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>
67 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
68 zio_compress_table[(idx)].ci_name : "UNKNOWN")
69 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
70 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
71 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
72 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
73 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
74 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
75 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
76 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
79 extern boolean_t zfs_recover;
80 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
81 extern int zfs_vdev_async_read_max_active;
83 boolean_t zfs_recover;
84 uint64_t zfs_arc_max, zfs_arc_meta_limit;
85 int zfs_vdev_async_read_max_active;
88 const char cmdname[] = "zdb";
89 uint8_t dump_opt[256];
91 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
93 extern void dump_intent_log(zilog_t *);
94 uint64_t *zopt_object = NULL;
96 libzfs_handle_t *g_zfs;
97 uint64_t max_inflight = 1000;
99 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
102 * These libumem hooks provide a reasonable set of defaults for the allocator's
103 * debugging facilities.
108 return ("default,verbose"); /* $UMEM_DEBUG setting */
112 _umem_logging_init(void)
114 return ("fail,contents"); /* $UMEM_LOGGING setting */
120 (void) fprintf(stderr,
121 "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
122 "[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n"
123 " %s [-divPA] [-e -p path...] [-U config] dataset "
125 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
126 "poolname [vdev [metaslab...]]\n"
127 " %s -R [-A] [-e [-p path...]] poolname "
128 "vdev:offset:size[:flags]\n"
129 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
130 " %s -l [-uA] device\n"
131 " %s -C [-A] [-U config]\n\n",
132 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
134 (void) fprintf(stderr, " Dataset name must include at least one "
135 "separator character '/' or '@'\n");
136 (void) fprintf(stderr, " If dataset name is specified, only that "
137 "dataset is dumped\n");
138 (void) fprintf(stderr, " If object numbers are specified, only "
139 "those objects are dumped\n\n");
140 (void) fprintf(stderr, " Options to control amount of output:\n");
141 (void) fprintf(stderr, " -u uberblock\n");
142 (void) fprintf(stderr, " -d dataset(s)\n");
143 (void) fprintf(stderr, " -i intent logs\n");
144 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
145 (void) fprintf(stderr, " -h pool history\n");
146 (void) fprintf(stderr, " -b block statistics\n");
147 (void) fprintf(stderr, " -m metaslabs\n");
148 (void) fprintf(stderr, " -M metaslab groups\n");
149 (void) fprintf(stderr, " -c checksum all metadata (twice for "
150 "all data) blocks\n");
151 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
152 (void) fprintf(stderr, " -D dedup statistics\n");
153 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
154 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
155 (void) fprintf(stderr, " -l dump label contents\n");
156 (void) fprintf(stderr, " -L disable leak tracking (do not "
157 "load spacemaps)\n");
158 (void) fprintf(stderr, " -R read and display block from a "
160 (void) fprintf(stderr, " Below options are intended for use "
161 "with other options:\n");
162 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
163 "panic recovery (-AA) or both (-AAA)\n");
164 (void) fprintf(stderr, " -F attempt automatic rewind within "
165 "safe range of transaction groups\n");
166 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
168 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
169 "work with dataset)\n");
170 (void) fprintf(stderr, " -e pool is exported/destroyed/"
171 "has altroot/not in a cachefile\n");
172 (void) fprintf(stderr, " -p <path> -- use one or more with "
173 "-e to specify path to vdev dir\n");
174 (void) fprintf(stderr, " -x <dumpdir> -- "
175 "dump all read blocks into specified directory\n");
176 (void) fprintf(stderr, " -P print numbers in parseable form\n");
177 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
178 "searching for uberblocks\n");
179 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
180 "specify the maximum number of "
181 "checksumming I/Os [default is 200]\n");
182 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
183 "to make only that option verbose\n");
184 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
189 * Called for usage errors that are discovered after a call to spa_open(),
190 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
194 fatal(const char *fmt, ...)
199 (void) fprintf(stderr, "%s: ", cmdname);
200 (void) vfprintf(stderr, fmt, ap);
202 (void) fprintf(stderr, "\n");
209 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
212 size_t nvsize = *(uint64_t *)data;
213 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
215 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
217 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
219 umem_free(packed, nvsize);
228 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
230 spa_history_phys_t *shp = data;
235 (void) printf("\t\tpool_create_len = %llu\n",
236 (u_longlong_t)shp->sh_pool_create_len);
237 (void) printf("\t\tphys_max_off = %llu\n",
238 (u_longlong_t)shp->sh_phys_max_off);
239 (void) printf("\t\tbof = %llu\n",
240 (u_longlong_t)shp->sh_bof);
241 (void) printf("\t\teof = %llu\n",
242 (u_longlong_t)shp->sh_eof);
243 (void) printf("\t\trecords_lost = %llu\n",
244 (u_longlong_t)shp->sh_records_lost);
248 zdb_nicenum(uint64_t num, char *buf)
251 (void) sprintf(buf, "%llu", (longlong_t)num);
256 const char histo_stars[] = "****************************************";
257 const int histo_width = sizeof (histo_stars) - 1;
260 dump_histogram(const uint64_t *histo, int size, int offset)
263 int minidx = size - 1;
267 for (i = 0; i < size; i++) {
270 if (histo[i] > 0 && i > maxidx)
272 if (histo[i] > 0 && i < minidx)
276 if (max < histo_width)
279 for (i = minidx; i <= maxidx; i++) {
280 (void) printf("\t\t\t%3u: %6llu %s\n",
281 i + offset, (u_longlong_t)histo[i],
282 &histo_stars[(max - histo[i]) * histo_width / max]);
287 dump_zap_stats(objset_t *os, uint64_t object)
292 error = zap_get_stats(os, object, &zs);
296 if (zs.zs_ptrtbl_len == 0) {
297 ASSERT(zs.zs_num_blocks == 1);
298 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
299 (u_longlong_t)zs.zs_blocksize,
300 (u_longlong_t)zs.zs_num_entries);
304 (void) printf("\tFat ZAP stats:\n");
306 (void) printf("\t\tPointer table:\n");
307 (void) printf("\t\t\t%llu elements\n",
308 (u_longlong_t)zs.zs_ptrtbl_len);
309 (void) printf("\t\t\tzt_blk: %llu\n",
310 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
311 (void) printf("\t\t\tzt_numblks: %llu\n",
312 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
313 (void) printf("\t\t\tzt_shift: %llu\n",
314 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
315 (void) printf("\t\t\tzt_blks_copied: %llu\n",
316 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
317 (void) printf("\t\t\tzt_nextblk: %llu\n",
318 (u_longlong_t)zs.zs_ptrtbl_nextblk);
320 (void) printf("\t\tZAP entries: %llu\n",
321 (u_longlong_t)zs.zs_num_entries);
322 (void) printf("\t\tLeaf blocks: %llu\n",
323 (u_longlong_t)zs.zs_num_leafs);
324 (void) printf("\t\tTotal blocks: %llu\n",
325 (u_longlong_t)zs.zs_num_blocks);
326 (void) printf("\t\tzap_block_type: 0x%llx\n",
327 (u_longlong_t)zs.zs_block_type);
328 (void) printf("\t\tzap_magic: 0x%llx\n",
329 (u_longlong_t)zs.zs_magic);
330 (void) printf("\t\tzap_salt: 0x%llx\n",
331 (u_longlong_t)zs.zs_salt);
333 (void) printf("\t\tLeafs with 2^n pointers:\n");
334 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
336 (void) printf("\t\tBlocks with n*5 entries:\n");
337 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
339 (void) printf("\t\tBlocks n/10 full:\n");
340 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
342 (void) printf("\t\tEntries with n chunks:\n");
343 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
345 (void) printf("\t\tBuckets with n entries:\n");
346 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
351 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
357 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
359 (void) printf("\tUNKNOWN OBJECT TYPE\n");
364 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
370 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
376 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
379 zap_attribute_t attr;
383 dump_zap_stats(os, object);
386 for (zap_cursor_init(&zc, os, object);
387 zap_cursor_retrieve(&zc, &attr) == 0;
388 zap_cursor_advance(&zc)) {
389 (void) printf("\t\t%s = ", attr.za_name);
390 if (attr.za_num_integers == 0) {
394 prop = umem_zalloc(attr.za_num_integers *
395 attr.za_integer_length, UMEM_NOFAIL);
396 (void) zap_lookup(os, object, attr.za_name,
397 attr.za_integer_length, attr.za_num_integers, prop);
398 if (attr.za_integer_length == 1) {
399 (void) printf("%s", (char *)prop);
401 for (i = 0; i < attr.za_num_integers; i++) {
402 switch (attr.za_integer_length) {
405 ((uint16_t *)prop)[i]);
409 ((uint32_t *)prop)[i]);
412 (void) printf("%lld ",
413 (u_longlong_t)((int64_t *)prop)[i]);
419 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
421 zap_cursor_fini(&zc);
425 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
427 bpobj_phys_t *bpop = data;
428 char bytes[32], comp[32], uncomp[32];
433 zdb_nicenum(bpop->bpo_bytes, bytes);
434 zdb_nicenum(bpop->bpo_comp, comp);
435 zdb_nicenum(bpop->bpo_uncomp, uncomp);
437 (void) printf("\t\tnum_blkptrs = %llu\n",
438 (u_longlong_t)bpop->bpo_num_blkptrs);
439 (void) printf("\t\tbytes = %s\n", bytes);
440 if (size >= BPOBJ_SIZE_V1) {
441 (void) printf("\t\tcomp = %s\n", comp);
442 (void) printf("\t\tuncomp = %s\n", uncomp);
444 if (size >= sizeof (*bpop)) {
445 (void) printf("\t\tsubobjs = %llu\n",
446 (u_longlong_t)bpop->bpo_subobjs);
447 (void) printf("\t\tnum_subobjs = %llu\n",
448 (u_longlong_t)bpop->bpo_num_subobjs);
451 if (dump_opt['d'] < 5)
454 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
455 char blkbuf[BP_SPRINTF_LEN];
458 int err = dmu_read(os, object,
459 i * sizeof (bp), sizeof (bp), &bp, 0);
461 (void) printf("got error %u from dmu_read\n", err);
464 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
465 (void) printf("\t%s\n", blkbuf);
471 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
473 dmu_object_info_t doi;
475 VERIFY0(dmu_object_info(os, object, &doi));
476 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
478 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
480 (void) printf("got error %u from dmu_read\n", err);
481 kmem_free(subobjs, doi.doi_max_offset);
485 int64_t last_nonzero = -1;
486 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
491 for (int64_t i = 0; i <= last_nonzero; i++) {
492 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
494 kmem_free(subobjs, doi.doi_max_offset);
499 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
501 dump_zap_stats(os, object);
502 /* contents are printed elsewhere, properly decoded */
507 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
510 zap_attribute_t attr;
