?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
5960 zfs recv should prefetch indirect blocks
[illumos-gate.git] / usr / src / cmd / zdb / zdb.c
blob6bbde84e8202927822f556665b301ab5ed34be61
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, 2014 by Delphix. All rights reserved.
25 */
26
27 #include <stdio.h>
28 #include <unistd.h>
29 #include <stdio_ext.h>
30 #include <stdlib.h>
31 #include <ctype.h>
32 #include <sys/zfs_context.h>
33 #include <sys/spa.h>
34 #include <sys/spa_impl.h>
35 #include <sys/dmu.h>
36 #include <sys/zap.h>
37 #include <sys/fs/zfs.h>
38 #include <sys/zfs_znode.h>
39 #include <sys/zfs_sa.h>
40 #include <sys/sa.h>
41 #include <sys/sa_impl.h>
42 #include <sys/vdev.h>
43 #include <sys/vdev_impl.h>
44 #include <sys/metaslab_impl.h>
45 #include <sys/dmu_objset.h>
46 #include <sys/dsl_dir.h>
47 #include <sys/dsl_dataset.h>
48 #include <sys/dsl_pool.h>
49 #include <sys/dbuf.h>
50 #include <sys/zil.h>
51 #include <sys/zil_impl.h>
52 #include <sys/stat.h>
53 #include <sys/resource.h>
54 #include <sys/dmu_traverse.h>
55 #include <sys/zio_checksum.h>
56 #include <sys/zio_compress.h>
57 #include <sys/zfs_fuid.h>
58 #include <sys/arc.h>
59 #include <sys/ddt.h>
60 #include <sys/zfeature.h>
61 #include <zfs_comutil.h>
62 #undef ZFS_MAXNAMELEN
63 #undef verify
64 #include <libzfs.h>
65
66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
67 zio_compress_table[(idx)].ci_name : "UNKNOWN")
68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
69 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
76
77 #ifndef lint
78 extern boolean_t zfs_recover;
79 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
80 extern int zfs_vdev_async_read_max_active;
81 #else
82 boolean_t zfs_recover;
83 uint64_t zfs_arc_max, zfs_arc_meta_limit;
84 int zfs_vdev_async_read_max_active;
85 #endif
86
87 const char cmdname[] = "zdb";
88 uint8_t dump_opt[256];
89
90 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
91
92 extern void dump_intent_log(zilog_t *);
93 uint64_t *zopt_object = NULL;
94 int zopt_objects = 0;
95 libzfs_handle_t *g_zfs;
96 uint64_t max_inflight = 1000;
97
98 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
99
100 /*
101 * These libumem hooks provide a reasonable set of defaults for the allocator's
102 * debugging facilities.
103 */
104 const char *
105 _umem_debug_init()
106 {
107 return ("default,verbose"); /* $UMEM_DEBUG setting */
108 }
109
110 const char *
111 _umem_logging_init(void)
112 {
113 return ("fail,contents"); /* $UMEM_LOGGING setting */
114 }
115
116 static void
117 usage(void)
118 {
119 (void) fprintf(stderr,
120 "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
121 "[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n"
122 " %s [-divPA] [-e -p path...] [-U config] dataset "
123 "[object...]\n"
124 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
125 "poolname [vdev [metaslab...]]\n"
126 " %s -R [-A] [-e [-p path...]] poolname "
127 "vdev:offset:size[:flags]\n"
128 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
129 " %s -l [-uA] device\n"
130 " %s -C [-A] [-U config]\n\n",
131 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
132
133 (void) fprintf(stderr, " Dataset name must include at least one "
134 "separator character '/' or '@'\n");
135 (void) fprintf(stderr, " If dataset name is specified, only that "
136 "dataset is dumped\n");
137 (void) fprintf(stderr, " If object numbers are specified, only "
138 "those objects are dumped\n\n");
139 (void) fprintf(stderr, " Options to control amount of output:\n");
140 (void) fprintf(stderr, " -u uberblock\n");
141 (void) fprintf(stderr, " -d dataset(s)\n");
142 (void) fprintf(stderr, " -i intent logs\n");
143 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
144 (void) fprintf(stderr, " -h pool history\n");
145 (void) fprintf(stderr, " -b block statistics\n");
146 (void) fprintf(stderr, " -m metaslabs\n");
147 (void) fprintf(stderr, " -M metaslab groups\n");
148 (void) fprintf(stderr, " -c checksum all metadata (twice for "
149 "all data) blocks\n");
150 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
151 (void) fprintf(stderr, " -D dedup statistics\n");
152 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
153 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
154 (void) fprintf(stderr, " -l dump label contents\n");
155 (void) fprintf(stderr, " -L disable leak tracking (do not "
156 "load spacemaps)\n");
157 (void) fprintf(stderr, " -R read and display block from a "
158 "device\n\n");
159 (void) fprintf(stderr, " Below options are intended for use "
160 "with other options:\n");
161 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
162 "panic recovery (-AA) or both (-AAA)\n");
163 (void) fprintf(stderr, " -F attempt automatic rewind within "
164 "safe range of transaction groups\n");
165 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
166 "cachefile\n");
167 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
168 "work with dataset)\n");
169 (void) fprintf(stderr, " -e pool is exported/destroyed/"
170 "has altroot/not in a cachefile\n");
171 (void) fprintf(stderr, " -p <path> -- use one or more with "
172 "-e to specify path to vdev dir\n");
173 (void) fprintf(stderr, " -x <dumpdir> -- "
174 "dump all read blocks into specified directory\n");
175 (void) fprintf(stderr, " -P print numbers in parseable form\n");
176 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
177 "searching for uberblocks\n");
178 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
179 "specify the maximum number of "
180 "checksumming I/Os [default is 200]\n");
181 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
182 "to make only that option verbose\n");
183 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
184 exit(1);
185 }
186
187 /*
188 * Called for usage errors that are discovered after a call to spa_open(),
189 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
190 */
191
192 static void
193 fatal(const char *fmt, ...)
194 {
195 va_list ap;
196
197 va_start(ap, fmt);
198 (void) fprintf(stderr, "%s: ", cmdname);
199 (void) vfprintf(stderr, fmt, ap);
200 va_end(ap);
201 (void) fprintf(stderr, "\n");
202
203 exit(1);
204 }
205
206 /* ARGSUSED */
207 static void
208 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
209 {
210 nvlist_t *nv;
211 size_t nvsize = *(uint64_t *)data;
212 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
213
214 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
215
216 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
217
218 umem_free(packed, nvsize);
219
220 dump_nvlist(nv, 8);
221
222 nvlist_free(nv);
223 }
224
225 /* ARGSUSED */
226 static void
227 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
228 {
229 spa_history_phys_t *shp = data;
230
231 if (shp == NULL)
232 return;
233
234 (void) printf("\t\tpool_create_len = %llu\n",
235 (u_longlong_t)shp->sh_pool_create_len);
236 (void) printf("\t\tphys_max_off = %llu\n",
237 (u_longlong_t)shp->sh_phys_max_off);
238 (void) printf("\t\tbof = %llu\n",
239 (u_longlong_t)shp->sh_bof);
240 (void) printf("\t\teof = %llu\n",
241 (u_longlong_t)shp->sh_eof);
242 (void) printf("\t\trecords_lost = %llu\n",
243 (u_longlong_t)shp->sh_records_lost);
244 }
245
246 static void
247 zdb_nicenum(uint64_t num, char *buf)
248 {
249 if (dump_opt['P'])
250 (void) sprintf(buf, "%llu", (longlong_t)num);
251 else
252 nicenum(num, buf);
253 }
254
255 const char histo_stars[] = "****************************************";
256 const int histo_width = sizeof (histo_stars) - 1;
257
258 static void
259 dump_histogram(const uint64_t *histo, int size, int offset)
260 {
261 int i;
262 int minidx = size - 1;
263 int maxidx = 0;
264 uint64_t max = 0;
265
266 for (i = 0; i < size; i++) {
267 if (histo[i] > max)
268 max = histo[i];
269 if (histo[i] > 0 && i > maxidx)
270 maxidx = i;
271 if (histo[i] > 0 && i < minidx)
272 minidx = i;
273 }
274
275 if (max < histo_width)
276 max = histo_width;
277
278 for (i = minidx; i <= maxidx; i++) {
279 (void) printf("\t\t\t%3u: %6llu %s\n",
280 i + offset, (u_longlong_t)histo[i],
281 &histo_stars[(max - histo[i]) * histo_width / max]);
282 }
283 }
284
285 static void
286 dump_zap_stats(objset_t *os, uint64_t object)
287 {
288 int error;
289 zap_stats_t zs;
290
291 error = zap_get_stats(os, object, &zs);
292 if (error)
293 return;
294
295 if (zs.zs_ptrtbl_len == 0) {
296 ASSERT(zs.zs_num_blocks == 1);
297 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
298 (u_longlong_t)zs.zs_blocksize,
299 (u_longlong_t)zs.zs_num_entries);
300 return;
301 }
302
303 (void) printf("\tFat ZAP stats:\n");
304
305 (void) printf("\t\tPointer table:\n");
306 (void) printf("\t\t\t%llu elements\n",
307 (u_longlong_t)zs.zs_ptrtbl_len);
308 (void) printf("\t\t\tzt_blk: %llu\n",
309 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
310 (void) printf("\t\t\tzt_numblks: %llu\n",
311 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
312 (void) printf("\t\t\tzt_shift: %llu\n",
313 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
314 (void) printf("\t\t\tzt_blks_copied: %llu\n",
315 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
316 (void) printf("\t\t\tzt_nextblk: %llu\n",
317 (u_longlong_t)zs.zs_ptrtbl_nextblk);
318
319 (void) printf("\t\tZAP entries: %llu\n",
320 (u_longlong_t)zs.zs_num_entries);
321 (void) printf("\t\tLeaf blocks: %llu\n",
322 (u_longlong_t)zs.zs_num_leafs);
323 (void) printf("\t\tTotal blocks: %llu\n",
324 (u_longlong_t)zs.zs_num_blocks);
325 (void) printf("\t\tzap_block_type: 0x%llx\n",
326 (u_longlong_t)zs.zs_block_type);
327 (void) printf("\t\tzap_magic: 0x%llx\n",
328 (u_longlong_t)zs.zs_magic);
329 (void) printf("\t\tzap_salt: 0x%llx\n",
330 (u_longlong_t)zs.zs_salt);
331
332 (void) printf("\t\tLeafs with 2^n pointers:\n");
333 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
334
335 (void) printf("\t\tBlocks with n*5 entries:\n");
336 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
337
338 (void) printf("\t\tBlocks n/10 full:\n");
339 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
340
341 (void) printf("\t\tEntries with n chunks:\n");
342 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
343
344 (void) printf("\t\tBuckets with n entries:\n");
345 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
346 }
347
348 /*ARGSUSED*/
349 static void
350 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
351 {
352 }
353
354 /*ARGSUSED*/
355 static void
356 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
357 {
358 (void) printf("\tUNKNOWN OBJECT TYPE\n");
359 }
360
361 /*ARGSUSED*/
362 void
363 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
364 {
365 }
366
367 /*ARGSUSED*/
368 static void
369 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
370 {
371 }
372
373 /*ARGSUSED*/
374 static void
375 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
376 {
377 zap_cursor_t zc;
378 zap_attribute_t attr;
379 void *prop;
380 int i;
381
382 dump_zap_stats(os, object);
383 (void) printf("\n");
384
385 for (zap_cursor_init(&zc, os, object);
386 zap_cursor_retrieve(&zc, &attr) == 0;
387 zap_cursor_advance(&zc)) {
388 (void) printf("\t\t%s = ", attr.za_name);
389 if (attr.za_num_integers == 0) {
390 (void) printf("\n");
391 continue;
392 }
393 prop = umem_zalloc(attr.za_num_integers *
394 attr.za_integer_length, UMEM_NOFAIL);
395 (void) zap_lookup(os, object, attr.za_name,
396 attr.za_integer_length, attr.za_num_integers, prop);
397 if (attr.za_integer_length == 1) {
398 (void) printf("%s", (char *)prop);
399 } else {
400 for (i = 0; i < attr.za_num_integers; i++) {
401 switch (attr.za_integer_length) {
402 case 2:
403 (void) printf("%u ",
404 ((uint16_t *)prop)[i]);
405 break;
406 case 4:
407 (void) printf("%u ",
408 ((uint32_t *)prop)[i]);
409 break;
410 case 8:
411 (void) printf("%lld ",
412 (u_longlong_t)((int64_t *)prop)[i]);
413 break;
414 }
415 }
416 }
417 (void) printf("\n");
418 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
419 }
420 zap_cursor_fini(&zc);
421 }
422
423 static void
424 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
425 {
426 bpobj_phys_t *bpop = data;
427 char bytes[32], comp[32], uncomp[32];
428
429 if (bpop == NULL)
430 return;
431
432 zdb_nicenum(bpop->bpo_bytes, bytes);
433 zdb_nicenum(bpop->bpo_comp, comp);
434 zdb_nicenum(bpop->bpo_uncomp, uncomp);
435
436 (void) printf("\t\tnum_blkptrs = %llu\n",
437 (u_longlong_t)bpop->bpo_num_blkptrs);
438 (void) printf("\t\tbytes = %s\n", bytes);
439 if (size >= BPOBJ_SIZE_V1) {
440 (void) printf("\t\tcomp = %s\n", comp);
441 (void) printf("\t\tuncomp = %s\n", uncomp);
442 }
443 if (size >= sizeof (*bpop)) {
444 (void) printf("\t\tsubobjs = %llu\n",
445 (u_longlong_t)bpop->bpo_subobjs);
446 (void) printf("\t\tnum_subobjs = %llu\n",
447 (u_longlong_t)bpop->bpo_num_subobjs);
448 }
449
450 if (dump_opt['d'] < 5)
451 return;
452
453 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) {
454 char blkbuf[BP_SPRINTF_LEN];
455 blkptr_t bp;
456
457 int err = dmu_read(os, object,
458 i * sizeof (bp), sizeof (bp), &bp, 0);
459 if (err != 0) {
460 (void) printf("got error %u from dmu_read\n", err);
461 break;
462 }
463 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
464 (void) printf("\t%s\n", blkbuf);
465 }
466 }
467
468 /* ARGSUSED */
469 static void
470 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
471 {
472 dmu_object_info_t doi;
473
474 VERIFY0(dmu_object_info(os, object, &doi));
475 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
476
477 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
478 if (err != 0) {
479 (void) printf("got error %u from dmu_read\n", err);
480 kmem_free(subobjs, doi.doi_max_offset);
