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, 2014 by Delphix. All rights reserved.
29 #include <stdio_ext.h>
32 #include <sys/zfs_context.h>
34 #include <sys/spa_impl.h>
37 #include <sys/fs/zfs.h>
38 #include <sys/zfs_znode.h>
39 #include <sys/zfs_sa.h>
41 #include <sys/sa_impl.h>
43 #include <sys/vdev_impl.h>
44 #include <sys/metaslab_impl.h>
45 #include <sys/dmu_objset.h>
46 #include <sys/dsl_dir.h>
47 #include <sys/dsl_dataset.h>
48 #include <sys/dsl_pool.h>
51 #include <sys/zil_impl.h>
53 #include <sys/resource.h>
54 #include <sys/dmu_traverse.h>
55 #include <sys/zio_checksum.h>
56 #include <sys/zio_compress.h>
57 #include <sys/zfs_fuid.h>
60 #include <sys/zfeature.h>
61 #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;
80 boolean_t zfs_recover;
83 const char cmdname[] = "zdb";
84 uint8_t dump_opt[256];
86 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
88 extern void dump_intent_log(zilog_t *);
89 uint64_t *zopt_object = NULL;
91 libzfs_handle_t *g_zfs;
92 uint64_t max_inflight = 200;
95 * These libumem hooks provide a reasonable set of defaults for the allocator's
96 * debugging facilities.
101 return ("default,verbose"); /* $UMEM_DEBUG setting */
105 _umem_logging_init(void)
107 return ("fail,contents"); /* $UMEM_LOGGING setting */
113 (void) fprintf(stderr,
114 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
115 "[-U config] [-M inflight I/Os] [-x dumpdir] poolname [object...]\n"
116 " %s [-divPA] [-e -p path...] [-U config] dataset "
118 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
119 "poolname [vdev [metaslab...]]\n"
120 " %s -R [-A] [-e [-p path...]] poolname "
121 "vdev:offset:size[:flags]\n"
122 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
123 " %s -l [-uA] device\n"
124 " %s -C [-A] [-U config]\n\n",
125 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
127 (void) fprintf(stderr, " Dataset name must include at least one "
128 "separator character '/' or '@'\n");
129 (void) fprintf(stderr, " If dataset name is specified, only that "
130 "dataset is dumped\n");
131 (void) fprintf(stderr, " If object numbers are specified, only "
132 "those objects are dumped\n\n");
133 (void) fprintf(stderr, " Options to control amount of output:\n");
134 (void) fprintf(stderr, " -u uberblock\n");
135 (void) fprintf(stderr, " -d dataset(s)\n");
136 (void) fprintf(stderr, " -i intent logs\n");
137 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
138 (void) fprintf(stderr, " -h pool history\n");
139 (void) fprintf(stderr, " -b block statistics\n");
140 (void) fprintf(stderr, " -m metaslabs\n");
141 (void) fprintf(stderr, " -c checksum all metadata (twice for "
142 "all data) blocks\n");
143 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
144 (void) fprintf(stderr, " -D dedup statistics\n");
145 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
146 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
147 (void) fprintf(stderr, " -l dump label contents\n");
148 (void) fprintf(stderr, " -L disable leak tracking (do not "
149 "load spacemaps)\n");
150 (void) fprintf(stderr, " -R read and display block from a "
152 (void) fprintf(stderr, " Below options are intended for use "
153 "with other options:\n");
154 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
155 "panic recovery (-AA) or both (-AAA)\n");
156 (void) fprintf(stderr, " -F attempt automatic rewind within "
157 "safe range of transaction groups\n");
158 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
160 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
161 "work with dataset)\n");
162 (void) fprintf(stderr, " -e pool is exported/destroyed/"
163 "has altroot/not in a cachefile\n");
164 (void) fprintf(stderr, " -p <path> -- use one or more with "
165 "-e to specify path to vdev dir\n");
166 (void) fprintf(stderr, " -x <dumpdir> -- "
167 "dump all read blocks into specified directory\n");
168 (void) fprintf(stderr, " -P print numbers in parseable form\n");
169 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
170 "searching for uberblocks\n");
171 (void) fprintf(stderr, " -M <number of inflight I/Os> -- "
172 "specify the maximum number of "
173 "checksumming I/Os [default is 200]\n");
174 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
175 "to make only that option verbose\n");
176 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
181 * Called for usage errors that are discovered after a call to spa_open(),
182 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
186 fatal(const char *fmt, ...)
191 (void) fprintf(stderr, "%s: ", cmdname);
192 (void) vfprintf(stderr, fmt, ap);
194 (void) fprintf(stderr, "\n");
201 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
204 size_t nvsize = *(uint64_t *)data;
205 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
207 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
209 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
211 umem_free(packed, nvsize);
220 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
222 spa_history_phys_t *shp = data;
227 (void) printf("\t\tpool_create_len = %llu\n",
228 (u_longlong_t)shp->sh_pool_create_len);
229 (void) printf("\t\tphys_max_off = %llu\n",
230 (u_longlong_t)shp->sh_phys_max_off);
231 (void) printf("\t\tbof = %llu\n",
232 (u_longlong_t)shp->sh_bof);
233 (void) printf("\t\teof = %llu\n",
234 (u_longlong_t)shp->sh_eof);
235 (void) printf("\t\trecords_lost = %llu\n",
236 (u_longlong_t)shp->sh_records_lost);
240 zdb_nicenum(uint64_t num, char *buf)
243 (void) sprintf(buf, "%llu", (longlong_t)num);
248 const char histo_stars[] = "****************************************";
249 const int histo_width = sizeof (histo_stars) - 1;
252 dump_histogram(const uint64_t *histo, int size, int offset)
255 int minidx = size - 1;
259 for (i = 0; i < size; i++) {
262 if (histo[i] > 0 && i > maxidx)
264 if (histo[i] > 0 && i < minidx)
268 if (max < histo_width)
271 for (i = minidx; i <= maxidx; i++) {
272 (void) printf("\t\t\t%3u: %6llu %s\n",
273 i + offset, (u_longlong_t)histo[i],
274 &histo_stars[(max - histo[i]) * histo_width / max]);
279 dump_zap_stats(objset_t *os, uint64_t object)
284 error = zap_get_stats(os, object, &zs);
288 if (zs.zs_ptrtbl_len == 0) {
289 ASSERT(zs.zs_num_blocks == 1);
290 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
291 (u_longlong_t)zs.zs_blocksize,
292 (u_longlong_t)zs.zs_num_entries);
296 (void) printf("\tFat ZAP stats:\n");
298 (void) printf("\t\tPointer table:\n");
299 (void) printf("\t\t\t%llu elements\n",
300 (u_longlong_t)zs.zs_ptrtbl_len);
301 (void) printf("\t\t\tzt_blk: %llu\n",
302 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
303 (void) printf("\t\t\tzt_numblks: %llu\n",
304 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
305 (void) printf("\t\t\tzt_shift: %llu\n",
306 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
307 (void) printf("\t\t\tzt_blks_copied: %llu\n",
308 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
309 (void) printf("\t\t\tzt_nextblk: %llu\n",
310 (u_longlong_t)zs.zs_ptrtbl_nextblk);
312 (void) printf("\t\tZAP entries: %llu\n",
313 (u_longlong_t)zs.zs_num_entries);
314 (void) printf("\t\tLeaf blocks: %llu\n",
315 (u_longlong_t)zs.zs_num_leafs);
316 (void) printf("\t\tTotal blocks: %llu\n",
317 (u_longlong_t)zs.zs_num_blocks);
318 (void) printf("\t\tzap_block_type: 0x%llx\n",
319 (u_longlong_t)zs.zs_block_type);
320 (void) printf("\t\tzap_magic: 0x%llx\n",
321 (u_longlong_t)zs.zs_magic);
322 (void) printf("\t\tzap_salt: 0x%llx\n",
323 (u_longlong_t)zs.zs_salt);
325 (void) printf("\t\tLeafs with 2^n pointers:\n");
326 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
328 (void) printf("\t\tBlocks with n*5 entries:\n");
329 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
331 (void) printf("\t\tBlocks n/10 full:\n");
332 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
334 (void) printf("\t\tEntries with n chunks:\n");
335 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
337 (void) printf("\t\tBuckets with n entries:\n");
338 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
343 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
349 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
351 (void) printf("\tUNKNOWN OBJECT TYPE\n");
356 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
362 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
368 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
371 zap_attribute_t attr;
375 dump_zap_stats(os, object);
378 for (zap_cursor_init(&zc, os, object);
379 zap_cursor_retrieve(&zc, &attr) == 0;
380 zap_cursor_advance(&zc)) {
381 (void) printf("\t\t%s = ", attr.za_name);
382 if (attr.za_num_integers == 0) {
386 prop = umem_zalloc(attr.za_num_integers *
387 attr.za_integer_length, UMEM_NOFAIL);
388 (void) zap_lookup(os, object, attr.za_name,
389 attr.za_integer_length, attr.za_num_integers, prop);
390 if (attr.za_integer_length == 1) {
391 (void) printf("%s", (char *)prop);
393 for (i = 0; i < attr.za_num_integers; i++) {
394 switch (attr.za_integer_length) {
397 ((uint16_t *)prop)[i]);
401 ((uint32_t *)prop)[i]);
404 (void) printf("%lld ",
405 (u_longlong_t)((int64_t *)prop)[i]);
411 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
413 zap_cursor_fini(&zc);
418 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
420 dump_zap_stats(os, object);
421 /* contents are printed elsewhere, properly decoded */
426 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
429 zap_attribute_t attr;
431 dump_zap_stats(os, object);
434 for (zap_cursor_init(&zc, os, object);
435 zap_cursor_retrieve(&zc, &attr) == 0;
436 zap_cursor_advance(&zc)) {
437 (void) printf("\t\t%s = ", attr.za_name);
438 if (attr.za_num_integers == 0) {
442 (void) printf(" %llx : [%d:%d:%d]\n",
443 (u_longlong_t)attr.za_first_integer,
444 (int)ATTR_LENGTH(attr.za_first_integer),
445 (int)ATTR_BSWAP(attr.za_first_integer),
446 (int)ATTR_NUM(attr.za_first_integer));
448 zap_cursor_fini(&zc);
453 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
456 zap_attribute_t attr;
457 uint16_t *layout_attrs;
460 dump_zap_stats(os, object);
463 for (zap_cursor_init(&zc, os, object);
464 zap_cursor_retrieve(&zc, &attr) == 0;
465 zap_cursor_advance(&zc)) {
466 (void) printf("\t\t%s = [", attr.za_name);
467 if (attr.za_num_integers == 0) {
472 VERIFY(attr.za_integer_length == 2);
473 layout_attrs = umem_zalloc(attr.za_num_integers *
474 attr.za_integer_length, UMEM_NOFAIL);
476 VERIFY(zap_lookup(os, object, attr.za_name,
477 attr.za_integer_length,
478 attr.za_num_integers, layout_attrs) == 0);
480 for (i = 0; i != attr.za_num_integers; i++)
481 (void) printf(" %d ", (int)layout_attrs[i]);
482 (void) printf("]\n");
483 umem_free(layout_attrs,
484 attr.za_num_integers * attr.za_integer_length);
486 zap_cursor_fini(&zc);
