]> git.proxmox.com Git - mirror_zfs.git/blob - cmd/zdb/zdb.c
projects / mirror_zfs.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Illumos 3654,3656
[mirror_zfs.git] / cmd / zdb / zdb.c
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 #include <libzfs.h>
64
65 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
66 zio_compress_table[(idx)].ci_name : "UNKNOWN")
67 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
68 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
69 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \
70 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \
71 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN")
72 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
73 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \
74 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES))
75
76 #ifndef lint
77 extern int zfs_recover;
78 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
79 #else
80 int zfs_recover;
81 uint64_t zfs_arc_max, zfs_arc_meta_limit;
82 #endif
83
84 const char cmdname[] = "zdb";
85 uint8_t dump_opt[256];
86
87 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
88
89 extern void dump_intent_log(zilog_t *);
90 uint64_t *zopt_object = NULL;
91 int zopt_objects = 0;
92 libzfs_handle_t *g_zfs;
93 uint64_t max_inflight = 1000;
94
95 /*
96 * These libumem hooks provide a reasonable set of defaults for the allocator's
97 * debugging facilities.
98 */
99 const char *
100 _umem_debug_init(void)
101 {
102 return ("default,verbose"); /* $UMEM_DEBUG setting */
103 }
104
105 const char *
106 _umem_logging_init(void)
107 {
108 return ("fail,contents"); /* $UMEM_LOGGING setting */
109 }
110
111 static void
112 usage(void)
113 {
114 (void) fprintf(stderr,
115 "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] "
116 "[-U config] [-I inflight I/Os] poolname [object...]\n"
117 " %s [-divPA] [-e -p path...] [-U config] dataset "
118 "[object...]\n"
119 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] "
120 "poolname [vdev [metaslab...]]\n"
121 " %s -R [-A] [-e [-p path...]] poolname "
122 "vdev:offset:size[:flags]\n"
123 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n"
124 " %s -l [-uA] device\n"
125 " %s -C [-A] [-U config]\n\n",
126 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname);
127
128 (void) fprintf(stderr, " Dataset name must include at least one "
129 "separator character '/' or '@'\n");
130 (void) fprintf(stderr, " If dataset name is specified, only that "
131 "dataset is dumped\n");
132 (void) fprintf(stderr, " If object numbers are specified, only "
133 "those objects are dumped\n\n");
134 (void) fprintf(stderr, " Options to control amount of output:\n");
135 (void) fprintf(stderr, " -u uberblock\n");
136 (void) fprintf(stderr, " -d dataset(s)\n");
137 (void) fprintf(stderr, " -i intent logs\n");
138 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
139 (void) fprintf(stderr, " -h pool history\n");
140 (void) fprintf(stderr, " -b block statistics\n");
141 (void) fprintf(stderr, " -m metaslabs\n");
142 (void) fprintf(stderr, " -M metaslab groups\n");
143 (void) fprintf(stderr, " -c checksum all metadata (twice for "
144 "all data) blocks\n");
145 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
146 (void) fprintf(stderr, " -D dedup statistics\n");
147 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
148 (void) fprintf(stderr, " -v verbose (applies to all others)\n");
149 (void) fprintf(stderr, " -l dump label contents\n");
150 (void) fprintf(stderr, " -L disable leak tracking (do not "
151 "load spacemaps)\n");
152 (void) fprintf(stderr, " -R read and display block from a "
153 "device\n\n");
154 (void) fprintf(stderr, " Below options are intended for use "
155 "with other options (except -l):\n");
156 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
157 "panic recovery (-AA) or both (-AAA)\n");
158 (void) fprintf(stderr, " -F attempt automatic rewind within "
159 "safe range of transaction groups\n");
160 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
161 "cachefile\n");
162 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
163 "work with dataset)\n");
164 (void) fprintf(stderr, " -e pool is exported/destroyed/"
165 "has altroot/not in a cachefile\n");
166 (void) fprintf(stderr, " -p <path> -- use one or more with "
167 "-e to specify path to vdev dir\n");
168 (void) fprintf(stderr, " -P print numbers in parseable form\n");
169 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
170 "searching for uberblocks\n");
171 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
172 "specify the maximum number of checksumming I/Os "
173 "[default is 200]\n");
174 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
175 "to make only that option verbose\n");
176 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
177 exit(1);
178 }
179
180 /*
181 * Called for usage errors that are discovered after a call to spa_open(),
182 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
183 */
184
185 static void
186 fatal(const char *fmt, ...)
187 {
188 va_list ap;
189
190 va_start(ap, fmt);
191 (void) fprintf(stderr, "%s: ", cmdname);
192 (void) vfprintf(stderr, fmt, ap);
193 va_end(ap);
194 (void) fprintf(stderr, "\n");
195
196 exit(1);
197 }
198
199 /* ARGSUSED */
200 static void
201 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
202 {
203 nvlist_t *nv;
204 size_t nvsize = *(uint64_t *)data;
205 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
206
207 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
208
209 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
210
211 umem_free(packed, nvsize);
212
213 dump_nvlist(nv, 8);
214
215 nvlist_free(nv);
216 }
217
218 /* ARGSUSED */
219 static void
220 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
221 {
222 spa_history_phys_t *shp = data;
223
224 if (shp == NULL)
225 return;
226
227 (void) printf("\t\tpool_create_len = %llu\n",
228 (u_longlong_t)shp->sh_pool_create_len);
229 (void) printf("\t\tphys_max_off = %llu\n",
230 (u_longlong_t)shp->sh_phys_max_off);
231 (void) printf("\t\tbof = %llu\n",
232 (u_longlong_t)shp->sh_bof);
233 (void) printf("\t\teof = %llu\n",
234 (u_longlong_t)shp->sh_eof);
235 (void) printf("\t\trecords_lost = %llu\n",
236 (u_longlong_t)shp->sh_records_lost);
237 }
238
239 static void
240 zdb_nicenum(uint64_t num, char *buf)
241 {
242 if (dump_opt['P'])
243 (void) sprintf(buf, "%llu", (longlong_t)num);
244 else
245 nicenum(num, buf);
246 }
247
248 const char histo_stars[] = "****************************************";
249 const int histo_width = sizeof (histo_stars) - 1;
250
251 static void
252 dump_histogram(const uint64_t *histo, int size, int offset)
253 {
254 int i;
255 int minidx = size - 1;
256 int maxidx = 0;
257 uint64_t max = 0;
258
259 for (i = 0; i < size; i++) {
260 if (histo[i] > max)
261 max = histo[i];
262 if (histo[i] > 0 && i > maxidx)
263 maxidx = i;
264 if (histo[i] > 0 && i < minidx)
265 minidx = i;
266 }
267
268 if (max < histo_width)
269 max = histo_width;
270
271 for (i = minidx; i <= maxidx; i++) {
272 (void) printf("\t\t\t%3u: %6llu %s\n",
273 i + offset, (u_longlong_t)histo[i],
274 &histo_stars[(max - histo[i]) * histo_width / max]);
275 }
276 }
277
278 static void
279 dump_zap_stats(objset_t *os, uint64_t object)
280 {
281 int error;
282 zap_stats_t zs;
283
284 error = zap_get_stats(os, object, &zs);
285 if (error)
286 return;
287
288 if (zs.zs_ptrtbl_len == 0) {
289 ASSERT(zs.zs_num_blocks == 1);
290 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
291 (u_longlong_t)zs.zs_blocksize,
292 (u_longlong_t)zs.zs_num_entries);
293 return;
294 }
295
296 (void) printf("\tFat ZAP stats:\n");
297
298 (void) printf("\t\tPointer table:\n");
299 (void) printf("\t\t\t%llu elements\n",
300 (u_longlong_t)zs.zs_ptrtbl_len);
301 (void) printf("\t\t\tzt_blk: %llu\n",
302 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
303 (void) printf("\t\t\tzt_numblks: %llu\n",
304 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
305 (void) printf("\t\t\tzt_shift: %llu\n",
306 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
307 (void) printf("\t\t\tzt_blks_copied: %llu\n",
308 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
309 (void) printf("\t\t\tzt_nextblk: %llu\n",
310 (u_longlong_t)zs.zs_ptrtbl_nextblk);
311
312 (void) printf("\t\tZAP entries: %llu\n",
313 (u_longlong_t)zs.zs_num_entries);
314 (void) printf("\t\tLeaf blocks: %llu\n",
315 (u_longlong_t)zs.zs_num_leafs);
316 (void) printf("\t\tTotal blocks: %llu\n",
317 (u_longlong_t)zs.zs_num_blocks);
318 (void) printf("\t\tzap_block_type: 0x%llx\n",
319 (u_longlong_t)zs.zs_block_type);
320 (void) printf("\t\tzap_magic: 0x%llx\n",
321 (u_longlong_t)zs.zs_magic);
322 (void) printf("\t\tzap_salt: 0x%llx\n",
323 (u_longlong_t)zs.zs_salt);
324
325 (void) printf("\t\tLeafs with 2^n pointers:\n");
326 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
327
328 (void) printf("\t\tBlocks with n*5 entries:\n");
329 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
330
331 (void) printf("\t\tBlocks n/10 full:\n");
332 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
333
334 (void) printf("\t\tEntries with n chunks:\n");
335 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
336
337 (void) printf("\t\tBuckets with n entries:\n");
338 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
339 }
340
341 /*ARGSUSED*/
342 static void
343 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
344 {
345 }
346
347 /*ARGSUSED*/
348 static void
349 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
350 {
351 (void) printf("\tUNKNOWN OBJECT TYPE\n");
352 }
353
354 /*ARGSUSED*/
355 void
356 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
357 {
358 }
359
360 /*ARGSUSED*/
361 static void
362 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
363 {
364 }
365
366 /*ARGSUSED*/
367 static void
368 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
369 {
370 zap_cursor_t zc;
371 zap_attribute_t attr;
372 void *prop;
373 int i;
374
375 dump_zap_stats(os, object);
376 (void) printf("\n");
377
378 for (zap_cursor_init(&zc, os, object);
379 zap_cursor_retrieve(&zc, &attr) == 0;
380 zap_cursor_advance(&zc)) {
381 (void) printf("\t\t%s = ", attr.za_name);
382 if (attr.za_num_integers == 0) {
383 (void) printf("\n");
384 continue;
385 }
386 prop = umem_zalloc(attr.za_num_integers *
387 attr.za_integer_length, UMEM_NOFAIL);
388 (void) zap_lookup(os, object, attr.za_name,
389 attr.za_integer_length, attr.za_num_integers, prop);
390 if (attr.za_integer_length == 1) {
391 (void) printf("%s", (char *)prop);
392 } else {
393 for (i = 0; i < attr.za_num_integers; i++) {
394 switch (attr.za_integer_length) {
395 case 2:
396 (void) printf("%u ",
397 ((uint16_t *)prop)[i]);
398 break;
399 case 4:
400 (void) printf("%u ",
401 ((uint32_t *)prop)[i]);
402 break;
403 case 8:
404 (void) printf("%lld ",
405 (u_longlong_t)((int64_t *)prop)[i]);
406 break;
407 }
408 }
409 }
410 (void) printf("\n");
411 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
412 }
413 zap_cursor_fini(&zc);
414 }
415
416 /*ARGSUSED*/
417 static void
418 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
419 {
420 dump_zap_stats(os, object);
421 /* contents are printed elsewhere, properly decoded */
422 }
423
424 /*ARGSUSED*/
425 static void
426 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
427 {
428 zap_cursor_t zc;
429 zap_attribute_t attr;
430
431 dump_zap_stats(os, object);
432 (void) printf("\n");
433
434 for (zap_cursor_init(&zc, os, object);
435 zap_cursor_retrieve(&zc, &attr) == 0;
436 zap_cursor_advance(&zc)) {
437 (void) printf("\t\t%s = ", attr.za_name);
438 if (attr.za_num_integers == 0) {
439 (void) printf("\n");
440 continue;
441 }
442 (void) printf(" %llx : [%d:%d:%d]\n",
443 (u_longlong_t)attr.za_first_integer,
444 (int)ATTR_LENGTH(attr.za_first_integer),
445 (int)ATTR_BSWAP(attr.za_first_integer),
446 (int)ATTR_NUM(attr.za_first_integer));
447 }
448 zap_cursor_fini(&zc);
449 }
450
451 /*ARGSUSED*/
452 static void
453 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
454 {
455 zap_cursor_t zc;
456 zap_attribute_t attr;
457 uint16_t *layout_attrs;
458 int i;
459
460 dump_zap_stats(os, object);
461 (void) printf("\n");
462
463 for (zap_cursor_init(&zc, os, object);
464 zap_cursor_retrieve(&zc, &attr) == 0;
465 zap_cursor_advance(&zc)) {
466 (void) printf("\t\t%s = [", attr.za_name);
467 if (attr.za_num_integers == 0) {
468 (void) printf("\n");
469 continue;
470 }
471
472 VERIFY(attr.za_integer_length == 2);
473 layout_attrs = umem_zalloc(attr.za_num_integers *
474 attr.za_integer_length, UMEM_NOFAIL);
475
476 VERIFY(zap_lookup(os, object, attr.za_name,
477 attr.za_integer_length,
478 attr.za_num_integers, layout_attrs) == 0);
479
480 for (i = 0; i != attr.za_num_integers; i++)
481 (void) printf(" %d ", (int)layout_attrs[i]);
482 (void) printf("]\n");
483 umem_free(layout_attrs,
484 attr.za_num_integers * attr.za_integer_length);
485 }
486 zap_cursor_fini(&zc);
487 }
488
489 /*ARGSUSED*/
490 static void
491 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
492 {
493 zap_cursor_t zc;
494 zap_attribute_t attr;
495 const char *typenames[] = {
496 /* 0 */ "not specified",
497 /* 1 */ "FIFO",
498 /* 2 */ "Character Device",
499 /* 3 */ "3 (invalid)",
500 /* 4 */ "Directory",
501 /* 5 */ "5 (invalid)",
502 /* 6 */ "Block Device",
503 /* 7 */ "7 (invalid)",
504 /* 8 */ "Regular File",
505 /* 9 */ "9 (invalid)",
506 /* 10 */ "Symbolic Link",
507 /* 11 */ "11 (invalid)",
508 /* 12 */ "Socket",
509 /* 13 */ "Door",
510 /* 14 */ "Event Port",
511 /* 15 */ "15 (invalid)",
512 };
513
514 dump_zap_stats(os, object);
515 (void) printf("\n");
516
517 for (zap_cursor_init(&zc, os, object);
518 zap_cursor_retrieve(&zc, &attr) == 0;
519 zap_cursor_advance(&zc)) {
520 (void) printf("\t\t%s = %lld (type: %s)\n",
521 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
522 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
523 }
524 zap_cursor_fini(&zc);
525 }
526
527 int
528 get_dtl_refcount(vdev_t *vd)
529 {
530 int refcount = 0;
531 int c;
532
533 if (vd->vdev_ops->vdev_op_leaf) {
534 space_map_t *sm = vd->vdev_dtl_sm;
535
536 if (sm != NULL &&
537 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
538 return (1);
539 return (0);
540 }
541
542 for (c = 0; c < vd->vdev_children; c++)
543 refcount += get_dtl_refcount(vd->vdev_child[c]);
544 return (refcount);
545 }
546
547 int
548 get_metaslab_refcount(vdev_t *vd)
549 {
550 int refcount = 0;
551 int c, m;
552
553 if (vd->vdev_top == vd && !vd->vdev_removing) {
554 for (m = 0; m < vd->vdev_ms_count; m++) {
555 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
556
557 if (sm != NULL &&
558 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
559 refcount++;
560 }
561 }
562 for (c = 0; c < vd->vdev_children; c++)
563 refcount += get_metaslab_refcount(vd->vdev_child[c]);
564
565 return (refcount);
566 }
567
568 static int
569 verify_spacemap_refcounts(spa_t *spa)
570 {
571 uint64_t expected_refcount = 0;
572 uint64_t actual_refcount;
573
574 (void) feature_get_refcount(spa,
575 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
576 &expected_refcount);
577 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
578 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
579
580 if (expected_refcount != actual_refcount) {
581 (void) printf("space map refcount mismatch: expected %lld != "
582 "actual %lld\n",
583 (longlong_t)expected_refcount,
584 (longlong_t)actual_refcount);
585 return (2);
586 }
587 return (0);
588 }
589
590 static void
591 dump_spacemap(objset_t *os, space_map_t *sm)
592 {
593 uint64_t alloc, offset, entry;
594 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
595 "INVALID", "INVALID", "INVALID", "INVALID" };
596
597 if (sm == NULL)
598 return;
599
600 /*
601 * Print out the freelist entries in both encoded and decoded form.