481 return;
482 }
483
484 int64_t last_nonzero = -1;
485 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) {
486 if (subobjs[i] != 0)
487 last_nonzero = i;
488 }
489
490 for (int64_t i = 0; i <= last_nonzero; i++) {
491 (void) printf("\t%llu\n", (longlong_t)subobjs[i]);
492 }
493 kmem_free(subobjs, doi.doi_max_offset);
494 }
495
496 /*ARGSUSED*/
497 static void
498 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
499 {
500 dump_zap_stats(os, object);
501 /* contents are printed elsewhere, properly decoded */
502 }
503
504 /*ARGSUSED*/
505 static void
506 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
507 {
508 zap_cursor_t zc;
509 zap_attribute_t attr;
510
511 dump_zap_stats(os, object);
512 (void) printf("\n");
513
514 for (zap_cursor_init(&zc, os, object);
515 zap_cursor_retrieve(&zc, &attr) == 0;
516 zap_cursor_advance(&zc)) {
517 (void) printf("\t\t%s = ", attr.za_name);
518 if (attr.za_num_integers == 0) {
519 (void) printf("\n");
520 continue;
521 }
522 (void) printf(" %llx : [%d:%d:%d]\n",
523 (u_longlong_t)attr.za_first_integer,
524 (int)ATTR_LENGTH(attr.za_first_integer),
525 (int)ATTR_BSWAP(attr.za_first_integer),
526 (int)ATTR_NUM(attr.za_first_integer));
527 }
528 zap_cursor_fini(&zc);
529 }
530
531 /*ARGSUSED*/
532 static void
533 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
534 {
535 zap_cursor_t zc;
536 zap_attribute_t attr;
537 uint16_t *layout_attrs;
538 int i;
539
540 dump_zap_stats(os, object);
541 (void) printf("\n");
542
543 for (zap_cursor_init(&zc, os, object);
544 zap_cursor_retrieve(&zc, &attr) == 0;
545 zap_cursor_advance(&zc)) {
546 (void) printf("\t\t%s = [", attr.za_name);
547 if (attr.za_num_integers == 0) {
548 (void) printf("\n");
549 continue;
550 }
551
552 VERIFY(attr.za_integer_length == 2);
553 layout_attrs = umem_zalloc(attr.za_num_integers *
554 attr.za_integer_length, UMEM_NOFAIL);
555
556 VERIFY(zap_lookup(os, object, attr.za_name,
557 attr.za_integer_length,
558 attr.za_num_integers, layout_attrs) == 0);
559
560 for (i = 0; i != attr.za_num_integers; i++)
561 (void) printf(" %d ", (int)layout_attrs[i]);
562 (void) printf("]\n");
563 umem_free(layout_attrs,
564 attr.za_num_integers * attr.za_integer_length);
565 }
566 zap_cursor_fini(&zc);
567 }
568
569 /*ARGSUSED*/
570 static void
571 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
572 {
573 zap_cursor_t zc;
574 zap_attribute_t attr;
575 const char *typenames[] = {
576 /* 0 */ "not specified",
577 /* 1 */ "FIFO",
578 /* 2 */ "Character Device",
579 /* 3 */ "3 (invalid)",
580 /* 4 */ "Directory",
581 /* 5 */ "5 (invalid)",
582 /* 6 */ "Block Device",
583 /* 7 */ "7 (invalid)",
584 /* 8 */ "Regular File",
585 /* 9 */ "9 (invalid)",
586 /* 10 */ "Symbolic Link",
587 /* 11 */ "11 (invalid)",
588 /* 12 */ "Socket",
589 /* 13 */ "Door",
590 /* 14 */ "Event Port",
591 /* 15 */ "15 (invalid)",
592 };
593
594 dump_zap_stats(os, object);
595 (void) printf("\n");
596
597 for (zap_cursor_init(&zc, os, object);
598 zap_cursor_retrieve(&zc, &attr) == 0;
599 zap_cursor_advance(&zc)) {
600 (void) printf("\t\t%s = %lld (type: %s)\n",
601 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
602 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
603 }
604 zap_cursor_fini(&zc);
605 }
606
607 int
608 get_dtl_refcount(vdev_t *vd)
609 {
610 int refcount = 0;
611
612 if (vd->vdev_ops->vdev_op_leaf) {
613 space_map_t *sm = vd->vdev_dtl_sm;
614
615 if (sm != NULL &&
616 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
617 return (1);
618 return (0);
619 }
620
621 for (int c = 0; c < vd->vdev_children; c++)
622 refcount += get_dtl_refcount(vd->vdev_child[c]);
623 return (refcount);
624 }
625
626 int
627 get_metaslab_refcount(vdev_t *vd)
628 {
629 int refcount = 0;
630
631 if (vd->vdev_top == vd && !vd->vdev_removing) {
632 for (int m = 0; m < vd->vdev_ms_count; m++) {
633 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
634
635 if (sm != NULL &&
636 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
637 refcount++;
638 }
639 }
640 for (int c = 0; c < vd->vdev_children; c++)
641 refcount += get_metaslab_refcount(vd->vdev_child[c]);
642
643 return (refcount);
644 }
645
646 static int
647 verify_spacemap_refcounts(spa_t *spa)
648 {
649 uint64_t expected_refcount = 0;
650 uint64_t actual_refcount;
651
652 (void) feature_get_refcount(spa,
653 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
654 &expected_refcount);
655 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
656 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
657
658 if (expected_refcount != actual_refcount) {
659 (void) printf("space map refcount mismatch: expected %lld != "
660 "actual %lld\n",
661 (longlong_t)expected_refcount,
662 (longlong_t)actual_refcount);
663 return (2);
664 }
665 return (0);
666 }
667
668 static void
669 dump_spacemap(objset_t *os, space_map_t *sm)
670 {
671 uint64_t alloc, offset, entry;
672 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
673 "INVALID", "INVALID", "INVALID", "INVALID" };
674
675 if (sm == NULL)
676 return;
677
678 /*
679 * Print out the freelist entries in both encoded and decoded form.
680 */
681 alloc = 0;
682 for (offset = 0; offset < space_map_length(sm);
683 offset += sizeof (entry)) {
684 uint8_t mapshift = sm->sm_shift;
685
686 VERIFY0(dmu_read(os, space_map_object(sm), offset,
687 sizeof (entry), &entry, DMU_READ_PREFETCH));
688 if (SM_DEBUG_DECODE(entry)) {
689
690 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
691 (u_longlong_t)(offset / sizeof (entry)),
692 ddata[SM_DEBUG_ACTION_DECODE(entry)],
693 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
694 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
695 } else {
696 (void) printf("\t [%6llu] %c range:"
697 " %010llx-%010llx size: %06llx\n",
698 (u_longlong_t)(offset / sizeof (entry)),
699 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
700 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
701 mapshift) + sm->sm_start),
702 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
703 mapshift) + sm->sm_start +
704 (SM_RUN_DECODE(entry) << mapshift)),
705 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
706 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
707 alloc += SM_RUN_DECODE(entry) << mapshift;
708 else
709 alloc -= SM_RUN_DECODE(entry) << mapshift;
710 }
711 }
712 if (alloc != space_map_allocated(sm)) {
713 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
714 "with space map summary (%llu)\n",
715 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
716 }
717 }
718
719 static void
720 dump_metaslab_stats(metaslab_t *msp)
721 {
722 char maxbuf[32];
723 range_tree_t *rt = msp->ms_tree;
724 avl_tree_t *t = &msp->ms_size_tree;
725 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
726
727 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
728
729 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
730 "segments", avl_numnodes(t), "maxsize", maxbuf,
731 "freepct", free_pct);
732 (void) printf("\tIn-memory histogram:\n");
733 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
734 }
735
736 static void
737 dump_metaslab(metaslab_t *msp)
738 {
739 vdev_t *vd = msp->ms_group->mg_vd;
740 spa_t *spa = vd->vdev_spa;
741 space_map_t *sm = msp->ms_sm;
742 char freebuf[32];
743
744 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
745
746 (void) printf(
747 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
748 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
749 (u_longlong_t)space_map_object(sm), freebuf);
750
751 if (dump_opt['m'] > 2 && !dump_opt['L']) {
752 mutex_enter(&msp->ms_lock);
753 metaslab_load_wait(msp);
754 if (!msp->ms_loaded) {
755 VERIFY0(metaslab_load(msp));
756 range_tree_stat_verify(msp->ms_tree);
757 }
758 dump_metaslab_stats(msp);
759 metaslab_unload(msp);
760 mutex_exit(&msp->ms_lock);
761 }
762
763 if (dump_opt['m'] > 1 && sm != NULL &&
764 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
765 /*
766 * The space map histogram represents free space in chunks
767 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
768 */
769 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
770 (u_longlong_t)msp->ms_fragmentation);
771 dump_histogram(sm->sm_phys->smp_histogram,
772 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
773 }
774
775 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
776 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
777
778 mutex_enter(&msp->ms_lock);
779 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
780 mutex_exit(&msp->ms_lock);
781 }
782 }
783
784 static void
785 print_vdev_metaslab_header(vdev_t *vd)
786 {
787 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
788 (u_longlong_t)vd->vdev_id,
789 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
790 "offset", "spacemap", "free");
791 (void) printf("\t%15s %19s %15s %10s\n",
792 "---------------", "-------------------",
793 "---------------", "-------------");
794 }
795
796 static void
797 dump_metaslab_groups(spa_t *spa)
798 {
799 vdev_t *rvd = spa->spa_root_vdev;
800 metaslab_class_t *mc = spa_normal_class(spa);
801 uint64_t fragmentation;
802
803 metaslab_class_histogram_verify(mc);
804
805 for (int c = 0; c < rvd->vdev_children; c++) {
806 vdev_t *tvd = rvd->vdev_child[c];
807 metaslab_group_t *mg = tvd->vdev_mg;
808
809 if (mg->mg_class != mc)
810 continue;
811
812 metaslab_group_histogram_verify(mg);
813 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
814
815 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
816 "fragmentation",
817 (u_longlong_t)tvd->vdev_id,
818 (u_longlong_t)tvd->vdev_ms_count);
819 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
820 (void) printf("%3s\n", "-");
821 } else {
822 (void) printf("%3llu%%\n",
823 (u_longlong_t)mg->mg_fragmentation);
824 }
825 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
826 }
827
828 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
829 fragmentation = metaslab_class_fragmentation(mc);
830 if (fragmentation == ZFS_FRAG_INVALID)
831 (void) printf("\t%3s\n", "-");
832 else
833 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
834 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
835 }
836
837 static void
838 dump_metaslabs(spa_t *spa)
839 {
840 vdev_t *vd, *rvd = spa->spa_root_vdev;
841 uint64_t m, c = 0, children = rvd->vdev_children;
842
843 (void) printf("\nMetaslabs:\n");
844
845 if (!dump_opt['d'] && zopt_objects > 0) {
846 c = zopt_object[0];
847
848 if (c >= children)
849 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
850
851 if (zopt_objects > 1) {
852 vd = rvd->vdev_child[c];
853 print_vdev_metaslab_header(vd);
854
855 for (m = 1; m < zopt_objects; m++) {
856 if (zopt_object[m] < vd->vdev_ms_count)
857 dump_metaslab(
858 vd->vdev_ms[zopt_object[m]]);
859 else
860 (void) fprintf(stderr, "bad metaslab "
861 "number %llu\n",
862 (u_longlong_t)zopt_object[m]);
863 }
864 (void) printf("\n");
865 return;
866 }
867 children = c + 1;
868 }
869 for (; c < children; c++) {
870 vd = rvd->vdev_child[c];
871 print_vdev_metaslab_header(vd);
872
873 for (m = 0; m < vd->vdev_ms_count; m++)
874 dump_metaslab(vd->vdev_ms[m]);
875 (void) printf("\n");
876 }
877 }
878
879 static void
880 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
881 {
882 const ddt_phys_t *ddp = dde->dde_phys;
883 const ddt_key_t *ddk = &dde->dde_key;
884 char *types[4] = { "ditto", "single", "double", "triple" };
885 char blkbuf[BP_SPRINTF_LEN];
886 blkptr_t blk;
887
888 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
889 if (ddp->ddp_phys_birth == 0)
890 continue;
891 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
892 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
893 (void) printf("index %llx refcnt %llu %s %s\n",
894 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
895 types[p], blkbuf);
896 }
897 }
898
899 static void
900 dump_dedup_ratio(const ddt_stat_t *dds)
901 {
902 double rL, rP, rD, D, dedup, compress, copies;
903
904 if (dds->dds_blocks == 0)
905 return;
906
907 rL = (double)dds->dds_ref_lsize;
908 rP = (double)dds->dds_ref_psize;
909 rD = (double)dds->dds_ref_dsize;
910 D = (double)dds->dds_dsize;
911
912 dedup = rD / D;
913 compress = rL / rP;
914 copies = rD / rP;
915
916 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
917 "dedup * compress / copies = %.2f\n\n",
918 dedup, compress, copies, dedup * compress / copies);
919 }
920
921 static void
922 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
923 {
924 char name[DDT_NAMELEN];
925 ddt_entry_t dde;
926 uint64_t walk = 0;
927 dmu_object_info_t doi;
928 uint64_t count, dspace, mspace;
929 int error;
930
931 error = ddt_object_info(ddt, type, class, &doi);
932
933 if (error == ENOENT)
934 return;
935 ASSERT(error == 0);
936
937 if ((count = ddt_object_count(ddt, type, class)) == 0)
938 return;
939
940 dspace = doi.doi_physical_blocks_512 << 9;
941 mspace = doi.doi_fill_count * doi.doi_data_block_size;
942
943 ddt_object_name(ddt, type, class, name);
944
945 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
946 name,
947 (u_longlong_t)count,
948 (u_longlong_t)(dspace / count),
949 (u_longlong_t)(mspace / count));
950
951 if (dump_opt['D'] < 3)
952 return;
953
954 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
955
956 if (dump_opt['D'] < 4)
957 return;
958
959 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
960 return;
961
962 (void) printf("%s contents:\n\n", name);
963
964 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
965 dump_dde(ddt, &dde, walk);
966
967 ASSERT(error == ENOENT);
968
969 (void) printf("\n");
970 }
971
972 static void
973 dump_all_ddts(spa_t *spa)
974 {
