printf("\n");
2910 if (zcb.zcb_haderrors)
2916 typedef struct zdb_ddt_entry {
2918 uint64_t zdde_ref_blocks;
2919 uint64_t zdde_ref_lsize;
2920 uint64_t zdde_ref_psize;
2921 uint64_t zdde_ref_dsize;
2922 avl_node_t zdde_node;
2927 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2928 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2930 avl_tree_t *t = arg;
2932 zdb_ddt_entry_t *zdde, zdde_search;
2934 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
2937 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2938 (void) printf("traversing objset %llu, %llu objects, "
2939 "%lu blocks so far\n",
2940 (u_longlong_t)zb->zb_objset,
2941 (u_longlong_t)BP_GET_FILL(bp),
2945 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2946 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2949 ddt_key_fill(&zdde_search.zdde_key, bp);
2951 zdde = avl_find(t, &zdde_search, &where);
2954 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2955 zdde->zdde_key = zdde_search.zdde_key;
2956 avl_insert(t, zdde, where);
2959 zdde->zdde_ref_blocks += 1;
2960 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2961 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2962 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2968 dump_simulated_ddt(spa_t *spa)
2971 void *cookie = NULL;
2972 zdb_ddt_entry_t *zdde;
2973 ddt_histogram_t ddh_total = { 0 };
2974 ddt_stat_t dds_total = { 0 };
2976 avl_create(&t, ddt_entry_compare,
2977 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2979 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2981 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2982 zdb_ddt_add_cb, &t);
2984 spa_config_exit(spa, SCL_CONFIG, FTAG);
2986 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2988 uint64_t refcnt = zdde->zdde_ref_blocks;
2989 ASSERT(refcnt != 0);
2991 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2992 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2993 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2994 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2996 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2997 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2998 dds.dds_ref_psize = zdde->zdde_ref_psize;
2999 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3001 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3004 umem_free(zdde, sizeof (*zdde));
3009 ddt_histogram_stat(&dds_total, &ddh_total);
3011 (void) printf("Simulated DDT histogram:\n");
3013 zpool_dump_ddt(&dds_total, &ddh_total);
3015 dump_dedup_ratio(&dds_total);
3019 dump_zpool(spa_t *spa)
3021 dsl_pool_t *dp = spa_get_dsl(spa);
3024 if (dump_opt['S']) {
3025 dump_simulated_ddt(spa);
3029 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3030 (void) printf("\nCached configuration:\n");
3031 dump_nvlist(spa->spa_config, 8);
3038 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3043 if (dump_opt['d'] > 2 || dump_opt['m'])
3044 dump_metaslabs(spa);
3046 dump_metaslab_groups(spa);
3048 if (dump_opt['d'] || dump_opt['i']) {
3049 dump_dir(dp->dp_meta_objset);
3050 if (dump_opt['d'] >= 3) {
3051 dump_full_bpobj(&spa->spa_deferred_bpobj,
3052 "Deferred frees", 0);
3053 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3055 &spa->spa_dsl_pool->dp_free_bpobj,
3056 "Pool snapshot frees", 0);
3059 if (spa_feature_is_active(spa,
3060 SPA_FEATURE_ASYNC_DESTROY)) {
3061 dump_bptree(spa->spa_meta_objset,
3062 spa->spa_dsl_pool->dp_bptree_obj,
3063 "Pool dataset frees");
3065 dump_dtl(spa->spa_root_vdev, 0);
3067 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3068 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3070 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3073 if (!(spa_feature_table[f].fi_flags &
3074 ZFEATURE_FLAG_PER_DATASET)) {