602 */
603 alloc = 0;
604 for (offset = 0; offset < space_map_length(sm);
605 offset += sizeof (entry)) {
606 uint8_t mapshift = sm->sm_shift;
607
608 VERIFY0(dmu_read(os, space_map_object(sm), offset,
609 sizeof (entry), &entry, DMU_READ_PREFETCH));
610 if (SM_DEBUG_DECODE(entry)) {
611
612 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
613 (u_longlong_t)(offset / sizeof (entry)),
614 ddata[SM_DEBUG_ACTION_DECODE(entry)],
615 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
616 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
617 } else {
618 (void) printf("\t [%6llu] %c range:"
619 " %010llx-%010llx size: %06llx\n",
620 (u_longlong_t)(offset / sizeof (entry)),
621 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
622 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
623 mapshift) + sm->sm_start),
624 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
625 mapshift) + sm->sm_start +
626 (SM_RUN_DECODE(entry) << mapshift)),
627 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
628 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
629 alloc += SM_RUN_DECODE(entry) << mapshift;
630 else
631 alloc -= SM_RUN_DECODE(entry) << mapshift;
632 }
633 }
634 if (alloc != space_map_allocated(sm)) {
635 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
636 "with space map summary (%llu)\n",
637 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
638 }
639 }
640
641 static void
642 dump_metaslab_stats(metaslab_t *msp)
643 {
644 char maxbuf[32];
645 range_tree_t *rt = msp->ms_tree;
646 avl_tree_t *t = &msp->ms_size_tree;
647 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
648
649 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf);
650
651 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
652 "segments", avl_numnodes(t), "maxsize", maxbuf,
653 "freepct", free_pct);
654 (void) printf("\tIn-memory histogram:\n");
655 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
656 }
657
658 static void
659 dump_metaslab(metaslab_t *msp)
660 {
661 vdev_t *vd = msp->ms_group->mg_vd;
662 spa_t *spa = vd->vdev_spa;
663 space_map_t *sm = msp->ms_sm;
664 char freebuf[32];
665
666 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf);
667
668 (void) printf(
669 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
670 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
671 (u_longlong_t)space_map_object(sm), freebuf);
672
673 if (dump_opt['m'] > 2 && !dump_opt['L']) {
674 mutex_enter(&msp->ms_lock);
675 metaslab_load_wait(msp);
676 if (!msp->ms_loaded) {
677 VERIFY0(metaslab_load(msp));
678 range_tree_stat_verify(msp->ms_tree);
679 }
680 dump_metaslab_stats(msp);
681 metaslab_unload(msp);
682 mutex_exit(&msp->ms_lock);
683 }
684
685 if (dump_opt['m'] > 1 && sm != NULL &&
686 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
687 /*
688 * The space map histogram represents free space in chunks
689 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
690 */
691 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
692 (u_longlong_t)msp->ms_fragmentation);
693 dump_histogram(sm->sm_phys->smp_histogram,
694 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
695 }
696
697 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
698 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
699
700 mutex_enter(&msp->ms_lock);
701 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
702 mutex_exit(&msp->ms_lock);
703 }
704 }
705
706 static void
707 print_vdev_metaslab_header(vdev_t *vd)
708 {
709 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
710 (u_longlong_t)vd->vdev_id,
711 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
712 "offset", "spacemap", "free");
713 (void) printf("\t%15s %19s %15s %10s\n",
714 "---------------", "-------------------",
715 "---------------", "-------------");
716 }
717
718 static void
719 dump_metaslab_groups(spa_t *spa)
720 {
721 vdev_t *rvd = spa->spa_root_vdev;
722 metaslab_class_t *mc = spa_normal_class(spa);
723 uint64_t fragmentation;
724 int c;
725
726 metaslab_class_histogram_verify(mc);
727
728 for (c = 0; c < rvd->vdev_children; c++) {
729 vdev_t *tvd = rvd->vdev_child[c];
730 metaslab_group_t *mg = tvd->vdev_mg;
731
732 if (mg->mg_class != mc)
733 continue;
734
735 metaslab_group_histogram_verify(mg);
736 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
737
738 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
739 "fragmentation",
740 (u_longlong_t)tvd->vdev_id,
741 (u_longlong_t)tvd->vdev_ms_count);
742 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
743 (void) printf("%3s\n", "-");
744 } else {
745 (void) printf("%3llu%%\n",
746 (u_longlong_t)mg->mg_fragmentation);
747 }
748 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
749 }
750
751 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
752 fragmentation = metaslab_class_fragmentation(mc);
753 if (fragmentation == ZFS_FRAG_INVALID)
754 (void) printf("\t%3s\n", "-");
755 else
756 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
757 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
758 }
759
760 static void
761 dump_metaslabs(spa_t *spa)
762 {
763 vdev_t *vd, *rvd = spa->spa_root_vdev;
764 uint64_t m, c = 0, children = rvd->vdev_children;
765
766 (void) printf("\nMetaslabs:\n");
767
768 if (!dump_opt['d'] && zopt_objects > 0) {
769 c = zopt_object[0];
770
771 if (c >= children)
772 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
773
774 if (zopt_objects > 1) {
775 vd = rvd->vdev_child[c];
776 print_vdev_metaslab_header(vd);
777
778 for (m = 1; m < zopt_objects; m++) {
779 if (zopt_object[m] < vd->vdev_ms_count)
780 dump_metaslab(
781 vd->vdev_ms[zopt_object[m]]);
782 else
783 (void) fprintf(stderr, "bad metaslab "
784 "number %llu\n",
785 (u_longlong_t)zopt_object[m]);
786 }
787 (void) printf("\n");
788 return;
789 }
790 children = c + 1;
791 }
792 for (; c < children; c++) {
793 vd = rvd->vdev_child[c];
794 print_vdev_metaslab_header(vd);
795
796 for (m = 0; m < vd->vdev_ms_count; m++)
797 dump_metaslab(vd->vdev_ms[m]);
798 (void) printf("\n");
799 }
800 }
801
802 static void
803 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
804 {
805 const ddt_phys_t *ddp = dde->dde_phys;
806 const ddt_key_t *ddk = &dde->dde_key;
807 char *types[4] = { "ditto", "single", "double", "triple" };
808 char blkbuf[BP_SPRINTF_LEN];
809 blkptr_t blk;
810 int p;
811
812 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
813 if (ddp->ddp_phys_birth == 0)
814 continue;
815 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
816 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
817 (void) printf("index %llx refcnt %llu %s %s\n",
818 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
819 types[p], blkbuf);
820 }
821 }
822
823 static void
824 dump_dedup_ratio(const ddt_stat_t *dds)
825 {
826 double rL, rP, rD, D, dedup, compress, copies;
827
828 if (dds->dds_blocks == 0)
829 return;
830
831 rL = (double)dds->dds_ref_lsize;
832 rP = (double)dds->dds_ref_psize;
833 rD = (double)dds->dds_ref_dsize;
834 D = (double)dds->dds_dsize;
835
836 dedup = rD / D;
837 compress = rL / rP;
838 copies = rD / rP;
839
840 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
841 "dedup * compress / copies = %.2f\n\n",
842 dedup, compress, copies, dedup * compress / copies);
843 }
844
845 static void
846 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
847 {
848 char name[DDT_NAMELEN];
849 ddt_entry_t dde;
850 uint64_t walk = 0;
851 dmu_object_info_t doi;
852 uint64_t count, dspace, mspace;
853 int error;
854
855 error = ddt_object_info(ddt, type, class, &doi);
856
857 if (error == ENOENT)
858 return;
859 ASSERT(error == 0);
860
861 error = ddt_object_count(ddt, type, class, &count);
862 ASSERT(error == 0);
863 if (count == 0)
864 return;
865
866 dspace = doi.doi_physical_blocks_512 << 9;
867 mspace = doi.doi_fill_count * doi.doi_data_block_size;
868
869 ddt_object_name(ddt, type, class, name);
870
871 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
872 name,
873 (u_longlong_t)count,
874 (u_longlong_t)(dspace / count),
875 (u_longlong_t)(mspace / count));
876
877 if (dump_opt['D'] < 3)
878 return;
879
880 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
881
882 if (dump_opt['D'] < 4)
883 return;
884
885 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
886 return;
887
888 (void) printf("%s contents:\n\n", name);
889
890 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
891 dump_dde(ddt, &dde, walk);
892
893 ASSERT(error == ENOENT);
894
895 (void) printf("\n");
896 }
897
898 static void
899 dump_all_ddts(spa_t *spa)
900 {
901 ddt_histogram_t ddh_total;
902 ddt_stat_t dds_total;
903 enum zio_checksum c;
904 enum ddt_type type;
905 enum ddt_class class;
906
907 bzero(&ddh_total, sizeof (ddt_histogram_t));
908 bzero(&dds_total, sizeof (ddt_stat_t));
909
910 for (c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
911 ddt_t *ddt = spa->spa_ddt[c];
912 for (type = 0; type < DDT_TYPES; type++) {
913 for (class = 0; class < DDT_CLASSES;
914 class++) {
915 dump_ddt(ddt, type, class);
916 }
917 }
918 }
919
920 ddt_get_dedup_stats(spa, &dds_total);
921
922 if (dds_total.dds_blocks == 0) {
923 (void) printf("All DDTs are empty\n");
924 return;
925 }
926
927 (void) printf("\n");
928
929 if (dump_opt['D'] > 1) {
930 (void) printf("DDT histogram (aggregated over all DDTs):\n");
931 ddt_get_dedup_histogram(spa, &ddh_total);
932 zpool_dump_ddt(&dds_total, &ddh_total);
933 }
934
935 dump_dedup_ratio(&dds_total);
936 }
937
938 static void
939 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
940 {
941 char *prefix = arg;
942
943 (void) printf("%s [%llu,%llu) length %llu\n",
944 prefix,
945 (u_longlong_t)start,
946 (u_longlong_t)(start + size),
947 (u_longlong_t)(size));
948 }
949
950 static void
951 dump_dtl(vdev_t *vd, int indent)
952 {
953 spa_t *spa = vd->vdev_spa;
954 boolean_t required;
955 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" };
956 char prefix[256];
957 int c, t;
958
959 spa_vdev_state_enter(spa, SCL_NONE);
960 required = vdev_dtl_required(vd);
961 (void) spa_vdev_state_exit(spa, NULL, 0);
962
963 if (indent == 0)
964 (void) printf("\nDirty time logs:\n\n");
965
966 (void) printf("\t%*s%s [%s]\n", indent, "",
967 vd->vdev_path ? vd->vdev_path :
968 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
969 required ? "DTL-required" : "DTL-expendable");
970
971 for (t = 0; t < DTL_TYPES; t++) {
972 range_tree_t *rt = vd->vdev_dtl[t];
973 if (range_tree_space(rt) == 0)
974 continue;
975 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
976 indent + 2, "", name[t]);
977 mutex_enter(rt->rt_lock);
978 range_tree_walk(rt, dump_dtl_seg, prefix);
979 mutex_exit(rt->rt_lock);
980 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
981 dump_spacemap(spa->spa_meta_objset,
982 vd->vdev_dtl_sm);
983 }
984
985 for (c = 0; c < vd->vdev_children; c++)
986 dump_dtl(vd->vdev_child[c], indent + 4);
987 }
988
989 static void
990 dump_history(spa_t *spa)
991 {
992 nvlist_t **events = NULL;
993 char buf[SPA_MAXBLOCKSIZE];
994 uint64_t resid, len, off = 0;
995 uint_t num = 0;
996 int error;
997 time_t tsec;
998 struct tm t;
999 char tbuf[30];
1000 char internalstr[MAXPATHLEN];
1001 int i;
1002
1003 do {
1004 len = sizeof (buf);
1005
1006 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1007 (void) fprintf(stderr, "Unable to read history: "
1008 "error %d\n", error);
1009 return;
1010 }
1011
1012 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1013 break;
1014
1015 off -= resid;
1016 } while (len != 0);
1017
1018 (void) printf("\nHistory:\n");
1019 for (i = 0; i < num; i++) {
1020 uint64_t time, txg, ievent;
1021 char *cmd, *intstr;
1022 boolean_t printed = B_FALSE;
1023
1024 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1025 &time) != 0)
1026 goto next;
1027 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1028 &cmd) != 0) {
1029 if (nvlist_lookup_uint64(events[i],
1030 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1031 goto next;
1032 verify(nvlist_lookup_uint64(events[i],
1033 ZPOOL_HIST_TXG, &txg) == 0);
1034 verify(nvlist_lookup_string(events[i],
1035 ZPOOL_HIST_INT_STR, &intstr) == 0);
1036 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1037 goto next;
1038
1039 (void) snprintf(internalstr,
1040 sizeof (internalstr),
1041 "[internal %s txg:%lld] %s",
1042 zfs_history_event_names[ievent],
1043 (longlong_t)txg, intstr);
1044 cmd = internalstr;
1045 }
1046 tsec = time;
1047 (void) localtime_r(&tsec, &t);
1048 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1049 (void) printf("%s %s\n", tbuf, cmd);
1050 printed = B_TRUE;
1051
1052 next:
1053 if (dump_opt['h'] > 1) {
1054 if (!printed)
1055 (void) printf("unrecognized record:\n");
1056 dump_nvlist(events[i], 2);
1057 }
1058 }
1059 }
1060
1061 /*ARGSUSED*/
1062 static void
1063 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1064 {
1065 }
1066
1067 static uint64_t