975 ddt_histogram_t ddh_total = { 0 };
976 ddt_stat_t dds_total = { 0 };
977
978 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
979 ddt_t *ddt = spa->spa_ddt[c];
980 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
981 for (enum ddt_class class = 0; class < DDT_CLASSES;
982 class++) {
983 dump_ddt(ddt, type, class);
984 }
985 }
986 }
987
988 ddt_get_dedup_stats(spa, &dds_total);
989
990 if (dds_total.dds_blocks == 0) {
991 (void) printf("All DDTs are empty\n");
992 return;
993 }
994
995 (void) printf("\n");
996
997 if (dump_opt['D'] > 1) {
998 (void) printf("DDT histogram (aggregated over all DDTs):\n");
999 ddt_get_dedup_histogram(spa, &ddh_total);
1000 zpool_dump_ddt(&dds_total, &ddh_total);
1001 }
1002
1003 dump_dedup_ratio(&dds_total);
1004 }
1005
1006 static void
1007 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1008 {
1009 char *prefix = arg;
1010
1011 (void) printf("%s [%llu,%llu) length %llu\n",
1012 prefix,
1013 (u_longlong_t)start,
1014 (u_longlong_t)(start + size),
1015 (u_longlong_t)(size));
1016 }
1017
1018 static void
1019 dump_dtl(vdev_t *vd, int indent)
1020 {
1021 spa_t *spa = vd->vdev_spa;
1022 boolean_t required;
1023 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
1024 char prefix[256];
1025
1026 spa_vdev_state_enter(spa, SCL_NONE);
1027 required = vdev_dtl_required(vd);
1028 (void) spa_vdev_state_exit(spa, NULL, 0);
1029
1030 if (indent == 0)
1031 (void) printf("\nDirty time logs:\n\n");
1032
1033 (void) printf("\t%*s%s [%s]\n", indent, "",
1034 vd->vdev_path ? vd->vdev_path :
1035 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1036 required ? "DTL-required" : "DTL-expendable");
1037
1038 for (int t = 0; t < DTL_TYPES; t++) {
1039 range_tree_t *rt = vd->vdev_dtl[t];
1040 if (range_tree_space(rt) == 0)
1041 continue;
1042 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1043 indent + 2, "", name[t]);
1044 mutex_enter(rt->rt_lock);
1045 range_tree_walk(rt, dump_dtl_seg, prefix);
1046 mutex_exit(rt->rt_lock);
1047 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1048 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm);
1049 }
1050
1051 for (int c = 0; c < vd->vdev_children; c++)
1052 dump_dtl(vd->vdev_child[c], indent + 4);
1053 }
1054
1055 static void
1056 dump_history(spa_t *spa)
1057 {
1058 nvlist_t **events = NULL;
1059 char buf[SPA_MAXBLOCKSIZE];
1060 uint64_t resid, len, off = 0;
1061 uint_t num = 0;
1062 int error;
1063 time_t tsec;
1064 struct tm t;
1065 char tbuf[30];
1066 char internalstr[MAXPATHLEN];
1067
1068 do {
1069 len = sizeof (buf);
1070
1071 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1072 (void) fprintf(stderr, "Unable to read history: "
1073 "error %d\n", error);
1074 return;
1075 }
1076
1077 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1078 break;
1079
1080 off -= resid;
1081 } while (len != 0);
1082
1083 (void) printf("\nHistory:\n");
1084 for (int i = 0; i < num; i++) {
1085 uint64_t time, txg, ievent;
1086 char *cmd, *intstr;
1087 boolean_t printed = B_FALSE;
1088
1089 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1090 &time) != 0)
1091 goto next;
1092 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1093 &cmd) != 0) {
1094 if (nvlist_lookup_uint64(events[i],
1095 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1096 goto next;
1097 verify(nvlist_lookup_uint64(events[i],
1098 ZPOOL_HIST_TXG, &txg) == 0);
1099 verify(nvlist_lookup_string(events[i],
1100 ZPOOL_HIST_INT_STR, &intstr) == 0);
1101 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1102 goto next;
1103
1104 (void) snprintf(internalstr,
1105 sizeof (internalstr),
1106 "[internal %s txg:%lld] %s",
1107 zfs_history_event_names[ievent], txg,
1108 intstr);
1109 cmd = internalstr;
1110 }
1111 tsec = time;
1112 (void) localtime_r(&tsec, &t);
1113 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1114 (void) printf("%s %s\n", tbuf, cmd);
1115 printed = B_TRUE;
1116
1117 next:
1118 if (dump_opt['h'] > 1) {
1119 if (!printed)
1120 (void) printf("unrecognized record:\n");
1121 dump_nvlist(events[i], 2);
1122 }
1123 }
1124 }
1125
1126 /*ARGSUSED*/
1127 static void
1128 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1129 {
1130 }
1131
1132 static uint64_t
1133 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1134 const zbookmark_phys_t *zb)
1135 {
1136 if (dnp == NULL) {
1137 ASSERT(zb->zb_level < 0);
1138 if (zb->zb_object == 0)
1139 return (zb->zb_blkid);
1140 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1141 }
1142
1143 ASSERT(zb->zb_level >= 0);
1144
1145 return ((zb->zb_blkid <<
1146 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1147 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1148 }
1149
1150 static void
1151 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1152 {
1153 const dva_t *dva = bp->blk_dva;
1154 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1155
1156 if (dump_opt['b'] >= 6) {
1157 snprintf_blkptr(blkbuf, buflen, bp);
1158 return;
1159 }
1160
1161 if (BP_IS_EMBEDDED(bp)) {
1162 (void) sprintf(blkbuf,
1163 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1164 (int)BPE_GET_ETYPE(bp),
1165 (u_longlong_t)BPE_GET_LSIZE(bp),
1166 (u_longlong_t)BPE_GET_PSIZE(bp),
1167 (u_longlong_t)bp->blk_birth);
1168 return;
1169 }
1170
1171 blkbuf[0] = '\0';
1172 for (int i = 0; i < ndvas; i++)
1173 (void) snprintf(blkbuf + strlen(blkbuf),
1174 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1175 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1176 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1177 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1178
1179 if (BP_IS_HOLE(bp)) {
1180 (void) snprintf(blkbuf + strlen(blkbuf),
1181 buflen - strlen(blkbuf),
1182 "%llxL B=%llu",
1183 (u_longlong_t)BP_GET_LSIZE(bp),
1184 (u_longlong_t)bp->blk_birth);
1185 } else {
1186 (void) snprintf(blkbuf + strlen(blkbuf),
1187 buflen - strlen(blkbuf),
1188 "%llxL/%llxP F=%llu B=%llu/%llu",
1189 (u_longlong_t)BP_GET_LSIZE(bp),
1190 (u_longlong_t)BP_GET_PSIZE(bp),
1191 (u_longlong_t)BP_GET_FILL(bp),
1192 (u_longlong_t)bp->blk_birth,
1193 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1194 }
1195 }
1196
1197 static void
1198 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1199 const dnode_phys_t *dnp)
1200 {
1201 char blkbuf[BP_SPRINTF_LEN];
1202 int l;
1203
1204 if (!BP_IS_EMBEDDED(bp)) {
1205 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1206 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1207 }
1208
1209 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1210
1211 ASSERT(zb->zb_level >= 0);
1212
1213 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1214 if (l == zb->zb_level) {
1215 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1216 } else {
1217 (void) printf(" ");
1218 }
1219 }
1220
1221 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1222 (void) printf("%s\n", blkbuf);
1223 }
1224
1225 static int
1226 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1227 blkptr_t *bp, const zbookmark_phys_t *zb)
1228 {
1229 int err = 0;
1230
1231 if (bp->blk_birth == 0)
1232 return (0);
1233
1234 print_indirect(bp, zb, dnp);
1235
1236 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1237 arc_flags_t flags = ARC_FLAG_WAIT;
1238 int i;
1239 blkptr_t *cbp;
1240 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1241 arc_buf_t *buf;
1242 uint64_t fill = 0;
1243
1244 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1245 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1246 if (err)
1247 return (err);
1248 ASSERT(buf->b_data);
1249
1250 /* recursively visit blocks below this */
1251 cbp = buf->b_data;
1252 for (i = 0; i < epb; i++, cbp++) {
1253 zbookmark_phys_t czb;
1254
1255 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1256 zb->zb_level - 1,
1257 zb->zb_blkid * epb + i);
1258 err = visit_indirect(spa, dnp, cbp, &czb);
1259 if (err)
1260 break;
1261 fill += BP_GET_FILL(cbp);
1262 }
1263 if (!err)
1264 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1265 (void) arc_buf_remove_ref(buf, &buf);
1266 }
1267
1268 return (err);
1269 }
1270
1271 /*ARGSUSED*/
1272 static void
1273 dump_indirect(dnode_t *dn)
1274 {
1275 dnode_phys_t *dnp = dn->dn_phys;
1276 int j;
1277 zbookmark_phys_t czb;
1278
1279 (void) printf("Indirect blocks:\n");
1280
1281 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1282 dn->dn_object, dnp->dn_nlevels - 1, 0);
1283 for (j = 0; j < dnp->dn_nblkptr; j++) {
1284 czb.zb_blkid = j;
1285 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1286 &dnp->dn_blkptr[j], &czb);
1287 }
1288
1289 (void) printf("\n");
1290 }
1291
1292 /*ARGSUSED*/
1293 static void
1294 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1295 {
1296 dsl_dir_phys_t *dd = data;
1297 time_t crtime;
1298 char nice[32];
1299
1300 if (dd == NULL)
1301 return;
1302
1303 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1304
1305 crtime = dd->dd_creation_time;
1306 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1307 (void) printf("\t\thead_dataset_obj = %llu\n",
1308 (u_longlong_t)dd->dd_head_dataset_obj);
1309 (void) printf("\t\tparent_dir_obj = %llu\n",
1310 (u_longlong_t)dd->dd_parent_obj);
1311 (void) printf("\t\torigin_obj = %llu\n",
1312 (u_longlong_t)dd->dd_origin_obj);
1313 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1314 (u_longlong_t)dd->dd_child_dir_zapobj);
1315 zdb_nicenum(dd->dd_used_bytes, nice);
1316 (void) printf("\t\tused_bytes = %s\n", nice);
1317 zdb_nicenum(dd->dd_compressed_bytes, nice);
1318 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1319 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1320 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1321 zdb_nicenum(dd->dd_quota, nice);
1322 (void) printf("\t\tquota = %s\n", nice);
1323 zdb_nicenum(dd->dd_reserved, nice);
1324 (void) printf("\t\treserved = %s\n", nice);
1325 (void) printf("\t\tprops_zapobj = %llu\n",
1326 (u_longlong_t)dd->dd_props_zapobj);
1327 (void) printf("\t\tdeleg_zapobj = %llu\n",
1328 (u_longlong_t)dd->dd_deleg_zapobj);
1329 (void) printf("\t\tflags = %llx\n",
1330 (u_longlong_t)dd->dd_flags);
1331
1332 #define DO(which) \
1333 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1334 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1335 DO(HEAD);
1336 DO(SNAP);
1337 DO(CHILD);
1338 DO(CHILD_RSRV);
1339 DO(REFRSRV);
1340 #undef DO
1341 }
1342
1343 /*ARGSUSED*/
1344 static void
1345 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1346 {
1347 dsl_dataset_phys_t *ds = data;
1348 time_t crtime;
1349 char used[32], compressed[32], uncompressed[32], unique[32];
1350 char blkbuf[BP_SPRINTF_LEN];
1351
1352 if (ds == NULL)
1353 return;
1354
1355 ASSERT(size == sizeof (*ds));
1356 crtime = ds->ds_creation_time;
1357 zdb_nicenum(ds->ds_referenced_bytes, used);
1358 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1359 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1360 zdb_nicenum(ds->ds_unique_bytes, unique);
1361 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1362
1363 (void) printf("\t\tdir_obj = %llu\n",
1364 (u_longlong_t)ds->ds_dir_obj);
1365 (void) printf("\t\tprev_snap_obj = %llu\n",
1366 (u_longlong_t)ds->ds_prev_snap_obj);
1367 (void) printf("\t\tprev_snap_txg = %llu\n",
1368 (u_longlong_t)ds->ds_prev_snap_txg);
1369 (void) printf("\t\tnext_snap_obj = %llu\n",
1370 (u_longlong_t)ds->ds_next_snap_obj);
1371 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1372 (u_longlong_t)ds->ds_snapnames_zapobj);
1373 (void) printf("\t\tnum_children = %llu\n",
1374 (u_longlong_t)ds->ds_num_children);
1375 (void) printf("\t\tuserrefs_obj = %llu\n",
1376 (u_longlong_t)ds->ds_userrefs_obj);
1377 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1378 (void) printf("\t\tcreation_txg = %llu\n",
1379 (u_longlong_t)ds->ds_creation_txg);
1380 (void) printf("\t\tdeadlist_obj = %llu\n",
1381 (u_longlong_t)ds->ds_deadlist_obj);
1382 (void) printf("\t\tused_bytes = %s\n", used);
1383 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1384 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1385 (void) printf("\t\tunique = %s\n", unique);
1386 (void) printf("\t\tfsid_guid = %llu\n",
1387 (u_longlong_t)ds->ds_fsid_guid);
1388 (void) printf("\t\tguid = %llu\n",
1389 (u_longlong_t)ds->ds_guid);
1390 (void) printf("\t\tflags = %llx\n",
1391 (u_longlong_t)ds->ds_flags);
1392 (void) printf("\t\tnext_clones_obj = %llu\n",
1393 (u_longlong_t)ds->ds_next_clones_obj);
1394 (void) printf("\t\tprops_obj = %llu\n",
1395 (u_longlong_t)ds->ds_props_obj);
1396 (void) printf("\t\tbp = %s\n", blkbuf);
1397 }
1398
1399 /* ARGSUSED */
1400 static int
1401 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1402 {
1403 char blkbuf[BP_SPRINTF_LEN];
1404
1405 if (bp->blk_birth != 0) {
1406 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1407 (void) printf("\t%s\n", blkbuf);
1408 }
1409 return (0);
1410 }
1411
1412 static void
1413 dump_bptree(objset_t *os, uint64_t obj, char *name)
1414 {
1415 char bytes[32];
1416 bptree_phys_t *bt;
1417 dmu_buf_t *db;
1418
1419 if (dump_opt['d'] < 3)
1420 return;
1421
1422 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1423 bt = db->db_data;
1424 zdb_nicenum(bt->bt_bytes, bytes);
1425 (void) printf("\n %s: %llu datasets, %s\n",
1426 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1427 dmu_buf_rele(db, FTAG);
1428
1429 if (dump_opt['d'] < 5)
1430 return;
1431
1432 (void) printf("\n");
1433
1434 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1435 }
1436
1437 /* ARGSUSED */
1438 static int
1439 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1440 {
1441 char blkbuf[BP_SPRINTF_LEN];
1442
1443 ASSERT(bp->blk_birth != 0);