3075 ASSERT0(dataset_feature_count[f]);
3078 (void) feature_get_refcount(spa,
3079 &spa_feature_table[f], &refcount);
3080 if (dataset_feature_count[f] != refcount) {
3081 (void) printf("%s feature refcount mismatch: "
3082 "%lld datasets != %lld refcount\n",
3083 spa_feature_table[f].fi_uname,
3084 (longlong_t)dataset_feature_count[f],
3085 (longlong_t)refcount);
3088 (void) printf("Verified %s feature refcount "
3089 "of %llu is correct\n",
3090 spa_feature_table[f].fi_uname,
3091 (longlong_t)refcount);
3095 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3096 rc = dump_block_stats(spa);
3099 rc = verify_spacemap_refcounts(spa);
3102 show_pool_stats(spa);
3111 #define ZDB_FLAG_CHECKSUM 0x0001
3112 #define ZDB_FLAG_DECOMPRESS 0x0002
3113 #define ZDB_FLAG_BSWAP 0x0004
3114 #define ZDB_FLAG_GBH 0x0008
3115 #define ZDB_FLAG_INDIRECT 0x0010
3116 #define ZDB_FLAG_PHYS 0x0020
3117 #define ZDB_FLAG_RAW 0x0040
3118 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3123 zdb_print_blkptr(blkptr_t *bp, int flags)
3125 char blkbuf[BP_SPRINTF_LEN];
3127 if (flags & ZDB_FLAG_BSWAP)
3128 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3130 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3131 (void) printf("%s\n", blkbuf);
3135 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3139 for (i = 0; i < nbps; i++)
3140 zdb_print_blkptr(&bp[i], flags);
3144 zdb_dump_gbh(void *buf, int flags)
3146 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3150 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3152 if (flags & ZDB_FLAG_BSWAP)
3153 byteswap_uint64_array(buf, size);
3154 (void) write(1, buf, size);
3158 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3160 uint64_t *d = (uint64_t *)buf;
3161 int nwords = size / sizeof (uint64_t);
3162 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3168 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3170 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3172 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3174 for (i = 0; i < nwords; i += 2) {
3175 (void) printf("%06llx: %016llx %016llx ",
3176 (u_longlong_t)(i * sizeof (uint64_t)),
3177 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3178 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3181 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3182 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3183 (void) printf("\n");
3188 * There are two acceptable formats:
3189 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3190 * child[.child]* - For example: 0.1.1
3192 * The second form can be used to specify arbitrary vdevs anywhere
3193 * in the heirarchy. For example, in a pool with a mirror of
3194 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3197 zdb_vdev_lookup(vdev_t *vdev, char *path)
3205 /* First, assume the x.x.x.x format */
3206 i = (int)strtoul(path, &s, 10);
3207 if (s == path || (s && *s != '.' && *s != '\0'))
3209 if (i < 0 || i >= vdev->vdev_children)
3212 vdev = vdev->vdev_child[i];
3215 return (zdb_vdev_lookup(vdev, s+1));
3218 for (i = 0; i < vdev->vdev_children; i++) {
3219 vdev_t *vc = vdev->vdev_child[i];
3221 if (vc->vdev_path == NULL) {
3222 vc = zdb_vdev_lookup(vc, path);
3229 p = strrchr(vc->vdev_path, '/');
3230 p = p ? p + 1 : vc->vdev_path;
3231 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3233 if (strcmp(vc->vdev_path, path) == 0)
3235 if (strcmp(p, path) == 0)
3237 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3245 * Read a block from a pool and print it out. The syntax of the
3246 * block descriptor is:
3248 * pool:vdev_specifier:offset:size[:flags]
3250 * pool - The name of the pool you wish to read from
3251 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3252 * offset - offset, in hex, in bytes
3253 * size - Amount of data to read, in hex, in bytes