491 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
494 zap_attribute_t attr;
495 const char *typenames[] = {
496 /* 0 */ "not specified",
498 /* 2 */ "Character Device",
499 /* 3 */ "3 (invalid)",
501 /* 5 */ "5 (invalid)",
502 /* 6 */ "Block Device",
503 /* 7 */ "7 (invalid)",
504 /* 8 */ "Regular File",
505 /* 9 */ "9 (invalid)",
506 /* 10 */ "Symbolic Link",
507 /* 11 */ "11 (invalid)",
510 /* 14 */ "Event Port",
511 /* 15 */ "15 (invalid)",
514 dump_zap_stats(os, object);
517 for (zap_cursor_init(&zc, os, object);
518 zap_cursor_retrieve(&zc, &attr) == 0;
519 zap_cursor_advance(&zc)) {
520 (void) printf("\t\t%s = %lld (type: %s)\n",
521 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
522 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
524 zap_cursor_fini(&zc);
528 get_dtl_refcount(vdev_t *vd)
532 if (vd->vdev_ops->vdev_op_leaf) {
533 space_map_t *sm = vd->vdev_dtl_sm;
536 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
541 for (int c = 0; c < vd->vdev_children; c++)
542 refcount += get_dtl_refcount(vd->vdev_child[c]);
547 get_metaslab_refcount(vdev_t *vd)
551 if (vd->vdev_top == vd) {
552 for (int m = 0; m < vd->vdev_ms_count; m++) {
553 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
556 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
560 for (int c = 0; c < vd->vdev_children; c++)
561 refcount += get_metaslab_refcount(vd->vdev_child[c]);
567 verify_spacemap_refcounts(spa_t *spa)
569 uint64_t expected_refcount = 0;
570 uint64_t actual_refcount;
572 (void) feature_get_refcount(spa,
573 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
575 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
576 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
578 if (expected_refcount != actual_refcount) {
579 (void) printf("space map refcount mismatch: expected %lld != "
581 (longlong_t)expected_refcount,
582 (longlong_t)actual_refcount);
589 dump_spacemap(objset_t *os, space_map_t *sm)
591 uint64_t alloc, offset, entry;
592 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
593 "INVALID", "INVALID", "INVALID", "INVALID" };
599 * Print out the freelist entries in both encoded and decoded form.
602 for (offset = 0; offset < space_map_length(sm);
603 offset += sizeof (entry)) {
604 uint8_t mapshift = sm->sm_shift;
606 VERIFY0(dmu_read(os, space_map_object(sm), offset,
607 sizeof (entry), &entry, DMU_READ_PREFETCH));
608 if (SM_DEBUG_DECODE(entry)) {
610 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
611 (u_longlong_t)(offset / sizeof (entry)),
612 ddata[SM_DEBUG_ACTION_DECODE(entry)],
613 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
614 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
616 (void) printf("\t [%6llu] %c range:"
617 " %010llx-%010llx size: %06llx\n",
618 (u_longlong_t)(offset / sizeof (entry)),
619 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
620 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
621 mapshift) + sm->sm_start),
622 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
623 mapshift) + sm->sm_start +
624 (SM_RUN_DECODE(entry) << mapshift)),
625 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
626 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
627 alloc += SM_RUN_DECODE(entry) << mapshift;
629 alloc -= SM_RUN_DECODE(entry) << mapshift;
632 if (alloc != space_map_allocated(sm)) {
633 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
634 "with space map summary (%llu)\n",
635 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
640 dump_metaslab_stats(metaslab_t *msp)
643 range_tree_t *rt = msp->ms_tree;
644 avl_tree_t *t = &msp->ms_size_tree;
645 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
647 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
649 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
650 "segments", avl_numnodes(t), "maxsize", maxbuf,
651 "freepct", free_pct);
652 (void) printf("\tIn-memory histogram:\n");
653 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
657 dump_metaslab(metaslab_t *msp)
659 vdev_t *vd = msp->ms_group->mg_vd;
660 spa_t *spa = vd->vdev_spa;
661 space_map_t *sm = msp->ms_sm;
664 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
667 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
668 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
669 (u_longlong_t)space_map_object(sm), freebuf);
671 if (dump_opt['m'] > 2 && !dump_opt['L']) {
672 mutex_enter(&msp->ms_lock);
673 metaslab_load_wait(msp);
674 if (!msp->ms_loaded) {
675 VERIFY0(metaslab_load(msp));
676 range_tree_stat_verify(msp->ms_tree);
678 dump_metaslab_stats(msp);
679 metaslab_unload(msp);
680 mutex_exit(&msp->ms_lock);
683 if (dump_opt['m'] > 1 && sm != NULL &&
684 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
686 * The space map histogram represents free space in chunks
687 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
689 (void) printf("\tOn-disk histogram:\n");
690 dump_histogram(sm->sm_phys->smp_histogram,
691 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift);
694 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
695 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
697 mutex_enter(&msp->ms_lock);
698 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
699 mutex_exit(&msp->ms_lock);
704 print_vdev_metaslab_header(vdev_t *vd)
706 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
707 (u_longlong_t)vd->vdev_id,
708 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
709 "offset", "spacemap", "free");
710 (void) printf("\t%15s %19s %15s %10s\n",
711 "---------------", "-------------------",
712 "---------------", "-------------");
716 dump_metaslabs(spa_t *spa)
718 vdev_t *vd, *rvd = spa->spa_root_vdev;
719 uint64_t m, c = 0, children = rvd->vdev_children;
721 (void) printf("\nMetaslabs:\n");
723 if (!dump_opt['d'] && zopt_objects > 0) {
727 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
729 if (zopt_objects > 1) {
730 vd = rvd->vdev_child[c];
731 print_vdev_metaslab_header(vd);
733 for (m = 1; m < zopt_objects; m++) {
734 if (zopt_object[m] < vd->vdev_ms_count)
736 vd->vdev_ms[zopt_object[m]]);
738 (void) fprintf(stderr, "bad metaslab "
740 (u_longlong_t)zopt_object[m]);
747 for (; c < children; c++) {
748 vd = rvd->vdev_child[c];
749 print_vdev_metaslab_header(vd);
751 for (m = 0; m < vd->vdev_ms_count; m++)
752 dump_metaslab(vd->vdev_ms[m]);
758 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
760 const ddt_phys_t *ddp = dde->dde_phys;
761 const ddt_key_t *ddk = &dde->dde_key;
762 char *types[4] = { "ditto", "single", "double", "triple" };
763 char blkbuf[BP_SPRINTF_LEN];
766 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
767 if (ddp->ddp_phys_birth == 0)
769 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
770 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
771 (void) printf("index %llx refcnt %llu %s %s\n",
772 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
778 dump_dedup_ratio(const ddt_stat_t *dds)
780 double rL, rP, rD, D, dedup, compress, copies;
782 if (dds->dds_blocks == 0)
785 rL = (double)dds->dds_ref_lsize;
786 rP = (double)dds->dds_ref_psize;
787 rD = (double)dds->dds_ref_dsize;
788 D = (double)dds->dds_dsize;
794 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
795 "dedup * compress / copies = %.2f\n\n",
796 dedup, compress, copies, dedup * compress / copies);
800 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
802 char name[DDT_NAMELEN];
805 dmu_object_info_t doi;
806 uint64_t count, dspace, mspace;
809 error = ddt_object_info(ddt, type, class, &doi);
815 error = ddt_object_count(ddt, type, class, &count);
820 dspace = doi.doi_physical_blocks_512 << 9;
821 mspace = doi.doi_fill_count * doi.doi_data_block_size;
823 ddt_object_name(ddt, type, class, name);
825 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
828 (u_longlong_t)(dspace / count),
829 (u_longlong_t)(mspace / count));
831 if (dump_opt['D'] < 3)
834 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
836 if (dump_opt['D'] < 4)
839 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
842 (void) printf("%s contents:\n\n", name);
844 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
845 dump_dde(ddt, &dde, walk);
847 ASSERT(error == ENOENT);
853 dump_all_ddts(spa_t *spa)
855 ddt_histogram_t ddh_total = { 0 };
856 ddt_stat_t dds_total = { 0 };
858 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
859 ddt_t *ddt = spa->spa_ddt[c];
860 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
861 for (enum ddt_class class = 0; class < DDT_CLASSES;
863 dump_ddt(ddt, type, class);
868 ddt_get_dedup_stats(spa, &dds_total);
870 if (dds_total.dds_blocks == 0) {
871 (void) printf("All DDTs are empty\n");
877 if (dump_opt['D'] > 1) {
878 (void) printf("DDT histogram (aggregated over all DDTs):\n");
879 ddt_get_dedup_histogram(spa, &ddh_total);
880 zpool_dump_ddt(&dds_total, &ddh_total);
883 dump_dedup_ratio(&dds_total);
887 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
891 (void) printf("%s [%llu,%llu) length %llu\n",
894 (u_longlong_t)(start + size),
895 (u_longlong_t)(size));
899 dump_dtl(vdev_t *vd, int indent)
901 spa_t *spa = vd->vdev_spa;
903 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
906 spa_vdev_state_enter(spa, SCL_NONE);
907 required = vdev_dtl_required(vd);
908 (void) spa_vdev_state_exit(spa, NULL, 0);
911 (void) printf("\nDirty time logs:\n\n");
913 (void) printf("\t%*s%s [%s]\n", indent, "",
914 vd->vdev_path ? vd->vdev_path :
915 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
916 required ? "DTL-required" : "DTL-expendable");
918 for (int t = 0; t < DTL_TYPES; t++) {
919 range_tree_t *rt = vd->vdev_dtl[t];
920 if (range_tree_space(rt) == 0)
922 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
923 indent + 2, "", name[t]);
924 mutex_enter(rt->rt_lock);
925 range_tree_walk(rt, dump_dtl_seg, prefix);
926 mutex_exit(rt->rt_lock);
927 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
928 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
931 for (int c = 0; c < vd->vdev_children; c++)
932 dump_dtl(vd->vdev_child[c], indent + 4);
935 /* from spa_history.c: spa_history_create_obj() */
936 #define HIS_BUF_LEN_DEF (128 << 10)
937 #define HIS_BUF_LEN_MAX (1 << 30)
940 dump_history(spa_t *spa)
942 nvlist_t **events = NULL;
944 uint64_t bufsize = HIS_BUF_LEN_DEF;
945 uint64_t resid, len, off = 0;
951 char internalstr[MAXPATHLEN];
953 if ((buf = malloc(bufsize)) == NULL)
954 (void) fprintf(stderr, "Unable to read history: "
959 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
960 (void) fprintf(stderr, "Unable to read history: "
961 "error %d\n", error);
965 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
970 * If the history block is too big, double the buffer
971 * size and try again.
