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9290 device removal reduces redundancy of mirrors
[unleashed.git] / usr / src / cmd / zdb / zdb.c
blobcb02698ceb793bce96345aa326b25cd59c48cfc7
1 /*
2 * CDDL HEADER START
3 *
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.
7 *
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.
12 *
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]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2017 Nexenta Systems, Inc.
27 * Copyright 2017 RackTop Systems.
28 */
29
30 #include <stdio.h>
31 #include <unistd.h>
32 #include <stdio_ext.h>
33 #include <stdlib.h>
34 #include <ctype.h>
35 #include <sys/zfs_context.h>
36 #include <sys/spa.h>
37 #include <sys/spa_impl.h>
38 #include <sys/dmu.h>
39 #include <sys/zap.h>
40 #include <sys/fs/zfs.h>
41 #include <sys/zfs_znode.h>
42 #include <sys/zfs_sa.h>
43 #include <sys/sa.h>
44 #include <sys/sa_impl.h>
45 #include <sys/vdev.h>
46 #include <sys/vdev_impl.h>
47 #include <sys/metaslab_impl.h>
48 #include <sys/dmu_objset.h>
49 #include <sys/dsl_dir.h>
50 #include <sys/dsl_dataset.h>
51 #include <sys/dsl_pool.h>
52 #include <sys/dbuf.h>
53 #include <sys/zil.h>
54 #include <sys/zil_impl.h>
55 #include <sys/stat.h>
56 #include <sys/resource.h>
57 #include <sys/dmu_traverse.h>
58 #include <sys/zio_checksum.h>
59 #include <sys/zio_compress.h>
60 #include <sys/zfs_fuid.h>
61 #include <sys/arc.h>
62 #include <sys/ddt.h>
63 #include <sys/zfeature.h>
64 #include <sys/abd.h>
65 #include <sys/blkptr.h>
66 #include <zfs_comutil.h>
67 #include <libcmdutils.h>
68 #undef verify
69 #include <libzfs.h>
70
71 #include "zdb.h"
72
73 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
74 zio_compress_table[(idx)].ci_name : "UNKNOWN")
75 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
76 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
77 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
78 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
79 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
80 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
81 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \
82 DMU_OT_ZAP_OTHER : \
83 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \
84 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES)
85
86 #ifndef lint
87 extern int reference_tracking_enable;
88 extern boolean_t zfs_recover;
89 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
90 extern int zfs_vdev_async_read_max_active;
91 extern int aok;
92 extern boolean_t spa_load_verify_dryrun;
93 #else
94 int reference_tracking_enable;
95 boolean_t zfs_recover;
96 uint64_t zfs_arc_max, zfs_arc_meta_limit;
97 int zfs_vdev_async_read_max_active;
98 int aok;
99 boolean_t spa_load_verify_dryrun;
100 #endif
101
102 static const char cmdname[] = "zdb";
103 uint8_t dump_opt[256];
104
105 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
106
107 uint64_t *zopt_object = NULL;
108 static unsigned zopt_objects = 0;
109 libzfs_handle_t *g_zfs;
110 uint64_t max_inflight = 1000;
111
112 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
113
114 /*
115 * These libumem hooks provide a reasonable set of defaults for the allocator's
116 * debugging facilities.
117 */
118 const char *
119 _umem_debug_init()
120 {
121 return ("default,verbose"); /* $UMEM_DEBUG setting */
122 }
123
124 const char *
125 _umem_logging_init(void)
126 {
127 return ("fail,contents"); /* $UMEM_LOGGING setting */
128 }
129
130 static void
131 usage(void)
132 {
133 (void) fprintf(stderr,
134 "Usage:\t%s [-AbcdDFGhikLMPsvX] [-e [-V] [-p <path> ...]] "
135 "[-I <inflight I/Os>]\n"
136 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
137 "\t\t[<poolname> [<object> ...]]\n"
138 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> "
139 "[<object> ...]\n"
140 "\t%s -C [-A] [-U <cache>]\n"
141 "\t%s -l [-Aqu] <device>\n"
142 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
143 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
144 "\t%s -O <dataset> <path>\n"
145 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
146 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
147 "\t%s -E [-A] word0:word1:...:word15\n"
148 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
149 "<poolname>\n\n",
150 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
151 cmdname, cmdname);
152
153 (void) fprintf(stderr, " Dataset name must include at least one "
154 "separator character '/' or '@'\n");
155 (void) fprintf(stderr, " If dataset name is specified, only that "
156 "dataset is dumped\n");
157 (void) fprintf(stderr, " If object numbers are specified, only "
158 "those objects are dumped\n\n");
159 (void) fprintf(stderr, " Options to control amount of output:\n");
160 (void) fprintf(stderr, " -b block statistics\n");
161 (void) fprintf(stderr, " -c checksum all metadata (twice for "
162 "all data) blocks\n");
163 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
164 (void) fprintf(stderr, " -d dataset(s)\n");
165 (void) fprintf(stderr, " -D dedup statistics\n");
166 (void) fprintf(stderr, " -E decode and display block from an "
167 "embedded block pointer\n");
168 (void) fprintf(stderr, " -h pool history\n");
169 (void) fprintf(stderr, " -i intent logs\n");
170 (void) fprintf(stderr, " -l read label contents\n");
171 (void) fprintf(stderr, " -k examine the checkpointed state "
172 "of the pool\n");
173 (void) fprintf(stderr, " -L disable leak tracking (do not "
174 "load spacemaps)\n");
175 (void) fprintf(stderr, " -m metaslabs\n");
176 (void) fprintf(stderr, " -M metaslab groups\n");
177 (void) fprintf(stderr, " -O perform object lookups by path\n");
178 (void) fprintf(stderr, " -R read and display block from a "
179 "device\n");
180 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
181 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
182 (void) fprintf(stderr, " -v verbose (applies to all "
183 "others)\n\n");
184 (void) fprintf(stderr, " Below options are intended for use "
185 "with other options:\n");
186 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
187 "panic recovery (-AA) or both (-AAA)\n");
188 (void) fprintf(stderr, " -e pool is exported/destroyed/"
189 "has altroot/not in a cachefile\n");
190 (void) fprintf(stderr, " -F attempt automatic rewind within "
191 "safe range of transaction groups\n");
192 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
193 "exiting\n");
194 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
195 "specify the maximum number of "
196 "checksumming I/Os [default is 200]\n");
197 (void) fprintf(stderr, " -o <variable>=<value> set global "
198 "variable to an unsigned 32-bit integer value\n");
199 (void) fprintf(stderr, " -p <path> -- use one or more with "
200 "-e to specify path to vdev dir\n");
201 (void) fprintf(stderr, " -P print numbers in parseable form\n");
202 (void) fprintf(stderr, " -q don't print label contents\n");
203 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
204 "searching for uberblocks\n");
205 (void) fprintf(stderr, " -u uberblock\n");
206 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
207 "cachefile\n");
208 (void) fprintf(stderr, " -V do verbatim import\n");
209 (void) fprintf(stderr, " -x <dumpdir> -- "
210 "dump all read blocks into specified directory\n");
211 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
212 "work with dataset)\n\n");
213 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
214 "to make only that option verbose\n");
215 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
216 exit(1);
217 }
218
219 static void
220 dump_debug_buffer()
221 {
222 if (dump_opt['G']) {
223 (void) printf("\n");
224 zfs_dbgmsg_print("zdb");
225 }
226 }
227
228 /*
229 * Called for usage errors that are discovered after a call to spa_open(),
230 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
231 */
232
233 static void
234 fatal(const char *fmt, ...)
235 {
236 va_list ap;
237
238 va_start(ap, fmt);
239 (void) fprintf(stderr, "%s: ", cmdname);
240 (void) vfprintf(stderr, fmt, ap);
241 va_end(ap);
242 (void) fprintf(stderr, "\n");
243
244 dump_debug_buffer();
245
246 exit(1);
247 }
248
249 /* ARGSUSED */
250 static void
251 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
252 {
253 nvlist_t *nv;
254 size_t nvsize = *(uint64_t *)data;
255 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
256
257 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
258
259 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
260
261 umem_free(packed, nvsize);
262
263 dump_nvlist(nv, 8);
264
265 nvlist_free(nv);
266 }
267
268 /* ARGSUSED */
269 static void
270 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
271 {
272 spa_history_phys_t *shp = data;
273
274 if (shp == NULL)
275 return;
276
277 (void) printf("\t\tpool_create_len = %llu\n",
278 (u_longlong_t)shp->sh_pool_create_len);
279 (void) printf("\t\tphys_max_off = %llu\n",
280 (u_longlong_t)shp->sh_phys_max_off);
281 (void) printf("\t\tbof = %llu\n",
282 (u_longlong_t)shp->sh_bof);
283 (void) printf("\t\teof = %llu\n",
284 (u_longlong_t)shp->sh_eof);
285 (void) printf("\t\trecords_lost = %llu\n",
286 (u_longlong_t)shp->sh_records_lost);
287 }
288
289 static void
290 zdb_nicenum(uint64_t num, char *buf, size_t buflen)
291 {
292 if (dump_opt['P'])
293 (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
294 else
295 nicenum(num, buf, sizeof (buf));
296 }
297
298 static const char histo_stars[] = "****************************************";
299 static const uint64_t histo_width = sizeof (histo_stars) - 1;
300
301 static void
302 dump_histogram(const uint64_t *histo, int size, int offset)
303 {
304 int i;
305 int minidx = size - 1;
306 int maxidx = 0;
307 uint64_t max = 0;
308
309 for (i = 0; i < size; i++) {
310 if (histo[i] > max)
311 max = histo[i];
312 if (histo[i] > 0 && i > maxidx)
313 maxidx = i;
314 if (histo[i] > 0 && i < minidx)
315 minidx = i;
316 }
317
318 if (max < histo_width)
319 max = histo_width;
320
321 for (i = minidx; i <= maxidx; i++) {
322 (void) printf("\t\t\t%3u: %6llu %s\n",
323 i + offset, (u_longlong_t)histo[i],
324 &histo_stars[(max - histo[i]) * histo_width / max]);
325 }
326 }
327
328 static void
329 dump_zap_stats(objset_t *os, uint64_t object)
330 {
331 int error;
332 zap_stats_t zs;
333
334 error = zap_get_stats(os, object, &zs);
335 if (error)
336 return;
337
338 if (zs.zs_ptrtbl_len == 0) {
339 ASSERT(zs.zs_num_blocks == 1);
340 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
341 (u_longlong_t)zs.zs_blocksize,
342 (u_longlong_t)zs.zs_num_entries);
343 return;
344 }
345
346 (void) printf("\tFat ZAP stats:\n");
347
348 (void) printf("\t\tPointer table:\n");
349 (void) printf("\t\t\t%llu elements\n",
350 (u_longlong_t)zs.zs_ptrtbl_len);
351 (void) printf("\t\t\tzt_blk: %llu\n",
352 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
353 (void) printf("\t\t\tzt_numblks: %llu\n",
354 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
355 (void) printf("\t\t\tzt_shift: %llu\n",
356 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
357 (void) printf("\t\t\tzt_blks_copied: %llu\n",
358 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
359 (void) printf("\t\t\tzt_nextblk: %llu\n",
360 (u_longlong_t)zs.zs_ptrtbl_nextblk);
361
362 (void) printf("\t\tZAP entries: %llu\n",
363 (u_longlong_t)zs.zs_num_entries);
364 (void) printf("\t\tLeaf blocks: %llu\n",
365 (u_longlong_t)zs.zs_num_leafs);
366 (void) printf("\t\tTotal blocks: %llu\n",
367 (u_longlong_t)zs.zs_num_blocks);
368 (void) printf("\t\tzap_block_type: 0x%llx\n",
369 (u_longlong_t)zs.zs_block_type);
370 (void) printf("\t\tzap_magic: 0x%llx\n",
371 (u_longlong_t)zs.zs_magic);
372 (void) printf("\t\tzap_salt: 0x%llx\n",
373 (u_longlong_t)zs.zs_salt);
374
375 (void) printf("\t\tLeafs with 2^n pointers:\n");
376 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
377
378 (void) printf("\t\tBlocks with n*5 entries:\n");
379 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
380
381 (void) printf("\t\tBlocks n/10 full:\n");
382 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
383
384 (void) printf("\t\tEntries with n chunks:\n");
385 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
386
387 (void) printf("\t\tBuckets with n entries:\n");
388 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
389 }
390
391 /*ARGSUSED*/
392 static void
393 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
394 {
395 }
396
397 /*ARGSUSED*/
398 static void
399 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
400 {
401 (void) printf("\tUNKNOWN OBJECT TYPE\n");
402 }
403
404 /*ARGSUSED*/
405 static void
406 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
407 {
408 }
409
410 /*ARGSUSED*/
411 static void
412 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
413 {
414 }
415
416 /*ARGSUSED*/
417 static void
418 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
419 {
420 zap_cursor_t zc;
421 zap_attribute_t attr;
422 void *prop;
423 unsigned i;
424
425 dump_zap_stats(os, object);
426 (void) printf("\n");
427
428 for (zap_cursor_init(&zc, os, object);
429 zap_cursor_retrieve(&zc, &attr) == 0;
430 zap_cursor_advance(&zc)) {
431 (void) printf("\t\t%s = ", attr.za_name);
432 if (attr.za_num_integers == 0) {
433 (void) printf("\n");
434 continue;
435 }
436 prop = umem_zalloc(attr.za_num_integers *
437 attr.za_integer_length, UMEM_NOFAIL);
438 (void) zap_lookup(os, object, attr.za_name,
439 attr.za_integer_length, attr.za_num_integers, prop);
440 if (attr.za_integer_length == 1) {
441 (void) printf("%s", (char *)prop);
442 } else {
443 for (i = 0; i < attr.za_num_integers; i++) {
444 switch (attr.za_integer_length) {
445 case 2:
446 (void) printf("%u ",
447 ((uint16_t *)prop)[i]);
448 break;
449 case 4:
450 (void) printf("%u ",
451 ((uint32_t *)prop)[i]);
452 break;
453 case 8:
454 (void) printf("%lld ",
455 (u_longlong_t)((int64_t *)prop)[i]);
456 break;
457 }
458 }
459 }
460 (void) printf("\n");
461 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
462 }
463 zap_cursor_fini(&zc);
464 }
465
466 static void
467 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
468 {
469 bpobj_phys_t *bpop = data;
470 char bytes[32], comp[32], uncomp[32];
471
472 /* make sure the output won't get truncated */
473 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
474 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
475 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
476
477 if (bpop == NULL)
478 return;
479
480 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
481 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
482 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
483
484 (void) printf("\t\tnum_blkptrs = %llu\n",
485 (u_longlong_t)bpop->bpo_num_blkptrs);
486 (void) printf("\t\tbytes = %s\n", bytes);
487 if (size >= BPOBJ_SIZE_V1) {
488 (void) printf("\t\tcomp = %s\n", comp);
489 (void) printf("\t\tuncomp = %s\n", uncomp);
490 }
491 if (size >= sizeof (*bpop)) {
492 (void) printf("\t\tsubobjs = %llu\n",
493 (u_longlong_t)bpop->bpo_subobjs);
494 (void) printf("\t\tnum_subobjs = %llu\n",
495 (u_longlong_t)bpop->bpo_num_subobjs);
496 }
497
498 if (dump_opt['d'] < 5)
499 return;
500
501 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
502 char blkbuf[BP_SPRINTF_LEN];
503 blkptr_t bp;
504
505 int err = dmu_read(os, object,
506 i * sizeof (bp), sizeof (bp), &bp, 0);
507 if (err != 0) {
508 (void) printf("got error %u from dmu_read\n", err);
509 break;
510 }
511 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
512 (void) printf("\t%s\n", blkbuf);
513 }
514 }
515
516 /* ARGSUSED */
517 static void
518 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
519 {
520 dmu_object_info_t doi;
521
522 VERIFY0(dmu_object_info(os, object, &doi));
523 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
524
525 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
526 if (err != 0) {
527 (void) printf("got error %u from dmu_read\n", err);
528 kmem_free(subobjs, doi.doi_max_offset);
529 return;
530 }
531
532 int64_t last_nonzero = -1;
533 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
534 if (subobjs[i] != 0)
535 last_nonzero = i;
536 }
537
538 for (int64_t i = 0; i <= last_nonzero; i++) {
539 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
540 }
541 kmem_free(subobjs, doi.doi_max_offset);
542 }
543
544 /*ARGSUSED*/
545 static void
546 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
547 {
548 dump_zap_stats(os, object);
549 /* contents are printed elsewhere, properly decoded */
550 }
551
552 /*ARGSUSED*/
553 static void
554 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
555 {
556 zap_cursor_t zc;
557 zap_attribute_t attr;
558
559 dump_zap_stats(os, object);
560 (void) printf("\n");
561
562 for (zap_cursor_init(&zc, os, object);
563 zap_cursor_retrieve(&zc, &attr) == 0;
564 zap_cursor_advance(&zc)) {
565 (void) printf("\t\t%s = ", attr.za_name);
566 if (attr.za_num_integers == 0) {
567 (void) printf("\n");
568 continue;
569 }
570 (void) printf(" %llx : [%d:%d:%d]\n",
571 (u_longlong_t)attr.za_first_integer,
572 (int)ATTR_LENGTH(attr.za_first_integer),
573 (int)ATTR_BSWAP(attr.za_first_integer),
574 (int)ATTR_NUM(attr.za_first_integer));
575 }
576 zap_cursor_fini(&zc);
577 }
578
579 /*ARGSUSED*/
580 static void
581 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
582 {
583 zap_cursor_t zc;
584 zap_attribute_t attr;
585 uint16_t *layout_attrs;
586 unsigned i;
587
588 dump_zap_stats(os, object);
589 (void) printf("\n");
590
591 for (zap_cursor_init(&zc, os, object);
592 zap_cursor_retrieve(&zc, &attr) == 0;
593 zap_cursor_advance(&zc)) {
594 (void) printf("\t\t%s = [", attr.za_name);
595 if (attr.za_num_integers == 0) {
596 (void) printf("\n");
597 continue;
598 }
599
600 VERIFY(attr.za_integer_length == 2);
601 layout_attrs = umem_zalloc(attr.za_num_integers *
602 attr.za_integer_length, UMEM_NOFAIL);
603
604 VERIFY(zap_lookup(os, object, attr.za_name,
605 attr.za_integer_length,
606 attr.za_num_integers, layout_attrs) == 0);
607
608 for (i = 0; i != attr.za_num_integers; i++)
609 (void) printf(" %d ", (int)layout_attrs[i]);
610 (void) printf("]\n");
611 umem_free(layout_attrs,
612 attr.za_num_integers * attr.za_integer_length);
613 }
614 zap_cursor_fini(&zc);
615 }
616
617 /*ARGSUSED*/
618 static void
619 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
620 {
621 zap_cursor_t zc;
622 zap_attribute_t attr;
623 const char *typenames[] = {
624 /* 0 */ "not specified",
625 /* 1 */ "FIFO",
626 /* 2 */ "Character Device",
627 /* 3 */ "3 (invalid)",
628 /* 4 */ "Directory",
629 /* 5 */ "5 (invalid)",
630 /* 6 */ "Block Device",
631 /* 7 */ "7 (invalid)",
632 /* 8 */ "Regular File",
633 /* 9 */ "9 (invalid)",
634 /* 10 */ "Symbolic Link",
635 /* 11 */ "11 (invalid)",
636 /* 12 */ "Socket",
637 /* 13 */ "Door",
638 /* 14 */ "Event Port",
639 /* 15 */ "15 (invalid)",
640 };
641
642 dump_zap_stats(os, object);
643 (void) printf("\n");
644
645 for (zap_cursor_init(&zc, os, object);
646 zap_cursor_retrieve(&zc, &attr) == 0;
647 zap_cursor_advance(&zc)) {
648 (void) printf("\t\t%s = %lld (type: %s)\n",
649 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
650 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
651 }
652 zap_cursor_fini(&zc);
653 }
654
655 static int
656 get_dtl_refcount(vdev_t *vd)
657 {
658 int refcount = 0;
659
660 if (vd->vdev_ops->vdev_op_leaf) {
661 space_map_t *sm = vd->vdev_dtl_sm;
662
663 if (sm != NULL &&
664 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
665 return (1);
666 return (0);
667 }
668
669 for (unsigned c = 0; c < vd->vdev_children; c++)
670 refcount += get_dtl_refcount(vd->vdev_child[c]);
671 return (refcount);
672 }
673
674 static int
675 get_metaslab_refcount(vdev_t *vd)
676 {
677 int refcount = 0;
678
679 if (vd->vdev_top == vd) {
680 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
681 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
682
683 if (sm != NULL &&
684 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
685 refcount++;
686 }
687 }
688 for (unsigned c = 0; c < vd->vdev_children; c++)
689 refcount += get_metaslab_refcount(vd->vdev_child[c]);
690
691 return (refcount);
692 }
693
694 static int
695 get_obsolete_refcount(vdev_t *vd)
696 {
697 int refcount = 0;
698
699 uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd);
700 if (vd->vdev_top == vd && obsolete_sm_obj != 0) {
701 dmu_object_info_t doi;
702 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset,
703 obsolete_sm_obj, &doi));
704 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
705 refcount++;
706 }
707 } else {
708 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL);
709 ASSERT3U(obsolete_sm_obj, ==, 0);
710 }
711 for (unsigned c = 0; c < vd->vdev_children; c++) {
712 refcount += get_obsolete_refcount(vd->vdev_child[c]);
713 }
714
715 return (refcount);
716 }
717
718 static int
719 get_prev_obsolete_spacemap_refcount(spa_t *spa)
720 {
721 uint64_t prev_obj =
722 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object;
723 if (prev_obj != 0) {
724 dmu_object_info_t doi;
725 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi));
726 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
727 return (1);
728 }
729 }
730 return (0);
731 }
732
733 static int
734 get_checkpoint_refcount(vdev_t *vd)
735 {
736 int refcount = 0;
737
738 if (vd->vdev_top == vd && vd->vdev_top_zap != 0 &&
739 zap_contains(spa_meta_objset(vd->vdev_spa),
740 vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0)
741 refcount++;
742
743 for (uint64_t c = 0; c < vd->vdev_children; c++)
744 refcount += get_checkpoint_refcount(vd->vdev_child[c]);
745
746 return (refcount);
747 }
748
749 static int
750 verify_spacemap_refcounts(spa_t *spa)
751 {
752 uint64_t expected_refcount = 0;
753 uint64_t actual_refcount;
754
755 (void) feature_get_refcount(spa,
756 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
757 &expected_refcount);
758 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
759 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
760 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev);
761 actual_refcount += get_prev_obsolete_spacemap_refcount(spa);
762 actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev);
763
764 if (expected_refcount != actual_refcount) {
765 (void) printf("space map refcount mismatch: expected %lld != "
766 "actual %lld\n",
767 (longlong_t)expected_refcount,
768 (longlong_t)actual_refcount);
769 return (2);
770 }
771 return (0);
772 }
773
774 static void
775 dump_spacemap(objset_t *os, space_map_t *sm)
776 {
777 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
778 "INVALID", "INVALID", "INVALID", "INVALID" };
779
780 if (sm == NULL)
781 return;
782
783 (void) printf("space map object %llu:\n",
784 (longlong_t)sm->sm_phys->smp_object);
785 (void) printf(" smp_objsize = 0x%llx\n",
786 (longlong_t)sm->sm_phys->smp_objsize);
787 (void) printf(" smp_alloc = 0x%llx\n",
788 (longlong_t)sm->sm_phys->smp_alloc);
789
790 /*
791 * Print out the freelist entries in both encoded and decoded form.