1068 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1069 const zbookmark_phys_t *zb)
1070 {
1071 if (dnp == NULL) {
1072 ASSERT(zb->zb_level < 0);
1073 if (zb->zb_object == 0)
1074 return (zb->zb_blkid);
1075 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1076 }
1077
1078 ASSERT(zb->zb_level >= 0);
1079
1080 return ((zb->zb_blkid <<
1081 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1082 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1083 }
1084
1085 static void
1086 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1087 {
1088 const dva_t *dva = bp->blk_dva;
1089 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1090 int i;
1091
1092 if (dump_opt['b'] >= 6) {
1093 snprintf_blkptr(blkbuf, buflen, bp);
1094 return;
1095 }
1096
1097 if (BP_IS_EMBEDDED(bp)) {
1098 (void) sprintf(blkbuf,
1099 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1100 (int)BPE_GET_ETYPE(bp),
1101 (u_longlong_t)BPE_GET_LSIZE(bp),
1102 (u_longlong_t)BPE_GET_PSIZE(bp),
1103 (u_longlong_t)bp->blk_birth);
1104 return;
1105 }
1106
1107 blkbuf[0] = '\0';
1108
1109 for (i = 0; i < ndvas; i++)
1110 (void) snprintf(blkbuf + strlen(blkbuf),
1111 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1112 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1113 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1114 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1115
1116 if (BP_IS_HOLE(bp)) {
1117 (void) snprintf(blkbuf + strlen(blkbuf),
1118 buflen - strlen(blkbuf),
1119 "%llxL B=%llu",
1120 (u_longlong_t)BP_GET_LSIZE(bp),
1121 (u_longlong_t)bp->blk_birth);
1122 } else {
1123 (void) snprintf(blkbuf + strlen(blkbuf),
1124 buflen - strlen(blkbuf),
1125 "%llxL/%llxP F=%llu B=%llu/%llu",
1126 (u_longlong_t)BP_GET_LSIZE(bp),
1127 (u_longlong_t)BP_GET_PSIZE(bp),
1128 (u_longlong_t)BP_GET_FILL(bp),
1129 (u_longlong_t)bp->blk_birth,
1130 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1131 }
1132 }
1133
1134 static void
1135 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1136 const dnode_phys_t *dnp)
1137 {
1138 char blkbuf[BP_SPRINTF_LEN];
1139 int l;
1140
1141 if (!BP_IS_EMBEDDED(bp)) {
1142 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1143 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1144 }
1145
1146 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1147
1148 ASSERT(zb->zb_level >= 0);
1149
1150 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1151 if (l == zb->zb_level) {
1152 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1153 } else {
1154 (void) printf(" ");
1155 }
1156 }
1157
1158 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1159 (void) printf("%s\n", blkbuf);
1160 }
1161
1162 static int
1163 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1164 blkptr_t *bp, const zbookmark_phys_t *zb)
1165 {
1166 int err = 0;
1167
1168 if (bp->blk_birth == 0)
1169 return (0);
1170
1171 print_indirect(bp, zb, dnp);
1172
1173 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1174 uint32_t flags = ARC_WAIT;
1175 int i;
1176 blkptr_t *cbp;
1177 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1178 arc_buf_t *buf;
1179 uint64_t fill = 0;
1180
1181 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1182 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1183 if (err)
1184 return (err);
1185 ASSERT(buf->b_data);
1186
1187 /* recursively visit blocks below this */
1188 cbp = buf->b_data;
1189 for (i = 0; i < epb; i++, cbp++) {
1190 zbookmark_phys_t czb;
1191
1192 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1193 zb->zb_level - 1,
1194 zb->zb_blkid * epb + i);
1195 err = visit_indirect(spa, dnp, cbp, &czb);
1196 if (err)
1197 break;
1198 fill += BP_GET_FILL(cbp);
1199 }
1200 if (!err)
1201 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1202 (void) arc_buf_remove_ref(buf, &buf);
1203 }
1204
1205 return (err);
1206 }
1207
1208 /*ARGSUSED*/
1209 static void
1210 dump_indirect(dnode_t *dn)
1211 {
1212 dnode_phys_t *dnp = dn->dn_phys;
1213 int j;
1214 zbookmark_phys_t czb;
1215
1216 (void) printf("Indirect blocks:\n");
1217
1218 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1219 dn->dn_object, dnp->dn_nlevels - 1, 0);
1220 for (j = 0; j < dnp->dn_nblkptr; j++) {
1221 czb.zb_blkid = j;
1222 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1223 &dnp->dn_blkptr[j], &czb);
1224 }
1225
1226 (void) printf("\n");
1227 }
1228
1229 /*ARGSUSED*/
1230 static void
1231 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1232 {
1233 dsl_dir_phys_t *dd = data;
1234 time_t crtime;
1235 char nice[32];
1236
1237 if (dd == NULL)
1238 return;
1239
1240 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1241
1242 crtime = dd->dd_creation_time;
1243 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1244 (void) printf("\t\thead_dataset_obj = %llu\n",
1245 (u_longlong_t)dd->dd_head_dataset_obj);
1246 (void) printf("\t\tparent_dir_obj = %llu\n",
1247 (u_longlong_t)dd->dd_parent_obj);
1248 (void) printf("\t\torigin_obj = %llu\n",
1249 (u_longlong_t)dd->dd_origin_obj);
1250 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1251 (u_longlong_t)dd->dd_child_dir_zapobj);
1252 zdb_nicenum(dd->dd_used_bytes, nice);
1253 (void) printf("\t\tused_bytes = %s\n", nice);
1254 zdb_nicenum(dd->dd_compressed_bytes, nice);
1255 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1256 zdb_nicenum(dd->dd_uncompressed_bytes, nice);
1257 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1258 zdb_nicenum(dd->dd_quota, nice);
1259 (void) printf("\t\tquota = %s\n", nice);
1260 zdb_nicenum(dd->dd_reserved, nice);
1261 (void) printf("\t\treserved = %s\n", nice);
1262 (void) printf("\t\tprops_zapobj = %llu\n",
1263 (u_longlong_t)dd->dd_props_zapobj);
1264 (void) printf("\t\tdeleg_zapobj = %llu\n",
1265 (u_longlong_t)dd->dd_deleg_zapobj);
1266 (void) printf("\t\tflags = %llx\n",
1267 (u_longlong_t)dd->dd_flags);
1268
1269 #define DO(which) \
1270 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \
1271 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1272 DO(HEAD);
1273 DO(SNAP);
1274 DO(CHILD);
1275 DO(CHILD_RSRV);
1276 DO(REFRSRV);
1277 #undef DO
1278 }
1279
1280 /*ARGSUSED*/
1281 static void
1282 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1283 {
1284 dsl_dataset_phys_t *ds = data;
1285 time_t crtime;
1286 char used[32], compressed[32], uncompressed[32], unique[32];
1287 char blkbuf[BP_SPRINTF_LEN];
1288
1289 if (ds == NULL)
1290 return;
1291
1292 ASSERT(size == sizeof (*ds));
1293 crtime = ds->ds_creation_time;
1294 zdb_nicenum(ds->ds_referenced_bytes, used);
1295 zdb_nicenum(ds->ds_compressed_bytes, compressed);
1296 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed);
1297 zdb_nicenum(ds->ds_unique_bytes, unique);
1298 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1299
1300 (void) printf("\t\tdir_obj = %llu\n",
1301 (u_longlong_t)ds->ds_dir_obj);
1302 (void) printf("\t\tprev_snap_obj = %llu\n",
1303 (u_longlong_t)ds->ds_prev_snap_obj);
1304 (void) printf("\t\tprev_snap_txg = %llu\n",
1305 (u_longlong_t)ds->ds_prev_snap_txg);
1306 (void) printf("\t\tnext_snap_obj = %llu\n",
1307 (u_longlong_t)ds->ds_next_snap_obj);
1308 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1309 (u_longlong_t)ds->ds_snapnames_zapobj);
1310 (void) printf("\t\tnum_children = %llu\n",
1311 (u_longlong_t)ds->ds_num_children);
1312 (void) printf("\t\tuserrefs_obj = %llu\n",
1313 (u_longlong_t)ds->ds_userrefs_obj);
1314 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1315 (void) printf("\t\tcreation_txg = %llu\n",
1316 (u_longlong_t)ds->ds_creation_txg);
1317 (void) printf("\t\tdeadlist_obj = %llu\n",
1318 (u_longlong_t)ds->ds_deadlist_obj);
1319 (void) printf("\t\tused_bytes = %s\n", used);
1320 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1321 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1322 (void) printf("\t\tunique = %s\n", unique);
1323 (void) printf("\t\tfsid_guid = %llu\n",
1324 (u_longlong_t)ds->ds_fsid_guid);
1325 (void) printf("\t\tguid = %llu\n",
1326 (u_longlong_t)ds->ds_guid);
1327 (void) printf("\t\tflags = %llx\n",
1328 (u_longlong_t)ds->ds_flags);
1329 (void) printf("\t\tnext_clones_obj = %llu\n",
1330 (u_longlong_t)ds->ds_next_clones_obj);
1331 (void) printf("\t\tprops_obj = %llu\n",
1332 (u_longlong_t)ds->ds_props_obj);
1333 (void) printf("\t\tbp = %s\n", blkbuf);
1334 }
1335
1336 /* ARGSUSED */
1337 static int
1338 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1339 {
1340 char blkbuf[BP_SPRINTF_LEN];
1341
1342 if (bp->blk_birth != 0) {
1343 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1344 (void) printf("\t%s\n", blkbuf);
1345 }
1346 return (0);
1347 }
1348
1349 static void
1350 dump_bptree(objset_t *os, uint64_t obj, char *name)
1351 {
1352 char bytes[32];
1353 bptree_phys_t *bt;
1354 dmu_buf_t *db;
1355
1356 if (dump_opt['d'] < 3)
1357 return;
1358
1359 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1360 bt = db->db_data;
1361 zdb_nicenum(bt->bt_bytes, bytes);
1362 (void) printf("\n %s: %llu datasets, %s\n",
1363 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1364 dmu_buf_rele(db, FTAG);
1365
1366 if (dump_opt['d'] < 5)
1367 return;
1368
1369 (void) printf("\n");
1370
1371 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1372 }
1373
1374 /* ARGSUSED */
1375 static int
1376 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1377 {
1378 char blkbuf[BP_SPRINTF_LEN];
1379
1380 ASSERT(bp->blk_birth != 0);
1381 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1382 (void) printf("\t%s\n", blkbuf);
1383 return (0);
1384 }
1385
1386 static void
1387 dump_bpobj(bpobj_t *bpo, char *name, int indent)
1388 {
1389 char bytes[32];
1390 char comp[32];
1391 char uncomp[32];
1392 uint64_t i;
1393
1394 if (dump_opt['d'] < 3)
1395 return;
1396
1397 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes);
1398 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1399 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp);
1400 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp);
1401 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1402 "%llu subobjs, %s (%s/%s comp)\n",
1403 indent * 8, name,
1404 (u_longlong_t)bpo->bpo_object,
1405 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1406 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1407 bytes, comp, uncomp);
1408
1409 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1410 uint64_t subobj;
1411 bpobj_t subbpo;
1412 int error;
1413 VERIFY0(dmu_read(bpo->bpo_os,
1414 bpo->bpo_phys->bpo_subobjs,
1415 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1416 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1417 if (error != 0) {
1418 (void) printf("ERROR %u while trying to open "
1419 "subobj id %llu\n",
1420 error, (u_longlong_t)subobj);
1421 continue;
1422 }
1423 dump_bpobj(&subbpo, "subobj", indent + 1);
1424 }
1425 } else {
1426 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1427 indent * 8, name,
1428 (u_longlong_t)bpo->bpo_object,
1429 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1430 bytes);
1431 }
1432
1433 if (dump_opt['d'] < 5)
1434 return;
1435
1436
1437 if (indent == 0) {
1438 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1439 (void) printf("\n");
1440 }
1441 }
1442
1443 static void
1444 dump_deadlist(dsl_deadlist_t *dl)
1445 {
1446 dsl_deadlist_entry_t *dle;
1447 uint64_t unused;
1448 char bytes[32];
1449 char comp[32];
1450 char uncomp[32];
1451
1452 if (dump_opt['d'] < 3)
1453 return;
1454
1455 if (dl->dl_oldfmt) {
1456 dump_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1457 return;
1458 }
1459
1460 zdb_nicenum(dl->dl_phys->dl_used, bytes);
1461 zdb_nicenum(dl->dl_phys->dl_comp, comp);
1462 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp);
1463 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1464 bytes, comp, uncomp);
1465
1466 if (dump_opt['d'] < 4)
1467 return;
1468
1469 (void) printf("\n");
1470
1471 /* force the tree to be loaded */
1472 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1473
1474 for (dle = avl_first(&dl->dl_tree); dle;
1475 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1476 if (dump_opt['d'] >= 5) {
1477 char buf[128];
1478 (void) snprintf(buf, sizeof (buf),
1479 "mintxg %llu -> obj %llu",
1480 (longlong_t)dle->dle_mintxg,
1481 (longlong_t)dle->dle_bpobj.bpo_object);
1482
1483 dump_bpobj(&dle->dle_bpobj, buf, 0);
1484 } else {
1485 (void) printf("mintxg %llu -> obj %llu\n",
1486 (longlong_t)dle->dle_mintxg,
1487 (longlong_t)dle->dle_bpobj.bpo_object);
1488
1489 }
1490 }
1491 }
1492
1493 static avl_tree_t idx_tree;
1494 static avl_tree_t domain_tree;
1495 static boolean_t fuid_table_loaded;
1496 static boolean_t sa_loaded;
1497 sa_attr_type_t *sa_attr_table;
1498
1499 static void
1500 fuid_table_destroy(void)
1501 {
1502 if (fuid_table_loaded) {
1503 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1504 fuid_table_loaded = B_FALSE;
1505 }
1506 }
1507
1508 /*
1509 * print uid or gid information.