978 if ((bufsize >= HIS_BUF_LEN_MAX) ||
979 ((buf = malloc(bufsize)) == NULL)) {
980 (void) fprintf(stderr, "Unable to read history: "
988 (void) printf("\nHistory:\n");
989 for (int i = 0; i < num; i++) {
990 uint64_t time, txg, ievent;
992 boolean_t printed = B_FALSE;
994 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
997 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
999 if (nvlist_lookup_uint64(events[i],
1000 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1002 verify(nvlist_lookup_uint64(events[i],
1003 ZPOOL_HIST_TXG, &txg) == 0);
1004 verify(nvlist_lookup_string(events[i],
1005 ZPOOL_HIST_INT_STR, &intstr) == 0);
1006 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1009 (void) snprintf(internalstr,
1010 sizeof (internalstr),
1011 "[internal %s txg:%lld] %s",
1012 zfs_history_event_names[ievent], txg,
1017 (void) localtime_r(&tsec, &t);
1018 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1019 (void) printf("%s %s\n", tbuf, cmd);
1023 if (dump_opt['h'] > 1) {
1025 (void) printf("unrecognized record:\n");
1026 dump_nvlist(events[i], 2);
1033 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1038 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1039 const zbookmark_phys_t *zb)
1042 ASSERT(zb->zb_level < 0);
1043 if (zb->zb_object == 0)
1044 return (zb->zb_blkid);
1045 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1048 ASSERT(zb->zb_level >= 0);
1050 return ((zb->zb_blkid <<
1051 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1052 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1056 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1058 const dva_t *dva = bp->blk_dva;
1059 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1061 if (dump_opt['b'] >= 6) {
1062 snprintf_blkptr(blkbuf, buflen, bp);
1066 if (BP_IS_EMBEDDED(bp)) {
1067 (void) sprintf(blkbuf,
1068 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1069 (int)BPE_GET_ETYPE(bp),
1070 (u_longlong_t)BPE_GET_LSIZE(bp),
1071 (u_longlong_t)BPE_GET_PSIZE(bp),
1072 (u_longlong_t)bp->blk_birth);
1077 for (int i = 0; i < ndvas; i++)
1078 (void) snprintf(blkbuf + strlen(blkbuf),
1079 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1080 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1081 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1082 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1084 if (BP_IS_HOLE(bp)) {
1085 (void) snprintf(blkbuf + strlen(blkbuf),
1086 buflen - strlen(blkbuf), "B=%llu",
1087 (u_longlong_t)bp->blk_birth);
1089 (void) snprintf(blkbuf + strlen(blkbuf),
1090 buflen - strlen(blkbuf),
1091 "%llxL/%llxP F=%llu B=%llu/%llu",
1092 (u_longlong_t)BP_GET_LSIZE(bp),
1093 (u_longlong_t)BP_GET_PSIZE(bp),
1094 (u_longlong_t)BP_GET_FILL(bp),
1095 (u_longlong_t)bp->blk_birth,
1096 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1101 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1102 const dnode_phys_t *dnp)
1104 char blkbuf[BP_SPRINTF_LEN];
1107 if (!BP_IS_EMBEDDED(bp)) {
1108 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1109 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1112 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1114 ASSERT(zb->zb_level >= 0);
1116 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1117 if (l == zb->zb_level) {
1118 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1124 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1125 (void) printf("%s\n", blkbuf);
1129 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1130 blkptr_t *bp, const zbookmark_phys_t *zb)
1134 if (bp->blk_birth == 0)
1137 print_indirect(bp, zb, dnp);
1139 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1140 uint32_t flags = ARC_WAIT;
1143 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1147 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1148 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1151 ASSERT(buf->b_data);
1153 /* recursively visit blocks below this */
1155 for (i = 0; i < epb; i++, cbp++) {
1156 zbookmark_phys_t czb;
1158 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1160 zb->zb_blkid * epb + i);
1161 err = visit_indirect(spa, dnp, cbp, &czb);
1164 fill += BP_GET_FILL(cbp);
1167 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1168 (void) arc_buf_remove_ref(buf, &buf);
1176 dump_indirect(dnode_t *dn)
1178 dnode_phys_t *dnp = dn->dn_phys;
1180 zbookmark_phys_t czb;
1182 (void) printf("Indirect blocks:\n");
1184 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1185 dn->dn_object, dnp->dn_nlevels - 1, 0);
1186 for (j = 0; j < dnp->dn_nblkptr; j++) {
1188 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1189 &dnp->dn_blkptr[j], &czb);
1192 (void) printf("\n");
1197 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1199 dsl_dir_phys_t *dd = data;
1206 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1208 crtime = dd->dd_creation_time;
1209 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1210 (void) printf("\t\thead_dataset_obj = %llu\n",
1211 (u_longlong_t)dd->dd_head_dataset_obj);
1212 (void) printf("\t\tparent_dir_obj = %llu\n",
1213 (u_longlong_t)dd->dd_parent_obj);
1214 (void) printf("\t\torigin_obj = %llu\n",
1215 (u_longlong_t)dd->dd_origin_obj);
1216 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1217 (u_longlong_t)dd->dd_child_dir_zapobj);
1218 zdb_nicenum(dd->dd_used_bytes, nice);
1219 (void) printf("\t\tused_bytes = %s\n", nice);
1220 zdb_nicenum(dd->dd_compressed_bytes, nice);
1221 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1222 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1223 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1224 zdb_nicenum(dd->dd_quota, nice);
1225 (void) printf("\t\tquota = %s\n", nice);
1226 zdb_nicenum(dd->dd_reserved, nice);
1227 (void) printf("\t\treserved = %s\n", nice);
1228 (void) printf("\t\tprops_zapobj = %llu\n",
1229 (u_longlong_t)dd->dd_props_zapobj);
1230 (void) printf("\t\tdeleg_zapobj = %llu\n",
1231 (u_longlong_t)dd->dd_deleg_zapobj);
1232 (void) printf("\t\tflags = %llx\n",
1233 (u_longlong_t)dd->dd_flags);
1236 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1237 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1248 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1250 dsl_dataset_phys_t *ds = data;
1252 char used[32], compressed[32], uncompressed[32], unique[32];
1253 char blkbuf[BP_SPRINTF_LEN];
1258 ASSERT(size == sizeof (*ds));
1259 crtime = ds->ds_creation_time;
1260 zdb_nicenum(ds->ds_referenced_bytes, used);
1261 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1262 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1263 zdb_nicenum(ds->ds_unique_bytes, unique);
1264 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1266 (void) printf("\t\tdir_obj = %llu\n",
1267 (u_longlong_t)ds->ds_dir_obj);
1268 (void) printf("\t\tprev_snap_obj = %llu\n",
1269 (u_longlong_t)ds->ds_prev_snap_obj);
1270 (void) printf("\t\tprev_snap_txg = %llu\n",
1271 (u_longlong_t)ds->ds_prev_snap_txg);
1272 (void) printf("\t\tnext_snap_obj = %llu\n",
1273 (u_longlong_t)ds->ds_next_snap_obj);
1274 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1275 (u_longlong_t)ds->ds_snapnames_zapobj);
1276 (void) printf("\t\tnum_children = %llu\n",
1277 (u_longlong_t)ds->ds_num_children);
1278 (void) printf("\t\tuserrefs_obj = %llu\n",
1279 (u_longlong_t)ds->ds_userrefs_obj);
1280 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1281 (void) printf("\t\tcreation_txg = %llu\n",
1282 (u_longlong_t)ds->ds_creation_txg);
1283 (void) printf("\t\tdeadlist_obj = %llu\n",
1284 (u_longlong_t)ds->ds_deadlist_obj);
1285 (void) printf("\t\tused_bytes = %s\n", used);
1286 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1287 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1288 (void) printf("\t\tunique = %s\n", unique);
1289 (void) printf("\t\tfsid_guid = %llu\n",
1290 (u_longlong_t)ds->ds_fsid_guid);
1291 (void) printf("\t\tguid = %llu\n",
1292 (u_longlong_t)ds->ds_guid);
1293 (void) printf("\t\tflags = %llx\n",
1294 (u_longlong_t)ds->ds_flags);
1295 (void) printf("\t\tnext_clones_obj = %llu\n",
1296 (u_longlong_t)ds->ds_next_clones_obj);
1297 (void) printf("\t\tprops_obj = %llu\n",
1298 (u_longlong_t)ds->ds_props_obj);
1299 (void) printf("\t\tbp = %s\n", blkbuf);
1304 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1306 char blkbuf[BP_SPRINTF_LEN];
1308 if (bp->blk_birth != 0) {
1309 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1310 (void) printf("\t%s\n", blkbuf);
1316 dump_bptree(objset_t *os, uint64_t obj, char *name)
1322 if (dump_opt['d'] < 3)
1325 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1327 zdb_nicenum(bt->bt_bytes, bytes);
1328 (void) printf("\n %s: %llu datasets, %s\n",
1329 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1330 dmu_buf_rele(db, FTAG);
1332 if (dump_opt['d'] < 5)
1335 (void) printf("\n");
1337 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1342 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1344 char blkbuf[BP_SPRINTF_LEN];
1346 ASSERT(bp->blk_birth != 0);
1347 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1348 (void) printf("\t%s\n", blkbuf);
1353 dump_bpobj(bpobj_t *bpo, char *name, int indent)
1359 if (dump_opt['d'] < 3)
1362 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1363 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1364 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1365 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1366 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1367 "%llu subobjs, %s (%s/%s comp)\n",
1369 (u_longlong_t)bpo->bpo_object,
1370 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1371 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1372 bytes, comp, uncomp);
1374 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1378 VERIFY0(dmu_read(bpo->bpo_os,
1379 bpo->bpo_phys->bpo_subobjs,
1380 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1381 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1383 (void) printf("ERROR %u while trying to open "
1385 error, (u_longlong_t)subobj);
1388 dump_bpobj(&subbpo, "subobj", indent + 1);
1389 bpobj_close(&subbpo);
1392 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1394 (u_longlong_t)bpo->bpo_object,