3254 * flags - A string of characters specifying options
3255 * b: Decode a blkptr at given offset within block
3256 * *c: Calculate and display checksums
3257 * d: Decompress data before dumping
3258 * e: Byteswap data before dumping
3259 * g: Display data as a gang block header
3260 * i: Display as an indirect block
3261 * p: Do I/O to physical offset
3262 * r: Dump raw data to stdout
3264 * * = not yet implemented
3267 zdb_read_block(char *thing, spa_t *spa)
3269 blkptr_t blk, *bp = &blk;
3270 dva_t *dva = bp->blk_dva;
3272 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3275 void *pbuf, *lbuf, *buf;
3276 char *s, *p, *dup, *vdev, *flagstr;
3279 dup = strdup(thing);
3280 s = strtok(dup, ":");
3282 s = strtok(NULL, ":");
3283 offset = strtoull(s ? s : "", NULL, 16);
3284 s = strtok(NULL, ":");
3285 size = strtoull(s ? s : "", NULL, 16);
3286 s = strtok(NULL, ":");
3287 flagstr = s ? s : "";
3291 s = "size must not be zero";
3292 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3293 s = "size must be a multiple of sector size";
3294 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3295 s = "offset must be a multiple of sector size";
3297 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3302 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3303 for (i = 0; flagstr[i]; i++) {
3304 int bit = flagbits[(uchar_t)flagstr[i]];
3307 (void) printf("***Invalid flag: %c\n",
3313 /* If it's not something with an argument, keep going */
3314 if ((bit & (ZDB_FLAG_CHECKSUM |
3315 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3318 p = &flagstr[i + 1];
3319 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3320 blkptr_offset = strtoull(p, &p, 16);
3321 if (*p != ':' && *p != '\0') {
3322 (void) printf("***Invalid flag arg: '%s'\n", s);
3326 i += p - &flagstr[i + 1]; /* skip over the number */
3330 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3332 (void) printf("***Invalid vdev: %s\n", vdev);
3337 (void) fprintf(stderr, "Found vdev: %s\n",
3340 (void) fprintf(stderr, "Found vdev type: %s\n",
3341 vd->vdev_ops->vdev_op_type);
3347 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3348 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3352 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3353 DVA_SET_OFFSET(&dva[0], offset);
3354 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3355 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3357 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3359 BP_SET_LSIZE(bp, lsize);
3360 BP_SET_PSIZE(bp, psize);
3361 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3362 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3363 BP_SET_TYPE(bp, DMU_OT_NONE);
3364 BP_SET_LEVEL(bp, 0);
3365 BP_SET_DEDUP(bp, 0);
3366 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3368 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3369 zio = zio_root(spa, NULL, NULL, 0);
3371 if (vd == vd->vdev_top) {
3373 * Treat this as a normal block read.
3375 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3376 ZIO_PRIORITY_SYNC_READ,
3377 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3380 * Treat this as a vdev child I/O.
3382 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3383 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3384 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3385 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3386 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3389 error = zio_wait(zio);
3390 spa_config_exit(spa, SCL_STATE, FTAG);
3393 (void) printf("Read of %s failed, error: %d\n", thing, error);
3397 if (flags & ZDB_FLAG_DECOMPRESS) {
3399 * We don't know how the data was compressed, so just try
3400 * every decompress function at every inflated blocksize.