512 dump_zap_stats(os, object);
515 for (zap_cursor_init(&zc, os, object);
516 zap_cursor_retrieve(&zc, &attr) == 0;
517 zap_cursor_advance(&zc)) {
518 (void) printf("\t\t%s = ", attr.za_name);
519 if (attr.za_num_integers == 0) {
523 (void) printf(" %llx : [%d:%d:%d]\n",
524 (u_longlong_t)attr.za_first_integer,
525 (int)ATTR_LENGTH(attr.za_first_integer),
526 (int)ATTR_BSWAP(attr.za_first_integer),
527 (int)ATTR_NUM(attr.za_first_integer));
529 zap_cursor_fini(&zc);
534 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
537 zap_attribute_t attr;
538 uint16_t *layout_attrs;
541 dump_zap_stats(os, object);
544 for (zap_cursor_init(&zc, os, object);
545 zap_cursor_retrieve(&zc, &attr) == 0;
546 zap_cursor_advance(&zc)) {
547 (void) printf("\t\t%s = [", attr.za_name);
548 if (attr.za_num_integers == 0) {
553 VERIFY(attr.za_integer_length == 2);
554 layout_attrs = umem_zalloc(attr.za_num_integers *
555 attr.za_integer_length, UMEM_NOFAIL);
557 VERIFY(zap_lookup(os, object, attr.za_name,
558 attr.za_integer_length,
559 attr.za_num_integers, layout_attrs) == 0);
561 for (i = 0; i != attr.za_num_integers; i++)
562 (void) printf(" %d ", (int)layout_attrs[i]);
563 (void) printf("]\n");
564 umem_free(layout_attrs,
565 attr.za_num_integers * attr.za_integer_length);
567 zap_cursor_fini(&zc);
572 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
575 zap_attribute_t attr;
576 const char *typenames[] = {
577 /* 0 */ "not specified",
579 /* 2 */ "Character Device",
580 /* 3 */ "3 (invalid)",
582 /* 5 */ "5 (invalid)",
583 /* 6 */ "Block Device",
584 /* 7 */ "7 (invalid)",
585 /* 8 */ "Regular File",
586 /* 9 */ "9 (invalid)",
587 /* 10 */ "Symbolic Link",
588 /* 11 */ "11 (invalid)",
591 /* 14 */ "Event Port",
592 /* 15 */ "15 (invalid)",
595 dump_zap_stats(os, object);
598 for (zap_cursor_init(&zc, os, object);
599 zap_cursor_retrieve(&zc, &attr) == 0;
600 zap_cursor_advance(&zc)) {
601 (void) printf("\t\t%s = %lld (type: %s)\n",
602 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
603 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
605 zap_cursor_fini(&zc);
609 get_dtl_refcount(vdev_t *vd)
613 if (vd->vdev_ops->vdev_op_leaf) {
614 space_map_t *sm = vd->vdev_dtl_sm;
617 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
622 for (int c = 0; c < vd->vdev_children; c++)
623 refcount += get_dtl_refcount(vd->vdev_child[c]);
628 get_metaslab_refcount(vdev_t *vd)
632 if (vd->vdev_top == vd && !vd->vdev_removing) {
633 for (int m = 0; m < vd->vdev_ms_count; m++) {
634 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
637 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
641 for (int c = 0; c < vd->vdev_children; c++)
642 refcount += get_metaslab_refcount(vd->vdev_child[c]);
648 verify_spacemap_refcounts(spa_t *spa)
650 uint64_t expected_refcount = 0;
651 uint64_t actual_refcount;
653 (void) feature_get_refcount(spa,
654 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
656 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
657 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
659 if (expected_refcount != actual_refcount) {
660 (void) printf("space map refcount mismatch: expected %lld != "
662 (longlong_t)expected_refcount,
663 (longlong_t)actual_refcount);
670 dump_spacemap(objset_t *os, space_map_t *sm)
672 uint64_t alloc, offset, entry;
673 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
674 "INVALID", "INVALID", "INVALID", "INVALID" };
680 * Print out the freelist entries in both encoded and decoded form.
683 for (offset = 0; offset < space_map_length(sm);
684 offset += sizeof (entry)) {
685 uint8_t mapshift = sm->sm_shift;
687 VERIFY0(dmu_read(os, space_map_object(sm), offset,
688 sizeof (entry), &entry, DMU_READ_PREFETCH));
689 if (SM_DEBUG_DECODE(entry)) {
691 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
692 (u_longlong_t)(offset / sizeof (entry)),
693 ddata[SM_DEBUG_ACTION_DECODE(entry)],
694 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
695 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
697 (void) printf("\t [%6llu] %c range:"
698 " %010llx-%010llx size: %06llx\n",
699 (u_longlong_t)(offset / sizeof (entry)),
700 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
701 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
702 mapshift) + sm->sm_start),
703 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
704 mapshift) + sm->sm_start +
705 (SM_RUN_DECODE(entry) << mapshift)),
706 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
707 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
708 alloc += SM_RUN_DECODE(entry) << mapshift;
710 alloc -= SM_RUN_DECODE(entry) << mapshift;
713 if (alloc != space_map_allocated(sm)) {
714 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
715 "with space map summary (%llu)\n",
716 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
721 dump_metaslab_stats(metaslab_t *msp)
724 range_tree_t *rt = msp->ms_tree;
725 avl_tree_t *t = &msp->ms_size_tree;
726 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
728 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
730 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
731 "segments", avl_numnodes(t), "maxsize", maxbuf,
732 "freepct", free_pct);
733 (void) printf("\tIn-memory histogram:\n");
734 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
738 dump_metaslab(metaslab_t *msp)
740 vdev_t *vd = msp->ms_group->mg_vd;
741 spa_t *spa = vd->vdev_spa;
742 space_map_t *sm = msp->ms_sm;
745 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
748 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
749 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
750 (u_longlong_t)space_map_object(sm), freebuf);
752 if (dump_opt['m'] > 2 && !dump_opt['L']) {
753 mutex_enter(&msp->ms_lock);
754 metaslab_load_wait(msp);
755 if (!msp->ms_loaded) {
756 VERIFY0(metaslab_load(msp));
757 range_tree_stat_verify(msp->ms_tree);
759 dump_metaslab_stats(msp);
760 metaslab_unload(msp);
761 mutex_exit(&msp->ms_lock);
764 if (dump_opt['m'] > 1 && sm != NULL &&
765 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
767 * The space map histogram represents free space in chunks
768 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
770 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
771 (u_longlong_t)msp->ms_fragmentation);
772 dump_histogram(sm->sm_phys->smp_histogram,
773 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
776 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
777 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
779 mutex_enter(&msp->ms_lock);
780 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
781 mutex_exit(&msp->ms_lock);
786 print_vdev_metaslab_header(vdev_t *vd)
788 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
789 (u_longlong_t)vd->vdev_id,
790 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
791 "offset", "spacemap", "free");
792 (void) printf("\t%15s %19s %15s %10s\n",
793 "---------------", "-------------------",
794 "---------------", "-------------");
798 dump_metaslab_groups(spa_t *spa)
800 vdev_t *rvd = spa->spa_root_vdev;
801 metaslab_class_t *mc = spa_normal_class(spa);
802 uint64_t fragmentation;
804 metaslab_class_histogram_verify(mc);
806 for (int c = 0; c < rvd->vdev_children; c++) {
807 vdev_t *tvd = rvd->vdev_child[c];
808 metaslab_group_t *mg = tvd->vdev_mg;
810 if (mg->mg_class != mc)
813 metaslab_group_histogram_verify(mg);
814 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
816 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
818 (u_longlong_t)tvd->vdev_id,
819 (u_longlong_t)tvd->vdev_ms_count);
820 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
821 (void) printf("%3s\n", "-");
823 (void) printf("%3llu%%\n",
824 (u_longlong_t)mg->mg_fragmentation);
826 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
829 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
830 fragmentation = metaslab_class_fragmentation(mc);
831 if (fragmentation == ZFS_FRAG_INVALID)
832 (void) printf("\t%3s\n", "-");
834 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
835 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
839 dump_metaslabs(spa_t *spa)
841 vdev_t *vd, *rvd = spa->spa_root_vdev;
842 uint64_t m, c = 0, children = rvd->vdev_children;
844 (void) printf("\nMetaslabs:\n");
846 if (!dump_opt['d'] && zopt_objects > 0) {
850 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
852 if (zopt_objects > 1) {
853 vd = rvd->vdev_child[c];
854 print_vdev_metaslab_header(vd);
856 for (m = 1; m < zopt_objects; m++) {
857 if (zopt_object[m] < vd->vdev_ms_count)
859 vd->vdev_ms[zopt_object[m]]);
861 (void) fprintf(stderr, "bad metaslab "
863 (u_longlong_t)zopt_object[m]);
870 for (; c < children; c++) {
871 vd = rvd->vdev_child[c];
872 print_vdev_metaslab_header(vd);
874 for (m = 0; m < vd->vdev_ms_count; m++)
875 dump_metaslab(vd->vdev_ms[m]);
881 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
883 const ddt_phys_t *ddp = dde->dde_phys;
884 const ddt_key_t *ddk = &dde->dde_key;
885 char *types[4] = { "ditto", "single", "double", "triple" };
886 char blkbuf[BP_SPRINTF_LEN];
889 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
890 if (ddp->ddp_phys_birth == 0)
892 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
893 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
894 (void) printf("index %llx refcnt %llu %s %s\n",
895 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
901 dump_dedup_ratio(const ddt_stat_t *dds)
903 double rL, rP, rD, D, dedup, compress, copies;
905 if (dds->dds_blocks == 0)
908 rL = (double)dds->dds_ref_lsize;
909 rP = (double)dds->dds_ref_psize;
910 rD = (double)dds->dds_ref_dsize;
911 D = (double)dds->dds_dsize;
917 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
918 "dedup * compress / copies = %.2f\n\n",
919 dedup, compress, copies, dedup * compress / copies);
923 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
925 char name[DDT_NAMELEN];
928 dmu_object_info_t doi;
929 uint64_t count, dspace, mspace;
932 error = ddt_object_info(ddt, type, class, &doi);
938 error = ddt_object_count(ddt, type, class, &count);
943 dspace = doi.doi_physical_blocks_512 << 9;
944 mspace = doi.doi_fill_count * doi.doi_data_block_size;
946 ddt_object_name(ddt, type, class, name);
948 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
951 (u_longlong_t)(dspace / count),
952 (u_longlong_t)(mspace / count));
954 if (dump_opt['D'] < 3)
957 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
959 if (dump_opt['D'] < 4)
962 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
965 (void) printf("%s contents:\n\n", name);
967 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
968 dump_dde(ddt, &dde, walk);
970 ASSERT(error == ENOENT);
976 dump_all_ddts(spa_t *spa)
978 ddt_histogram_t ddh_total = { 0 };
979 ddt_stat_t dds_total = { 0 };
981 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
982 ddt_t *ddt = spa->spa_ddt[c];
983 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
984 for (enum ddt_class class = 0; class < DDT_CLASSES;
986 dump_ddt(ddt, type, class);
991 ddt_get_dedup_stats(spa, &dds_total);
993 if (dds_total.dds_blocks == 0) {
994 (void) printf("All DDTs are empty\n");
1000 if (dump_opt['D'] > 1) {
1001 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1002 ddt_get_dedup_histogram(spa, &ddh_total);
1003 zpool_dump_ddt(&dds_total, &ddh_total);