1395 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1399 if (dump_opt['d'] < 5)
1404 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1405 (void) printf("\n");
1410 dump_deadlist(dsl_deadlist_t *dl)
1412 dsl_deadlist_entry_t *dle;
1418 if (dump_opt['d'] < 3)
1421 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1422 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1423 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1424 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1425 bytes, comp, uncomp);
1427 if (dump_opt['d'] < 4)
1430 (void) printf("\n");
1432 /* force the tree to be loaded */
1433 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1435 for (dle = avl_first(&dl->dl_tree); dle;
1436 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1437 if (dump_opt['d'] >= 5) {
1439 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ",
1440 (longlong_t)dle->dle_mintxg,
1441 (longlong_t)dle->dle_bpobj.bpo_object);
1443 dump_bpobj(&dle->dle_bpobj, buf, 0);
1445 (void) printf("mintxg %llu -> obj %llu\n",
1446 (longlong_t)dle->dle_mintxg,
1447 (longlong_t)dle->dle_bpobj.bpo_object);
1453 static avl_tree_t idx_tree;
1454 static avl_tree_t domain_tree;
1455 static boolean_t fuid_table_loaded;
1456 static boolean_t sa_loaded;
1457 sa_attr_type_t *sa_attr_table;
1460 fuid_table_destroy()
1462 if (fuid_table_loaded) {
1463 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1464 fuid_table_loaded = B_FALSE;
1469 * print uid or gid information.
1470 * For normal POSIX id just the id is printed in decimal format.
1471 * For CIFS files with FUID the fuid is printed in hex followed by
1472 * the domain-rid string.
1475 print_idstr(uint64_t id, const char *id_type)
1477 if (FUID_INDEX(id)) {
1480 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1481 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1482 (u_longlong_t)id, domain, (int)FUID_RID(id));
1484 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1490 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1492 uint32_t uid_idx, gid_idx;
1494 uid_idx = FUID_INDEX(uid);
1495 gid_idx = FUID_INDEX(gid);
1497 /* Load domain table, if not already loaded */
1498 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1501 /* first find the fuid object. It lives in the master node */
1502 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1503 8, 1, &fuid_obj) == 0);
1504 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1505 (void) zfs_fuid_table_load(os, fuid_obj,
1506 &idx_tree, &domain_tree);
1507 fuid_table_loaded = B_TRUE;
1510 print_idstr(uid, "uid");
1511 print_idstr(gid, "gid");
1516 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1518 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1520 uint64_t xattr, rdev, gen;
1521 uint64_t uid, gid, mode, fsize, parent, links;
1523 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1524 time_t z_crtime, z_atime, z_mtime, z_ctime;
1525 sa_bulk_attr_t bulk[12];
1530 uint64_t sa_attrs = 0;
1533 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1534 8, 1, &version) == 0);
1535 if (version >= ZPL_VERSION_SA) {
1536 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1537 8, 1, &sa_attrs) == 0);
1539 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1540 ZPL_END, &sa_attr_table)) != 0) {
1541 (void) printf("sa_setup failed errno %d, can't "
1542 "display znode contents\n", error);
1548 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1549 (void) printf("Failed to get handle for SA znode\n");
1553 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1554 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1555 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1557 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1558 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1560 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1562 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1564 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1566 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1568 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1570 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1572 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1575 if (sa_bulk_lookup(hdl, bulk, idx)) {
1576 (void) sa_handle_destroy(hdl);
1580 error = zfs_obj_to_path(os, object, path, sizeof (path));
1582 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1583 (u_longlong_t)object);
1585 if (dump_opt['d'] < 3) {
1586 (void) printf("\t%s\n", path);
1587 (void) sa_handle_destroy(hdl);
1591 z_crtime = (time_t)crtm[0];
1592 z_atime = (time_t)acctm[0];
1593 z_mtime = (time_t)modtm[0];
1594 z_ctime = (time_t)chgtm[0];
1596 (void) printf("\tpath %s\n", path);
1597 dump_uidgid(os, uid, gid);
1598 (void) printf("\tatime %s", ctime(&z_atime));
1599 (void) printf("\tmtime %s", ctime(&z_mtime));
1600 (void) printf("\tctime %s", ctime(&z_ctime));
1601 (void) printf("\tcrtime %s", ctime(&z_crtime));
1602 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1603 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1604 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1605 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1606 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1607 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1608 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1609 sizeof (uint64_t)) == 0)
1610 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1611 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1612 sizeof (uint64_t)) == 0)
1613 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1614 sa_handle_destroy(hdl);
1619 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1625 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1629 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1630 dump_none, /* unallocated */
1631 dump_zap, /* object directory */
1632 dump_uint64, /* object array */
1633 dump_none, /* packed nvlist */
1634 dump_packed_nvlist, /* packed nvlist size */
1635 dump_none, /* bplist */
1636 dump_none, /* bplist header */
1637 dump_none, /* SPA space map header */
1638 dump_none, /* SPA space map */
1639 dump_none, /* ZIL intent log */
1640 dump_dnode, /* DMU dnode */
1641 dump_dmu_objset, /* DMU objset */
1642 dump_dsl_dir, /* DSL directory */
1643 dump_zap, /* DSL directory child map */
1644 dump_zap, /* DSL dataset snap map */
1645 dump_zap, /* DSL props */
1646 dump_dsl_dataset, /* DSL dataset */
1647 dump_znode, /* ZFS znode */
1648 dump_acl, /* ZFS V0 ACL */
1649 dump_uint8, /* ZFS plain file */
1650 dump_zpldir, /* ZFS directory */
1651 dump_zap, /* ZFS master node */
1652 dump_zap, /* ZFS delete queue */
1653 dump_uint8, /* zvol object */
1654 dump_zap, /* zvol prop */
1655 dump_uint8, /* other uint8[] */
1656 dump_uint64, /* other uint64[] */
1657 dump_zap, /* other ZAP */
1658 dump_zap, /* persistent error log */
1659 dump_uint8, /* SPA history */
1660 dump_history_offsets, /* SPA history offsets */
1661 dump_zap, /* Pool properties */
1662 dump_zap, /* DSL permissions */
1663 dump_acl, /* ZFS ACL */
1664 dump_uint8, /* ZFS SYSACL */
1665 dump_none, /* FUID nvlist */
1666 dump_packed_nvlist, /* FUID nvlist size */
1667 dump_zap, /* DSL dataset next clones */
1668 dump_zap, /* DSL scrub queue */
1669 dump_zap, /* ZFS user/group used */
1670 dump_zap, /* ZFS user/group quota */
1671 dump_zap, /* snapshot refcount tags */
1672 dump_ddt_zap, /* DDT ZAP object */
1673 dump_zap, /* DDT statistics */
1674 dump_znode, /* SA object */
1675 dump_zap, /* SA Master Node */
1676 dump_sa_attrs, /* SA attribute registration */
1677 dump_sa_layouts, /* SA attribute layouts */
1678 dump_zap, /* DSL scrub translations */
1679 dump_none, /* fake dedup BP */
1680 dump_zap, /* deadlist */
1681 dump_none, /* deadlist hdr */
1682 dump_zap, /* dsl clones */
1683 dump_none, /* bpobj subobjs */
1684 dump_unknown, /* Unknown type, must be last */
1688 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1690 dmu_buf_t *db = NULL;
1691 dmu_object_info_t doi;
1695 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1696 char bonus_size[32];
1700 if (*print_header) {
1701 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1702 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1708 dn = DMU_META_DNODE(os);
1710 error = dmu_bonus_hold(os, object, FTAG, &db);
1712 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1714 bonus = db->db_data;
1715 bsize = db->db_size;
1716 dn = DB_DNODE((dmu_buf_impl_t *)db);
1718 dmu_object_info_from_dnode(dn, &doi);
1720 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1721 zdb_nicenum(doi.doi_data_block_size, dblk);
1722 zdb_nicenum(doi.doi_max_offset, lsize);
1723 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1724 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1725 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1726 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1727 doi.doi_max_offset);
1731 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1732 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1733 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1736 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1737 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1738 ZDB_COMPRESS_NAME(doi.doi_compress));
1741 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1742 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1743 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1745 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1746 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1747 "", "", "", "", "", bonus_size, "bonus",
1748 ZDB_OT_NAME(doi.doi_bonus_type));
1751 if (verbosity >= 4) {
1752 (void) printf("\tdnode flags: %s%s%s\n",
1753 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1755 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1756 "USERUSED_ACCOUNTED " : "",
1757 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1758 "SPILL_BLKPTR" : "");
1759 (void) printf("\tdnode maxblkid: %llu\n",
1760 (longlong_t)dn->dn_phys->dn_maxblkid);
1762 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1764 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1771 if (verbosity >= 5) {
1773 * Report the list of segments that comprise the object.