792 */
793 uint8_t mapshift = sm->sm_shift;
794 int64_t alloc = 0;
795 uint64_t word;
796 for (uint64_t offset = 0; offset < space_map_length(sm);
797 offset += sizeof (word)) {
798
799 VERIFY0(dmu_read(os, space_map_object(sm), offset,
800 sizeof (word), &word, DMU_READ_PREFETCH));
801
802 if (sm_entry_is_debug(word)) {
803 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
804 (u_longlong_t)(offset / sizeof (word)),
805 ddata[SM_DEBUG_ACTION_DECODE(word)],
806 (u_longlong_t)SM_DEBUG_TXG_DECODE(word),
807 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(word));
808 continue;
809 }
810
811 uint8_t words;
812 char entry_type;
813 uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID;
814
815 if (sm_entry_is_single_word(word)) {
816 entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ?
817 'A' : 'F';
818 entry_off = (SM_OFFSET_DECODE(word) << mapshift) +
819 sm->sm_start;
820 entry_run = SM_RUN_DECODE(word) << mapshift;
821 words = 1;
822 } else {
823 /* it is a two-word entry so we read another word */
824 ASSERT(sm_entry_is_double_word(word));
825
826 uint64_t extra_word;
827 offset += sizeof (extra_word);
828 VERIFY0(dmu_read(os, space_map_object(sm), offset,
829 sizeof (extra_word), &extra_word,
830 DMU_READ_PREFETCH));
831
832 ASSERT3U(offset, <=, space_map_length(sm));
833
834 entry_run = SM2_RUN_DECODE(word) << mapshift;
835 entry_vdev = SM2_VDEV_DECODE(word);
836 entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ?
837 'A' : 'F';
838 entry_off = (SM2_OFFSET_DECODE(extra_word) <<
839 mapshift) + sm->sm_start;
840 words = 2;
841 }
842
843 (void) printf("\t [%6llu] %c range:"
844 " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n",
845 (u_longlong_t)(offset / sizeof (word)),
846 entry_type, (u_longlong_t)entry_off,
847 (u_longlong_t)(entry_off + entry_run),
848 (u_longlong_t)entry_run,
849 (u_longlong_t)entry_vdev, words);
850
851 if (entry_type == 'A')
852 alloc += entry_run;
853 else
854 alloc -= entry_run;
855 }
856 if ((uint64_t)alloc != space_map_allocated(sm)) {
857 (void) printf("space_map_object alloc (%lld) INCONSISTENT "
858 "with space map summary (%lld)\n",
859 (longlong_t)space_map_allocated(sm), (longlong_t)alloc);
860 }
861 }
862
863 static void
864 dump_metaslab_stats(metaslab_t *msp)
865 {
866 char maxbuf[32];
867 range_tree_t *rt = msp->ms_allocatable;
868 avl_tree_t *t = &msp->ms_allocatable_by_size;
869 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
870
871 /* max sure nicenum has enough space */
872 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
873
874 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf));
875
876 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
877 "segments", avl_numnodes(t), "maxsize", maxbuf,
878 "freepct", free_pct);
879 (void) printf("\tIn-memory histogram:\n");
880 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
881 }
882
883 static void
884 dump_metaslab(metaslab_t *msp)
885 {
886 vdev_t *vd = msp->ms_group->mg_vd;
887 spa_t *spa = vd->vdev_spa;
888 space_map_t *sm = msp->ms_sm;
889 char freebuf[32];
890
891 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
892 sizeof (freebuf));
893
894 (void) printf(
895 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
896 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
897 (u_longlong_t)space_map_object(sm), freebuf);
898
899 if (dump_opt['m'] > 2 && !dump_opt['L']) {
900 mutex_enter(&msp->ms_lock);
901 metaslab_load_wait(msp);
902 if (!msp->ms_loaded) {
903 VERIFY0(metaslab_load(msp));
904 range_tree_stat_verify(msp->ms_allocatable);
905 }
906 dump_metaslab_stats(msp);
907 metaslab_unload(msp);
908 mutex_exit(&msp->ms_lock);
909 }
910
911 if (dump_opt['m'] > 1 && sm != NULL &&
912 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
913 /*
914 * The space map histogram represents free space in chunks
915 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
916 */
917 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
918 (u_longlong_t)msp->ms_fragmentation);
919 dump_histogram(sm->sm_phys->smp_histogram,
920 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
921 }
922
923 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
924 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
925
926 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
927 }
928 }
929
930 static void
931 print_vdev_metaslab_header(vdev_t *vd)
932 {
933 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
934 (u_longlong_t)vd->vdev_id,
935 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
936 "offset", "spacemap", "free");
937 (void) printf("\t%15s %19s %15s %10s\n",
938 "---------------", "-------------------",
939 "---------------", "-------------");
940 }
941
942 static void
943 dump_metaslab_groups(spa_t *spa)
944 {
945 vdev_t *rvd = spa->spa_root_vdev;
946 metaslab_class_t *mc = spa_normal_class(spa);
947 uint64_t fragmentation;
948
949 metaslab_class_histogram_verify(mc);
950
951 for (unsigned c = 0; c < rvd->vdev_children; c++) {
952 vdev_t *tvd = rvd->vdev_child[c];
953 metaslab_group_t *mg = tvd->vdev_mg;
954
955 if (mg->mg_class != mc)
956 continue;
957
958 metaslab_group_histogram_verify(mg);
959 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
960
961 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
962 "fragmentation",
963 (u_longlong_t)tvd->vdev_id,
964 (u_longlong_t)tvd->vdev_ms_count);
965 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
966 (void) printf("%3s\n", "-");
967 } else {
968 (void) printf("%3llu%%\n",
969 (u_longlong_t)mg->mg_fragmentation);
970 }
971 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
972 }
973
974 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
975 fragmentation = metaslab_class_fragmentation(mc);
976 if (fragmentation == ZFS_FRAG_INVALID)
977 (void) printf("\t%3s\n", "-");
978 else
979 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
980 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
981 }
982
983 static void
984 print_vdev_indirect(vdev_t *vd)
985 {
986 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
987 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
988 vdev_indirect_births_t *vib = vd->vdev_indirect_births;
989
990 if (vim == NULL) {
991 ASSERT3P(vib, ==, NULL);
992 return;
993 }
994
995 ASSERT3U(vdev_indirect_mapping_object(vim), ==,
996 vic->vic_mapping_object);
997 ASSERT3U(vdev_indirect_births_object(vib), ==,
998 vic->vic_births_object);
999
1000 (void) printf("indirect births obj %llu:\n",
1001 (longlong_t)vic->vic_births_object);
1002 (void) printf(" vib_count = %llu\n",
1003 (longlong_t)vdev_indirect_births_count(vib));
1004 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) {
1005 vdev_indirect_birth_entry_phys_t *cur_vibe =
1006 &vib->vib_entries[i];
1007 (void) printf("\toffset %llx -> txg %llu\n",
1008 (longlong_t)cur_vibe->vibe_offset,
1009 (longlong_t)cur_vibe->vibe_phys_birth_txg);
1010 }
1011 (void) printf("\n");
1012
1013 (void) printf("indirect mapping obj %llu:\n",
1014 (longlong_t)vic->vic_mapping_object);
1015 (void) printf(" vim_max_offset = 0x%llx\n",
1016 (longlong_t)vdev_indirect_mapping_max_offset(vim));
1017 (void) printf(" vim_bytes_mapped = 0x%llx\n",
1018 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim));
1019 (void) printf(" vim_count = %llu\n",
1020 (longlong_t)vdev_indirect_mapping_num_entries(vim));
1021
1022 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3)
1023 return;
1024
1025 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim);
1026
1027 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
1028 vdev_indirect_mapping_entry_phys_t *vimep =
1029 &vim->vim_entries[i];
1030 (void) printf("\t<%llx:%llx:%llx> -> "
1031 "<%llx:%llx:%llx> (%x obsolete)\n",
1032 (longlong_t)vd->vdev_id,
1033 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
1034 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
1035 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst),
1036 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst),
1037 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
1038 counts[i]);
1039 }
1040 (void) printf("\n");
1041
1042 uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd);
1043 if (obsolete_sm_object != 0) {
1044 objset_t *mos = vd->vdev_spa->spa_meta_objset;
1045 (void) printf("obsolete space map object %llu:\n",
1046 (u_longlong_t)obsolete_sm_object);
1047 ASSERT(vd->vdev_obsolete_sm != NULL);
1048 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==,
1049 obsolete_sm_object);
1050 dump_spacemap(mos, vd->vdev_obsolete_sm);
1051 (void) printf("\n");
1052 }
1053 }
1054
1055 static void
1056 dump_metaslabs(spa_t *spa)
1057 {
1058 vdev_t *vd, *rvd = spa->spa_root_vdev;
1059 uint64_t m, c = 0, children = rvd->vdev_children;
1060
1061 (void) printf("\nMetaslabs:\n");
1062
1063 if (!dump_opt['d'] && zopt_objects > 0) {
1064 c = zopt_object[0];
1065
1066 if (c >= children)
1067 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
1068
1069 if (zopt_objects > 1) {
1070 vd = rvd->vdev_child[c];
1071 print_vdev_metaslab_header(vd);
1072
1073 for (m = 1; m < zopt_objects; m++) {
1074 if (zopt_object[m] < vd->vdev_ms_count)
1075 dump_metaslab(
1076 vd->vdev_ms[zopt_object[m]]);
1077 else
1078 (void) fprintf(stderr, "bad metaslab "
1079 "number %llu\n",
1080 (u_longlong_t)zopt_object[m]);
1081 }
1082 (void) printf("\n");
1083 return;
1084 }
1085 children = c + 1;
1086 }
1087 for (; c < children; c++) {
1088 vd = rvd->vdev_child[c];
1089 print_vdev_metaslab_header(vd);
1090
1091 print_vdev_indirect(vd);
1092
1093 for (m = 0; m < vd->vdev_ms_count; m++)
1094 dump_metaslab(vd->vdev_ms[m]);
1095 (void) printf("\n");
1096 }
1097 }
1098
1099 static void
1100 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
1101 {
1102 const ddt_phys_t *ddp = dde->dde_phys;
1103 const ddt_key_t *ddk = &dde->dde_key;
1104 const char *types[4] = { "ditto", "single", "double", "triple" };
1105 char blkbuf[BP_SPRINTF_LEN];
1106 blkptr_t blk;
1107
1108 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
1109 if (ddp->ddp_phys_birth == 0)
1110 continue;
1111 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
1112 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
1113 (void) printf("index %llx refcnt %llu %s %s\n",
1114 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
1115 types[p], blkbuf);
1116 }
1117 }
1118
1119 static void
1120 dump_dedup_ratio(const ddt_stat_t *dds)
1121 {
1122 double rL, rP, rD, D, dedup, compress, copies;
1123
1124 if (dds->dds_blocks == 0)
1125 return;
1126
1127 rL = (double)dds->dds_ref_lsize;
1128 rP = (double)dds->dds_ref_psize;
1129 rD = (double)dds->dds_ref_dsize;
1130 D = (double)dds->dds_dsize;
1131
1132 dedup = rD / D;
1133 compress = rL / rP;
1134 copies = rD / rP;
1135
1136 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
1137 "dedup * compress / copies = %.2f\n\n",
1138 dedup, compress, copies, dedup * compress / copies);
1139 }
1140
1141 static void
1142 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
1143 {
1144 char name[DDT_NAMELEN];
1145 ddt_entry_t dde;
1146 uint64_t walk = 0;
1147 dmu_object_info_t doi;
1148 uint64_t count, dspace, mspace;
1149 int error;
1150
1151 error = ddt_object_info(ddt, type, class, &doi);
1152
1153 if (error == ENOENT)
1154 return;
1155 ASSERT(error == 0);
1156
1157 if ((count = ddt_object_count(ddt, type, class)) == 0)
1158 return;
1159
1160 dspace = doi.doi_physical_blocks_512 << 9;
1161 mspace = doi.doi_fill_count * doi.doi_data_block_size;
1162
1163 ddt_object_name(ddt, type, class, name);
1164
1165 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
1166 name,
1167 (u_longlong_t)count,
1168 (u_longlong_t)(dspace / count),
1169 (u_longlong_t)(mspace / count));
1170
1171 if (dump_opt['D'] < 3)
1172 return;
1173
1174 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
1175
1176 if (dump_opt['D'] < 4)
1177 return;
1178
1179 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
1180 return;
1181
1182 (void) printf("%s contents:\n\n", name);
1183
1184 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1185 dump_dde(ddt, &dde, walk);
1186
1187 ASSERT3U(error, ==, ENOENT);
1188
1189 (void) printf("\n");
1190 }
1191
1192 static void
1193 dump_all_ddts(spa_t *spa)
1194 {
1195 ddt_histogram_t ddh_total;
1196 ddt_stat_t dds_total;
1197
1198 bzero(&ddh_total, sizeof (ddh_total));
1199 bzero(&dds_total, sizeof (dds_total));
1200
1201 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1202 ddt_t *ddt = spa->spa_ddt[c];
1203 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1204 for (enum ddt_class class = 0; class < DDT_CLASSES;
1205 class++) {
1206 dump_ddt(ddt, type, class);
1207 }
1208 }
1209 }
1210
1211 ddt_get_dedup_stats(spa, &dds_total);
1212
1213 if (dds_total.dds_blocks == 0) {
1214 (void) printf("All DDTs are empty\n");
1215 return;
1216 }
1217
1218 (void) printf("\n");
1219
1220 if (dump_opt['D'] > 1) {
1221 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1222 ddt_get_dedup_histogram(spa, &ddh_total);
1223 zpool_dump_ddt(&dds_total, &ddh_total);
1224 }
1225
1226 dump_dedup_ratio(&dds_total);
1227 }
1228
1229 static void
1230 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1231 {
1232 char *prefix = arg;
1233
1234 (void) printf("%s [%llu,%llu) length %llu\n",
1235 prefix,
1236 (u_longlong_t)start,
1237 (u_longlong_t)(start + size),
1238 (u_longlong_t)(size));
1239 }
1240
1241 static void
1242 dump_dtl(vdev_t *vd, int indent)
1243 {
1244 spa_t *spa = vd->vdev_spa;
1245 boolean_t required;
1246 const char *name[DTL_TYPES] = { "missing", "partial", "scrub",
1247 "outage" };
1248 char prefix[256];
1249
1250 spa_vdev_state_enter(spa, SCL_NONE);
1251 required = vdev_dtl_required(vd);
1252 (void) spa_vdev_state_exit(spa, NULL, 0);
1253
1254 if (indent == 0)
1255 (void) printf("\nDirty time logs:\n\n");
1256
1257 (void) printf("\t%*s%s [%s]\n", indent, "",
1258 vd->vdev_path ? vd->vdev_path :
1259 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1260 required ? "DTL-required" : "DTL-expendable");
1261
1262 for (int t = 0; t < DTL_TYPES; t++) {
1263 range_tree_t *rt = vd->vdev_dtl[t];
1264 if (range_tree_space(rt) == 0)
1265 continue;
1266 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1267 indent + 2, "", name[t]);
1268 range_tree_walk(rt, dump_dtl_seg, prefix);
1269 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1270 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1271 }
1272
1273 for (unsigned c = 0; c < vd->vdev_children; c++)
1274 dump_dtl(vd->vdev_child[c], indent + 4);
1275 }
1276
1277 static void
1278 dump_history(spa_t *spa)
1279 {
1280 nvlist_t **events = NULL;
1281 uint64_t resid, len, off = 0;
1282 uint_t num = 0;
1283 int error;
1284 time_t tsec;
1285 struct tm t;
1286 char tbuf[30];
1287 char internalstr[MAXPATHLEN];
1288
1289 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
1290 do {
1291 len = SPA_MAXBLOCKSIZE;
1292
1293 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1294 (void) fprintf(stderr, "Unable to read history: "
1295 "error %d\n", error);
1296 umem_free(buf, SPA_MAXBLOCKSIZE);
1297 return;
1298 }
1299
1300 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1301 break;
1302
1303 off -= resid;
1304 } while (len != 0);
1305 umem_free(buf, SPA_MAXBLOCKSIZE);
1306
1307 (void) printf("\nHistory:\n");
1308 for (unsigned i = 0; i < num; i++) {
1309 uint64_t time, txg, ievent;
1310 char *cmd, *intstr;
1311 boolean_t printed = B_FALSE;
1312
1313 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1314 &time) != 0)
1315 goto next;
1316 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1317 &cmd) != 0) {
1318 if (nvlist_lookup_uint64(events[i],
1319 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1320 goto next;
1321 verify(nvlist_lookup_uint64(events[i],
1322 ZPOOL_HIST_TXG, &txg) == 0);
1323 verify(nvlist_lookup_string(events[i],
1324 ZPOOL_HIST_INT_STR, &intstr) == 0);
1325 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1326 goto next;
1327
1328 (void) snprintf(internalstr,
1329 sizeof (internalstr),
1330 "[internal %s txg:%ju] %s",
1331 zfs_history_event_names[ievent], (uintmax_t)txg,
1332 intstr);
1333 cmd = internalstr;
1334 }
1335 tsec = time;
1336 (void) localtime_r(&tsec, &t);
1337 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1338 (void) printf("%s %s\n", tbuf, cmd);
1339 printed = B_TRUE;
1340
1341 next:
1342 if (dump_opt['h'] > 1) {
1343 if (!printed)
1344 (void) printf("unrecognized record:\n");
1345 dump_nvlist(events[i], 2);
1346 }
1347 }
1348 }
1349
1350 /*ARGSUSED*/
1351 static void
1352 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1353 {
1354 }
1355
1356 static uint64_t
1357 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1358 const zbookmark_phys_t *zb)
1359 {
1360 if (dnp == NULL) {
1361 ASSERT(zb->zb_level < 0);
1362 if (zb->zb_object == 0)
1363 return (zb->zb_blkid);
1364 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1365 }
1366
1367 ASSERT(zb->zb_level >= 0);
1368
1369 return ((zb->zb_blkid <<
1370 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1371 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1372 }
1373
1374 static void
1375 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1376 {
1377 const dva_t *dva = bp->blk_dva;
1378 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1379
1380 if (dump_opt['b'] >= 6) {
1381 snprintf_blkptr(blkbuf, buflen, bp);
1382 return;
1383 }
1384
1385 if (BP_IS_EMBEDDED(bp)) {
1386 (void) sprintf(blkbuf,
1387 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1388 (int)BPE_GET_ETYPE(bp),
1389 (u_longlong_t)BPE_GET_LSIZE(bp),
1390 (u_longlong_t)BPE_GET_PSIZE(bp),
1391 (u_longlong_t)bp->blk_birth);
1392 return;
1393 }
1394
1395 blkbuf[0] = '\0';
1396 for (int i = 0; i < ndvas; i++)
1397 (void) snprintf(blkbuf + strlen(blkbuf),
1398 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1399 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1400 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1401 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1402
1403 if (BP_IS_HOLE(bp)) {
1404 (void) snprintf(blkbuf + strlen(blkbuf),
1405 buflen - strlen(blkbuf),
1406 "%llxL B=%llu",
1407 (u_longlong_t)BP_GET_LSIZE(bp),
1408 (u_longlong_t)bp->blk_birth);
1409 } else {
1410 (void) snprintf(blkbuf + strlen(blkbuf),
1411 buflen - strlen(blkbuf),
1412 "%llxL/%llxP F=%llu B=%llu/%llu",
1413 (u_longlong_t)BP_GET_LSIZE(bp),
1414 (u_longlong_t)BP_GET_PSIZE(bp),
1415 (u_longlong_t)BP_GET_FILL(bp),
1416 (u_longlong_t)bp->blk_birth,
1417 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1418 }
1419 }
1420
1421 static void
1422 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1423 const dnode_phys_t *dnp)
1424 {
1425 char blkbuf[BP_SPRINTF_LEN];
1426 int l;
1427
1428 if (!BP_IS_EMBEDDED(bp)) {
1429 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1430 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1431 }
1432
1433 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1434
1435 ASSERT(zb->zb_level >= 0);
1436
1437 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1438 if (l == zb->zb_level) {
1439 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1440 } else {
1441 (void) printf(" ");
1442 }
1443 }
1444
1445 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1446 (void) printf("%s\n", blkbuf);
1447 }
1448
1449 static int
1450 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1451 blkptr_t *bp, const zbookmark_phys_t *zb)
1452 {
1453 int err = 0;
1454
1455 if (bp->blk_birth == 0)
1456 return (0);
1457
1458 print_indirect(bp, zb, dnp);
1459
1460 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1461 arc_flags_t flags = ARC_FLAG_WAIT;
1462 int i;
1463 blkptr_t *cbp;
1464 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1465 arc_buf_t *buf;
1466 uint64_t fill = 0;
1467
1468 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1469 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1470 if (err)
1471 return (err);
1472 ASSERT(buf->b_data);
1473
1474 /* recursively visit blocks below this */
1475 cbp = buf->b_data;
1476 for (i = 0; i < epb; i++, cbp++) {
1477 zbookmark_phys_t czb;
1478
1479 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1480 zb->zb_level - 1,
1481 zb->zb_blkid * epb + i);
1482 err = visit_indirect(spa, dnp, cbp, &czb);
1483 if (err)
1484 break;
1485 fill += BP_GET_FILL(cbp);
1486 }
1487 if (!err)
1488 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1489 arc_buf_destroy(buf, &buf);
1490 }
1491
1492 return (err);
1493 }
1494
1495 /*ARGSUSED*/
1496 static void
1497 dump_indirect(dnode_t *dn)
1498 {
1499 dnode_phys_t *dnp = dn->dn_phys;
1500 int j;
1501 zbookmark_phys_t czb;
1502
1503 (void) printf("Indirect blocks:\n");
1504
1505 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1506 dn->dn_object, dnp->dn_nlevels - 1, 0);
1507 for (j = 0; j < dnp->dn_nblkptr; j++) {
1508 czb.zb_blkid = j;
1509 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1510 &dnp->dn_blkptr[j], &czb);