1006 dump_dedup_ratio(&dds_total);
1010 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1014 (void) printf("%s [%llu,%llu) length %llu\n",
1016 (u_longlong_t)start,
1017 (u_longlong_t)(start + size),
1018 (u_longlong_t)(size));
1022 dump_dtl(vdev_t *vd, int indent)
1024 spa_t *spa = vd->vdev_spa;
1026 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
1029 spa_vdev_state_enter(spa, SCL_NONE);
1030 required = vdev_dtl_required(vd);
1031 (void) spa_vdev_state_exit(spa, NULL, 0);
1034 (void) printf("\nDirty time logs:\n\n");
1036 (void) printf("\t%*s%s [%s]\n", indent, "",
1037 vd->vdev_path ? vd->vdev_path :
1038 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1039 required ? "DTL-required" : "DTL-expendable");
1041 for (int t = 0; t < DTL_TYPES; t++) {
1042 range_tree_t *rt = vd->vdev_dtl[t];
1043 if (range_tree_space(rt) == 0)
1045 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1046 indent + 2, "", name[t]);
1047 mutex_enter(rt->rt_lock);
1048 range_tree_walk(rt, dump_dtl_seg, prefix);
1049 mutex_exit(rt->rt_lock);
1050 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1051 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1054 for (int c = 0; c < vd->vdev_children; c++)
1055 dump_dtl(vd->vdev_child[c], indent + 4);
1058 /* from spa_history.c: spa_history_create_obj() */
1059 #define HIS_BUF_LEN_DEF (128 << 10)
1060 #define HIS_BUF_LEN_MAX (1 << 30)
1063 dump_history(spa_t *spa)
1065 nvlist_t **events = NULL;
1067 uint64_t bufsize = HIS_BUF_LEN_DEF;
1068 uint64_t resid, len, off = 0;
1074 char internalstr[MAXPATHLEN];
1076 if ((buf = malloc(bufsize)) == NULL)
1077 (void) fprintf(stderr, "Unable to read history: "
1082 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1083 (void) fprintf(stderr, "Unable to read history: "
1084 "error %d\n", error);
1088 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1093 * If the history block is too big, double the buffer
1094 * size and try again.
1101 if ((bufsize >= HIS_BUF_LEN_MAX) ||
1102 ((buf = malloc(bufsize)) == NULL)) {
1103 (void) fprintf(stderr, "Unable to read history: "
1111 (void) printf("\nHistory:\n");
1112 for (int i = 0; i < num; i++) {
1113 uint64_t time, txg, ievent;
1115 boolean_t printed = B_FALSE;
1117 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1120 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1122 if (nvlist_lookup_uint64(events[i],
1123 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1125 verify(nvlist_lookup_uint64(events[i],
1126 ZPOOL_HIST_TXG, &txg) == 0);
1127 verify(nvlist_lookup_string(events[i],
1128 ZPOOL_HIST_INT_STR, &intstr) == 0);
1129 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1132 (void) snprintf(internalstr,
1133 sizeof (internalstr),
1134 "[internal %s txg:%lld] %s",
1135 zfs_history_event_names[ievent], txg,
1140 (void) localtime_r(&tsec, &t);
1141 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1142 (void) printf("%s %s\n", tbuf, cmd);
1146 if (dump_opt['h'] > 1) {
1148 (void) printf("unrecognized record:\n");
1149 dump_nvlist(events[i], 2);
1156 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1161 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1162 const zbookmark_phys_t *zb)
1165 ASSERT(zb->zb_level < 0);
1166 if (zb->zb_object == 0)
1167 return (zb->zb_blkid);
1168 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1171 ASSERT(zb->zb_level >= 0);
1173 return ((zb->zb_blkid <<
1174 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1175 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1179 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1181 const dva_t *dva = bp->blk_dva;
1182 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1184 if (dump_opt['b'] >= 6) {
1185 snprintf_blkptr(blkbuf, buflen, bp);
1189 if (BP_IS_EMBEDDED(bp)) {
1190 (void) sprintf(blkbuf,
1191 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1192 (int)BPE_GET_ETYPE(bp),
1193 (u_longlong_t)BPE_GET_LSIZE(bp),
1194 (u_longlong_t)BPE_GET_PSIZE(bp),
1195 (u_longlong_t)bp->blk_birth);
1200 for (int i = 0; i < ndvas; i++)
1201 (void) snprintf(blkbuf + strlen(blkbuf),
1202 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1203 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1204 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1205 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1207 if (BP_IS_HOLE(bp)) {
1208 (void) snprintf(blkbuf + strlen(blkbuf),
1209 buflen - strlen(blkbuf),
1211 (u_longlong_t)BP_GET_LSIZE(bp),
1212 (u_longlong_t)bp->blk_birth);
1214 (void) snprintf(blkbuf + strlen(blkbuf),
1215 buflen - strlen(blkbuf),
1216 "%llxL/%llxP F=%llu B=%llu/%llu",
1217 (u_longlong_t)BP_GET_LSIZE(bp),
1218 (u_longlong_t)BP_GET_PSIZE(bp),
1219 (u_longlong_t)BP_GET_FILL(bp),
1220 (u_longlong_t)bp->blk_birth,
1221 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1226 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1227 const dnode_phys_t *dnp)
1229 char blkbuf[BP_SPRINTF_LEN];
1232 if (!BP_IS_EMBEDDED(bp)) {
1233 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1234 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1237 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1239 ASSERT(zb->zb_level >= 0);
1241 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1242 if (l == zb->zb_level) {
1243 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1249 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1250 (void) printf("%s\n", blkbuf);
1254 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1255 blkptr_t *bp, const zbookmark_phys_t *zb)
1259 if (bp->blk_birth == 0)
1262 print_indirect(bp, zb, dnp);
1264 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1265 arc_flags_t flags = ARC_FLAG_WAIT;
1268 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1272 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1273 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1276 ASSERT(buf->b_data);
1278 /* recursively visit blocks below this */
1280 for (i = 0; i < epb; i++, cbp++) {
1281 zbookmark_phys_t czb;
1283 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1285 zb->zb_blkid * epb + i);
1286 err = visit_indirect(spa, dnp, cbp, &czb);
1289 fill += BP_GET_FILL(cbp);
1292 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1293 (void) arc_buf_remove_ref(buf, &buf);
1301 dump_indirect(dnode_t *dn)
1303 dnode_phys_t *dnp = dn->dn_phys;
1305 zbookmark_phys_t czb;
1307 (void) printf("Indirect blocks:\n");
1309 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1310 dn->dn_object, dnp->dn_nlevels - 1, 0);
1311 for (j = 0; j < dnp->dn_nblkptr; j++) {
1313 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1314 &dnp->dn_blkptr[j], &czb);
1317 (void) printf("\n");
1322 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1324 dsl_dir_phys_t *dd = data;
1331 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1333 crtime = dd->dd_creation_time;
1334 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1335 (void) printf("\t\thead_dataset_obj = %llu\n",
1336 (u_longlong_t)dd->dd_head_dataset_obj);
1337 (void) printf("\t\tparent_dir_obj = %llu\n",
1338 (u_longlong_t)dd->dd_parent_obj);
1339 (void) printf("\t\torigin_obj = %llu\n",
1340 (u_longlong_t)dd->dd_origin_obj);
1341 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1342 (u_longlong_t)dd->dd_child_dir_zapobj);
1343 zdb_nicenum(dd->dd_used_bytes, nice);
1344 (void) printf("\t\tused_bytes = %s\n", nice);
1345 zdb_nicenum(dd->dd_compressed_bytes, nice);
1346 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1347 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1348 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1349 zdb_nicenum(dd->dd_quota, nice);
1350 (void) printf("\t\tquota = %s\n", nice);
1351 zdb_nicenum(dd->dd_reserved, nice);
1352 (void) printf("\t\treserved = %s\n", nice);
1353 (void) printf("\t\tprops_zapobj = %llu\n",
1354 (u_longlong_t)dd->dd_props_zapobj);
1355 (void) printf("\t\tdeleg_zapobj = %llu\n",
1356 (u_longlong_t)dd->dd_deleg_zapobj);
1357 (void) printf("\t\tflags = %llx\n",
1358 (u_longlong_t)dd->dd_flags);
1361 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1362 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1373 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1375 dsl_dataset_phys_t *ds = data;
1377 char used[32], compressed[32], uncompressed[32], unique[32];
1378 char blkbuf[BP_SPRINTF_LEN];
1383 ASSERT(size == sizeof (*ds));
1384 crtime = ds->ds_creation_time;
1385 zdb_nicenum(ds->ds_referenced_bytes, used);
1386 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1387 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1388 zdb_nicenum(ds->ds_unique_bytes, unique);
1389 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1391 (void) printf("\t\tdir_obj = %llu\n",
1392 (u_longlong_t)ds->ds_dir_obj);
1393 (void) printf("\t\tprev_snap_obj = %llu\n",
1394 (u_longlong_t)ds->ds_prev_snap_obj);
1395 (void) printf("\t\tprev_snap_txg = %llu\n",
1396 (u_longlong_t)ds->ds_prev_snap_txg);
1397 (void) printf("\t\tnext_snap_obj = %llu\n",
1398 (u_longlong_t)ds->ds_next_snap_obj);
1399 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1400 (u_longlong_t)ds->ds_snapnames_zapobj);
1401 (void) printf("\t\tnum_children = %llu\n",
1402 (u_longlong_t)ds->ds_num_children);
1403 (void) printf("\t\tuserrefs_obj = %llu\n",
1404 (u_longlong_t)ds->ds_userrefs_obj);
1405 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1406 (void) printf("\t\tcreation_txg = %llu\n",
1407 (u_longlong_t)ds->ds_creation_txg);
1408 (void) printf("\t\tdeadlist_obj = %llu\n",
1409 (u_longlong_t)ds->ds_deadlist_obj);
1410 (void) printf("\t\tused_bytes = %s\n", used);
1411 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1412 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1413 (void) printf("\t\tunique = %s\n", unique);
1414 (void) printf("\t\tfsid_guid = %llu\n",
1415 (u_longlong_t)ds->ds_fsid_guid);
1416 (void) printf("\t\tguid = %llu\n",
1417 (u_longlong_t)ds->ds_guid);
1418 (void) printf("\t\tflags = %llx\n",
1419 (u_longlong_t)ds->ds_flags);
1420 (void) printf("\t\tnext_clones_obj = %llu\n",
1421 (u_longlong_t)ds->ds_next_clones_obj);
1422 (void) printf("\t\tprops_obj = %llu\n",
1423 (u_longlong_t)ds->ds_props_obj);
1424 (void) printf("\t\tbp = %s\n", blkbuf);
1429 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1431 char blkbuf[BP_SPRINTF_LEN];
1433 if (bp->blk_birth != 0) {
1434 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1435 (void) printf("\t%s\n", blkbuf);
1441 dump_bptree(objset_t *os, uint64_t obj, char *name)
1447 if (dump_opt['d'] < 3)
1450 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1452 zdb_nicenum(bt->bt_bytes, bytes);
1453 (void) printf("\n %s: %llu datasets, %s\n",
1454 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1455 dmu_buf_rele(db, FTAG);
1457 if (dump_opt['d'] < 5)
1460 (void) printf("\n");
1462 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1467 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1469 char blkbuf[BP_SPRINTF_LEN];
1471 ASSERT(bp->blk_birth != 0);
1472 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1473 (void) printf("\t%s\n", blkbuf);
1478 dump_full_bpobj(bpobj_t *bpo, char *name, int indent)
1484 if (dump_opt['d'] < 3)