1510 * For normal POSIX id just the id is printed in decimal format.
1511 * For CIFS files with FUID the fuid is printed in hex followed by
1512 * the domain-rid string.
1513 */
1514 static void
1515 print_idstr(uint64_t id, const char *id_type)
1516 {
1517 if (FUID_INDEX(id)) {
1518 char *domain;
1519
1520 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1521 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1522 (u_longlong_t)id, domain, (int)FUID_RID(id));
1523 } else {
1524 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1525 }
1526
1527 }
1528
1529 static void
1530 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1531 {
1532 uint32_t uid_idx, gid_idx;
1533
1534 uid_idx = FUID_INDEX(uid);
1535 gid_idx = FUID_INDEX(gid);
1536
1537 /* Load domain table, if not already loaded */
1538 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1539 uint64_t fuid_obj;
1540
1541 /* first find the fuid object. It lives in the master node */
1542 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1543 8, 1, &fuid_obj) == 0);
1544 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1545 (void) zfs_fuid_table_load(os, fuid_obj,
1546 &idx_tree, &domain_tree);
1547 fuid_table_loaded = B_TRUE;
1548 }
1549
1550 print_idstr(uid, "uid");
1551 print_idstr(gid, "gid");
1552 }
1553
1554 static void
1555 dump_znode_sa_xattr(sa_handle_t *hdl)
1556 {
1557 nvlist_t *sa_xattr;
1558 nvpair_t *elem = NULL;
1559 int sa_xattr_size = 0;
1560 int sa_xattr_entries = 0;
1561 int error;
1562 char *sa_xattr_packed;
1563
1564 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size);
1565 if (error || sa_xattr_size == 0)
1566 return;
1567
1568 sa_xattr_packed = malloc(sa_xattr_size);
1569 if (sa_xattr_packed == NULL)
1570 return;
1571
1572 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR],
1573 sa_xattr_packed, sa_xattr_size);
1574 if (error) {
1575 free(sa_xattr_packed);
1576 return;
1577 }
1578
1579 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0);
1580 if (error) {
1581 free(sa_xattr_packed);
1582 return;
1583 }
1584
1585 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL)
1586 sa_xattr_entries++;
1587
1588 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n",
1589 sa_xattr_size, sa_xattr_entries);
1590 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) {
1591 uchar_t *value;
1592 uint_t cnt, idx;
1593
1594 (void) printf("\t\t%s = ", nvpair_name(elem));
1595 nvpair_value_byte_array(elem, &value, &cnt);
1596 for (idx = 0; idx < cnt; ++idx) {
1597 if (isprint(value[idx]))
1598 (void) putchar(value[idx]);
1599 else
1600 (void) printf("\\%3.3o", value[idx]);
1601 }
1602 (void) putchar('\n');
1603 }
1604
1605 nvlist_free(sa_xattr);
1606 free(sa_xattr_packed);
1607 }
1608
1609 /*ARGSUSED*/
1610 static void
1611 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1612 {
1613 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1614 sa_handle_t *hdl;
1615 uint64_t xattr, rdev, gen;
1616 uint64_t uid, gid, mode, fsize, parent, links;
1617 uint64_t pflags;
1618 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1619 time_t z_crtime, z_atime, z_mtime, z_ctime;
1620 sa_bulk_attr_t bulk[12];
1621 int idx = 0;
1622 int error;
1623
1624 if (!sa_loaded) {
1625 uint64_t sa_attrs = 0;
1626 uint64_t version;
1627
1628 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1629 8, 1, &version) == 0);
1630 if (version >= ZPL_VERSION_SA) {
1631 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1632 8, 1, &sa_attrs) == 0);
1633 }
1634 if ((error = sa_setup(os, sa_attrs, zfs_attr_table,
1635 ZPL_END, &sa_attr_table)) != 0) {
1636 (void) printf("sa_setup failed errno %d, can't "
1637 "display znode contents\n", error);
1638 return;
1639 }
1640 sa_loaded = B_TRUE;
1641 }
1642
1643 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1644 (void) printf("Failed to get handle for SA znode\n");
1645 return;
1646 }
1647
1648 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1649 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1650 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1651 &links, 8);
1652 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1653 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1654 &mode, 8);
1655 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1656 NULL, &parent, 8);
1657 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1658 &fsize, 8);
1659 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1660 acctm, 16);
1661 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1662 modtm, 16);
1663 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1664 crtm, 16);
1665 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1666 chgtm, 16);
1667 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1668 &pflags, 8);
1669
1670 if (sa_bulk_lookup(hdl, bulk, idx)) {
1671 (void) sa_handle_destroy(hdl);
1672 return;
1673 }
1674
1675 error = zfs_obj_to_path(os, object, path, sizeof (path));
1676 if (error != 0) {
1677 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>",
1678 (u_longlong_t)object);
1679 }
1680 if (dump_opt['d'] < 3) {
1681 (void) printf("\t%s\n", path);
1682 (void) sa_handle_destroy(hdl);
1683 return;
1684 }
1685
1686 z_crtime = (time_t)crtm[0];
1687 z_atime = (time_t)acctm[0];
1688 z_mtime = (time_t)modtm[0];
1689 z_ctime = (time_t)chgtm[0];
1690
1691 (void) printf("\tpath %s\n", path);
1692 dump_uidgid(os, uid, gid);
1693 (void) printf("\tatime %s", ctime(&z_atime));
1694 (void) printf("\tmtime %s", ctime(&z_mtime));
1695 (void) printf("\tctime %s", ctime(&z_ctime));
1696 (void) printf("\tcrtime %s", ctime(&z_crtime));
1697 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
1698 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
1699 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
1700 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
1701 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
1702 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
1703 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
1704 sizeof (uint64_t)) == 0)
1705 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
1706 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
1707 sizeof (uint64_t)) == 0)
1708 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
1709 dump_znode_sa_xattr(hdl);
1710 sa_handle_destroy(hdl);
1711 }
1712
1713 /*ARGSUSED*/
1714 static void
1715 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
1716 {
1717 }
1718
1719 /*ARGSUSED*/
1720 static void
1721 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
1722 {
1723 }
1724
1725 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
1726 dump_none, /* unallocated */
1727 dump_zap, /* object directory */
1728 dump_uint64, /* object array */
1729 dump_none, /* packed nvlist */
1730 dump_packed_nvlist, /* packed nvlist size */
1731 dump_none, /* bplist */
1732 dump_none, /* bplist header */
1733 dump_none, /* SPA space map header */
1734 dump_none, /* SPA space map */
1735 dump_none, /* ZIL intent log */
1736 dump_dnode, /* DMU dnode */
1737 dump_dmu_objset, /* DMU objset */
1738 dump_dsl_dir, /* DSL directory */
1739 dump_zap, /* DSL directory child map */
1740 dump_zap, /* DSL dataset snap map */
1741 dump_zap, /* DSL props */
1742 dump_dsl_dataset, /* DSL dataset */
1743 dump_znode, /* ZFS znode */
1744 dump_acl, /* ZFS V0 ACL */
1745 dump_uint8, /* ZFS plain file */
1746 dump_zpldir, /* ZFS directory */
1747 dump_zap, /* ZFS master node */
1748 dump_zap, /* ZFS delete queue */
1749 dump_uint8, /* zvol object */
1750 dump_zap, /* zvol prop */
1751 dump_uint8, /* other uint8[] */
1752 dump_uint64, /* other uint64[] */
1753 dump_zap, /* other ZAP */
1754 dump_zap, /* persistent error log */
1755 dump_uint8, /* SPA history */
1756 dump_history_offsets, /* SPA history offsets */
1757 dump_zap, /* Pool properties */
1758 dump_zap, /* DSL permissions */
1759 dump_acl, /* ZFS ACL */
1760 dump_uint8, /* ZFS SYSACL */
1761 dump_none, /* FUID nvlist */
1762 dump_packed_nvlist, /* FUID nvlist size */
1763 dump_zap, /* DSL dataset next clones */
1764 dump_zap, /* DSL scrub queue */
1765 dump_zap, /* ZFS user/group used */
1766 dump_zap, /* ZFS user/group quota */
1767 dump_zap, /* snapshot refcount tags */
1768 dump_ddt_zap, /* DDT ZAP object */
1769 dump_zap, /* DDT statistics */
1770 dump_znode, /* SA object */
1771 dump_zap, /* SA Master Node */
1772 dump_sa_attrs, /* SA attribute registration */
1773 dump_sa_layouts, /* SA attribute layouts */
1774 dump_zap, /* DSL scrub translations */
1775 dump_none, /* fake dedup BP */
1776 dump_zap, /* deadlist */
1777 dump_none, /* deadlist hdr */
1778 dump_zap, /* dsl clones */
1779 dump_none, /* bpobj subobjs */
1780 dump_unknown, /* Unknown type, must be last */
1781 };
1782
1783 static void
1784 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header)
1785 {
1786 dmu_buf_t *db = NULL;
1787 dmu_object_info_t doi;
1788 dnode_t *dn;
1789 void *bonus = NULL;
1790 size_t bsize = 0;
1791 char iblk[32], dblk[32], lsize[32], asize[32], fill[32];
1792 char bonus_size[32];
1793 char aux[50];
1794 int error;
1795
1796 if (*print_header) {
1797 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n",
1798 "Object", "lvl", "iblk", "dblk", "dsize", "lsize",
1799 "%full", "type");
1800 *print_header = 0;
1801 }
1802
1803 if (object == 0) {
1804 dn = DMU_META_DNODE(os);
1805 } else {
1806 error = dmu_bonus_hold(os, object, FTAG, &db);
1807 if (error)
1808 fatal("dmu_bonus_hold(%llu) failed, errno %u",
1809 object, error);
1810 bonus = db->db_data;
1811 bsize = db->db_size;
1812 dn = DB_DNODE((dmu_buf_impl_t *)db);
1813 }
1814 dmu_object_info_from_dnode(dn, &doi);
1815
1816 zdb_nicenum(doi.doi_metadata_block_size, iblk);
1817 zdb_nicenum(doi.doi_data_block_size, dblk);
1818 zdb_nicenum(doi.doi_max_offset, lsize);
1819 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize);
1820 zdb_nicenum(doi.doi_bonus_size, bonus_size);
1821 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
1822 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
1823 doi.doi_max_offset);
1824
1825 aux[0] = '\0';
1826
1827 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
1828 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)",
1829 ZDB_CHECKSUM_NAME(doi.doi_checksum));
1830 }
1831
1832 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
1833 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)",
1834 ZDB_COMPRESS_NAME(doi.doi_compress));
1835 }
1836
1837 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n",
1838 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
1839 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux);
1840
1841 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
1842 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n",
1843 "", "", "", "", "", bonus_size, "bonus",
1844 ZDB_OT_NAME(doi.doi_bonus_type));
1845 }
1846
1847 if (verbosity >= 4) {
1848 (void) printf("\tdnode flags: %s%s%s\n",
1849 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
1850 "USED_BYTES " : "",
1851 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
1852 "USERUSED_ACCOUNTED " : "",
1853 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
1854 "SPILL_BLKPTR" : "");
1855 (void) printf("\tdnode maxblkid: %llu\n",
1856 (longlong_t)dn->dn_phys->dn_maxblkid);
1857
1858 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object,
1859 bonus, bsize);
1860 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0);
1861 *print_header = 1;
1862 }
1863
1864 if (verbosity >= 5)
1865 dump_indirect(dn);
1866
1867 if (verbosity >= 5) {
1868 /*
1869 * Report the list of segments that comprise the object.