1511 }
1512
1513 (void) printf("\n");
1514 }
1515
1516 /*ARGSUSED*/
1517 static void
1518 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1519 {
1520 dsl_dir_phys_t *dd = data;
1521 time_t crtime;
1522 char nice[32];
1523
1524 /* make sure nicenum has enough space */
1525 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
1526
1527 if (dd == NULL)
1528 return;
1529
1530 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1531
1532 crtime = dd->dd_creation_time;
1533 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1534 (void) printf("\t\thead_dataset_obj = %llu\n",
1535 (u_longlong_t)dd->dd_head_dataset_obj);
1536 (void) printf("\t\tparent_dir_obj = %llu\n",
1537 (u_longlong_t)dd->dd_parent_obj);
1538 (void) printf("\t\torigin_obj = %llu\n",
1539 (u_longlong_t)dd->dd_origin_obj);
1540 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1541 (u_longlong_t)dd->dd_child_dir_zapobj);
1542 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
1543 (void) printf("\t\tused_bytes = %s\n", nice);
1544 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
1545 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1546 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
1547 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1548 zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
1549 (void) printf("\t\tquota = %s\n", nice);
1550 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
1551 (void) printf("\t\treserved = %s\n", nice);
1552 (void) printf("\t\tprops_zapobj = %llu\n",
1553 (u_longlong_t)dd->dd_props_zapobj);
1554 (void) printf("\t\tdeleg_zapobj = %llu\n",
1555 (u_longlong_t)dd->dd_deleg_zapobj);
1556 (void) printf("\t\tflags = %llx\n",
1557 (u_longlong_t)dd->dd_flags);
1558
1559 #define DO(which) \
1560 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
1561 sizeof (nice)); \
1562 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1563 DO(HEAD);
1564 DO(SNAP);
1565 DO(CHILD);
1566 DO(CHILD_RSRV);
1567 DO(REFRSRV);
1568 #undef DO
1569 }
1570
1571 /*ARGSUSED*/
1572 static void
1573 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1574 {
1575 dsl_dataset_phys_t *ds = data;
1576 time_t crtime;
1577 char used[32], compressed[32], uncompressed[32], unique[32];
1578 char blkbuf[BP_SPRINTF_LEN];
1579
1580 /* make sure nicenum has enough space */
1581 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
1582 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
1583 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
1584 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
1585
1586 if (ds == NULL)
1587 return;
1588
1589 ASSERT(size == sizeof (*ds));
1590 crtime = ds->ds_creation_time;
1591 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
1592 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
1593 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
1594 sizeof (uncompressed));
1595 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
1596 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1597
1598 (void) printf("\t\tdir_obj = %llu\n",
1599 (u_longlong_t)ds->ds_dir_obj);
1600 (void) printf("\t\tprev_snap_obj = %llu\n",
1601 (u_longlong_t)ds->ds_prev_snap_obj);
1602 (void) printf("\t\tprev_snap_txg = %llu\n",
1603 (u_longlong_t)ds->ds_prev_snap_txg);
1604 (void) printf("\t\tnext_snap_obj = %llu\n",
1605 (u_longlong_t)ds->ds_next_snap_obj);
1606 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1607 (u_longlong_t)ds->ds_snapnames_zapobj);
1608 (void) printf("\t\tnum_children = %llu\n",
1609 (u_longlong_t)ds->ds_num_children);
1610 (void) printf("\t\tuserrefs_obj = %llu\n",
1611 (u_longlong_t)ds->ds_userrefs_obj);
1612 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1613 (void) printf("\t\tcreation_txg = %llu\n",
1614 (u_longlong_t)ds->ds_creation_txg);
1615 (void) printf("\t\tdeadlist_obj = %llu\n",
1616 (u_longlong_t)ds->ds_deadlist_obj);
1617 (void) printf("\t\tused_bytes = %s\n", used);
1618 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1619 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1620 (void) printf("\t\tunique = %s\n", unique);
1621 (void) printf("\t\tfsid_guid = %llu\n",
1622 (u_longlong_t)ds->ds_fsid_guid);
1623 (void) printf("\t\tguid = %llu\n",
1624 (u_longlong_t)ds->ds_guid);
1625 (void) printf("\t\tflags = %llx\n",
1626 (u_longlong_t)ds->ds_flags);
1627 (void) printf("\t\tnext_clones_obj = %llu\n",
1628 (u_longlong_t)ds->ds_next_clones_obj);
1629 (void) printf("\t\tprops_obj = %llu\n",
1630 (u_longlong_t)ds->ds_props_obj);
1631 (void) printf("\t\tbp = %s\n", blkbuf);
1632 }
1633
1634 /* ARGSUSED */
1635 static int
1636 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1637 {
1638 char blkbuf[BP_SPRINTF_LEN];
1639
1640 if (bp->blk_birth != 0) {
1641 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1642 (void) printf("\t%s\n", blkbuf);
1643 }
1644 return (0);
1645 }
1646
1647 static void
1648 dump_bptree(objset_t *os, uint64_t obj, const char *name)
1649 {
1650 char bytes[32];
1651 bptree_phys_t *bt;
1652 dmu_buf_t *db;
1653
1654 /* make sure nicenum has enough space */
1655 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1656
1657 if (dump_opt['d'] < 3)
1658 return;
1659
1660 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1661 bt = db->db_data;
1662 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
1663 (void) printf("\n %s: %llu datasets, %s\n",
1664 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1665 dmu_buf_rele(db, FTAG);
1666
1667 if (dump_opt['d'] < 5)
1668 return;
1669
1670 (void) printf("\n");
1671
1672 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1673 }
1674
1675 /* ARGSUSED */
1676 static int
1677 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1678 {
1679 char blkbuf[BP_SPRINTF_LEN];
1680
1681 ASSERT(bp->blk_birth != 0);
1682 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1683 (void) printf("\t%s\n", blkbuf);
1684 return (0);
1685 }
1686
1687 static void
1688 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent)
1689 {
1690 char bytes[32];
1691 char comp[32];
1692 char uncomp[32];
1693
1694 /* make sure nicenum has enough space */
1695 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1696 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1697 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1698
1699 if (dump_opt['d'] < 3)
1700 return;
1701
1702 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
1703 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1704 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
1705 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
1706 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1707 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1708 indent * 8, name,
1709 (u_longlong_t)bpo->bpo_object,
1710 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1711 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1712 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1713 bytes, comp, uncomp);
1714
1715 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1716 uint64_t subobj;
1717 bpobj_t subbpo;
1718 int error;
1719 VERIFY0(dmu_read(bpo->bpo_os,
1720 bpo->bpo_phys->bpo_subobjs,
1721 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1722 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1723 if (error != 0) {
1724 (void) printf("ERROR %u while trying to open "
1725 "subobj id %llu\n",
1726 error, (u_longlong_t)subobj);
1727 continue;
1728 }
1729 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1730 bpobj_close(&subbpo);
1731 }
1732 } else {
1733 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1734 indent * 8, name,
1735 (u_longlong_t)bpo->bpo_object,
1736 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1737 bytes);
1738 }
1739
1740 if (dump_opt['d'] < 5)
1741 return;
1742
1743
1744 if (indent == 0) {
1745 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1746 (void) printf("\n");
1747 }
1748 }
1749
1750 static void
1751 dump_deadlist(dsl_deadlist_t *dl)
1752 {
1753 dsl_deadlist_entry_t *dle;
1754 uint64_t unused;
1755 char bytes[32];
1756 char comp[32];
1757 char uncomp[32];
1758
1759 /* make sure nicenum has enough space */
1760 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1761 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1762 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1763
1764 if (dump_opt['d'] < 3)
1765 return;
1766
1767 if (dl->dl_oldfmt) {
1768 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1769 return;
1770 }
1771
1772 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
1773 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
1774 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
1775 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1776 bytes, comp, uncomp);
1777
1778 if (dump_opt['d'] < 4)
1779 return;
1780
1781 (void) printf("\n");
1782
1783 /* force the tree to be loaded */
1784 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1785
1786 for (dle = avl_first(&dl->dl_tree); dle;
1787 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1788 if (dump_opt['d'] >= 5) {
1789 char buf[128];
1790 (void) snprintf(buf, sizeof (buf),
1791 "mintxg %llu -> obj %llu",
1792 (longlong_t)dle->dle_mintxg,
1793 (longlong_t)dle->dle_bpobj.bpo_object);
1794
1795 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1796 } else {
1797 (void) printf("mintxg %llu -> obj %llu\n",
1798 (longlong_t)dle->dle_mintxg,
1799 (longlong_t)dle->dle_bpobj.bpo_object);
1800
1801 }
1802 }
1803 }
1804
1805 static avl_tree_t idx_tree;
1806 static avl_tree_t domain_tree;
1807 static boolean_t fuid_table_loaded;
1808 static objset_t *sa_os = NULL;
1809 static sa_attr_type_t *sa_attr_table = NULL;
1810
1811 static int
1812 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1813 {
1814 int err;
1815 uint64_t sa_attrs = 0;
1816 uint64_t version = 0;
1817
1818 VERIFY3P(sa_os, ==, NULL);
1819 err = dmu_objset_own(path, type, B_TRUE, tag, osp);
1820 if (err != 0) {
1821 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1822 strerror(err));
1823 return (err);
1824 }
1825
1826 if (dmu_objset_type(*osp) == DMU_OST_ZFS) {
1827 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1828 8, 1, &version);
1829 if (version >= ZPL_VERSION_SA) {
1830 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1831 8, 1, &sa_attrs);
1832 }
1833 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1834 &sa_attr_table);
1835 if (err != 0) {
1836 (void) fprintf(stderr, "sa_setup failed: %s\n",
1837 strerror(err));
1838 dmu_objset_disown(*osp, tag);
1839 *osp = NULL;
1840 }
1841 }
1842 sa_os = *osp;
1843
1844 return (0);
1845 }
1846
1847 static void
1848 close_objset(objset_t *os, void *tag)
1849 {
1850 VERIFY3P(os, ==, sa_os);
1851 if (os->os_sa != NULL)
1852 sa_tear_down(os);
1853 dmu_objset_disown(os, tag);
1854 sa_attr_table = NULL;
1855 sa_os = NULL;
1856 }
1857
1858 static void
1859 fuid_table_destroy()
1860 {
1861 if (fuid_table_loaded) {
1862 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1863 fuid_table_loaded = B_FALSE;
1864 }
1865 }
1866
1867 /*
1868 * print uid or gid information.
1869 * For normal POSIX id just the id is printed in decimal format.
1870 * For CIFS files with FUID the fuid is printed in hex followed by
1871 * the domain-rid string.
1872 */
1873 static void
1874 print_idstr(uint64_t id, const char *id_type)
1875 {
1876 if (FUID_INDEX(id)) {
1877 char *domain;
1878
1879 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1880 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1881 (u_longlong_t)id, domain, (int)FUID_RID(id));
1882 } else {
1883 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1884 }
1885
1886 }
1887
1888 static void
1889 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1890 {
1891 uint32_t uid_idx, gid_idx;
1892
1893 uid_idx = FUID_INDEX(uid);
1894 gid_idx = FUID_INDEX(gid);
1895
1896 /* Load domain table, if not already loaded */
1897 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1898 uint64_t fuid_obj;
1899
1900 /* first find the fuid object. It lives in the master node */
1901 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1902 8, 1, &fuid_obj) == 0);
1903 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1904 (void) zfs_fuid_table_load(os, fuid_obj,
1905 &idx_tree, &domain_tree);
1906 fuid_table_loaded = B_TRUE;
1907 }
1908
1909 print_idstr(uid, "uid");
1910 print_idstr(gid, "gid");
1911 }
1912
1913 /*ARGSUSED*/
1914 static void
1915 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1916 {
1917 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1918 sa_handle_t *hdl;
1919 uint64_t xattr, rdev, gen;
1920 uint64_t uid, gid, mode, fsize, parent, links;
1921 uint64_t pflags;
1922 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1923 time_t z_crtime, z_atime, z_mtime, z_ctime;
1924 sa_bulk_attr_t bulk[12];
1925 int idx = 0;
1926 int error;
1927
1928 VERIFY3P(os, ==, sa_os);
1929 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1930 (void) printf("Failed to get handle for SA znode\n");
1931 return;
1932 }
1933
1934 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1935 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1936 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1937 &links, 8);
1938 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1939 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1940 &mode, 8);
1941 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1942 NULL, &parent, 8);
1943 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1944 &fsize, 8);
1945 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1946 acctm, 16);
1947 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1948 modtm, 16);
1949 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1950 crtm, 16);
1951 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1952 chgtm, 16);
1953 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1954 &pflags, 8);
1955
1956 if (sa_bulk_lookup(hdl, bulk, idx)) {
1957 (void) sa_handle_destroy(hdl);
1958 return;
1959 }
1960
1961 z_crtime = (time_t)crtm[0];
1962 z_atime = (time_t)acctm[0];
1963 z_mtime = (time_t)modtm[0];
1964 z_ctime = (time_t)chgtm[0];
1965
1966 if (dump_opt['d'] > 4) {
1967 error = zfs_obj_to_path(os, object, path, sizeof (path));
1968 if (error != 0) {
1969 (void) snprintf(path, sizeof (path),
1970 "\?\?\?<object#%llu>", (u_longlong_t)object);
1971 }
1972 (void) printf("\tpath %s\n", path);
1973 }
1974 dump_uidgid(os, uid, gid);
1975 (void) printf("\tatime %s", ctime(&z_atime));
1976 (void) printf("\tmtime %s", ctime(&z_mtime));
1977 (void) printf("\tctime %s", ctime(&z_ctime));
1978 (void) printf("\tcrtime %s", ctime(&z_crtime));
1979 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1980 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1981 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1982 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1983 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1984 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1985 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1986 sizeof (uint64_t)) == 0)
1987 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1988 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1989 sizeof (uint64_t)) == 0)
1990 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1991 sa_handle_destroy(hdl);
1992 }
1993
1994 /*ARGSUSED*/
1995 static void
1996 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1997 {
1998 }
1999
2000 /*ARGSUSED*/
2001 static void
2002 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
2003 {
2004 }
2005
2006 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
2007 dump_none, /* unallocated */
2008 dump_zap, /* object directory */
2009 dump_uint64, /* object array */
2010 dump_none, /* packed nvlist */
2011 dump_packed_nvlist, /* packed nvlist size */
2012 dump_none, /* bpobj */
2013 dump_bpobj, /* bpobj header */
2014 dump_none, /* SPA space map header */
2015 dump_none, /* SPA space map */
2016 dump_none, /* ZIL intent log */
2017 dump_dnode, /* DMU dnode */
2018 dump_dmu_objset, /* DMU objset */
2019 dump_dsl_dir, /* DSL directory */
2020 dump_zap, /* DSL directory child map */
2021 dump_zap, /* DSL dataset snap map */
2022 dump_zap, /* DSL props */
2023 dump_dsl_dataset, /* DSL dataset */
2024 dump_znode, /* ZFS znode */
2025 dump_acl, /* ZFS V0 ACL */
2026 dump_uint8, /* ZFS plain file */
2027 dump_zpldir, /* ZFS directory */
2028 dump_zap, /* ZFS master node */
2029 dump_zap, /* ZFS delete queue */
2030 dump_uint8, /* zvol object */
2031 dump_zap, /* zvol prop */
2032 dump_uint8, /* other uint8[] */
2033 dump_uint64, /* other uint64[] */
2034 dump_zap, /* other ZAP */
2035 dump_zap, /* persistent error log */
2036 dump_uint8, /* SPA history */
2037 dump_history_offsets, /* SPA history offsets */
2038 dump_zap, /* Pool properties */
2039 dump_zap, /* DSL permissions */
2040 dump_acl, /* ZFS ACL */
2041 dump_uint8, /* ZFS SYSACL */
2042 dump_none, /* FUID nvlist */
2043 dump_packed_nvlist, /* FUID nvlist size */
2044 dump_zap, /* DSL dataset next clones */
2045 dump_zap, /* DSL scrub queue */
2046 dump_zap, /* ZFS user/group used */
2047 dump_zap, /* ZFS user/group quota */
2048 dump_zap, /* snapshot refcount tags */
2049 dump_ddt_zap, /* DDT ZAP object */
2050 dump_zap, /* DDT statistics */
2051 dump_znode, /* SA object */
2052 dump_zap, /* SA Master Node */
2053 dump_sa_attrs, /* SA attribute registration */
2054 dump_sa_layouts, /* SA attribute layouts */
2055 dump_zap, /* DSL scrub translations */
2056 dump_none, /* fake dedup BP */
2057 dump_zap, /* deadlist */
2058 dump_none, /* deadlist hdr */
2059 dump_zap, /* dsl clones */
2060 dump_bpobj_subobjs, /* bpobj subobjs */
2061 dump_unknown, /* Unknown type, must be last */
2062 };
2063
2064 static void
2065 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
2066 {
2067 dmu_buf_t *db = NULL;
2068 dmu_object_info_t doi;
2069 dnode_t *dn;
2070 void *bonus = NULL;
2071 size_t bsize = 0;
2072 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
2073 char bonus_size[32];
2074 char aux[50];
2075 int error;
2076
2077 /* make sure nicenum has enough space */
2078 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
2079 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
2080 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
2081 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
2082 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
2083
2084 if (*print_header) {
2085 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
2086 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
2087 "%full", "type");
2088 *print_header = 0;
2089 }
2090
2091 if (object == 0) {
2092 dn = DMU_META_DNODE(os);
2093 } else {
2094 error = dmu_bonus_hold(os, object, FTAG, &db);
2095 if (error)
2096 fatal("dmu_bonus_hold(%llu) failed, errno %u",
2097 object, error);
2098 bonus = db->db_data;
2099 bsize = db->db_size;
2100 dn = DB_DNODE((dmu_buf_impl_t *)db);
2101 }
2102 dmu_object_info_from_dnode(dn, &doi);
2103
2104 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
2105 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
2106 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
2107 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
2108 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
2109 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
2110 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
2111 doi.doi_max_offset);
2112
2113 aux[0] = '\0';
2114
2115 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
2116 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
2117 ZDB_CHECKSUM_NAME(doi.doi_checksum));
2118 }
2119
2120 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
2121 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
2122 ZDB_COMPRESS_NAME(doi.doi_compress));
2123 }
2124
2125 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
2126 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
2127 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
2128
2129 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
2130 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
2131 "", "", "", "", "", bonus_size, "bonus",
2132 ZDB_OT_NAME(doi.doi_bonus_type));
2133 }
2134
2135 if (verbosity >= 4) {
2136 (void) printf("\tdnode flags: %s%s%s\n",
2137 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
2138 "USED_BYTES " : "",
2139 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
2140 "USERUSED_ACCOUNTED " : "",
2141 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
2142 "SPILL_BLKPTR" : "");
2143 (void) printf("\tdnode maxblkid: %llu\n",
2144 (longlong_t)dn->dn_phys->dn_maxblkid);
2145
2146 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
2147 bonus, bsize);
2148 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
2149 *print_header = 1;
2150 }
2151
2152 if (verbosity >= 5)
2153 dump_indirect(dn);
2154
2155 if (verbosity >= 5) {
2156 /*
2157 * Report the list of segments that comprise the object.