1444 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1445 (void) printf("\t%s\n", blkbuf);
1446 return (0);
1447 }
1448
1449 static void
1450 dump_full_bpobj(bpobj_t *bpo, char *name, int indent)
1451 {
1452 char bytes[32];
1453 char comp[32];
1454 char uncomp[32];
1455
1456 if (dump_opt['d'] < 3)
1457 return;
1458
1459 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1460 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1461 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1462 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1463 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1464 "%llu subobjs in object %llu, %s (%s/%s comp)\n",
1465 indent * 8, name,
1466 (u_longlong_t)bpo->bpo_object,
1467 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1468 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1469 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1470 bytes, comp, uncomp);
1471
1472 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1473 uint64_t subobj;
1474 bpobj_t subbpo;
1475 int error;
1476 VERIFY0(dmu_read(bpo->bpo_os,
1477 bpo->bpo_phys->bpo_subobjs,
1478 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1479 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1480 if (error != 0) {
1481 (void) printf("ERROR %u while trying to open "
1482 "subobj id %llu\n",
1483 error, (u_longlong_t)subobj);
1484 continue;
1485 }
1486 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1487 bpobj_close(&subbpo);
1488 }
1489 } else {
1490 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1491 indent * 8, name,
1492 (u_longlong_t)bpo->bpo_object,
1493 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1494 bytes);
1495 }
1496
1497 if (dump_opt['d'] < 5)
1498 return;
1499
1500
1501 if (indent == 0) {
1502 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1503 (void) printf("\n");
1504 }
1505 }
1506
1507 static void
1508 dump_deadlist(dsl_deadlist_t *dl)
1509 {
1510 dsl_deadlist_entry_t *dle;
1511 uint64_t unused;
1512 char bytes[32];
1513 char comp[32];
1514 char uncomp[32];
1515
1516 if (dump_opt['d'] < 3)
1517 return;
1518
1519 if (dl->dl_oldfmt) {
1520 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1521 return;
1522 }
1523
1524 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1525 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1526 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1527 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1528 bytes, comp, uncomp);
1529
1530 if (dump_opt['d'] < 4)
1531 return;
1532
1533 (void) printf("\n");
1534
1535 /* force the tree to be loaded */
1536 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1537
1538 for (dle = avl_first(&dl->dl_tree); dle;
1539 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1540 if (dump_opt['d'] >= 5) {
1541 char buf[128];
1542 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ",
1543 (longlong_t)dle->dle_mintxg,
1544 (longlong_t)dle->dle_bpobj.bpo_object);
1545
1546 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1547 } else {
1548 (void) printf("mintxg %llu -> obj %llu\n",
1549 (longlong_t)dle->dle_mintxg,
1550 (longlong_t)dle->dle_bpobj.bpo_object);
1551
1552 }
1553 }
1554 }
1555
1556 static avl_tree_t idx_tree;
1557 static avl_tree_t domain_tree;
1558 static boolean_t fuid_table_loaded;
1559 static boolean_t sa_loaded;
1560 sa_attr_type_t *sa_attr_table;
1561
1562 static void
1563 fuid_table_destroy()
1564 {
1565 if (fuid_table_loaded) {
1566 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1567 fuid_table_loaded = B_FALSE;
1568 }
1569 }
1570
1571 /*
1572 * print uid or gid information.
1573 * For normal POSIX id just the id is printed in decimal format.
1574 * For CIFS files with FUID the fuid is printed in hex followed by
1575 * the domain-rid string.
1576 */
1577 static void
1578 print_idstr(uint64_t id, const char *id_type)
1579 {
1580 if (FUID_INDEX(id)) {
1581 char *domain;
1582
1583 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1584 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1585 (u_longlong_t)id, domain, (int)FUID_RID(id));
1586 } else {
1587 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1588 }
1589
1590 }
1591
1592 static void
1593 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1594 {
1595 uint32_t uid_idx, gid_idx;
1596
1597 uid_idx = FUID_INDEX(uid);
1598 gid_idx = FUID_INDEX(gid);
1599
1600 /* Load domain table, if not already loaded */
1601 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1602 uint64_t fuid_obj;
1603
1604 /* first find the fuid object. It lives in the master node */
1605 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1606 8, 1, &fuid_obj) == 0);
1607 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1608 (void) zfs_fuid_table_load(os, fuid_obj,
1609 &idx_tree, &domain_tree);
1610 fuid_table_loaded = B_TRUE;
1611 }
1612
1613 print_idstr(uid, "uid");
1614 print_idstr(gid, "gid");
1615 }
1616
1617 /*ARGSUSED*/
1618 static void
1619 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1620 {
1621 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1622 sa_handle_t *hdl;
1623 uint64_t xattr, rdev, gen;
1624 uint64_t uid, gid, mode, fsize, parent, links;
1625 uint64_t pflags;
1626 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1627 time_t z_crtime, z_atime, z_mtime, z_ctime;
1628 sa_bulk_attr_t bulk[12];
1629 int idx = 0;
1630 int error;
1631
1632 if (!sa_loaded) {
1633 uint64_t sa_attrs = 0;
1634 uint64_t version;
1635
1636 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1637 8, 1, &version) == 0);
1638 if (version >= ZPL_VERSION_SA) {
1639 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1640 8, 1, &sa_attrs) == 0);
1641 }
1642 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1643 ZPL_END, &sa_attr_table)) != 0) {
1644 (void) printf("sa_setup failed errno %d, can't "
1645 "display znode contents\n", error);
1646 return;
1647 }
1648 sa_loaded = B_TRUE;
1649 }
1650
1651 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1652 (void) printf("Failed to get handle for SA znode\n");
1653 return;
1654 }
1655
1656 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1657 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1658 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1659 &links, 8);
1660 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1661 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1662 &mode, 8);
1663 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1664 NULL, &parent, 8);
1665 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1666 &fsize, 8);
1667 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1668 acctm, 16);
1669 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1670 modtm, 16);
1671 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1672 crtm, 16);
1673 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1674 chgtm, 16);
1675 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1676 &pflags, 8);
1677
1678 if (sa_bulk_lookup(hdl, bulk, idx)) {
1679 (void) sa_handle_destroy(hdl);
1680 return;
1681 }
1682
1683 error = zfs_obj_to_path(os, object, path, sizeof (path));
1684 if (error != 0) {
1685 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1686 (u_longlong_t)object);
1687 }
1688 if (dump_opt['d'] < 3) {
1689 (void) printf("\t%s\n", path);
1690 (void) sa_handle_destroy(hdl);
1691 return;
1692 }
1693
1694 z_crtime = (time_t)crtm[0];
1695 z_atime = (time_t)acctm[0];
1696 z_mtime = (time_t)modtm[0];
1697 z_ctime = (time_t)chgtm[0];
1698
1699 (void) printf("\tpath %s\n", path);
1700 dump_uidgid(os, uid, gid);
1701 (void) printf("\tatime %s", ctime(&z_atime));
1702 (void) printf("\tmtime %s", ctime(&z_mtime));
1703 (void) printf("\tctime %s", ctime(&z_ctime));
1704 (void) printf("\tcrtime %s", ctime(&z_crtime));
1705 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1706 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1707 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1708 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1709 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1710 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1711 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1712 sizeof (uint64_t)) == 0)
1713 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1714 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1715 sizeof (uint64_t)) == 0)
1716 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1717 sa_handle_destroy(hdl);
1718 }
1719
1720 /*ARGSUSED*/
1721 static void
1722 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1723 {
1724 }
1725
1726 /*ARGSUSED*/
1727 static void
1728 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1729 {
1730 }
1731
1732 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1733 dump_none, /* unallocated */
1734 dump_zap, /* object directory */
1735 dump_uint64, /* object array */
1736 dump_none, /* packed nvlist */
1737 dump_packed_nvlist, /* packed nvlist size */
1738 dump_none, /* bpobj */
1739 dump_bpobj, /* bpobj header */
1740 dump_none, /* SPA space map header */
1741 dump_none, /* SPA space map */
1742 dump_none, /* ZIL intent log */
1743 dump_dnode, /* DMU dnode */
1744 dump_dmu_objset, /* DMU objset */
1745 dump_dsl_dir, /* DSL directory */
1746 dump_zap, /* DSL directory child map */
1747 dump_zap, /* DSL dataset snap map */
1748 dump_zap, /* DSL props */
1749 dump_dsl_dataset, /* DSL dataset */
1750 dump_znode, /* ZFS znode */
1751 dump_acl, /* ZFS V0 ACL */
1752 dump_uint8, /* ZFS plain file */
1753 dump_zpldir, /* ZFS directory */
1754 dump_zap, /* ZFS master node */
1755 dump_zap, /* ZFS delete queue */
1756 dump_uint8, /* zvol object */
1757 dump_zap, /* zvol prop */
1758 dump_uint8, /* other uint8[] */
1759 dump_uint64, /* other uint64[] */
1760 dump_zap, /* other ZAP */
1761 dump_zap, /* persistent error log */
1762 dump_uint8, /* SPA history */
1763 dump_history_offsets, /* SPA history offsets */
1764 dump_zap, /* Pool properties */
1765 dump_zap, /* DSL permissions */
1766 dump_acl, /* ZFS ACL */
1767 dump_uint8, /* ZFS SYSACL */
1768 dump_none, /* FUID nvlist */
1769 dump_packed_nvlist, /* FUID nvlist size */
1770 dump_zap, /* DSL dataset next clones */
1771 dump_zap, /* DSL scrub queue */
1772 dump_zap, /* ZFS user/group used */
1773 dump_zap, /* ZFS user/group quota */
1774 dump_zap, /* snapshot refcount tags */
1775 dump_ddt_zap, /* DDT ZAP object */
1776 dump_zap, /* DDT statistics */
1777 dump_znode, /* SA object */
1778 dump_zap, /* SA Master Node */
1779 dump_sa_attrs, /* SA attribute registration */
1780 dump_sa_layouts, /* SA attribute layouts */
1781 dump_zap, /* DSL scrub translations */
1782 dump_none, /* fake dedup BP */
1783 dump_zap, /* deadlist */
1784 dump_none, /* deadlist hdr */
1785 dump_zap, /* dsl clones */
1786 dump_bpobj_subobjs, /* bpobj subobjs */
1787 dump_unknown, /* Unknown type, must be last */
1788 };
1789
1790 static void
1791 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1792 {
1793 dmu_buf_t *db = NULL;
1794 dmu_object_info_t doi;
1795 dnode_t *dn;
1796 void *bonus = NULL;
1797 size_t bsize = 0;
1798 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1799 char bonus_size[32];
1800 char aux[50];
1801 int error;
1802
1803 if (*print_header) {
1804 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1805 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1806 "%full", "type");
1807 *print_header = 0;
1808 }
1809
1810 if (object == 0) {
1811 dn = DMU_META_DNODE(os);
1812 } else {
1813 error = dmu_bonus_hold(os, object, FTAG, &db);
1814 if (error)
1815 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1816 object, error);
1817 bonus = db->db_data;
1818 bsize = db->db_size;
1819 dn = DB_DNODE((dmu_buf_impl_t *)db);
1820 }
1821 dmu_object_info_from_dnode(dn, &doi);
1822
1823 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1824 zdb_nicenum(doi.doi_data_block_size, dblk);
1825 zdb_nicenum(doi.doi_max_offset, lsize);
1826 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1827 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1828 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1829 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1830 doi.doi_max_offset);
1831
1832 aux[0] = '\0';
1833
1834 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1835 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1836 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1837 }
1838
1839 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1840 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1841 ZDB_COMPRESS_NAME(doi.doi_compress));
1842 }
1843
1844 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1845 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1846 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1847
1848 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1849 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1850 "", "", "", "", "", bonus_size, "bonus",
1851 ZDB_OT_NAME(doi.doi_bonus_type));
1852 }
1853
1854 if (verbosity >= 4) {
1855 (void) printf("\tdnode flags: %s%s%s\n",
1856 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1857 "USED_BYTES " : "",
1858 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1859 "USERUSED_ACCOUNTED " : "",
1860 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1861 "SPILL_BLKPTR" : "");
1862 (void) printf("\tdnode maxblkid: %llu\n",
1863 (longlong_t)dn->dn_phys->dn_maxblkid);
1864
1865 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1866 bonus, bsize);
1867 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1868 *print_header = 1;
1869 }
1870
1871 if (verbosity >= 5)
1872 dump_indirect(dn);
1873
1874 if (verbosity >= 5) {
1875 /*
1876 * Report the list of segments that comprise the object.