1487 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1488 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1489 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1490 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1491 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1492 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1494 (u_longlong_t)bpo->bpo_object,
1495 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1496 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1497 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1498 bytes, comp, uncomp);
1500 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1504 VERIFY0(dmu_read(bpo->bpo_os,
1505 bpo->bpo_phys->bpo_subobjs,
1506 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1507 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1509 (void) printf("ERROR %u while trying to open "
1511 error, (u_longlong_t)subobj);
1514 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1515 bpobj_close(&subbpo);
1518 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1520 (u_longlong_t)bpo->bpo_object,
1521 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1525 if (dump_opt['d'] < 5)
1530 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1531 (void) printf("\n");
1536 dump_deadlist(dsl_deadlist_t *dl)
1538 dsl_deadlist_entry_t *dle;
1544 if (dump_opt['d'] < 3)
1547 if (dl->dl_oldfmt) {
1548 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1552 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1553 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1554 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1555 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1556 bytes, comp, uncomp);
1558 if (dump_opt['d'] < 4)
1561 (void) printf("\n");
1563 /* force the tree to be loaded */
1564 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1566 for (dle = avl_first(&dl->dl_tree); dle;
1567 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1568 if (dump_opt['d'] >= 5) {
1570 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ",
1571 (longlong_t)dle->dle_mintxg,
1572 (longlong_t)dle->dle_bpobj.bpo_object);
1573 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1575 (void) printf("mintxg %llu -> obj %llu\n",
1576 (longlong_t)dle->dle_mintxg,
1577 (longlong_t)dle->dle_bpobj.bpo_object);
1583 static avl_tree_t idx_tree;
1584 static avl_tree_t domain_tree;
1585 static boolean_t fuid_table_loaded;
1586 static boolean_t sa_loaded;
1587 sa_attr_type_t *sa_attr_table;
1590 fuid_table_destroy()
1592 if (fuid_table_loaded) {
1593 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1594 fuid_table_loaded = B_FALSE;
1599 * print uid or gid information.
1600 * For normal POSIX id just the id is printed in decimal format.
1601 * For CIFS files with FUID the fuid is printed in hex followed by
1602 * the domain-rid string.
1605 print_idstr(uint64_t id, const char *id_type)
1607 if (FUID_INDEX(id)) {
1610 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1611 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1612 (u_longlong_t)id, domain, (int)FUID_RID(id));
1614 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1620 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1622 uint32_t uid_idx, gid_idx;
1624 uid_idx = FUID_INDEX(uid);
1625 gid_idx = FUID_INDEX(gid);
1627 /* Load domain table, if not already loaded */
1628 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1631 /* first find the fuid object. It lives in the master node */
1632 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1633 8, 1, &fuid_obj) == 0);
1634 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1635 (void) zfs_fuid_table_load(os, fuid_obj,
1636 &idx_tree, &domain_tree);
1637 fuid_table_loaded = B_TRUE;
1640 print_idstr(uid, "uid");
1641 print_idstr(gid, "gid");
1646 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1648 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1650 uint64_t xattr, rdev, gen;
1651 uint64_t uid, gid, mode, fsize, parent, links;
1653 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1654 time_t z_crtime, z_atime, z_mtime, z_ctime;
1655 sa_bulk_attr_t bulk[12];
1660 uint64_t sa_attrs = 0;
1663 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1664 8, 1, &version) == 0);
1665 if (version >= ZPL_VERSION_SA) {
1666 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1667 8, 1, &sa_attrs) == 0);
1669 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1670 ZPL_END, &sa_attr_table)) != 0) {
1671 (void) printf("sa_setup failed errno %d, can't "
1672 "display znode contents\n", error);
1678 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1679 (void) printf("Failed to get handle for SA znode\n");
1683 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1684 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1685 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1687 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1688 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1690 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1692 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1694 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1696 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1698 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1700 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1702 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1705 if (sa_bulk_lookup(hdl, bulk, idx)) {
1706 (void) sa_handle_destroy(hdl);
1710 error = zfs_obj_to_path(os, object, path, sizeof (path));
1712 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1713 (u_longlong_t)object);
1715 if (dump_opt['d'] < 3) {
1716 (void) printf("\t%s\n", path);
1717 (void) sa_handle_destroy(hdl);
1721 z_crtime = (time_t)crtm[0];
1722 z_atime = (time_t)acctm[0];
1723 z_mtime = (time_t)modtm[0];
1724 z_ctime = (time_t)chgtm[0];
1726 (void) printf("\tpath %s\n", path);
1727 dump_uidgid(os, uid, gid);
1728 (void) printf("\tatime %s", ctime(&z_atime));
1729 (void) printf("\tmtime %s", ctime(&z_mtime));
1730 (void) printf("\tctime %s", ctime(&z_ctime));
1731 (void) printf("\tcrtime %s", ctime(&z_crtime));
1732 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1733 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1734 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1735 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1736 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1737 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1738 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1739 sizeof (uint64_t)) == 0)
1740 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1741 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1742 sizeof (uint64_t)) == 0)
1743 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1744 sa_handle_destroy(hdl);
1749 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1755 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1759 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1760 dump_none, /* unallocated */
1761 dump_zap, /* object directory */
1762 dump_uint64, /* object array */
1763 dump_none, /* packed nvlist */
1764 dump_packed_nvlist, /* packed nvlist size */
1765 dump_none, /* bpobj */
1766 dump_bpobj, /* bpobj header */
1767 dump_none, /* SPA space map header */
1768 dump_none, /* SPA space map */
1769 dump_none, /* ZIL intent log */
1770 dump_dnode, /* DMU dnode */
1771 dump_dmu_objset, /* DMU objset */
1772 dump_dsl_dir, /* DSL directory */
1773 dump_zap, /* DSL directory child map */
1774 dump_zap, /* DSL dataset snap map */
1775 dump_zap, /* DSL props */
1776 dump_dsl_dataset, /* DSL dataset */
1777 dump_znode, /* ZFS znode */
1778 dump_acl, /* ZFS V0 ACL */
1779 dump_uint8, /* ZFS plain file */
1780 dump_zpldir, /* ZFS directory */
1781 dump_zap, /* ZFS master node */
1782 dump_zap, /* ZFS delete queue */
1783 dump_uint8, /* zvol object */
1784 dump_zap, /* zvol prop */
1785 dump_uint8, /* other uint8[] */
1786 dump_uint64, /* other uint64[] */
1787 dump_zap, /* other ZAP */
1788 dump_zap, /* persistent error log */
1789 dump_uint8, /* SPA history */
1790 dump_history_offsets, /* SPA history offsets */
1791 dump_zap, /* Pool properties */
1792 dump_zap, /* DSL permissions */
1793 dump_acl, /* ZFS ACL */
1794 dump_uint8, /* ZFS SYSACL */
1795 dump_none, /* FUID nvlist */
1796 dump_packed_nvlist, /* FUID nvlist size */
1797 dump_zap, /* DSL dataset next clones */
1798 dump_zap, /* DSL scrub queue */
1799 dump_zap, /* ZFS user/group used */
1800 dump_zap, /* ZFS user/group quota */
1801 dump_zap, /* snapshot refcount tags */
1802 dump_ddt_zap, /* DDT ZAP object */
1803 dump_zap, /* DDT statistics */
1804 dump_znode, /* SA object */
1805 dump_zap, /* SA Master Node */
1806 dump_sa_attrs, /* SA attribute registration */
1807 dump_sa_layouts, /* SA attribute layouts */
1808 dump_zap, /* DSL scrub translations */
1809 dump_none, /* fake dedup BP */
1810 dump_zap, /* deadlist */
1811 dump_none, /* deadlist hdr */
1812 dump_zap, /* dsl clones */
1813 dump_bpobj_subobjs, /* bpobj subobjs */
1814 dump_unknown, /* Unknown type, must be last */
1818 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1820 dmu_buf_t *db = NULL;
1821 dmu_object_info_t doi;
1825 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1826 char bonus_size[32];
1830 if (*print_header) {
1831 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1832 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1838 dn = DMU_META_DNODE(os);
1840 error = dmu_bonus_hold(os, object, FTAG, &db);
1842 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1844 bonus = db->db_data;
1845 bsize = db->db_size;
1846 dn = DB_DNODE((dmu_buf_impl_t *)db);
1848 dmu_object_info_from_dnode(dn, &doi);
1850 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1851 zdb_nicenum(doi.doi_data_block_size, dblk);
1852 zdb_nicenum(doi.doi_max_offset, lsize);
1853 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1854 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1855 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1856 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1857 doi.doi_max_offset);
1861 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1862 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1863 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1866 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1867 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1868 ZDB_COMPRESS_NAME(doi.doi_compress));
1871 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1872 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1873 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1875 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1876 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1877 "", "", "", "", "", bonus_size, "bonus",
1878 ZDB_OT_NAME(doi.doi_bonus_type));
1881 if (verbosity >= 4) {
1882 (void) printf("\tdnode flags: %s%s%s\n",
1883 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1885 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1886 "USERUSED_ACCOUNTED " : "",
1887 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1888 "SPILL_BLKPTR" : "");
1889 (void) printf("\tdnode maxblkid: %llu\n",
1890 (longlong_t)dn->dn_phys->dn_maxblkid);
1892 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1894 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1901 if (verbosity >= 5) {
1903 * Report the list of segments that comprise the object.