2158 */
2159 uint64_t start = 0;
2160 uint64_t end;
2161 uint64_t blkfill = 1;
2162 int minlvl = 1;
2163
2164 if (dn->dn_type == DMU_OT_DNODE) {
2165 minlvl = 0;
2166 blkfill = DNODES_PER_BLOCK;
2167 }
2168
2169 for (;;) {
2170 char segsize[32];
2171 /* make sure nicenum has enough space */
2172 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
2173 error = dnode_next_offset(dn,
2174 0, &start, minlvl, blkfill, 0);
2175 if (error)
2176 break;
2177 end = start;
2178 error = dnode_next_offset(dn,
2179 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
2180 zdb_nicenum(end - start, segsize, sizeof (segsize));
2181 (void) printf("\t\tsegment [%016llx, %016llx)"
2182 " size %5s\n", (u_longlong_t)start,
2183 (u_longlong_t)end, segsize);
2184 if (error)
2185 break;
2186 start = end;
2187 }
2188 }
2189
2190 if (db != NULL)
2191 dmu_buf_rele(db, FTAG);
2192 }
2193
2194 static const char *objset_types[DMU_OST_NUMTYPES] = {
2195 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
2196
2197 static void
2198 dump_dir(objset_t *os)
2199 {
2200 dmu_objset_stats_t dds;
2201 uint64_t object, object_count;
2202 uint64_t refdbytes, usedobjs, scratch;
2203 char numbuf[32];
2204 char blkbuf[BP_SPRINTF_LEN + 20];
2205 char osname[ZFS_MAX_DATASET_NAME_LEN];
2206 const char *type = "UNKNOWN";
2207 int verbosity = dump_opt['d'];
2208 int print_header = 1;
2209 unsigned i;
2210 int error;
2211
2212 /* make sure nicenum has enough space */
2213 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
2214
2215 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
2216 dmu_objset_fast_stat(os, &dds);
2217 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
2218
2219 if (dds.dds_type < DMU_OST_NUMTYPES)
2220 type = objset_types[dds.dds_type];
2221
2222 if (dds.dds_type == DMU_OST_META) {
2223 dds.dds_creation_txg = TXG_INITIAL;
2224 usedobjs = BP_GET_FILL(os->os_rootbp);
2225 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
2226 dd_used_bytes;
2227 } else {
2228 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
2229 }
2230
2231 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
2232
2233 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
2234
2235 if (verbosity >= 4) {
2236 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2237 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2238 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2239 } else {
2240 blkbuf[0] = '\0';
2241 }
2242
2243 dmu_objset_name(os, osname);
2244
2245 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2246 "%s, %llu objects%s\n",
2247 osname, type, (u_longlong_t)dmu_objset_id(os),
2248 (u_longlong_t)dds.dds_creation_txg,
2249 numbuf, (u_longlong_t)usedobjs, blkbuf);
2250
2251 if (zopt_objects != 0) {
2252 for (i = 0; i < zopt_objects; i++)
2253 dump_object(os, zopt_object[i], verbosity,
2254 &print_header);
2255 (void) printf("\n");
2256 return;
2257 }
2258
2259 if (dump_opt['i'] != 0 || verbosity >= 2)
2260 dump_intent_log(dmu_objset_zil(os));
2261
2262 if (dmu_objset_ds(os) != NULL) {
2263 dsl_dataset_t *ds = dmu_objset_ds(os);
2264 dump_deadlist(&ds->ds_deadlist);
2265
2266 if (dsl_dataset_remap_deadlist_exists(ds)) {
2267 (void) printf("ds_remap_deadlist:\n");
2268 dump_deadlist(&ds->ds_remap_deadlist);
2269 }
2270 }
2271
2272 if (verbosity < 2)
2273 return;
2274
2275 if (BP_IS_HOLE(os->os_rootbp))
2276 return;
2277
2278 dump_object(os, 0, verbosity, &print_header);
2279 object_count = 0;
2280 if (DMU_USERUSED_DNODE(os) != NULL &&
2281 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2282 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
2283 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
2284 }
2285
2286 object = 0;
2287 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2288 dump_object(os, object, verbosity, &print_header);
2289 object_count++;
2290 }
2291
2292 ASSERT3U(object_count, ==, usedobjs);
2293
2294 (void) printf("\n");
2295
2296 if (error != ESRCH) {
2297 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2298 abort();
2299 }
2300 }
2301
2302 static void
2303 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2304 {
2305 time_t timestamp = ub->ub_timestamp;
2306
2307 (void) printf("%s", header ? header : "");
2308 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2309 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2310 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2311 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2312 (void) printf("\ttimestamp = %llu UTC = %s",
2313 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2314 if (dump_opt['u'] >= 3) {
2315 char blkbuf[BP_SPRINTF_LEN];
2316 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2317 (void) printf("\trootbp = %s\n", blkbuf);
2318 }
2319 (void) printf("\tcheckpoint_txg = %llu\n",
2320 (u_longlong_t)ub->ub_checkpoint_txg);
2321 (void) printf("%s", footer ? footer : "");
2322 }
2323
2324 static void
2325 dump_config(spa_t *spa)
2326 {
2327 dmu_buf_t *db;
2328 size_t nvsize = 0;
2329 int error = 0;
2330
2331
2332 error = dmu_bonus_hold(spa->spa_meta_objset,
2333 spa->spa_config_object, FTAG, &db);
2334
2335 if (error == 0) {
2336 nvsize = *(uint64_t *)db->db_data;
2337 dmu_buf_rele(db, FTAG);
2338
2339 (void) printf("\nMOS Configuration:\n");
2340 dump_packed_nvlist(spa->spa_meta_objset,
2341 spa->spa_config_object, (void *)&nvsize, 1);
2342 } else {
2343 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2344 (u_longlong_t)spa->spa_config_object, error);
2345 }
2346 }
2347
2348 static void
2349 dump_cachefile(const char *cachefile)
2350 {
2351 int fd;
2352 struct stat64 statbuf;
2353 char *buf;
2354 nvlist_t *config;
2355
2356 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2357 (void) printf("cannot open '%s': %s\n", cachefile,
2358 strerror(errno));
2359 exit(1);
2360 }
2361
2362 if (fstat64(fd, &statbuf) != 0) {
2363 (void) printf("failed to stat '%s': %s\n", cachefile,
2364 strerror(errno));
2365 exit(1);
2366 }
2367
2368 if ((buf = malloc(statbuf.st_size)) == NULL) {
2369 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2370 (u_longlong_t)statbuf.st_size);
2371 exit(1);
2372 }
2373
2374 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2375 (void) fprintf(stderr, "failed to read %llu bytes\n",
2376 (u_longlong_t)statbuf.st_size);
2377 exit(1);
2378 }
2379
2380 (void) close(fd);
2381
2382 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2383 (void) fprintf(stderr, "failed to unpack nvlist\n");
2384 exit(1);
2385 }
2386
2387 free(buf);
2388
2389 dump_nvlist(config, 0);
2390
2391 nvlist_free(config);
2392 }
2393
2394 #define ZDB_MAX_UB_HEADER_SIZE 32
2395
2396 static void
2397 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2398 {
2399 vdev_t vd;
2400 vdev_t *vdp = &vd;
2401 char header[ZDB_MAX_UB_HEADER_SIZE];
2402
2403 vd.vdev_ashift = ashift;
2404 vdp->vdev_top = vdp;
2405
2406 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2407 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2408 uberblock_t *ub = (void *)((char *)lbl + uoff);
2409
2410 if (uberblock_verify(ub))
2411 continue;
2412 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2413 "Uberblock[%d]\n", i);
2414 dump_uberblock(ub, header, "");
2415 }
2416 }
2417
2418 static char curpath[PATH_MAX];
2419
2420 /*
2421 * Iterate through the path components, recursively passing
2422 * current one's obj and remaining path until we find the obj
2423 * for the last one.
2424 */
2425 static int
2426 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2427 {
2428 int err;
2429 int header = 1;
2430 uint64_t child_obj;
2431 char *s;
2432 dmu_buf_t *db;
2433 dmu_object_info_t doi;
2434
2435 if ((s = strchr(name, '/')) != NULL)
2436 *s = '\0';
2437 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2438
2439 (void) strlcat(curpath, name, sizeof (curpath));
2440
2441 if (err != 0) {
2442 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2443 curpath, strerror(err));
2444 return (err);
2445 }
2446
2447 child_obj = ZFS_DIRENT_OBJ(child_obj);
2448 err = sa_buf_hold(os, child_obj, FTAG, &db);
2449 if (err != 0) {
2450 (void) fprintf(stderr,
2451 "failed to get SA dbuf for obj %llu: %s\n",
2452 (u_longlong_t)child_obj, strerror(err));
2453 return (EINVAL);
2454 }
2455 dmu_object_info_from_db(db, &doi);
2456 sa_buf_rele(db, FTAG);
2457
2458 if (doi.doi_bonus_type != DMU_OT_SA &&
2459 doi.doi_bonus_type != DMU_OT_ZNODE) {
2460 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2461 doi.doi_bonus_type, (u_longlong_t)child_obj);
2462 return (EINVAL);
2463 }
2464
2465 if (dump_opt['v'] > 6) {
2466 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2467 (u_longlong_t)child_obj, curpath, doi.doi_type,
2468 doi.doi_bonus_type);
2469 }
2470
2471 (void) strlcat(curpath, "/", sizeof (curpath));
2472
2473 switch (doi.doi_type) {
2474 case DMU_OT_DIRECTORY_CONTENTS:
2475 if (s != NULL && *(s + 1) != '\0')
2476 return (dump_path_impl(os, child_obj, s + 1));
2477 /*FALLTHROUGH*/
2478 case DMU_OT_PLAIN_FILE_CONTENTS:
2479 dump_object(os, child_obj, dump_opt['v'], &header);
2480 return (0);
2481 default:
2482 (void) fprintf(stderr, "object %llu has non-file/directory "
2483 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2484 break;
2485 }
2486
2487 return (EINVAL);
2488 }
2489
2490 /*
2491 * Dump the blocks for the object specified by path inside the dataset.
2492 */
2493 static int
2494 dump_path(char *ds, char *path)
2495 {
2496 int err;
2497 objset_t *os;
2498 uint64_t root_obj;
2499
2500 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2501 if (err != 0)
2502 return (err);
2503
2504 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2505 if (err != 0) {
2506 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2507 strerror(err));
2508 dmu_objset_disown(os, FTAG);
2509 return (EINVAL);
2510 }
2511
2512 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2513
2514 err = dump_path_impl(os, root_obj, path);
2515
2516 close_objset(os, FTAG);
2517 return (err);
2518 }
2519
2520 static int
2521 dump_label(const char *dev)
2522 {
2523 int fd;
2524 vdev_label_t label;
2525 char path[MAXPATHLEN];
2526 char *buf = label.vl_vdev_phys.vp_nvlist;
2527 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2528 struct stat64 statbuf;
2529 uint64_t psize, ashift;
2530 boolean_t label_found = B_FALSE;
2531
2532 (void) strlcpy(path, dev, sizeof (path));
2533 if (dev[0] == '/') {
2534 if (strncmp(dev, ZFS_DISK_ROOTD,
2535 strlen(ZFS_DISK_ROOTD)) == 0) {
2536 (void) snprintf(path, sizeof (path), "%s%s",
2537 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD));
2538 }
2539 } else if (stat64(path, &statbuf) != 0) {
2540 char *s;
2541
2542 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD,
2543 dev);
2544 if (((s = strrchr(dev, 's')) == NULL &&
2545 (s = strchr(dev, 'p')) == NULL) ||
2546 !isdigit(*(s + 1)))
2547 (void) strlcat(path, "s0", sizeof (path));
2548 }
2549
2550 if ((fd = open64(path, O_RDONLY)) < 0) {
2551 (void) fprintf(stderr, "cannot open '%s': %s\n", path,
2552 strerror(errno));
2553 exit(1);
2554 }
2555
2556 if (fstat64(fd, &statbuf) != 0) {
2557 (void) fprintf(stderr, "failed to stat '%s': %s\n", path,
2558 strerror(errno));
2559 (void) close(fd);
2560 exit(1);
2561 }
2562
2563 if (S_ISBLK(statbuf.st_mode)) {
2564 (void) fprintf(stderr,
2565 "cannot use '%s': character device required\n", path);
2566 (void) close(fd);
2567 exit(1);
2568 }
2569
2570 psize = statbuf.st_size;
2571 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2572
2573 for (int l = 0; l < VDEV_LABELS; l++) {
2574 nvlist_t *config = NULL;
2575
2576 if (!dump_opt['q']) {
2577 (void) printf("------------------------------------\n");
2578 (void) printf("LABEL %d\n", l);
2579 (void) printf("------------------------------------\n");
2580 }
2581
2582 if (pread64(fd, &label, sizeof (label),
2583 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2584 if (!dump_opt['q'])
2585 (void) printf("failed to read label %d\n", l);
2586 continue;
2587 }
2588
2589 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2590 if (!dump_opt['q'])
2591 (void) printf("failed to unpack label %d\n", l);
2592 ashift = SPA_MINBLOCKSHIFT;
2593 } else {
2594 nvlist_t *vdev_tree = NULL;
2595
2596 if (!dump_opt['q'])
2597 dump_nvlist(config, 4);
2598 if ((nvlist_lookup_nvlist(config,
2599 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2600 (nvlist_lookup_uint64(vdev_tree,
2601 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2602 ashift = SPA_MINBLOCKSHIFT;
2603 nvlist_free(config);
2604 label_found = B_TRUE;
2605 }
2606 if (dump_opt['u'])
2607 dump_label_uberblocks(&label, ashift);
2608 }
2609
2610 (void) close(fd);
2611
2612 return (label_found ? 0 : 2);
2613 }
2614
2615 static uint64_t dataset_feature_count[SPA_FEATURES];
2616 static uint64_t remap_deadlist_count = 0;
2617
2618 /*ARGSUSED*/
2619 static int
2620 dump_one_dir(const char *dsname, void *arg)
2621 {
2622 int error;
2623 objset_t *os;
2624
2625 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
2626 if (error != 0)
2627 return (0);
2628
2629 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
2630 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
2631 continue;
2632 ASSERT(spa_feature_table[f].fi_flags &
2633 ZFEATURE_FLAG_PER_DATASET);
2634 dataset_feature_count[f]++;
2635 }
2636
2637 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) {
2638 remap_deadlist_count++;
2639 }
2640
2641 dump_dir(os);
2642 close_objset(os, FTAG);
2643 fuid_table_destroy();
2644 return (0);
2645 }
2646
2647 /*
2648 * Block statistics.
2649 */
2650 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2651 typedef struct zdb_blkstats {
2652 uint64_t zb_asize;
2653 uint64_t zb_lsize;
2654 uint64_t zb_psize;
2655 uint64_t zb_count;
2656 uint64_t zb_gangs;
2657 uint64_t zb_ditto_samevdev;
2658 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2659 } zdb_blkstats_t;
2660
2661 /*
2662 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2663 */
2664 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2665 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2666 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2667 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2668
2669 static const char *zdb_ot_extname[] = {
2670 "deferred free",
2671 "dedup ditto",
2672 "other",
2673 "Total",
2674 };
2675
2676 #define ZB_TOTAL DN_MAX_LEVELS
2677
2678 typedef struct zdb_cb {
2679 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2680 uint64_t zcb_removing_size;
2681 uint64_t zcb_checkpoint_size;
2682 uint64_t zcb_dedup_asize;
2683 uint64_t zcb_dedup_blocks;
2684 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2685 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2686 [BPE_PAYLOAD_SIZE];
2687 uint64_t zcb_start;
2688 hrtime_t zcb_lastprint;
2689 uint64_t zcb_totalasize;
2690 uint64_t zcb_errors[256];
2691 int zcb_readfails;
2692 int zcb_haderrors;
2693 spa_t *zcb_spa;
2694 uint32_t **zcb_vd_obsolete_counts;
2695 } zdb_cb_t;
2696
2697 static void
2698 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2699 dmu_object_type_t type)
2700 {
2701 uint64_t refcnt = 0;
2702
2703 ASSERT(type < ZDB_OT_TOTAL);
2704
2705 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2706 return;
2707
2708 for (int i = 0; i < 4; i++) {
2709 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2710 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2711 int equal;
2712 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2713
2714 zb->zb_asize += BP_GET_ASIZE(bp);
2715 zb->zb_lsize += BP_GET_LSIZE(bp);
2716 zb->zb_psize += BP_GET_PSIZE(bp);
2717 zb->zb_count++;
2718
2719 /*
2720 * The histogram is only big enough to record blocks up to
2721 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2722 * "other", bucket.
