]> 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
Merge branch 'zfsonlinux/merge-spl'
[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, 2017 by Delphix. All rights reserved.
25 * Copyright (c) 2014 Integros [integros.com]
26 * Copyright 2016 Nexenta Systems, Inc.
27 * Copyright (c) 2017 Lawrence Livermore National Security, LLC.
28 * Copyright (c) 2015, 2017, Intel Corporation.
29 */
30
31 #include <stdio.h>
32 #include <unistd.h>
33 #include <stdio_ext.h>
34 #include <stdlib.h>
35 #include <ctype.h>
36 #include <sys/zfs_context.h>
37 #include <sys/spa.h>
38 #include <sys/spa_impl.h>
39 #include <sys/dmu.h>
40 #include <sys/zap.h>
41 #include <sys/fs/zfs.h>
42 #include <sys/zfs_znode.h>
43 #include <sys/zfs_sa.h>
44 #include <sys/sa.h>
45 #include <sys/sa_impl.h>
46 #include <sys/vdev.h>
47 #include <sys/vdev_impl.h>
48 #include <sys/metaslab_impl.h>
49 #include <sys/dmu_objset.h>
50 #include <sys/dsl_dir.h>
51 #include <sys/dsl_dataset.h>
52 #include <sys/dsl_pool.h>
53 #include <sys/dbuf.h>
54 #include <sys/zil.h>
55 #include <sys/zil_impl.h>
56 #include <sys/stat.h>
57 #include <sys/resource.h>
58 #include <sys/dmu_traverse.h>
59 #include <sys/zio_checksum.h>
60 #include <sys/zio_compress.h>
61 #include <sys/zfs_fuid.h>
62 #include <sys/arc.h>
63 #include <sys/ddt.h>
64 #include <sys/zfeature.h>
65 #include <sys/abd.h>
66 #include <sys/blkptr.h>
67 #include <sys/dsl_crypt.h>
68 #include <zfs_comutil.h>
69 #include <libzfs.h>
70
71 #include "zdb.h"
72
73 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \
74 zio_compress_table[(idx)].ci_name : "UNKNOWN")
75 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \
76 zio_checksum_table[(idx)].ci_name : "UNKNOWN")
77 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \
78 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \
79 DMU_OT_ZAP_OTHER : \
80 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \
81 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES)
82
83 static char *
84 zdb_ot_name(dmu_object_type_t type)
85 {
86 if (type < DMU_OT_NUMTYPES)
87 return (dmu_ot[type].ot_name);
88 else if ((type & DMU_OT_NEWTYPE) &&
89 ((type & DMU_OT_BYTESWAP_MASK) < DMU_BSWAP_NUMFUNCS))
90 return (dmu_ot_byteswap[type & DMU_OT_BYTESWAP_MASK].ob_name);
91 else
92 return ("UNKNOWN");
93 }
94
95 extern int reference_tracking_enable;
96 extern int zfs_recover;
97 extern uint64_t zfs_arc_max, zfs_arc_meta_limit;
98 extern int zfs_vdev_async_read_max_active;
99 extern boolean_t spa_load_verify_dryrun;
100
101 static const char cmdname[] = "zdb";
102 uint8_t dump_opt[256];
103
104 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size);
105
106 uint64_t *zopt_object = NULL;
107 static unsigned zopt_objects = 0;
108 libzfs_handle_t *g_zfs;
109 uint64_t max_inflight = 1000;
110 static int leaked_objects = 0;
111
112 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *);
113
114 /*
115 * These libumem hooks provide a reasonable set of defaults for the allocator's
116 * debugging facilities.
117 */
118 const char *
119 _umem_debug_init(void)
120 {
121 return ("default,verbose"); /* $UMEM_DEBUG setting */
122 }
123
124 const char *
125 _umem_logging_init(void)
126 {
127 return ("fail,contents"); /* $UMEM_LOGGING setting */
128 }
129
130 static void
131 usage(void)
132 {
133 (void) fprintf(stderr,
134 "Usage:\t%s [-AbcdDFGhiLMPsvX] [-e [-V] [-p <path> ...]] "
135 "[-I <inflight I/Os>]\n"
136 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n"
137 "\t\t[<poolname> [<object> ...]]\n"
138 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset>\n"
139 "\t\t[<object> ...]\n"
140 "\t%s -C [-A] [-U <cache>]\n"
141 "\t%s -l [-Aqu] <device>\n"
142 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] "
143 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n"
144 "\t%s -O <dataset> <path>\n"
145 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n"
146 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n"
147 "\t%s -E [-A] word0:word1:...:word15\n"
148 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] "
149 "<poolname>\n\n",
150 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname,
151 cmdname, cmdname);
152
153 (void) fprintf(stderr, " Dataset name must include at least one "
154 "separator character '/' or '@'\n");
155 (void) fprintf(stderr, " If dataset name is specified, only that "
156 "dataset is dumped\n");
157 (void) fprintf(stderr, " If object numbers are specified, only "
158 "those objects are dumped\n\n");
159 (void) fprintf(stderr, " Options to control amount of output:\n");
160 (void) fprintf(stderr, " -b block statistics\n");
161 (void) fprintf(stderr, " -c checksum all metadata (twice for "
162 "all data) blocks\n");
163 (void) fprintf(stderr, " -C config (or cachefile if alone)\n");
164 (void) fprintf(stderr, " -d dataset(s)\n");
165 (void) fprintf(stderr, " -D dedup statistics\n");
166 (void) fprintf(stderr, " -E decode and display block from an "
167 "embedded block pointer\n");
168 (void) fprintf(stderr, " -h pool history\n");
169 (void) fprintf(stderr, " -i intent logs\n");
170 (void) fprintf(stderr, " -l read label contents\n");
171 (void) fprintf(stderr, " -L disable leak tracking (do not "
172 "load spacemaps)\n");
173 (void) fprintf(stderr, " -m metaslabs\n");
174 (void) fprintf(stderr, " -M metaslab groups\n");
175 (void) fprintf(stderr, " -O perform object lookups by path\n");
176 (void) fprintf(stderr, " -R read and display block from a "
177 "device\n");
178 (void) fprintf(stderr, " -s report stats on zdb's I/O\n");
179 (void) fprintf(stderr, " -S simulate dedup to measure effect\n");
180 (void) fprintf(stderr, " -v verbose (applies to all "
181 "others)\n\n");
182 (void) fprintf(stderr, " Below options are intended for use "
183 "with other options:\n");
184 (void) fprintf(stderr, " -A ignore assertions (-A), enable "
185 "panic recovery (-AA) or both (-AAA)\n");
186 (void) fprintf(stderr, " -e pool is exported/destroyed/"
187 "has altroot/not in a cachefile\n");
188 (void) fprintf(stderr, " -F attempt automatic rewind within "
189 "safe range of transaction groups\n");
190 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before "
191 "exiting\n");
192 (void) fprintf(stderr, " -I <number of inflight I/Os> -- "
193 "specify the maximum number of\n "
194 "checksumming I/Os [default is 200]\n");
195 (void) fprintf(stderr, " -o <variable>=<value> set global "
196 "variable to an unsigned 32-bit integer\n");
197 (void) fprintf(stderr, " -p <path> -- use one or more with "
198 "-e to specify path to vdev dir\n");
199 (void) fprintf(stderr, " -P print numbers in parseable form\n");
200 (void) fprintf(stderr, " -q don't print label contents\n");
201 (void) fprintf(stderr, " -t <txg> -- highest txg to use when "
202 "searching for uberblocks\n");
203 (void) fprintf(stderr, " -u uberblock\n");
204 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate "
205 "cachefile\n");
206 (void) fprintf(stderr, " -V do verbatim import\n");
207 (void) fprintf(stderr, " -x <dumpdir> -- "
208 "dump all read blocks into specified directory\n");
209 (void) fprintf(stderr, " -X attempt extreme rewind (does not "
210 "work with dataset)\n");
211 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) "
212 "to make only that option verbose\n");
213 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n");
214 exit(1);
215 }
216
217 static void
218 dump_debug_buffer(void)
219 {
220 if (dump_opt['G']) {
221 (void) printf("\n");
222 zfs_dbgmsg_print("zdb");
223 }
224 }
225
226 /*
227 * Called for usage errors that are discovered after a call to spa_open(),
228 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors.
229 */
230
231 static void
232 fatal(const char *fmt, ...)
233 {
234 va_list ap;
235
236 va_start(ap, fmt);
237 (void) fprintf(stderr, "%s: ", cmdname);
238 (void) vfprintf(stderr, fmt, ap);
239 va_end(ap);
240 (void) fprintf(stderr, "\n");
241
242 dump_debug_buffer();
243
244 exit(1);
245 }
246
247 /* ARGSUSED */
248 static void
249 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size)
250 {
251 nvlist_t *nv;
252 size_t nvsize = *(uint64_t *)data;
253 char *packed = umem_alloc(nvsize, UMEM_NOFAIL);
254
255 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH));
256
257 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0);
258
259 umem_free(packed, nvsize);
260
261 dump_nvlist(nv, 8);
262
263 nvlist_free(nv);
264 }
265
266 /* ARGSUSED */
267 static void
268 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size)
269 {
270 spa_history_phys_t *shp = data;
271
272 if (shp == NULL)
273 return;
274
275 (void) printf("\t\tpool_create_len = %llu\n",
276 (u_longlong_t)shp->sh_pool_create_len);
277 (void) printf("\t\tphys_max_off = %llu\n",
278 (u_longlong_t)shp->sh_phys_max_off);
279 (void) printf("\t\tbof = %llu\n",
280 (u_longlong_t)shp->sh_bof);
281 (void) printf("\t\teof = %llu\n",
282 (u_longlong_t)shp->sh_eof);
283 (void) printf("\t\trecords_lost = %llu\n",
284 (u_longlong_t)shp->sh_records_lost);
285 }
286
287 static void
288 zdb_nicenum(uint64_t num, char *buf, size_t buflen)
289 {
290 if (dump_opt['P'])
291 (void) snprintf(buf, buflen, "%llu", (longlong_t)num);
292 else
293 nicenum(num, buf, sizeof (buf));
294 }
295
296 static const char histo_stars[] = "****************************************";
297 static const uint64_t histo_width = sizeof (histo_stars) - 1;
298
299 static void
300 dump_histogram(const uint64_t *histo, int size, int offset)
301 {
302 int i;
303 int minidx = size - 1;
304 int maxidx = 0;
305 uint64_t max = 0;
306
307 for (i = 0; i < size; i++) {
308 if (histo[i] > max)
309 max = histo[i];
310 if (histo[i] > 0 && i > maxidx)
311 maxidx = i;
312 if (histo[i] > 0 && i < minidx)
313 minidx = i;
314 }
315
316 if (max < histo_width)
317 max = histo_width;
318
319 for (i = minidx; i <= maxidx; i++) {
320 (void) printf("\t\t\t%3u: %6llu %s\n",
321 i + offset, (u_longlong_t)histo[i],
322 &histo_stars[(max - histo[i]) * histo_width / max]);
323 }
324 }
325
326 static void
327 dump_zap_stats(objset_t *os, uint64_t object)
328 {
329 int error;
330 zap_stats_t zs;
331
332 error = zap_get_stats(os, object, &zs);
333 if (error)
334 return;
335
336 if (zs.zs_ptrtbl_len == 0) {
337 ASSERT(zs.zs_num_blocks == 1);
338 (void) printf("\tmicrozap: %llu bytes, %llu entries\n",
339 (u_longlong_t)zs.zs_blocksize,
340 (u_longlong_t)zs.zs_num_entries);
341 return;
342 }
343
344 (void) printf("\tFat ZAP stats:\n");
345
346 (void) printf("\t\tPointer table:\n");
347 (void) printf("\t\t\t%llu elements\n",
348 (u_longlong_t)zs.zs_ptrtbl_len);
349 (void) printf("\t\t\tzt_blk: %llu\n",
350 (u_longlong_t)zs.zs_ptrtbl_zt_blk);
351 (void) printf("\t\t\tzt_numblks: %llu\n",
352 (u_longlong_t)zs.zs_ptrtbl_zt_numblks);
353 (void) printf("\t\t\tzt_shift: %llu\n",
354 (u_longlong_t)zs.zs_ptrtbl_zt_shift);
355 (void) printf("\t\t\tzt_blks_copied: %llu\n",
356 (u_longlong_t)zs.zs_ptrtbl_blks_copied);
357 (void) printf("\t\t\tzt_nextblk: %llu\n",
358 (u_longlong_t)zs.zs_ptrtbl_nextblk);
359
360 (void) printf("\t\tZAP entries: %llu\n",
361 (u_longlong_t)zs.zs_num_entries);
362 (void) printf("\t\tLeaf blocks: %llu\n",
363 (u_longlong_t)zs.zs_num_leafs);
364 (void) printf("\t\tTotal blocks: %llu\n",
365 (u_longlong_t)zs.zs_num_blocks);
366 (void) printf("\t\tzap_block_type: 0x%llx\n",
367 (u_longlong_t)zs.zs_block_type);
368 (void) printf("\t\tzap_magic: 0x%llx\n",
369 (u_longlong_t)zs.zs_magic);
370 (void) printf("\t\tzap_salt: 0x%llx\n",
371 (u_longlong_t)zs.zs_salt);
372
373 (void) printf("\t\tLeafs with 2^n pointers:\n");
374 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0);
375
376 (void) printf("\t\tBlocks with n*5 entries:\n");
377 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0);
378
379 (void) printf("\t\tBlocks n/10 full:\n");
380 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0);
381
382 (void) printf("\t\tEntries with n chunks:\n");
383 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0);
384
385 (void) printf("\t\tBuckets with n entries:\n");
386 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0);
387 }
388
389 /*ARGSUSED*/
390 static void
391 dump_none(objset_t *os, uint64_t object, void *data, size_t size)
392 {
393 }
394
395 /*ARGSUSED*/
396 static void
397 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size)
398 {
399 (void) printf("\tUNKNOWN OBJECT TYPE\n");
400 }
401
402 /*ARGSUSED*/
403 static void
404 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size)
405 {
406 }
407
408 /*ARGSUSED*/
409 static void
410 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size)
411 {
412 }
413
414 /*ARGSUSED*/
415 static void
416 dump_zap(objset_t *os, uint64_t object, void *data, size_t size)
417 {
418 zap_cursor_t zc;
419 zap_attribute_t attr;
420 void *prop;
421 unsigned i;
422
423 dump_zap_stats(os, object);
424 (void) printf("\n");
425
426 for (zap_cursor_init(&zc, os, object);
427 zap_cursor_retrieve(&zc, &attr) == 0;
428 zap_cursor_advance(&zc)) {
429 (void) printf("\t\t%s = ", attr.za_name);
430 if (attr.za_num_integers == 0) {
431 (void) printf("\n");
432 continue;
433 }
434 prop = umem_zalloc(attr.za_num_integers *
435 attr.za_integer_length, UMEM_NOFAIL);
436 (void) zap_lookup(os, object, attr.za_name,
437 attr.za_integer_length, attr.za_num_integers, prop);
438 if (attr.za_integer_length == 1) {
439 (void) printf("%s", (char *)prop);
440 } else {
441 for (i = 0; i < attr.za_num_integers; i++) {
442 switch (attr.za_integer_length) {
443 case 2:
444 (void) printf("%u ",
445 ((uint16_t *)prop)[i]);
446 break;
447 case 4:
448 (void) printf("%u ",
449 ((uint32_t *)prop)[i]);
450 break;
451 case 8:
452 (void) printf("%lld ",
453 (u_longlong_t)((int64_t *)prop)[i]);
454 break;
455 }
456 }
457 }
458 (void) printf("\n");
459 umem_free(prop, attr.za_num_integers * attr.za_integer_length);
460 }
461 zap_cursor_fini(&zc);
462 }
463
464 static void
465 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size)
466 {
467 bpobj_phys_t *bpop = data;
468 uint64_t i;
469 char bytes[32], comp[32], uncomp[32];
470
471 /* make sure the output won't get truncated */
472 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
473 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
474 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
475
476 if (bpop == NULL)
477 return;
478
479 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes));
480 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp));
481 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp));
482
483 (void) printf("\t\tnum_blkptrs = %llu\n",
484 (u_longlong_t)bpop->bpo_num_blkptrs);
485 (void) printf("\t\tbytes = %s\n", bytes);
486 if (size >= BPOBJ_SIZE_V1) {
487 (void) printf("\t\tcomp = %s\n", comp);
488 (void) printf("\t\tuncomp = %s\n", uncomp);
489 }
490 if (size >= sizeof (*bpop)) {
491 (void) printf("\t\tsubobjs = %llu\n",
492 (u_longlong_t)bpop->bpo_subobjs);
493 (void) printf("\t\tnum_subobjs = %llu\n",
494 (u_longlong_t)bpop->bpo_num_subobjs);
495 }
496
497 if (dump_opt['d'] < 5)
498 return;
499
500 for (i = 0; i < bpop->bpo_num_blkptrs; i++) {
501 char blkbuf[BP_SPRINTF_LEN];
502 blkptr_t bp;
503
504 int err = dmu_read(os, object,
505 i * sizeof (bp), sizeof (bp), &bp, 0);
506 if (err != 0) {
507 (void) printf("got error %u from dmu_read\n", err);
508 break;
509 }
510 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp);
511 (void) printf("\t%s\n", blkbuf);
512 }
513 }
514
515 /* ARGSUSED */
516 static void
517 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size)
518 {
519 dmu_object_info_t doi;
520 int64_t i;
521
522 VERIFY0(dmu_object_info(os, object, &doi));
523 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP);
524
525 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0);
526 if (err != 0) {
527 (void) printf("got error %u from dmu_read\n", err);
528 kmem_free(subobjs, doi.doi_max_offset);
529 return;
530 }
531
532 int64_t last_nonzero = -1;
533 for (i = 0; i < doi.doi_max_offset / 8; i++) {
534 if (subobjs[i] != 0)
535 last_nonzero = i;
536 }
537
538 for (i = 0; i <= last_nonzero; i++) {
539 (void) printf("\t%llu\n", (u_longlong_t)subobjs[i]);
540 }
541 kmem_free(subobjs, doi.doi_max_offset);
542 }
543
544 /*ARGSUSED*/
545 static void
546 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size)
547 {
548 dump_zap_stats(os, object);
549 /* contents are printed elsewhere, properly decoded */
550 }
551
552 /*ARGSUSED*/
553 static void
554 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size)
555 {
556 zap_cursor_t zc;
557 zap_attribute_t attr;
558
559 dump_zap_stats(os, object);
560 (void) printf("\n");
561
562 for (zap_cursor_init(&zc, os, object);
563 zap_cursor_retrieve(&zc, &attr) == 0;
564 zap_cursor_advance(&zc)) {
565 (void) printf("\t\t%s = ", attr.za_name);
566 if (attr.za_num_integers == 0) {
567 (void) printf("\n");
568 continue;
569 }
570 (void) printf(" %llx : [%d:%d:%d]\n",
571 (u_longlong_t)attr.za_first_integer,
572 (int)ATTR_LENGTH(attr.za_first_integer),
573 (int)ATTR_BSWAP(attr.za_first_integer),
574 (int)ATTR_NUM(attr.za_first_integer));
575 }
576 zap_cursor_fini(&zc);
577 }
578
579 /*ARGSUSED*/
580 static void
581 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size)
582 {
583 zap_cursor_t zc;
584 zap_attribute_t attr;
585 uint16_t *layout_attrs;
586 unsigned i;
587
588 dump_zap_stats(os, object);
589 (void) printf("\n");
590
591 for (zap_cursor_init(&zc, os, object);
592 zap_cursor_retrieve(&zc, &attr) == 0;
593 zap_cursor_advance(&zc)) {
594 (void) printf("\t\t%s = [", attr.za_name);
595 if (attr.za_num_integers == 0) {
596 (void) printf("\n");
597 continue;
598 }
599
600 VERIFY(attr.za_integer_length == 2);
601 layout_attrs = umem_zalloc(attr.za_num_integers *
602 attr.za_integer_length, UMEM_NOFAIL);
603
604 VERIFY(zap_lookup(os, object, attr.za_name,
605 attr.za_integer_length,
606 attr.za_num_integers, layout_attrs) == 0);
607
608 for (i = 0; i != attr.za_num_integers; i++)
609 (void) printf(" %d ", (int)layout_attrs[i]);
610 (void) printf("]\n");
611 umem_free(layout_attrs,
612 attr.za_num_integers * attr.za_integer_length);
613 }
614 zap_cursor_fini(&zc);
615 }
616
617 /*ARGSUSED*/
618 static void
619 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size)
620 {
621 zap_cursor_t zc;
622 zap_attribute_t attr;
623 const char *typenames[] = {
624 /* 0 */ "not specified",
625 /* 1 */ "FIFO",
626 /* 2 */ "Character Device",
627 /* 3 */ "3 (invalid)",
628 /* 4 */ "Directory",
629 /* 5 */ "5 (invalid)",
630 /* 6 */ "Block Device",
631 /* 7 */ "7 (invalid)",
632 /* 8 */ "Regular File",
633 /* 9 */ "9 (invalid)",
634 /* 10 */ "Symbolic Link",
635 /* 11 */ "11 (invalid)",
636 /* 12 */ "Socket",
637 /* 13 */ "Door",
638 /* 14 */ "Event Port",
639 /* 15 */ "15 (invalid)",
640 };
641
642 dump_zap_stats(os, object);
643 (void) printf("\n");
644
645 for (zap_cursor_init(&zc, os, object);
646 zap_cursor_retrieve(&zc, &attr) == 0;
647 zap_cursor_advance(&zc)) {
648 (void) printf("\t\t%s = %lld (type: %s)\n",
649 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer),
650 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]);
651 }
652 zap_cursor_fini(&zc);
653 }
654
655 static int
656 get_dtl_refcount(vdev_t *vd)
657 {
658 int refcount = 0;
659
660 if (vd->vdev_ops->vdev_op_leaf) {
661 space_map_t *sm = vd->vdev_dtl_sm;
662
663 if (sm != NULL &&
664 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
665 return (1);
666 return (0);
667 }
668
669 for (unsigned c = 0; c < vd->vdev_children; c++)
670 refcount += get_dtl_refcount(vd->vdev_child[c]);
671 return (refcount);
672 }
673
674 static int
675 get_metaslab_refcount(vdev_t *vd)
676 {
677 int refcount = 0;
678
679 if (vd->vdev_top == vd) {
680 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
681 space_map_t *sm = vd->vdev_ms[m]->ms_sm;
682
683 if (sm != NULL &&
684 sm->sm_dbuf->db_size == sizeof (space_map_phys_t))
685 refcount++;
686 }
687 }
688 for (unsigned c = 0; c < vd->vdev_children; c++)
689 refcount += get_metaslab_refcount(vd->vdev_child[c]);
690
691 return (refcount);
692 }
693
694 static int
695 get_obsolete_refcount(vdev_t *vd)
696 {
697 int refcount = 0;
698
699 uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd);
700 if (vd->vdev_top == vd && obsolete_sm_obj != 0) {
701 dmu_object_info_t doi;
702 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset,
703 obsolete_sm_obj, &doi));
704 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
705 refcount++;
706 }
707 } else {
708 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL);
709 ASSERT3U(obsolete_sm_obj, ==, 0);
710 }
711 for (unsigned c = 0; c < vd->vdev_children; c++) {
712 refcount += get_obsolete_refcount(vd->vdev_child[c]);
713 }
714
715 return (refcount);
716 }
717
718 static int
719 get_prev_obsolete_spacemap_refcount(spa_t *spa)
720 {
721 uint64_t prev_obj =
722 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object;
723 if (prev_obj != 0) {
724 dmu_object_info_t doi;
725 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi));
726 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) {
727 return (1);
728 }
729 }
730 return (0);
731 }
732
733 static int
734 verify_spacemap_refcounts(spa_t *spa)
735 {
736 uint64_t expected_refcount = 0;
737 uint64_t actual_refcount;
738
739 (void) feature_get_refcount(spa,
740 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM],
741 &expected_refcount);
742 actual_refcount = get_dtl_refcount(spa->spa_root_vdev);
743 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev);
744 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev);
745 actual_refcount += get_prev_obsolete_spacemap_refcount(spa);
746
747 if (expected_refcount != actual_refcount) {
748 (void) printf("space map refcount mismatch: expected %lld != "
749 "actual %lld\n",
750 (longlong_t)expected_refcount,
751 (longlong_t)actual_refcount);
752 return (2);
753 }
754 return (0);
755 }
756
757 static void
758 dump_spacemap(objset_t *os, space_map_t *sm)
759 {
760 uint64_t alloc, offset, entry;
761 const char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID",
762 "INVALID", "INVALID", "INVALID", "INVALID" };
763
764 if (sm == NULL)
765 return;
766
767 (void) printf("space map object %llu:\n",
768 (longlong_t)sm->sm_phys->smp_object);
769 (void) printf(" smp_objsize = 0x%llx\n",
770 (longlong_t)sm->sm_phys->smp_objsize);
771 (void) printf(" smp_alloc = 0x%llx\n",
772 (longlong_t)sm->sm_phys->smp_alloc);
773
774 /*
775 * Print out the freelist entries in both encoded and decoded form.