1907 uint64_t blkfill = 1;
1910 if (dn->dn_type == DMU_OT_DNODE) {
1912 blkfill = DNODES_PER_BLOCK;
1917 error = dnode_next_offset(dn,
1918 0, &start, minlvl, blkfill, 0);
1922 error = dnode_next_offset(dn,
1923 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1924 zdb_nicenum(end - start, segsize);
1925 (void) printf("\t\tsegment [%016llx, %016llx)"
1926 " size %5s\n", (u_longlong_t)start,
1927 (u_longlong_t)end, segsize);
1935 dmu_buf_rele(db, FTAG);
1938 static char *objset_types[DMU_OST_NUMTYPES] = {
1939 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1942 dump_dir(objset_t *os)
1944 dmu_objset_stats_t dds;
1945 uint64_t object, object_count;
1946 uint64_t refdbytes, usedobjs, scratch;
1948 char blkbuf[BP_SPRINTF_LEN + 20];
1949 char osname[MAXNAMELEN];
1950 char *type = "UNKNOWN";
1951 int verbosity = dump_opt['d'];
1952 int print_header = 1;
1955 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1956 dmu_objset_fast_stat(os, &dds);
1957 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1959 if (dds.dds_type < DMU_OST_NUMTYPES)
1960 type = objset_types[dds.dds_type];
1962 if (dds.dds_type == DMU_OST_META) {
1963 dds.dds_creation_txg = TXG_INITIAL;
1964 usedobjs = BP_GET_FILL(os->os_rootbp);
1965 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
1968 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1971 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1973 zdb_nicenum(refdbytes, numbuf);
1975 if (verbosity >= 4) {
1976 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
1977 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
1978 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
1983 dmu_objset_name(os, osname);
1985 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1986 "%s, %llu objects%s\n",
1987 osname, type, (u_longlong_t)dmu_objset_id(os),
1988 (u_longlong_t)dds.dds_creation_txg,
1989 numbuf, (u_longlong_t)usedobjs, blkbuf);
1991 if (zopt_objects != 0) {
1992 for (i = 0; i < zopt_objects; i++)
1993 dump_object(os, zopt_object[i], verbosity,
1995 (void) printf("\n");
1999 if (dump_opt['i'] != 0 || verbosity >= 2)
2000 dump_intent_log(dmu_objset_zil(os));
2002 if (dmu_objset_ds(os) != NULL)
2003 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
2008 if (BP_IS_HOLE(os->os_rootbp))
2011 dump_object(os, 0, verbosity, &print_header);
2013 if (DMU_USERUSED_DNODE(os) != NULL &&
2014 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2015 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2016 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2020 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2021 dump_object(os, object, verbosity, &print_header);
2025 ASSERT3U(object_count, ==, usedobjs);
2027 (void) printf("\n");
2029 if (error != ESRCH) {
2030 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2036 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2038 time_t timestamp = ub->ub_timestamp;
2040 (void) printf(header ? header : "");
2041 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2042 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2043 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2044 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2045 (void) printf("\ttimestamp = %llu UTC = %s",
2046 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp)));
2047 if (dump_opt['u'] >= 3) {
2048 char blkbuf[BP_SPRINTF_LEN];
2049 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2050 (void) printf("\trootbp = %s\n", blkbuf);
2052 (void) printf(footer ? footer : "");
2056 dump_config(spa_t *spa)
2063 error = dmu_bonus_hold(spa->spa_meta_objset,
2064 spa->spa_config_object, FTAG, &db);
2067 nvsize = *(uint64_t *)db->db_data;
2068 dmu_buf_rele(db, FTAG);
2070 (void) printf("\nMOS Configuration:\n");
2071 dump_packed_nvlist(spa->spa_meta_objset,
2072 spa->spa_config_object, (void *)&nvsize, 1);
2074 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2075 (u_longlong_t)spa->spa_config_object, error);
2080 dump_cachefile(const char *cachefile)
2083 struct stat64 statbuf;
2087 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2088 (void) printf("cannot open '%s': %s\n", cachefile,
2093 if (fstat64(fd, &statbuf) != 0) {
2094 (void) printf("failed to stat '%s': %s\n", cachefile,
2099 if ((buf = malloc(statbuf.st_size)) == NULL) {
2100 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2101 (u_longlong_t)statbuf.st_size);
2105 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2106 (void) fprintf(stderr, "failed to read %llu bytes\n",
2107 (u_longlong_t)statbuf.st_size);
2113 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2114 (void) fprintf(stderr, "failed to unpack nvlist\n");
2120 dump_nvlist(config, 0);
2122 nvlist_free(config);
2125 #define ZDB_MAX_UB_HEADER_SIZE 32
2128 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2132 char header[ZDB_MAX_UB_HEADER_SIZE];
2134 vd.vdev_ashift = ashift;
2135 vdp->vdev_top = vdp;
2137 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2138 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2139 uberblock_t *ub = (void *)((char *)lbl + uoff);
2141 if (uberblock_verify(ub))
2143 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2144 "Uberblock[%d]\n", i);
2145 dump_uberblock(ub, header, "");
2150 dump_label(const char *dev)
2154 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
2155 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2156 struct stat64 statbuf;
2157 uint64_t psize, ashift;
2158 int len = strlen(dev) + 1;
2160 if (strncmp(dev, ZFS_DISK_ROOTD, strlen(ZFS_DISK_ROOTD)) == 0) {
2163 (void) snprintf(path, len, "%s%s", ZFS_RDISK_ROOTD,
2164 dev + strlen(ZFS_DISK_ROOTD));
2169 if ((fd = open64(path, O_RDONLY)) < 0) {
2170 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2175 if (fstat64(fd, &statbuf) != 0) {
2176 (void) printf("failed to stat '%s': %s\n", path,
2183 if (S_ISBLK(statbuf.st_mode)) {
2184 (void) printf("cannot use '%s': character device required\n",
2191 psize = statbuf.st_size;
2192 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2194 for (int l = 0; l < VDEV_LABELS; l++) {
2195 nvlist_t *config = NULL;
2197 (void) printf("--------------------------------------------\n");
2198 (void) printf("LABEL %d\n", l);
2199 (void) printf("--------------------------------------------\n");
2201 if (pread64(fd, &label, sizeof (label),
2202 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2203 (void) printf("failed to read label %d\n", l);
2207 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2208 (void) printf("failed to unpack label %d\n", l);
2209 ashift = SPA_MINBLOCKSHIFT;
2211 nvlist_t *vdev_tree = NULL;
2213 dump_nvlist(config, 4);
2214 if ((nvlist_lookup_nvlist(config,
2215 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2216 (nvlist_lookup_uint64(vdev_tree,
2217 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2218 ashift = SPA_MINBLOCKSHIFT;
2219 nvlist_free(config);
2222 dump_label_uberblocks(&label, ashift);
2229 static uint64_t dataset_feature_count[SPA_FEATURES];
2233 dump_one_dir(const char *dsname, void *arg)
2238 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2240 (void) printf("Could not open %s, error %d\n", dsname, error);
2244 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2245 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2247 ASSERT(spa_feature_table[f].fi_flags &
2248 ZFEATURE_FLAG_PER_DATASET);
2249 dataset_feature_count[f]++;
2253 dmu_objset_disown(os, FTAG);
2254 fuid_table_destroy();
2255 sa_loaded = B_FALSE;
2262 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2263 typedef struct zdb_blkstats {
2269 uint64_t zb_ditto_samevdev;
2270 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2274 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2276 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2277 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2278 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2279 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2281 static char *zdb_ot_extname[] = {
2288 #define ZB_TOTAL DN_MAX_LEVELS
2290 typedef struct zdb_cb {
2291 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2292 uint64_t zcb_dedup_asize;
2293 uint64_t zcb_dedup_blocks;
2294 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2295 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2298 uint64_t zcb_lastprint;
2299 uint64_t zcb_totalasize;
2300 uint64_t zcb_errors[256];
2307 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2308 dmu_object_type_t type)
2310 uint64_t refcnt = 0;
2312 ASSERT(type < ZDB_OT_TOTAL);
2314 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2317 for (int i = 0; i < 4; i++) {
2318 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2319 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2321 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2323 zb->zb_asize += BP_GET_ASIZE(bp);
2324 zb->zb_lsize += BP_GET_LSIZE(bp);
2325 zb->zb_psize += BP_GET_PSIZE(bp);
2329 * The histogram is only big enough to record blocks up to
2330 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2333 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2334 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2335 zb->zb_psize_histogram[idx]++;
2337 zb->zb_gangs += BP_COUNT_GANG(bp);
2339 switch (BP_GET_NDVAS(bp)) {
2341 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2342 DVA_GET_VDEV(&bp->blk_dva[1]))
2343 zb->zb_ditto_samevdev++;
2346 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2347 DVA_GET_VDEV(&bp->blk_dva[1])) +
2348 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2349 DVA_GET_VDEV(&bp->blk_dva[2])) +