2723 */
2724 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2725 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2726 zb->zb_psize_histogram[idx]++;
2727
2728 zb->zb_gangs += BP_COUNT_GANG(bp);
2729
2730 switch (BP_GET_NDVAS(bp)) {
2731 case 2:
2732 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2733 DVA_GET_VDEV(&bp->blk_dva[1]))
2734 zb->zb_ditto_samevdev++;
2735 break;
2736 case 3:
2737 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2738 DVA_GET_VDEV(&bp->blk_dva[1])) +
2739 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2740 DVA_GET_VDEV(&bp->blk_dva[2])) +
2741 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2742 DVA_GET_VDEV(&bp->blk_dva[2]));
2743 if (equal != 0)
2744 zb->zb_ditto_samevdev++;
2745 break;
2746 }
2747
2748 }
2749
2750 if (BP_IS_EMBEDDED(bp)) {
2751 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2752 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2753 [BPE_GET_PSIZE(bp)]++;
2754 return;
2755 }
2756
2757 if (dump_opt['L'])
2758 return;
2759
2760 if (BP_GET_DEDUP(bp)) {
2761 ddt_t *ddt;
2762 ddt_entry_t *dde;
2763
2764 ddt = ddt_select(zcb->zcb_spa, bp);
2765 ddt_enter(ddt);
2766 dde = ddt_lookup(ddt, bp, B_FALSE);
2767
2768 if (dde == NULL) {
2769 refcnt = 0;
2770 } else {
2771 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2772 ddt_phys_decref(ddp);
2773 refcnt = ddp->ddp_refcnt;
2774 if (ddt_phys_total_refcnt(dde) == 0)
2775 ddt_remove(ddt, dde);
2776 }
2777 ddt_exit(ddt);
2778 }
2779
2780 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2781 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa),
2782 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2783 }
2784
2785 static void
2786 zdb_blkptr_done(zio_t *zio)
2787 {
2788 spa_t *spa = zio->io_spa;
2789 blkptr_t *bp = zio->io_bp;
2790 int ioerr = zio->io_error;
2791 zdb_cb_t *zcb = zio->io_private;
2792 zbookmark_phys_t *zb = &zio->io_bookmark;
2793
2794 abd_free(zio->io_abd);
2795
2796 mutex_enter(&spa->spa_scrub_lock);
2797 spa->spa_scrub_inflight--;
2798 cv_broadcast(&spa->spa_scrub_io_cv);
2799
2800 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2801 char blkbuf[BP_SPRINTF_LEN];
2802
2803 zcb->zcb_haderrors = 1;
2804 zcb->zcb_errors[ioerr]++;
2805
2806 if (dump_opt['b'] >= 2)
2807 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2808 else
2809 blkbuf[0] = '\0';
2810
2811 (void) printf("zdb_blkptr_cb: "
2812 "Got error %d reading "
2813 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2814 ioerr,
2815 (u_longlong_t)zb->zb_objset,
2816 (u_longlong_t)zb->zb_object,
2817 (u_longlong_t)zb->zb_level,
2818 (u_longlong_t)zb->zb_blkid,
2819 blkbuf);
2820 }
2821 mutex_exit(&spa->spa_scrub_lock);
2822 }
2823
2824 static int
2825 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2826 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2827 {
2828 zdb_cb_t *zcb = arg;
2829 dmu_object_type_t type;
2830 boolean_t is_metadata;
2831
2832 if (bp == NULL)
2833 return (0);
2834
2835 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2836 char blkbuf[BP_SPRINTF_LEN];
2837 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2838 (void) printf("objset %llu object %llu "
2839 "level %lld offset 0x%llx %s\n",
2840 (u_longlong_t)zb->zb_objset,
2841 (u_longlong_t)zb->zb_object,
2842 (longlong_t)zb->zb_level,
2843 (u_longlong_t)blkid2offset(dnp, bp, zb),
2844 blkbuf);
2845 }
2846
2847 if (BP_IS_HOLE(bp))
2848 return (0);
2849
2850 type = BP_GET_TYPE(bp);
2851
2852 zdb_count_block(zcb, zilog, bp,
2853 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2854
2855 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2856
2857 if (!BP_IS_EMBEDDED(bp) &&
2858 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2859 size_t size = BP_GET_PSIZE(bp);
2860 abd_t *abd = abd_alloc(size, B_FALSE);
2861 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2862
2863 /* If it's an intent log block, failure is expected. */
2864 if (zb->zb_level == ZB_ZIL_LEVEL)
2865 flags |= ZIO_FLAG_SPECULATIVE;
2866
2867 mutex_enter(&spa->spa_scrub_lock);
2868 while (spa->spa_scrub_inflight > max_inflight)
2869 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2870 spa->spa_scrub_inflight++;
2871 mutex_exit(&spa->spa_scrub_lock);
2872
2873 zio_nowait(zio_read(NULL, spa, bp, abd, size,
2874 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2875 }
2876
2877 zcb->zcb_readfails = 0;
2878
2879 /* only call gethrtime() every 100 blocks */
2880 static int iters;
2881 if (++iters > 100)
2882 iters = 0;
2883 else
2884 return (0);
2885
2886 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2887 uint64_t now = gethrtime();
2888 char buf[10];
2889 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2890 int kb_per_sec =
2891 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2892 int sec_remaining =
2893 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2894
2895 /* make sure nicenum has enough space */
2896 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
2897
2898 zfs_nicenum(bytes, buf, sizeof (buf));
2899 (void) fprintf(stderr,
2900 "\r%5s completed (%4dMB/s) "
2901 "estimated time remaining: %uhr %02umin %02usec ",
2902 buf, kb_per_sec / 1024,
2903 sec_remaining / 60 / 60,
2904 sec_remaining / 60 % 60,
2905 sec_remaining % 60);
2906
2907 zcb->zcb_lastprint = now;
2908 }
2909
2910 return (0);
2911 }
2912
2913 static void
2914 zdb_leak(void *arg, uint64_t start, uint64_t size)
2915 {
2916 vdev_t *vd = arg;
2917
2918 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2919 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2920 }
2921
2922 static metaslab_ops_t zdb_metaslab_ops = {
2923 NULL /* alloc */
2924 };
2925
2926 static void
2927 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2928 {
2929 ddt_bookmark_t ddb;
2930 ddt_entry_t dde;
2931 int error;
2932
2933 bzero(&ddb, sizeof (ddb));
2934 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2935 blkptr_t blk;
2936 ddt_phys_t *ddp = dde.dde_phys;
2937
2938 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2939 return;
2940
2941 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2942
2943 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2944 if (ddp->ddp_phys_birth == 0)
2945 continue;
2946 ddt_bp_create(ddb.ddb_checksum,
2947 &dde.dde_key, ddp, &blk);
2948 if (p == DDT_PHYS_DITTO) {
2949 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2950 } else {
2951 zcb->zcb_dedup_asize +=
2952 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2953 zcb->zcb_dedup_blocks++;
2954 }
2955 }
2956 if (!dump_opt['L']) {
2957 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2958 ddt_enter(ddt);
2959 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2960 ddt_exit(ddt);
2961 }
2962 }
2963
2964 ASSERT(error == ENOENT);
2965 }
2966
2967 /* ARGSUSED */
2968 static void
2969 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
2970 uint64_t size, void *arg)
2971 {
2972 /*
2973 * This callback was called through a remap from
2974 * a device being removed. Therefore, the vdev that
2975 * this callback is applied to is a concrete
2976 * vdev.
2977 */
2978 ASSERT(vdev_is_concrete(vd));
2979
2980 VERIFY0(metaslab_claim_impl(vd, offset, size,
2981 spa_min_claim_txg(vd->vdev_spa)));
2982 }
2983
2984 static void
2985 claim_segment_cb(void *arg, uint64_t offset, uint64_t size)
2986 {
2987 vdev_t *vd = arg;
2988
2989 vdev_indirect_ops.vdev_op_remap(vd, offset, size,
2990 claim_segment_impl_cb, NULL);
2991 }
2992
2993 /*
2994 * After accounting for all allocated blocks that are directly referenced,
2995 * we might have missed a reference to a block from a partially complete
2996 * (and thus unused) indirect mapping object. We perform a secondary pass
2997 * through the metaslabs we have already mapped and claim the destination
2998 * blocks.
2999 */
3000 static void
3001 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb)
3002 {
3003 if (spa->spa_vdev_removal == NULL)
3004 return;
3005
3006 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3007
3008 spa_vdev_removal_t *svr = spa->spa_vdev_removal;
3009 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id);
3010 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3011
3012 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) {
3013 metaslab_t *msp = vd->vdev_ms[msi];
3014
3015 if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim))
3016 break;
3017
3018 ASSERT0(range_tree_space(svr->svr_allocd_segs));
3019
3020 if (msp->ms_sm != NULL) {
3021 VERIFY0(space_map_load(msp->ms_sm,
3022 svr->svr_allocd_segs, SM_ALLOC));
3023
3024 /*
3025 * Clear everything past what has been synced unless
3026 * it's past the spacemap, because we have not allocated
3027 * mappings for it yet.
3028 */
3029 uint64_t vim_max_offset =
3030 vdev_indirect_mapping_max_offset(vim);
3031 uint64_t sm_end = msp->ms_sm->sm_start +
3032 msp->ms_sm->sm_size;
3033 if (sm_end > vim_max_offset)
3034 range_tree_clear(svr->svr_allocd_segs,
3035 vim_max_offset, sm_end - vim_max_offset);
3036 }
3037
3038 zcb->zcb_removing_size +=
3039 range_tree_space(svr->svr_allocd_segs);
3040 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd);
3041 }
3042
3043 spa_config_exit(spa, SCL_CONFIG, FTAG);
3044 }
3045
3046 /* ARGSUSED */
3047 static int
3048 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
3049 {
3050 zdb_cb_t *zcb = arg;
3051 spa_t *spa = zcb->zcb_spa;
3052 vdev_t *vd;
3053 const dva_t *dva = &bp->blk_dva[0];
3054
3055 ASSERT(!dump_opt['L']);
3056 ASSERT3U(BP_GET_NDVAS(bp), ==, 1);
3057
3058 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
3059 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva));
3060 ASSERT3P(vd, !=, NULL);
3061 spa_config_exit(spa, SCL_VDEV, FTAG);
3062
3063 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0);
3064 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL);
3065
3066 vdev_indirect_mapping_increment_obsolete_count(
3067 vd->vdev_indirect_mapping,
3068 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva),
3069 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
3070
3071 return (0);
3072 }
3073
3074 static uint32_t *
3075 zdb_load_obsolete_counts(vdev_t *vd)
3076 {
3077 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3078 spa_t *spa = vd->vdev_spa;
3079 spa_condensing_indirect_phys_t *scip =
3080 &spa->spa_condensing_indirect_phys;
3081 uint32_t *counts;
3082
3083 EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL);
3084 counts = vdev_indirect_mapping_load_obsolete_counts(vim);
3085 if (vd->vdev_obsolete_sm != NULL) {
3086 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
3087 vd->vdev_obsolete_sm);
3088 }
3089 if (scip->scip_vdev == vd->vdev_id &&
3090 scip->scip_prev_obsolete_sm_object != 0) {
3091 space_map_t *prev_obsolete_sm = NULL;
3092 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset,
3093 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0));
3094 space_map_update(prev_obsolete_sm);
3095 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
3096 prev_obsolete_sm);
3097 space_map_close(prev_obsolete_sm);
3098 }
3099 return (counts);
3100 }
3101
3102 typedef struct checkpoint_sm_exclude_entry_arg {
3103 vdev_t *cseea_vd;
3104 uint64_t cseea_checkpoint_size;
3105 } checkpoint_sm_exclude_entry_arg_t;
3106
3107 static int
3108 checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg)
3109 {
3110 checkpoint_sm_exclude_entry_arg_t *cseea = arg;
3111 vdev_t *vd = cseea->cseea_vd;
3112 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift];
3113 uint64_t end = sme->sme_offset + sme->sme_run;
3114
3115 ASSERT(sme->sme_type == SM_FREE);
3116
3117 /*
3118 * Since the vdev_checkpoint_sm exists in the vdev level
3119 * and the ms_sm space maps exist in the metaslab level,
3120 * an entry in the checkpoint space map could theoretically
3121 * cross the boundaries of the metaslab that it belongs.
3122 *
3123 * In reality, because of the way that we populate and
3124 * manipulate the checkpoint's space maps currently,
3125 * there shouldn't be any entries that cross metaslabs.
3126 * Hence the assertion below.
3127 *
3128 * That said, there is no fundamental requirement that
3129 * the checkpoint's space map entries should not cross
3130 * metaslab boundaries. So if needed we could add code
3131 * that handles metaslab-crossing segments in the future.
3132 */
3133 VERIFY3U(sme->sme_offset, >=, ms->ms_start);
3134 VERIFY3U(end, <=, ms->ms_start + ms->ms_size);
3135
3136 /*
3137 * By removing the entry from the allocated segments we
3138 * also verify that the entry is there to begin with.
3139 */
3140 mutex_enter(&ms->ms_lock);
3141 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run);
3142 mutex_exit(&ms->ms_lock);
3143
3144 cseea->cseea_checkpoint_size += sme->sme_run;
3145 return (0);
3146 }
3147
3148 static void
3149 zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb)
3150 {
3151 spa_t *spa = vd->vdev_spa;
3152 space_map_t *checkpoint_sm = NULL;
3153 uint64_t checkpoint_sm_obj;
3154
3155 /*
3156 * If there is no vdev_top_zap, we are in a pool whose
3157 * version predates the pool checkpoint feature.
3158 */
3159 if (vd->vdev_top_zap == 0)
3160 return;
3161
3162 /*
3163 * If there is no reference of the vdev_checkpoint_sm in
3164 * the vdev_top_zap, then one of the following scenarios
3165 * is true:
3166 *
3167 * 1] There is no checkpoint
3168 * 2] There is a checkpoint, but no checkpointed blocks
3169 * have been freed yet
3170 * 3] The current vdev is indirect
3171 *
3172 * In these cases we return immediately.
3173 */
3174 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap,
3175 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
3176 return;
3177
3178 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap,
3179 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1,
3180 &checkpoint_sm_obj));
3181
3182 checkpoint_sm_exclude_entry_arg_t cseea;
3183 cseea.cseea_vd = vd;
3184 cseea.cseea_checkpoint_size = 0;
3185
3186 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa),
3187 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift));
3188 space_map_update(checkpoint_sm);
3189
3190 VERIFY0(space_map_iterate(checkpoint_sm,
3191 checkpoint_sm_exclude_entry_cb, &cseea));
3192 space_map_close(checkpoint_sm);
3193
3194 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size;
3195 }
3196
3197 static void
3198 zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb)
3199 {
3200 vdev_t *rvd = spa->spa_root_vdev;
3201 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
3202 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id);
3203 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb);
3204 }
3205 }
3206
3207 static void
3208 load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype)
3209 {
3210 vdev_t *rvd = spa->spa_root_vdev;
3211 for (uint64_t i = 0; i < rvd->vdev_children; i++) {
3212 vdev_t *vd = rvd->vdev_child[i];
3213
3214 ASSERT3U(i, ==, vd->vdev_id);
3215
3216 if (vd->vdev_ops == &vdev_indirect_ops)
3217 continue;
3218
3219 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
3220 metaslab_t *msp = vd->vdev_ms[m];
3221
3222 (void) fprintf(stderr,
3223 "\rloading concrete vdev %llu, "
3224 "metaslab %llu of %llu ...",
3225 (longlong_t)vd->vdev_id,
3226 (longlong_t)msp->ms_id,
3227 (longlong_t)vd->vdev_ms_count);
3228
3229 mutex_enter(&msp->ms_lock);
3230 metaslab_unload(msp);
3231
3232 /*
3233 * We don't want to spend the CPU manipulating the
3234 * size-ordered tree, so clear the range_tree ops.
3235 */
3236 msp->ms_allocatable->rt_ops = NULL;
3237
3238 if (msp->ms_sm != NULL) {
3239 VERIFY0(space_map_load(msp->ms_sm,
3240 msp->ms_allocatable, maptype));
3241 }
3242 if (!msp->ms_loaded)
3243 msp->ms_loaded = B_TRUE;
3244 mutex_exit(&msp->ms_lock);
3245 }
3246 }
3247 }
3248
3249 /*
3250 * vm_idxp is an in-out parameter which (for indirect vdevs) is the
3251 * index in vim_entries that has the first entry in this metaslab.
3252 * On return, it will be set to the first entry after this metaslab.
3253 */
3254 static void
3255 load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp,
3256 uint64_t *vim_idxp)
3257 {
3258 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3259
3260 mutex_enter(&msp->ms_lock);
3261 metaslab_unload(msp);
3262
3263 /*
3264 * We don't want to spend the CPU manipulating the
3265 * size-ordered tree, so clear the range_tree ops.
3266 */
3267 msp->ms_allocatable->rt_ops = NULL;
3268
3269 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim);
3270 (*vim_idxp)++) {
3271 vdev_indirect_mapping_entry_phys_t *vimep =
3272 &vim->vim_entries[*vim_idxp];
3273 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
3274 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst);
3275 ASSERT3U(ent_offset, >=, msp->ms_start);
3276 if (ent_offset >= msp->ms_start + msp->ms_size)
3277 break;
3278
3279 /*
3280 * Mappings do not cross metaslab boundaries,
3281 * because we create them by walking the metaslabs.
3282 */
3283 ASSERT3U(ent_offset + ent_len, <=,
3284 msp->ms_start + msp->ms_size);
3285 range_tree_add(msp->ms_allocatable, ent_offset, ent_len);
3286 }
3287
3288 if (!msp->ms_loaded)
3289 msp->ms_loaded = B_TRUE;
3290 mutex_exit(&msp->ms_lock);
3291 }
3292
3293 static void
3294 zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb)
3295 {
3296 vdev_t *rvd = spa->spa_root_vdev;
3297 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
3298 vdev_t *vd = rvd->vdev_child[c];
3299
3300 ASSERT3U(c, ==, vd->vdev_id);
3301
3302 if (vd->vdev_ops != &vdev_indirect_ops)
3303 continue;
3304
3305 /*
3306 * Note: we don't check for mapping leaks on
3307 * removing vdevs because their ms_allocatable's
3308 * are used to look for leaks in allocated space.
3309 */
3310 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd);
3311
3312 /*
3313 * Normally, indirect vdevs don't have any
3314 * metaslabs. We want to set them up for
3315 * zio_claim().
3316 */
3317 VERIFY0(vdev_metaslab_init(vd, 0));
3318
3319 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3320 uint64_t vim_idx = 0;
3321 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
3322
3323 (void) fprintf(stderr,
3324 "\rloading indirect vdev %llu, "
3325 "metaslab %llu of %llu ...",
3326 (longlong_t)vd->vdev_id,
3327 (longlong_t)vd->vdev_ms[m]->ms_id,
3328 (longlong_t)vd->vdev_ms_count);
3329
3330 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m],
3331 &vim_idx);
3332 }
3333 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim));
3334 }
3335 }
3336
3337 static void
3338 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
3339 {
3340 zcb->zcb_spa = spa;
3341
3342 if (!dump_opt['L']) {
3343 dsl_pool_t *dp = spa->spa_dsl_pool;
3344 vdev_t *rvd = spa->spa_root_vdev;
3345
3346 /*
3347 * We are going to be changing the meaning of the metaslab's
3348 * ms_allocatable. Ensure that the allocator doesn't try to
3349 * use the tree.
3350 */
3351 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
3352 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
3353
3354 zcb->zcb_vd_obsolete_counts =
3355 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *),
3356 UMEM_NOFAIL);
3357
3358 /*
3359 * For leak detection, we overload the ms_allocatable trees
3360 * to contain allocated segments instead of free segments.
3361 * As a result, we can't use the normal metaslab_load/unload
3362 * interfaces.
3363 */
3364 zdb_leak_init_prepare_indirect_vdevs(spa, zcb);
3365 load_concrete_ms_allocatable_trees(spa, SM_ALLOC);
3366
3367 /*
3368 * On load_concrete_ms_allocatable_trees() we loaded all the
3369 * allocated entries from the ms_sm to the ms_allocatable for
3370 * each metaslab. If the pool has a checkpoint or is in the
3371 * middle of discarding a checkpoint, some of these blocks
3372 * may have been freed but their ms_sm may not have been
3373 * updated because they are referenced by the checkpoint. In
3374 * order to avoid false-positives during leak-detection, we
3375 * go through the vdev's checkpoint space map and exclude all
3376 * its entries from their relevant ms_allocatable.
3377 *
3378 * We also aggregate the space held by the checkpoint and add
3379 * it to zcb_checkpoint_size.
3380 *
3381 * Note that at this point we are also verifying that all the
3382 * entries on the checkpoint_sm are marked as allocated in
3383 * the ms_sm of their relevant metaslab.
3384 * [see comment in checkpoint_sm_exclude_entry_cb()]
3385 */
3386 zdb_leak_init_exclude_checkpoint(spa, zcb);
3387
3388 /* for cleaner progress output */
3389 (void) fprintf(stderr, "\n");
3390
3391 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
3392 ASSERT(spa_feature_is_enabled(spa,
3393 SPA_FEATURE_DEVICE_REMOVAL));
3394 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj,
3395 increment_indirect_mapping_cb, zcb, NULL);
3396 }
3397 } else {
3398 /*
3399 * If leak tracing is disabled, we still need to consider
3400 * any checkpointed space in our space verification.
3401 */
3402 zcb->zcb_checkpoint_size += spa_get_checkpoint_space(spa);
3403 }
3404
3405 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3406 zdb_ddt_leak_init(spa, zcb);
3407 spa_config_exit(spa, SCL_CONFIG, FTAG);
3408 }
3409
3410 static boolean_t
3411 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb)
3412 {
3413 boolean_t leaks = B_FALSE;
3414 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3415 uint64_t total_leaked = 0;
3416
3417 ASSERT(vim != NULL);
3418
3419 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
3420 vdev_indirect_mapping_entry_phys_t *vimep =
3421 &vim->vim_entries[i];
3422 uint64_t obsolete_bytes = 0;
3423 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
3424 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];
3425
3426 /*
3427 * This is not very efficient but it's easy to
3428 * verify correctness.