1877 */
1878 uint64_t start = 0;
1879 uint64_t end;
1880 uint64_t blkfill = 1;
1881 int minlvl = 1;
1882
1883 if (dn->dn_type == DMU_OT_DNODE) {
1884 minlvl = 0;
1885 blkfill = DNODES_PER_BLOCK;
1886 }
1887
1888 for (;;) {
1889 char segsize[32];
1890 error = dnode_next_offset(dn,
1891 0, &start, minlvl, blkfill, 0);
1892 if (error)
1893 break;
1894 end = start;
1895 error = dnode_next_offset(dn,
1896 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1897 zdb_nicenum(end - start, segsize);
1898 (void) printf("\t\tsegment [%016llx, %016llx)"
1899 " size %5s\n", (u_longlong_t)start,
1900 (u_longlong_t)end, segsize);
1901 if (error)
1902 break;
1903 start = end;
1904 }
1905 }
1906
1907 if (db != NULL)
1908 dmu_buf_rele(db, FTAG);
1909 }
1910
1911 static char *objset_types[DMU_OST_NUMTYPES] = {
1912 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1913
1914 static void
1915 dump_dir(objset_t *os)
1916 {
1917 dmu_objset_stats_t dds;
1918 uint64_t object, object_count;
1919 uint64_t refdbytes, usedobjs, scratch;
1920 char numbuf[32];
1921 char blkbuf[BP_SPRINTF_LEN + 20];
1922 char osname[MAXNAMELEN];
1923 char *type = "UNKNOWN";
1924 int verbosity = dump_opt['d'];
1925 int print_header = 1;
1926 int i, error;
1927
1928 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1929 dmu_objset_fast_stat(os, &dds);
1930 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1931
1932 if (dds.dds_type < DMU_OST_NUMTYPES)
1933 type = objset_types[dds.dds_type];
1934
1935 if (dds.dds_type == DMU_OST_META) {
1936 dds.dds_creation_txg = TXG_INITIAL;
1937 usedobjs = BP_GET_FILL(os->os_rootbp);
1938 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
1939 dd_used_bytes;
1940 } else {
1941 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1942 }
1943
1944 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1945
1946 zdb_nicenum(refdbytes, numbuf);
1947
1948 if (verbosity >= 4) {
1949 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
1950 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
1951 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
1952 } else {
1953 blkbuf[0] = '\0';
1954 }
1955
1956 dmu_objset_name(os, osname);
1957
1958 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1959 "%s, %llu objects%s\n",
1960 osname, type, (u_longlong_t)dmu_objset_id(os),
1961 (u_longlong_t)dds.dds_creation_txg,
1962 numbuf, (u_longlong_t)usedobjs, blkbuf);
1963
1964 if (zopt_objects != 0) {
1965 for (i = 0; i < zopt_objects; i++)
1966 dump_object(os, zopt_object[i], verbosity,
1967 &print_header);
1968 (void) printf("\n");
1969 return;
1970 }
1971
1972 if (dump_opt['i'] != 0 || verbosity >= 2)
1973 dump_intent_log(dmu_objset_zil(os));
1974
1975 if (dmu_objset_ds(os) != NULL)
1976 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1977
1978 if (verbosity < 2)
1979 return;
1980
1981 if (BP_IS_HOLE(os->os_rootbp))
1982 return;
1983
1984 dump_object(os, 0, verbosity, &print_header);
1985 object_count = 0;
1986 if (DMU_USERUSED_DNODE(os) != NULL &&
1987 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1988 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1989 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1990 }
1991
1992 object = 0;
1993 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1994 dump_object(os, object, verbosity, &print_header);
1995 object_count++;
1996 }
1997
1998 ASSERT3U(object_count, ==, usedobjs);
1999
2000 (void) printf("\n");
2001
2002 if (error != ESRCH) {
2003 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2004 abort();
2005 }
2006 }
2007
2008 static void
2009 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2010 {
2011 time_t timestamp = ub->ub_timestamp;
2012
2013 (void) printf(header ? header : "");
2014 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2015 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2016 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2017 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2018 (void) printf("\ttimestamp = %llu UTC = %s",
2019 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2020 if (dump_opt['u'] >= 3) {
2021 char blkbuf[BP_SPRINTF_LEN];
2022 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2023 (void) printf("\trootbp = %s\n", blkbuf);
2024 }
2025 (void) printf(footer ? footer : "");
2026 }
2027
2028 static void
2029 dump_config(spa_t *spa)
2030 {
2031 dmu_buf_t *db;
2032 size_t nvsize = 0;
2033 int error = 0;
2034
2035
2036 error = dmu_bonus_hold(spa->spa_meta_objset,
2037 spa->spa_config_object, FTAG, &db);
2038
2039 if (error == 0) {
2040 nvsize = *(uint64_t *)db->db_data;
2041 dmu_buf_rele(db, FTAG);
2042
2043 (void) printf("\nMOS Configuration:\n");
2044 dump_packed_nvlist(spa->spa_meta_objset,
2045 spa->spa_config_object, (void *)&nvsize, 1);
2046 } else {
2047 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2048 (u_longlong_t)spa->spa_config_object, error);
2049 }
2050 }
2051
2052 static void
2053 dump_cachefile(const char *cachefile)
2054 {
2055 int fd;
2056 struct stat64 statbuf;
2057 char *buf;
2058 nvlist_t *config;
2059
2060 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2061 (void) printf("cannot open '%s': %s\n", cachefile,
2062 strerror(errno));
2063 exit(1);
2064 }
2065
2066 if (fstat64(fd, &statbuf) != 0) {
2067 (void) printf("failed to stat '%s': %s\n", cachefile,
2068 strerror(errno));
2069 exit(1);
2070 }
2071
2072 if ((buf = malloc(statbuf.st_size)) == NULL) {
2073 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2074 (u_longlong_t)statbuf.st_size);
2075 exit(1);
2076 }
2077
2078 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2079 (void) fprintf(stderr, "failed to read %llu bytes\n",
2080 (u_longlong_t)statbuf.st_size);
2081 exit(1);
2082 }
2083
2084 (void) close(fd);
2085
2086 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2087 (void) fprintf(stderr, "failed to unpack nvlist\n");
2088 exit(1);
2089 }
2090
2091 free(buf);
2092
2093 dump_nvlist(config, 0);
2094
2095 nvlist_free(config);
2096 }
2097
2098 #define ZDB_MAX_UB_HEADER_SIZE 32
2099
2100 static void
2101 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2102 {
2103 vdev_t vd;
2104 vdev_t *vdp = &vd;
2105 char header[ZDB_MAX_UB_HEADER_SIZE];
2106
2107 vd.vdev_ashift = ashift;
2108 vdp->vdev_top = vdp;
2109
2110 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2111 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2112 uberblock_t *ub = (void *)((char *)lbl + uoff);
2113
2114 if (uberblock_verify(ub))
2115 continue;
2116 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2117 "Uberblock[%d]\n", i);
2118 dump_uberblock(ub, header, "");
2119 }
2120 }
2121
2122 static void
2123 dump_label(const char *dev)
2124 {
2125 int fd;
2126 vdev_label_t label;
2127 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
2128 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2129 struct stat64 statbuf;
2130 uint64_t psize, ashift;
2131 int len = strlen(dev) + 1;
2132
2133 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
2134 len++;
2135 path = malloc(len);
2136 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
2137 } else {
2138 path = strdup(dev);
2139 }
2140
2141 if ((fd = open64(path, O_RDONLY)) < 0) {
2142 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2143 free(path);
2144 exit(1);
2145 }
2146
2147 if (fstat64(fd, &statbuf) != 0) {
2148 (void) printf("failed to stat '%s': %s\n", path,
2149 strerror(errno));
2150 free(path);
2151 (void) close(fd);
2152 exit(1);
2153 }
2154
2155 if (S_ISBLK(statbuf.st_mode)) {
2156 (void) printf("cannot use '%s': character device required\n",
2157 path);
2158 free(path);
2159 (void) close(fd);
2160 exit(1);
2161 }
2162
2163 psize = statbuf.st_size;
2164 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2165
2166 for (int l = 0; l < VDEV_LABELS; l++) {
2167 nvlist_t *config = NULL;
2168
2169 (void) printf("--------------------------------------------\n");
2170 (void) printf("LABEL %d\n", l);
2171 (void) printf("--------------------------------------------\n");
2172
2173 if (pread64(fd, &label, sizeof (label),
2174 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2175 (void) printf("failed to read label %d\n", l);
2176 continue;
2177 }
2178
2179 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2180 (void) printf("failed to unpack label %d\n", l);
2181 ashift = SPA_MINBLOCKSHIFT;
2182 } else {
2183 nvlist_t *vdev_tree = NULL;
2184
2185 dump_nvlist(config, 4);
2186 if ((nvlist_lookup_nvlist(config,
2187 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2188 (nvlist_lookup_uint64(vdev_tree,
2189 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2190 ashift = SPA_MINBLOCKSHIFT;
2191 nvlist_free(config);
2192 }
2193 if (dump_opt['u'])
2194 dump_label_uberblocks(&label, ashift);
2195 }
2196
2197 free(path);
2198 (void) close(fd);
2199 }
2200
2201 static uint64_t num_large_blocks;
2202
2203 /*ARGSUSED*/
2204 static int
2205 dump_one_dir(const char *dsname, void *arg)
2206 {
2207 int error;
2208 objset_t *os;
2209
2210 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2211 if (error) {
2212 (void) printf("Could not open %s, error %d\n", dsname, error);
2213 return (0);
2214 }
2215 if (dmu_objset_ds(os)->ds_large_blocks)
2216 num_large_blocks++;
2217 dump_dir(os);
2218 dmu_objset_disown(os, FTAG);
2219 fuid_table_destroy();
2220 sa_loaded = B_FALSE;
2221 return (0);
2222 }
2223
2224 /*
2225 * Block statistics.
2226 */
2227 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
2228 typedef struct zdb_blkstats {
2229 uint64_t zb_asize;
2230 uint64_t zb_lsize;
2231 uint64_t zb_psize;
2232 uint64_t zb_count;
2233 uint64_t zb_gangs;
2234 uint64_t zb_ditto_samevdev;
2235 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2236 } zdb_blkstats_t;
2237
2238 /*
2239 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2240 */
2241 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2242 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2243 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2244 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2245
2246 static char *zdb_ot_extname[] = {
2247 "deferred free",
2248 "dedup ditto",
2249 "other",
2250 "Total",
2251 };
2252
2253 #define ZB_TOTAL DN_MAX_LEVELS
2254
2255 typedef struct zdb_cb {
2256 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2257 uint64_t zcb_dedup_asize;
2258 uint64_t zcb_dedup_blocks;
2259 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2260 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2261 [BPE_PAYLOAD_SIZE];
2262 uint64_t zcb_start;
2263 uint64_t zcb_lastprint;
2264 uint64_t zcb_totalasize;
2265 uint64_t zcb_errors[256];
2266 int zcb_readfails;
2267 int zcb_haderrors;
2268 spa_t *zcb_spa;
2269 } zdb_cb_t;
2270
2271 static void
2272 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2273 dmu_object_type_t type)
2274 {
2275 uint64_t refcnt = 0;
2276
2277 ASSERT(type < ZDB_OT_TOTAL);
2278
2279 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2280 return;
2281
2282 for (int i = 0; i < 4; i++) {
2283 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2284 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2285 int equal;
2286 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2287
2288 zb->zb_asize += BP_GET_ASIZE(bp);
2289 zb->zb_lsize += BP_GET_LSIZE(bp);
2290 zb->zb_psize += BP_GET_PSIZE(bp);
2291 zb->zb_count++;
2292
2293 /*
2294 * The histogram is only big enough to record blocks up to
2295 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
2296 * "other", bucket.