1870 */
1871 uint64_t start = 0;
1872 uint64_t end;
1873 uint64_t blkfill = 1;
1874 int minlvl = 1;
1875
1876 if (dn->dn_type == DMU_OT_DNODE) {
1877 minlvl = 0;
1878 blkfill = DNODES_PER_BLOCK;
1879 }
1880
1881 for (;;) {
1882 char segsize[32];
1883 error = dnode_next_offset(dn,
1884 0, &start, minlvl, blkfill, 0);
1885 if (error)
1886 break;
1887 end = start;
1888 error = dnode_next_offset(dn,
1889 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
1890 zdb_nicenum(end - start, segsize);
1891 (void) printf("\t\tsegment [%016llx, %016llx)"
1892 " size %5s\n", (u_longlong_t)start,
1893 (u_longlong_t)end, segsize);
1894 if (error)
1895 break;
1896 start = end;
1897 }
1898 }
1899
1900 if (db != NULL)
1901 dmu_buf_rele(db, FTAG);
1902 }
1903
1904 static char *objset_types[DMU_OST_NUMTYPES] = {
1905 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
1906
1907 static void
1908 dump_dir(objset_t *os)
1909 {
1910 dmu_objset_stats_t dds;
1911 uint64_t object, object_count;
1912 uint64_t refdbytes, usedobjs, scratch;
1913 char numbuf[32];
1914 char blkbuf[BP_SPRINTF_LEN + 20];
1915 char osname[MAXNAMELEN];
1916 char *type = "UNKNOWN";
1917 int verbosity = dump_opt['d'];
1918 int print_header = 1;
1919 int i, error;
1920
1921 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
1922 dmu_objset_fast_stat(os, &dds);
1923 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
1924
1925 if (dds.dds_type < DMU_OST_NUMTYPES)
1926 type = objset_types[dds.dds_type];
1927
1928 if (dds.dds_type == DMU_OST_META) {
1929 dds.dds_creation_txg = TXG_INITIAL;
1930 usedobjs = BP_GET_FILL(os->os_rootbp);
1931 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
1932 dd_used_bytes;
1933 } else {
1934 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
1935 }
1936
1937 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
1938
1939 zdb_nicenum(refdbytes, numbuf);
1940
1941 if (verbosity >= 4) {
1942 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
1943 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
1944 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
1945 } else {
1946 blkbuf[0] = '\0';
1947 }
1948
1949 dmu_objset_name(os, osname);
1950
1951 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
1952 "%s, %llu objects%s\n",
1953 osname, type, (u_longlong_t)dmu_objset_id(os),
1954 (u_longlong_t)dds.dds_creation_txg,
1955 numbuf, (u_longlong_t)usedobjs, blkbuf);
1956
1957 if (zopt_objects != 0) {
1958 for (i = 0; i < zopt_objects; i++)
1959 dump_object(os, zopt_object[i], verbosity,
1960 &print_header);
1961 (void) printf("\n");
1962 return;
1963 }
1964
1965 if (dump_opt['i'] != 0 || verbosity >= 2)
1966 dump_intent_log(dmu_objset_zil(os));
1967
1968 if (dmu_objset_ds(os) != NULL)
1969 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist);
1970
1971 if (verbosity < 2)
1972 return;
1973
1974 if (BP_IS_HOLE(os->os_rootbp))
1975 return;
1976
1977 dump_object(os, 0, verbosity, &print_header);
1978 object_count = 0;
1979 if (DMU_USERUSED_DNODE(os) != NULL &&
1980 DMU_USERUSED_DNODE(os)->dn_type != 0) {
1981 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header);
1982 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header);
1983 }
1984
1985 object = 0;
1986 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
1987 dump_object(os, object, verbosity, &print_header);
1988 object_count++;
1989 }
1990
1991 ASSERT3U(object_count, ==, usedobjs);
1992
1993 (void) printf("\n");
1994
1995 if (error != ESRCH) {
1996 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
1997 abort();
1998 }
1999 }
2000
2001 static void
2002 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2003 {
2004 time_t timestamp = ub->ub_timestamp;
2005
2006 (void) printf("%s", header ? header : "");
2007 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2008 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2009 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2010 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2011 (void) printf("\ttimestamp = %llu UTC = %s",
2012 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2013 if (dump_opt['u'] >= 3) {
2014 char blkbuf[BP_SPRINTF_LEN];
2015 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2016 (void) printf("\trootbp = %s\n", blkbuf);
2017 }
2018 (void) printf("%s", footer ? footer : "");
2019 }
2020
2021 static void
2022 dump_config(spa_t *spa)
2023 {
2024 dmu_buf_t *db;
2025 size_t nvsize = 0;
2026 int error = 0;
2027
2028
2029 error = dmu_bonus_hold(spa->spa_meta_objset,
2030 spa->spa_config_object, FTAG, &db);
2031
2032 if (error == 0) {
2033 nvsize = *(uint64_t *)db->db_data;
2034 dmu_buf_rele(db, FTAG);
2035
2036 (void) printf("\nMOS Configuration:\n");
2037 dump_packed_nvlist(spa->spa_meta_objset,
2038 spa->spa_config_object, (void *)&nvsize, 1);
2039 } else {
2040 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2041 (u_longlong_t)spa->spa_config_object, error);
2042 }
2043 }
2044
2045 static void
2046 dump_cachefile(const char *cachefile)
2047 {
2048 int fd;
2049 struct stat64 statbuf;
2050 char *buf;
2051 nvlist_t *config;
2052
2053 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2054 (void) printf("cannot open '%s': %s\n", cachefile,
2055 strerror(errno));
2056 exit(1);
2057 }
2058
2059 if (fstat64(fd, &statbuf) != 0) {
2060 (void) printf("failed to stat '%s': %s\n", cachefile,
2061 strerror(errno));
2062 exit(1);
2063 }
2064
2065 if ((buf = malloc(statbuf.st_size)) == NULL) {
2066 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2067 (u_longlong_t)statbuf.st_size);
2068 exit(1);
2069 }
2070
2071 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2072 (void) fprintf(stderr, "failed to read %llu bytes\n",
2073 (u_longlong_t)statbuf.st_size);
2074 exit(1);
2075 }
2076
2077 (void) close(fd);
2078
2079 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2080 (void) fprintf(stderr, "failed to unpack nvlist\n");
2081 exit(1);
2082 }
2083
2084 free(buf);
2085
2086 dump_nvlist(config, 0);
2087
2088 nvlist_free(config);
2089 }
2090
2091 #define ZDB_MAX_UB_HEADER_SIZE 32
2092
2093 static void
2094 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift)
2095 {
2096 vdev_t vd;
2097 vdev_t *vdp = &vd;
2098 char header[ZDB_MAX_UB_HEADER_SIZE];
2099 int i;
2100
2101 vd.vdev_ashift = ashift;
2102 vdp->vdev_top = vdp;
2103
2104 for (i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) {
2105 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i);
2106 uberblock_t *ub = (void *)((char *)lbl + uoff);
2107
2108 if (uberblock_verify(ub))
2109 continue;
2110 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2111 "Uberblock[%d]\n", i);
2112 dump_uberblock(ub, header, "");
2113 }
2114 }
2115
2116 static void
2117 dump_label(const char *dev)
2118 {
2119 int fd;
2120 vdev_label_t label;
2121 char *path, *buf = label.vl_vdev_phys.vp_nvlist;
2122 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist);
2123 struct stat64 statbuf;
2124 uint64_t psize, ashift;
2125 int len = strlen(dev) + 1;
2126 int l;
2127
2128 if (strncmp(dev, "/dev/dsk/", 9) == 0) {
2129 len++;
2130 path = malloc(len);
2131 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9);
2132 } else {
2133 path = strdup(dev);
2134 }
2135
2136 if ((fd = open64(path, O_RDONLY)) < 0) {
2137 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2138 free(path);
2139 exit(1);
2140 }
2141
2142 if (fstat64_blk(fd, &statbuf) != 0) {
2143 (void) printf("failed to stat '%s': %s\n", path,
2144 strerror(errno));
2145 free(path);
2146 (void) close(fd);
2147 exit(1);
2148 }
2149
2150 psize = statbuf.st_size;
2151 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2152
2153 for (l = 0; l < VDEV_LABELS; l++) {
2154 nvlist_t *config = NULL;
2155
2156 (void) printf("--------------------------------------------\n");
2157 (void) printf("LABEL %d\n", l);
2158 (void) printf("--------------------------------------------\n");
2159
2160 if (pread64(fd, &label, sizeof (label),
2161 vdev_label_offset(psize, l, 0)) != sizeof (label)) {
2162 (void) printf("failed to read label %d\n", l);
2163 continue;
2164 }
2165
2166 if (nvlist_unpack(buf, buflen, &config, 0) != 0) {
2167 (void) printf("failed to unpack label %d\n", l);
2168 ashift = SPA_MINBLOCKSHIFT;
2169 } else {
2170 nvlist_t *vdev_tree = NULL;
2171
2172 dump_nvlist(config, 4);
2173 if ((nvlist_lookup_nvlist(config,
2174 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2175 (nvlist_lookup_uint64(vdev_tree,
2176 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2177 ashift = SPA_MINBLOCKSHIFT;
2178 nvlist_free(config);
2179 }
2180 if (dump_opt['u'])
2181 dump_label_uberblocks(&label, ashift);
2182 }
2183
2184 free(path);
2185 (void) close(fd);
2186 }
2187
2188 /*ARGSUSED*/
2189 static int
2190 dump_one_dir(const char *dsname, void *arg)
2191 {
2192 int error;
2193 objset_t *os;
2194
2195 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os);
2196 if (error) {
2197 (void) printf("Could not open %s, error %d\n", dsname, error);
2198 return (0);
2199 }
2200 dump_dir(os);
2201 dmu_objset_disown(os, FTAG);
2202 fuid_table_destroy();
2203 sa_loaded = B_FALSE;
2204 return (0);
2205 }
2206
2207 /*
2208 * Block statistics.
2209 */
2210 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1)
2211 typedef struct zdb_blkstats {
2212 uint64_t zb_asize;
2213 uint64_t zb_lsize;
2214 uint64_t zb_psize;
2215 uint64_t zb_count;
2216 uint64_t zb_gangs;
2217 uint64_t zb_ditto_samevdev;
2218 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
2219 } zdb_blkstats_t;
2220
2221 /*
2222 * Extended object types to report deferred frees and dedup auto-ditto blocks.
2223 */
2224 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
2225 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
2226 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
2227 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
2228
2229 static char *zdb_ot_extname[] = {
2230 "deferred free",
2231 "dedup ditto",
2232 "other",
2233 "Total",
2234 };
2235
2236 #define ZB_TOTAL DN_MAX_LEVELS
2237
2238 typedef struct zdb_cb {
2239 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
2240 uint64_t zcb_dedup_asize;
2241 uint64_t zcb_dedup_blocks;
2242 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
2243 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
2244 [BPE_PAYLOAD_SIZE];
2245 uint64_t zcb_start;
2246 uint64_t zcb_lastprint;
2247 uint64_t zcb_totalasize;
2248 uint64_t zcb_errors[256];
2249 int zcb_readfails;
2250 int zcb_haderrors;
2251 spa_t *zcb_spa;
2252 } zdb_cb_t;
2253
2254 static void
2255 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
2256 dmu_object_type_t type)
2257 {
2258 uint64_t refcnt = 0;
2259 int i;
2260
2261 ASSERT(type < ZDB_OT_TOTAL);
2262
2263 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
2264 return;
2265
2266 for (i = 0; i < 4; i++) {
2267 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
2268 int t = (i & 1) ? type : ZDB_OT_TOTAL;
2269 int equal;
2270 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
2271
2272 zb->zb_asize += BP_GET_ASIZE(bp);
2273 zb->zb_lsize += BP_GET_LSIZE(bp);
2274 zb->zb_psize += BP_GET_PSIZE(bp);
2275 zb->zb_count++;
2276 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++;
2277
2278 zb->zb_gangs += BP_COUNT_GANG(bp);
2279
2280 switch (BP_GET_NDVAS(bp)) {
2281 case 2:
2282 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2283 DVA_GET_VDEV(&bp->blk_dva[1]))
2284 zb->zb_ditto_samevdev++;
2285 break;
2286 case 3:
2287 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2288 DVA_GET_VDEV(&bp->blk_dva[1])) +
2289 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
2290 DVA_GET_VDEV(&bp->blk_dva[2])) +
2291 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
2292 DVA_GET_VDEV(&bp->blk_dva[2]));
2293 if (equal != 0)
2294 zb->zb_ditto_samevdev++;
2295 break;
2296 }
2297
2298 }
2299
2300 if (BP_IS_EMBEDDED(bp)) {
2301 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
2302 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
2303 [BPE_GET_PSIZE(bp)]++;
2304 return;
2305 }
2306
2307 if (dump_opt['L'])
2308 return;
2309
2310 if (BP_GET_DEDUP(bp)) {
2311 ddt_t *ddt;
2312 ddt_entry_t *dde;
2313
2314 ddt = ddt_select(zcb->zcb_spa, bp);
2315 ddt_enter(ddt);
2316 dde = ddt_lookup(ddt, bp, B_FALSE);
2317
2318 if (dde == NULL) {
2319 refcnt = 0;
2320 } else {
2321 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
2322 ddt_phys_decref(ddp);
2323 refcnt = ddp->ddp_refcnt;
2324 if (ddt_phys_total_refcnt(dde) == 0)
2325 ddt_remove(ddt, dde);
2326 }
2327 ddt_exit(ddt);
2328 }
2329
2330 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
2331 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
2332 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
2333 }
2334
2335 static void
2336 zdb_blkptr_done(zio_t *zio)
2337 {
2338 spa_t *spa = zio->io_spa;
2339 blkptr_t *bp = zio->io_bp;
2340 int ioerr = zio->io_error;
2341 zdb_cb_t *zcb = zio->io_private;
2342 zbookmark_phys_t *zb = &zio->io_bookmark;
2343
2344 zio_data_buf_free(zio->io_data, zio->io_size);
2345
2346 mutex_enter(&spa->spa_scrub_lock);
2347 spa->spa_scrub_inflight--;
2348 cv_broadcast(&spa->spa_scrub_io_cv);
2349
2350 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
2351 char blkbuf[BP_SPRINTF_LEN];
2352
2353 zcb->zcb_haderrors = 1;
2354 zcb->zcb_errors[ioerr]++;
2355
2356 if (dump_opt['b'] >= 2)