3429 */
3430 for (uint64_t inner_offset = 0;
3431 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst);
3432 inner_offset += 1 << vd->vdev_ashift) {
3433 if (range_tree_contains(msp->ms_allocatable,
3434 offset + inner_offset, 1 << vd->vdev_ashift)) {
3435 obsolete_bytes += 1 << vd->vdev_ashift;
3436 }
3437 }
3438
3439 int64_t bytes_leaked = obsolete_bytes -
3440 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i];
3441 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=,
3442 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]);
3443 if (bytes_leaked != 0 &&
3444 (vdev_obsolete_counts_are_precise(vd) ||
3445 dump_opt['d'] >= 5)) {
3446 (void) printf("obsolete indirect mapping count "
3447 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n",
3448 (u_longlong_t)vd->vdev_id,
3449 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
3450 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
3451 (u_longlong_t)bytes_leaked);
3452 }
3453 total_leaked += ABS(bytes_leaked);
3454 }
3455
3456 if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) {
3457 int pct_leaked = total_leaked * 100 /
3458 vdev_indirect_mapping_bytes_mapped(vim);
3459 (void) printf("cannot verify obsolete indirect mapping "
3460 "counts of vdev %llu because precise feature was not "
3461 "enabled when it was removed: %d%% (%llx bytes) of mapping"
3462 "unreferenced\n",
3463 (u_longlong_t)vd->vdev_id, pct_leaked,
3464 (u_longlong_t)total_leaked);
3465 } else if (total_leaked > 0) {
3466 (void) printf("obsolete indirect mapping count mismatch "
3467 "for vdev %llu -- %llx total bytes mismatched\n",
3468 (u_longlong_t)vd->vdev_id,
3469 (u_longlong_t)total_leaked);
3470 leaks |= B_TRUE;
3471 }
3472
3473 vdev_indirect_mapping_free_obsolete_counts(vim,
3474 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
3475 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL;
3476
3477 return (leaks);
3478 }
3479
3480 static boolean_t
3481 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb)
3482 {
3483 boolean_t leaks = B_FALSE;
3484 if (!dump_opt['L']) {
3485 vdev_t *rvd = spa->spa_root_vdev;
3486 for (unsigned c = 0; c < rvd->vdev_children; c++) {
3487 vdev_t *vd = rvd->vdev_child[c];
3488 metaslab_group_t *mg = vd->vdev_mg;
3489
3490 if (zcb->zcb_vd_obsolete_counts[c] != NULL) {
3491 leaks |= zdb_check_for_obsolete_leaks(vd, zcb);
3492 }
3493
3494 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
3495 metaslab_t *msp = vd->vdev_ms[m];
3496 ASSERT3P(mg, ==, msp->ms_group);
3497
3498 /*
3499 * ms_allocatable has been overloaded
3500 * to contain allocated segments. Now that
3501 * we finished traversing all blocks, any
3502 * block that remains in the ms_allocatable
3503 * represents an allocated block that we
3504 * did not claim during the traversal.
3505 * Claimed blocks would have been removed
3506 * from the ms_allocatable. For indirect
3507 * vdevs, space remaining in the tree
3508 * represents parts of the mapping that are
3509 * not referenced, which is not a bug.
3510 */
3511 if (vd->vdev_ops == &vdev_indirect_ops) {
3512 range_tree_vacate(msp->ms_allocatable,
3513 NULL, NULL);
3514 } else {
3515 range_tree_vacate(msp->ms_allocatable,
3516 zdb_leak, vd);
3517 }
3518
3519 if (msp->ms_loaded) {
3520 msp->ms_loaded = B_FALSE;
3521 }
3522 }
3523 }
3524
3525 umem_free(zcb->zcb_vd_obsolete_counts,
3526 rvd->vdev_children * sizeof (uint32_t *));
3527 zcb->zcb_vd_obsolete_counts = NULL;
3528 }
3529 return (leaks);
3530 }
3531
3532 /* ARGSUSED */
3533 static int
3534 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
3535 {
3536 zdb_cb_t *zcb = arg;
3537
3538 if (dump_opt['b'] >= 5) {
3539 char blkbuf[BP_SPRINTF_LEN];
3540 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3541 (void) printf("[%s] %s\n",
3542 "deferred free", blkbuf);
3543 }
3544 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
3545 return (0);
3546 }
3547
3548 static int
3549 dump_block_stats(spa_t *spa)
3550 {
3551 zdb_cb_t zcb;
3552 zdb_blkstats_t *zb, *tzb;
3553 uint64_t norm_alloc, norm_space, total_alloc, total_found;
3554 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
3555 boolean_t leaks = B_FALSE;
3556
3557 bzero(&zcb, sizeof (zcb));
3558 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
3559 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
3560 (dump_opt['c'] == 1) ? "metadata " : "",
3561 dump_opt['c'] ? "checksums " : "",
3562 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
3563 !dump_opt['L'] ? "nothing leaked " : "");
3564
3565 /*
3566 * Load all space maps as SM_ALLOC maps, then traverse the pool
3567 * claiming each block we discover. If the pool is perfectly
3568 * consistent, the space maps will be empty when we're done.
3569 * Anything left over is a leak; any block we can't claim (because
3570 * it's not part of any space map) is a double allocation,
3571 * reference to a freed block, or an unclaimed log block.
3572 */
3573 zdb_leak_init(spa, &zcb);
3574
3575 /*
3576 * If there's a deferred-free bplist, process that first.
3577 */
3578 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
3579 count_block_cb, &zcb, NULL);
3580
3581 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3582 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
3583 count_block_cb, &zcb, NULL);
3584 }
3585
3586 zdb_claim_removing(spa, &zcb);
3587
3588 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
3589 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
3590 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
3591 &zcb, NULL));
3592 }
3593
3594 if (dump_opt['c'] > 1)
3595 flags |= TRAVERSE_PREFETCH_DATA;
3596
3597 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
3598 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
3599 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
3600
3601 /*
3602 * If we've traversed the data blocks then we need to wait for those
3603 * I/Os to complete. We leverage "The Godfather" zio to wait on
3604 * all async I/Os to complete.
3605 */
3606 if (dump_opt['c']) {
3607 for (int i = 0; i < max_ncpus; i++) {
3608 (void) zio_wait(spa->spa_async_zio_root[i]);
3609 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
3610 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
3611 ZIO_FLAG_GODFATHER);
3612 }
3613 }
3614
3615 if (zcb.zcb_haderrors) {
3616 (void) printf("\nError counts:\n\n");
3617 (void) printf("\t%5s %s\n", "errno", "count");
3618 for (int e = 0; e < 256; e++) {
3619 if (zcb.zcb_errors[e] != 0) {
3620 (void) printf("\t%5d %llu\n",
3621 e, (u_longlong_t)zcb.zcb_errors[e]);
3622 }
3623 }
3624 }
3625
3626 /*
3627 * Report any leaked segments.
3628 */
3629 leaks |= zdb_leak_fini(spa, &zcb);
3630
3631 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
3632
3633 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
3634 norm_space = metaslab_class_get_space(spa_normal_class(spa));
3635
3636 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
3637 total_found = tzb->zb_asize - zcb.zcb_dedup_asize +
3638 zcb.zcb_removing_size + zcb.zcb_checkpoint_size;
3639
3640 if (total_found == total_alloc) {
3641 if (!dump_opt['L'])
3642 (void) printf("\n\tNo leaks (block sum matches space"
3643 " maps exactly)\n");
3644 } else {
3645 (void) printf("block traversal size %llu != alloc %llu "
3646 "(%s %lld)\n",
3647 (u_longlong_t)total_found,
3648 (u_longlong_t)total_alloc,
3649 (dump_opt['L']) ? "unreachable" : "leaked",
3650 (longlong_t)(total_alloc - total_found));
3651 leaks = B_TRUE;
3652 }
3653
3654 if (tzb->zb_count == 0)
3655 return (2);
3656
3657 (void) printf("\n");
3658 (void) printf("\tbp count: %10llu\n",
3659 (u_longlong_t)tzb->zb_count);
3660 (void) printf("\tganged count: %10llu\n",
3661 (longlong_t)tzb->zb_gangs);
3662 (void) printf("\tbp logical: %10llu avg: %6llu\n",
3663 (u_longlong_t)tzb->zb_lsize,
3664 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
3665 (void) printf("\tbp physical: %10llu avg:"
3666 " %6llu compression: %6.2f\n",
3667 (u_longlong_t)tzb->zb_psize,
3668 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
3669 (double)tzb->zb_lsize / tzb->zb_psize);
3670 (void) printf("\tbp allocated: %10llu avg:"
3671 " %6llu compression: %6.2f\n",
3672 (u_longlong_t)tzb->zb_asize,
3673 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
3674 (double)tzb->zb_lsize / tzb->zb_asize);
3675 (void) printf("\tbp deduped: %10llu ref>1:"
3676 " %6llu deduplication: %6.2f\n",
3677 (u_longlong_t)zcb.zcb_dedup_asize,
3678 (u_longlong_t)zcb.zcb_dedup_blocks,
3679 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
3680 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
3681 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
3682
3683 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
3684 if (zcb.zcb_embedded_blocks[i] == 0)
3685 continue;
3686 (void) printf("\n");
3687 (void) printf("\tadditional, non-pointer bps of type %u: "
3688 "%10llu\n",
3689 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
3690
3691 if (dump_opt['b'] >= 3) {
3692 (void) printf("\t number of (compressed) bytes: "
3693 "number of bps\n");
3694 dump_histogram(zcb.zcb_embedded_histogram[i],
3695 sizeof (zcb.zcb_embedded_histogram[i]) /
3696 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
3697 }
3698 }
3699
3700 if (tzb->zb_ditto_samevdev != 0) {
3701 (void) printf("\tDittoed blocks on same vdev: %llu\n",
3702 (longlong_t)tzb->zb_ditto_samevdev);
3703 }
3704
3705 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) {
3706 vdev_t *vd = spa->spa_root_vdev->vdev_child[v];
3707 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3708
3709 if (vim == NULL) {
3710 continue;
3711 }
3712
3713 char mem[32];
3714 zdb_nicenum(vdev_indirect_mapping_num_entries(vim),
3715 mem, vdev_indirect_mapping_size(vim));
3716
3717 (void) printf("\tindirect vdev id %llu has %llu segments "
3718 "(%s in memory)\n",
3719 (longlong_t)vd->vdev_id,
3720 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem);
3721 }
3722
3723 if (dump_opt['b'] >= 2) {
3724 int l, t, level;
3725 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
3726 "\t avg\t comp\t%%Total\tType\n");
3727
3728 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
3729 char csize[32], lsize[32], psize[32], asize[32];
3730 char avg[32], gang[32];
3731 const char *typename;
3732
3733 /* make sure nicenum has enough space */
3734 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
3735 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
3736 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
3737 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
3738 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
3739 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
3740
3741 if (t < DMU_OT_NUMTYPES)
3742 typename = dmu_ot[t].ot_name;
3743 else
3744 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
3745
3746 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
3747 (void) printf("%6s\t%5s\t%5s\t%5s"
3748 "\t%5s\t%5s\t%6s\t%s\n",
3749 "-",
3750 "-",
3751 "-",
3752 "-",
3753 "-",
3754 "-",
3755 "-",
3756 typename);
3757 continue;
3758 }
3759
3760 for (l = ZB_TOTAL - 1; l >= -1; l--) {
3761 level = (l == -1 ? ZB_TOTAL : l);
3762 zb = &zcb.zcb_type[level][t];
3763
3764 if (zb->zb_asize == 0)
3765 continue;
3766
3767 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
3768 continue;
3769
3770 if (level == 0 && zb->zb_asize ==
3771 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
3772 continue;
3773
3774 zdb_nicenum(zb->zb_count, csize,
3775 sizeof (csize));
3776 zdb_nicenum(zb->zb_lsize, lsize,
3777 sizeof (lsize));
3778 zdb_nicenum(zb->zb_psize, psize,
3779 sizeof (psize));
3780 zdb_nicenum(zb->zb_asize, asize,
3781 sizeof (asize));
3782 zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
3783 sizeof (avg));
3784 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
3785
3786 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
3787 "\t%5.2f\t%6.2f\t",
3788 csize, lsize, psize, asize, avg,
3789 (double)zb->zb_lsize / zb->zb_psize,
3790 100.0 * zb->zb_asize / tzb->zb_asize);
3791
3792 if (level == ZB_TOTAL)
3793 (void) printf("%s\n", typename);
3794 else
3795 (void) printf(" L%d %s\n",
3796 level, typename);
3797
3798 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
3799 (void) printf("\t number of ganged "
3800 "blocks: %s\n", gang);
3801 }
3802
3803 if (dump_opt['b'] >= 4) {
3804 (void) printf("psize "
3805 "(in 512-byte sectors): "
3806 "number of blocks\n");
3807 dump_histogram(zb->zb_psize_histogram,
3808 PSIZE_HISTO_SIZE, 0);
3809 }
3810 }
3811 }
3812 }
3813
3814 (void) printf("\n");
3815
3816 if (leaks)
3817 return (2);
3818
3819 if (zcb.zcb_haderrors)
3820 return (3);
3821
3822 return (0);
3823 }
3824
3825 typedef struct zdb_ddt_entry {
3826 ddt_key_t zdde_key;
3827 uint64_t zdde_ref_blocks;
3828 uint64_t zdde_ref_lsize;
3829 uint64_t zdde_ref_psize;
3830 uint64_t zdde_ref_dsize;
3831 avl_node_t zdde_node;
3832 } zdb_ddt_entry_t;
3833
3834 /* ARGSUSED */
3835 static int
3836 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3837 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3838 {
3839 avl_tree_t *t = arg;
3840 avl_index_t where;
3841 zdb_ddt_entry_t *zdde, zdde_search;
3842
3843 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
3844 return (0);
3845
3846 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
3847 (void) printf("traversing objset %llu, %llu objects, "
3848 "%lu blocks so far\n",
3849 (u_longlong_t)zb->zb_objset,
3850 (u_longlong_t)BP_GET_FILL(bp),
3851 avl_numnodes(t));
3852 }
3853
3854 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
3855 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
3856 return (0);
3857
3858 ddt_key_fill(&zdde_search.zdde_key, bp);
3859
3860 zdde = avl_find(t, &zdde_search, &where);
3861
3862 if (zdde == NULL) {
3863 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
3864 zdde->zdde_key = zdde_search.zdde_key;
3865 avl_insert(t, zdde, where);
3866 }
3867
3868 zdde->zdde_ref_blocks += 1;
3869 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
3870 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
3871 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
3872
3873 return (0);
3874 }
3875
3876 static void
3877 dump_simulated_ddt(spa_t *spa)
3878 {
3879 avl_tree_t t;
3880 void *cookie = NULL;
3881 zdb_ddt_entry_t *zdde;
3882 ddt_histogram_t ddh_total;
3883 ddt_stat_t dds_total;
3884
3885 bzero(&ddh_total, sizeof (ddh_total));
3886 bzero(&dds_total, sizeof (dds_total));
3887 avl_create(&t, ddt_entry_compare,
3888 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
3889
3890 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3891
3892 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
3893 zdb_ddt_add_cb, &t);
3894
3895 spa_config_exit(spa, SCL_CONFIG, FTAG);
3896
3897 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
3898 ddt_stat_t dds;
3899 uint64_t refcnt = zdde->zdde_ref_blocks;
3900 ASSERT(refcnt != 0);
3901
3902 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
3903 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
3904 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
3905 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
3906
3907 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
3908 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
3909 dds.dds_ref_psize = zdde->zdde_ref_psize;
3910 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
3911
3912 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
3913 &dds, 0);
3914
3915 umem_free(zdde, sizeof (*zdde));
3916 }
3917
3918 avl_destroy(&t);
3919
3920 ddt_histogram_stat(&dds_total, &ddh_total);
3921
3922 (void) printf("Simulated DDT histogram:\n");
3923
3924 zpool_dump_ddt(&dds_total, &ddh_total);
3925
3926 dump_dedup_ratio(&dds_total);
3927 }
3928
3929 static int
3930 verify_device_removal_feature_counts(spa_t *spa)
3931 {
3932 uint64_t dr_feature_refcount = 0;
3933 uint64_t oc_feature_refcount = 0;
3934 uint64_t indirect_vdev_count = 0;
3935 uint64_t precise_vdev_count = 0;
3936 uint64_t obsolete_counts_object_count = 0;
3937 uint64_t obsolete_sm_count = 0;
3938 uint64_t obsolete_counts_count = 0;
3939 uint64_t scip_count = 0;
3940 uint64_t obsolete_bpobj_count = 0;
3941 int ret = 0;
3942
3943 spa_condensing_indirect_phys_t *scip =
3944 &spa->spa_condensing_indirect_phys;
3945 if (scip->scip_next_mapping_object != 0) {
3946 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev];
3947 ASSERT(scip->scip_prev_obsolete_sm_object != 0);
3948 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops);
3949
3950 (void) printf("Condensing indirect vdev %llu: new mapping "
3951 "object %llu, prev obsolete sm %llu\n",
3952 (u_longlong_t)scip->scip_vdev,
3953 (u_longlong_t)scip->scip_next_mapping_object,
3954 (u_longlong_t)scip->scip_prev_obsolete_sm_object);
3955 if (scip->scip_prev_obsolete_sm_object != 0) {
3956 space_map_t *prev_obsolete_sm = NULL;
3957 VERIFY0(space_map_open(&prev_obsolete_sm,
3958 spa->spa_meta_objset,
3959 scip->scip_prev_obsolete_sm_object,
3960 0, vd->vdev_asize, 0));
3961 space_map_update(prev_obsolete_sm);
3962 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm);
3963 (void) printf("\n");
3964 space_map_close(prev_obsolete_sm);
3965 }
3966
3967 scip_count += 2;
3968 }
3969
3970 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) {
3971 vdev_t *vd = spa->spa_root_vdev->vdev_child[i];
3972 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
3973
3974 if (vic->vic_mapping_object != 0) {
3975 ASSERT(vd->vdev_ops == &vdev_indirect_ops ||
3976 vd->vdev_removing);
3977 indirect_vdev_count++;
3978
3979 if (vd->vdev_indirect_mapping->vim_havecounts) {
3980 obsolete_counts_count++;
3981 }
3982 }
3983 if (vdev_obsolete_counts_are_precise(vd)) {
3984 ASSERT(vic->vic_mapping_object != 0);
3985 precise_vdev_count++;
3986 }
3987 if (vdev_obsolete_sm_object(vd) != 0) {
3988 ASSERT(vic->vic_mapping_object != 0);
3989 obsolete_sm_count++;
3990 }
3991 }
3992
3993 (void) feature_get_refcount(spa,
3994 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL],
3995 &dr_feature_refcount);
3996 (void) feature_get_refcount(spa,
3997 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS],
3998 &oc_feature_refcount);
3999
4000 if (dr_feature_refcount != indirect_vdev_count) {
4001 ret = 1;
4002 (void) printf("Number of indirect vdevs (%llu) " \
4003 "does not match feature count (%llu)\n",
4004 (u_longlong_t)indirect_vdev_count,
4005 (u_longlong_t)dr_feature_refcount);
4006 } else {
4007 (void) printf("Verified device_removal feature refcount " \
4008 "of %llu is correct\n",
4009 (u_longlong_t)dr_feature_refcount);
4010 }
4011
4012 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT,
4013 DMU_POOL_OBSOLETE_BPOBJ) == 0) {
4014 obsolete_bpobj_count++;
4015 }
4016
4017
4018 obsolete_counts_object_count = precise_vdev_count;
4019 obsolete_counts_object_count += obsolete_sm_count;
4020 obsolete_counts_object_count += obsolete_counts_count;
4021 obsolete_counts_object_count += scip_count;
4022 obsolete_counts_object_count += obsolete_bpobj_count;
4023 obsolete_counts_object_count += remap_deadlist_count;
4024
4025 if (oc_feature_refcount != obsolete_counts_object_count) {
4026 ret = 1;
4027 (void) printf("Number of obsolete counts objects (%llu) " \
4028 "does not match feature count (%llu)\n",
4029 (u_longlong_t)obsolete_counts_object_count,
4030 (u_longlong_t)oc_feature_refcount);
4031 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu "
4032 "ob:%llu rd:%llu\n",
4033 (u_longlong_t)precise_vdev_count,
4034 (u_longlong_t)obsolete_sm_count,
4035 (u_longlong_t)obsolete_counts_count,
4036 (u_longlong_t)scip_count,
4037 (u_longlong_t)obsolete_bpobj_count,
4038 (u_longlong_t)remap_deadlist_count);
4039 } else {
4040 (void) printf("Verified indirect_refcount feature refcount " \
4041 "of %llu is correct\n",
4042 (u_longlong_t)oc_feature_refcount);
4043 }
4044 return (ret);
4045 }
4046
4047 #define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE"
4048 /*
4049 * Import the checkpointed state of the pool specified by the target
4050 * parameter as readonly. The function also accepts a pool config
4051 * as an optional parameter, else it attempts to infer the config by
4052 * the name of the target pool.