2297 */
2298 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
2299 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
2300 zb->zb_psize_histogram[idx]++;
2301
2302 zb->zb_gangs += BP_COUNT_GANG(bp);
2303
2304 switch (BP_GET_NDVAS(bp)) {
2305 case 2:
2306 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2307 DVA_GET_VDEV(&bp->blk_dva[1]))
2308 zb->zb_ditto_samevdev++;
2309 break;
2310 case 3:
2311 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2312 DVA_GET_VDEV(&bp->blk_dva[1])) +
2313 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2314 DVA_GET_VDEV(&bp->blk_dva[2])) +
2315 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2316 DVA_GET_VDEV(&bp->blk_dva[2]));
2317 if (equal != 0)
2318 zb->zb_ditto_samevdev++;
2319 break;
2320 }
2321
2322 }
2323
2324 if (BP_IS_EMBEDDED(bp)) {
2325 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2326 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2327 [BPE_GET_PSIZE(bp)]++;
2328 return;
2329 }
2330
2331 if (dump_opt['L'])
2332 return;
2333
2334 if (BP_GET_DEDUP(bp)) {
2335 ddt_t *ddt;
2336 ddt_entry_t *dde;
2337
2338 ddt = ddt_select(zcb->zcb_spa, bp);
2339 ddt_enter(ddt);
2340 dde = ddt_lookup(ddt, bp, B_FALSE);
2341
2342 if (dde == NULL) {
2343 refcnt = 0;
2344 } else {
2345 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2346 ddt_phys_decref(ddp);
2347 refcnt = ddp->ddp_refcnt;
2348 if (ddt_phys_total_refcnt(dde) == 0)
2349 ddt_remove(ddt, dde);
2350 }
2351 ddt_exit(ddt);
2352 }
2353
2354 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2355 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2356 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2357 }
2358
2359 static void
2360 zdb_blkptr_done(zio_t *zio)
2361 {
2362 spa_t *spa = zio->io_spa;
2363 blkptr_t *bp = zio->io_bp;
2364 int ioerr = zio->io_error;
2365 zdb_cb_t *zcb = zio->io_private;
2366 zbookmark_phys_t *zb = &zio->io_bookmark;
2367
2368 zio_data_buf_free(zio->io_data, zio->io_size);
2369
2370 mutex_enter(&spa->spa_scrub_lock);
2371 spa->spa_scrub_inflight--;
2372 cv_broadcast(&spa->spa_scrub_io_cv);
2373
2374 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2375 char blkbuf[BP_SPRINTF_LEN];
2376
2377 zcb->zcb_haderrors = 1;
2378 zcb->zcb_errors[ioerr]++;
2379
2380 if (dump_opt['b'] >= 2)
2381 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2382 else
2383 blkbuf[0] = '\0';
2384
2385 (void) printf("zdb_blkptr_cb: "
2386 "Got error %d reading "
2387 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2388 ioerr,
2389 (u_longlong_t)zb->zb_objset,
2390 (u_longlong_t)zb->zb_object,
2391 (u_longlong_t)zb->zb_level,
2392 (u_longlong_t)zb->zb_blkid,
2393 blkbuf);
2394 }
2395 mutex_exit(&spa->spa_scrub_lock);
2396 }
2397
2398 static int
2399 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2400 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2401 {
2402 zdb_cb_t *zcb = arg;
2403 dmu_object_type_t type;
2404 boolean_t is_metadata;
2405
2406 if (bp == NULL)
2407 return (0);
2408
2409 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2410 char blkbuf[BP_SPRINTF_LEN];
2411 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2412 (void) printf("objset %llu object %llu "
2413 "level %lld offset 0x%llx %s\n",
2414 (u_longlong_t)zb->zb_objset,
2415 (u_longlong_t)zb->zb_object,
2416 (longlong_t)zb->zb_level,
2417 (u_longlong_t)blkid2offset(dnp, bp, zb),
2418 blkbuf);
2419 }
2420
2421 if (BP_IS_HOLE(bp))
2422 return (0);
2423
2424 type = BP_GET_TYPE(bp);
2425
2426 zdb_count_block(zcb, zilog, bp,
2427 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2428
2429 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2430
2431 if (!BP_IS_EMBEDDED(bp) &&
2432 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2433 size_t size = BP_GET_PSIZE(bp);
2434 void *data = zio_data_buf_alloc(size);
2435 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2436
2437 /* If it's an intent log block, failure is expected. */
2438 if (zb->zb_level == ZB_ZIL_LEVEL)
2439 flags |= ZIO_FLAG_SPECULATIVE;
2440
2441 mutex_enter(&spa->spa_scrub_lock);
2442 while (spa->spa_scrub_inflight > max_inflight)
2443 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2444 spa->spa_scrub_inflight++;
2445 mutex_exit(&spa->spa_scrub_lock);
2446
2447 zio_nowait(zio_read(NULL, spa, bp, data, size,
2448 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2449 }
2450
2451 zcb->zcb_readfails = 0;
2452
2453 /* only call gethrtime() every 100 blocks */
2454 static int iters;
2455 if (++iters > 100)
2456 iters = 0;
2457 else
2458 return (0);
2459
2460 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2461 uint64_t now = gethrtime();
2462 char buf[10];
2463 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2464 int kb_per_sec =
2465 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2466 int sec_remaining =
2467 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2468
2469 zfs_nicenum(bytes, buf, sizeof (buf));
2470 (void) fprintf(stderr,
2471 "\r%5s completed (%4dMB/s) "
2472 "estimated time remaining: %uhr %02umin %02usec ",
2473 buf, kb_per_sec / 1024,
2474 sec_remaining / 60 / 60,
2475 sec_remaining / 60 % 60,
2476 sec_remaining % 60);
2477
2478 zcb->zcb_lastprint = now;
2479 }
2480
2481 return (0);
2482 }
2483
2484 static void
2485 zdb_leak(void *arg, uint64_t start, uint64_t size)
2486 {
2487 vdev_t *vd = arg;
2488
2489 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2490 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2491 }
2492
2493 static metaslab_ops_t zdb_metaslab_ops = {
2494 NULL /* alloc */
2495 };
2496
2497 static void
2498 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2499 {
2500 ddt_bookmark_t ddb = { 0 };
2501 ddt_entry_t dde;
2502 int error;
2503
2504 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2505 blkptr_t blk;
2506 ddt_phys_t *ddp = dde.dde_phys;
2507
2508 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2509 return;
2510
2511 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2512
2513 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2514 if (ddp->ddp_phys_birth == 0)
2515 continue;
2516 ddt_bp_create(ddb.ddb_checksum,
2517 &dde.dde_key, ddp, &blk);
2518 if (p == DDT_PHYS_DITTO) {
2519 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2520 } else {
2521 zcb->zcb_dedup_asize +=
2522 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2523 zcb->zcb_dedup_blocks++;
2524 }
2525 }
2526 if (!dump_opt['L']) {
2527 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2528 ddt_enter(ddt);
2529 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2530 ddt_exit(ddt);
2531 }
2532 }
2533
2534 ASSERT(error == ENOENT);
2535 }
2536
2537 static void
2538 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2539 {
2540 zcb->zcb_spa = spa;
2541
2542 if (!dump_opt['L']) {
2543 vdev_t *rvd = spa->spa_root_vdev;
2544 for (uint64_t c = 0; c < rvd->vdev_children; c++) {
2545 vdev_t *vd = rvd->vdev_child[c];
2546 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
2547 metaslab_t *msp = vd->vdev_ms[m];
2548 mutex_enter(&msp->ms_lock);
2549 metaslab_unload(msp);
2550
2551 /*
2552 * For leak detection, we overload the metaslab
2553 * ms_tree to contain allocated segments
2554 * instead of free segments. As a result,
2555 * we can't use the normal metaslab_load/unload
2556 * interfaces.
2557 */
2558 if (msp->ms_sm != NULL) {
2559 (void) fprintf(stderr,
2560 "\rloading space map for "
2561 "vdev %llu of %llu, "
2562 "metaslab %llu of %llu ...",
2563 (longlong_t)c,
2564 (longlong_t)rvd->vdev_children,
2565 (longlong_t)m,
2566 (longlong_t)vd->vdev_ms_count);
2567
2568 msp->ms_ops = &zdb_metaslab_ops;
2569
2570 /*
2571 * We don't want to spend the CPU
2572 * manipulating the size-ordered
2573 * tree, so clear the range_tree
2574 * ops.
2575 */
2576 msp->ms_tree->rt_ops = NULL;
2577 VERIFY0(space_map_load(msp->ms_sm,
2578 msp->ms_tree, SM_ALLOC));
2579 msp->ms_loaded = B_TRUE;
2580 }
2581 mutex_exit(&msp->ms_lock);
2582 }
2583 }
2584 (void) fprintf(stderr, "\n");
2585 }
2586
2587 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2588
2589 zdb_ddt_leak_init(spa, zcb);
2590
2591 spa_config_exit(spa, SCL_CONFIG, FTAG);
2592 }
2593
2594 static void
2595 zdb_leak_fini(spa_t *spa)
2596 {
2597 if (!dump_opt['L']) {
2598 vdev_t *rvd = spa->spa_root_vdev;
2599 for (int c = 0; c < rvd->vdev_children; c++) {
2600 vdev_t *vd = rvd->vdev_child[c];
2601 for (int m = 0; m < vd->vdev_ms_count; m++) {
2602 metaslab_t *msp = vd->vdev_ms[m];
2603 mutex_enter(&msp->ms_lock);
2604
2605 /*
2606 * The ms_tree has been overloaded to
2607 * contain allocated segments. Now that we
2608 * finished traversing all blocks, any
2609 * block that remains in the ms_tree
2610 * represents an allocated block that we
2611 * did not claim during the traversal.
2612 * Claimed blocks would have been removed
2613 * from the ms_tree.
2614 */
2615 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2616 msp->ms_loaded = B_FALSE;
2617
2618 mutex_exit(&msp->ms_lock);
2619 }
2620 }
2621 }
2622 }
2623
2624 /* ARGSUSED */
2625 static int
2626 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2627 {
2628 zdb_cb_t *zcb = arg;
2629
2630 if (dump_opt['b'] >= 5) {
2631 char blkbuf[BP_SPRINTF_LEN];
2632 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2633 (void) printf("[%s] %s\n",
2634 "deferred free", blkbuf);
2635 }
2636 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2637 return (0);
2638 }
2639
2640 static int
2641 dump_block_stats(spa_t *spa)
2642 {
2643 zdb_cb_t zcb = { 0 };
2644 zdb_blkstats_t *zb, *tzb;
2645 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2646 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2647 boolean_t leaks = B_FALSE;
2648
2649 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2650 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2651 (dump_opt['c'] == 1) ? "metadata " : "",
2652 dump_opt['c'] ? "checksums " : "",
2653 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2654 !dump_opt['L'] ? "nothing leaked " : "");
2655
2656 /*
2657 * Load all space maps as SM_ALLOC maps, then traverse the pool
2658 * claiming each block we discover. If the pool is perfectly
2659 * consistent, the space maps will be empty when we're done.
2660 * Anything left over is a leak; any block we can't claim (because
2661 * it's not part of any space map) is a double allocation,
2662 * reference to a freed block, or an unclaimed log block.
2663 */
2664 zdb_leak_init(spa, &zcb);
2665
2666 /*
2667 * If there's a deferred-free bplist, process that first.
2668 */
2669 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2670 count_block_cb, &zcb, NULL);
2671 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2672 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2673 count_block_cb, &zcb, NULL);
2674 }
2675 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2676 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2677 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2678 &zcb, NULL));
2679 }
2680
2681 if (dump_opt['c'] > 1)
2682 flags |= TRAVERSE_PREFETCH_DATA;
2683
2684 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2685 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2686 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2687
2688 /*
2689 * If we've traversed the data blocks then we need to wait for those
2690 * I/Os to complete. We leverage "The Godfather" zio to wait on
2691 * all async I/Os to complete.
2692 */
2693 if (dump_opt['c']) {
2694 for (int i = 0; i < max_ncpus; i++) {
2695 (void) zio_wait(spa->spa_async_zio_root[i]);
2696 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL,
2697 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2698 ZIO_FLAG_GODFATHER);
2699 }
2700 }
2701
2702 if (zcb.zcb_haderrors) {
2703 (void) printf("\nError counts:\n\n");
2704 (void) printf("\t%5s %s\n", "errno", "count");
2705 for (int e = 0; e < 256; e++) {
2706 if (zcb.zcb_errors[e] != 0) {
2707 (void) printf("\t%5d %llu\n",
2708 e, (u_longlong_t)zcb.zcb_errors[e]);
2709 }
2710 }
2711 }
2712
2713 /*
2714 * Report any leaked segments.