776 */
777 alloc = 0;
778 for (offset = 0; offset < space_map_length(sm);
779 offset += sizeof (entry)) {
780 uint8_t mapshift = sm->sm_shift;
781
782 VERIFY0(dmu_read(os, space_map_object(sm), offset,
783 sizeof (entry), &entry, DMU_READ_PREFETCH));
784 if (SM_DEBUG_DECODE(entry)) {
785
786 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n",
787 (u_longlong_t)(offset / sizeof (entry)),
788 ddata[SM_DEBUG_ACTION_DECODE(entry)],
789 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry),
790 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry));
791 } else {
792 (void) printf("\t [%6llu] %c range:"
793 " %010llx-%010llx size: %06llx\n",
794 (u_longlong_t)(offset / sizeof (entry)),
795 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
796 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
797 mapshift) + sm->sm_start),
798 (u_longlong_t)((SM_OFFSET_DECODE(entry) <<
799 mapshift) + sm->sm_start +
800 (SM_RUN_DECODE(entry) << mapshift)),
801 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift));
802 if (SM_TYPE_DECODE(entry) == SM_ALLOC)
803 alloc += SM_RUN_DECODE(entry) << mapshift;
804 else
805 alloc -= SM_RUN_DECODE(entry) << mapshift;
806 }
807 }
808 if (alloc != space_map_allocated(sm)) {
809 (void) printf("space_map_object alloc (%llu) INCONSISTENT "
810 "with space map summary (%llu)\n",
811 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc);
812 }
813 }
814
815 static void
816 dump_metaslab_stats(metaslab_t *msp)
817 {
818 char maxbuf[32];
819 range_tree_t *rt = msp->ms_tree;
820 avl_tree_t *t = &msp->ms_size_tree;
821 int free_pct = range_tree_space(rt) * 100 / msp->ms_size;
822
823 /* max sure nicenum has enough space */
824 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ);
825
826 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf));
827
828 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n",
829 "segments", avl_numnodes(t), "maxsize", maxbuf,
830 "freepct", free_pct);
831 (void) printf("\tIn-memory histogram:\n");
832 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
833 }
834
835 static void
836 dump_metaslab(metaslab_t *msp)
837 {
838 vdev_t *vd = msp->ms_group->mg_vd;
839 spa_t *spa = vd->vdev_spa;
840 space_map_t *sm = msp->ms_sm;
841 char freebuf[32];
842
843 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf,
844 sizeof (freebuf));
845
846 (void) printf(
847 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n",
848 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start,
849 (u_longlong_t)space_map_object(sm), freebuf);
850
851 if (dump_opt['m'] > 2 && !dump_opt['L']) {
852 mutex_enter(&msp->ms_lock);
853 metaslab_load_wait(msp);
854 if (!msp->ms_loaded) {
855 VERIFY0(metaslab_load(msp));
856 range_tree_stat_verify(msp->ms_tree);
857 }
858 dump_metaslab_stats(msp);
859 metaslab_unload(msp);
860 mutex_exit(&msp->ms_lock);
861 }
862
863 if (dump_opt['m'] > 1 && sm != NULL &&
864 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) {
865 /*
866 * The space map histogram represents free space in chunks
867 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift).
868 */
869 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n",
870 (u_longlong_t)msp->ms_fragmentation);
871 dump_histogram(sm->sm_phys->smp_histogram,
872 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift);
873 }
874
875 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) {
876 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift));
877
878 dump_spacemap(spa->spa_meta_objset, msp->ms_sm);
879 }
880 }
881
882 static void
883 print_vdev_metaslab_header(vdev_t *vd)
884 {
885 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n",
886 (u_longlong_t)vd->vdev_id,
887 "metaslabs", (u_longlong_t)vd->vdev_ms_count,
888 "offset", "spacemap", "free");
889 (void) printf("\t%15s %19s %15s %10s\n",
890 "---------------", "-------------------",
891 "---------------", "-------------");
892 }
893
894 static void
895 dump_metaslab_groups(spa_t *spa)
896 {
897 vdev_t *rvd = spa->spa_root_vdev;
898 metaslab_class_t *mc = spa_normal_class(spa);
899 uint64_t fragmentation;
900
901 metaslab_class_histogram_verify(mc);
902
903 for (unsigned c = 0; c < rvd->vdev_children; c++) {
904 vdev_t *tvd = rvd->vdev_child[c];
905 metaslab_group_t *mg = tvd->vdev_mg;
906
907 if (mg->mg_class != mc)
908 continue;
909
910 metaslab_group_histogram_verify(mg);
911 mg->mg_fragmentation = metaslab_group_fragmentation(mg);
912
913 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t"
914 "fragmentation",
915 (u_longlong_t)tvd->vdev_id,
916 (u_longlong_t)tvd->vdev_ms_count);
917 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) {
918 (void) printf("%3s\n", "-");
919 } else {
920 (void) printf("%3llu%%\n",
921 (u_longlong_t)mg->mg_fragmentation);
922 }
923 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
924 }
925
926 (void) printf("\tpool %s\tfragmentation", spa_name(spa));
927 fragmentation = metaslab_class_fragmentation(mc);
928 if (fragmentation == ZFS_FRAG_INVALID)
929 (void) printf("\t%3s\n", "-");
930 else
931 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation);
932 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0);
933 }
934
935 static void
936 print_vdev_indirect(vdev_t *vd)
937 {
938 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
939 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
940 vdev_indirect_births_t *vib = vd->vdev_indirect_births;
941
942 if (vim == NULL) {
943 ASSERT3P(vib, ==, NULL);
944 return;
945 }
946
947 ASSERT3U(vdev_indirect_mapping_object(vim), ==,
948 vic->vic_mapping_object);
949 ASSERT3U(vdev_indirect_births_object(vib), ==,
950 vic->vic_births_object);
951
952 (void) printf("indirect births obj %llu:\n",
953 (longlong_t)vic->vic_births_object);
954 (void) printf(" vib_count = %llu\n",
955 (longlong_t)vdev_indirect_births_count(vib));
956 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) {
957 vdev_indirect_birth_entry_phys_t *cur_vibe =
958 &vib->vib_entries[i];
959 (void) printf("\toffset %llx -> txg %llu\n",
960 (longlong_t)cur_vibe->vibe_offset,
961 (longlong_t)cur_vibe->vibe_phys_birth_txg);
962 }
963 (void) printf("\n");
964
965 (void) printf("indirect mapping obj %llu:\n",
966 (longlong_t)vic->vic_mapping_object);
967 (void) printf(" vim_max_offset = 0x%llx\n",
968 (longlong_t)vdev_indirect_mapping_max_offset(vim));
969 (void) printf(" vim_bytes_mapped = 0x%llx\n",
970 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim));
971 (void) printf(" vim_count = %llu\n",
972 (longlong_t)vdev_indirect_mapping_num_entries(vim));
973
974 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3)
975 return;
976
977 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim);
978
979 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
980 vdev_indirect_mapping_entry_phys_t *vimep =
981 &vim->vim_entries[i];
982 (void) printf("\t<%llx:%llx:%llx> -> "
983 "<%llx:%llx:%llx> (%x obsolete)\n",
984 (longlong_t)vd->vdev_id,
985 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
986 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
987 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst),
988 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst),
989 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
990 counts[i]);
991 }
992 (void) printf("\n");
993
994 uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd);
995 if (obsolete_sm_object != 0) {
996 objset_t *mos = vd->vdev_spa->spa_meta_objset;
997 (void) printf("obsolete space map object %llu:\n",
998 (u_longlong_t)obsolete_sm_object);
999 ASSERT(vd->vdev_obsolete_sm != NULL);
1000 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==,
1001 obsolete_sm_object);
1002 dump_spacemap(mos, vd->vdev_obsolete_sm);
1003 (void) printf("\n");
1004 }
1005 }
1006
1007 static void
1008 dump_metaslabs(spa_t *spa)
1009 {
1010 vdev_t *vd, *rvd = spa->spa_root_vdev;
1011 uint64_t m, c = 0, children = rvd->vdev_children;
1012
1013 (void) printf("\nMetaslabs:\n");
1014
1015 if (!dump_opt['d'] && zopt_objects > 0) {
1016 c = zopt_object[0];
1017
1018 if (c >= children)
1019 (void) fatal("bad vdev id: %llu", (u_longlong_t)c);
1020
1021 if (zopt_objects > 1) {
1022 vd = rvd->vdev_child[c];
1023 print_vdev_metaslab_header(vd);
1024
1025 for (m = 1; m < zopt_objects; m++) {
1026 if (zopt_object[m] < vd->vdev_ms_count)
1027 dump_metaslab(
1028 vd->vdev_ms[zopt_object[m]]);
1029 else
1030 (void) fprintf(stderr, "bad metaslab "
1031 "number %llu\n",
1032 (u_longlong_t)zopt_object[m]);
1033 }
1034 (void) printf("\n");
1035 return;
1036 }
1037 children = c + 1;
1038 }
1039 for (; c < children; c++) {
1040 vd = rvd->vdev_child[c];
1041 print_vdev_metaslab_header(vd);
1042
1043 print_vdev_indirect(vd);
1044
1045 for (m = 0; m < vd->vdev_ms_count; m++)
1046 dump_metaslab(vd->vdev_ms[m]);
1047 (void) printf("\n");
1048 }
1049 }
1050
1051 static void
1052 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index)
1053 {
1054 const ddt_phys_t *ddp = dde->dde_phys;
1055 const ddt_key_t *ddk = &dde->dde_key;
1056 const char *types[4] = { "ditto", "single", "double", "triple" };
1057 char blkbuf[BP_SPRINTF_LEN];
1058 blkptr_t blk;
1059 int p;
1060
1061 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
1062 if (ddp->ddp_phys_birth == 0)
1063 continue;
1064 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk);
1065 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk);
1066 (void) printf("index %llx refcnt %llu %s %s\n",
1067 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt,
1068 types[p], blkbuf);
1069 }
1070 }
1071
1072 static void
1073 dump_dedup_ratio(const ddt_stat_t *dds)
1074 {
1075 double rL, rP, rD, D, dedup, compress, copies;
1076
1077 if (dds->dds_blocks == 0)
1078 return;
1079
1080 rL = (double)dds->dds_ref_lsize;
1081 rP = (double)dds->dds_ref_psize;
1082 rD = (double)dds->dds_ref_dsize;
1083 D = (double)dds->dds_dsize;
1084
1085 dedup = rD / D;
1086 compress = rL / rP;
1087 copies = rD / rP;
1088
1089 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, "
1090 "dedup * compress / copies = %.2f\n\n",
1091 dedup, compress, copies, dedup * compress / copies);
1092 }
1093
1094 static void
1095 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class)
1096 {
1097 char name[DDT_NAMELEN];
1098 ddt_entry_t dde;
1099 uint64_t walk = 0;
1100 dmu_object_info_t doi;
1101 uint64_t count, dspace, mspace;
1102 int error;
1103
1104 error = ddt_object_info(ddt, type, class, &doi);
1105
1106 if (error == ENOENT)
1107 return;
1108 ASSERT(error == 0);
1109
1110 error = ddt_object_count(ddt, type, class, &count);
1111 ASSERT(error == 0);
1112 if (count == 0)
1113 return;
1114
1115 dspace = doi.doi_physical_blocks_512 << 9;
1116 mspace = doi.doi_fill_count * doi.doi_data_block_size;
1117
1118 ddt_object_name(ddt, type, class, name);
1119
1120 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n",
1121 name,
1122 (u_longlong_t)count,
1123 (u_longlong_t)(dspace / count),
1124 (u_longlong_t)(mspace / count));
1125
1126 if (dump_opt['D'] < 3)
1127 return;
1128
1129 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]);
1130
1131 if (dump_opt['D'] < 4)
1132 return;
1133
1134 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE)
1135 return;
1136
1137 (void) printf("%s contents:\n\n", name);
1138
1139 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0)
1140 dump_dde(ddt, &dde, walk);
1141
1142 ASSERT(error == ENOENT);
1143
1144 (void) printf("\n");
1145 }
1146
1147 static void
1148 dump_all_ddts(spa_t *spa)
1149 {
1150 ddt_histogram_t ddh_total;
1151 ddt_stat_t dds_total;
1152
1153 bzero(&ddh_total, sizeof (ddh_total));
1154 bzero(&dds_total, sizeof (dds_total));
1155
1156 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) {
1157 ddt_t *ddt = spa->spa_ddt[c];
1158 for (enum ddt_type type = 0; type < DDT_TYPES; type++) {
1159 for (enum ddt_class class = 0; class < DDT_CLASSES;
1160 class++) {
1161 dump_ddt(ddt, type, class);
1162 }
1163 }
1164 }
1165
1166 ddt_get_dedup_stats(spa, &dds_total);
1167
1168 if (dds_total.dds_blocks == 0) {
1169 (void) printf("All DDTs are empty\n");
1170 return;
1171 }
1172
1173 (void) printf("\n");
1174
1175 if (dump_opt['D'] > 1) {
1176 (void) printf("DDT histogram (aggregated over all DDTs):\n");
1177 ddt_get_dedup_histogram(spa, &ddh_total);
1178 zpool_dump_ddt(&dds_total, &ddh_total);
1179 }
1180
1181 dump_dedup_ratio(&dds_total);
1182 }
1183
1184 static void
1185 dump_dtl_seg(void *arg, uint64_t start, uint64_t size)
1186 {
1187 char *prefix = arg;
1188
1189 (void) printf("%s [%llu,%llu) length %llu\n",
1190 prefix,
1191 (u_longlong_t)start,
1192 (u_longlong_t)(start + size),
1193 (u_longlong_t)(size));
1194 }
1195
1196 static void
1197 dump_dtl(vdev_t *vd, int indent)
1198 {
1199 spa_t *spa = vd->vdev_spa;
1200 boolean_t required;
1201 const char *name[DTL_TYPES] = { "missing", "partial", "scrub",
1202 "outage" };
1203 char prefix[256];
1204
1205 spa_vdev_state_enter(spa, SCL_NONE);
1206 required = vdev_dtl_required(vd);
1207 (void) spa_vdev_state_exit(spa, NULL, 0);
1208
1209 if (indent == 0)
1210 (void) printf("\nDirty time logs:\n\n");
1211
1212 (void) printf("\t%*s%s [%s]\n", indent, "",
1213 vd->vdev_path ? vd->vdev_path :
1214 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa),
1215 required ? "DTL-required" : "DTL-expendable");
1216
1217 for (int t = 0; t < DTL_TYPES; t++) {
1218 range_tree_t *rt = vd->vdev_dtl[t];
1219 if (range_tree_space(rt) == 0)
1220 continue;
1221 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s",
1222 indent + 2, "", name[t]);
1223 range_tree_walk(rt, dump_dtl_seg, prefix);
1224 if (dump_opt['d'] > 5 && vd->vdev_children == 0)
1225 dump_spacemap(spa->spa_meta_objset,
1226 vd->vdev_dtl_sm);
1227 }
1228
1229 for (unsigned c = 0; c < vd->vdev_children; c++)
1230 dump_dtl(vd->vdev_child[c], indent + 4);
1231 }
1232
1233 static void
1234 dump_history(spa_t *spa)
1235 {
1236 nvlist_t **events = NULL;
1237 char *buf;
1238 uint64_t resid, len, off = 0;
1239 uint_t num = 0;
1240 int error;
1241 time_t tsec;
1242 struct tm t;
1243 char tbuf[30];
1244 char internalstr[MAXPATHLEN];
1245
1246 if ((buf = malloc(SPA_OLD_MAXBLOCKSIZE)) == NULL) {
1247 (void) fprintf(stderr, "%s: unable to allocate I/O buffer\n",
1248 __func__);
1249 return;
1250 }
1251
1252 do {
1253 len = SPA_OLD_MAXBLOCKSIZE;
1254
1255 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) {
1256 (void) fprintf(stderr, "Unable to read history: "
1257 "error %d\n", error);
1258 free(buf);
1259 return;
1260 }
1261
1262 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0)
1263 break;
1264
1265 off -= resid;
1266 } while (len != 0);
1267
1268 (void) printf("\nHistory:\n");
1269 for (unsigned i = 0; i < num; i++) {
1270 uint64_t time, txg, ievent;
1271 char *cmd, *intstr;
1272 boolean_t printed = B_FALSE;
1273
1274 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME,
1275 &time) != 0)
1276 goto next;
1277 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD,
1278 &cmd) != 0) {
1279 if (nvlist_lookup_uint64(events[i],
1280 ZPOOL_HIST_INT_EVENT, &ievent) != 0)
1281 goto next;
1282 verify(nvlist_lookup_uint64(events[i],
1283 ZPOOL_HIST_TXG, &txg) == 0);
1284 verify(nvlist_lookup_string(events[i],
1285 ZPOOL_HIST_INT_STR, &intstr) == 0);
1286 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS)
1287 goto next;
1288
1289 (void) snprintf(internalstr,
1290 sizeof (internalstr),
1291 "[internal %s txg:%lld] %s",
1292 zfs_history_event_names[ievent],
1293 (longlong_t)txg, intstr);
1294 cmd = internalstr;
1295 }
1296 tsec = time;
1297 (void) localtime_r(&tsec, &t);
1298 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t);
1299 (void) printf("%s %s\n", tbuf, cmd);
1300 printed = B_TRUE;
1301
1302 next:
1303 if (dump_opt['h'] > 1) {
1304 if (!printed)