3402 enum zio_compress c;
3403 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3404 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3406 bcopy(pbuf, pbuf2, psize);
3408 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3409 SPA_MAXBLOCKSIZE - psize) == 0);
3411 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3412 SPA_MAXBLOCKSIZE - psize) == 0);
3414 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3415 lsize -= SPA_MINBLOCKSIZE) {
3416 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3417 if (zio_decompress_data(c, pbuf, lbuf,
3418 psize, lsize) == 0 &&
3419 zio_decompress_data(c, pbuf2, lbuf2,
3420 psize, lsize) == 0 &&
3421 bcmp(lbuf, lbuf2, lsize) == 0)
3424 if (c != ZIO_COMPRESS_FUNCTIONS)
3426 lsize -= SPA_MINBLOCKSIZE;
3429 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3430 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3432 if (lsize <= psize) {
3433 (void) printf("Decompress of %s failed\n", thing);
3443 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3444 zdb_print_blkptr((blkptr_t *)(void *)
3445 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3446 else if (flags & ZDB_FLAG_RAW)
3447 zdb_dump_block_raw(buf, size, flags);
3448 else if (flags & ZDB_FLAG_INDIRECT)
3449 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3451 else if (flags & ZDB_FLAG_GBH)
3452 zdb_dump_gbh(buf, flags);
3454 zdb_dump_block(thing, buf, size, flags);
3457 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3458 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3463 pool_match(nvlist_t *cfg, char *tgt)
3465 uint64_t v, guid = strtoull(tgt, NULL, 0);
3469 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3472 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3473 return (strcmp(s, tgt) == 0);
3479 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3482 nvlist_t *match = NULL;
3487 importargs_t args = { 0 };
3491 args.can_be_active = B_TRUE;
3493 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3498 pools = zpool_search_import(g_zfs, &args);
3500 if (pools != NULL) {
3501 nvpair_t *elem = NULL;
3502 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3503 verify(nvpair_value_nvlist(elem, configp) == 0);
3504 if (pool_match(*configp, *target)) {
3506 if (match != NULL) {
3507 /* print previously found config */
3509 (void) printf("%s\n", name);
3510 dump_nvlist(match, 8);
3513 (void) printf("%s\n",
3515 dump_nvlist(*configp, 8);
3518 name = nvpair_name(elem);
3524 (void) fatal("\tMatched %d pools - use pool GUID "
3525 "instead of pool name or \n"
3526 "\tpool name part of a dataset name to select pool", count);
3531 * If pool GUID was specified for pool id, replace it with pool name
3533 if (name && (strstr(*target, name) != *target)) {
3534 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3536 *target = umem_alloc(sz, UMEM_NOFAIL);
3537 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3540 *configp = name ? match : NULL;
3546 main(int argc, char **argv)
3549 struct rlimit rl = { 1024, 1024 };
3551 objset_t *os = NULL;
3555 char **searchdirs = NULL;
3558 nvlist_t *policy = NULL;
3559 uint64_t max_txg = UINT64_MAX;
3560 int rewind = ZPOOL_NEVER_REWIND;
3561 char *spa_config_path_env;
3562 boolean_t target_is_spa = B_TRUE;
3564 (void) setrlimit(RLIMIT_NOFILE, &rl);
3565 (void) enable_extended_FILE_stdio(-1, -1);
3567 dprintf_setup(&argc, argv);
3570 * If there is an environment variable SPA_CONFIG_PATH it overrides
3571 * default spa_config_path setting. If -U flag is specified it will
3572 * override this environment variable settings once again.
3574 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3575 if (spa_config_path_env != NULL)
3576 spa_config_path = spa_config_path_env;
3578 while ((c = getopt(argc, argv,
3579 "bcdhilmMI:suCDRSAFLXx:evp:t:U:P")) != -1) {
3607 max_inflight = strtoull(optarg, NULL, 0);
3608 if (max_inflight == 0) {
3609 (void) fprintf(stderr, "maximum number "
3610 "of inflight I/Os must be greater "
3616 if (searchdirs == NULL) {
3617 searchdirs = umem_alloc(sizeof (char *),
3620 char **tmp = umem_alloc((nsearch + 1) *
3621 sizeof (char *), UMEM_NOFAIL);
3622 bcopy(searchdirs, tmp, nsearch *
3624 umem_free(searchdirs,
3625 nsearch * sizeof (char *));
3628 searchdirs[nsearch++] = optarg;
3631 max_txg = strtoull(optarg, NULL, 0);
3632 if (max_txg < TXG_INITIAL) {
3633 (void) fprintf(stderr, "incorrect txg "
3634 "specified: %s\n", optarg);
3639 spa_config_path = optarg;
3645 vn_dumpdir = optarg;
3653 if (!dump_opt['e'] && searchdirs != NULL) {
3654 (void) fprintf(stderr, "-p option requires use of -e\n");
3659 * ZDB does not typically re-read blocks; therefore limit the ARC
3660 * to 256 MB, which can be used entirely for metadata.
3662 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
3665 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
3666 * "zdb -b" uses traversal prefetch which uses async reads.
3667 * For good performance, let several of them be active at once.