2350 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2351 DVA_GET_VDEV(&bp->blk_dva[2]));
2353 zb->zb_ditto_samevdev++;
2359 if (BP_IS_EMBEDDED(bp)) {
2360 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2361 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2362 [BPE_GET_PSIZE(bp)]++;
2369 if (BP_GET_DEDUP(bp)) {
2373 ddt = ddt_select(zcb->zcb_spa, bp);
2375 dde = ddt_lookup(ddt, bp, B_FALSE);
2380 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2381 ddt_phys_decref(ddp);
2382 refcnt = ddp->ddp_refcnt;
2383 if (ddt_phys_total_refcnt(dde) == 0)
2384 ddt_remove(ddt, dde);
2389 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2390 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2391 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2396 zdb_blkptr_done(zio_t *zio)
2398 spa_t *spa = zio->io_spa;
2399 blkptr_t *bp = zio->io_bp;
2400 int ioerr = zio->io_error;
2401 zdb_cb_t *zcb = zio->io_private;
2402 zbookmark_phys_t *zb = &zio->io_bookmark;
2404 zio_data_buf_free(zio->io_data, zio->io_size);
2406 mutex_enter(&spa->spa_scrub_lock);
2407 spa->spa_scrub_inflight--;
2408 cv_broadcast(&spa->spa_scrub_io_cv);
2410 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2411 char blkbuf[BP_SPRINTF_LEN];
2413 zcb->zcb_haderrors = 1;
2414 zcb->zcb_errors[ioerr]++;
2416 if (dump_opt['b'] >= 2)
2417 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2421 (void) printf("zdb_blkptr_cb: "
2422 "Got error %d reading "
2423 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2425 (u_longlong_t)zb->zb_objset,
2426 (u_longlong_t)zb->zb_object,
2427 (u_longlong_t)zb->zb_level,
2428 (u_longlong_t)zb->zb_blkid,
2431 mutex_exit(&spa->spa_scrub_lock);
2436 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2437 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2439 zdb_cb_t *zcb = arg;
2440 dmu_object_type_t type;
2441 boolean_t is_metadata;
2446 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2447 char blkbuf[BP_SPRINTF_LEN];
2448 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2449 (void) printf("objset %llu object %llu "
2450 "level %lld offset 0x%llx %s\n",
2451 (u_longlong_t)zb->zb_objset,
2452 (u_longlong_t)zb->zb_object,
2453 (longlong_t)zb->zb_level,
2454 (u_longlong_t)blkid2offset(dnp, bp, zb),
2461 type = BP_GET_TYPE(bp);
2463 zdb_count_block(zcb, zilog, bp,
2464 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2466 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2468 if (!BP_IS_EMBEDDED(bp) &&
2469 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2470 size_t size = BP_GET_PSIZE(bp);
2471 void *data = zio_data_buf_alloc(size);
2472 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2474 /* If it's an intent log block, failure is expected. */
2475 if (zb->zb_level == ZB_ZIL_LEVEL)
2476 flags |= ZIO_FLAG_SPECULATIVE;
2478 mutex_enter(&spa->spa_scrub_lock);
2479 while (spa->spa_scrub_inflight > max_inflight)
2480 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2481 spa->spa_scrub_inflight++;
2482 mutex_exit(&spa->spa_scrub_lock);
2484 zio_nowait(zio_read(NULL, spa, bp, data, size,
2485 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2488 zcb->zcb_readfails = 0;
2490 /* only call gethrtime() every 100 blocks */
2497 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2498 uint64_t now = gethrtime();
2500 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2502 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2504 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2506 zfs_nicenum(bytes, buf, sizeof (buf));
2507 (void) fprintf(stderr,
2508 "\r%5s completed (%4dMB/s) "
2509 "estimated time remaining: %uhr %02umin %02usec ",
2510 buf, kb_per_sec / 1024,
2511 sec_remaining / 60 / 60,
2512 sec_remaining / 60 % 60,
2513 sec_remaining % 60);
2515 zcb->zcb_lastprint = now;
2522 zdb_leak(void *arg, uint64_t start, uint64_t size)
2526 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2527 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2530 static metaslab_ops_t zdb_metaslab_ops = {
2535 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2537 ddt_bookmark_t ddb = { 0 };
2541 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2543 ddt_phys_t *ddp = dde.dde_phys;
2545 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2548 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2550 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2551 if (ddp->ddp_phys_birth == 0)
2553 ddt_bp_create(ddb.ddb_checksum,
2554 &dde.dde_key, ddp, &blk);
2555 if (p == DDT_PHYS_DITTO) {
2556 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2558 zcb->zcb_dedup_asize +=
2559 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2560 zcb->zcb_dedup_blocks++;
2563 if (!dump_opt['L']) {
2564 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2566 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2571 ASSERT(error == ENOENT);
2575 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2579 if (!dump_opt['L']) {
2580 vdev_t *rvd = spa->spa_root_vdev;
2581 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
2582 vdev_t *vd = rvd->vdev_child[c];
2583 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
2584 metaslab_t *msp = vd->vdev_ms[m];
2585 mutex_enter(&msp->ms_lock);
2586 metaslab_unload(msp);
2589 * For leak detection, we overload the metaslab
2590 * ms_tree to contain allocated segments
2591 * instead of free segments. As a result,
2592 * we can't use the normal metaslab_load/unload
2595 if (msp->ms_sm != NULL) {
2596 (void) fprintf(stderr,
2597 "\rloading space map for "
2598 "vdev %llu of %llu, "
2599 "metaslab %llu of %llu ...",
2601 (longlong_t)rvd->vdev_children,
2603 (longlong_t)vd->vdev_ms_count);
2605 msp->ms_ops = &zdb_metaslab_ops;
2608 * We don't want to spend the CPU
2609 * manipulating the size-ordered
2610 * tree, so clear the range_tree
2613 msp->ms_tree->rt_ops = NULL;
2614 VERIFY0(space_map_load(msp->ms_sm,
2615 msp->ms_tree, SM_ALLOC));
2616 msp->ms_loaded = B_TRUE;
2618 mutex_exit(&msp->ms_lock);
2621 (void) fprintf(stderr, "\n");
2624 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2626 zdb_ddt_leak_init(spa, zcb);
2628 spa_config_exit(spa, SCL_CONFIG, FTAG);
2632 zdb_leak_fini(spa_t *spa)
2634 if (!dump_opt['L']) {
2635 vdev_t *rvd = spa->spa_root_vdev;
2636 for (int c = 0; c < rvd->vdev_children; c++) {
2637 vdev_t *vd = rvd->vdev_child[c];
2638 for (int m = 0; m < vd->vdev_ms_count; m++) {
2639 metaslab_t *msp = vd->vdev_ms[m];
2640 mutex_enter(&msp->ms_lock);
2643 * The ms_tree has been overloaded to
2644 * contain allocated segments. Now that we
2645 * finished traversing all blocks, any
2646 * block that remains in the ms_tree
2647 * represents an allocated block that we
2648 * did not claim during the traversal.
2649 * Claimed blocks would have been removed
2652 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2653 msp->ms_loaded = B_FALSE;
2655 mutex_exit(&msp->ms_lock);
2663 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2665 zdb_cb_t *zcb = arg;
2667 if (dump_opt['b'] >= 5) {
2668 char blkbuf[BP_SPRINTF_LEN];
2669 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2670 (void) printf("[%s] %s\n",
2671 "deferred free", blkbuf);
2673 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2678 dump_block_stats(spa_t *spa)
2680 zdb_cb_t zcb = { 0 };
2681 zdb_blkstats_t *zb, *tzb;
2682 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2683 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2684 boolean_t leaks = B_FALSE;
2686 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2687 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2688 (dump_opt['c'] == 1) ? "metadata " : "",
2689 dump_opt['c'] ? "checksums " : "",
2690 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2691 !dump_opt['L'] ? "nothing leaked " : "");
2694 * Load all space maps as SM_ALLOC maps, then traverse the pool
2695 * claiming each block we discover. If the pool is perfectly
2696 * consistent, the space maps will be empty when we're done.
2697 * Anything left over is a leak; any block we can't claim (because
2698 * it's not part of any space map) is a double allocation,
2699 * reference to a freed block, or an unclaimed log block.
2701 zdb_leak_init(spa, &zcb);
2704 * If there's a deferred-free bplist, process that first.
2706 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2707 count_block_cb, &zcb, NULL);
2708 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2709 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2710 count_block_cb, &zcb, NULL);
2712 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2713 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2714 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2718 if (dump_opt['c'] > 1)
2719 flags |= TRAVERSE_PREFETCH_DATA;
2721 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2722 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2723 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2726 * If we've traversed the data blocks then we need to wait for those
2727 * I/Os to complete. We leverage "The Godfather" zio to wait on
2728 * all async I/Os to complete.
2730 if (dump_opt['c']) {
2731 for (int i = 0; i < max_ncpus; i++) {
2732 (void) zio_wait(spa->spa_async_zio_root[i]);
2733 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
2734 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2735 ZIO_FLAG_GODFATHER);
2739 if (zcb.zcb_haderrors) {
2740 (void) printf("\nError counts:\n\n");
2741 (void) printf("\t%5s %s\n", "errno", "count");
2742 for (int e = 0; e < 256; e++) {
2743 if (zcb.zcb_errors[e] != 0) {
2744 (void) printf("\t%5d %llu\n",
2745 e, (u_longlong_t)zcb.zcb_errors[e]);
2751 * Report any leaked segments.