1305 (void) printf("unrecognized record:\n");
1306 dump_nvlist(events[i], 2);
1307 }
1308 }
1309 free(buf);
1310 }
1311
1312 /*ARGSUSED*/
1313 static void
1314 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size)
1315 {
1316 }
1317
1318 static uint64_t
1319 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp,
1320 const zbookmark_phys_t *zb)
1321 {
1322 if (dnp == NULL) {
1323 ASSERT(zb->zb_level < 0);
1324 if (zb->zb_object == 0)
1325 return (zb->zb_blkid);
1326 return (zb->zb_blkid * BP_GET_LSIZE(bp));
1327 }
1328
1329 ASSERT(zb->zb_level >= 0);
1330
1331 return ((zb->zb_blkid <<
1332 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) *
1333 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT);
1334 }
1335
1336 static void
1337 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp)
1338 {
1339 const dva_t *dva = bp->blk_dva;
1340 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1;
1341 int i;
1342
1343 if (dump_opt['b'] >= 6) {
1344 snprintf_blkptr(blkbuf, buflen, bp);
1345 return;
1346 }
1347
1348 if (BP_IS_EMBEDDED(bp)) {
1349 (void) sprintf(blkbuf,
1350 "EMBEDDED et=%u %llxL/%llxP B=%llu",
1351 (int)BPE_GET_ETYPE(bp),
1352 (u_longlong_t)BPE_GET_LSIZE(bp),
1353 (u_longlong_t)BPE_GET_PSIZE(bp),
1354 (u_longlong_t)bp->blk_birth);
1355 return;
1356 }
1357
1358 blkbuf[0] = '\0';
1359
1360 for (i = 0; i < ndvas; i++)
1361 (void) snprintf(blkbuf + strlen(blkbuf),
1362 buflen - strlen(blkbuf), "%llu:%llx:%llx ",
1363 (u_longlong_t)DVA_GET_VDEV(&dva[i]),
1364 (u_longlong_t)DVA_GET_OFFSET(&dva[i]),
1365 (u_longlong_t)DVA_GET_ASIZE(&dva[i]));
1366
1367 if (BP_IS_HOLE(bp)) {
1368 (void) snprintf(blkbuf + strlen(blkbuf),
1369 buflen - strlen(blkbuf),
1370 "%llxL B=%llu",
1371 (u_longlong_t)BP_GET_LSIZE(bp),
1372 (u_longlong_t)bp->blk_birth);
1373 } else {
1374 (void) snprintf(blkbuf + strlen(blkbuf),
1375 buflen - strlen(blkbuf),
1376 "%llxL/%llxP F=%llu B=%llu/%llu",
1377 (u_longlong_t)BP_GET_LSIZE(bp),
1378 (u_longlong_t)BP_GET_PSIZE(bp),
1379 (u_longlong_t)BP_GET_FILL(bp),
1380 (u_longlong_t)bp->blk_birth,
1381 (u_longlong_t)BP_PHYSICAL_BIRTH(bp));
1382 }
1383 }
1384
1385 static void
1386 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb,
1387 const dnode_phys_t *dnp)
1388 {
1389 char blkbuf[BP_SPRINTF_LEN];
1390 int l;
1391
1392 if (!BP_IS_EMBEDDED(bp)) {
1393 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type);
1394 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level);
1395 }
1396
1397 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb));
1398
1399 ASSERT(zb->zb_level >= 0);
1400
1401 for (l = dnp->dn_nlevels - 1; l >= -1; l--) {
1402 if (l == zb->zb_level) {
1403 (void) printf("L%llx", (u_longlong_t)zb->zb_level);
1404 } else {
1405 (void) printf(" ");
1406 }
1407 }
1408
1409 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1410 (void) printf("%s\n", blkbuf);
1411 }
1412
1413 static int
1414 visit_indirect(spa_t *spa, const dnode_phys_t *dnp,
1415 blkptr_t *bp, const zbookmark_phys_t *zb)
1416 {
1417 int err = 0;
1418
1419 if (bp->blk_birth == 0)
1420 return (0);
1421
1422 print_indirect(bp, zb, dnp);
1423
1424 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) {
1425 arc_flags_t flags = ARC_FLAG_WAIT;
1426 int i;
1427 blkptr_t *cbp;
1428 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT;
1429 arc_buf_t *buf;
1430 uint64_t fill = 0;
1431
1432 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf,
1433 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb);
1434 if (err)
1435 return (err);
1436 ASSERT(buf->b_data);
1437
1438 /* recursively visit blocks below this */
1439 cbp = buf->b_data;
1440 for (i = 0; i < epb; i++, cbp++) {
1441 zbookmark_phys_t czb;
1442
1443 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object,
1444 zb->zb_level - 1,
1445 zb->zb_blkid * epb + i);
1446 err = visit_indirect(spa, dnp, cbp, &czb);
1447 if (err)
1448 break;
1449 fill += BP_GET_FILL(cbp);
1450 }
1451 if (!err)
1452 ASSERT3U(fill, ==, BP_GET_FILL(bp));
1453 arc_buf_destroy(buf, &buf);
1454 }
1455
1456 return (err);
1457 }
1458
1459 /*ARGSUSED*/
1460 static void
1461 dump_indirect(dnode_t *dn)
1462 {
1463 dnode_phys_t *dnp = dn->dn_phys;
1464 int j;
1465 zbookmark_phys_t czb;
1466
1467 (void) printf("Indirect blocks:\n");
1468
1469 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset),
1470 dn->dn_object, dnp->dn_nlevels - 1, 0);
1471 for (j = 0; j < dnp->dn_nblkptr; j++) {
1472 czb.zb_blkid = j;
1473 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp,
1474 &dnp->dn_blkptr[j], &czb);
1475 }
1476
1477 (void) printf("\n");
1478 }
1479
1480 /*ARGSUSED*/
1481 static void
1482 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size)
1483 {
1484 dsl_dir_phys_t *dd = data;
1485 time_t crtime;
1486 char nice[32];
1487
1488 /* make sure nicenum has enough space */
1489 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ);
1490
1491 if (dd == NULL)
1492 return;
1493
1494 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t));
1495
1496 crtime = dd->dd_creation_time;
1497 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1498 (void) printf("\t\thead_dataset_obj = %llu\n",
1499 (u_longlong_t)dd->dd_head_dataset_obj);
1500 (void) printf("\t\tparent_dir_obj = %llu\n",
1501 (u_longlong_t)dd->dd_parent_obj);
1502 (void) printf("\t\torigin_obj = %llu\n",
1503 (u_longlong_t)dd->dd_origin_obj);
1504 (void) printf("\t\tchild_dir_zapobj = %llu\n",
1505 (u_longlong_t)dd->dd_child_dir_zapobj);
1506 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice));
1507 (void) printf("\t\tused_bytes = %s\n", nice);
1508 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice));
1509 (void) printf("\t\tcompressed_bytes = %s\n", nice);
1510 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice));
1511 (void) printf("\t\tuncompressed_bytes = %s\n", nice);
1512 zdb_nicenum(dd->dd_quota, nice, sizeof (nice));
1513 (void) printf("\t\tquota = %s\n", nice);
1514 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice));
1515 (void) printf("\t\treserved = %s\n", nice);
1516 (void) printf("\t\tprops_zapobj = %llu\n",
1517 (u_longlong_t)dd->dd_props_zapobj);
1518 (void) printf("\t\tdeleg_zapobj = %llu\n",
1519 (u_longlong_t)dd->dd_deleg_zapobj);
1520 (void) printf("\t\tflags = %llx\n",
1521 (u_longlong_t)dd->dd_flags);
1522
1523 #define DO(which) \
1524 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \
1525 sizeof (nice)); \
1526 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice)
1527 DO(HEAD);
1528 DO(SNAP);
1529 DO(CHILD);
1530 DO(CHILD_RSRV);
1531 DO(REFRSRV);
1532 #undef DO
1533 }
1534
1535 /*ARGSUSED*/
1536 static void
1537 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size)
1538 {
1539 dsl_dataset_phys_t *ds = data;
1540 time_t crtime;
1541 char used[32], compressed[32], uncompressed[32], unique[32];
1542 char blkbuf[BP_SPRINTF_LEN];
1543
1544 /* make sure nicenum has enough space */
1545 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ);
1546 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ);
1547 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ);
1548 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ);
1549
1550 if (ds == NULL)
1551 return;
1552
1553 ASSERT(size == sizeof (*ds));
1554 crtime = ds->ds_creation_time;
1555 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used));
1556 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed));
1557 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed,
1558 sizeof (uncompressed));
1559 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique));
1560 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp);
1561
1562 (void) printf("\t\tdir_obj = %llu\n",
1563 (u_longlong_t)ds->ds_dir_obj);
1564 (void) printf("\t\tprev_snap_obj = %llu\n",
1565 (u_longlong_t)ds->ds_prev_snap_obj);
1566 (void) printf("\t\tprev_snap_txg = %llu\n",
1567 (u_longlong_t)ds->ds_prev_snap_txg);
1568 (void) printf("\t\tnext_snap_obj = %llu\n",
1569 (u_longlong_t)ds->ds_next_snap_obj);
1570 (void) printf("\t\tsnapnames_zapobj = %llu\n",
1571 (u_longlong_t)ds->ds_snapnames_zapobj);
1572 (void) printf("\t\tnum_children = %llu\n",
1573 (u_longlong_t)ds->ds_num_children);
1574 (void) printf("\t\tuserrefs_obj = %llu\n",
1575 (u_longlong_t)ds->ds_userrefs_obj);
1576 (void) printf("\t\tcreation_time = %s", ctime(&crtime));
1577 (void) printf("\t\tcreation_txg = %llu\n",
1578 (u_longlong_t)ds->ds_creation_txg);
1579 (void) printf("\t\tdeadlist_obj = %llu\n",
1580 (u_longlong_t)ds->ds_deadlist_obj);
1581 (void) printf("\t\tused_bytes = %s\n", used);
1582 (void) printf("\t\tcompressed_bytes = %s\n", compressed);
1583 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed);
1584 (void) printf("\t\tunique = %s\n", unique);
1585 (void) printf("\t\tfsid_guid = %llu\n",
1586 (u_longlong_t)ds->ds_fsid_guid);
1587 (void) printf("\t\tguid = %llu\n",
1588 (u_longlong_t)ds->ds_guid);
1589 (void) printf("\t\tflags = %llx\n",
1590 (u_longlong_t)ds->ds_flags);
1591 (void) printf("\t\tnext_clones_obj = %llu\n",
1592 (u_longlong_t)ds->ds_next_clones_obj);
1593 (void) printf("\t\tprops_obj = %llu\n",
1594 (u_longlong_t)ds->ds_props_obj);
1595 (void) printf("\t\tbp = %s\n", blkbuf);
1596 }
1597
1598 /* ARGSUSED */
1599 static int
1600 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1601 {
1602 char blkbuf[BP_SPRINTF_LEN];
1603
1604 if (bp->blk_birth != 0) {
1605 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
1606 (void) printf("\t%s\n", blkbuf);
1607 }
1608 return (0);
1609 }
1610
1611 static void
1612 dump_bptree(objset_t *os, uint64_t obj, const char *name)
1613 {
1614 char bytes[32];
1615 bptree_phys_t *bt;
1616 dmu_buf_t *db;
1617
1618 /* make sure nicenum has enough space */
1619 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1620
1621 if (dump_opt['d'] < 3)
1622 return;
1623
1624 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db));
1625 bt = db->db_data;
1626 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes));
1627 (void) printf("\n %s: %llu datasets, %s\n",
1628 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes);
1629 dmu_buf_rele(db, FTAG);
1630
1631 if (dump_opt['d'] < 5)
1632 return;
1633
1634 (void) printf("\n");
1635
1636 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL);
1637 }
1638
1639 /* ARGSUSED */
1640 static int
1641 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
1642 {
1643 char blkbuf[BP_SPRINTF_LEN];
1644
1645 ASSERT(bp->blk_birth != 0);
1646 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp);
1647 (void) printf("\t%s\n", blkbuf);
1648 return (0);
1649 }
1650
1651 static void
1652 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent)
1653 {
1654 char bytes[32];
1655 char comp[32];
1656 char uncomp[32];
1657 uint64_t i;
1658
1659 /* make sure nicenum has enough space */
1660 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1661 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1662 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1663
1664 if (dump_opt['d'] < 3)
1665 return;
1666
1667 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes));
1668 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) {
1669 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp));
1670 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp));
1671 (void) printf(" %*s: object %llu, %llu local blkptrs, "
1672 "%llu subobjs in object, %llu, %s (%s/%s comp)\n",
1673 indent * 8, name,
1674 (u_longlong_t)bpo->bpo_object,
1675 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1676 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs,
1677 (u_longlong_t)bpo->bpo_phys->bpo_subobjs,
1678 bytes, comp, uncomp);
1679
1680 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) {
1681 uint64_t subobj;
1682 bpobj_t subbpo;
1683 int error;
1684 VERIFY0(dmu_read(bpo->bpo_os,
1685 bpo->bpo_phys->bpo_subobjs,
1686 i * sizeof (subobj), sizeof (subobj), &subobj, 0));
1687 error = bpobj_open(&subbpo, bpo->bpo_os, subobj);
1688 if (error != 0) {
1689 (void) printf("ERROR %u while trying to open "
1690 "subobj id %llu\n",
1691 error, (u_longlong_t)subobj);
1692 continue;
1693 }
1694 dump_full_bpobj(&subbpo, "subobj", indent + 1);
1695 bpobj_close(&subbpo);
1696 }
1697 } else {
1698 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n",
1699 indent * 8, name,
1700 (u_longlong_t)bpo->bpo_object,
1701 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs,
1702 bytes);
1703 }
1704
1705 if (dump_opt['d'] < 5)
1706 return;
1707
1708
1709 if (indent == 0) {
1710 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL);
1711 (void) printf("\n");
1712 }
1713 }
1714
1715 static void
1716 dump_deadlist(dsl_deadlist_t *dl)
1717 {
1718 dsl_deadlist_entry_t *dle;
1719 uint64_t unused;
1720 char bytes[32];
1721 char comp[32];
1722 char uncomp[32];
1723
1724 /* make sure nicenum has enough space */
1725 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ);
1726 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ);
1727 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ);
1728
1729 if (dump_opt['d'] < 3)
1730 return;
1731
1732 if (dl->dl_oldfmt) {
1733 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0);
1734 return;
1735 }
1736
1737 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes));
1738 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp));
1739 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp));
1740 (void) printf("\n Deadlist: %s (%s/%s comp)\n",
1741 bytes, comp, uncomp);
1742
1743 if (dump_opt['d'] < 4)
1744 return;
1745
1746 (void) printf("\n");
1747
1748 /* force the tree to be loaded */
1749 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused);
1750
1751 for (dle = avl_first(&dl->dl_tree); dle;
1752 dle = AVL_NEXT(&dl->dl_tree, dle)) {
1753 if (dump_opt['d'] >= 5) {
1754 char buf[128];
1755 (void) snprintf(buf, sizeof (buf),
1756 "mintxg %llu -> obj %llu",
1757 (longlong_t)dle->dle_mintxg,
1758 (longlong_t)dle->dle_bpobj.bpo_object);
1759
1760 dump_full_bpobj(&dle->dle_bpobj, buf, 0);
1761 } else {
1762 (void) printf("mintxg %llu -> obj %llu\n",
1763 (longlong_t)dle->dle_mintxg,
1764 (longlong_t)dle->dle_bpobj.bpo_object);
1765
1766 }
1767 }
1768 }
1769
1770 static avl_tree_t idx_tree;
1771 static avl_tree_t domain_tree;
1772 static boolean_t fuid_table_loaded;
1773 static objset_t *sa_os = NULL;
1774 static sa_attr_type_t *sa_attr_table = NULL;
1775
1776 static int
1777 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp)
1778 {
1779 int err;
1780 uint64_t sa_attrs = 0;
1781 uint64_t version = 0;
1782
1783 VERIFY3P(sa_os, ==, NULL);
1784 err = dmu_objset_own(path, type, B_TRUE, B_FALSE, tag, osp);
1785 if (err != 0) {
1786 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path,
1787 strerror(err));
1788 return (err);
1789 }
1790
1791 if (dmu_objset_type(*osp) == DMU_OST_ZFS && !(*osp)->os_encrypted) {
1792 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR,
1793 8, 1, &version);
1794 if (version >= ZPL_VERSION_SA) {
1795 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS,
1796 8, 1, &sa_attrs);
1797 }
1798 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END,
1799 &sa_attr_table);
1800 if (err != 0) {
1801 (void) fprintf(stderr, "sa_setup failed: %s\n",
1802 strerror(err));
1803 dmu_objset_disown(*osp, B_FALSE, tag);
1804 *osp = NULL;
1805 }
1806 }
1807 sa_os = *osp;
1808
1809 return (0);
1810 }
1811
1812 static void
1813 close_objset(objset_t *os, void *tag)
1814 {
1815 VERIFY3P(os, ==, sa_os);
1816 if (os->os_sa != NULL)
1817 sa_tear_down(os);
1818 dmu_objset_disown(os, B_FALSE, tag);
1819 sa_attr_table = NULL;
1820 sa_os = NULL;
1821 }
1822
1823 static void
1824 fuid_table_destroy(void)
1825 {
1826 if (fuid_table_loaded) {
1827 zfs_fuid_table_destroy(&idx_tree, &domain_tree);
1828 fuid_table_loaded = B_FALSE;
1829 }
1830 }
1831
1832 /*
1833 * print uid or gid information.