2357 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2358 else
2359 blkbuf[0] = '\0';
2360
2361 (void) printf("zdb_blkptr_cb: "
2362 "Got error %d reading "
2363 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
2364 ioerr,
2365 (u_longlong_t)zb->zb_objset,
2366 (u_longlong_t)zb->zb_object,
2367 (u_longlong_t)zb->zb_level,
2368 (u_longlong_t)zb->zb_blkid,
2369 blkbuf);
2370 }
2371 mutex_exit(&spa->spa_scrub_lock);
2372 }
2373
2374 static int
2375 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2376 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2377 {
2378 zdb_cb_t *zcb = arg;
2379 dmu_object_type_t type;
2380 boolean_t is_metadata;
2381
2382 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
2383 char blkbuf[BP_SPRINTF_LEN];
2384 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2385 (void) printf("objset %llu object %llu "
2386 "level %lld offset 0x%llx %s\n",
2387 (u_longlong_t)zb->zb_objset,
2388 (u_longlong_t)zb->zb_object,
2389 (longlong_t)zb->zb_level,
2390 (u_longlong_t)blkid2offset(dnp, bp, zb),
2391 blkbuf);
2392 }
2393
2394 if (BP_IS_HOLE(bp))
2395 return (0);
2396
2397 type = BP_GET_TYPE(bp);
2398
2399 zdb_count_block(zcb, zilog, bp,
2400 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
2401
2402 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
2403
2404 if (!BP_IS_EMBEDDED(bp) &&
2405 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
2406 size_t size = BP_GET_PSIZE(bp);
2407 void *data = zio_data_buf_alloc(size);
2408 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
2409
2410 /* If it's an intent log block, failure is expected. */
2411 if (zb->zb_level == ZB_ZIL_LEVEL)
2412 flags |= ZIO_FLAG_SPECULATIVE;
2413
2414 mutex_enter(&spa->spa_scrub_lock);
2415 while (spa->spa_scrub_inflight > max_inflight)
2416 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
2417 spa->spa_scrub_inflight++;
2418 mutex_exit(&spa->spa_scrub_lock);
2419
2420 zio_nowait(zio_read(NULL, spa, bp, data, size,
2421 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
2422 }
2423
2424 zcb->zcb_readfails = 0;
2425
2426 if (dump_opt['b'] < 5 &&
2427 gethrtime() > zcb->zcb_lastprint + NANOSEC) {
2428 uint64_t now = gethrtime();
2429 char buf[10];
2430 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
2431 int kb_per_sec =
2432 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
2433 int sec_remaining =
2434 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
2435
2436 zfs_nicenum(bytes, buf, sizeof (buf));
2437 (void) fprintf(stderr,
2438 "\r%5s completed (%4dMB/s) "
2439 "estimated time remaining: %uhr %02umin %02usec ",
2440 buf, kb_per_sec / 1024,
2441 sec_remaining / 60 / 60,
2442 sec_remaining / 60 % 60,
2443 sec_remaining % 60);
2444
2445 zcb->zcb_lastprint = now;
2446 }
2447
2448 return (0);
2449 }
2450
2451 static void
2452 zdb_leak(void *arg, uint64_t start, uint64_t size)
2453 {
2454 vdev_t *vd = arg;
2455
2456 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
2457 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
2458 }
2459
2460 static metaslab_ops_t zdb_metaslab_ops = {
2461 NULL /* alloc */
2462 };
2463
2464 static void
2465 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
2466 {
2467 ddt_bookmark_t ddb = { 0 };
2468 ddt_entry_t dde;
2469 int error;
2470 int p;
2471
2472 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
2473 blkptr_t blk;
2474 ddt_phys_t *ddp = dde.dde_phys;
2475
2476 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
2477 return;
2478
2479 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
2480
2481 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
2482 if (ddp->ddp_phys_birth == 0)
2483 continue;
2484 ddt_bp_create(ddb.ddb_checksum,
2485 &dde.dde_key, ddp, &blk);
2486 if (p == DDT_PHYS_DITTO) {
2487 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
2488 } else {
2489 zcb->zcb_dedup_asize +=
2490 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
2491 zcb->zcb_dedup_blocks++;
2492 }
2493 }
2494 if (!dump_opt['L']) {
2495 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
2496 ddt_enter(ddt);
2497 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
2498 ddt_exit(ddt);
2499 }
2500 }
2501
2502 ASSERT(error == ENOENT);
2503 }
2504
2505 static void
2506 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
2507 {
2508 zcb->zcb_spa = spa;
2509 uint64_t c, m;
2510
2511 if (!dump_opt['L']) {
2512 vdev_t *rvd = spa->spa_root_vdev;
2513 for (c = 0; c < rvd->vdev_children; c++) {
2514 vdev_t *vd = rvd->vdev_child[c];
2515 for (m = 0; m < vd->vdev_ms_count; m++) {
2516 metaslab_t *msp = vd->vdev_ms[m];
2517 mutex_enter(&msp->ms_lock);
2518 metaslab_unload(msp);
2519
2520 /*
2521 * For leak detection, we overload the metaslab
2522 * ms_tree to contain allocated segments
2523 * instead of free segments. As a result,
2524 * we can't use the normal metaslab_load/unload
2525 * interfaces.
2526 */
2527 if (msp->ms_sm != NULL) {
2528 (void) fprintf(stderr,
2529 "\rloading space map for "
2530 "vdev %llu of %llu, "
2531 "metaslab %llu of %llu ...",
2532 (longlong_t)c,
2533 (longlong_t)rvd->vdev_children,
2534 (longlong_t)m,
2535 (longlong_t)vd->vdev_ms_count);
2536
2537 msp->ms_ops = &zdb_metaslab_ops;
2538 VERIFY0(space_map_load(msp->ms_sm,
2539 msp->ms_tree, SM_ALLOC));
2540 msp->ms_loaded = B_TRUE;
2541 }
2542 mutex_exit(&msp->ms_lock);
2543 }
2544 }
2545 (void) fprintf(stderr, "\n");
2546 }
2547
2548 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2549
2550 zdb_ddt_leak_init(spa, zcb);
2551
2552 spa_config_exit(spa, SCL_CONFIG, FTAG);
2553 }
2554
2555 static void
2556 zdb_leak_fini(spa_t *spa)
2557 {
2558 int c, m;
2559
2560 if (!dump_opt['L']) {
2561 vdev_t *rvd = spa->spa_root_vdev;
2562 for (c = 0; c < rvd->vdev_children; c++) {
2563 vdev_t *vd = rvd->vdev_child[c];
2564 for (m = 0; m < vd->vdev_ms_count; m++) {
2565 metaslab_t *msp = vd->vdev_ms[m];
2566 mutex_enter(&msp->ms_lock);
2567
2568 /*
2569 * The ms_tree has been overloaded to
2570 * contain allocated segments. Now that we
2571 * finished traversing all blocks, any
2572 * block that remains in the ms_tree
2573 * represents an allocated block that we
2574 * did not claim during the traversal.
2575 * Claimed blocks would have been removed
2576 * from the ms_tree.
2577 */
2578 range_tree_vacate(msp->ms_tree, zdb_leak, vd);
2579 msp->ms_loaded = B_FALSE;
2580
2581 mutex_exit(&msp->ms_lock);
2582 }
2583 }
2584 }
2585 }
2586
2587 /* ARGSUSED */
2588 static int
2589 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
2590 {
2591 zdb_cb_t *zcb = arg;
2592
2593 if (dump_opt['b'] >= 5) {
2594 char blkbuf[BP_SPRINTF_LEN];
2595 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
2596 (void) printf("[%s] %s\n",
2597 "deferred free", blkbuf);
2598 }
2599 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
2600 return (0);
2601 }
2602
2603 static int
2604 dump_block_stats(spa_t *spa)
2605 {
2606 zdb_cb_t zcb;
2607 zdb_blkstats_t *zb, *tzb;
2608 uint64_t norm_alloc, norm_space, total_alloc, total_found;
2609 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD;
2610 boolean_t leaks = B_FALSE;
2611 int e, c;
2612 bp_embedded_type_t i;
2613
2614 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
2615 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
2616 (dump_opt['c'] == 1) ? "metadata " : "",
2617 dump_opt['c'] ? "checksums " : "",
2618 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
2619 !dump_opt['L'] ? "nothing leaked " : "");
2620
2621 /*
2622 * Load all space maps as SM_ALLOC maps, then traverse the pool
2623 * claiming each block we discover. If the pool is perfectly
2624 * consistent, the space maps will be empty when we're done.
2625 * Anything left over is a leak; any block we can't claim (because
2626 * it's not part of any space map) is a double allocation,
2627 * reference to a freed block, or an unclaimed log block.
2628 */
2629 bzero(&zcb, sizeof (zdb_cb_t));
2630 zdb_leak_init(spa, &zcb);
2631
2632 /*
2633 * If there's a deferred-free bplist, process that first.
2634 */
2635 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
2636 count_block_cb, &zcb, NULL);
2637 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2638 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
2639 count_block_cb, &zcb, NULL);
2640 }
2641 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
2642 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
2643 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
2644 &zcb, NULL));
2645 }
2646
2647 if (dump_opt['c'] > 1)
2648 flags |= TRAVERSE_PREFETCH_DATA;
2649
2650 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
2651 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
2652 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
2653
2654 /*
2655 * If we've traversed the data blocks then we need to wait for those
2656 * I/Os to complete. We leverage "The Godfather" zio to wait on
2657 * all async I/Os to complete.
2658 */
2659 if (dump_opt['c']) {
2660 for (c = 0; c < max_ncpus; c++) {
2661 (void) zio_wait(spa->spa_async_zio_root[c]);
2662 spa->spa_async_zio_root[c] = zio_root(spa, NULL, NULL,
2663 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
2664 ZIO_FLAG_GODFATHER);
2665 }
2666 }
2667
2668 if (zcb.zcb_haderrors) {
2669 (void) printf("\nError counts:\n\n");
2670 (void) printf("\t%5s %s\n", "errno", "count");
2671 for (e = 0; e < 256; e++) {
2672 if (zcb.zcb_errors[e] != 0) {
2673 (void) printf("\t%5d %llu\n",
2674 e, (u_longlong_t)zcb.zcb_errors[e]);
2675 }
2676 }
2677 }
2678
2679 /*
2680 * Report any leaked segments.
2681 */
2682 zdb_leak_fini(spa);
2683
2684 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
2685
2686 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
2687 norm_space = metaslab_class_get_space(spa_normal_class(spa));
2688
2689 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
2690 total_found = tzb->zb_asize - zcb.zcb_dedup_asize;
2691
2692 if (total_found == total_alloc) {
2693 if (!dump_opt['L'])
2694 (void) printf("\n\tNo leaks (block sum matches space"
2695 " maps exactly)\n");
2696 } else {
2697 (void) printf("block traversal size %llu != alloc %llu "
2698 "(%s %lld)\n",
2699 (u_longlong_t)total_found,
2700 (u_longlong_t)total_alloc,
2701 (dump_opt['L']) ? "unreachable" : "leaked",
2702 (longlong_t)(total_alloc - total_found));
2703 leaks = B_TRUE;
2704 }
2705
2706 if (tzb->zb_count == 0)
2707 return (2);
2708
2709 (void) printf("\n");
2710 (void) printf("\tbp count: %10llu\n",
2711 (u_longlong_t)tzb->zb_count);
2712 (void) printf("\tganged count: %10llu\n",
2713 (longlong_t)tzb->zb_gangs);
2714 (void) printf("\tbp logical: %10llu avg: %6llu\n",
2715 (u_longlong_t)tzb->zb_lsize,
2716 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
2717 (void) printf("\tbp physical: %10llu avg:"
2718 " %6llu compression: %6.2f\n",
2719 (u_longlong_t)tzb->zb_psize,
2720 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
2721 (double)tzb->zb_lsize / tzb->zb_psize);
2722 (void) printf("\tbp allocated: %10llu avg:"
2723 " %6llu compression: %6.2f\n",
2724 (u_longlong_t)tzb->zb_asize,
2725 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
2726 (double)tzb->zb_lsize / tzb->zb_asize);
2727 (void) printf("\tbp deduped: %10llu ref>1:"
2728 " %6llu deduplication: %6.2f\n",
2729 (u_longlong_t)zcb.zcb_dedup_asize,
2730 (u_longlong_t)zcb.zcb_dedup_blocks,
2731 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
2732 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
2733 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
2734
2735 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
2736 if (zcb.zcb_embedded_blocks[i] == 0)
2737 continue;
2738 (void) printf("\n");
2739 (void) printf("\tadditional, non-pointer bps of type %u: "
2740 "%10llu\n",
2741 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
2742
2743 if (dump_opt['b'] >= 3) {
2744 (void) printf("\t number of (compressed) bytes: "
2745 "number of bps\n");
2746 dump_histogram(zcb.zcb_embedded_histogram[i],
2747 sizeof (zcb.zcb_embedded_histogram[i]) /
2748 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
2749 }
2750 }
2751
2752 if (tzb->zb_ditto_samevdev != 0) {
2753 (void) printf("\tDittoed blocks on same vdev: %llu\n",
2754 (longlong_t)tzb->zb_ditto_samevdev);
2755 }
2756
2757 if (dump_opt['b'] >= 2) {
2758 int l, t, level;
2759 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
2760 "\t avg\t comp\t%%Total\tType\n");
2761
2762 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
2763 char csize[32], lsize[32], psize[32], asize[32];
2764 char avg[32], gang[32];
2765 char *typename;
2766
2767 if (t < DMU_OT_NUMTYPES)
2768 typename = dmu_ot[t].ot_name;
2769 else
2770 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
2771
2772 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
2773 (void) printf("%6s\t%5s\t%5s\t%5s"
2774 "\t%5s\t%5s\t%6s\t%s\n",
2775 "-",
2776 "-",
2777 "-",
2778 "-",
2779 "-",
2780 "-",
2781 "-",
2782 typename);
2783 continue;
2784 }
2785
2786 for (l = ZB_TOTAL - 1; l >= -1; l--) {
2787 level = (l == -1 ? ZB_TOTAL : l);
2788 zb = &zcb.zcb_type[level][t];
2789
2790 if (zb->zb_asize == 0)
2791 continue;
2792
2793 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
2794 continue;
2795
2796 if (level == 0 && zb->zb_asize ==
2797 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
2798 continue;
2799