2755 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2757 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2758 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2760 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2761 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2763 if (total_found == total_alloc) {
2765 (void) printf("\n\tNo leaks (block sum matches space"
2766 " maps exactly)\n");
2768 (void) printf("block traversal size %llu != alloc %llu "
2770 (u_longlong_t)total_found,
2771 (u_longlong_t)total_alloc,
2772 (dump_opt['L']) ? "unreachable" : "leaked",
2773 (longlong_t)(total_alloc - total_found));
2777 if (tzb->zb_count == 0)
2780 (void) printf("\n");
2781 (void) printf("\tbp count: %10llu\n",
2782 (u_longlong_t)tzb->zb_count);
2783 (void) printf("\tganged count: %10llu\n",
2784 (longlong_t)tzb->zb_gangs);
2785 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2786 (u_longlong_t)tzb->zb_lsize,
2787 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2788 (void) printf("\tbp physical: %10llu avg:"
2789 " %6llu compression: %6.2f\n",
2790 (u_longlong_t)tzb->zb_psize,
2791 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2792 (double)tzb->zb_lsize / tzb->zb_psize);
2793 (void) printf("\tbp allocated: %10llu avg:"
2794 " %6llu compression: %6.2f\n",
2795 (u_longlong_t)tzb->zb_asize,
2796 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2797 (double)tzb->zb_lsize / tzb->zb_asize);
2798 (void) printf("\tbp deduped: %10llu ref>1:"
2799 " %6llu deduplication: %6.2f\n",
2800 (u_longlong_t)zcb.zcb_dedup_asize,
2801 (u_longlong_t)zcb.zcb_dedup_blocks,
2802 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2803 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2804 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2806 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2807 if (zcb.zcb_embedded_blocks[i] == 0)
2809 (void) printf("\n");
2810 (void) printf("\tadditional, non-pointer bps of type %u: "
2812 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2814 if (dump_opt['b'] >= 3) {
2815 (void) printf("\t number of (compressed) bytes: "
2817 dump_histogram(zcb.zcb_embedded_histogram[i],
2818 sizeof (zcb.zcb_embedded_histogram[i]) /
2819 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2823 if (tzb->zb_ditto_samevdev != 0) {
2824 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2825 (longlong_t)tzb->zb_ditto_samevdev);
2828 if (dump_opt['b'] >= 2) {
2830 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2831 "\t avg\t comp\t%%Total\tType\n");
2833 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2834 char csize[32], lsize[32], psize[32], asize[32];
2835 char avg[32], gang[32];
2838 if (t < DMU_OT_NUMTYPES)
2839 typename = dmu_ot[t].ot_name;
2841 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2843 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2844 (void) printf("%6s\t%5s\t%5s\t%5s"
2845 "\t%5s\t%5s\t%6s\t%s\n",
2857 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2858 level = (l == -1 ? ZB_TOTAL : l);
2859 zb = &zcb.zcb_type[level][t];
2861 if (zb->zb_asize == 0)
2864 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2867 if (level == 0 && zb->zb_asize ==
2868 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2871 zdb_nicenum(zb->zb_count, csize);
2872 zdb_nicenum(zb->zb_lsize, lsize);
2873 zdb_nicenum(zb->zb_psize, psize);
2874 zdb_nicenum(zb->zb_asize, asize);
2875 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2876 zdb_nicenum(zb->zb_gangs, gang);
2878 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2880 csize, lsize, psize, asize, avg,
2881 (double)zb->zb_lsize / zb->zb_psize,
2882 100.0 * zb->zb_asize / tzb->zb_asize);
2884 if (level == ZB_TOTAL)
2885 (void) printf("%s\n", typename);
2887 (void) printf(" L%d %s\n",
2890 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
2891 (void) printf("\t number of ganged "
2892 "blocks: %s\n", gang);
2895 if (dump_opt['b'] >= 4) {
2896 (void) printf("psize "
2897 "(in 512-byte sectors): "
2898 "number of blocks\n");
2899 dump_histogram(zb->zb_psize_histogram,
2900 PSIZE_HISTO_SIZE, 0);
2906 (void) printf("\n");
2911 if (zcb.zcb_haderrors)
2917 typedef struct zdb_ddt_entry {
2919 uint64_t zdde_ref_blocks;
2920 uint64_t zdde_ref_lsize;
2921 uint64_t zdde_ref_psize;
2922 uint64_t zdde_ref_dsize;
2923 avl_node_t zdde_node;
2928 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2929 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2931 avl_tree_t *t = arg;
2933 zdb_ddt_entry_t *zdde, zdde_search;
2935 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
2938 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2939 (void) printf("traversing objset %llu, %llu objects, "
2940 "%lu blocks so far\n",
2941 (u_longlong_t)zb->zb_objset,
2942 (u_longlong_t)BP_GET_FILL(bp),
2946 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2947 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2950 ddt_key_fill(&zdde_search.zdde_key, bp);
2952 zdde = avl_find(t, &zdde_search, &where);
2955 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2956 zdde->zdde_key = zdde_search.zdde_key;
2957 avl_insert(t, zdde, where);
2960 zdde->zdde_ref_blocks += 1;
2961 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2962 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2963 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2969 dump_simulated_ddt(spa_t *spa)
2972 void *cookie = NULL;
2973 zdb_ddt_entry_t *zdde;
2974 ddt_histogram_t ddh_total = { 0 };
2975 ddt_stat_t dds_total = { 0 };
2977 avl_create(&t, ddt_entry_compare,
2978 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2980 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2982 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2983 zdb_ddt_add_cb, &t);
2985 spa_config_exit(spa, SCL_CONFIG, FTAG);
2987 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2989 uint64_t refcnt = zdde->zdde_ref_blocks;
2990 ASSERT(refcnt != 0);
2992 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2993 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2994 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2995 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2997 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2998 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2999 dds.dds_ref_psize = zdde->zdde_ref_psize;
3000 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3002 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3005 umem_free(zdde, sizeof (*zdde));
3010 ddt_histogram_stat(&dds_total, &ddh_total);
3012 (void) printf("Simulated DDT histogram:\n");
3014 zpool_dump_ddt(&dds_total, &ddh_total);
3016 dump_dedup_ratio(&dds_total);
3020 dump_zpool(spa_t *spa)
3022 dsl_pool_t *dp = spa_get_dsl(spa);
3025 if (dump_opt['S']) {
3026 dump_simulated_ddt(spa);
3030 if (!dump_opt['e'] && dump_opt['C'] > 1) {
3031 (void) printf("\nCached configuration:\n");
3032 dump_nvlist(spa->spa_config, 8);
3039 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3044 if (dump_opt['d'] > 2 || dump_opt['m'])
3045 dump_metaslabs(spa);
3047 dump_metaslab_groups(spa);
3049 if (dump_opt['d'] || dump_opt['i']) {
3050 dump_dir(dp->dp_meta_objset);
3051 if (dump_opt['d'] >= 3) {
3052 dump_full_bpobj(&spa->spa_deferred_bpobj,
3053 "Deferred frees", 0);
3054 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3056 &spa->spa_dsl_pool->dp_free_bpobj,
3057 "Pool snapshot frees", 0);
3060 if (spa_feature_is_active(spa,
3061 SPA_FEATURE_ASYNC_DESTROY)) {
3062 dump_bptree(spa->spa_meta_objset,
3063 spa->spa_dsl_pool->dp_bptree_obj,
3064 "Pool dataset frees");
3066 dump_dtl(spa->spa_root_vdev, 0);
3068 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3069 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3071 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
3074 if (!(spa_feature_table[f].fi_flags &
3075 ZFEATURE_FLAG_PER_DATASET)) {
3076 ASSERT0(dataset_feature_count[f]);
3079 (void) feature_get_refcount(spa,
3080 &spa_feature_table[f], &refcount);
3081 if (dataset_feature_count[f] != refcount) {
3082 (void) printf("%s feature refcount mismatch: "
3083 "%lld datasets != %lld refcount\n",
3084 spa_feature_table[f].fi_uname,
3085 (longlong_t)dataset_feature_count[f],
3086 (longlong_t)refcount);
3089 (void) printf("Verified %s feature refcount "
3090 "of %llu is correct\n",
3091 spa_feature_table[f].fi_uname,
3092 (longlong_t)refcount);
3096 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3097 rc = dump_block_stats(spa);
3100 rc = verify_spacemap_refcounts(spa);
3103 show_pool_stats(spa);
3112 #define ZDB_FLAG_CHECKSUM 0x0001
3113 #define ZDB_FLAG_DECOMPRESS 0x0002
3114 #define ZDB_FLAG_BSWAP 0x0004
3115 #define ZDB_FLAG_GBH 0x0008
3116 #define ZDB_FLAG_INDIRECT 0x0010
3117 #define ZDB_FLAG_PHYS 0x0020
3118 #define ZDB_FLAG_RAW 0x0040
3119 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3124 zdb_print_blkptr(blkptr_t *bp, int flags)
3126 char blkbuf[BP_SPRINTF_LEN];
3128 if (flags & ZDB_FLAG_BSWAP)
3129 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3131 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3132 (void) printf("%s\n", blkbuf);
3136 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3140 for (i = 0; i < nbps; i++)
3141 zdb_print_blkptr(&bp[i], flags);
3145 zdb_dump_gbh(void *buf, int flags)
3147 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3151 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3153 if (flags & ZDB_FLAG_BSWAP)
3154 byteswap_uint64_array(buf, size);
3155 (void) write(1, buf, size);
3159 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3161 uint64_t *d = (uint64_t *)buf;
3162 int nwords = size / sizeof (uint64_t);
3163 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3169 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3171 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3173 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3175 for (i = 0; i < nwords; i += 2) {
3176 (void) printf("%06llx: %016llx %016llx ",
3177 (u_longlong_t)(i * sizeof (uint64_t)),
3178 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3179 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3182 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3183 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3184 (void) printf("\n");
3189 * There are two acceptable formats:
3190 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3191 * child[.child]* - For example: 0.1.1
3193 * The second form can be used to specify arbitrary vdevs anywhere
3194 * in the heirarchy. For example, in a pool with a mirror of
3195 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3198 zdb_vdev_lookup(vdev_t *vdev, char *path)
3206 /* First, assume the x.x.x.x format */
3207 i = (int)strtoul(path, &s, 10);
3208 if (s == path || (s && *s != '.' && *s != '\0'))
3210 if (i < 0 || i >= vdev->vdev_children)
3213 vdev = vdev->vdev_child[i];
3216 return (zdb_vdev_lookup(vdev, s+1));
3219 for (i = 0; i < vdev->vdev_children; i++) {
3220 vdev_t *vc = vdev->vdev_child[i];
3222 if (vc->vdev_path == NULL) {
3223 vc = zdb_vdev_lookup(vc, path);
3230 p = strrchr(vc->vdev_path, '/');
3231 p = p ? p + 1 : vc->vdev_path;
3232 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3234 if (strcmp(vc->vdev_path, path) == 0)
3236 if (strcmp(p, path) == 0)
3238 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3246 * Read a block from a pool and print it out. The syntax of the
3247 * block descriptor is:
3249 * pool:vdev_specifier:offset:size[:flags]
3251 * pool - The name of the pool you wish to read from
3252 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3253 * offset - offset, in hex, in bytes
3254 * size - Amount of data to read, in hex, in bytes
3255 * flags - A string of characters specifying options
3256 * b: Decode a blkptr at given offset within block
3257 * *c: Calculate and display checksums
3258 * d: Decompress data before dumping
3259 * e: Byteswap data before dumping
3260 * g: Display data as a gang block header
3261 * i: Display as an indirect block
3262 * p: Do I/O to physical offset
3263 * r: Dump raw data to stdout
3265 * * = not yet implemented
3268 zdb_read_block(char *thing, spa_t *spa)
3270 blkptr_t blk, *bp = &blk;
3271 dva_t *dva = bp->blk_dva;
3273 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3276 void *pbuf, *lbuf, *buf;
3277 char *s, *p, *dup, *vdev, *flagstr;
3280 dup = strdup(thing);
3281 s = strtok(dup, ":");
3283 s = strtok(NULL, ":");
3284 offset = strtoull(s ? s : "", NULL, 16);
3285 s = strtok(NULL, ":");
3286 size = strtoull(s ? s : "", NULL, 16);
3287 s = strtok(NULL, ":");
3288 flagstr = s ? s : "";
3292 s = "size must not be zero";
3293 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3294 s = "size must be a multiple of sector size";
3295 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3296 s = "offset must be a multiple of sector size";
3298 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3303 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3304 for (i = 0; flagstr[i]; i++) {
3305 int bit = flagbits[(uchar_t)flagstr[i]];
3308 (void) printf("***Invalid flag: %c\n",
3314 /* If it's not something with an argument, keep going */
3315 if ((bit & (ZDB_FLAG_CHECKSUM |
3316 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3319 p = &flagstr[i + 1];
3320 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3321 blkptr_offset = strtoull(p, &p, 16);
3322 if (*p != ':' && *p != '\0') {
3323 (void) printf("***Invalid flag arg: '%s'\n", s);
3327 i += p - &flagstr[i + 1]; /* skip over the number */
3331 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3333 (void) printf("***Invalid vdev: %s\n", vdev);
3338 (void) fprintf(stderr, "Found vdev: %s\n",
3341 (void) fprintf(stderr, "Found vdev type: %s\n",
3342 vd->vdev_ops->vdev_op_type);
3348 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3349 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3353 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3354 DVA_SET_OFFSET(&dva[0], offset);
3355 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3356 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3358 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3360 BP_SET_LSIZE(bp, lsize);
3361 BP_SET_PSIZE(bp, psize);
3362 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3363 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3364 BP_SET_TYPE(bp, DMU_OT_NONE);
3365 BP_SET_LEVEL(bp, 0);
3366 BP_SET_DEDUP(bp, 0);
3367 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3369 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3370 zio = zio_root(spa, NULL, NULL, 0);
3372 if (vd == vd->vdev_top) {
3374 * Treat this as a normal block read.