1834 * For normal POSIX id just the id is printed in decimal format.
1835 * For CIFS files with FUID the fuid is printed in hex followed by
1836 * the domain-rid string.
1837 */
1838 static void
1839 print_idstr(uint64_t id, const char *id_type)
1840 {
1841 if (FUID_INDEX(id)) {
1842 char *domain;
1843
1844 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id));
1845 (void) printf("\t%s %llx [%s-%d]\n", id_type,
1846 (u_longlong_t)id, domain, (int)FUID_RID(id));
1847 } else {
1848 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id);
1849 }
1850
1851 }
1852
1853 static void
1854 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid)
1855 {
1856 uint32_t uid_idx, gid_idx;
1857
1858 uid_idx = FUID_INDEX(uid);
1859 gid_idx = FUID_INDEX(gid);
1860
1861 /* Load domain table, if not already loaded */
1862 if (!fuid_table_loaded && (uid_idx || gid_idx)) {
1863 uint64_t fuid_obj;
1864
1865 /* first find the fuid object. It lives in the master node */
1866 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES,
1867 8, 1, &fuid_obj) == 0);
1868 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree);
1869 (void) zfs_fuid_table_load(os, fuid_obj,
1870 &idx_tree, &domain_tree);
1871 fuid_table_loaded = B_TRUE;
1872 }
1873
1874 print_idstr(uid, "uid");
1875 print_idstr(gid, "gid");
1876 }
1877
1878 static void
1879 dump_znode_sa_xattr(sa_handle_t *hdl)
1880 {
1881 nvlist_t *sa_xattr;
1882 nvpair_t *elem = NULL;
1883 int sa_xattr_size = 0;
1884 int sa_xattr_entries = 0;
1885 int error;
1886 char *sa_xattr_packed;
1887
1888 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size);
1889 if (error || sa_xattr_size == 0)
1890 return;
1891
1892 sa_xattr_packed = malloc(sa_xattr_size);
1893 if (sa_xattr_packed == NULL)
1894 return;
1895
1896 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR],
1897 sa_xattr_packed, sa_xattr_size);
1898 if (error) {
1899 free(sa_xattr_packed);
1900 return;
1901 }
1902
1903 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0);
1904 if (error) {
1905 free(sa_xattr_packed);
1906 return;
1907 }
1908
1909 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL)
1910 sa_xattr_entries++;
1911
1912 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n",
1913 sa_xattr_size, sa_xattr_entries);
1914 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) {
1915 uchar_t *value;
1916 uint_t cnt, idx;
1917
1918 (void) printf("\t\t%s = ", nvpair_name(elem));
1919 nvpair_value_byte_array(elem, &value, &cnt);
1920 for (idx = 0; idx < cnt; ++idx) {
1921 if (isprint(value[idx]))
1922 (void) putchar(value[idx]);
1923 else
1924 (void) printf("\\%3.3o", value[idx]);
1925 }
1926 (void) putchar('\n');
1927 }
1928
1929 nvlist_free(sa_xattr);
1930 free(sa_xattr_packed);
1931 }
1932
1933 /*ARGSUSED*/
1934 static void
1935 dump_znode(objset_t *os, uint64_t object, void *data, size_t size)
1936 {
1937 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */
1938 sa_handle_t *hdl;
1939 uint64_t xattr, rdev, gen;
1940 uint64_t uid, gid, mode, fsize, parent, links;
1941 uint64_t pflags;
1942 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2];
1943 time_t z_crtime, z_atime, z_mtime, z_ctime;
1944 sa_bulk_attr_t bulk[12];
1945 int idx = 0;
1946 int error;
1947
1948 VERIFY3P(os, ==, sa_os);
1949 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) {
1950 (void) printf("Failed to get handle for SA znode\n");
1951 return;
1952 }
1953
1954 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8);
1955 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8);
1956 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL,
1957 &links, 8);
1958 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8);
1959 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL,
1960 &mode, 8);
1961 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT],
1962 NULL, &parent, 8);
1963 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL,
1964 &fsize, 8);
1965 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL,
1966 acctm, 16);
1967 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL,
1968 modtm, 16);
1969 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL,
1970 crtm, 16);
1971 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL,
1972 chgtm, 16);
1973 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL,
1974 &pflags, 8);
1975
1976 if (sa_bulk_lookup(hdl, bulk, idx)) {
1977 (void) sa_handle_destroy(hdl);
1978 return;
1979 }
1980
1981 z_crtime = (time_t)crtm[0];
1982 z_atime = (time_t)acctm[0];
1983 z_mtime = (time_t)modtm[0];
1984 z_ctime = (time_t)chgtm[0];
1985
1986 if (dump_opt['d'] > 4) {
1987 error = zfs_obj_to_path(os, object, path, sizeof (path));
1988 if (error == ESTALE) {
1989 (void) snprintf(path, sizeof (path), "on delete queue");
1990 } else if (error != 0) {
1991 leaked_objects++;
1992 (void) snprintf(path, sizeof (path),
1993 "path not found, possibly leaked");
1994 }
1995 (void) printf("\tpath %s\n", path);
1996 }
1997 dump_uidgid(os, uid, gid);
1998 (void) printf("\tatime %s", ctime(&z_atime));
1999 (void) printf("\tmtime %s", ctime(&z_mtime));
2000 (void) printf("\tctime %s", ctime(&z_ctime));
2001 (void) printf("\tcrtime %s", ctime(&z_crtime));
2002 (void) printf("\tgen %llu\n", (u_longlong_t)gen);
2003 (void) printf("\tmode %llo\n", (u_longlong_t)mode);
2004 (void) printf("\tsize %llu\n", (u_longlong_t)fsize);
2005 (void) printf("\tparent %llu\n", (u_longlong_t)parent);
2006 (void) printf("\tlinks %llu\n", (u_longlong_t)links);
2007 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags);
2008 if (dmu_objset_projectquota_enabled(os) && (pflags & ZFS_PROJID)) {
2009 uint64_t projid;
2010
2011 if (sa_lookup(hdl, sa_attr_table[ZPL_PROJID], &projid,
2012 sizeof (uint64_t)) == 0)
2013 (void) printf("\tprojid %llu\n", (u_longlong_t)projid);
2014 }
2015 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr,
2016 sizeof (uint64_t)) == 0)
2017 (void) printf("\txattr %llu\n", (u_longlong_t)xattr);
2018 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev,
2019 sizeof (uint64_t)) == 0)
2020 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev);
2021 dump_znode_sa_xattr(hdl);
2022 sa_handle_destroy(hdl);
2023 }
2024
2025 /*ARGSUSED*/
2026 static void
2027 dump_acl(objset_t *os, uint64_t object, void *data, size_t size)
2028 {
2029 }
2030
2031 /*ARGSUSED*/
2032 static void
2033 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size)
2034 {
2035 }
2036
2037 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = {
2038 dump_none, /* unallocated */
2039 dump_zap, /* object directory */
2040 dump_uint64, /* object array */
2041 dump_none, /* packed nvlist */
2042 dump_packed_nvlist, /* packed nvlist size */
2043 dump_none, /* bpobj */
2044 dump_bpobj, /* bpobj header */
2045 dump_none, /* SPA space map header */
2046 dump_none, /* SPA space map */
2047 dump_none, /* ZIL intent log */
2048 dump_dnode, /* DMU dnode */
2049 dump_dmu_objset, /* DMU objset */
2050 dump_dsl_dir, /* DSL directory */
2051 dump_zap, /* DSL directory child map */
2052 dump_zap, /* DSL dataset snap map */
2053 dump_zap, /* DSL props */
2054 dump_dsl_dataset, /* DSL dataset */
2055 dump_znode, /* ZFS znode */
2056 dump_acl, /* ZFS V0 ACL */
2057 dump_uint8, /* ZFS plain file */
2058 dump_zpldir, /* ZFS directory */
2059 dump_zap, /* ZFS master node */
2060 dump_zap, /* ZFS delete queue */
2061 dump_uint8, /* zvol object */
2062 dump_zap, /* zvol prop */
2063 dump_uint8, /* other uint8[] */
2064 dump_uint64, /* other uint64[] */
2065 dump_zap, /* other ZAP */
2066 dump_zap, /* persistent error log */
2067 dump_uint8, /* SPA history */
2068 dump_history_offsets, /* SPA history offsets */
2069 dump_zap, /* Pool properties */
2070 dump_zap, /* DSL permissions */
2071 dump_acl, /* ZFS ACL */
2072 dump_uint8, /* ZFS SYSACL */
2073 dump_none, /* FUID nvlist */
2074 dump_packed_nvlist, /* FUID nvlist size */
2075 dump_zap, /* DSL dataset next clones */
2076 dump_zap, /* DSL scrub queue */
2077 dump_zap, /* ZFS user/group/project used */
2078 dump_zap, /* ZFS user/group/project quota */
2079 dump_zap, /* snapshot refcount tags */
2080 dump_ddt_zap, /* DDT ZAP object */
2081 dump_zap, /* DDT statistics */
2082 dump_znode, /* SA object */
2083 dump_zap, /* SA Master Node */
2084 dump_sa_attrs, /* SA attribute registration */
2085 dump_sa_layouts, /* SA attribute layouts */
2086 dump_zap, /* DSL scrub translations */
2087 dump_none, /* fake dedup BP */
2088 dump_zap, /* deadlist */
2089 dump_none, /* deadlist hdr */
2090 dump_zap, /* dsl clones */
2091 dump_bpobj_subobjs, /* bpobj subobjs */
2092 dump_unknown, /* Unknown type, must be last */
2093 };
2094
2095 static void
2096 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header,
2097 uint64_t *dnode_slots_used)
2098 {
2099 dmu_buf_t *db = NULL;
2100 dmu_object_info_t doi;
2101 dnode_t *dn;
2102 boolean_t dnode_held = B_FALSE;
2103 void *bonus = NULL;
2104 size_t bsize = 0;
2105 char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32];
2106 char bonus_size[32];
2107 char aux[50];
2108 int error;
2109
2110 /* make sure nicenum has enough space */
2111 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ);
2112 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ);
2113 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
2114 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
2115 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ);
2116
2117 if (*print_header) {
2118 (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n",
2119 "Object", "lvl", "iblk", "dblk", "dsize", "dnsize",
2120 "lsize", "%full", "type");
2121 *print_header = 0;
2122 }
2123
2124 if (object == 0) {
2125 dn = DMU_META_DNODE(os);
2126 dmu_object_info_from_dnode(dn, &doi);
2127 } else {
2128 /*
2129 * Encrypted datasets will have sensitive bonus buffers
2130 * encrypted. Therefore we cannot hold the bonus buffer and
2131 * must hold the dnode itself instead.
2132 */
2133 error = dmu_object_info(os, object, &doi);
2134 if (error)
2135 fatal("dmu_object_info() failed, errno %u", error);
2136
2137 if (os->os_encrypted &&
2138 DMU_OT_IS_ENCRYPTED(doi.doi_bonus_type)) {
2139 error = dnode_hold(os, object, FTAG, &dn);
2140 if (error)
2141 fatal("dnode_hold() failed, errno %u", error);
2142 dnode_held = B_TRUE;
2143 } else {
2144 error = dmu_bonus_hold(os, object, FTAG, &db);
2145 if (error)
2146 fatal("dmu_bonus_hold(%llu) failed, errno %u",
2147 object, error);
2148 bonus = db->db_data;
2149 bsize = db->db_size;
2150 dn = DB_DNODE((dmu_buf_impl_t *)db);
2151 }
2152 }
2153
2154 if (dnode_slots_used)
2155 *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE;
2156
2157 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk));
2158 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk));
2159 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize));
2160 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize));
2161 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size));
2162 zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize));
2163 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count *
2164 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) /
2165 doi.doi_max_offset);
2166
2167 aux[0] = '\0';
2168
2169 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) {
2170 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux),
2171 " (K=%s)", ZDB_CHECKSUM_NAME(doi.doi_checksum));
2172 }
2173
2174 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) {
2175 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux),
2176 " (Z=%s)", ZDB_COMPRESS_NAME(doi.doi_compress));
2177 }
2178
2179 (void) printf("%10lld %3u %5s %5s %5s %6s %5s %6s %s%s\n",
2180 (u_longlong_t)object, doi.doi_indirection, iblk, dblk,
2181 asize, dnsize, lsize, fill, zdb_ot_name(doi.doi_type), aux);
2182
2183 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) {
2184 (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n",
2185 "", "", "", "", "", "", bonus_size, "bonus",
2186 zdb_ot_name(doi.doi_bonus_type));
2187 }
2188
2189 if (verbosity >= 4) {
2190 (void) printf("\tdnode flags: %s%s%s%s\n",
2191 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ?
2192 "USED_BYTES " : "",
2193 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ?
2194 "USERUSED_ACCOUNTED " : "",
2195 (dn->dn_phys->dn_flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) ?
2196 "USEROBJUSED_ACCOUNTED " : "",
2197 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ?
2198 "SPILL_BLKPTR" : "");
2199 (void) printf("\tdnode maxblkid: %llu\n",
2200 (longlong_t)dn->dn_phys->dn_maxblkid);
2201
2202 if (!dnode_held) {
2203 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os,
2204 object, bonus, bsize);
2205 } else {
2206 (void) printf("\t\t(bonus encrypted)\n");
2207 }
2208
2209 if (!os->os_encrypted || !DMU_OT_IS_ENCRYPTED(doi.doi_type)) {
2210 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object,
2211 NULL, 0);
2212 } else {
2213 (void) printf("\t\t(object encrypted)\n");
2214 }
2215
2216 *print_header = 1;
2217 }
2218
2219 if (verbosity >= 5)
2220 dump_indirect(dn);
2221
2222 if (verbosity >= 5) {
2223 /*
2224 * Report the list of segments that comprise the object.