1777 uint64_t blkfill = 1;
1780 if (dn->dn_type == DMU_OT_DNODE) {
1782 blkfill = DNODES_PER_BLOCK;
1787 error = dnode_next_offset(dn,
1788 0, &start, minlvl, blkfill, 0);
1792 error = dnode_next_offset(dn,
1793 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1794 zdb_nicenum(end - start, segsize);
1795 (void) printf("\t\tsegment [%016llx, %016llx)"
1796 " size %5s\n", (u_longlong_t)start,
1797 (u_longlong_t)end, segsize);
1805 dmu_buf_rele(db, FTAG);
1808 static char *objset_types[DMU_OST_NUMTYPES] = {
1809 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1812 dump_dir(objset_t *os)
1814 dmu_objset_stats_t dds;
1815 uint64_t object, object_count;
1816 uint64_t refdbytes, usedobjs, scratch;
1818 char blkbuf[BP_SPRINTF_LEN + 20];
1819 char osname[MAXNAMELEN];
1820 char *type = "UNKNOWN";
1821 int verbosity = dump_opt['d'];
1822 int print_header = 1;
1825 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1826 dmu_objset_fast_stat(os, &dds);
1827 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1829 if (dds.dds_type < DMU_OST_NUMTYPES)
1830 type = objset_types[dds.dds_type];
1832 if (dds.dds_type == DMU_OST_META) {
1833 dds.dds_creation_txg = TXG_INITIAL;
1834 usedobjs = BP_GET_FILL(os->os_rootbp);
1835 refdbytes = os->os_spa->spa_dsl_pool->
1836 dp_mos_dir->dd_phys->dd_used_bytes;
1838 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1841 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1843 zdb_nicenum(refdbytes, numbuf);
1845 if (verbosity >= 4) {
1846 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
1847 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
1848 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
1853 dmu_objset_name(os, osname);
1855 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1856 "%s, %llu objects%s\n",
1857 osname, type, (u_longlong_t)dmu_objset_id(os),
1858 (u_longlong_t)dds.dds_creation_txg,
1859 numbuf, (u_longlong_t)usedobjs, blkbuf);
1861 if (zopt_objects != 0) {
1862 for (i = 0; i < zopt_objects; i++)
1863 dump_object(os, zopt_object[i], verbosity,
1865 (void) printf("\n");
1869 if (dump_opt['i'] != 0 || verbosity >= 2)
1870 dump_intent_log(dmu_objset_zil(os));
1872 if (dmu_objset_ds(os) != NULL)
1873 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1878 if (BP_IS_HOLE(os->os_rootbp))
1881 dump_object(os, 0, verbosity, &print_header);
1883 if (DMU_USERUSED_DNODE(os) != NULL &&
1884 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1885 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1886 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1890 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1891 dump_object(os, object, verbosity, &print_header);
1895 ASSERT3U(object_count, ==, usedobjs);
1897 (void) printf("\n");
1899 if (error != ESRCH) {
1900 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1906 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
1908 time_t timestamp = ub->ub_timestamp;
1910 (void) printf(header ? header : "");
1911 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
1912 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
1913 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
1914 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
1915 (void) printf("\ttimestamp = %llu UTC = %s",
1916 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
1917 if (dump_opt['u'] >= 3) {
1918 char blkbuf[BP_SPRINTF_LEN];
1919 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
1920 (void) printf("\trootbp = %s\n", blkbuf);
1922 (void) printf(footer ? footer : "");
1926 dump_config(spa_t *spa)
1933 error = dmu_bonus_hold(spa->spa_meta_objset,
1934 spa->spa_config_object, FTAG, &db);
1937 nvsize = *(uint64_t *)db->db_data;
1938 dmu_buf_rele(db, FTAG);
1940 (void) printf("\nMOS Configuration:\n");
1941 dump_packed_nvlist(spa->spa_meta_objset,
1942 spa->spa_config_object, (void *)&nvsize, 1);
1944 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
1945 (u_longlong_t)spa->spa_config_object, error);
1950 dump_cachefile(const char *cachefile)
1953 struct stat64 statbuf;
1957 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
1958 (void) printf("cannot open '%s': %s\n", cachefile,
1963 if (fstat64(fd, &statbuf) != 0) {
1964 (void) printf("failed to stat '%s': %s\n", cachefile,
1969 if ((buf = malloc(statbuf.st_size)) == NULL) {
1970 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
1971 (u_longlong_t)statbuf.st_size);
1975 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
1976 (void) fprintf(stderr, "failed to read %llu bytes\n",
1977 (u_longlong_t)statbuf.st_size);
1983 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
1984 (void) fprintf(stderr, "failed to unpack nvlist\n");
1990 dump_nvlist(config, 0);
1992 nvlist_free(config);
1995 #define ZDB_MAX_UB_HEADER_SIZE 32
1998 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2002 char header[ZDB_MAX_UB_HEADER_SIZE];
2004 vd.vdev_ashift = ashift;
2005 vdp->vdev_top = vdp;
2007 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2008 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2009 uberblock_t *ub = (void *)((char *)lbl + uoff);
2011 if (uberblock_verify(ub))
2013 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2014 "Uberblock[%d]\n", i);
2015 dump_uberblock(ub, header, "");
2020 dump_label(const char *dev)
2024 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
2025 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2026 struct stat64 statbuf;
2027 uint64_t psize, ashift;
2028 int len = strlen(dev) + 1;
2030 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
2033 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
2038 if ((fd = open64(path, O_RDONLY)) < 0) {
2039 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2044 if (fstat64(fd, &statbuf) != 0) {
2045 (void) printf("failed to stat '%s': %s\n", path,
2052 if (S_ISBLK(statbuf.st_mode)) {
2053 (void) printf("cannot use '%s': character device required\n",
2060 psize = statbuf.st_size;
2061 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2063 for (int l = 0; l < VDEV_LABELS; l++) {
2064 nvlist_t *config = NULL;
2066 (void) printf("--------------------------------------------\n");
2067 (void) printf("LABEL %d\n", l);
2068 (void) printf("--------------------------------------------\n");
2070 if (pread64(fd, &label, sizeof (label),
2071 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2072 (void) printf("failed to read label %d\n", l);
2076 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2077 (void) printf("failed to unpack label %d\n", l);
2078 ashift = SPA_MINBLOCKSHIFT;
2080 nvlist_t *vdev_tree = NULL;
2082 dump_nvlist(config, 4);
2083 if ((nvlist_lookup_nvlist(config,
2084 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2085 (nvlist_lookup_uint64(vdev_tree,
2086 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2087 ashift = SPA_MINBLOCKSHIFT;
2088 nvlist_free(config);
2091 dump_label_uberblocks(&label, ashift);
2100 dump_one_dir(const char *dsname, void *arg)
2105 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2107 (void) printf("Could not open %s, error %d\n", dsname, error);
2111 dmu_objset_disown(os, FTAG);
2112 fuid_table_destroy();
2113 sa_loaded = B_FALSE;
2120 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1)
2121 typedef struct zdb_blkstats {
2127 uint64_t zb_ditto_samevdev;
2128 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2132 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2134 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2135 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2136 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2137 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2139 static char *zdb_ot_extname[] = {
2146 #define ZB_TOTAL DN_MAX_LEVELS
2148 typedef struct zdb_cb {
2149 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2150 uint64_t zcb_dedup_asize;
2151 uint64_t zcb_dedup_blocks;
2152 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2153 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2156 uint64_t zcb_lastprint;
2157 uint64_t zcb_totalasize;
2158 uint64_t zcb_errors[256];
2165 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2166 dmu_object_type_t type)
2168 uint64_t refcnt = 0;
2170 ASSERT(type < ZDB_OT_TOTAL);
2172 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2175 for (int i = 0; i < 4; i++) {
2176 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2177 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2179 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2181 zb->zb_asize += BP_GET_ASIZE(bp);
2182 zb->zb_lsize += BP_GET_LSIZE(bp);
2183 zb->zb_psize += BP_GET_PSIZE(bp);
2185 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++;
2187 zb->zb_gangs += BP_COUNT_GANG(bp);
2189 switch (BP_GET_NDVAS(bp)) {
2191 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2192 DVA_GET_VDEV(&bp->blk_dva[1]))
2193 zb->zb_ditto_samevdev++;
2196 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2197 DVA_GET_VDEV(&bp->blk_dva[1])) +
2198 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2199 DVA_GET_VDEV(&bp->blk_dva[2])) +
2200 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2201 DVA_GET_VDEV(&bp->blk_dva[2]));