3376 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3377 ZIO_PRIORITY_SYNC_READ,
3378 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3381 * Treat this as a vdev child I/O.
3383 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3384 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3385 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3386 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3387 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3390 error = zio_wait(zio);
3391 spa_config_exit(spa, SCL_STATE, FTAG);
3394 (void) printf("Read of %s failed, error: %d\n", thing, error);
3398 if (flags & ZDB_FLAG_DECOMPRESS) {
3400 * We don't know how the data was compressed, so just try
3401 * every decompress function at every inflated blocksize.
3403 enum zio_compress c;
3404 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3405 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3407 bcopy(pbuf, pbuf2, psize);
3409 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3410 SPA_MAXBLOCKSIZE - psize) == 0);
3412 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3413 SPA_MAXBLOCKSIZE - psize) == 0);
3415 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3416 lsize -= SPA_MINBLOCKSIZE) {
3417 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3418 if (zio_decompress_data(c, pbuf, lbuf,
3419 psize, lsize) == 0 &&
3420 zio_decompress_data(c, pbuf2, lbuf2,
3421 psize, lsize) == 0 &&
3422 bcmp(lbuf, lbuf2, lsize) == 0)
3425 if (c != ZIO_COMPRESS_FUNCTIONS)
3427 lsize -= SPA_MINBLOCKSIZE;
3430 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3431 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3433 if (lsize <= psize) {
3434 (void) printf("Decompress of %s failed\n", thing);
3444 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3445 zdb_print_blkptr((blkptr_t *)(void *)
3446 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3447 else if (flags & ZDB_FLAG_RAW)
3448 zdb_dump_block_raw(buf, size, flags);
3449 else if (flags & ZDB_FLAG_INDIRECT)
3450 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3452 else if (flags & ZDB_FLAG_GBH)
3453 zdb_dump_gbh(buf, flags);
3455 zdb_dump_block(thing, buf, size, flags);
3458 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3459 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3464 pool_match(nvlist_t *cfg, char *tgt)
3466 uint64_t v, guid = strtoull(tgt, NULL, 0);
3470 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3473 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3474 return (strcmp(s, tgt) == 0);
3480 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3483 nvlist_t *match = NULL;
3488 importargs_t args = { 0 };
3492 args.can_be_active = B_TRUE;
3494 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3499 pools = zpool_search_import(g_zfs, &args);
3501 if (pools != NULL) {
3502 nvpair_t *elem = NULL;
3503 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3504 verify(nvpair_value_nvlist(elem, configp) == 0);
3505 if (pool_match(*configp, *target)) {
3507 if (match != NULL) {
3508 /* print previously found config */
3510 (void) printf("%s\n", name);
3511 dump_nvlist(match, 8);
3514 (void) printf("%s\n",
3516 dump_nvlist(*configp, 8);
3519 name = nvpair_name(elem);
3525 (void) fatal("\tMatched %d pools - use pool GUID "
3526 "instead of pool name or \n"
3527 "\tpool name part of a dataset name to select pool", count);
3532 * If pool GUID was specified for pool id, replace it with pool name
3534 if (name && (strstr(*target, name) != *target)) {
3535 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3537 *target = umem_alloc(sz, UMEM_NOFAIL);
3538 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3541 *configp = name ? match : NULL;
3547 main(int argc, char **argv)
3550 struct rlimit rl = { 1024, 1024 };
3552 objset_t *os = NULL;
3556 char **searchdirs = NULL;
3559 nvlist_t *policy = NULL;
3560 uint64_t max_txg = UINT64_MAX;
3561 int rewind = ZPOOL_NEVER_REWIND;
3563 (void) setrlimit(RLIMIT_NOFILE, &rl);
3564 (void) enable_extended_FILE_stdio(-1, -1);
3566 dprintf_setup(&argc, argv);
3568 while ((c = getopt(argc, argv,
3569 "bcdhilmMI:suCDRSAFLXx:evp:t:U:P")) != -1) {
3597 max_inflight = strtoull(optarg, NULL, 0);
3598 if (max_inflight == 0) {
3599 (void) fprintf(stderr, "maximum number "
3600 "of inflight I/Os must be greater "
3606 if (searchdirs == NULL) {
3607 searchdirs = umem_alloc(sizeof (char *),
3610 char **tmp = umem_alloc((nsearch + 1) *
3611 sizeof (char *), UMEM_NOFAIL);
3612 bcopy(searchdirs, tmp, nsearch *
3614 umem_free(searchdirs,
3615 nsearch * sizeof (char *));
3618 searchdirs[nsearch++] = optarg;
3621 max_txg = strtoull(optarg, NULL, 0);
3622 if (max_txg < TXG_INITIAL) {
3623 (void) fprintf(stderr, "incorrect txg "
3624 "specified: %s\n", optarg);
3629 spa_config_path = optarg;
3635 vn_dumpdir = optarg;
3643 if (!dump_opt['e'] && searchdirs != NULL) {
3644 (void) fprintf(stderr, "-p option requires use of -e\n");
3649 * ZDB does not typically re-read blocks; therefore limit the ARC
3650 * to 256 MB, which can be used entirely for metadata.
3652 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
3655 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
3656 * "zdb -b" uses traversal prefetch which uses async reads.
3657 * For good performance, let several of them be active at once.
3659 zfs_vdev_async_read_max_active = 10;
3662 g_zfs = libzfs_init();
3664 fatal("Fail to initialize zfs");
3667 verbose = MAX(verbose, 1);
3669 for (c = 0; c < 256; c++) {
3670 if (dump_all && !strchr("elAFLRSXP", c))
3673 dump_opt[c] += verbose;
3676 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3677 zfs_recover = (dump_opt['A'] > 1);
3682 if (argc < 2 && dump_opt['R'])
3685 if (!dump_opt['e'] && dump_opt['C']) {
3686 dump_cachefile(spa_config_path);
3692 if (dump_opt['l']) {
3693 dump_label(argv[0]);
3697 if (dump_opt['X'] || dump_opt['F'])
3698 rewind = ZPOOL_DO_REWIND |
3699 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3701 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3702 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3703 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3704 fatal("internal error: %s", strerror(ENOMEM));
3709 if (dump_opt['e']) {
3710 nvlist_t *cfg = NULL;
3711 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3715 if (dump_opt['C'] > 1) {
3716 (void) printf("\nConfiguration for import:\n");
3717 dump_nvlist(cfg, 8);
3719 if (nvlist_add_nvlist(cfg,
3720 ZPOOL_REWIND_POLICY, policy) != 0) {
3721 fatal("can't open '%s': %s",
3722 target, strerror(ENOMEM));
3724 if ((error = spa_import(name, cfg, NULL,
3725 ZFS_IMPORT_MISSING_LOG)) != 0) {
3726 error = spa_import(name, cfg, NULL,
3727 ZFS_IMPORT_VERBATIM);
3733 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3734 error = spa_open_rewind(target, &spa, FTAG, policy,
3738 * If we're missing the log device then
3739 * try opening the pool after clearing the
3742 mutex_enter(&spa_namespace_lock);
3743 if ((spa = spa_lookup(target)) != NULL &&
3744 spa->spa_log_state == SPA_LOG_MISSING) {
3745 spa->spa_log_state = SPA_LOG_CLEAR;
3748 mutex_exit(&spa_namespace_lock);
3751 error = spa_open_rewind(target, &spa,
3752 FTAG, policy, NULL);
3756 error = dmu_objset_own(target, DMU_OST_ANY,
3760 nvlist_free(policy);
3763 fatal("can't open '%s': %s", target, strerror(error));
3767 if (!dump_opt['R']) {
3769 zopt_objects = argc;
3770 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3771 for (i = 0; i < zopt_objects; i++) {
3773 zopt_object[i] = strtoull(argv[i], NULL, 0);
3774 if (zopt_object[i] == 0 && errno != 0)
3775 fatal("bad number %s: %s",
3776 argv[i], strerror(errno));
3781 } else if (zopt_objects > 0 && !dump_opt['m']) {
3782 dump_dir(spa->spa_meta_objset);
3787 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3788 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3789 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3790 flagbits['e'] = ZDB_FLAG_BSWAP;
3791 flagbits['g'] = ZDB_FLAG_GBH;
3792 flagbits['i'] = ZDB_FLAG_INDIRECT;
3793 flagbits['p'] = ZDB_FLAG_PHYS;
3794 flagbits['r'] = ZDB_FLAG_RAW;
3796 for (i = 0; i < argc; i++)
3797 zdb_read_block(argv[i], spa);
3800 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3802 fuid_table_destroy();
3803 sa_loaded = B_FALSE;