2715 */
2716 zdb_leak_fini(spa);
2717
2718 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2719
2720 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2721 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2722
2723 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2724 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2725
2726 if (total_found == total_alloc) {
2727 if (!dump_opt['L'])
2728 (void) printf("\n\tNo leaks (block sum matches space"
2729 " maps exactly)\n");
2730 } else {
2731 (void) printf("block traversal size %llu != alloc %llu "
2732 "(%s %lld)\n",
2733 (u_longlong_t)total_found,
2734 (u_longlong_t)total_alloc,
2735 (dump_opt['L']) ? "unreachable" : "leaked",
2736 (longlong_t)(total_alloc - total_found));
2737 leaks = B_TRUE;
2738 }
2739
2740 if (tzb->zb_count == 0)
2741 return (2);
2742
2743 (void) printf("\n");
2744 (void) printf("\tbp count: %10llu\n",
2745 (u_longlong_t)tzb->zb_count);
2746 (void) printf("\tganged count: %10llu\n",
2747 (longlong_t)tzb->zb_gangs);
2748 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2749 (u_longlong_t)tzb->zb_lsize,
2750 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2751 (void) printf("\tbp physical: %10llu avg:"
2752 " %6llu compression: %6.2f\n",
2753 (u_longlong_t)tzb->zb_psize,
2754 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2755 (double)tzb->zb_lsize / tzb->zb_psize);
2756 (void) printf("\tbp allocated: %10llu avg:"
2757 " %6llu compression: %6.2f\n",
2758 (u_longlong_t)tzb->zb_asize,
2759 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2760 (double)tzb->zb_lsize / tzb->zb_asize);
2761 (void) printf("\tbp deduped: %10llu ref>1:"
2762 " %6llu deduplication: %6.2f\n",
2763 (u_longlong_t)zcb.zcb_dedup_asize,
2764 (u_longlong_t)zcb.zcb_dedup_blocks,
2765 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2766 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2767 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2768
2769 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2770 if (zcb.zcb_embedded_blocks[i] == 0)
2771 continue;
2772 (void) printf("\n");
2773 (void) printf("\tadditional, non-pointer bps of type %u: "
2774 "%10llu\n",
2775 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2776
2777 if (dump_opt['b'] >= 3) {
2778 (void) printf("\t number of (compressed) bytes: "
2779 "number of bps\n");
2780 dump_histogram(zcb.zcb_embedded_histogram[i],
2781 sizeof (zcb.zcb_embedded_histogram[i]) /
2782 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2783 }
2784 }
2785
2786 if (tzb->zb_ditto_samevdev != 0) {
2787 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2788 (longlong_t)tzb->zb_ditto_samevdev);
2789 }
2790
2791 if (dump_opt['b'] >= 2) {
2792 int l, t, level;
2793 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2794 "\t avg\t comp\t%%Total\tType\n");
2795
2796 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2797 char csize[32], lsize[32], psize[32], asize[32];
2798 char avg[32], gang[32];
2799 char *typename;
2800
2801 if (t < DMU_OT_NUMTYPES)
2802 typename = dmu_ot[t].ot_name;
2803 else
2804 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2805
2806 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2807 (void) printf("%6s\t%5s\t%5s\t%5s"
2808 "\t%5s\t%5s\t%6s\t%s\n",
2809 "-",
2810 "-",
2811 "-",
2812 "-",
2813 "-",
2814 "-",
2815 "-",
2816 typename);
2817 continue;
2818 }
2819
2820 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2821 level = (l == -1 ? ZB_TOTAL : l);
2822 zb = &zcb.zcb_type[level][t];
2823
2824 if (zb->zb_asize == 0)
2825 continue;
2826
2827 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2828 continue;
2829
2830 if (level == 0 && zb->zb_asize ==
2831 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2832 continue;
2833
2834 zdb_nicenum(zb->zb_count, csize);
2835 zdb_nicenum(zb->zb_lsize, lsize);
2836 zdb_nicenum(zb->zb_psize, psize);
2837 zdb_nicenum(zb->zb_asize, asize);
2838 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2839 zdb_nicenum(zb->zb_gangs, gang);
2840
2841 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2842 "\t%5.2f\t%6.2f\t",
2843 csize, lsize, psize, asize, avg,
2844 (double)zb->zb_lsize / zb->zb_psize,
2845 100.0 * zb->zb_asize / tzb->zb_asize);
2846
2847 if (level == ZB_TOTAL)
2848 (void) printf("%s\n", typename);
2849 else
2850 (void) printf(" L%d %s\n",
2851 level, typename);
2852
2853 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
2854 (void) printf("\t number of ganged "
2855 "blocks: %s\n", gang);
2856 }
2857
2858 if (dump_opt['b'] >= 4) {
2859 (void) printf("psize "
2860 "(in 512-byte sectors): "
2861 "number of blocks\n");
2862 dump_histogram(zb->zb_psize_histogram,
2863 PSIZE_HISTO_SIZE, 0);
2864 }
2865 }
2866 }
2867 }
2868
2869 (void) printf("\n");
2870
2871 if (leaks)
2872 return (2);
2873
2874 if (zcb.zcb_haderrors)
2875 return (3);
2876
2877 return (0);
2878 }
2879
2880 typedef struct zdb_ddt_entry {
2881 ddt_key_t zdde_key;
2882 uint64_t zdde_ref_blocks;
2883 uint64_t zdde_ref_lsize;
2884 uint64_t zdde_ref_psize;
2885 uint64_t zdde_ref_dsize;
2886 avl_node_t zdde_node;
2887 } zdb_ddt_entry_t;
2888
2889 /* ARGSUSED */
2890 static int
2891 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2892 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2893 {
2894 avl_tree_t *t = arg;
2895 avl_index_t where;
2896 zdb_ddt_entry_t *zdde, zdde_search;
2897
2898 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
2899 return (0);
2900
2901 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2902 (void) printf("traversing objset %llu, %llu objects, "
2903 "%lu blocks so far\n",
2904 (u_longlong_t)zb->zb_objset,
2905 (u_longlong_t)BP_GET_FILL(bp),
2906 avl_numnodes(t));
2907 }
2908
2909 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2910 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2911 return (0);
2912
2913 ddt_key_fill(&zdde_search.zdde_key, bp);
2914
2915 zdde = avl_find(t, &zdde_search, &where);
2916
2917 if (zdde == NULL) {
2918 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2919 zdde->zdde_key = zdde_search.zdde_key;
2920 avl_insert(t, zdde, where);
2921 }
2922
2923 zdde->zdde_ref_blocks += 1;
2924 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2925 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2926 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2927
2928 return (0);
2929 }
2930
2931 static void
2932 dump_simulated_ddt(spa_t *spa)
2933 {
2934 avl_tree_t t;
2935 void *cookie = NULL;
2936 zdb_ddt_entry_t *zdde;
2937 ddt_histogram_t ddh_total = { 0 };
2938 ddt_stat_t dds_total = { 0 };
2939
2940 avl_create(&t, ddt_entry_compare,
2941 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2942
2943 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2944
2945 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2946 zdb_ddt_add_cb, &t);
2947
2948 spa_config_exit(spa, SCL_CONFIG, FTAG);
2949
2950 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2951 ddt_stat_t dds;
2952 uint64_t refcnt = zdde->zdde_ref_blocks;
2953 ASSERT(refcnt != 0);
2954
2955 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2956 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2957 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2958 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2959
2960 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2961 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2962 dds.dds_ref_psize = zdde->zdde_ref_psize;
2963 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2964
2965 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
2966 &dds, 0);
2967
2968 umem_free(zdde, sizeof (*zdde));
2969 }
2970
2971 avl_destroy(&t);
2972
2973 ddt_histogram_stat(&dds_total, &ddh_total);
2974
2975 (void) printf("Simulated DDT histogram:\n");
2976
2977 zpool_dump_ddt(&dds_total, &ddh_total);
2978
2979 dump_dedup_ratio(&dds_total);
2980 }
2981
2982 static void
2983 dump_zpool(spa_t *spa)
2984 {
2985 dsl_pool_t *dp = spa_get_dsl(spa);
2986 int rc = 0;
2987
2988 if (dump_opt['S']) {
2989 dump_simulated_ddt(spa);
2990 return;
2991 }
2992
2993 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2994 (void) printf("\nCached configuration:\n");
2995 dump_nvlist(spa->spa_config, 8);
2996 }
2997
2998 if (dump_opt['C'])
2999 dump_config(spa);
3000
3001 if (dump_opt['u'])
3002 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
3003
3004 if (dump_opt['D'])
3005 dump_all_ddts(spa);
3006
3007 if (dump_opt['d'] > 2 || dump_opt['m'])
3008 dump_metaslabs(spa);
3009 if (dump_opt['M'])
3010 dump_metaslab_groups(spa);
3011
3012 if (dump_opt['d'] || dump_opt['i']) {
3013 uint64_t refcount;
3014 dump_dir(dp->dp_meta_objset);
3015 if (dump_opt['d'] >= 3) {
3016 dump_full_bpobj(&spa->spa_deferred_bpobj,
3017 "Deferred frees", 0);
3018 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3019 dump_full_bpobj(
3020 &spa->spa_dsl_pool->dp_free_bpobj,
3021 "Pool snapshot frees", 0);
3022 }
3023
3024 if (spa_feature_is_active(spa,
3025 SPA_FEATURE_ASYNC_DESTROY)) {
3026 dump_bptree(spa->spa_meta_objset,
3027 spa->spa_dsl_pool->dp_bptree_obj,
3028 "Pool dataset frees");
3029 }
3030 dump_dtl(spa->spa_root_vdev, 0);
3031 }
3032 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3033 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3034
3035 (void) feature_get_refcount(spa,
3036 &spa_feature_table[SPA_FEATURE_LARGE_BLOCKS], &refcount);
3037 if (num_large_blocks != refcount) {
3038 (void) printf("large_blocks feature refcount mismatch: "
3039 "expected %lld != actual %lld\n",
3040 (longlong_t)num_large_blocks,
3041 (longlong_t)refcount);
3042 rc = 2;
3043 } else {
3044 (void) printf("Verified large_blocks feature refcount "
3045 "is correct (%llu)\n", (longlong_t)refcount);
3046 }
3047 }
3048 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
3049 rc = dump_block_stats(spa);
3050
3051 if (rc == 0)
3052 rc = verify_spacemap_refcounts(spa);
3053
3054 if (dump_opt['s'])
3055 show_pool_stats(spa);
3056
3057 if (dump_opt['h'])
3058 dump_history(spa);
3059
3060 if (rc != 0)
3061 exit(rc);
3062 }
3063
3064 #define ZDB_FLAG_CHECKSUM 0x0001
3065 #define ZDB_FLAG_DECOMPRESS 0x0002
3066 #define ZDB_FLAG_BSWAP 0x0004
3067 #define ZDB_FLAG_GBH 0x0008
3068 #define ZDB_FLAG_INDIRECT 0x0010
3069 #define ZDB_FLAG_PHYS 0x0020
3070 #define ZDB_FLAG_RAW 0x0040
3071 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3072
3073 int flagbits[256];
3074
3075 static void
3076 zdb_print_blkptr(blkptr_t *bp, int flags)
3077 {
3078 char blkbuf[BP_SPRINTF_LEN];
3079
3080 if (flags & ZDB_FLAG_BSWAP)
3081 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3082
3083 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3084 (void) printf("%s\n", blkbuf);
3085 }
3086
3087 static void
3088 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3089 {
3090 int i;
3091
3092 for (i = 0; i < nbps; i++)
3093 zdb_print_blkptr(&bp[i], flags);
3094 }
3095
3096 static void
3097 zdb_dump_gbh(void *buf, int flags)
3098 {
3099 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3100 }
3101
3102 static void
3103 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3104 {
3105 if (flags & ZDB_FLAG_BSWAP)
3106 byteswap_uint64_array(buf, size);
3107 (void) write(1, buf, size);
3108 }
3109
3110 static void
3111 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3112 {
3113 uint64_t *d = (uint64_t *)buf;
3114 int nwords = size / sizeof (uint64_t);
3115 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3116 int i, j;
3117 char *hdr, *c;
3118
3119
3120 if (do_bswap)
3121 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3122 else
3123 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3124
3125 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3126
3127 for (i = 0; i < nwords; i += 2) {
3128 (void) printf("%06llx: %016llx %016llx ",
3129 (u_longlong_t)(i * sizeof (uint64_t)),
3130 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3131 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3132
3133 c = (char *)&d[i];
3134 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3135 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3136 (void) printf("\n");
3137 }
3138 }
3139
3140 /*
3141 * There are two acceptable formats:
3142 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3143 * child[.child]* - For example: 0.1.1
3144 *
3145 * The second form can be used to specify arbitrary vdevs anywhere
3146 * in the heirarchy. For example, in a pool with a mirror of
3147 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3148 */
3149 static vdev_t *
3150 zdb_vdev_lookup(vdev_t *vdev, char *path)
3151 {
3152 char *s, *p, *q;
3153 int i;
3154
3155 if (vdev == NULL)
3156 return (NULL);
3157
3158 /* First, assume the x.x.x.x format */
3159 i = (int)strtoul(path, &s, 10);
3160 if (s == path || (s && *s != '.' && *s != '\0'))
3161 goto name;
3162 if (i < 0 || i >= vdev->vdev_children)
3163 return (NULL);
3164
3165 vdev = vdev->vdev_child[i];
3166 if (*s == '\0')
3167 return (vdev);
3168 return (zdb_vdev_lookup(vdev, s+1));
3169
3170 name:
3171 for (i = 0; i < vdev->vdev_children; i++) {
3172 vdev_t *vc = vdev->vdev_child[i];
3173
3174 if (vc->vdev_path == NULL) {
3175 vc = zdb_vdev_lookup(vc, path);
3176 if (vc == NULL)
3177 continue;
3178 else
3179 return (vc);
3180 }
3181
3182 p = strrchr(vc->vdev_path, '/');
3183 p = p ? p + 1 : vc->vdev_path;
3184 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3185
3186 if (strcmp(vc->vdev_path, path) == 0)
3187 return (vc);
3188 if (strcmp(p, path) == 0)
3189 return (vc);
3190 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3191 return (vc);
3192 }
3193
3194 return (NULL);
3195 }
3196
3197 /*
3198 * Read a block from a pool and print it out. The syntax of the
3199 * block descriptor is:
3200 *
3201 * pool:vdev_specifier:offset:size[:flags]
3202 *
3203 * pool - The name of the pool you wish to read from
3204 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3205 * offset - offset, in hex, in bytes
3206 * size - Amount of data to read, in hex, in bytes
3207 * flags - A string of characters specifying options
3208 * b: Decode a blkptr at given offset within block
3209 * *c: Calculate and display checksums
3210 * d: Decompress data before dumping
3211 * e: Byteswap data before dumping
3212 * g: Display data as a gang block header
3213 * i: Display as an indirect block
3214 * p: Do I/O to physical offset
3215 * r: Dump raw data to stdout
3216 *
3217 * * = not yet implemented
3218 */
3219 static void
3220 zdb_read_block(char *thing, spa_t *spa)
3221 {
3222 blkptr_t blk, *bp = &blk;
3223 dva_t *dva = bp->blk_dva;
3224 int flags = 0;
3225 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3226 zio_t *zio;
3227 vdev_t *vd;
3228 void *pbuf, *lbuf, *buf;
3229 char *s, *p, *dup, *vdev, *flagstr;
3230 int i, error;
3231
3232 dup = strdup(thing);
3233 s = strtok(dup, ":");
3234 vdev = s ? s : "";
3235 s = strtok(NULL, ":");
3236 offset = strtoull(s ? s : "", NULL, 16);
3237 s = strtok(NULL, ":");
3238 size = strtoull(s ? s : "", NULL, 16);
3239 s = strtok(NULL, ":");
3240 flagstr = s ? s : "";
3241
3242 s = NULL;
3243 if (size == 0)
3244 s = "size must not be zero";
3245 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3246 s = "size must be a multiple of sector size";
3247 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3248 s = "offset must be a multiple of sector size";
3249 if (s) {
3250 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3251 free(dup);
3252 return;
3253 }
3254
3255 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3256 for (i = 0; flagstr[i]; i++) {
3257 int bit = flagbits[(uchar_t)flagstr[i]];
3258
3259 if (bit == 0) {
3260 (void) printf("***Invalid flag: %c\n",
3261 flagstr[i]);
3262 continue;
3263 }
3264 flags |= bit;
3265
3266 /* If it's not something with an argument, keep going */
3267 if ((bit & (ZDB_FLAG_CHECKSUM |
3268 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3269 continue;
3270
3271 p = &flagstr[i + 1];
3272 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3273 blkptr_offset = strtoull(p, &p, 16);
3274 if (*p != ':' && *p != '\0') {
3275 (void) printf("***Invalid flag arg: '%s'\n", s);
3276 free(dup);
3277 return;
3278 }
3279 }
3280 }
3281
3282 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3283 if (vd == NULL) {
3284 (void) printf("***Invalid vdev: %s\n", vdev);
3285 free(dup);
3286 return;
3287 } else {
3288 if (vd->vdev_path)
3289 (void) fprintf(stderr, "Found vdev: %s\n",
3290 vd->vdev_path);
3291 else
3292 (void) fprintf(stderr, "Found vdev type: %s\n",
3293 vd->vdev_ops->vdev_op_type);
3294 }
3295
3296 psize = size;
3297 lsize = size;
3298
3299 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3300 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3301
3302 BP_ZERO(bp);
3303
3304 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3305 DVA_SET_OFFSET(&dva[0], offset);
3306 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3307 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3308
3309 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3310
3311 BP_SET_LSIZE(bp, lsize);
3312 BP_SET_PSIZE(bp, psize);
3313 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3314 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3315 BP_SET_TYPE(bp, DMU_OT_NONE);
3316 BP_SET_LEVEL(bp, 0);
3317 BP_SET_DEDUP(bp, 0);
3318 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3319
3320 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3321 zio = zio_root(spa, NULL, NULL, 0);
3322
3323 if (vd == vd->vdev_top) {
3324 /*
3325 * Treat this as a normal block read.