2203 zb->zb_ditto_samevdev++;
2209 if (BP_IS_EMBEDDED(bp)) {
2210 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2211 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2212 [BPE_GET_PSIZE(bp)]++;
2219 if (BP_GET_DEDUP(bp)) {
2223 ddt = ddt_select(zcb->zcb_spa, bp);
2225 dde = ddt_lookup(ddt, bp, B_FALSE);
2230 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2231 ddt_phys_decref(ddp);
2232 refcnt = ddp->ddp_refcnt;
2233 if (ddt_phys_total_refcnt(dde) == 0)
2234 ddt_remove(ddt, dde);
2239 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2240 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2241 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2246 zdb_blkptr_done(zio_t *zio)
2248 spa_t *spa = zio->io_spa;
2249 blkptr_t *bp = zio->io_bp;
2250 int ioerr = zio->io_error;
2251 zdb_cb_t *zcb = zio->io_private;
2252 zbookmark_phys_t *zb = &zio->io_bookmark;
2254 zio_data_buf_free(zio->io_data, zio->io_size);
2256 mutex_enter(&spa->spa_scrub_lock);
2257 spa->spa_scrub_inflight--;
2258 cv_broadcast(&spa->spa_scrub_io_cv);
2260 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2261 char blkbuf[BP_SPRINTF_LEN];
2263 zcb->zcb_haderrors = 1;
2264 zcb->zcb_errors[ioerr]++;
2266 if (dump_opt['b'] >= 2)
2267 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2271 (void) printf("zdb_blkptr_cb: "
2272 "Got error %d reading "
2273 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2275 (u_longlong_t)zb->zb_objset,
2276 (u_longlong_t)zb->zb_object,
2277 (u_longlong_t)zb->zb_level,
2278 (u_longlong_t)zb->zb_blkid,
2281 mutex_exit(&spa->spa_scrub_lock);
2286 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2287 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2289 zdb_cb_t *zcb = arg;
2290 dmu_object_type_t type;
2291 boolean_t is_metadata;
2293 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2294 char blkbuf[BP_SPRINTF_LEN];
2295 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2296 (void) printf("objset %llu object %llu "
2297 "level %lld offset 0x%llx %s\n",
2298 (u_longlong_t)zb->zb_objset,
2299 (u_longlong_t)zb->zb_object,
2300 (longlong_t)zb->zb_level,
2301 (u_longlong_t)blkid2offset(dnp, bp, zb),
2308 type = BP_GET_TYPE(bp);
2310 zdb_count_block(zcb, zilog, bp,
2311 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2313 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2315 if (!BP_IS_EMBEDDED(bp) &&
2316 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2317 size_t size = BP_GET_PSIZE(bp);
2318 void *data = zio_data_buf_alloc(size);
2319 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2321 /* If it's an intent log block, failure is expected. */
2322 if (zb->zb_level == ZB_ZIL_LEVEL)
2323 flags |= ZIO_FLAG_SPECULATIVE;
2325 mutex_enter(&spa->spa_scrub_lock);
2326 while (spa->spa_scrub_inflight > max_inflight)
2327 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2328 spa->spa_scrub_inflight++;
2329 mutex_exit(&spa->spa_scrub_lock);
2331 zio_nowait(zio_read(NULL, spa, bp, data, size,
2332 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2335 zcb->zcb_readfails = 0;
2337 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) &&
2338 gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2339 uint64_t now = gethrtime();
2341 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2343 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2345 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2347 zfs_nicenum(bytes, buf, sizeof (buf));
2348 (void) fprintf(stderr,
2349 "\r%5s completed (%4dMB/s) "
2350 "estimated time remaining: %uhr %02umin %02usec ",
2351 buf, kb_per_sec / 1024,
2352 sec_remaining / 60 / 60,
2353 sec_remaining / 60 % 60,
2354 sec_remaining % 60);
2356 zcb->zcb_lastprint = now;
2363 zdb_leak(void *arg, uint64_t start, uint64_t size)
2367 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2368 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2371 static metaslab_ops_t zdb_metaslab_ops = {
2373 NULL /* fragmented */
2377 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2379 ddt_bookmark_t ddb = { 0 };
2383 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2385 ddt_phys_t *ddp = dde.dde_phys;
2387 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2390 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2392 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2393 if (ddp->ddp_phys_birth == 0)
2395 ddt_bp_create(ddb.ddb_checksum,
2396 &dde.dde_key, ddp, &blk);
2397 if (p == DDT_PHYS_DITTO) {
2398 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2400 zcb->zcb_dedup_asize +=
2401 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2402 zcb->zcb_dedup_blocks++;
2405 if (!dump_opt['L']) {
2406 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2408 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2413 ASSERT(error == ENOENT);
2417 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2421 if (!dump_opt['L']) {
2422 vdev_t *rvd = spa->spa_root_vdev;
2423 for (int c = 0; c < rvd->vdev_children; c++) {
2424 vdev_t *vd = rvd->vdev_child[c];
2425 for (int m = 0; m < vd->vdev_ms_count; m++) {
2426 metaslab_t *msp = vd->vdev_ms[m];
2427 mutex_enter(&msp->ms_lock);
2428 metaslab_unload(msp);
2431 * For leak detection, we overload the metaslab
2432 * ms_tree to contain allocated segments
2433 * instead of free segments. As a result,
2434 * we can't use the normal metaslab_load/unload
2437 if (msp->ms_sm != NULL) {
2438 msp->ms_ops = &zdb_metaslab_ops;
2439 VERIFY0(space_map_load(msp->ms_sm,
2440 msp->ms_tree, SM_ALLOC));
2441 msp->ms_loaded = B_TRUE;
2443 mutex_exit(&msp->ms_lock);
2448 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2450 zdb_ddt_leak_init(spa, zcb);
2452 spa_config_exit(spa, SCL_CONFIG, FTAG);
2456 zdb_leak_fini(spa_t *spa)
2458 if (!dump_opt['L']) {
2459 vdev_t *rvd = spa->spa_root_vdev;
2460 for (int c = 0; c < rvd->vdev_children; c++) {
2461 vdev_t *vd = rvd->vdev_child[c];
2462 for (int m = 0; m < vd->vdev_ms_count; m++) {
2463 metaslab_t *msp = vd->vdev_ms[m];
2464 mutex_enter(&msp->ms_lock);
2467 * The ms_tree has been overloaded to
2468 * contain allocated segments. Now that we
2469 * finished traversing all blocks, any
2470 * block that remains in the ms_tree
2471 * represents an allocated block that we
2472 * did not claim during the traversal.
2473 * Claimed blocks would have been removed
2476 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2477 msp->ms_loaded = B_FALSE;
2479 mutex_exit(&msp->ms_lock);
2487 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2489 zdb_cb_t *zcb = arg;
2491 if (dump_opt['b'] >= 5) {
2492 char blkbuf[BP_SPRINTF_LEN];
2493 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2494 (void) printf("[%s] %s\n",
2495 "deferred free", blkbuf);
2497 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2502 dump_block_stats(spa_t *spa)
2504 zdb_cb_t zcb = { 0 };
2505 zdb_blkstats_t *zb, *tzb;
2506 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2507 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2508 boolean_t leaks = B_FALSE;
2510 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2511 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2512 (dump_opt['c'] == 1) ? "metadata " : "",
2513 dump_opt['c'] ? "checksums " : "",
2514 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2515 !dump_opt['L'] ? "nothing leaked " : "");
2518 * Load all space maps as SM_ALLOC maps, then traverse the pool
2519 * claiming each block we discover. If the pool is perfectly
2520 * consistent, the space maps will be empty when we're done.
2521 * Anything left over is a leak; any block we can't claim (because
2522 * it's not part of any space map) is a double allocation,
2523 * reference to a freed block, or an unclaimed log block.
2525 zdb_leak_init(spa, &zcb);
2528 * If there's a deferred-free bplist, process that first.
2530 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2531 count_block_cb, &zcb, NULL);
2532 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2533 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2534 count_block_cb, &zcb, NULL);
2536 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2537 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2538 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2542 if (dump_opt['c'] > 1)
2543 flags |= TRAVERSE_PREFETCH_DATA;
2545 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2546 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2547 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2550 * If we've traversed the data blocks then we need to wait for those
2551 * I/Os to complete. We leverage "The Godfather" zio to wait on
2552 * all async I/Os to complete.
2554 if (dump_opt['c']) {
2555 (void) zio_wait(spa->spa_async_zio_root);
2556 spa->spa_async_zio_root = zio_root(spa, NULL, NULL,
2557 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2558 ZIO_FLAG_GODFATHER);
2561 if (zcb.zcb_haderrors) {
2562 (void) printf("\nError counts:\n\n");
2563 (void) printf("\t%5s %s\n", "errno", "count");
2564 for (int e = 0; e < 256; e++) {
2565 if (zcb.zcb_errors[e] != 0) {
2566 (void) printf("\t%5d %llu\n",
2567 e, (u_longlong_t)zcb.zcb_errors[e]);
2573 * Report any leaked segments.