2800 zdb_nicenum(zb->zb_count, csize);
2801 zdb_nicenum(zb->zb_lsize, lsize);
2802 zdb_nicenum(zb->zb_psize, psize);
2803 zdb_nicenum(zb->zb_asize, asize);
2804 zdb_nicenum(zb->zb_asize / zb->zb_count, avg);
2805 zdb_nicenum(zb->zb_gangs, gang);
2806
2807 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
2808 "\t%5.2f\t%6.2f\t",
2809 csize, lsize, psize, asize, avg,
2810 (double)zb->zb_lsize / zb->zb_psize,
2811 100.0 * zb->zb_asize / tzb->zb_asize);
2812
2813 if (level == ZB_TOTAL)
2814 (void) printf("%s\n", typename);
2815 else
2816 (void) printf(" L%d %s\n",
2817 level, typename);
2818
2819 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
2820 (void) printf("\t number of ganged "
2821 "blocks: %s\n", gang);
2822 }
2823
2824 if (dump_opt['b'] >= 4) {
2825 (void) printf("psize "
2826 "(in 512-byte sectors): "
2827 "number of blocks\n");
2828 dump_histogram(zb->zb_psize_histogram,
2829 PSIZE_HISTO_SIZE, 0);
2830 }
2831 }
2832 }
2833 }
2834
2835 (void) printf("\n");
2836
2837 if (leaks)
2838 return (2);
2839
2840 if (zcb.zcb_haderrors)
2841 return (3);
2842
2843 return (0);
2844 }
2845
2846 typedef struct zdb_ddt_entry {
2847 ddt_key_t zdde_key;
2848 uint64_t zdde_ref_blocks;
2849 uint64_t zdde_ref_lsize;
2850 uint64_t zdde_ref_psize;
2851 uint64_t zdde_ref_dsize;
2852 avl_node_t zdde_node;
2853 } zdb_ddt_entry_t;
2854
2855 /* ARGSUSED */
2856 static int
2857 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
2858 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
2859 {
2860 avl_tree_t *t = arg;
2861 avl_index_t where;
2862 zdb_ddt_entry_t *zdde, zdde_search;
2863
2864 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
2865 return (0);
2866
2867 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
2868 (void) printf("traversing objset %llu, %llu objects, "
2869 "%lu blocks so far\n",
2870 (u_longlong_t)zb->zb_objset,
2871 (u_longlong_t)BP_GET_FILL(bp),
2872 avl_numnodes(t));
2873 }
2874
2875 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
2876 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
2877 return (0);
2878
2879 ddt_key_fill(&zdde_search.zdde_key, bp);
2880
2881 zdde = avl_find(t, &zdde_search, &where);
2882
2883 if (zdde == NULL) {
2884 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
2885 zdde->zdde_key = zdde_search.zdde_key;
2886 avl_insert(t, zdde, where);
2887 }
2888
2889 zdde->zdde_ref_blocks += 1;
2890 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
2891 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
2892 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
2893
2894 return (0);
2895 }
2896
2897 static void
2898 dump_simulated_ddt(spa_t *spa)
2899 {
2900 avl_tree_t t;
2901 void *cookie = NULL;
2902 zdb_ddt_entry_t *zdde;
2903 ddt_histogram_t ddh_total;
2904 ddt_stat_t dds_total;
2905
2906 bzero(&ddh_total, sizeof (ddt_histogram_t));
2907 bzero(&dds_total, sizeof (ddt_stat_t));
2908
2909 avl_create(&t, ddt_entry_compare,
2910 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
2911
2912 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
2913
2914 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA,
2915 zdb_ddt_add_cb, &t);
2916
2917 spa_config_exit(spa, SCL_CONFIG, FTAG);
2918
2919 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
2920 ddt_stat_t dds;
2921 uint64_t refcnt = zdde->zdde_ref_blocks;
2922 ASSERT(refcnt != 0);
2923
2924 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
2925 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
2926 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
2927 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
2928
2929 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
2930 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
2931 dds.dds_ref_psize = zdde->zdde_ref_psize;
2932 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
2933
2934 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
2935 &dds, 0);
2936
2937 umem_free(zdde, sizeof (*zdde));
2938 }
2939
2940 avl_destroy(&t);
2941
2942 ddt_histogram_stat(&dds_total, &ddh_total);
2943
2944 (void) printf("Simulated DDT histogram:\n");
2945
2946 zpool_dump_ddt(&dds_total, &ddh_total);
2947
2948 dump_dedup_ratio(&dds_total);
2949 }
2950
2951 static void
2952 dump_zpool(spa_t *spa)
2953 {
2954 dsl_pool_t *dp = spa_get_dsl(spa);
2955 int rc = 0;
2956
2957 if (dump_opt['S']) {
2958 dump_simulated_ddt(spa);
2959 return;
2960 }
2961
2962 if (!dump_opt['e'] && dump_opt['C'] > 1) {
2963 (void) printf("\nCached configuration:\n");
2964 dump_nvlist(spa->spa_config, 8);
2965 }
2966
2967 if (dump_opt['C'])
2968 dump_config(spa);
2969
2970 if (dump_opt['u'])
2971 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
2972
2973 if (dump_opt['D'])
2974 dump_all_ddts(spa);
2975
2976 if (dump_opt['d'] > 2 || dump_opt['m'])
2977 dump_metaslabs(spa);
2978 if (dump_opt['M'])
2979 dump_metaslab_groups(spa);
2980
2981 if (dump_opt['d'] || dump_opt['i']) {
2982 dump_dir(dp->dp_meta_objset);
2983 if (dump_opt['d'] >= 3) {
2984 dump_bpobj(&spa->spa_deferred_bpobj,
2985 "Deferred frees", 0);
2986 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
2987 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj,
2988 "Pool snapshot frees", 0);
2989 }
2990
2991 if (spa_feature_is_active(spa,
2992 SPA_FEATURE_ASYNC_DESTROY)) {
2993 dump_bptree(spa->spa_meta_objset,
2994 spa->spa_dsl_pool->dp_bptree_obj,
2995 "Pool dataset frees");
2996 }
2997 dump_dtl(spa->spa_root_vdev, 0);
2998 }
2999 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
3000 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3001 }
3002 if (dump_opt['b'] || dump_opt['c'])
3003 rc = dump_block_stats(spa);
3004
3005 if (rc == 0)
3006 rc = verify_spacemap_refcounts(spa);
3007
3008 if (dump_opt['s'])
3009 show_pool_stats(spa);
3010
3011 if (dump_opt['h'])
3012 dump_history(spa);
3013
3014 if (rc != 0)
3015 exit(rc);
3016 }
3017
3018 #define ZDB_FLAG_CHECKSUM 0x0001
3019 #define ZDB_FLAG_DECOMPRESS 0x0002
3020 #define ZDB_FLAG_BSWAP 0x0004
3021 #define ZDB_FLAG_GBH 0x0008
3022 #define ZDB_FLAG_INDIRECT 0x0010
3023 #define ZDB_FLAG_PHYS 0x0020
3024 #define ZDB_FLAG_RAW 0x0040
3025 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
3026
3027 int flagbits[256];
3028
3029 static void
3030 zdb_print_blkptr(blkptr_t *bp, int flags)
3031 {
3032 char blkbuf[BP_SPRINTF_LEN];
3033
3034 if (flags & ZDB_FLAG_BSWAP)
3035 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
3036
3037 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3038 (void) printf("%s\n", blkbuf);
3039 }
3040
3041 static void
3042 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
3043 {
3044 int i;
3045
3046 for (i = 0; i < nbps; i++)
3047 zdb_print_blkptr(&bp[i], flags);
3048 }
3049
3050 static void
3051 zdb_dump_gbh(void *buf, int flags)
3052 {
3053 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
3054 }
3055
3056 static void
3057 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
3058 {
3059 if (flags & ZDB_FLAG_BSWAP)
3060 byteswap_uint64_array(buf, size);
3061 VERIFY(write(fileno(stdout), buf, size) == size);
3062 }
3063
3064 static void
3065 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
3066 {
3067 uint64_t *d = (uint64_t *)buf;
3068 int nwords = size / sizeof (uint64_t);
3069 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
3070 int i, j;
3071 char *hdr, *c;
3072
3073
3074 if (do_bswap)
3075 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
3076 else
3077 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
3078
3079 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
3080
3081 for (i = 0; i < nwords; i += 2) {
3082 (void) printf("%06llx: %016llx %016llx ",
3083 (u_longlong_t)(i * sizeof (uint64_t)),
3084 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
3085 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
3086
3087 c = (char *)&d[i];
3088 for (j = 0; j < 2 * sizeof (uint64_t); j++)
3089 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
3090 (void) printf("\n");
3091 }
3092 }
3093
3094 /*
3095 * There are two acceptable formats:
3096 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
3097 * child[.child]* - For example: 0.1.1
3098 *
3099 * The second form can be used to specify arbitrary vdevs anywhere
3100 * in the heirarchy. For example, in a pool with a mirror of
3101 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
3102 */
3103 static vdev_t *
3104 zdb_vdev_lookup(vdev_t *vdev, char *path)
3105 {
3106 char *s, *p, *q;
3107 int i;
3108
3109 if (vdev == NULL)
3110 return (NULL);
3111
3112 /* First, assume the x.x.x.x format */
3113 i = (int)strtoul(path, &s, 10);
3114 if (s == path || (s && *s != '.' && *s != '\0'))
3115 goto name;
3116 if (i < 0 || i >= vdev->vdev_children)
3117 return (NULL);
3118
3119 vdev = vdev->vdev_child[i];
3120 if (*s == '\0')
3121 return (vdev);
3122 return (zdb_vdev_lookup(vdev, s+1));
3123
3124 name:
3125 for (i = 0; i < vdev->vdev_children; i++) {
3126 vdev_t *vc = vdev->vdev_child[i];
3127
3128 if (vc->vdev_path == NULL) {
3129 vc = zdb_vdev_lookup(vc, path);
3130 if (vc == NULL)
3131 continue;
3132 else
3133 return (vc);
3134 }
3135
3136 p = strrchr(vc->vdev_path, '/');
3137 p = p ? p + 1 : vc->vdev_path;
3138 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
3139
3140 if (strcmp(vc->vdev_path, path) == 0)
3141 return (vc);
3142 if (strcmp(p, path) == 0)
3143 return (vc);
3144 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
3145 return (vc);
3146 }
3147
3148 return (NULL);
3149 }
3150
3151 /*
3152 * Read a block from a pool and print it out. The syntax of the
3153 * block descriptor is:
3154 *
3155 * pool:vdev_specifier:offset:size[:flags]
3156 *
3157 * pool - The name of the pool you wish to read from
3158 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
3159 * offset - offset, in hex, in bytes
3160 * size - Amount of data to read, in hex, in bytes
3161 * flags - A string of characters specifying options
3162 * b: Decode a blkptr at given offset within block
3163 * *c: Calculate and display checksums
3164 * d: Decompress data before dumping
3165 * e: Byteswap data before dumping
3166 * g: Display data as a gang block header
3167 * i: Display as an indirect block
3168 * p: Do I/O to physical offset
3169 * r: Dump raw data to stdout
3170 *
3171 * * = not yet implemented
3172 */
3173 static void
3174 zdb_read_block(char *thing, spa_t *spa)
3175 {
3176 blkptr_t blk, *bp = &blk;
3177 dva_t *dva = bp->blk_dva;
3178 int flags = 0;
3179 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
3180 zio_t *zio;
3181 vdev_t *vd;
3182 void *pbuf, *lbuf, *buf;
3183 char *s, *p, *dup, *vdev, *flagstr;
3184 int i, error;
3185
3186 dup = strdup(thing);
3187 s = strtok(dup, ":");
3188 vdev = s ? s : "";
3189 s = strtok(NULL, ":");
3190 offset = strtoull(s ? s : "", NULL, 16);
3191 s = strtok(NULL, ":");
3192 size = strtoull(s ? s : "", NULL, 16);
3193 s = strtok(NULL, ":");
3194 flagstr = s ? s : "";
3195
3196 s = NULL;
3197 if (size == 0)
3198 s = "size must not be zero";
3199 if (!IS_P2ALIGNED(size, DEV_BSIZE))
3200 s = "size must be a multiple of sector size";
3201 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
3202 s = "offset must be a multiple of sector size";
3203 if (s) {
3204 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
3205 free(dup);
3206 return;
3207 }
3208
3209 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
3210 for (i = 0; flagstr[i]; i++) {
3211 int bit = flagbits[(uchar_t)flagstr[i]];
3212
3213 if (bit == 0) {
3214 (void) printf("***Invalid flag: %c\n",
3215 flagstr[i]);
3216 continue;
3217 }
3218 flags |= bit;
3219
3220 /* If it's not something with an argument, keep going */
3221 if ((bit & (ZDB_FLAG_CHECKSUM |
3222 ZDB_FLAG_PRINT_BLKPTR)) == 0)
3223 continue;
3224
3225 p = &flagstr[i + 1];
3226 if (bit == ZDB_FLAG_PRINT_BLKPTR)
3227 blkptr_offset = strtoull(p, &p, 16);
3228 if (*p != ':' && *p != '\0') {
3229 (void) printf("***Invalid flag arg: '%s'\n", s);
3230 free(dup);
3231 return;
3232 }
3233 }
3234 }
3235
3236 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
3237 if (vd == NULL) {
3238 (void) printf("***Invalid vdev: %s\n", vdev);
3239 free(dup);
3240 return;
3241 } else {
3242 if (vd->vdev_path)
3243 (void) fprintf(stderr, "Found vdev: %s\n",
3244 vd->vdev_path);
3245 else
3246 (void) fprintf(stderr, "Found vdev type: %s\n",
3247 vd->vdev_ops->vdev_op_type);
3248 }
3249
3250 psize = size;
3251 lsize = size;
3252
3253 pbuf = umem_alloc_aligned(SPA_MAXBLOCKSIZE, 512, UMEM_NOFAIL);
3254 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3255
3256 BP_ZERO(bp);
3257
3258 DVA_SET_VDEV(&dva[0], vd->vdev_id);
3259 DVA_SET_OFFSET(&dva[0], offset);
3260 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
3261 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
3262
3263 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
3264
3265 BP_SET_LSIZE(bp, lsize);
3266 BP_SET_PSIZE(bp, psize);
3267 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
3268 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
3269 BP_SET_TYPE(bp, DMU_OT_NONE);
3270 BP_SET_LEVEL(bp, 0);
3271 BP_SET_DEDUP(bp, 0);
3272 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
3273
3274 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
3275 zio = zio_root(spa, NULL, NULL, 0);
3276
3277 if (vd == vd->vdev_top) {
3278 /*
3279 * Treat this as a normal block read.