3669 zfs_vdev_async_read_max_active = 10;
3672 g_zfs = libzfs_init();
3674 fatal("Fail to initialize zfs");
3677 verbose = MAX(verbose, 1);
3679 for (c = 0; c < 256; c++) {
3680 if (dump_all && !strchr("elAFLRSXP", c))
3683 dump_opt[c] += verbose;
3686 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3687 zfs_recover = (dump_opt['A'] > 1);
3692 if (argc < 2 && dump_opt['R'])
3695 if (!dump_opt['e'] && dump_opt['C']) {
3696 dump_cachefile(spa_config_path);
3702 if (dump_opt['l']) {
3703 dump_label(argv[0]);
3707 if (dump_opt['X'] || dump_opt['F'])
3708 rewind = ZPOOL_DO_REWIND |
3709 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3711 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3712 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3713 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3714 fatal("internal error: %s", strerror(ENOMEM));
3719 if (dump_opt['e']) {
3720 nvlist_t *cfg = NULL;
3721 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3725 if (dump_opt['C'] > 1) {
3726 (void) printf("\nConfiguration for import:\n");
3727 dump_nvlist(cfg, 8);
3729 if (nvlist_add_nvlist(cfg,
3730 ZPOOL_REWIND_POLICY, policy) != 0) {
3731 fatal("can't open '%s': %s",
3732 target, strerror(ENOMEM));
3734 if ((error = spa_import(name, cfg, NULL,
3735 ZFS_IMPORT_MISSING_LOG)) != 0) {
3736 error = spa_import(name, cfg, NULL,
3737 ZFS_IMPORT_VERBATIM);
3742 if (strpbrk(target, "/@") != NULL) {
3745 target_is_spa = B_FALSE;
3747 * Remove any trailing slash. Later code would get confused
3748 * by it, but we want to allow it so that "pool/" can
3749 * indicate that we want to dump the topmost filesystem,
3750 * rather than the whole pool.
3752 targetlen = strlen(target);
3753 if (targetlen != 0 && target[targetlen - 1] == '/')
3754 target[targetlen - 1] = '\0';
3758 if (target_is_spa || dump_opt['R']) {
3759 error = spa_open_rewind(target, &spa, FTAG, policy,
3763 * If we're missing the log device then
3764 * try opening the pool after clearing the
3767 mutex_enter(&spa_namespace_lock);
3768 if ((spa = spa_lookup(target)) != NULL &&
3769 spa->spa_log_state == SPA_LOG_MISSING) {
3770 spa->spa_log_state = SPA_LOG_CLEAR;
3773 mutex_exit(&spa_namespace_lock);
3776 error = spa_open_rewind(target, &spa,
3777 FTAG, policy, NULL);
3781 error = dmu_objset_own(target, DMU_OST_ANY,
3785 nvlist_free(policy);
3788 fatal("can't open '%s': %s", target, strerror(error));
3792 if (!dump_opt['R']) {
3794 zopt_objects = argc;
3795 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3796 for (i = 0; i < zopt_objects; i++) {
3798 zopt_object[i] = strtoull(argv[i], NULL, 0);
3799 if (zopt_object[i] == 0 && errno != 0)
3800 fatal("bad number %s: %s",
3801 argv[i], strerror(errno));
3806 } else if (zopt_objects > 0 && !dump_opt['m']) {
3807 dump_dir(spa->spa_meta_objset);
3812 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3813 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3814 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3815 flagbits['e'] = ZDB_FLAG_BSWAP;
3816 flagbits['g'] = ZDB_FLAG_GBH;
3817 flagbits['i'] = ZDB_FLAG_INDIRECT;
3818 flagbits['p'] = ZDB_FLAG_PHYS;
3819 flagbits['r'] = ZDB_FLAG_RAW;
3821 for (i = 0; i < argc; i++)
3822 zdb_read_block(argv[i], spa);
3825 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3827 fuid_table_destroy();
3828 sa_loaded = B_FALSE;