4053 *
4054 * Note that the checkpointed state's pool name will be the name of
4055 * the original pool with the above suffix appened to it. In addition,
4056 * if the target is not a pool name (e.g. a path to a dataset) then
4057 * the new_path parameter is populated with the updated path to
4058 * reflect the fact that we are looking into the checkpointed state.
4059 *
4060 * The function returns a newly-allocated copy of the name of the
4061 * pool containing the checkpointed state. When this copy is no
4062 * longer needed it should be freed with free(3C). Same thing
4063 * applies to the new_path parameter if allocated.
4064 */
4065 static char *
4066 import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path)
4067 {
4068 int error = 0;
4069 char *poolname, *bogus_name;
4070
4071 /* If the target is not a pool, the extract the pool name */
4072 char *path_start = strchr(target, '/');
4073 if (path_start != NULL) {
4074 size_t poolname_len = path_start - target;
4075 poolname = strndup(target, poolname_len);
4076 } else {
4077 poolname = target;
4078 }
4079
4080 if (cfg == NULL) {
4081 error = spa_get_stats(poolname, &cfg, NULL, 0);
4082 if (error != 0) {
4083 fatal("Tried to read config of pool \"%s\" but "
4084 "spa_get_stats() failed with error %d\n",
4085 poolname, error);
4086 }
4087 }
4088
4089 (void) asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX);
4090 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name);
4091
4092 error = spa_import(bogus_name, cfg, NULL,
4093 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT);
4094 if (error != 0) {
4095 fatal("Tried to import pool \"%s\" but spa_import() failed "
4096 "with error %d\n", bogus_name, error);
4097 }
4098
4099 if (new_path != NULL && path_start != NULL)
4100 (void) asprintf(new_path, "%s%s", bogus_name, path_start);
4101
4102 if (target != poolname)
4103 free(poolname);
4104
4105 return (bogus_name);
4106 }
4107
4108 typedef struct verify_checkpoint_sm_entry_cb_arg {
4109 vdev_t *vcsec_vd;
4110
4111 /* the following fields are only used for printing progress */
4112 uint64_t vcsec_entryid;
4113 uint64_t vcsec_num_entries;
4114 } verify_checkpoint_sm_entry_cb_arg_t;
4115
4116 #define ENTRIES_PER_PROGRESS_UPDATE 10000
4117
4118 static int
4119 verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg)
4120 {
4121 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg;
4122 vdev_t *vd = vcsec->vcsec_vd;
4123 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift];
4124 uint64_t end = sme->sme_offset + sme->sme_run;
4125
4126 ASSERT(sme->sme_type == SM_FREE);
4127
4128 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) {
4129 (void) fprintf(stderr,
4130 "\rverifying vdev %llu, space map entry %llu of %llu ...",
4131 (longlong_t)vd->vdev_id,
4132 (longlong_t)vcsec->vcsec_entryid,
4133 (longlong_t)vcsec->vcsec_num_entries);
4134 }
4135 vcsec->vcsec_entryid++;
4136
4137 /*
4138 * See comment in checkpoint_sm_exclude_entry_cb()
4139 */
4140 VERIFY3U(sme->sme_offset, >=, ms->ms_start);
4141 VERIFY3U(end, <=, ms->ms_start + ms->ms_size);
4142
4143 /*
4144 * The entries in the vdev_checkpoint_sm should be marked as
4145 * allocated in the checkpointed state of the pool, therefore
4146 * their respective ms_allocateable trees should not contain them.
4147 */
4148 mutex_enter(&ms->ms_lock);
4149 range_tree_verify(ms->ms_allocatable, sme->sme_offset, sme->sme_run);
4150 mutex_exit(&ms->ms_lock);
4151
4152 return (0);
4153 }
4154
4155 /*
4156 * Verify that all segments in the vdev_checkpoint_sm are allocated
4157 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's
4158 * ms_allocatable).
4159 *
4160 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of
4161 * each vdev in the current state of the pool to the metaslab space maps
4162 * (ms_sm) of the checkpointed state of the pool.
4163 *
4164 * Note that the function changes the state of the ms_allocatable
4165 * trees of the current spa_t. The entries of these ms_allocatable
4166 * trees are cleared out and then repopulated from with the free
4167 * entries of their respective ms_sm space maps.
4168 */
4169 static void
4170 verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current)
4171 {
4172 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev;
4173 vdev_t *current_rvd = current->spa_root_vdev;
4174
4175 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE);
4176
4177 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) {
4178 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c];
4179 vdev_t *current_vd = current_rvd->vdev_child[c];
4180
4181 space_map_t *checkpoint_sm = NULL;
4182 uint64_t checkpoint_sm_obj;
4183
4184 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) {
4185 /*
4186 * Since we don't allow device removal in a pool
4187 * that has a checkpoint, we expect that all removed
4188 * vdevs were removed from the pool before the
4189 * checkpoint.
4190 */
4191 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops);
4192 continue;
4193 }
4194
4195 /*
4196 * If the checkpoint space map doesn't exist, then nothing
4197 * here is checkpointed so there's nothing to verify.
4198 */
4199 if (current_vd->vdev_top_zap == 0 ||
4200 zap_contains(spa_meta_objset(current),
4201 current_vd->vdev_top_zap,
4202 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
4203 continue;
4204
4205 VERIFY0(zap_lookup(spa_meta_objset(current),
4206 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM,
4207 sizeof (uint64_t), 1, &checkpoint_sm_obj));
4208
4209 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current),
4210 checkpoint_sm_obj, 0, current_vd->vdev_asize,
4211 current_vd->vdev_ashift));
4212 space_map_update(checkpoint_sm);
4213
4214 verify_checkpoint_sm_entry_cb_arg_t vcsec;
4215 vcsec.vcsec_vd = ckpoint_vd;
4216 vcsec.vcsec_entryid = 0;
4217 vcsec.vcsec_num_entries =
4218 space_map_length(checkpoint_sm) / sizeof (uint64_t);
4219 VERIFY0(space_map_iterate(checkpoint_sm,
4220 verify_checkpoint_sm_entry_cb, &vcsec));
4221 dump_spacemap(current->spa_meta_objset, checkpoint_sm);
4222 space_map_close(checkpoint_sm);
4223 }
4224
4225 /*
4226 * If we've added vdevs since we took the checkpoint, ensure
4227 * that their checkpoint space maps are empty.
4228 */
4229 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) {
4230 for (uint64_t c = ckpoint_rvd->vdev_children;
4231 c < current_rvd->vdev_children; c++) {
4232 vdev_t *current_vd = current_rvd->vdev_child[c];
4233 ASSERT3P(current_vd->vdev_checkpoint_sm, ==, NULL);
4234 }
4235 }
4236
4237 /* for cleaner progress output */
4238 (void) fprintf(stderr, "\n");
4239 }
4240
4241 /*
4242 * Verifies that all space that's allocated in the checkpoint is
4243 * still allocated in the current version, by checking that everything
4244 * in checkpoint's ms_allocatable (which is actually allocated, not
4245 * allocatable/free) is not present in current's ms_allocatable.
4246 *
4247 * Note that the function changes the state of the ms_allocatable
4248 * trees of both spas when called. The entries of all ms_allocatable
4249 * trees are cleared out and then repopulated from their respective
4250 * ms_sm space maps. In the checkpointed state we load the allocated
4251 * entries, and in the current state we load the free entries.
4252 */
4253 static void
4254 verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current)
4255 {
4256 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev;
4257 vdev_t *current_rvd = current->spa_root_vdev;
4258
4259 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC);
4260 load_concrete_ms_allocatable_trees(current, SM_FREE);
4261
4262 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) {
4263 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i];
4264 vdev_t *current_vd = current_rvd->vdev_child[i];
4265
4266 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) {
4267 /*
4268 * See comment in verify_checkpoint_vdev_spacemaps()
4269 */
4270 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops);
4271 continue;
4272 }
4273
4274 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) {
4275 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m];
4276 metaslab_t *current_msp = current_vd->vdev_ms[m];
4277
4278 (void) fprintf(stderr,
4279 "\rverifying vdev %llu of %llu, "
4280 "metaslab %llu of %llu ...",
4281 (longlong_t)current_vd->vdev_id,
4282 (longlong_t)current_rvd->vdev_children,
4283 (longlong_t)current_vd->vdev_ms[m]->ms_id,
4284 (longlong_t)current_vd->vdev_ms_count);
4285
4286 /*
4287 * We walk through the ms_allocatable trees that
4288 * are loaded with the allocated blocks from the
4289 * ms_sm spacemaps of the checkpoint. For each
4290 * one of these ranges we ensure that none of them
4291 * exists in the ms_allocatable trees of the
4292 * current state which are loaded with the ranges
4293 * that are currently free.
4294 *
4295 * This way we ensure that none of the blocks that
4296 * are part of the checkpoint were freed by mistake.
4297 */
4298 range_tree_walk(ckpoint_msp->ms_allocatable,
4299 (range_tree_func_t *)range_tree_verify,
4300 current_msp->ms_allocatable);
4301 }
4302 }
4303
4304 /* for cleaner progress output */
4305 (void) fprintf(stderr, "\n");
4306 }
4307
4308 static void
4309 verify_checkpoint_blocks(spa_t *spa)
4310 {
4311 spa_t *checkpoint_spa;
4312 char *checkpoint_pool;
4313 nvlist_t *config = NULL;
4314 int error = 0;
4315
4316 /*
4317 * We import the checkpointed state of the pool (under a different
4318 * name) so we can do verification on it against the current state
4319 * of the pool.
4320 */
4321 checkpoint_pool = import_checkpointed_state(spa->spa_name, config,
4322 NULL);
4323 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0);
4324
4325 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG);
4326 if (error != 0) {
4327 fatal("Tried to open pool \"%s\" but spa_open() failed with "
4328 "error %d\n", checkpoint_pool, error);
4329 }
4330
4331 /*
4332 * Ensure that ranges in the checkpoint space maps of each vdev
4333 * are allocated according to the checkpointed state's metaslab
4334 * space maps.
4335 */
4336 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa);
4337
4338 /*
4339 * Ensure that allocated ranges in the checkpoint's metaslab
4340 * space maps remain allocated in the metaslab space maps of
4341 * the current state.
4342 */
4343 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa);
4344
4345 /*
4346 * Once we are done, we get rid of the checkpointed state.
4347 */
4348 spa_close(checkpoint_spa, FTAG);
4349 free(checkpoint_pool);
4350 }
4351
4352 static void
4353 dump_leftover_checkpoint_blocks(spa_t *spa)
4354 {
4355 vdev_t *rvd = spa->spa_root_vdev;
4356
4357 for (uint64_t i = 0; i < rvd->vdev_children; i++) {
4358 vdev_t *vd = rvd->vdev_child[i];
4359
4360 space_map_t *checkpoint_sm = NULL;
4361 uint64_t checkpoint_sm_obj;
4362
4363 if (vd->vdev_top_zap == 0)
4364 continue;
4365
4366 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap,
4367 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0)
4368 continue;
4369
4370 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap,
4371 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM,
4372 sizeof (uint64_t), 1, &checkpoint_sm_obj));
4373
4374 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa),
4375 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift));
4376 space_map_update(checkpoint_sm);
4377 dump_spacemap(spa->spa_meta_objset, checkpoint_sm);
4378 space_map_close(checkpoint_sm);
4379 }
4380 }
4381
4382 static int
4383 verify_checkpoint(spa_t *spa)
4384 {
4385 uberblock_t checkpoint;
4386 int error;
4387
4388 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT))
4389 return (0);
4390
4391 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
4392 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t),
4393 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint);
4394
4395 if (error == ENOENT && !dump_opt['L']) {
4396 /*
4397 * If the feature is active but the uberblock is missing
4398 * then we must be in the middle of discarding the
4399 * checkpoint.
4400 */
4401 (void) printf("\nPartially discarded checkpoint "
4402 "state found:\n");
4403 dump_leftover_checkpoint_blocks(spa);
4404 return (0);
4405 } else if (error != 0) {
4406 (void) printf("lookup error %d when looking for "
4407 "checkpointed uberblock in MOS\n", error);
4408 return (error);
4409 }
4410 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n");
4411
4412 if (checkpoint.ub_checkpoint_txg == 0) {
4413 (void) printf("\nub_checkpoint_txg not set in checkpointed "
4414 "uberblock\n");
4415 error = 3;
4416 }
4417
4418 if (error == 0 && !dump_opt['L'])
4419 verify_checkpoint_blocks(spa);
4420
4421 return (error);
4422 }
4423
4424 static void
4425 dump_zpool(spa_t *spa)
4426 {
4427 dsl_pool_t *dp = spa_get_dsl(spa);
4428 int rc = 0;
4429
4430 if (dump_opt['S']) {
4431 dump_simulated_ddt(spa);
4432 return;
4433 }
4434
4435 if (!dump_opt['e'] && dump_opt['C'] > 1) {
4436 (void) printf("\nCached configuration:\n");
4437 dump_nvlist(spa->spa_config, 8);
4438 }
4439
4440 if (dump_opt['C'])
4441 dump_config(spa);
4442
4443 if (dump_opt['u'])
4444 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
4445
4446 if (dump_opt['D'])
4447 dump_all_ddts(spa);
4448
4449 if (dump_opt['d'] > 2 || dump_opt['m'])
4450 dump_metaslabs(spa);
4451 if (dump_opt['M'])
4452 dump_metaslab_groups(spa);
4453
4454 if (dump_opt['d'] || dump_opt['i']) {
4455 dump_dir(dp->dp_meta_objset);
4456 if (dump_opt['d'] >= 3) {
4457 dsl_pool_t *dp = spa->spa_dsl_pool;
4458 dump_full_bpobj(&spa->spa_deferred_bpobj,
4459 "Deferred frees", 0);
4460 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
4461 dump_full_bpobj(&dp->dp_free_bpobj,
4462 "Pool snapshot frees", 0);
4463 }
4464 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
4465 ASSERT(spa_feature_is_enabled(spa,
4466 SPA_FEATURE_DEVICE_REMOVAL));
4467 dump_full_bpobj(&dp->dp_obsolete_bpobj,
4468 "Pool obsolete blocks", 0);
4469 }
4470
4471 if (spa_feature_is_active(spa,
4472 SPA_FEATURE_ASYNC_DESTROY)) {
4473 dump_bptree(spa->spa_meta_objset,
4474 dp->dp_bptree_obj,
4475 "Pool dataset frees");
4476 }
4477 dump_dtl(spa->spa_root_vdev, 0);
4478 }
4479 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
4480 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
4481
4482 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) {
4483 uint64_t refcount;
4484
4485 if (!(spa_feature_table[f].fi_flags &
4486 ZFEATURE_FLAG_PER_DATASET) ||
4487 !spa_feature_is_enabled(spa, f)) {
4488 ASSERT0(dataset_feature_count[f]);
4489 continue;
4490 }
4491 (void) feature_get_refcount(spa,
4492 &spa_feature_table[f], &refcount);
4493 if (dataset_feature_count[f] != refcount) {
4494 (void) printf("%s feature refcount mismatch: "
4495 "%lld datasets != %lld refcount\n",
4496 spa_feature_table[f].fi_uname,
4497 (longlong_t)dataset_feature_count[f],
4498 (longlong_t)refcount);
4499 rc = 2;
4500 } else {
4501 (void) printf("Verified %s feature refcount "
4502 "of %llu is correct\n",
4503 spa_feature_table[f].fi_uname,
4504 (longlong_t)refcount);
4505 }
4506 }
4507
4508 if (rc == 0) {
4509 rc = verify_device_removal_feature_counts(spa);
4510 }
4511 }
4512 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
4513 rc = dump_block_stats(spa);
4514
4515 if (rc == 0)
4516 rc = verify_spacemap_refcounts(spa);
4517
4518 if (dump_opt['s'])
4519 show_pool_stats(spa);
4520
4521 if (dump_opt['h'])
4522 dump_history(spa);
4523
4524 if (rc == 0)
4525 rc = verify_checkpoint(spa);
4526
4527 if (rc != 0) {
4528 dump_debug_buffer();
4529 exit(rc);
4530 }
4531 }
4532
4533 #define ZDB_FLAG_CHECKSUM 0x0001
4534 #define ZDB_FLAG_DECOMPRESS 0x0002
4535 #define ZDB_FLAG_BSWAP 0x0004
4536 #define ZDB_FLAG_GBH 0x0008
4537 #define ZDB_FLAG_INDIRECT 0x0010
4538 #define ZDB_FLAG_PHYS 0x0020
4539 #define ZDB_FLAG_RAW 0x0040
4540 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
4541
4542 static int flagbits[256];
4543
4544 static void
4545 zdb_print_blkptr(blkptr_t *bp, int flags)
4546 {
4547 char blkbuf[BP_SPRINTF_LEN];
4548
4549 if (flags & ZDB_FLAG_BSWAP)
4550 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
4551
4552 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
4553 (void) printf("%s\n", blkbuf);
4554 }
4555
4556 static void
4557 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
4558 {
4559 int i;
4560
4561 for (i = 0; i < nbps; i++)
4562 zdb_print_blkptr(&bp[i], flags);
4563 }
4564
4565 static void
4566 zdb_dump_gbh(void *buf, int flags)
4567 {
4568 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
4569 }
4570
4571 static void
4572 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
4573 {
4574 if (flags & ZDB_FLAG_BSWAP)
4575 byteswap_uint64_array(buf, size);
4576 (void) write(1, buf, size);
4577 }
4578
4579 static void
4580 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
4581 {
4582 uint64_t *d = (uint64_t *)buf;
4583 unsigned nwords = size / sizeof (uint64_t);
4584 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
4585 unsigned i, j;
4586 const char *hdr;
4587 char *c;
4588
4589
4590 if (do_bswap)
4591 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
4592 else
4593 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
4594
4595 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
4596
4597 for (i = 0; i < nwords; i += 2) {
4598 (void) printf("%06llx: %016llx %016llx ",
4599 (u_longlong_t)(i * sizeof (uint64_t)),
4600 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
4601 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
4602
4603 c = (char *)&d[i];
4604 for (j = 0; j < 2 * sizeof (uint64_t); j++)
4605 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
4606 (void) printf("\n");
4607 }
4608 }
4609
4610 /*
4611 * There are two acceptable formats:
4612 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
4613 * child[.child]* - For example: 0.1.1
4614 *
4615 * The second form can be used to specify arbitrary vdevs anywhere
4616 * in the heirarchy. For example, in a pool with a mirror of
4617 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
4618 */
4619 static vdev_t *
4620 zdb_vdev_lookup(vdev_t *vdev, const char *path)
4621 {
4622 char *s, *p, *q;
4623 unsigned i;
4624
4625 if (vdev == NULL)
4626 return (NULL);
4627
4628 /* First, assume the x.x.x.x format */
4629 i = strtoul(path, &s, 10);
4630 if (s == path || (s && *s != '.' && *s != '\0'))
4631 goto name;
4632 if (i >= vdev->vdev_children)
4633 return (NULL);
4634
4635 vdev = vdev->vdev_child[i];
4636 if (*s == '\0')
4637 return (vdev);
4638 return (zdb_vdev_lookup(vdev, s+1));
4639
4640 name:
4641 for (i = 0; i < vdev->vdev_children; i++) {
4642 vdev_t *vc = vdev->vdev_child[i];
4643
4644 if (vc->vdev_path == NULL) {
4645 vc = zdb_vdev_lookup(vc, path);
4646 if (vc == NULL)
4647 continue;
4648 else
4649 return (vc);
4650 }
4651
4652 p = strrchr(vc->vdev_path, '/');
4653 p = p ? p + 1 : vc->vdev_path;
4654 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
4655
4656 if (strcmp(vc->vdev_path, path) == 0)
4657 return (vc);
4658 if (strcmp(p, path) == 0)
4659 return (vc);
4660 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
4661 return (vc);
4662 }
4663
4664 return (NULL);
4665 }
4666
4667 /* ARGSUSED */
4668 static int
4669 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused)
4670 {
4671 return (random_get_pseudo_bytes(buf, len));
4672 }
4673
4674 /*
4675 * Read a block from a pool and print it out. The syntax of the
4676 * block descriptor is:
4677 *
4678 * pool:vdev_specifier:offset:size[:flags]
4679 *
4680 * pool - The name of the pool you wish to read from
4681 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
4682 * offset - offset, in hex, in bytes
4683 * size - Amount of data to read, in hex, in bytes
4684 * flags - A string of characters specifying options
4685 * b: Decode a blkptr at given offset within block
4686 * *c: Calculate and display checksums
4687 * d: Decompress data before dumping
4688 * e: Byteswap data before dumping
4689 * g: Display data as a gang block header
4690 * i: Display as an indirect block
4691 * p: Do I/O to physical offset
4692 * r: Dump raw data to stdout
4693 *
4694 * * = not yet implemented
4695 */
4696 static void
4697 zdb_read_block(char *thing, spa_t *spa)
4698 {
4699 blkptr_t blk, *bp = &blk;
4700 dva_t *dva = bp->blk_dva;
4701 int flags = 0;
4702 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
4703 zio_t *zio;
4704 vdev_t *vd;
4705 abd_t *pabd;
4706 void *lbuf, *buf;
4707 const char *s, *vdev;
4708 char *p, *dup, *flagstr;
4709 int i, error;
4710
4711 dup = strdup(thing);
4712 s = strtok(dup, ":");
4713 vdev = s ? s : "";
4714 s = strtok(NULL, ":");
4715 offset = strtoull(s ? s : "", NULL, 16);
4716 s = strtok(NULL, ":");
4717 size = strtoull(s ? s : "", NULL, 16);
4718 s = strtok(NULL, ":");
4719 if (s)
4720 flagstr = strdup(s);
4721 else
4722 flagstr = strdup("");
4723
4724 s = NULL;
4725 if (size == 0)
4726 s = "size must not be zero";
4727 if (!IS_P2ALIGNED(size, DEV_BSIZE))
4728 s = "size must be a multiple of sector size";
4729 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
4730 s = "offset must be a multiple of sector size";
4731 if (s) {
4732 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
4733 free(dup);
4734 return;
4735 }
4736
4737 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
4738 for (i = 0; flagstr[i]; i++) {
4739 int bit = flagbits[(uchar_t)flagstr[i]];
4740
4741 if (bit == 0) {
4742 (void) printf("***Invalid flag: %c\n",
4743 flagstr[i]);
4744 continue;
4745 }
4746 flags |= bit;
4747
4748 /* If it's not something with an argument, keep going */
4749 if ((bit & (ZDB_FLAG_CHECKSUM |
4750 ZDB_FLAG_PRINT_BLKPTR)) == 0)
4751 continue;
4752
4753 p = &flagstr[i + 1];
4754 if (bit == ZDB_FLAG_PRINT_BLKPTR)
4755 blkptr_offset = strtoull(p, &p, 16);
4756 if (*p != ':' && *p != '\0') {
4757 (void) printf("***Invalid flag arg: '%s'\n", s);
4758 free(dup);
4759 return;
4760 }
4761 }
4762 }
4763 free(flagstr);
4764
4765 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
4766 if (vd == NULL) {
4767 (void) printf("***Invalid vdev: %s\n", vdev);
4768 free(dup);
4769 return;
4770 } else {
4771 if (vd->vdev_path)
4772 (void) fprintf(stderr, "Found vdev: %s\n",
4773 vd->vdev_path);
4774 else
4775 (void) fprintf(stderr, "Found vdev type: %s\n",
4776 vd->vdev_ops->vdev_op_type);
4777 }
4778
4779 psize = size;
4780 lsize = size;
4781
4782 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE);
4783 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4784
4785 BP_ZERO(bp);
4786
4787 DVA_SET_VDEV(&dva[0], vd->vdev_id);
4788 DVA_SET_OFFSET(&dva[0], offset);
4789 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
4790 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
4791
4792 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
4793
4794 BP_SET_LSIZE(bp, lsize);
4795 BP_SET_PSIZE(bp, psize);
4796 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
4797 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
4798 BP_SET_TYPE(bp, DMU_OT_NONE);
4799 BP_SET_LEVEL(bp, 0);
4800 BP_SET_DEDUP(bp, 0);
4801 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
4802
4803 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
4804 zio = zio_root(spa, NULL, NULL, 0);
4805
4806 if (vd == vd->vdev_top) {
4807 /*
4808 * Treat this as a normal block read.