3280 */
3281 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL,
3282 ZIO_PRIORITY_SYNC_READ,
3283 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
3284 } else {
3285 /*
3286 * Treat this as a vdev child I/O.
3287 */
3288 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize,
3289 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
3290 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
3291 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
3292 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL));
3293 }
3294
3295 error = zio_wait(zio);
3296 spa_config_exit(spa, SCL_STATE, FTAG);
3297
3298 if (error) {
3299 (void) printf("Read of %s failed, error: %d\n", thing, error);
3300 goto out;
3301 }
3302
3303 if (flags & ZDB_FLAG_DECOMPRESS) {
3304 /*
3305 * We don't know how the data was compressed, so just try
3306 * every decompress function at every inflated blocksize.
3307 */
3308 enum zio_compress c;
3309 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3310 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
3311
3312 bcopy(pbuf, pbuf2, psize);
3313
3314 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize,
3315 SPA_MAXBLOCKSIZE - psize) == 0);
3316
3317 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize,
3318 SPA_MAXBLOCKSIZE - psize) == 0);
3319
3320 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize;
3321 lsize -= SPA_MINBLOCKSIZE) {
3322 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
3323 if (zio_decompress_data(c, pbuf, lbuf,
3324 psize, lsize) == 0 &&
3325 zio_decompress_data(c, pbuf2, lbuf2,
3326 psize, lsize) == 0 &&
3327 bcmp(lbuf, lbuf2, lsize) == 0)
3328 break;
3329 }
3330 if (c != ZIO_COMPRESS_FUNCTIONS)
3331 break;
3332 lsize -= SPA_MINBLOCKSIZE;
3333 }
3334
3335 umem_free(pbuf2, SPA_MAXBLOCKSIZE);
3336 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
3337
3338 if (lsize <= psize) {
3339 (void) printf("Decompress of %s failed\n", thing);
3340 goto out;
3341 }
3342 buf = lbuf;
3343 size = lsize;
3344 } else {
3345 buf = pbuf;
3346 size = psize;
3347 }
3348
3349 if (flags & ZDB_FLAG_PRINT_BLKPTR)
3350 zdb_print_blkptr((blkptr_t *)(void *)
3351 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
3352 else if (flags & ZDB_FLAG_RAW)
3353 zdb_dump_block_raw(buf, size, flags);
3354 else if (flags & ZDB_FLAG_INDIRECT)
3355 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
3356 flags);
3357 else if (flags & ZDB_FLAG_GBH)
3358 zdb_dump_gbh(buf, flags);
3359 else
3360 zdb_dump_block(thing, buf, size, flags);
3361
3362 out:
3363 umem_free(pbuf, SPA_MAXBLOCKSIZE);
3364 umem_free(lbuf, SPA_MAXBLOCKSIZE);
3365 free(dup);
3366 }
3367
3368 static boolean_t
3369 pool_match(nvlist_t *cfg, char *tgt)
3370 {
3371 uint64_t v, guid = strtoull(tgt, NULL, 0);
3372 char *s;
3373
3374 if (guid != 0) {
3375 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0)
3376 return (v == guid);
3377 } else {
3378 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0)
3379 return (strcmp(s, tgt) == 0);
3380 }
3381 return (B_FALSE);
3382 }
3383
3384 static char *
3385 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv)
3386 {
3387 nvlist_t *pools;
3388 nvlist_t *match = NULL;
3389 char *name = NULL;
3390 char *sepp = NULL;
3391 char sep = 0;
3392 int count = 0;
3393 importargs_t args = { 0 };
3394
3395 args.paths = dirc;
3396 args.path = dirv;
3397 args.can_be_active = B_TRUE;
3398
3399 if ((sepp = strpbrk(*target, "/@")) != NULL) {
3400 sep = *sepp;
3401 *sepp = '\0';
3402 }
3403
3404 pools = zpool_search_import(g_zfs, &args);
3405
3406 if (pools != NULL) {
3407 nvpair_t *elem = NULL;
3408 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) {
3409 verify(nvpair_value_nvlist(elem, configp) == 0);
3410 if (pool_match(*configp, *target)) {
3411 count++;
3412 if (match != NULL) {
3413 /* print previously found config */
3414 if (name != NULL) {
3415 (void) printf("%s\n", name);
3416 dump_nvlist(match, 8);
3417 name = NULL;
3418 }
3419 (void) printf("%s\n",
3420 nvpair_name(elem));
3421 dump_nvlist(*configp, 8);
3422 } else {
3423 match = *configp;
3424 name = nvpair_name(elem);
3425 }
3426 }
3427 }
3428 }
3429 if (count > 1)
3430 (void) fatal("\tMatched %d pools - use pool GUID "
3431 "instead of pool name or \n"
3432 "\tpool name part of a dataset name to select pool", count);
3433
3434 if (sepp)
3435 *sepp = sep;
3436 /*
3437 * If pool GUID was specified for pool id, replace it with pool name
3438 */
3439 if (name && (strstr(*target, name) != *target)) {
3440 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0);
3441
3442 *target = umem_alloc(sz, UMEM_NOFAIL);
3443 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : "");
3444 }
3445
3446 *configp = name ? match : NULL;
3447
3448 return (name);
3449 }
3450
3451 int
3452 main(int argc, char **argv)
3453 {
3454 int i, c;
3455 struct rlimit rl = { 1024, 1024 };
3456 spa_t *spa = NULL;
3457 objset_t *os = NULL;
3458 int dump_all = 1;
3459 int verbose = 0;
3460 int error = 0;
3461 char **searchdirs = NULL;
3462 int nsearch = 0;
3463 char *target;
3464 nvlist_t *policy = NULL;
3465 uint64_t max_txg = UINT64_MAX;
3466 int flags = ZFS_IMPORT_MISSING_LOG;
3467 int rewind = ZPOOL_NEVER_REWIND;
3468 char *spa_config_path_env;
3469 const char *opts = "bcdhilmMI:suCDRSAFLXevp:t:U:P";
3470
3471 (void) setrlimit(RLIMIT_NOFILE, &rl);
3472 (void) enable_extended_FILE_stdio(-1, -1);
3473
3474 dprintf_setup(&argc, argv);
3475
3476 /*
3477 * If there is an environment variable SPA_CONFIG_PATH it overrides
3478 * default spa_config_path setting. If -U flag is specified it will
3479 * override this environment variable settings once again.
3480 */
3481 spa_config_path_env = getenv("SPA_CONFIG_PATH");
3482 if (spa_config_path_env != NULL)
3483 spa_config_path = spa_config_path_env;
3484
3485 while ((c = getopt(argc, argv, opts)) != -1) {
3486 switch (c) {
3487 case 'b':
3488 case 'c':
3489 case 'd':
3490 case 'h':
3491 case 'i':
3492 case 'l':
3493 case 'm':
3494 case 's':
3495 case 'u':
3496 case 'C':
3497 case 'D':
3498 case 'M':
3499 case 'R':
3500 case 'S':
3501 dump_opt[c]++;
3502 dump_all = 0;
3503 break;
3504 case 'A':
3505 case 'F':
3506 case 'L':
3507 case 'X':
3508 case 'e':
3509 case 'P':
3510 dump_opt[c]++;
3511 break;
3512 case 'V':
3513 flags = ZFS_IMPORT_VERBATIM;
3514 break;
3515 case 'I':
3516 max_inflight = strtoull(optarg, NULL, 0);
3517 if (max_inflight == 0) {
3518 (void) fprintf(stderr, "maximum number "
3519 "of inflight I/Os must be greater "
3520 "than 0\n");
3521 usage();
3522 }
3523 break;
3524 case 'p':
3525 if (searchdirs == NULL) {
3526 searchdirs = umem_alloc(sizeof (char *),
3527 UMEM_NOFAIL);
3528 } else {
3529 char **tmp = umem_alloc((nsearch + 1) *
3530 sizeof (char *), UMEM_NOFAIL);
3531 bcopy(searchdirs, tmp, nsearch *
3532 sizeof (char *));
3533 umem_free(searchdirs,
3534 nsearch * sizeof (char *));
3535 searchdirs = tmp;
3536 }
3537 searchdirs[nsearch++] = optarg;
3538 break;
3539 case 't':
3540 max_txg = strtoull(optarg, NULL, 0);
3541 if (max_txg < TXG_INITIAL) {
3542 (void) fprintf(stderr, "incorrect txg "
3543 "specified: %s\n", optarg);
3544 usage();
3545 }
3546 break;
3547 case 'U':
3548 spa_config_path = optarg;
3549 break;
3550 case 'v':
3551 verbose++;
3552 break;
3553 default:
3554 usage();
3555 break;
3556 }
3557 }
3558
3559 if (!dump_opt['e'] && searchdirs != NULL) {
3560 (void) fprintf(stderr, "-p option requires use of -e\n");
3561 usage();
3562 }
3563
3564 #if defined(_LP64)
3565 /*
3566 * ZDB does not typically re-read blocks; therefore limit the ARC
3567 * to 256 MB, which can be used entirely for metadata.
3568 */
3569 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
3570 #endif
3571
3572 kernel_init(FREAD);
3573 if ((g_zfs = libzfs_init()) == NULL)
3574 return (1);
3575
3576 if (dump_all)
3577 verbose = MAX(verbose, 1);
3578
3579 for (c = 0; c < 256; c++) {
3580 if (dump_all && !strchr("elAFLRSXP", c))
3581 dump_opt[c] = 1;
3582 if (dump_opt[c])
3583 dump_opt[c] += verbose;
3584 }
3585
3586 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
3587 zfs_recover = (dump_opt['A'] > 1);
3588
3589 argc -= optind;
3590 argv += optind;
3591
3592 if (argc < 2 && dump_opt['R'])
3593 usage();
3594 if (argc < 1) {
3595 if (!dump_opt['e'] && dump_opt['C']) {
3596 dump_cachefile(spa_config_path);
3597 return (0);
3598 }
3599 usage();
3600 }
3601
3602 if (dump_opt['l']) {
3603 dump_label(argv[0]);
3604 return (0);
3605 }
3606
3607 if (dump_opt['X'] || dump_opt['F'])
3608 rewind = ZPOOL_DO_REWIND |
3609 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
3610
3611 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
3612 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
3613 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
3614 fatal("internal error: %s", strerror(ENOMEM));
3615
3616 error = 0;
3617 target = argv[0];
3618
3619 if (dump_opt['e']) {
3620 nvlist_t *cfg = NULL;
3621 char *name = find_zpool(&target, &cfg, nsearch, searchdirs);
3622
3623 error = ENOENT;
3624 if (name) {
3625 if (dump_opt['C'] > 1) {
3626 (void) printf("\nConfiguration for import:\n");
3627 dump_nvlist(cfg, 8);
3628 }
3629 if (nvlist_add_nvlist(cfg,
3630 ZPOOL_REWIND_POLICY, policy) != 0) {
3631 fatal("can't open '%s': %s",
3632 target, strerror(ENOMEM));
3633 }
3634 error = spa_import(name, cfg, NULL, flags);
3635 }
3636 }
3637
3638 if (error == 0) {
3639 if (strpbrk(target, "/@") == NULL || dump_opt['R']) {
3640 error = spa_open_rewind(target, &spa, FTAG, policy,
3641 NULL);
3642 if (error) {
3643 /*
3644 * If we're missing the log device then
3645 * try opening the pool after clearing the
3646 * log state.
3647 */
3648 mutex_enter(&spa_namespace_lock);
3649 if ((spa = spa_lookup(target)) != NULL &&
3650 spa->spa_log_state == SPA_LOG_MISSING) {
3651 spa->spa_log_state = SPA_LOG_CLEAR;
3652 error = 0;
3653 }
3654 mutex_exit(&spa_namespace_lock);
3655
3656 if (!error) {
3657 error = spa_open_rewind(target, &spa,
3658 FTAG, policy, NULL);
3659 }
3660 }
3661 } else {
3662 error = dmu_objset_own(target, DMU_OST_ANY,
3663 B_TRUE, FTAG, &os);
3664 }
3665 }
3666 nvlist_free(policy);
3667
3668 if (error)
3669 fatal("can't open '%s': %s", target, strerror(error));
3670
3671 argv++;
3672 argc--;
3673 if (!dump_opt['R']) {
3674 if (argc > 0) {
3675 zopt_objects = argc;
3676 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
3677 for (i = 0; i < zopt_objects; i++) {
3678 errno = 0;
3679 zopt_object[i] = strtoull(argv[i], NULL, 0);
3680 if (zopt_object[i] == 0 && errno != 0)
3681 fatal("bad number %s: %s",
3682 argv[i], strerror(errno));
3683 }
3684 }
3685 if (os != NULL) {
3686 dump_dir(os);
3687 } else if (zopt_objects > 0 && !dump_opt['m']) {
3688 dump_dir(spa->spa_meta_objset);
3689 } else {
3690 dump_zpool(spa);
3691 }
3692 } else {
3693 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
3694 flagbits['c'] = ZDB_FLAG_CHECKSUM;
3695 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
3696 flagbits['e'] = ZDB_FLAG_BSWAP;
3697 flagbits['g'] = ZDB_FLAG_GBH;
3698 flagbits['i'] = ZDB_FLAG_INDIRECT;
3699 flagbits['p'] = ZDB_FLAG_PHYS;
3700 flagbits['r'] = ZDB_FLAG_RAW;
3701
3702 for (i = 0; i < argc; i++)
3703 zdb_read_block(argv[i], spa);
3704 }
3705
3706 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG);
3707
3708 fuid_table_destroy();
3709 sa_loaded = B_FALSE;
3710
3711 libzfs_fini(g_zfs);
3712 kernel_fini();
3713
3714 return (0);
3715 }
ZFS On Linux mirror for PVE