2577 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2579 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2580 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2582 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2583 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2585 if (total_found == total_alloc) {
2587 (void) printf("\n\tNo leaks (block sum matches space"
2588 " maps exactly)\n");
2590 (void) printf("block traversal size %llu != alloc %llu "
2592 (u_longlong_t)total_found,
2593 (u_longlong_t)total_alloc,
2594 (dump_opt['L']) ? "unreachable" : "leaked",
2595 (longlong_t)(total_alloc - total_found));
2599 if (tzb->zb_count == 0)
2602 (void) printf("\n");
2603 (void) printf("\tbp count: %10llu\n",
2604 (u_longlong_t)tzb->zb_count);
2605 (void) printf("\tganged count: %10llu\n",
2606 (longlong_t)tzb->zb_gangs);
2607 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2608 (u_longlong_t)tzb->zb_lsize,
2609 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2610 (void) printf("\tbp physical: %10llu avg:"
2611 " %6llu compression: %6.2f\n",
2612 (u_longlong_t)tzb->zb_psize,
2613 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2614 (double)tzb->zb_lsize / tzb->zb_psize);
2615 (void) printf("\tbp allocated: %10llu avg:"
2616 " %6llu compression: %6.2f\n",
2617 (u_longlong_t)tzb->zb_asize,
2618 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2619 (double)tzb->zb_lsize / tzb->zb_asize);
2620 (void) printf("\tbp deduped: %10llu ref>1:"
2621 " %6llu deduplication: %6.2f\n",
2622 (u_longlong_t)zcb.zcb_dedup_asize,
2623 (u_longlong_t)zcb.zcb_dedup_blocks,
2624 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2625 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2626 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2628 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2629 if (zcb.zcb_embedded_blocks[i] == 0)
2631 (void) printf("\n");
2632 (void) printf("\tadditional, non-pointer bps of type %u: "
2634 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2636 if (dump_opt['b'] >= 3) {
2637 (void) printf("\t number of (compressed) bytes: "
2639 dump_histogram(zcb.zcb_embedded_histogram[i],
2640 sizeof (zcb.zcb_embedded_histogram[i]) /
2641 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2645 if (tzb->zb_ditto_samevdev != 0) {
2646 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2647 (longlong_t)tzb->zb_ditto_samevdev);
2650 if (dump_opt['b'] >= 2) {
2652 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2653 "\t avg\t comp\t%%Total\tType\n");
2655 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2656 char csize[32], lsize[32], psize[32], asize[32];
2657 char avg[32], gang[32];
2660 if (t < DMU_OT_NUMTYPES)
2661 typename = dmu_ot[t].ot_name;
2663 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2665 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2666 (void) printf("%6s\t%5s\t%5s\t%5s"
2667 "\t%5s\t%5s\t%6s\t%s\n",
2679 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2680 level = (l == -1 ? ZB_TOTAL : l);
2681 zb = &zcb.zcb_type[level][t];
2683 if (zb->zb_asize == 0)
2686 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2689 if (level == 0 && zb->zb_asize ==
2690 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2693 zdb_nicenum(zb->zb_count, csize);
2694 zdb_nicenum(zb->zb_lsize, lsize);
2695 zdb_nicenum(zb->zb_psize, psize);
2696 zdb_nicenum(zb->zb_asize, asize);
2697 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2698 zdb_nicenum(zb->zb_gangs, gang);
2700 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2702 csize, lsize, psize, asize, avg,
2703 (double)zb->zb_lsize / zb->zb_psize,
2704 100.0 * zb->zb_asize / tzb->zb_asize);
2706 if (level == ZB_TOTAL)
2707 (void) printf("%s\n", typename);
2709 (void) printf(" L%d %s\n",
2712 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
2713 (void) printf("\t number of ganged "
2714 "blocks: %s\n", gang);
2717 if (dump_opt['b'] >= 4) {
2718 (void) printf("psize "
2719 "(in 512-byte sectors): "
2720 "number of blocks\n");
2721 dump_histogram(zb->zb_psize_histogram,
2722 PSIZE_HISTO_SIZE, 0);
2728 (void) printf("\n");
2733 if (zcb.zcb_haderrors)
2739 typedef struct zdb_ddt_entry {
2741 uint64_t zdde_ref_blocks;
2742 uint64_t zdde_ref_lsize;
2743 uint64_t zdde_ref_psize;
2744 uint64_t zdde_ref_dsize;
2745 avl_node_t zdde_node;
2750 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2751 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2753 avl_tree_t *t = arg;
2755 zdb_ddt_entry_t *zdde, zdde_search;
2757 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
2760 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2761 (void) printf("traversing objset %llu, %llu objects, "
2762 "%lu blocks so far\n",
2763 (u_longlong_t)zb->zb_objset,
2764 (u_longlong_t)BP_GET_FILL(bp),
2768 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2769 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2772 ddt_key_fill(&zdde_search.zdde_key, bp);
2774 zdde = avl_find(t, &zdde_search, &where);
2777 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2778 zdde->zdde_key = zdde_search.zdde_key;
2779 avl_insert(t, zdde, where);
2782 zdde->zdde_ref_blocks += 1;
2783 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2784 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2785 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2791 dump_simulated_ddt(spa_t *spa)
2794 void *cookie = NULL;
2795 zdb_ddt_entry_t *zdde;
2796 ddt_histogram_t ddh_total = { 0 };
2797 ddt_stat_t dds_total = { 0 };
2799 avl_create(&t, ddt_entry_compare,
2800 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2802 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2804 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2805 zdb_ddt_add_cb, &t);
2807 spa_config_exit(spa, SCL_CONFIG, FTAG);
2809 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2811 uint64_t refcnt = zdde->zdde_ref_blocks;
2812 ASSERT(refcnt != 0);
2814 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2815 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2816 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2817 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2819 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2820 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2821 dds.dds_ref_psize = zdde->zdde_ref_psize;
2822 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2824 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
2827 umem_free(zdde, sizeof (*zdde));
2832 ddt_histogram_stat(&dds_total, &ddh_total);
2834 (void) printf("Simulated DDT histogram:\n");
2836 zpool_dump_ddt(&dds_total, &ddh_total);
2838 dump_dedup_ratio(&dds_total);
2842 dump_zpool(spa_t *spa)
2844 dsl_pool_t *dp = spa_get_dsl(spa);
2847 if (dump_opt['S']) {
2848 dump_simulated_ddt(spa);
2852 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2853 (void) printf("\nCached configuration:\n");
2854 dump_nvlist(spa->spa_config, 8);
2861 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2866 if (dump_opt['d'] > 2 || dump_opt['m'])
2867 dump_metaslabs(spa);
2869 if (dump_opt['d'] || dump_opt['i']) {
2870 dump_dir(dp->dp_meta_objset);
2871 if (dump_opt['d'] >= 3) {
2872 dump_bpobj(&spa->spa_deferred_bpobj,
2873 "Deferred frees", 0);
2874 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2875 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2876 "Pool snapshot frees", 0);
2879 if (spa_feature_is_active(spa,
2880 SPA_FEATURE_ASYNC_DESTROY)) {
2881 dump_bptree(spa->spa_meta_objset,
2882 spa->spa_dsl_pool->dp_bptree_obj,
2883 "Pool dataset frees");
2885 dump_dtl(spa->spa_root_vdev, 0);
2887 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
2888 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
2890 if (dump_opt['b'] || dump_opt['c'])
2891 rc = dump_block_stats(spa);
2894 rc = verify_spacemap_refcounts(spa);
2897 show_pool_stats(spa);
2906 #define ZDB_FLAG_CHECKSUM 0x0001
2907 #define ZDB_FLAG_DECOMPRESS 0x0002
2908 #define ZDB_FLAG_BSWAP 0x0004
2909 #define ZDB_FLAG_GBH 0x0008
2910 #define ZDB_FLAG_INDIRECT 0x0010
2911 #define ZDB_FLAG_PHYS 0x0020
2912 #define ZDB_FLAG_RAW 0x0040
2913 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
2918 zdb_print_blkptr(blkptr_t *bp, int flags)
2920 char blkbuf[BP_SPRINTF_LEN];
2922 if (flags & ZDB_FLAG_BSWAP)
2923 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
2925 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2926 (void) printf("%s\n", blkbuf);
2930 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
2934 for (i = 0; i < nbps; i++)
2935 zdb_print_blkptr(&bp[i], flags);
2939 zdb_dump_gbh(void *buf, int flags)
2941 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
2945 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
2947 if (flags & ZDB_FLAG_BSWAP)
2948 byteswap_uint64_array(buf, size);
2949 (void) write(1, buf, size);
2953 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
2955 uint64_t *d = (uint64_t *)buf;
2956 int nwords = size / sizeof (uint64_t);
2957 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
2963 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
2965 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
2967 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
2969 for (i = 0; i < nwords; i += 2) {
2970 (void) printf("%06llx: %016llx %016llx ",
2971 (u_longlong_t)(i * sizeof (uint64_t)),
2972 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
2973 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
2976 for (j = 0; j < 2 * sizeof (uint64_t); j++)
2977 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
2978 (void) printf("\n");
2983 * There are two acceptable formats:
2984 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
2985 * child[.child]* - For example: 0.1.1
2987 * The second form can be used to specify arbitrary vdevs anywhere
2988 * in the heirarchy. For example, in a pool with a mirror of
2989 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
2992 zdb_vdev_lookup(vdev_t *vdev, char *path)
3000 /* First, assume the x.x.x.x format */
3001 i = (int)strtoul(path, &s, 10);
3002 if (s == path || (s && *s != '.' && *s != '\0'))
3004 if (i < 0 || i >= vdev->vdev_children)
3007 vdev = vdev->vdev_child[i];
3010 return (zdb_vdev_lookup(vdev, s+1));
3013 for (i = 0; i < vdev->vdev_children; i++) {
3014 vdev_t *vc = vdev->vdev_child[i];
3016 if (vc->vdev_path == NULL) {
3017 vc = zdb_vdev_lookup(vc, path);
3024 p = strrchr(vc->vdev_path, '/');
3025 p = p ? p + 1 : vc->vdev_path;
3026 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3028 if (strcmp(vc->vdev_path, path) == 0)
3030 if (strcmp(p, path) == 0)
3032 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3040 * Read a block from a pool and print it out. The syntax of the
3041 * block descriptor is:
3043 * pool:vdev_specifier:offset:size[:flags]
3045 * pool - The name of the pool you wish to read from
3046 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3047 * offset - offset, in hex, in bytes
3048 * size - Amount of data to read, in hex, in bytes
3049 * flags - A string of characters specifying options
3050 * b: Decode a blkptr at given offset within block
3051 * *c: Calculate and display checksums
3052 * d: Decompress data before dumping
3053 * e: Byteswap data before dumping
3054 * g: Display data as a gang block header
3055 * i: Display as an indirect block
3056 * p: Do I/O to physical offset
3057 * r: Dump raw data to stdout
3059 * * = not yet implemented
3062 zdb_read_block(char *thing, spa_t *spa)
3064 blkptr_t blk, *bp = &blk;
3065 dva_t *dva = bp->blk_dva;
3067 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3070 void *pbuf, *lbuf, *buf;
3071 char *s, *p, *dup, *vdev, *flagstr;
3074 dup = strdup(thing);
3075 s = strtok(dup, ":");
3077 s = strtok(NULL, ":");
3078 offset = strtoull(s ? s : "", NULL, 16);
3079 s = strtok(NULL, ":");
3080 size = strtoull(s ? s : "", NULL, 16);
3081 s = strtok(NULL, ":");
3082 flagstr = s ? s : "";
3086 s = "size must not be zero";
3087 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3088 s = "size must be a multiple of sector size";
3089 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3090 s = "offset must be a multiple of sector size";
3092 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3097 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3098 for (i = 0; flagstr[i]; i++) {
3099 int bit = flagbits[(uchar_t)flagstr[i]];
3102 (void) printf("***Invalid flag: %c\n",
3108 /* If it's not something with an argument, keep going */
3109 if ((bit & (ZDB_FLAG_CHECKSUM |
3110 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3113 p = &flagstr[i + 1];
3114 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3115 blkptr_offset = strtoull(p, &p, 16);
3116 if (*p != ':' && *p != '\0') {
3117 (void) printf("***Invalid flag arg: '%s'\n", s);
3121 i += p - &flagstr[i + 1]; /* skip over the number */
3125 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3127 (void) printf("***Invalid vdev: %s\n", vdev);
3132 (void) fprintf(stderr, "Found vdev: %s\n",
3135 (void) fprintf(stderr, "Found vdev type: %s\n",
3136 vd->vdev_ops->vdev_op_type);
3142 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3143 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3147 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3148 DVA_SET_OFFSET(&dva[0], offset);
3149 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3150 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3152 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3154 BP_SET_LSIZE(bp, lsize);
3155 BP_SET_PSIZE(bp, psize);
3156 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3157 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3158 BP_SET_TYPE(bp, DMU_OT_NONE);
3159 BP_SET_LEVEL(bp, 0);
3160 BP_SET_DEDUP(bp, 0);
3161 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3163 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3164 zio = zio_root(spa, NULL, NULL, 0);
3166 if (vd == vd->vdev_top) {
3168 * Treat this as a normal block read.