2225 */
2226 uint64_t start = 0;
2227 uint64_t end;
2228 uint64_t blkfill = 1;
2229 int minlvl = 1;
2230
2231 if (dn->dn_type == DMU_OT_DNODE) {
2232 minlvl = 0;
2233 blkfill = DNODES_PER_BLOCK;
2234 }
2235
2236 for (;;) {
2237 char segsize[32];
2238 /* make sure nicenum has enough space */
2239 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ);
2240 error = dnode_next_offset(dn,
2241 0, &start, minlvl, blkfill, 0);
2242 if (error)
2243 break;
2244 end = start;
2245 error = dnode_next_offset(dn,
2246 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0);
2247 zdb_nicenum(end - start, segsize, sizeof (segsize));
2248 (void) printf("\t\tsegment [%016llx, %016llx)"
2249 " size %5s\n", (u_longlong_t)start,
2250 (u_longlong_t)end, segsize);
2251 if (error)
2252 break;
2253 start = end;
2254 }
2255 }
2256
2257 if (db != NULL)
2258 dmu_buf_rele(db, FTAG);
2259 if (dnode_held)
2260 dnode_rele(dn, FTAG);
2261 }
2262
2263 static const char *objset_types[DMU_OST_NUMTYPES] = {
2264 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" };
2265
2266 static void
2267 dump_dir(objset_t *os)
2268 {
2269 dmu_objset_stats_t dds;
2270 uint64_t object, object_count;
2271 uint64_t refdbytes, usedobjs, scratch;
2272 char numbuf[32];
2273 char blkbuf[BP_SPRINTF_LEN + 20];
2274 char osname[ZFS_MAX_DATASET_NAME_LEN];
2275 const char *type = "UNKNOWN";
2276 int verbosity = dump_opt['d'];
2277 int print_header = 1;
2278 unsigned i;
2279 int error;
2280 uint64_t total_slots_used = 0;
2281 uint64_t max_slot_used = 0;
2282 uint64_t dnode_slots;
2283
2284 /* make sure nicenum has enough space */
2285 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ);
2286
2287 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
2288 dmu_objset_fast_stat(os, &dds);
2289 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
2290
2291 if (dds.dds_type < DMU_OST_NUMTYPES)
2292 type = objset_types[dds.dds_type];
2293
2294 if (dds.dds_type == DMU_OST_META) {
2295 dds.dds_creation_txg = TXG_INITIAL;
2296 usedobjs = BP_GET_FILL(os->os_rootbp);
2297 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)->
2298 dd_used_bytes;
2299 } else {
2300 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
2301 }
2302
2303 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp));
2304
2305 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf));
2306
2307 if (verbosity >= 4) {
2308 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp ");
2309 (void) snprintf_blkptr(blkbuf + strlen(blkbuf),
2310 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp);
2311 } else {
2312 blkbuf[0] = '\0';
2313 }
2314
2315 dmu_objset_name(os, osname);
2316
2317 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, "
2318 "%s, %llu objects%s\n",
2319 osname, type, (u_longlong_t)dmu_objset_id(os),
2320 (u_longlong_t)dds.dds_creation_txg,
2321 numbuf, (u_longlong_t)usedobjs, blkbuf);
2322
2323 if (zopt_objects != 0) {
2324 for (i = 0; i < zopt_objects; i++)
2325 dump_object(os, zopt_object[i], verbosity,
2326 &print_header, NULL);
2327 (void) printf("\n");
2328 return;
2329 }
2330
2331 if (dump_opt['i'] != 0 || verbosity >= 2)
2332 dump_intent_log(dmu_objset_zil(os));
2333
2334 if (dmu_objset_ds(os) != NULL) {
2335 dsl_dataset_t *ds = dmu_objset_ds(os);
2336 dump_deadlist(&ds->ds_deadlist);
2337
2338 if (dsl_dataset_remap_deadlist_exists(ds)) {
2339 (void) printf("ds_remap_deadlist:\n");
2340 dump_deadlist(&ds->ds_remap_deadlist);
2341 }
2342 }
2343
2344 if (verbosity < 2)
2345 return;
2346
2347 if (BP_IS_HOLE(os->os_rootbp))
2348 return;
2349
2350 dump_object(os, 0, verbosity, &print_header, NULL);
2351 object_count = 0;
2352 if (DMU_USERUSED_DNODE(os) != NULL &&
2353 DMU_USERUSED_DNODE(os)->dn_type != 0) {
2354 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header,
2355 NULL);
2356 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header,
2357 NULL);
2358 }
2359
2360 if (DMU_PROJECTUSED_DNODE(os) != NULL &&
2361 DMU_PROJECTUSED_DNODE(os)->dn_type != 0)
2362 dump_object(os, DMU_PROJECTUSED_OBJECT, verbosity,
2363 &print_header, NULL);
2364
2365 object = 0;
2366 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) {
2367 dump_object(os, object, verbosity, &print_header, &dnode_slots);
2368 object_count++;
2369 total_slots_used += dnode_slots;
2370 max_slot_used = object + dnode_slots - 1;
2371 }
2372
2373 (void) printf("\n");
2374
2375 (void) printf(" Dnode slots:\n");
2376 (void) printf("\tTotal used: %10llu\n",
2377 (u_longlong_t)total_slots_used);
2378 (void) printf("\tMax used: %10llu\n",
2379 (u_longlong_t)max_slot_used);
2380 (void) printf("\tPercent empty: %10lf\n",
2381 (double)(max_slot_used - total_slots_used)*100 /
2382 (double)max_slot_used);
2383
2384 ASSERT3U(object_count, ==, usedobjs);
2385
2386 (void) printf("\n");
2387
2388 if (error != ESRCH) {
2389 (void) fprintf(stderr, "dmu_object_next() = %d\n", error);
2390 abort();
2391 }
2392 if (leaked_objects != 0) {
2393 (void) printf("%d potentially leaked objects detected\n",
2394 leaked_objects);
2395 leaked_objects = 0;
2396 }
2397 }
2398
2399 static void
2400 dump_uberblock(uberblock_t *ub, const char *header, const char *footer)
2401 {
2402 time_t timestamp = ub->ub_timestamp;
2403
2404 (void) printf("%s", header ? header : "");
2405 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic);
2406 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version);
2407 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg);
2408 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum);
2409 (void) printf("\ttimestamp = %llu UTC = %s",
2410 (u_longlong_t)ub->ub_timestamp, asctime(localtime(&timestamp)));
2411
2412 (void) printf("\tmmp_magic = %016llx\n",
2413 (u_longlong_t)ub->ub_mmp_magic);
2414 if (ub->ub_mmp_magic == MMP_MAGIC)
2415 (void) printf("\tmmp_delay = %0llu\n",
2416 (u_longlong_t)ub->ub_mmp_delay);
2417
2418 if (dump_opt['u'] >= 4) {
2419 char blkbuf[BP_SPRINTF_LEN];
2420 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp);
2421 (void) printf("\trootbp = %s\n", blkbuf);
2422 }
2423 (void) printf("%s", footer ? footer : "");
2424 }
2425
2426 static void
2427 dump_config(spa_t *spa)
2428 {
2429 dmu_buf_t *db;
2430 size_t nvsize = 0;
2431 int error = 0;
2432
2433
2434 error = dmu_bonus_hold(spa->spa_meta_objset,
2435 spa->spa_config_object, FTAG, &db);
2436
2437 if (error == 0) {
2438 nvsize = *(uint64_t *)db->db_data;
2439 dmu_buf_rele(db, FTAG);
2440
2441 (void) printf("\nMOS Configuration:\n");
2442 dump_packed_nvlist(spa->spa_meta_objset,
2443 spa->spa_config_object, (void *)&nvsize, 1);
2444 } else {
2445 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d",
2446 (u_longlong_t)spa->spa_config_object, error);
2447 }
2448 }
2449
2450 static void
2451 dump_cachefile(const char *cachefile)
2452 {
2453 int fd;
2454 struct stat64 statbuf;
2455 char *buf;
2456 nvlist_t *config;
2457
2458 if ((fd = open64(cachefile, O_RDONLY)) < 0) {
2459 (void) printf("cannot open '%s': %s\n", cachefile,
2460 strerror(errno));
2461 exit(1);
2462 }
2463
2464 if (fstat64(fd, &statbuf) != 0) {
2465 (void) printf("failed to stat '%s': %s\n", cachefile,
2466 strerror(errno));
2467 exit(1);
2468 }
2469
2470 if ((buf = malloc(statbuf.st_size)) == NULL) {
2471 (void) fprintf(stderr, "failed to allocate %llu bytes\n",
2472 (u_longlong_t)statbuf.st_size);
2473 exit(1);
2474 }
2475
2476 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) {
2477 (void) fprintf(stderr, "failed to read %llu bytes\n",
2478 (u_longlong_t)statbuf.st_size);
2479 exit(1);
2480 }
2481
2482 (void) close(fd);
2483
2484 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) {
2485 (void) fprintf(stderr, "failed to unpack nvlist\n");
2486 exit(1);
2487 }
2488
2489 free(buf);
2490
2491 dump_nvlist(config, 0);
2492
2493 nvlist_free(config);
2494 }
2495
2496 /*
2497 * ZFS label nvlist stats
2498 */
2499 typedef struct zdb_nvl_stats {
2500 int zns_list_count;
2501 int zns_leaf_count;
2502 size_t zns_leaf_largest;
2503 size_t zns_leaf_total;
2504 nvlist_t *zns_string;
2505 nvlist_t *zns_uint64;
2506 nvlist_t *zns_boolean;
2507 } zdb_nvl_stats_t;
2508
2509 static void
2510 collect_nvlist_stats(nvlist_t *nvl, zdb_nvl_stats_t *stats)
2511 {
2512 nvlist_t *list, **array;
2513 nvpair_t *nvp = NULL;
2514 char *name;
2515 uint_t i, items;
2516
2517 stats->zns_list_count++;
2518
2519 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) {
2520 name = nvpair_name(nvp);
2521
2522 switch (nvpair_type(nvp)) {
2523 case DATA_TYPE_STRING:
2524 fnvlist_add_string(stats->zns_string, name,
2525 fnvpair_value_string(nvp));
2526 break;
2527 case DATA_TYPE_UINT64:
2528 fnvlist_add_uint64(stats->zns_uint64, name,
2529 fnvpair_value_uint64(nvp));
2530 break;
2531 case DATA_TYPE_BOOLEAN:
2532 fnvlist_add_boolean(stats->zns_boolean, name);
2533 break;
2534 case DATA_TYPE_NVLIST:
2535 if (nvpair_value_nvlist(nvp, &list) == 0)
2536 collect_nvlist_stats(list, stats);
2537 break;
2538 case DATA_TYPE_NVLIST_ARRAY:
2539 if (nvpair_value_nvlist_array(nvp, &array, &items) != 0)
2540 break;
2541
2542 for (i = 0; i < items; i++) {
2543 collect_nvlist_stats(array[i], stats);
2544
2545 /* collect stats on leaf vdev */
2546 if (strcmp(name, "children") == 0) {
2547 size_t size;
2548
2549 (void) nvlist_size(array[i], &size,
2550 NV_ENCODE_XDR);
2551 stats->zns_leaf_total += size;
2552 if (size > stats->zns_leaf_largest)
2553 stats->zns_leaf_largest = size;
2554 stats->zns_leaf_count++;
2555 }
2556 }
2557 break;
2558 default:
2559 (void) printf("skip type %d!\n", (int)nvpair_type(nvp));
2560 }
2561 }
2562 }
2563
2564 static void
2565 dump_nvlist_stats(nvlist_t *nvl, size_t cap)
2566 {
2567 zdb_nvl_stats_t stats = { 0 };
2568 size_t size, sum = 0, total;
2569 size_t noise;
2570
2571 /* requires nvlist with non-unique names for stat collection */
2572 VERIFY0(nvlist_alloc(&stats.zns_string, 0, 0));
2573 VERIFY0(nvlist_alloc(&stats.zns_uint64, 0, 0));
2574 VERIFY0(nvlist_alloc(&stats.zns_boolean, 0, 0));
2575 VERIFY0(nvlist_size(stats.zns_boolean, &noise, NV_ENCODE_XDR));
2576
2577 (void) printf("\n\nZFS Label NVList Config Stats:\n");
2578
2579 VERIFY0(nvlist_size(nvl, &total, NV_ENCODE_XDR));
2580 (void) printf(" %d bytes used, %d bytes free (using %4.1f%%)\n\n",
2581 (int)total, (int)(cap - total), 100.0 * total / cap);
2582
2583 collect_nvlist_stats(nvl, &stats);
2584
2585 VERIFY0(nvlist_size(stats.zns_uint64, &size, NV_ENCODE_XDR));
2586 size -= noise;
2587 sum += size;
2588 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "integers:",
2589 (int)fnvlist_num_pairs(stats.zns_uint64),
2590 (int)size, 100.0 * size / total);
2591
2592 VERIFY0(nvlist_size(stats.zns_string, &size, NV_ENCODE_XDR));
2593 size -= noise;
2594 sum += size;
2595 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "strings:",
2596 (int)fnvlist_num_pairs(stats.zns_string),
2597 (int)size, 100.0 * size / total);
2598
2599 VERIFY0(nvlist_size(stats.zns_boolean, &size, NV_ENCODE_XDR));
2600 size -= noise;
2601 sum += size;
2602 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "booleans:",
2603 (int)fnvlist_num_pairs(stats.zns_boolean),
2604 (int)size, 100.0 * size / total);
2605
2606 size = total - sum; /* treat remainder as nvlist overhead */
2607 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n\n", "nvlists:",
2608 stats.zns_list_count, (int)size, 100.0 * size / total);
2609
2610 if (stats.zns_leaf_count > 0) {
2611 size_t average = stats.zns_leaf_total / stats.zns_leaf_count;
2612
2613 (void) printf("%12s %4d %6d bytes average\n", "leaf vdevs:",
2614 stats.zns_leaf_count, (int)average);
2615 (void) printf("%24d bytes largest\n",
2616 (int)stats.zns_leaf_largest);
2617
2618 if (dump_opt['l'] >= 3 && average > 0)
2619 (void) printf(" space for %d additional leaf vdevs\n",
2620 (int)((cap - total) / average));
2621 }
2622 (void) printf("\n");
2623
2624 nvlist_free(stats.zns_string);
2625 nvlist_free(stats.zns_uint64);
2626 nvlist_free(stats.zns_boolean);
2627 }
2628
2629 typedef struct cksum_record {
2630 zio_cksum_t cksum;
2631 boolean_t labels[VDEV_LABELS];
2632 avl_node_t link;
2633 } cksum_record_t;
2634
2635 static int
2636 cksum_record_compare(const void *x1, const void *x2)
2637 {
2638 const cksum_record_t *l = (cksum_record_t *)x1;
2639 const cksum_record_t *r = (cksum_record_t *)x2;
2640 int arraysize = ARRAY_SIZE(l->cksum.zc_word);
2641 int difference;
2642
2643 for (int i = 0; i < arraysize; i++) {
2644 difference = AVL_CMP(l->cksum.zc_word[i], r->cksum.zc_word[i]);
2645 if (difference)
2646 break;
2647 }
2648
2649 return (difference);
2650 }
2651
2652 static cksum_record_t *
2653 cksum_record_alloc(zio_cksum_t *cksum, int l)
2654 {
2655 cksum_record_t *rec;
2656
2657 rec = umem_zalloc(sizeof (*rec), UMEM_NOFAIL);
2658 rec->cksum = *cksum;
2659 rec->labels[l] = B_TRUE;
2660
2661 return (rec);
2662 }
2663
2664 static cksum_record_t *
2665 cksum_record_lookup(avl_tree_t *tree, zio_cksum_t *cksum)
2666 {
2667 cksum_record_t lookup = { .cksum = *cksum };
2668 avl_index_t where;
2669
2670 return (avl_find(tree, &lookup, &where));
2671 }
2672
2673 static cksum_record_t *
2674 cksum_record_insert(avl_tree_t *tree, zio_cksum_t *cksum, int l)
2675 {
2676 cksum_record_t *rec;
2677
2678 rec = cksum_record_lookup(tree, cksum);
2679 if (rec) {
2680 rec->labels[l] = B_TRUE;
2681 } else {
2682 rec = cksum_record_alloc(cksum, l);
2683 avl_add(tree, rec);
2684 }
2685
2686 return (rec);
2687 }
2688
2689 static int
2690 first_label(cksum_record_t *rec)
2691 {
2692 for (int i = 0; i < VDEV_LABELS; i++)
2693 if (rec->labels[i])
2694 return (i);
2695
2696 return (-1);
2697 }
2698
2699 static void
2700 print_label_numbers(char *prefix, cksum_record_t *rec)
2701 {
2702 printf("%s", prefix);
2703 for (int i = 0; i < VDEV_LABELS; i++)
2704 if (rec->labels[i] == B_TRUE)
2705 printf("%d ", i);
2706 printf("\n");
2707 }
2708
2709 #define MAX_UBERBLOCK_COUNT (VDEV_UBERBLOCK_RING >> UBERBLOCK_SHIFT)
2710
2711 typedef struct label {
2712 vdev_label_t label;
2713 nvlist_t *config_nv;
2714 cksum_record_t *config;
2715 cksum_record_t *uberblocks[MAX_UBERBLOCK_COUNT];
2716 boolean_t header_printed;
2717 boolean_t read_failed;
2718 } label_t;
2719
2720 static void
2721 print_label_header(label_t *label, int l)
2722 {
2723
2724 if (dump_opt['q'])
2725 return;
2726
2727 if (label->header_printed == B_TRUE)
2728 return;
2729
2730 (void) printf("------------------------------------\n");
2731 (void) printf("LABEL %d\n", l);
2732 (void) printf("------------------------------------\n");
2733
2734 label->header_printed = B_TRUE;
2735 }
2736
2737 static void
2738 dump_config_from_label(label_t *label, size_t buflen, int l)
2739 {
2740 if (dump_opt['q'])
2741 return;
2742
2743 if ((dump_opt['l'] < 3) && (first_label(label->config) != l))
2744 return;
2745
2746 print_label_header(label, l);
2747 dump_nvlist(label->config_nv, 4);
2748 print_label_numbers(" labels = ", label->config);
2749
2750 if (dump_opt['l'] >= 2)
2751 dump_nvlist_stats(label->config_nv, buflen);
2752 }
2753
2754 #define ZDB_MAX_UB_HEADER_SIZE 32
2755
2756 static void
2757 dump_label_uberblocks(label_t *label, uint64_t ashift, int label_num)
2758 {
2759
2760 vdev_t vd;
2761 char header[ZDB_MAX_UB_HEADER_SIZE];
2762
2763 vd.vdev_ashift = ashift;
2764 vd.vdev_top = &vd;
2765
2766 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) {
2767 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i);
2768 uberblock_t *ub = (void *)((char *)&label->label + uoff);
2769 cksum_record_t *rec = label->uberblocks[i];
2770
2771 if (rec == NULL) {
2772 if (dump_opt['u'] >= 2) {
2773 print_label_header(label, label_num);
2774 (void) printf(" Uberblock[%d] invalid\n", i);
2775 }
2776 continue;
2777 }
2778
2779 if ((dump_opt['u'] < 3) && (first_label(rec) != label_num))
2780 continue;
2781
2782 if ((dump_opt['u'] < 4) &&
2783 (ub->ub_mmp_magic == MMP_MAGIC) && ub->ub_mmp_delay &&
2784 (i >= VDEV_UBERBLOCK_COUNT(&vd) - MMP_BLOCKS_PER_LABEL))
2785 continue;
2786
2787 print_label_header(label, label_num);
2788 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE,
2789 " Uberblock[%d]\n", i);
2790 dump_uberblock(ub, header, "");
2791 print_label_numbers(" labels = ", rec);
2792 }
2793 }
2794
2795 static char curpath[PATH_MAX];
2796
2797 /*
2798 * Iterate through the path components, recursively passing
2799 * current one's obj and remaining path until we find the obj
2800 * for the last one.
2801 */
2802 static int
2803 dump_path_impl(objset_t *os, uint64_t obj, char *name)
2804 {
2805 int err;
2806 int header = 1;
2807 uint64_t child_obj;
2808 char *s;
2809 dmu_buf_t *db;
2810 dmu_object_info_t doi;
2811
2812 if ((s = strchr(name, '/')) != NULL)
2813 *s = '\0';
2814 err = zap_lookup(os, obj, name, 8, 1, &child_obj);
2815
2816 (void) strlcat(curpath, name, sizeof (curpath));
2817
2818 if (err != 0) {
2819 (void) fprintf(stderr, "failed to lookup %s: %s\n",
2820 curpath, strerror(err));
2821 return (err);
2822 }
2823
2824 child_obj = ZFS_DIRENT_OBJ(child_obj);
2825 err = sa_buf_hold(os, child_obj, FTAG, &db);
2826 if (err != 0) {
2827 (void) fprintf(stderr,
2828 "failed to get SA dbuf for obj %llu: %s\n",
2829 (u_longlong_t)child_obj, strerror(err));
2830 return (EINVAL);
2831 }
2832 dmu_object_info_from_db(db, &doi);
2833 sa_buf_rele(db, FTAG);
2834
2835 if (doi.doi_bonus_type != DMU_OT_SA &&
2836 doi.doi_bonus_type != DMU_OT_ZNODE) {
2837 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n",
2838 doi.doi_bonus_type, (u_longlong_t)child_obj);
2839 return (EINVAL);
2840 }
2841
2842 if (dump_opt['v'] > 6) {
2843 (void) printf("obj=%llu %s type=%d bonustype=%d\n",
2844 (u_longlong_t)child_obj, curpath, doi.doi_type,
2845 doi.doi_bonus_type);
2846 }
2847
2848 (void) strlcat(curpath, "/", sizeof (curpath));
2849
2850 switch (doi.doi_type) {
2851 case DMU_OT_DIRECTORY_CONTENTS:
2852 if (s != NULL && *(s + 1) != '\0')
2853 return (dump_path_impl(os, child_obj, s + 1));
2854 /*FALLTHROUGH*/
2855 case DMU_OT_PLAIN_FILE_CONTENTS:
2856 dump_object(os, child_obj, dump_opt['v'], &header, NULL);
2857 return (0);
2858 default:
2859 (void) fprintf(stderr, "object %llu has non-file/directory "
2860 "type %d\n", (u_longlong_t)obj, doi.doi_type);
2861 break;
2862 }
2863
2864 return (EINVAL);
2865 }
2866
2867 /*
2868 * Dump the blocks for the object specified by path inside the dataset.
2869 */
2870 static int
2871 dump_path(char *ds, char *path)
2872 {
2873 int err;
2874 objset_t *os;
2875 uint64_t root_obj;
2876
2877 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os);
2878 if (err != 0)
2879 return (err);
2880
2881 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj);
2882 if (err != 0) {
2883 (void) fprintf(stderr, "can't lookup root znode: %s\n",
2884 strerror(err));
2885 dmu_objset_disown(os, B_FALSE, FTAG);
2886 return (EINVAL);
2887 }
2888
2889 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds);
2890
2891 err = dump_path_impl(os, root_obj, path);
2892
2893 close_objset(os, FTAG);
2894 return (err);
2895 }
2896
2897 static int
2898 dump_label(const char *dev)
2899 {
2900 char path[MAXPATHLEN];
2901 label_t labels[VDEV_LABELS];
2902 uint64_t psize, ashift;
2903 struct stat64 statbuf;
2904 boolean_t config_found = B_FALSE;
2905 boolean_t error = B_FALSE;
2906 avl_tree_t config_tree;
2907 avl_tree_t uberblock_tree;
2908 void *node, *cookie;
2909 int fd;
2910
2911 bzero(labels, sizeof (labels));
2912
2913 /*
2914 * Check if we were given absolute path and use it as is.