4809 */
4810 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
4811 ZIO_PRIORITY_SYNC_READ,
4812 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
4813 } else {
4814 /*
4815 * Treat this as a vdev child I/O.
4816 */
4817 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
4818 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
4819 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
4820 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
4821 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL,
4822 NULL, NULL));
4823 }
4824
4825 error = zio_wait(zio);
4826 spa_config_exit(spa, SCL_STATE, FTAG);
4827
4828 if (error) {
4829 (void) printf("Read of %s failed, error: %d\n", thing, error);
4830 goto out;
4831 }
4832
4833 if (flags & ZDB_FLAG_DECOMPRESS) {
4834 /*
4835 * We don't know how the data was compressed, so just try
4836 * every decompress function at every inflated blocksize.
4837 */
4838 enum zio_compress c;
4839 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4840 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4841
4842 abd_copy_to_buf(pbuf2, pabd, psize);
4843
4844 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize,
4845 random_get_pseudo_bytes_cb, NULL));
4846
4847 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
4848 SPA_MAXBLOCKSIZE - psize));
4849
4850 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
4851 lsize -= SPA_MINBLOCKSIZE) {
4852 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
4853 if (zio_decompress_data(c, pabd,
4854 lbuf, psize, lsize) == 0 &&
4855 zio_decompress_data_buf(c, pbuf2,
4856 lbuf2, psize, lsize) == 0 &&
4857 bcmp(lbuf, lbuf2, lsize) == 0)
4858 break;
4859 }
4860 if (c != ZIO_COMPRESS_FUNCTIONS)
4861 break;
4862 lsize -= SPA_MINBLOCKSIZE;
4863 }
4864
4865 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
4866 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
4867
4868 if (lsize <= psize) {
4869 (void) printf("Decompress of %s failed\n", thing);
4870 goto out;
4871 }
4872 buf = lbuf;
4873 size = lsize;
4874 } else {
4875 buf = abd_to_buf(pabd);
4876 size = psize;
4877 }
4878
4879 if (flags & ZDB_FLAG_PRINT_BLKPTR)
4880 zdb_print_blkptr((blkptr_t *)(void *)
4881 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
4882 else if (flags & ZDB_FLAG_RAW)
4883 zdb_dump_block_raw(buf, size, flags);
4884 else if (flags & ZDB_FLAG_INDIRECT)
4885 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
4886 flags);
4887 else if (flags & ZDB_FLAG_GBH)
4888 zdb_dump_gbh(buf, flags);
4889 else
4890 zdb_dump_block(thing, buf, size, flags);
4891
4892 out:
4893 abd_free(pabd);
4894 umem_free(lbuf, SPA_MAXBLOCKSIZE);
4895 free(dup);
4896 }
4897
4898 static void
4899 zdb_embedded_block(char *thing)
4900 {
4901 blkptr_t bp;
4902 unsigned long long *words = (void *)&bp;
4903 char buf[SPA_MAXBLOCKSIZE];
4904 int err;
4905
4906 bzero(&bp, sizeof (bp));
4907 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
4908 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
4909 words + 0, words + 1, words + 2, words + 3,
4910 words + 4, words + 5, words + 6, words + 7,
4911 words + 8, words + 9, words + 10, words + 11,
4912 words + 12, words + 13, words + 14, words + 15);
4913 if (err != 16) {
4914 (void) printf("invalid input format\n");
4915 exit(1);
4916 }
4917 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
4918 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
4919 if (err != 0) {
4920 (void) printf("decode failed: %u\n", err);
4921 exit(1);
4922 }
4923 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
4924 }
4925
4926 static boolean_t
4927 pool_match(nvlist_t *cfg, char *tgt)
4928 {
4929 uint64_t v, guid = strtoull(tgt, NULL, 0);
4930 char *s;
4931
4932 if (guid != 0) {
4933 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
4934 return (v == guid);
4935 } else {
4936 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
4937 return (strcmp(s, tgt) == 0);
4938 }
4939 return (B_FALSE);
4940 }
4941
4942 static char *
4943 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
4944 {
4945 nvlist_t *pools;
4946 nvlist_t *match = NULL;
4947 char *name = NULL;
4948 char *sepp = NULL;
4949 char sep = '\0';
4950 int count = 0;
4951 importargs_t args;
4952
4953 bzero(&args, sizeof (args));
4954 args.paths = dirc;
4955 args.path = dirv;
4956 args.can_be_active = B_TRUE;
4957
4958 if ((sepp = strpbrk(*target, "/@")) != NULL) {
4959 sep = *sepp;
4960 *sepp = '\0';
4961 }
4962
4963 pools = zpool_search_import(g_zfs, &args);
4964
4965 if (pools != NULL) {
4966 nvpair_t *elem = NULL;
4967 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
4968 verify(nvpair_value_nvlist(elem, configp) == 0);
4969 if (pool_match(*configp, *target)) {
4970 count++;
4971 if (match != NULL) {
4972 /* print previously found config */
4973 if (name != NULL) {
4974 (void) printf("%s\n", name);
4975 dump_nvlist(match, 8);
4976 name = NULL;
4977 }
4978 (void) printf("%s\n",
4979 nvpair_name(elem));
4980 dump_nvlist(*configp, 8);
4981 } else {
4982 match = *configp;
4983 name = nvpair_name(elem);
4984 }
4985 }
4986 }
4987 }
4988 if (count > 1)
4989 (void) fatal("\tMatched %d pools - use pool GUID "
4990 "instead of pool name or \n"
4991 "\tpool name part of a dataset name to select pool", count);
4992
4993 if (sepp)
4994 *sepp = sep;
4995 /*
4996 * If pool GUID was specified for pool id, replace it with pool name
4997 */
4998 if (name && (strstr(*target, name) != *target)) {
4999 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
5000
5001 *target = umem_alloc(sz, UMEM_NOFAIL);
5002 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
5003 }
5004
5005 *configp = name ? match : NULL;
5006
5007 return (name);
5008 }
5009
5010 int
5011 main(int argc, char **argv)
5012 {
5013 int c;
5014 struct rlimit rl = { 1024, 1024 };
5015 spa_t *spa = NULL;
5016 objset_t *os = NULL;
5017 int dump_all = 1;
5018 int verbose = 0;
5019 int error = 0;
5020 char **searchdirs = NULL;
5021 int nsearch = 0;
5022 char *target;
5023 nvlist_t *policy = NULL;
5024 uint64_t max_txg = UINT64_MAX;
5025 int flags = ZFS_IMPORT_MISSING_LOG;
5026 int rewind = ZPOOL_NEVER_REWIND;
5027 char *spa_config_path_env;
5028 boolean_t target_is_spa = B_TRUE;
5029 nvlist_t *cfg = NULL;
5030
5031 (void) setrlimit(RLIMIT_NOFILE, &rl);
5032 (void) enable_extended_FILE_stdio(-1, -1);
5033
5034 dprintf_setup(&argc, argv);
5035
5036 /*
5037 * If there is an environment variable SPA_CONFIG_PATH it overrides
5038 * default spa_config_path setting. If -U flag is specified it will
5039 * override this environment variable settings once again.
5040 */
5041 spa_config_path_env = getenv("SPA_CONFIG_PATH");
5042 if (spa_config_path_env != NULL)
5043 spa_config_path = spa_config_path_env;
5044
5045 while ((c = getopt(argc, argv,
5046 "AbcCdDeEFGhiI:klLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
5047 switch (c) {
5048 case 'b':
5049 case 'c':
5050 case 'C':
5051 case 'd':
5052 case 'D':
5053 case 'E':
5054 case 'G':
5055 case 'h':
5056 case 'i':
5057 case 'l':
5058 case 'm':
5059 case 'M':
5060 case 'O':
5061 case 'R':
5062 case 's':
5063 case 'S':
5064 case 'u':
5065 dump_opt[c]++;
5066 dump_all = 0;
5067 break;
5068 case 'A':
5069 case 'e':
5070 case 'F':
5071 case 'k':
5072 case 'L':
5073 case 'P':
5074 case 'q':
5075 case 'X':
5076 dump_opt[c]++;
5077 break;
5078 /* NB: Sort single match options below. */
5079 case 'I':
5080 max_inflight = strtoull(optarg, NULL, 0);
5081 if (max_inflight == 0) {
5082 (void) fprintf(stderr, "maximum number "
5083 "of inflight I/Os must be greater "
5084 "than 0\n");
5085 usage();
5086 }
5087 break;
5088 case 'o':
5089 error = set_global_var(optarg);
5090 if (error != 0)
5091 usage();
5092 break;
5093 case 'p':
5094 if (searchdirs == NULL) {
5095 searchdirs = umem_alloc(sizeof (char *),
5096 UMEM_NOFAIL);
5097 } else {
5098 char **tmp = umem_alloc((nsearch + 1) *
5099 sizeof (char *), UMEM_NOFAIL);
5100 bcopy(searchdirs, tmp, nsearch *
5101 sizeof (char *));
5102 umem_free(searchdirs,
5103 nsearch * sizeof (char *));
5104 searchdirs = tmp;
5105 }
5106 searchdirs[nsearch++] = optarg;
5107 break;
5108 case 't':
5109 max_txg = strtoull(optarg, NULL, 0);
5110 if (max_txg < TXG_INITIAL) {
5111 (void) fprintf(stderr, "incorrect txg "
5112 "specified: %s\n", optarg);
5113 usage();
5114 }
5115 break;
5116 case 'U':
5117 spa_config_path = optarg;
5118 if (spa_config_path[0] != '/') {
5119 (void) fprintf(stderr,
5120 "cachefile must be an absolute path "
5121 "(i.e. start with a slash)\n");
5122 usage();
5123 }
5124 break;
5125 case 'v':
5126 verbose++;
5127 break;
5128 case 'V':
5129 flags = ZFS_IMPORT_VERBATIM;
5130 break;
5131 case 'x':
5132 vn_dumpdir = optarg;
5133 break;
5134 default:
5135 usage();
5136 break;
5137 }
5138 }
5139
5140 if (!dump_opt['e'] && searchdirs != NULL) {
5141 (void) fprintf(stderr, "-p option requires use of -e\n");
5142 usage();
5143 }
5144
5145 /*
5146 * ZDB does not typically re-read blocks; therefore limit the ARC
5147 * to 256 MB, which can be used entirely for metadata.
5148 */
5149 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
5150
5151 /*
5152 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
5153 * "zdb -b" uses traversal prefetch which uses async reads.
5154 * For good performance, let several of them be active at once.
5155 */
5156 zfs_vdev_async_read_max_active = 10;
5157
5158 /*
5159 * Disable reference tracking for better performance.
5160 */
5161 reference_tracking_enable = B_FALSE;
5162
5163 /*
5164 * Do not fail spa_load when spa_load_verify fails. This is needed
5165 * to load non-idle pools.
5166 */
5167 spa_load_verify_dryrun = B_TRUE;
5168
5169 kernel_init(FREAD);
5170 g_zfs = libzfs_init();
5171 ASSERT(g_zfs != NULL);
5172
5173 if (dump_all)
5174 verbose = MAX(verbose, 1);
5175
5176 for (c = 0; c < 256; c++) {
5177 if (dump_all && strchr("AeEFklLOPRSX", c) == NULL)
5178 dump_opt[c] = 1;
5179 if (dump_opt[c])
5180 dump_opt[c] += verbose;
5181 }
5182
5183 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
5184 zfs_recover = (dump_opt['A'] > 1);
5185
5186 argc -= optind;
5187 argv += optind;
5188
5189 if (argc < 2 && dump_opt['R'])
5190 usage();
5191
5192 if (dump_opt['E']) {
5193 if (argc != 1)
5194 usage();
5195 zdb_embedded_block(argv[0]);
5196 return (0);
5197 }
5198
5199 if (argc < 1) {
5200 if (!dump_opt['e'] && dump_opt['C']) {
5201 dump_cachefile(spa_config_path);
5202 return (0);
5203 }
5204 usage();
5205 }
5206
5207 if (dump_opt['l'])
5208 return (dump_label(argv[0]));
5209
5210 if (dump_opt['O']) {
5211 if (argc != 2)
5212 usage();
5213 dump_opt['v'] = verbose + 3;
5214 return (dump_path(argv[0], argv[1]));
5215 }
5216
5217 if (dump_opt['X'] || dump_opt['F'])
5218 rewind = ZPOOL_DO_REWIND |
5219 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
5220
5221 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
5222 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 ||
5223 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0)
5224 fatal("internal error: %s", strerror(ENOMEM));
5225
5226 error = 0;
5227 target = argv[0];
5228
5229 if (dump_opt['e']) {
5230 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
5231
5232 error = ENOENT;
5233 if (name) {
5234 if (dump_opt['C'] > 1) {
5235 (void) printf("\nConfiguration for import:\n");
5236 dump_nvlist(cfg, 8);
5237 }
5238
5239 if (nvlist_add_nvlist(cfg,
5240 ZPOOL_LOAD_POLICY, policy) != 0) {
5241 fatal("can't open '%s': %s",
5242 target, strerror(ENOMEM));
5243 }
5244 error = spa_import(name, cfg, NULL, flags);
5245 }
5246 }
5247
5248 char *checkpoint_pool = NULL;
5249 char *checkpoint_target = NULL;
5250 if (dump_opt['k']) {
5251 checkpoint_pool = import_checkpointed_state(target, cfg,
5252 &checkpoint_target);
5253
5254 if (checkpoint_target != NULL)
5255 target = checkpoint_target;
5256
5257 }
5258
5259 if (strpbrk(target, "/@") != NULL) {
5260 size_t targetlen;
5261
5262 target_is_spa = B_FALSE;
5263 /*
5264 * Remove any trailing slash. Later code would get confused
5265 * by it, but we want to allow it so that "pool/" can
5266 * indicate that we want to dump the topmost filesystem,
5267 * rather than the whole pool.
5268 */
5269 targetlen = strlen(target);
5270 if (targetlen != 0 && target[targetlen - 1] == '/')
5271 target[targetlen - 1] = '\0';
5272 }
5273
5274 if (error == 0) {
5275 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) {
5276 ASSERT(checkpoint_pool != NULL);
5277 ASSERT(checkpoint_target == NULL);
5278
5279 error = spa_open(checkpoint_pool, &spa, FTAG);
5280 if (error != 0) {
5281 fatal("Tried to open pool \"%s\" but "
5282 "spa_open() failed with error %d\n",
5283 checkpoint_pool, error);
5284 }
5285
5286 } else if (target_is_spa || dump_opt['R']) {
5287 error = spa_open_rewind(target, &spa, FTAG, policy,
5288 NULL);
5289 if (error) {
5290 /*
5291 * If we're missing the log device then
5292 * try opening the pool after clearing the
5293 * log state.
5294 */
5295 mutex_enter(&spa_namespace_lock);
5296 if ((spa = spa_lookup(target)) != NULL &&
5297 spa->spa_log_state == SPA_LOG_MISSING) {
5298 spa->spa_log_state = SPA_LOG_CLEAR;
5299 error = 0;
5300 }
5301 mutex_exit(&spa_namespace_lock);
5302
5303 if (!error) {
5304 error = spa_open_rewind(target, &spa,
5305 FTAG, policy, NULL);
5306 }
5307 }
5308 } else {
5309 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
5310 }
5311 }
5312 nvlist_free(policy);
5313
5314 if (error)
5315 fatal("can't open '%s': %s", target, strerror(error));
5316
5317 argv++;
5318 argc--;
5319 if (!dump_opt['R']) {
5320 if (argc > 0) {
5321 zopt_objects = argc;
5322 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
5323 for (unsigned i = 0; i < zopt_objects; i++) {
5324 errno = 0;
5325 zopt_object[i] = strtoull(argv[i], NULL, 0);
5326 if (zopt_object[i] == 0 && errno != 0)
5327 fatal("bad number %s: %s",
5328 argv[i], strerror(errno));
5329 }
5330 }
5331 if (os != NULL) {
5332 dump_dir(os);
5333 } else if (zopt_objects > 0 && !dump_opt['m']) {
5334 dump_dir(spa->spa_meta_objset);
5335 } else {
5336 dump_zpool(spa);
5337 }
5338 } else {
5339 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
5340 flagbits['c'] = ZDB_FLAG_CHECKSUM;
5341 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
5342 flagbits['e'] = ZDB_FLAG_BSWAP;
5343 flagbits['g'] = ZDB_FLAG_GBH;
5344 flagbits['i'] = ZDB_FLAG_INDIRECT;
5345 flagbits['p'] = ZDB_FLAG_PHYS;
5346 flagbits['r'] = ZDB_FLAG_RAW;
5347
5348 for (int i = 0; i < argc; i++)
5349 zdb_read_block(argv[i], spa);
5350 }
5351
5352 if (dump_opt['k']) {
5353 free(checkpoint_pool);
5354 if (!target_is_spa)
5355 free(checkpoint_target);
5356 }
5357
5358 if (os != NULL)
5359 close_objset(os, FTAG);
5360 else
5361 spa_close(spa, FTAG);
5362
5363 fuid_table_destroy();
5364
5365 dump_debug_buffer();
5366
5367 libzfs_fini(g_zfs);
5368 kernel_fini();
5369
5370 return (0);
5371 }
Unleashed OS