3170 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3171 ZIO_PRIORITY_SYNC_READ,
3172 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3175 * Treat this as a vdev child I/O.
3177 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3178 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3179 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3180 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3181 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3184 error = zio_wait(zio);
3185 spa_config_exit(spa, SCL_STATE, FTAG);
3188 (void) printf("Read of %s failed, error: %d\n", thing, error);
3192 if (flags & ZDB_FLAG_DECOMPRESS) {
3194 * We don't know how the data was compressed, so just try
3195 * every decompress function at every inflated blocksize.
3197 enum zio_compress c;
3198 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3199 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3201 bcopy(pbuf, pbuf2, psize);
3203 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3204 SPA_MAXBLOCKSIZE - psize) == 0);
3206 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3207 SPA_MAXBLOCKSIZE - psize) == 0);
3209 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3210 lsize -= SPA_MINBLOCKSIZE) {
3211 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3212 if (zio_decompress_data(c, pbuf, lbuf,
3213 psize, lsize) == 0 &&
3214 zio_decompress_data(c, pbuf2, lbuf2,
3215 psize, lsize) == 0 &&
3216 bcmp(lbuf, lbuf2, lsize) == 0)
3219 if (c != ZIO_COMPRESS_FUNCTIONS)
3221 lsize -= SPA_MINBLOCKSIZE;
3224 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3225 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3227 if (lsize <= psize) {
3228 (void) printf("Decompress of %s failed\n", thing);
3238 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3239 zdb_print_blkptr((blkptr_t *)(void *)
3240 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3241 else if (flags & ZDB_FLAG_RAW)
3242 zdb_dump_block_raw(buf, size, flags);
3243 else if (flags & ZDB_FLAG_INDIRECT)
3244 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3246 else if (flags & ZDB_FLAG_GBH)
3247 zdb_dump_gbh(buf, flags);
3249 zdb_dump_block(thing, buf, size, flags);
3252 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3253 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3258 pool_match(nvlist_t *cfg, char *tgt)
3260 uint64_t v, guid = strtoull(tgt, NULL, 0);
3264 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3267 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3268 return (strcmp(s, tgt) == 0);
3274 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3277 nvlist_t *match = NULL;
3282 importargs_t args = { 0 };
3286 args.can_be_active = B_TRUE;
3288 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3293 pools = zpool_search_import(g_zfs, &args);
3295 if (pools != NULL) {
3296 nvpair_t *elem = NULL;
3297 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3298 verify(nvpair_value_nvlist(elem, configp) == 0);
3299 if (pool_match(*configp, *target)) {
3301 if (match != NULL) {
3302 /* print previously found config */
3304 (void) printf("%s\n", name);
3305 dump_nvlist(match, 8);
3308 (void) printf("%s\n",
3310 dump_nvlist(*configp, 8);
3313 name = nvpair_name(elem);
3319 (void) fatal("\tMatched %d pools - use pool GUID "
3320 "instead of pool name or \n"
3321 "\tpool name part of a dataset name to select pool", count);
3326 * If pool GUID was specified for pool id, replace it with pool name
3328 if (name && (strstr(*target, name) != *target)) {
3329 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3331 *target = umem_alloc(sz, UMEM_NOFAIL);
3332 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3335 *configp = name ? match : NULL;
3341 main(int argc, char **argv)
3344 struct rlimit rl = { 1024, 1024 };
3346 objset_t *os = NULL;
3350 char **searchdirs = NULL;
3353 nvlist_t *policy = NULL;
3354 uint64_t max_txg = UINT64_MAX;
3355 int rewind = ZPOOL_NEVER_REWIND;
3357 (void) setrlimit(RLIMIT_NOFILE, &rl);
3358 (void) enable_extended_FILE_stdio(-1, -1);
3360 dprintf_setup(&argc, argv);
3362 while ((c = getopt(argc, argv,
3363 "bcdhilmM:suCDRSAFLXx:evp:t:U:P")) != -1) {
3393 max_inflight = strtoull(optarg, NULL, 0);
3394 if (max_inflight == 0) {
3395 (void) fprintf(stderr, "maximum number "
3396 "of inflight I/Os must be greater "
3402 if (searchdirs == NULL) {
3403 searchdirs = umem_alloc(sizeof (char *),
3406 char **tmp = umem_alloc((nsearch + 1) *
3407 sizeof (char *), UMEM_NOFAIL);
3408 bcopy(searchdirs, tmp, nsearch *
3410 umem_free(searchdirs,
3411 nsearch * sizeof (char *));
3414 searchdirs[nsearch++] = optarg;
3417 vn_dumpdir = optarg;
3420 max_txg = strtoull(optarg, NULL, 0);
3421 if (max_txg < TXG_INITIAL) {
3422 (void) fprintf(stderr, "incorrect txg "
3423 "specified: %s\n", optarg);
3428 spa_config_path = optarg;
3436 if (!dump_opt['e'] && searchdirs != NULL) {
3437 (void) fprintf(stderr, "-p option requires use of -e\n");
3442 g_zfs = libzfs_init();
3443 ASSERT(g_zfs != NULL);
3446 verbose = MAX(verbose, 1);
3448 for (c = 0; c < 256; c++) {
3449 if (dump_all && !strchr("elAFLRSXP", c))
3452 dump_opt[c] += verbose;
3455 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3456 zfs_recover = (dump_opt['A'] > 1);
3461 if (argc < 2 && dump_opt['R'])
3464 if (!dump_opt['e'] && dump_opt['C']) {
3465 dump_cachefile(spa_config_path);
3471 if (dump_opt['l']) {
3472 dump_label(argv[0]);
3476 if (dump_opt['X'] || dump_opt['F'])
3477 rewind = ZPOOL_DO_REWIND |
3478 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3480 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3481 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3482 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3483 fatal("internal error: %s", strerror(ENOMEM));
3488 if (dump_opt['e']) {
3489 nvlist_t *cfg = NULL;
3490 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3494 if (dump_opt['C'] > 1) {
3495 (void) printf("\nConfiguration for import:\n");
3496 dump_nvlist(cfg, 8);
3498 if (nvlist_add_nvlist(cfg,
3499 ZPOOL_REWIND_POLICY, policy) != 0) {
3500 fatal("can't open '%s': %s",
3501 target, strerror(ENOMEM));
3503 if ((error = spa_import(name, cfg, NULL,
3504 ZFS_IMPORT_MISSING_LOG)) != 0) {
3505 error = spa_import(name, cfg, NULL,
3506 ZFS_IMPORT_VERBATIM);
3512 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3513 error = spa_open_rewind(target, &spa, FTAG, policy,
3517 * If we're missing the log device then
3518 * try opening the pool after clearing the
3521 mutex_enter(&spa_namespace_lock);
3522 if ((spa = spa_lookup(target)) != NULL &&
3523 spa->spa_log_state == SPA_LOG_MISSING) {
3524 spa->spa_log_state = SPA_LOG_CLEAR;
3527 mutex_exit(&spa_namespace_lock);
3530 error = spa_open_rewind(target, &spa,
3531 FTAG, policy, NULL);
3535 error = dmu_objset_own(target, DMU_OST_ANY,
3539 nvlist_free(policy);
3542 fatal("can't open '%s': %s", target, strerror(error));
3546 if (!dump_opt['R']) {
3548 zopt_objects = argc;
3549 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3550 for (i = 0; i < zopt_objects; i++) {
3552 zopt_object[i] = strtoull(argv[i], NULL, 0);
3553 if (zopt_object[i] == 0 && errno != 0)
3554 fatal("bad number %s: %s",
3555 argv[i], strerror(errno));
3560 } else if (zopt_objects > 0 && !dump_opt['m']) {
3561 dump_dir(spa->spa_meta_objset);
3566 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3567 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3568 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3569 flagbits['e'] = ZDB_FLAG_BSWAP;
3570 flagbits['g'] = ZDB_FLAG_GBH;
3571 flagbits['i'] = ZDB_FLAG_INDIRECT;
3572 flagbits['p'] = ZDB_FLAG_PHYS;
3573 flagbits['r'] = ZDB_FLAG_RAW;
3575 for (i = 0; i < argc; i++)
3576 zdb_read_block(argv[i], spa);
3579 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3581 fuid_table_destroy();
3582 sa_loaded = B_FALSE;