2915 * Otherwise if the provided vdev name doesn't point to a file,
2916 * try prepending expected disk paths and partition numbers.
2917 */
2918 (void) strlcpy(path, dev, sizeof (path));
2919 if (dev[0] != '/' && stat64(path, &statbuf) != 0) {
2920 int error;
2921
2922 error = zfs_resolve_shortname(dev, path, MAXPATHLEN);
2923 if (error == 0 && zfs_dev_is_whole_disk(path)) {
2924 if (zfs_append_partition(path, MAXPATHLEN) == -1)
2925 error = ENOENT;
2926 }
2927
2928 if (error || (stat64(path, &statbuf) != 0)) {
2929 (void) printf("failed to find device %s, try "
2930 "specifying absolute path instead\n", dev);
2931 return (1);
2932 }
2933 }
2934
2935 if ((fd = open64(path, O_RDONLY)) < 0) {
2936 (void) printf("cannot open '%s': %s\n", path, strerror(errno));
2937 exit(1);
2938 }
2939
2940 if (fstat64_blk(fd, &statbuf) != 0) {
2941 (void) printf("failed to stat '%s': %s\n", path,
2942 strerror(errno));
2943 (void) close(fd);
2944 exit(1);
2945 }
2946
2947 if (S_ISBLK(statbuf.st_mode) && ioctl(fd, BLKFLSBUF) != 0)
2948 (void) printf("failed to invalidate cache '%s' : %s\n", path,
2949 strerror(errno));
2950
2951 avl_create(&config_tree, cksum_record_compare,
2952 sizeof (cksum_record_t), offsetof(cksum_record_t, link));
2953 avl_create(&uberblock_tree, cksum_record_compare,
2954 sizeof (cksum_record_t), offsetof(cksum_record_t, link));
2955
2956 psize = statbuf.st_size;
2957 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t));
2958 ashift = SPA_MINBLOCKSHIFT;
2959
2960 /*
2961 * 1. Read the label from disk
2962 * 2. Unpack the configuration and insert in config tree.
2963 * 3. Traverse all uberblocks and insert in uberblock tree.
2964 */
2965 for (int l = 0; l < VDEV_LABELS; l++) {
2966 label_t *label = &labels[l];
2967 char *buf = label->label.vl_vdev_phys.vp_nvlist;
2968 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist);
2969 nvlist_t *config;
2970 cksum_record_t *rec;
2971 zio_cksum_t cksum;
2972 vdev_t vd;
2973
2974 if (pread64(fd, &label->label, sizeof (label->label),
2975 vdev_label_offset(psize, l, 0)) != sizeof (label->label)) {
2976 if (!dump_opt['q'])
2977 (void) printf("failed to read label %d\n", l);
2978 label->read_failed = B_TRUE;
2979 error = B_TRUE;
2980 continue;
2981 }
2982
2983 label->read_failed = B_FALSE;
2984
2985 if (nvlist_unpack(buf, buflen, &config, 0) == 0) {
2986 nvlist_t *vdev_tree = NULL;
2987 size_t size;
2988
2989 if ((nvlist_lookup_nvlist(config,
2990 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) ||
2991 (nvlist_lookup_uint64(vdev_tree,
2992 ZPOOL_CONFIG_ASHIFT, &ashift) != 0))
2993 ashift = SPA_MINBLOCKSHIFT;
2994
2995 if (nvlist_size(config, &size, NV_ENCODE_XDR) != 0)
2996 size = buflen;
2997
2998 fletcher_4_native_varsize(buf, size, &cksum);
2999 rec = cksum_record_insert(&config_tree, &cksum, l);
3000
3001 label->config = rec;
3002 label->config_nv = config;
3003 config_found = B_TRUE;
3004 } else {
3005 error = B_TRUE;
3006 }
3007
3008 vd.vdev_ashift = ashift;
3009 vd.vdev_top = &vd;
3010
3011 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) {
3012 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i);
3013 uberblock_t *ub = (void *)((char *)label + uoff);
3014
3015 if (uberblock_verify(ub))
3016 continue;
3017
3018 fletcher_4_native_varsize(ub, sizeof (*ub), &cksum);
3019 rec = cksum_record_insert(&uberblock_tree, &cksum, l);
3020
3021 label->uberblocks[i] = rec;
3022 }
3023 }
3024
3025 /*
3026 * Dump the label and uberblocks.
3027 */
3028 for (int l = 0; l < VDEV_LABELS; l++) {
3029 label_t *label = &labels[l];
3030 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist);
3031
3032 if (label->read_failed == B_TRUE)
3033 continue;
3034
3035 if (label->config_nv) {
3036 dump_config_from_label(label, buflen, l);
3037 } else {
3038 if (!dump_opt['q'])
3039 (void) printf("failed to unpack label %d\n", l);
3040 }
3041
3042 if (dump_opt['u'])
3043 dump_label_uberblocks(label, ashift, l);
3044
3045 nvlist_free(label->config_nv);
3046 }
3047
3048 cookie = NULL;
3049 while ((node = avl_destroy_nodes(&config_tree, &cookie)) != NULL)
3050 umem_free(node, sizeof (cksum_record_t));
3051
3052 cookie = NULL;
3053 while ((node = avl_destroy_nodes(&uberblock_tree, &cookie)) != NULL)
3054 umem_free(node, sizeof (cksum_record_t));
3055
3056 avl_destroy(&config_tree);
3057 avl_destroy(&uberblock_tree);
3058
3059 (void) close(fd);
3060
3061 return (config_found == B_FALSE ? 2 :
3062 (error == B_TRUE ? 1 : 0));
3063 }
3064
3065 static uint64_t dataset_feature_count[SPA_FEATURES];
3066 static uint64_t remap_deadlist_count = 0;
3067
3068 /*ARGSUSED*/
3069 static int
3070 dump_one_dir(const char *dsname, void *arg)
3071 {
3072 int error;
3073 objset_t *os;
3074 spa_feature_t f;
3075
3076 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os);
3077 if (error != 0)
3078 return (0);
3079
3080 for (f = 0; f < SPA_FEATURES; f++) {
3081 if (!dmu_objset_ds(os)->ds_feature_inuse[f])
3082 continue;
3083 ASSERT(spa_feature_table[f].fi_flags &
3084 ZFEATURE_FLAG_PER_DATASET);
3085 dataset_feature_count[f]++;
3086 }
3087
3088 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) {
3089 remap_deadlist_count++;
3090 }
3091
3092 dump_dir(os);
3093 close_objset(os, FTAG);
3094 fuid_table_destroy();
3095 return (0);
3096 }
3097
3098 /*
3099 * Block statistics.
3100 */
3101 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2)
3102 typedef struct zdb_blkstats {
3103 uint64_t zb_asize;
3104 uint64_t zb_lsize;
3105 uint64_t zb_psize;
3106 uint64_t zb_count;
3107 uint64_t zb_gangs;
3108 uint64_t zb_ditto_samevdev;
3109 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE];
3110 } zdb_blkstats_t;
3111
3112 /*
3113 * Extended object types to report deferred frees and dedup auto-ditto blocks.
3114 */
3115 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0)
3116 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1)
3117 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2)
3118 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3)
3119
3120 static const char *zdb_ot_extname[] = {
3121 "deferred free",
3122 "dedup ditto",
3123 "other",
3124 "Total",
3125 };
3126
3127 #define ZB_TOTAL DN_MAX_LEVELS
3128
3129 typedef struct zdb_cb {
3130 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1];
3131 uint64_t zcb_removing_size;
3132 uint64_t zcb_dedup_asize;
3133 uint64_t zcb_dedup_blocks;
3134 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES];
3135 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES]
3136 [BPE_PAYLOAD_SIZE + 1];
3137 uint64_t zcb_start;
3138 hrtime_t zcb_lastprint;
3139 uint64_t zcb_totalasize;
3140 uint64_t zcb_errors[256];
3141 int zcb_readfails;
3142 int zcb_haderrors;
3143 spa_t *zcb_spa;
3144 uint32_t **zcb_vd_obsolete_counts;
3145 } zdb_cb_t;
3146
3147 static void
3148 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp,
3149 dmu_object_type_t type)
3150 {
3151 uint64_t refcnt = 0;
3152 int i;
3153
3154 ASSERT(type < ZDB_OT_TOTAL);
3155
3156 if (zilog && zil_bp_tree_add(zilog, bp) != 0)
3157 return;
3158
3159 for (i = 0; i < 4; i++) {
3160 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL;
3161 int t = (i & 1) ? type : ZDB_OT_TOTAL;
3162 int equal;
3163 zdb_blkstats_t *zb = &zcb->zcb_type[l][t];
3164
3165 zb->zb_asize += BP_GET_ASIZE(bp);
3166 zb->zb_lsize += BP_GET_LSIZE(bp);
3167 zb->zb_psize += BP_GET_PSIZE(bp);
3168 zb->zb_count++;
3169
3170 /*
3171 * The histogram is only big enough to record blocks up to
3172 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last,
3173 * "other", bucket.
3174 */
3175 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT;
3176 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1);
3177 zb->zb_psize_histogram[idx]++;
3178
3179 zb->zb_gangs += BP_COUNT_GANG(bp);
3180
3181 switch (BP_GET_NDVAS(bp)) {
3182 case 2:
3183 if (DVA_GET_VDEV(&bp->blk_dva[0]) ==
3184 DVA_GET_VDEV(&bp->blk_dva[1]))
3185 zb->zb_ditto_samevdev++;
3186 break;
3187 case 3:
3188 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) ==
3189 DVA_GET_VDEV(&bp->blk_dva[1])) +
3190 (DVA_GET_VDEV(&bp->blk_dva[0]) ==
3191 DVA_GET_VDEV(&bp->blk_dva[2])) +
3192 (DVA_GET_VDEV(&bp->blk_dva[1]) ==
3193 DVA_GET_VDEV(&bp->blk_dva[2]));
3194 if (equal != 0)
3195 zb->zb_ditto_samevdev++;
3196 break;
3197 }
3198
3199 }
3200
3201 if (BP_IS_EMBEDDED(bp)) {
3202 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++;
3203 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)]
3204 [BPE_GET_PSIZE(bp)]++;
3205 return;
3206 }
3207
3208 if (dump_opt['L'])
3209 return;
3210
3211 if (BP_GET_DEDUP(bp)) {
3212 ddt_t *ddt;
3213 ddt_entry_t *dde;
3214
3215 ddt = ddt_select(zcb->zcb_spa, bp);
3216 ddt_enter(ddt);
3217 dde = ddt_lookup(ddt, bp, B_FALSE);
3218
3219 if (dde == NULL) {
3220 refcnt = 0;
3221 } else {
3222 ddt_phys_t *ddp = ddt_phys_select(dde, bp);
3223 ddt_phys_decref(ddp);
3224 refcnt = ddp->ddp_refcnt;
3225 if (ddt_phys_total_refcnt(dde) == 0)
3226 ddt_remove(ddt, dde);
3227 }
3228 ddt_exit(ddt);
3229 }
3230
3231 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa,
3232 refcnt ? 0 : spa_first_txg(zcb->zcb_spa),
3233 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0);
3234 }
3235
3236 static void
3237 zdb_blkptr_done(zio_t *zio)
3238 {
3239 spa_t *spa = zio->io_spa;
3240 blkptr_t *bp = zio->io_bp;
3241 int ioerr = zio->io_error;
3242 zdb_cb_t *zcb = zio->io_private;
3243 zbookmark_phys_t *zb = &zio->io_bookmark;
3244
3245 abd_free(zio->io_abd);
3246
3247 mutex_enter(&spa->spa_scrub_lock);
3248 spa->spa_load_verify_ios--;
3249 cv_broadcast(&spa->spa_scrub_io_cv);
3250
3251 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) {
3252 char blkbuf[BP_SPRINTF_LEN];
3253
3254 zcb->zcb_haderrors = 1;
3255 zcb->zcb_errors[ioerr]++;
3256
3257 if (dump_opt['b'] >= 2)
3258 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3259 else
3260 blkbuf[0] = '\0';
3261
3262 (void) printf("zdb_blkptr_cb: "
3263 "Got error %d reading "
3264 "<%llu, %llu, %lld, %llx> %s -- skipping\n",
3265 ioerr,
3266 (u_longlong_t)zb->zb_objset,
3267 (u_longlong_t)zb->zb_object,
3268 (u_longlong_t)zb->zb_level,
3269 (u_longlong_t)zb->zb_blkid,
3270 blkbuf);
3271 }
3272 mutex_exit(&spa->spa_scrub_lock);
3273 }
3274
3275 static int
3276 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
3277 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
3278 {
3279 zdb_cb_t *zcb = arg;
3280 dmu_object_type_t type;
3281 boolean_t is_metadata;
3282
3283 if (bp == NULL)
3284 return (0);
3285
3286 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) {
3287 char blkbuf[BP_SPRINTF_LEN];
3288 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3289 (void) printf("objset %llu object %llu "
3290 "level %lld offset 0x%llx %s\n",
3291 (u_longlong_t)zb->zb_objset,
3292 (u_longlong_t)zb->zb_object,
3293 (longlong_t)zb->zb_level,
3294 (u_longlong_t)blkid2offset(dnp, bp, zb),
3295 blkbuf);
3296 }
3297
3298 if (BP_IS_HOLE(bp))
3299 return (0);
3300
3301 type = BP_GET_TYPE(bp);
3302
3303 zdb_count_block(zcb, zilog, bp,
3304 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type);
3305
3306 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type));
3307
3308 if (!BP_IS_EMBEDDED(bp) &&
3309 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) {
3310 size_t size = BP_GET_PSIZE(bp);
3311 abd_t *abd = abd_alloc(size, B_FALSE);
3312 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW;
3313
3314 /* If it's an intent log block, failure is expected. */
3315 if (zb->zb_level == ZB_ZIL_LEVEL)
3316 flags |= ZIO_FLAG_SPECULATIVE;
3317
3318 mutex_enter(&spa->spa_scrub_lock);
3319 while (spa->spa_load_verify_ios > max_inflight)
3320 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock);
3321 spa->spa_load_verify_ios++;
3322 mutex_exit(&spa->spa_scrub_lock);
3323
3324 zio_nowait(zio_read(NULL, spa, bp, abd, size,
3325 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb));
3326 }
3327
3328 zcb->zcb_readfails = 0;
3329
3330 /* only call gethrtime() every 100 blocks */
3331 static int iters;
3332 if (++iters > 100)
3333 iters = 0;
3334 else
3335 return (0);
3336
3337 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) {
3338 uint64_t now = gethrtime();
3339 char buf[10];
3340 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize;
3341 int kb_per_sec =
3342 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000));
3343 int sec_remaining =
3344 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec;
3345
3346 /* make sure nicenum has enough space */
3347 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ);
3348
3349 zfs_nicebytes(bytes, buf, sizeof (buf));
3350 (void) fprintf(stderr,
3351 "\r%5s completed (%4dMB/s) "
3352 "estimated time remaining: %uhr %02umin %02usec ",
3353 buf, kb_per_sec / 1024,
3354 sec_remaining / 60 / 60,
3355 sec_remaining / 60 % 60,
3356 sec_remaining % 60);
3357
3358 zcb->zcb_lastprint = now;
3359 }
3360
3361 return (0);
3362 }
3363
3364 static void
3365 zdb_leak(void *arg, uint64_t start, uint64_t size)
3366 {
3367 vdev_t *vd = arg;
3368
3369 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n",
3370 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size);
3371 }
3372
3373 static metaslab_ops_t zdb_metaslab_ops = {
3374 NULL /* alloc */
3375 };
3376
3377 /* ARGSUSED */
3378 static void
3379 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset,
3380 uint64_t size, void *arg)
3381 {
3382 /*
3383 * This callback was called through a remap from
3384 * a device being removed. Therefore, the vdev that
3385 * this callback is applied to is a concrete
3386 * vdev.
3387 */
3388 ASSERT(vdev_is_concrete(vd));
3389
3390 VERIFY0(metaslab_claim_impl(vd, offset, size,
3391 spa_first_txg(vd->vdev_spa)));
3392 }
3393
3394 static void
3395 claim_segment_cb(void *arg, uint64_t offset, uint64_t size)
3396 {
3397 vdev_t *vd = arg;
3398
3399 vdev_indirect_ops.vdev_op_remap(vd, offset, size,
3400 claim_segment_impl_cb, NULL);
3401 }
3402
3403 /*
3404 * After accounting for all allocated blocks that are directly referenced,
3405 * we might have missed a reference to a block from a partially complete
3406 * (and thus unused) indirect mapping object. We perform a secondary pass
3407 * through the metaslabs we have already mapped and claim the destination
3408 * blocks.
3409 */
3410 static void
3411 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb)
3412 {
3413 if (spa->spa_vdev_removal == NULL)
3414 return;
3415
3416 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3417
3418 spa_vdev_removal_t *svr = spa->spa_vdev_removal;
3419 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id);
3420 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3421
3422 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) {
3423 metaslab_t *msp = vd->vdev_ms[msi];
3424
3425 if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim))
3426 break;
3427
3428 ASSERT0(range_tree_space(svr->svr_allocd_segs));
3429
3430 if (msp->ms_sm != NULL) {
3431 VERIFY0(space_map_load(msp->ms_sm,
3432 svr->svr_allocd_segs, SM_ALLOC));
3433
3434 /*
3435 * Clear everything past what has been synced unless
3436 * it's past the spacemap, because we have not allocated
3437 * mappings for it yet.
3438 */
3439 uint64_t vim_max_offset =
3440 vdev_indirect_mapping_max_offset(vim);
3441 uint64_t sm_end = msp->ms_sm->sm_start +
3442 msp->ms_sm->sm_size;
3443 if (sm_end > vim_max_offset)
3444 range_tree_clear(svr->svr_allocd_segs,
3445 vim_max_offset, sm_end - vim_max_offset);
3446 }
3447
3448 zcb->zcb_removing_size +=
3449 range_tree_space(svr->svr_allocd_segs);
3450 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd);
3451 }
3452
3453 spa_config_exit(spa, SCL_CONFIG, FTAG);
3454 }
3455
3456 /*
3457 * vm_idxp is an in-out parameter which (for indirect vdevs) is the
3458 * index in vim_entries that has the first entry in this metaslab. On
3459 * return, it will be set to the first entry after this metaslab.
3460 */
3461 static void
3462 zdb_leak_init_ms(metaslab_t *msp, uint64_t *vim_idxp)
3463 {
3464 metaslab_group_t *mg = msp->ms_group;
3465 vdev_t *vd = mg->mg_vd;
3466 vdev_t *rvd = vd->vdev_spa->spa_root_vdev;
3467
3468 mutex_enter(&msp->ms_lock);
3469 metaslab_unload(msp);
3470
3471 /*
3472 * We don't want to spend the CPU manipulating the size-ordered
3473 * tree, so clear the range_tree ops.
3474 */
3475 msp->ms_tree->rt_ops = NULL;
3476
3477 (void) fprintf(stderr,
3478 "\rloading vdev %llu of %llu, metaslab %llu of %llu ...",
3479 (longlong_t)vd->vdev_id,
3480 (longlong_t)rvd->vdev_children,
3481 (longlong_t)msp->ms_id,
3482 (longlong_t)vd->vdev_ms_count);
3483
3484 /*
3485 * For leak detection, we overload the metaslab ms_tree to
3486 * contain allocated segments instead of free segments. As a
3487 * result, we can't use the normal metaslab_load/unload
3488 * interfaces.