3326 */
3327 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3328 ZIO_PRIORITY_SYNC_READ,
3329 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3330 } else {
3331 /*
3332 * Treat this as a vdev child I/O.
3333 */
3334 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3335 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3336 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3337 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3338 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3339 }
3340
3341 error = zio_wait(zio);
3342 spa_config_exit(spa, SCL_STATE, FTAG);
3343
3344 if (error) {
3345 (void) printf("Read of %s failed, error: %d\n", thing, error);
3346 goto out;
3347 }
3348
3349 if (flags & ZDB_FLAG_DECOMPRESS) {
3350 /*
3351 * We don't know how the data was compressed, so just try
3352 * every decompress function at every inflated blocksize.
3353 */
3354 enum zio_compress c;
3355 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3356 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3357
3358 bcopy(pbuf, pbuf2, psize);
3359
3360 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3361 SPA_MAXBLOCKSIZE - psize) == 0);
3362
3363 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3364 SPA_MAXBLOCKSIZE - psize) == 0);
3365
3366 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3367 lsize -= SPA_MINBLOCKSIZE) {
3368 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3369 if (zio_decompress_data(c, pbuf, lbuf,
3370 psize, lsize) == 0 &&
3371 zio_decompress_data(c, pbuf2, lbuf2,
3372 psize, lsize) == 0 &&
3373 bcmp(lbuf, lbuf2, lsize) == 0)
3374 break;
3375 }
3376 if (c != ZIO_COMPRESS_FUNCTIONS)
3377 break;
3378 lsize -= SPA_MINBLOCKSIZE;
3379 }
3380
3381 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3382 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3383
3384 if (lsize <= psize) {
3385 (void) printf("Decompress of %s failed\n", thing);
3386 goto out;
3387 }
3388 buf = lbuf;
3389 size = lsize;
3390 } else {
3391 buf = pbuf;
3392 size = psize;
3393 }
3394
3395 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3396 zdb_print_blkptr((blkptr_t *)(void *)
3397 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3398 else if (flags & ZDB_FLAG_RAW)
3399 zdb_dump_block_raw(buf, size, flags);
3400 else if (flags & ZDB_FLAG_INDIRECT)
3401 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3402 flags);
3403 else if (flags & ZDB_FLAG_GBH)
3404 zdb_dump_gbh(buf, flags);
3405 else
3406 zdb_dump_block(thing, buf, size, flags);
3407
3408 out:
3409 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3410 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3411 free(dup);
3412 }
3413
3414 static boolean_t
3415 pool_match(nvlist_t *cfg, char *tgt)
3416 {
3417 uint64_t v, guid = strtoull(tgt, NULL, 0);
3418 char *s;
3419
3420 if (guid != 0) {
3421 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3422 return (v == guid);
3423 } else {
3424 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3425 return (strcmp(s, tgt) == 0);
3426 }
3427 return (B_FALSE);
3428 }
3429
3430 static char *
3431 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3432 {
3433 nvlist_t *pools;
3434 nvlist_t *match = NULL;
3435 char *name = NULL;
3436 char *sepp = NULL;
3437 char sep;
3438 int count = 0;
3439 importargs_t args = { 0 };
3440
3441 args.paths = dirc;
3442 args.path = dirv;
3443 args.can_be_active = B_TRUE;
3444
3445 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3446 sep = *sepp;
3447 *sepp = '\0';
3448 }
3449
3450 pools = zpool_search_import(g_zfs, &args);
3451
3452 if (pools != NULL) {
3453 nvpair_t *elem = NULL;
3454 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3455 verify(nvpair_value_nvlist(elem, configp) == 0);
3456 if (pool_match(*configp, *target)) {
3457 count++;
3458 if (match != NULL) {
3459 /* print previously found config */
3460 if (name != NULL) {
3461 (void) printf("%s\n", name);
3462 dump_nvlist(match, 8);
3463 name = NULL;
3464 }
3465 (void) printf("%s\n",
3466 nvpair_name(elem));
3467 dump_nvlist(*configp, 8);
3468 } else {
3469 match = *configp;
3470 name = nvpair_name(elem);
3471 }
3472 }
3473 }
3474 }
3475 if (count > 1)
3476 (void) fatal("\tMatched %d pools - use pool GUID "
3477 "instead of pool name or \n"
3478 "\tpool name part of a dataset name to select pool", count);
3479
3480 if (sepp)
3481 *sepp = sep;
3482 /*
3483 * If pool GUID was specified for pool id, replace it with pool name
3484 */
3485 if (name && (strstr(*target, name) != *target)) {
3486 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3487
3488 *target = umem_alloc(sz, UMEM_NOFAIL);
3489 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3490 }
3491
3492 *configp = name ? match : NULL;
3493
3494 return (name);
3495 }
3496
3497 int
3498 main(int argc, char **argv)
3499 {
3500 int i, c;
3501 struct rlimit rl = { 1024, 1024 };
3502 spa_t *spa = NULL;
3503 objset_t *os = NULL;
3504 int dump_all = 1;
3505 int verbose = 0;
3506 int error = 0;
3507 char **searchdirs = NULL;
3508 int nsearch = 0;
3509 char *target;
3510 nvlist_t *policy = NULL;
3511 uint64_t max_txg = UINT64_MAX;
3512 int rewind = ZPOOL_NEVER_REWIND;
3513
3514 (void) setrlimit(RLIMIT_NOFILE, &rl);
3515 (void) enable_extended_FILE_stdio(-1, -1);
3516
3517 dprintf_setup(&argc, argv);
3518
3519 while ((c = getopt(argc, argv,
3520 "bcdhilmMI:suCDRSAFLXx:evp:t:U:P")) != -1) {
3521 switch (c) {
3522 case 'b':
3523 case 'c':
3524 case 'd':
3525 case 'h':
3526 case 'i':
3527 case 'l':
3528 case 'm':
3529 case 's':
3530 case 'u':
3531 case 'C':
3532 case 'D':
3533 case 'M':
3534 case 'R':
3535 case 'S':
3536 dump_opt[c]++;
3537 dump_all = 0;
3538 break;
3539 case 'A':
3540 case 'F':
3541 case 'L':
3542 case 'X':
3543 case 'e':
3544 case 'P':
3545 dump_opt[c]++;
3546 break;
3547 case 'I':
3548 max_inflight = strtoull(optarg, NULL, 0);
3549 if (max_inflight == 0) {
3550 (void) fprintf(stderr, "maximum number "
3551 "of inflight I/Os must be greater "
3552 "than 0\n");
3553 usage();
3554 }
3555 break;
3556 case 'p':
3557 if (searchdirs == NULL) {
3558 searchdirs = umem_alloc(sizeof (char *),
3559 UMEM_NOFAIL);
3560 } else {
3561 char **tmp = umem_alloc((nsearch + 1) *
3562 sizeof (char *), UMEM_NOFAIL);
3563 bcopy(searchdirs, tmp, nsearch *
3564 sizeof (char *));
3565 umem_free(searchdirs,
3566 nsearch * sizeof (char *));
3567 searchdirs = tmp;
3568 }
3569 searchdirs[nsearch++] = optarg;
3570 break;
3571 case 't':
3572 max_txg = strtoull(optarg, NULL, 0);
3573 if (max_txg < TXG_INITIAL) {
3574 (void) fprintf(stderr, "incorrect txg "
3575 "specified: %s\n", optarg);
3576 usage();
3577 }
3578 break;
3579 case 'U':
3580 spa_config_path = optarg;
3581 break;
3582 case 'v':
3583 verbose++;
3584 break;
3585 case 'x':
3586 vn_dumpdir = optarg;
3587 break;
3588 default:
3589 usage();
3590 break;
3591 }
3592 }
3593
3594 if (!dump_opt['e'] && searchdirs != NULL) {
3595 (void) fprintf(stderr, "-p option requires use of -e\n");
3596 usage();
3597 }
3598
3599 /*
3600 * ZDB does not typically re-read blocks; therefore limit the ARC
3601 * to 256 MB, which can be used entirely for metadata.
3602 */
3603 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
3604
3605 /*
3606 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
3607 * "zdb -b" uses traversal prefetch which uses async reads.
3608 * For good performance, let several of them be active at once.
3609 */
3610 zfs_vdev_async_read_max_active = 10;
3611
3612 kernel_init(FREAD);
3613 g_zfs = libzfs_init();
3614 ASSERT(g_zfs != NULL);
3615
3616 if (dump_all)
3617 verbose = MAX(verbose, 1);
3618
3619 for (c = 0; c < 256; c++) {
3620 if (dump_all && !strchr("elAFLRSXP", c))
3621 dump_opt[c] = 1;
3622 if (dump_opt[c])
3623 dump_opt[c] += verbose;
3624 }
3625
3626 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3627 zfs_recover = (dump_opt['A'] > 1);
3628
3629 argc -= optind;
3630 argv += optind;
3631
3632 if (argc < 2 && dump_opt['R'])
3633 usage();
3634 if (argc < 1) {
3635 if (!dump_opt['e'] && dump_opt['C']) {
3636 dump_cachefile(spa_config_path);
3637 return (0);
3638 }
3639 usage();
3640 }
3641
3642 if (dump_opt['l']) {
3643 dump_label(argv[0]);
3644 return (0);
3645 }
3646
3647 if (dump_opt['X'] || dump_opt['F'])
3648 rewind = ZPOOL_DO_REWIND |
3649 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3650
3651 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3652 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3653 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3654 fatal("internal error: %s", strerror(ENOMEM));
3655
3656 error = 0;
3657 target = argv[0];
3658
3659 if (dump_opt['e']) {
3660 nvlist_t *cfg = NULL;
3661 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3662
3663 error = ENOENT;
3664 if (name) {
3665 if (dump_opt['C'] > 1) {
3666 (void) printf("\nConfiguration for import:\n");
3667 dump_nvlist(cfg, 8);
3668 }
3669 if (nvlist_add_nvlist(cfg,
3670 ZPOOL_REWIND_POLICY, policy) != 0) {
3671 fatal("can't open '%s': %s",
3672 target, strerror(ENOMEM));
3673 }
3674 if ((error = spa_import(name, cfg, NULL,
3675 ZFS_IMPORT_MISSING_LOG)) != 0) {
3676 error = spa_import(name, cfg, NULL,
3677 ZFS_IMPORT_VERBATIM);
3678 }
3679 }
3680 }
3681
3682 if (error == 0) {
3683 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3684 error = spa_open_rewind(target, &spa, FTAG, policy,
3685 NULL);
3686 if (error) {
3687 /*
3688 * If we're missing the log device then
3689 * try opening the pool after clearing the
3690 * log state.
3691 */
3692 mutex_enter(&spa_namespace_lock);
3693 if ((spa = spa_lookup(target)) != NULL &&
3694 spa->spa_log_state == SPA_LOG_MISSING) {
3695 spa->spa_log_state = SPA_LOG_CLEAR;
3696 error = 0;
3697 }
3698 mutex_exit(&spa_namespace_lock);
3699
3700 if (!error) {
3701 error = spa_open_rewind(target, &spa,
3702 FTAG, policy, NULL);
3703 }
3704 }
3705 } else {
3706 error = dmu_objset_own(target, DMU_OST_ANY,
3707 B_TRUE, FTAG, &os);
3708 }
3709 }
3710 nvlist_free(policy);
3711
3712 if (error)
3713 fatal("can't open '%s': %s", target, strerror(error));
3714
3715 argv++;
3716 argc--;
3717 if (!dump_opt['R']) {
3718 if (argc > 0) {
3719 zopt_objects = argc;
3720 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3721 for (i = 0; i < zopt_objects; i++) {
3722 errno = 0;
3723 zopt_object[i] = strtoull(argv[i], NULL, 0);
3724 if (zopt_object[i] == 0 && errno != 0)
3725 fatal("bad number %s: %s",
3726 argv[i], strerror(errno));
3727 }
3728 }
3729 if (os != NULL) {
3730 dump_dir(os);
3731 } else if (zopt_objects > 0 && !dump_opt['m']) {
3732 dump_dir(spa->spa_meta_objset);
3733 } else {
3734 dump_zpool(spa);
3735 }
3736 } else {
3737 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3738 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3739 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3740 flagbits['e'] = ZDB_FLAG_BSWAP;
3741 flagbits['g'] = ZDB_FLAG_GBH;
3742 flagbits['i'] = ZDB_FLAG_INDIRECT;
3743 flagbits['p'] = ZDB_FLAG_PHYS;
3744 flagbits['r'] = ZDB_FLAG_RAW;
3745
3746 for (i = 0; i < argc; i++)
3747 zdb_read_block(argv[i], spa);
3748 }
3749
3750 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3751
3752 fuid_table_destroy();
3753 sa_loaded = B_FALSE;
3754
3755 libzfs_fini(g_zfs);
3756 kernel_fini();
3757
3758 return (0);
3759 }
Community developed and maintained version of the OS/Net consolidation