3489 */
3490 if (vd->vdev_ops == &vdev_indirect_ops) {
3491 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3492 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim);
3493 (*vim_idxp)++) {
3494 vdev_indirect_mapping_entry_phys_t *vimep =
3495 &vim->vim_entries[*vim_idxp];
3496 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
3497 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst);
3498 ASSERT3U(ent_offset, >=, msp->ms_start);
3499 if (ent_offset >= msp->ms_start + msp->ms_size)
3500 break;
3501
3502 /*
3503 * Mappings do not cross metaslab boundaries,
3504 * because we create them by walking the metaslabs.
3505 */
3506 ASSERT3U(ent_offset + ent_len, <=,
3507 msp->ms_start + msp->ms_size);
3508 range_tree_add(msp->ms_tree, ent_offset, ent_len);
3509 }
3510 } else if (msp->ms_sm != NULL) {
3511 VERIFY0(space_map_load(msp->ms_sm, msp->ms_tree, SM_ALLOC));
3512 }
3513
3514 if (!msp->ms_loaded) {
3515 msp->ms_loaded = B_TRUE;
3516 }
3517 mutex_exit(&msp->ms_lock);
3518 }
3519
3520 /* ARGSUSED */
3521 static int
3522 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
3523 {
3524 zdb_cb_t *zcb = arg;
3525 spa_t *spa = zcb->zcb_spa;
3526 vdev_t *vd;
3527 const dva_t *dva = &bp->blk_dva[0];
3528
3529 ASSERT(!dump_opt['L']);
3530 ASSERT3U(BP_GET_NDVAS(bp), ==, 1);
3531
3532 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
3533 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva));
3534 ASSERT3P(vd, !=, NULL);
3535 spa_config_exit(spa, SCL_VDEV, FTAG);
3536
3537 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0);
3538 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL);
3539
3540 vdev_indirect_mapping_increment_obsolete_count(
3541 vd->vdev_indirect_mapping,
3542 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva),
3543 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
3544
3545 return (0);
3546 }
3547
3548 static uint32_t *
3549 zdb_load_obsolete_counts(vdev_t *vd)
3550 {
3551 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3552 spa_t *spa = vd->vdev_spa;
3553 spa_condensing_indirect_phys_t *scip =
3554 &spa->spa_condensing_indirect_phys;
3555 uint32_t *counts;
3556
3557 EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL);
3558 counts = vdev_indirect_mapping_load_obsolete_counts(vim);
3559 if (vd->vdev_obsolete_sm != NULL) {
3560 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
3561 vd->vdev_obsolete_sm);
3562 }
3563 if (scip->scip_vdev == vd->vdev_id &&
3564 scip->scip_prev_obsolete_sm_object != 0) {
3565 space_map_t *prev_obsolete_sm = NULL;
3566 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset,
3567 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0));
3568 space_map_update(prev_obsolete_sm);
3569 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts,
3570 prev_obsolete_sm);
3571 space_map_close(prev_obsolete_sm);
3572 }
3573 return (counts);
3574 }
3575
3576 static void
3577 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb)
3578 {
3579 ddt_bookmark_t ddb;
3580 ddt_entry_t dde;
3581 int error;
3582 int p;
3583
3584 bzero(&ddb, sizeof (ddb));
3585 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) {
3586 blkptr_t blk;
3587 ddt_phys_t *ddp = dde.dde_phys;
3588
3589 if (ddb.ddb_class == DDT_CLASS_UNIQUE)
3590 return;
3591
3592 ASSERT(ddt_phys_total_refcnt(&dde) > 1);
3593
3594 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) {
3595 if (ddp->ddp_phys_birth == 0)
3596 continue;
3597 ddt_bp_create(ddb.ddb_checksum,
3598 &dde.dde_key, ddp, &blk);
3599 if (p == DDT_PHYS_DITTO) {
3600 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO);
3601 } else {
3602 zcb->zcb_dedup_asize +=
3603 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1);
3604 zcb->zcb_dedup_blocks++;
3605 }
3606 }
3607 if (!dump_opt['L']) {
3608 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum];
3609 ddt_enter(ddt);
3610 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL);
3611 ddt_exit(ddt);
3612 }
3613 }
3614
3615 ASSERT(error == ENOENT);
3616 }
3617
3618 static void
3619 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb)
3620 {
3621 zcb->zcb_spa = spa;
3622 uint64_t c;
3623
3624 if (!dump_opt['L']) {
3625 dsl_pool_t *dp = spa->spa_dsl_pool;
3626 vdev_t *rvd = spa->spa_root_vdev;
3627
3628 /*
3629 * We are going to be changing the meaning of the metaslab's
3630 * ms_tree. Ensure that the allocator doesn't try to
3631 * use the tree.
3632 */
3633 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops;
3634 spa->spa_log_class->mc_ops = &zdb_metaslab_ops;
3635
3636 zcb->zcb_vd_obsolete_counts =
3637 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *),
3638 UMEM_NOFAIL);
3639
3640 for (c = 0; c < rvd->vdev_children; c++) {
3641 vdev_t *vd = rvd->vdev_child[c];
3642 uint64_t vim_idx = 0;
3643
3644 ASSERT3U(c, ==, vd->vdev_id);
3645
3646 /*
3647 * Note: we don't check for mapping leaks on
3648 * removing vdevs because their ms_tree's are
3649 * used to look for leaks in allocated space.
3650 */
3651 if (vd->vdev_ops == &vdev_indirect_ops) {
3652 zcb->zcb_vd_obsolete_counts[c] =
3653 zdb_load_obsolete_counts(vd);
3654
3655 /*
3656 * Normally, indirect vdevs don't have any
3657 * metaslabs. We want to set them up for
3658 * zio_claim().
3659 */
3660 VERIFY0(vdev_metaslab_init(vd, 0));
3661 }
3662
3663 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
3664 zdb_leak_init_ms(vd->vdev_ms[m], &vim_idx);
3665 }
3666 if (vd->vdev_ops == &vdev_indirect_ops) {
3667 ASSERT3U(vim_idx, ==,
3668 vdev_indirect_mapping_num_entries(
3669 vd->vdev_indirect_mapping));
3670 }
3671 }
3672 (void) fprintf(stderr, "\n");
3673
3674 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
3675 ASSERT(spa_feature_is_enabled(spa,
3676 SPA_FEATURE_DEVICE_REMOVAL));
3677 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj,
3678 increment_indirect_mapping_cb, zcb, NULL);
3679 }
3680 }
3681
3682 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
3683
3684 zdb_ddt_leak_init(spa, zcb);
3685
3686 spa_config_exit(spa, SCL_CONFIG, FTAG);
3687 }
3688
3689 static boolean_t
3690 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb)
3691 {
3692 boolean_t leaks = B_FALSE;
3693 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3694 uint64_t total_leaked = 0;
3695
3696 ASSERT(vim != NULL);
3697
3698 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) {
3699 vdev_indirect_mapping_entry_phys_t *vimep =
3700 &vim->vim_entries[i];
3701 uint64_t obsolete_bytes = 0;
3702 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep);
3703 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift];
3704
3705 /*
3706 * This is not very efficient but it's easy to
3707 * verify correctness.
3708 */
3709 for (uint64_t inner_offset = 0;
3710 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst);
3711 inner_offset += 1 << vd->vdev_ashift) {
3712 if (range_tree_contains(msp->ms_tree,
3713 offset + inner_offset, 1 << vd->vdev_ashift)) {
3714 obsolete_bytes += 1 << vd->vdev_ashift;
3715 }
3716 }
3717
3718 int64_t bytes_leaked = obsolete_bytes -
3719 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i];
3720 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=,
3721 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]);
3722 if (bytes_leaked != 0 &&
3723 (vdev_obsolete_counts_are_precise(vd) ||
3724 dump_opt['d'] >= 5)) {
3725 (void) printf("obsolete indirect mapping count "
3726 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n",
3727 (u_longlong_t)vd->vdev_id,
3728 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep),
3729 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst),
3730 (u_longlong_t)bytes_leaked);
3731 }
3732 total_leaked += ABS(bytes_leaked);
3733 }
3734
3735 if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) {
3736 int pct_leaked = total_leaked * 100 /
3737 vdev_indirect_mapping_bytes_mapped(vim);
3738 (void) printf("cannot verify obsolete indirect mapping "
3739 "counts of vdev %llu because precise feature was not "
3740 "enabled when it was removed: %d%% (%llx bytes) of mapping"
3741 "unreferenced\n",
3742 (u_longlong_t)vd->vdev_id, pct_leaked,
3743 (u_longlong_t)total_leaked);
3744 } else if (total_leaked > 0) {
3745 (void) printf("obsolete indirect mapping count mismatch "
3746 "for vdev %llu -- %llx total bytes mismatched\n",
3747 (u_longlong_t)vd->vdev_id,
3748 (u_longlong_t)total_leaked);
3749 leaks |= B_TRUE;
3750 }
3751
3752 vdev_indirect_mapping_free_obsolete_counts(vim,
3753 zcb->zcb_vd_obsolete_counts[vd->vdev_id]);
3754 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL;
3755
3756 return (leaks);
3757 }
3758
3759 static boolean_t
3760 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb)
3761 {
3762 boolean_t leaks = B_FALSE;
3763 if (!dump_opt['L']) {
3764 vdev_t *rvd = spa->spa_root_vdev;
3765 for (unsigned c = 0; c < rvd->vdev_children; c++) {
3766 vdev_t *vd = rvd->vdev_child[c];
3767 ASSERTV(metaslab_group_t *mg = vd->vdev_mg);
3768
3769 if (zcb->zcb_vd_obsolete_counts[c] != NULL) {
3770 leaks |= zdb_check_for_obsolete_leaks(vd, zcb);
3771 }
3772
3773 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) {
3774 metaslab_t *msp = vd->vdev_ms[m];
3775 ASSERT3P(mg, ==, msp->ms_group);
3776
3777 /*
3778 * The ms_tree has been overloaded to
3779 * contain allocated segments. Now that we
3780 * finished traversing all blocks, any
3781 * block that remains in the ms_tree
3782 * represents an allocated block that we
3783 * did not claim during the traversal.
3784 * Claimed blocks would have been removed
3785 * from the ms_tree. For indirect vdevs,
3786 * space remaining in the tree represents
3787 * parts of the mapping that are not
3788 * referenced, which is not a bug.
3789 */
3790 if (vd->vdev_ops == &vdev_indirect_ops) {
3791 range_tree_vacate(msp->ms_tree,
3792 NULL, NULL);
3793 } else {
3794 range_tree_vacate(msp->ms_tree,
3795 zdb_leak, vd);
3796 }
3797
3798 if (msp->ms_loaded)
3799 msp->ms_loaded = B_FALSE;
3800 }
3801 }
3802
3803 umem_free(zcb->zcb_vd_obsolete_counts,
3804 rvd->vdev_children * sizeof (uint32_t *));
3805 zcb->zcb_vd_obsolete_counts = NULL;
3806 }
3807 return (leaks);
3808 }
3809
3810 /* ARGSUSED */
3811 static int
3812 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx)
3813 {
3814 zdb_cb_t *zcb = arg;
3815
3816 if (dump_opt['b'] >= 5) {
3817 char blkbuf[BP_SPRINTF_LEN];
3818 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
3819 (void) printf("[%s] %s\n",
3820 "deferred free", blkbuf);
3821 }
3822 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED);
3823 return (0);
3824 }
3825
3826 static int
3827 dump_block_stats(spa_t *spa)
3828 {
3829 zdb_cb_t zcb;
3830 zdb_blkstats_t *zb, *tzb;
3831 uint64_t norm_alloc, norm_space, total_alloc, total_found;
3832 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA |
3833 TRAVERSE_NO_DECRYPT | TRAVERSE_HARD;
3834 boolean_t leaks = B_FALSE;
3835 int e, c, err;
3836 bp_embedded_type_t i;
3837
3838 bzero(&zcb, sizeof (zcb));
3839 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n",
3840 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "",
3841 (dump_opt['c'] == 1) ? "metadata " : "",
3842 dump_opt['c'] ? "checksums " : "",
3843 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "",
3844 !dump_opt['L'] ? "nothing leaked " : "");
3845
3846 /*
3847 * Load all space maps as SM_ALLOC maps, then traverse the pool
3848 * claiming each block we discover. If the pool is perfectly
3849 * consistent, the space maps will be empty when we're done.
3850 * Anything left over is a leak; any block we can't claim (because
3851 * it's not part of any space map) is a double allocation,
3852 * reference to a freed block, or an unclaimed log block.
3853 */
3854 bzero(&zcb, sizeof (zdb_cb_t));
3855 zdb_leak_init(spa, &zcb);
3856
3857 /*
3858 * If there's a deferred-free bplist, process that first.
3859 */
3860 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj,
3861 count_block_cb, &zcb, NULL);
3862
3863 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
3864 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj,
3865 count_block_cb, &zcb, NULL);
3866 }
3867
3868 zdb_claim_removing(spa, &zcb);
3869
3870 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) {
3871 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset,
3872 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb,
3873 &zcb, NULL));
3874 }
3875
3876 if (dump_opt['c'] > 1)
3877 flags |= TRAVERSE_PREFETCH_DATA;
3878
3879 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa));
3880 zcb.zcb_start = zcb.zcb_lastprint = gethrtime();
3881 err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb);
3882
3883 /*
3884 * If we've traversed the data blocks then we need to wait for those
3885 * I/Os to complete. We leverage "The Godfather" zio to wait on
3886 * all async I/Os to complete.
3887 */
3888 if (dump_opt['c']) {
3889 for (c = 0; c < max_ncpus; c++) {
3890 (void) zio_wait(spa->spa_async_zio_root[c]);
3891 spa->spa_async_zio_root[c] = zio_root(spa, NULL, NULL,
3892 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE |
3893 ZIO_FLAG_GODFATHER);
3894 }
3895 }
3896
3897 /*
3898 * Done after zio_wait() since zcb_haderrors is modified in
3899 * zdb_blkptr_done()
3900 */
3901 zcb.zcb_haderrors |= err;
3902
3903 if (zcb.zcb_haderrors) {
3904 (void) printf("\nError counts:\n\n");
3905 (void) printf("\t%5s %s\n", "errno", "count");
3906 for (e = 0; e < 256; e++) {
3907 if (zcb.zcb_errors[e] != 0) {
3908 (void) printf("\t%5d %llu\n",
3909 e, (u_longlong_t)zcb.zcb_errors[e]);
3910 }
3911 }
3912 }
3913
3914 /*
3915 * Report any leaked segments.
3916 */
3917 leaks |= zdb_leak_fini(spa, &zcb);
3918
3919 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL];
3920
3921 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
3922 norm_space = metaslab_class_get_space(spa_normal_class(spa));
3923
3924 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa));
3925 total_found = tzb->zb_asize - zcb.zcb_dedup_asize +
3926 zcb.zcb_removing_size;
3927
3928 if (total_found == total_alloc) {
3929 if (!dump_opt['L'])
3930 (void) printf("\n\tNo leaks (block sum matches space"
3931 " maps exactly)\n");
3932 } else {
3933 (void) printf("block traversal size %llu != alloc %llu "
3934 "(%s %lld)\n",
3935 (u_longlong_t)total_found,
3936 (u_longlong_t)total_alloc,
3937 (dump_opt['L']) ? "unreachable" : "leaked",
3938 (longlong_t)(total_alloc - total_found));
3939 leaks = B_TRUE;
3940 }
3941
3942 if (tzb->zb_count == 0)
3943 return (2);
3944
3945 (void) printf("\n");
3946 (void) printf("\tbp count: %10llu\n",
3947 (u_longlong_t)tzb->zb_count);
3948 (void) printf("\tganged count: %10llu\n",
3949 (longlong_t)tzb->zb_gangs);
3950 (void) printf("\tbp logical: %10llu avg: %6llu\n",
3951 (u_longlong_t)tzb->zb_lsize,
3952 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count));
3953 (void) printf("\tbp physical: %10llu avg:"
3954 " %6llu compression: %6.2f\n",
3955 (u_longlong_t)tzb->zb_psize,
3956 (u_longlong_t)(tzb->zb_psize / tzb->zb_count),
3957 (double)tzb->zb_lsize / tzb->zb_psize);
3958 (void) printf("\tbp allocated: %10llu avg:"
3959 " %6llu compression: %6.2f\n",
3960 (u_longlong_t)tzb->zb_asize,
3961 (u_longlong_t)(tzb->zb_asize / tzb->zb_count),
3962 (double)tzb->zb_lsize / tzb->zb_asize);
3963 (void) printf("\tbp deduped: %10llu ref>1:"
3964 " %6llu deduplication: %6.2f\n",
3965 (u_longlong_t)zcb.zcb_dedup_asize,
3966 (u_longlong_t)zcb.zcb_dedup_blocks,
3967 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0);
3968 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n",
3969 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space);
3970
3971 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) {
3972 if (zcb.zcb_embedded_blocks[i] == 0)
3973 continue;
3974 (void) printf("\n");
3975 (void) printf("\tadditional, non-pointer bps of type %u: "
3976 "%10llu\n",
3977 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]);
3978
3979 if (dump_opt['b'] >= 3) {
3980 (void) printf("\t number of (compressed) bytes: "
3981 "number of bps\n");
3982 dump_histogram(zcb.zcb_embedded_histogram[i],
3983 sizeof (zcb.zcb_embedded_histogram[i]) /
3984 sizeof (zcb.zcb_embedded_histogram[i][0]), 0);
3985 }
3986 }
3987
3988 if (tzb->zb_ditto_samevdev != 0) {
3989 (void) printf("\tDittoed blocks on same vdev: %llu\n",
3990 (longlong_t)tzb->zb_ditto_samevdev);
3991 }
3992
3993 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) {
3994 vdev_t *vd = spa->spa_root_vdev->vdev_child[v];
3995 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping;
3996
3997 if (vim == NULL) {
3998 continue;
3999 }
4000
4001 char mem[32];
4002 zdb_nicenum(vdev_indirect_mapping_num_entries(vim),
4003 mem, vdev_indirect_mapping_size(vim));
4004
4005 (void) printf("\tindirect vdev id %llu has %llu segments "
4006 "(%s in memory)\n",
4007 (longlong_t)vd->vdev_id,
4008 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem);
4009 }
4010
4011 if (dump_opt['b'] >= 2) {
4012 int l, t, level;
4013 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE"
4014 "\t avg\t comp\t%%Total\tType\n");
4015
4016 for (t = 0; t <= ZDB_OT_TOTAL; t++) {
4017 char csize[32], lsize[32], psize[32], asize[32];
4018 char avg[32], gang[32];
4019 const char *typename;
4020
4021 /* make sure nicenum has enough space */
4022 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ);
4023 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ);
4024 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ);
4025 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ);
4026 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ);
4027 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ);
4028
4029 if (t < DMU_OT_NUMTYPES)
4030 typename = dmu_ot[t].ot_name;
4031 else
4032 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES];
4033
4034 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) {
4035 (void) printf("%6s\t%5s\t%5s\t%5s"
4036 "\t%5s\t%5s\t%6s\t%s\n",
4037 "-",
4038 "-",
4039 "-",
4040 "-",
4041 "-",
4042 "-",
4043 "-",
4044 typename);
4045 continue;
4046 }
4047
4048 for (l = ZB_TOTAL - 1; l >= -1; l--) {
4049 level = (l == -1 ? ZB_TOTAL : l);
4050 zb = &zcb.zcb_type[level][t];
4051
4052 if (zb->zb_asize == 0)
4053 continue;
4054
4055 if (dump_opt['b'] < 3 && level != ZB_TOTAL)
4056 continue;
4057
4058 if (level == 0 && zb->zb_asize ==
4059 zcb.zcb_type[ZB_TOTAL][t].zb_asize)
4060 continue;
4061
4062 zdb_nicenum(zb->zb_count, csize,
4063 sizeof (csize));
4064 zdb_nicenum(zb->zb_lsize, lsize,
4065 sizeof (lsize));
4066 zdb_nicenum(zb->zb_psize, psize,
4067 sizeof (psize));
4068 zdb_nicenum(zb->zb_asize, asize,
4069 sizeof (asize));
4070 zdb_nicenum(zb->zb_asize / zb->zb_count, avg,
4071 sizeof (avg));
4072 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang));
4073
4074 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s"
4075 "\t%5.2f\t%6.2f\t",
4076 csize, lsize, psize, asize, avg,
4077 (double)zb->zb_lsize / zb->zb_psize,
4078 100.0 * zb->zb_asize / tzb->zb_asize);
4079
4080 if (level == ZB_TOTAL)
4081 (void) printf("%s\n", typename);
4082 else
4083 (void) printf(" L%d %s\n",
4084 level, typename);
4085
4086 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) {
4087 (void) printf("\t number of ganged "
4088 "blocks: %s\n", gang);
4089 }
4090
4091 if (dump_opt['b'] >= 4) {
4092 (void) printf("psize "
4093 "(in 512-byte sectors): "
4094 "number of blocks\n");
4095 dump_histogram(zb->zb_psize_histogram,
4096 PSIZE_HISTO_SIZE, 0);
4097 }
4098 }
4099 }
4100 }
4101
4102 (void) printf("\n");
4103
4104 if (leaks)
4105 return (2);
4106
4107 if (zcb.zcb_haderrors)
4108 return (3);
4109
4110 return (0);
4111 }
4112
4113 typedef struct zdb_ddt_entry {
4114 ddt_key_t zdde_key;
4115 uint64_t zdde_ref_blocks;
4116 uint64_t zdde_ref_lsize;
4117 uint64_t zdde_ref_psize;
4118 uint64_t zdde_ref_dsize;
4119 avl_node_t zdde_node;
4120 } zdb_ddt_entry_t;
4121
4122 /* ARGSUSED */
4123 static int
4124 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
4125 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg)
4126 {
4127 avl_tree_t *t = arg;
4128 avl_index_t where;
4129 zdb_ddt_entry_t *zdde, zdde_search;
4130
4131 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
4132 return (0);
4133
4134 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) {
4135 (void) printf("traversing objset %llu, %llu objects, "
4136 "%lu blocks so far\n",
4137 (u_longlong_t)zb->zb_objset,
4138 (u_longlong_t)BP_GET_FILL(bp),
4139 avl_numnodes(t));
4140 }
4141
4142 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF ||
4143 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp)))
4144 return (0);
4145
4146 ddt_key_fill(&zdde_search.zdde_key, bp);
4147
4148 zdde = avl_find(t, &zdde_search, &where);
4149
4150 if (zdde == NULL) {
4151 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL);
4152 zdde->zdde_key = zdde_search.zdde_key;
4153 avl_insert(t, zdde, where);
4154 }
4155
4156 zdde->zdde_ref_blocks += 1;
4157 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp);
4158 zdde->zdde_ref_psize += BP_GET_PSIZE(bp);
4159 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp);
4160
4161 return (0);
4162 }
4163
4164 static void
4165 dump_simulated_ddt(spa_t *spa)
4166 {
4167 avl_tree_t t;
4168 void *cookie = NULL;
4169 zdb_ddt_entry_t *zdde;
4170 ddt_histogram_t ddh_total;
4171 ddt_stat_t dds_total;
4172
4173 bzero(&ddh_total, sizeof (ddh_total));
4174 bzero(&dds_total, sizeof (dds_total));
4175 avl_create(&t, ddt_entry_compare,
4176 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node));
4177
4178 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
4179
4180 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA |
4181 TRAVERSE_NO_DECRYPT, zdb_ddt_add_cb, &t);
4182
4183 spa_config_exit(spa, SCL_CONFIG, FTAG);
4184
4185 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) {
4186 ddt_stat_t dds;
4187 uint64_t refcnt = zdde->zdde_ref_blocks;
4188 ASSERT(refcnt != 0);
4189
4190 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt;
4191 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt;
4192 dds.dds_psize = zdde->zdde_ref_psize / refcnt;
4193 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt;
4194
4195 dds.dds_ref_blocks = zdde->zdde_ref_blocks;
4196 dds.dds_ref_lsize = zdde->zdde_ref_lsize;
4197 dds.dds_ref_psize = zdde->zdde_ref_psize;
4198 dds.dds_ref_dsize = zdde->zdde_ref_dsize;
4199
4200 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1],
4201 &dds, 0);
4202
4203 umem_free(zdde, sizeof (*zdde));
4204 }
4205
4206 avl_destroy(&t);
4207
4208 ddt_histogram_stat(&dds_total, &ddh_total);
4209
4210 (void) printf("Simulated DDT histogram:\n");
4211
4212 zpool_dump_ddt(&dds_total, &ddh_total);
4213
4214 dump_dedup_ratio(&dds_total);
4215 }
4216
4217 static int
4218 verify_device_removal_feature_counts(spa_t *spa)
4219 {
4220 uint64_t dr_feature_refcount = 0;
4221 uint64_t oc_feature_refcount = 0;
4222 uint64_t indirect_vdev_count = 0;
4223 uint64_t precise_vdev_count = 0;
4224 uint64_t obsolete_counts_object_count = 0;
4225 uint64_t obsolete_sm_count = 0;
4226 uint64_t obsolete_counts_count = 0;
4227 uint64_t scip_count = 0;
4228 uint64_t obsolete_bpobj_count = 0;
4229 int ret = 0;
4230
4231 spa_condensing_indirect_phys_t *scip =
4232 &spa->spa_condensing_indirect_phys;
4233 if (scip->scip_next_mapping_object != 0) {
4234 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev];
4235 ASSERT(scip->scip_prev_obsolete_sm_object != 0);
4236 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops);
4237
4238 (void) printf("Condensing indirect vdev %llu: new mapping "
4239 "object %llu, prev obsolete sm %llu\n",
4240 (u_longlong_t)scip->scip_vdev,
4241 (u_longlong_t)scip->scip_next_mapping_object,
4242 (u_longlong_t)scip->scip_prev_obsolete_sm_object);
4243 if (scip->scip_prev_obsolete_sm_object != 0) {
4244 space_map_t *prev_obsolete_sm = NULL;
4245 VERIFY0(space_map_open(&prev_obsolete_sm,
4246 spa->spa_meta_objset,
4247 scip->scip_prev_obsolete_sm_object,
4248 0, vd->vdev_asize, 0));
4249 space_map_update(prev_obsolete_sm);
4250 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm);
4251 (void) printf("\n");
4252 space_map_close(prev_obsolete_sm);
4253 }
4254
4255 scip_count += 2;
4256 }
4257
4258 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) {
4259 vdev_t *vd = spa->spa_root_vdev->vdev_child[i];
4260 vdev_indirect_config_t *vic = &vd->vdev_indirect_config;
4261
4262 if (vic->vic_mapping_object != 0) {
4263 ASSERT(vd->vdev_ops == &vdev_indirect_ops ||
4264 vd->vdev_removing);
4265 indirect_vdev_count++;
4266
4267 if (vd->vdev_indirect_mapping->vim_havecounts) {
4268 obsolete_counts_count++;
4269 }
4270 }
4271 if (vdev_obsolete_counts_are_precise(vd)) {
4272 ASSERT(vic->vic_mapping_object != 0);
4273 precise_vdev_count++;
4274 }
4275 if (vdev_obsolete_sm_object(vd) != 0) {
4276 ASSERT(vic->vic_mapping_object != 0);
4277 obsolete_sm_count++;
4278 }
4279 }
4280
4281 (void) feature_get_refcount(spa,
4282 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL],
4283 &dr_feature_refcount);
4284 (void) feature_get_refcount(spa,
4285 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS],
4286 &oc_feature_refcount);
4287
4288 if (dr_feature_refcount != indirect_vdev_count) {
4289 ret = 1;
4290 (void) printf("Number of indirect vdevs (%llu) " \
4291 "does not match feature count (%llu)\n",
4292 (u_longlong_t)indirect_vdev_count,
4293 (u_longlong_t)dr_feature_refcount);
4294 } else {
4295 (void) printf("Verified device_removal feature refcount " \
4296 "of %llu is correct\n",
4297 (u_longlong_t)dr_feature_refcount);
4298 }
4299
4300 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT,
4301 DMU_POOL_OBSOLETE_BPOBJ) == 0) {
4302 obsolete_bpobj_count++;
4303 }
4304
4305
4306 obsolete_counts_object_count = precise_vdev_count;
4307 obsolete_counts_object_count += obsolete_sm_count;
4308 obsolete_counts_object_count += obsolete_counts_count;
4309 obsolete_counts_object_count += scip_count;
4310 obsolete_counts_object_count += obsolete_bpobj_count;
4311 obsolete_counts_object_count += remap_deadlist_count;
4312
4313 if (oc_feature_refcount != obsolete_counts_object_count) {
4314 ret = 1;
4315 (void) printf("Number of obsolete counts objects (%llu) " \
4316 "does not match feature count (%llu)\n",
4317 (u_longlong_t)obsolete_counts_object_count,
4318 (u_longlong_t)oc_feature_refcount);
4319 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu "
4320 "ob:%llu rd:%llu\n",
4321 (u_longlong_t)precise_vdev_count,
4322 (u_longlong_t)obsolete_sm_count,
4323 (u_longlong_t)obsolete_counts_count,
4324 (u_longlong_t)scip_count,
4325 (u_longlong_t)obsolete_bpobj_count,
4326 (u_longlong_t)remap_deadlist_count);
4327 } else {
4328 (void) printf("Verified indirect_refcount feature refcount " \
4329 "of %llu is correct\n",
4330 (u_longlong_t)oc_feature_refcount);
4331 }
4332 return (ret);
4333 }
4334
4335 static void
4336 dump_zpool(spa_t *spa)
4337 {
4338 dsl_pool_t *dp = spa_get_dsl(spa);
4339 int rc = 0;
4340
4341 if (dump_opt['S']) {
4342 dump_simulated_ddt(spa);
4343 return;
4344 }
4345
4346 if (!dump_opt['e'] && dump_opt['C'] > 1) {
4347 (void) printf("\nCached configuration:\n");
4348 dump_nvlist(spa->spa_config, 8);
4349 }
4350
4351 if (dump_opt['C'])
4352 dump_config(spa);
4353
4354 if (dump_opt['u'])
4355 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n");
4356
4357 if (dump_opt['D'])
4358 dump_all_ddts(spa);
4359
4360 if (dump_opt['d'] > 2 || dump_opt['m'])
4361 dump_metaslabs(spa);
4362 if (dump_opt['M'])
4363 dump_metaslab_groups(spa);
4364
4365 if (dump_opt['d'] || dump_opt['i']) {
4366 spa_feature_t f;
4367
4368 dump_dir(dp->dp_meta_objset);
4369 if (dump_opt['d'] >= 3) {
4370 dsl_pool_t *dp = spa->spa_dsl_pool;
4371 dump_full_bpobj(&spa->spa_deferred_bpobj,
4372 "Deferred frees", 0);
4373 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) {
4374 dump_full_bpobj(&dp->dp_free_bpobj,
4375 "Pool snapshot frees", 0);
4376 }
4377 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) {
4378 ASSERT(spa_feature_is_enabled(spa,
4379 SPA_FEATURE_DEVICE_REMOVAL));
4380 dump_full_bpobj(&dp->dp_obsolete_bpobj,
4381 "Pool obsolete blocks", 0);
4382 }
4383
4384 if (spa_feature_is_active(spa,
4385 SPA_FEATURE_ASYNC_DESTROY)) {
4386 dump_bptree(spa->spa_meta_objset,
4387 dp->dp_bptree_obj,
4388 "Pool dataset frees");
4389 }
4390 dump_dtl(spa->spa_root_vdev, 0);
4391 }
4392 (void) dmu_objset_find(spa_name(spa), dump_one_dir,
4393 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
4394
4395 for (f = 0; f < SPA_FEATURES; f++) {
4396 uint64_t refcount;
4397
4398 if (!(spa_feature_table[f].fi_flags &
4399 ZFEATURE_FLAG_PER_DATASET) ||
4400 !spa_feature_is_enabled(spa, f)) {
4401 ASSERT0(dataset_feature_count[f]);
4402 continue;
4403 }
4404 if (feature_get_refcount(spa, &spa_feature_table[f],
4405 &refcount) == ENOTSUP)
4406 continue;
4407 if (dataset_feature_count[f] != refcount) {
4408 (void) printf("%s feature refcount mismatch: "
4409 "%lld datasets != %lld refcount\n",
4410 spa_feature_table[f].fi_uname,
4411 (longlong_t)dataset_feature_count[f],
4412 (longlong_t)refcount);
4413 rc = 2;
4414 } else {
4415 (void) printf("Verified %s feature refcount "
4416 "of %llu is correct\n",
4417 spa_feature_table[f].fi_uname,
4418 (longlong_t)refcount);
4419 }
4420 }
4421
4422 if (rc == 0) {
4423 rc = verify_device_removal_feature_counts(spa);
4424 }
4425 }
4426 if (rc == 0 && (dump_opt['b'] || dump_opt['c']))
4427 rc = dump_block_stats(spa);
4428
4429 if (rc == 0)
4430 rc = verify_spacemap_refcounts(spa);
4431
4432 if (dump_opt['s'])
4433 show_pool_stats(spa);
4434
4435 if (dump_opt['h'])
4436 dump_history(spa);
4437
4438 if (rc != 0) {
4439 dump_debug_buffer();
4440 exit(rc);
4441 }
4442 }
4443
4444 #define ZDB_FLAG_CHECKSUM 0x0001
4445 #define ZDB_FLAG_DECOMPRESS 0x0002
4446 #define ZDB_FLAG_BSWAP 0x0004
4447 #define ZDB_FLAG_GBH 0x0008
4448 #define ZDB_FLAG_INDIRECT 0x0010
4449 #define ZDB_FLAG_PHYS 0x0020
4450 #define ZDB_FLAG_RAW 0x0040
4451 #define ZDB_FLAG_PRINT_BLKPTR 0x0080
4452
4453 static int flagbits[256];
4454
4455 static void
4456 zdb_print_blkptr(blkptr_t *bp, int flags)
4457 {
4458 char blkbuf[BP_SPRINTF_LEN];
4459
4460 if (flags & ZDB_FLAG_BSWAP)
4461 byteswap_uint64_array((void *)bp, sizeof (blkptr_t));
4462
4463 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp);
4464 (void) printf("%s\n", blkbuf);
4465 }
4466
4467 static void
4468 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags)
4469 {
4470 int i;
4471
4472 for (i = 0; i < nbps; i++)
4473 zdb_print_blkptr(&bp[i], flags);
4474 }
4475
4476 static void
4477 zdb_dump_gbh(void *buf, int flags)
4478 {
4479 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags);
4480 }
4481
4482 static void
4483 zdb_dump_block_raw(void *buf, uint64_t size, int flags)
4484 {
4485 if (flags & ZDB_FLAG_BSWAP)
4486 byteswap_uint64_array(buf, size);
4487 VERIFY(write(fileno(stdout), buf, size) == size);
4488 }
4489
4490 static void
4491 zdb_dump_block(char *label, void *buf, uint64_t size, int flags)
4492 {
4493 uint64_t *d = (uint64_t *)buf;
4494 unsigned nwords = size / sizeof (uint64_t);
4495 int do_bswap = !!(flags & ZDB_FLAG_BSWAP);
4496 unsigned i, j;
4497 const char *hdr;
4498 char *c;
4499
4500
4501 if (do_bswap)
4502 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8";
4503 else
4504 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f";
4505
4506 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr);
4507
4508 #ifdef _LITTLE_ENDIAN
4509 /* correct the endianness */
4510 do_bswap = !do_bswap;
4511 #endif
4512 for (i = 0; i < nwords; i += 2) {
4513 (void) printf("%06llx: %016llx %016llx ",
4514 (u_longlong_t)(i * sizeof (uint64_t)),
4515 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]),
4516 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1]));
4517
4518 c = (char *)&d[i];
4519 for (j = 0; j < 2 * sizeof (uint64_t); j++)
4520 (void) printf("%c", isprint(c[j]) ? c[j] : '.');
4521 (void) printf("\n");
4522 }
4523 }
4524
4525 /*
4526 * There are two acceptable formats:
4527 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a
4528 * child[.child]* - For example: 0.1.1
4529 *
4530 * The second form can be used to specify arbitrary vdevs anywhere
4531 * in the hierarchy. For example, in a pool with a mirror of
4532 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 .
4533 */
4534 static vdev_t *
4535 zdb_vdev_lookup(vdev_t *vdev, const char *path)
4536 {
4537 char *s, *p, *q;
4538 unsigned i;
4539
4540 if (vdev == NULL)
4541 return (NULL);
4542
4543 /* First, assume the x.x.x.x format */
4544 i = strtoul(path, &s, 10);
4545 if (s == path || (s && *s != '.' && *s != '\0'))
4546 goto name;
4547 if (i >= vdev->vdev_children)
4548 return (NULL);
4549
4550 vdev = vdev->vdev_child[i];
4551 if (s && *s == '\0')
4552 return (vdev);
4553 return (zdb_vdev_lookup(vdev, s+1));
4554
4555 name:
4556 for (i = 0; i < vdev->vdev_children; i++) {
4557 vdev_t *vc = vdev->vdev_child[i];
4558
4559 if (vc->vdev_path == NULL) {
4560 vc = zdb_vdev_lookup(vc, path);
4561 if (vc == NULL)
4562 continue;
4563 else
4564 return (vc);
4565 }
4566
4567 p = strrchr(vc->vdev_path, '/');
4568 p = p ? p + 1 : vc->vdev_path;
4569 q = &vc->vdev_path[strlen(vc->vdev_path) - 2];
4570
4571 if (strcmp(vc->vdev_path, path) == 0)
4572 return (vc);
4573 if (strcmp(p, path) == 0)
4574 return (vc);
4575 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0)
4576 return (vc);
4577 }
4578
4579 return (NULL);
4580 }
4581
4582 /*
4583 * Read a block from a pool and print it out. The syntax of the
4584 * block descriptor is:
4585 *
4586 * pool:vdev_specifier:offset:size[:flags]
4587 *
4588 * pool - The name of the pool you wish to read from
4589 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup)
4590 * offset - offset, in hex, in bytes
4591 * size - Amount of data to read, in hex, in bytes
4592 * flags - A string of characters specifying options
4593 * b: Decode a blkptr at given offset within block
4594 * *c: Calculate and display checksums
4595 * d: Decompress data before dumping
4596 * e: Byteswap data before dumping
4597 * g: Display data as a gang block header
4598 * i: Display as an indirect block
4599 * p: Do I/O to physical offset
4600 * r: Dump raw data to stdout
4601 *
4602 * * = not yet implemented
4603 */
4604 static void
4605 zdb_read_block(char *thing, spa_t *spa)
4606 {
4607 blkptr_t blk, *bp = &blk;
4608 dva_t *dva = bp->blk_dva;
4609 int flags = 0;
4610 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0;
4611 zio_t *zio;
4612 vdev_t *vd;
4613 abd_t *pabd;
4614 void *lbuf, *buf;
4615 const char *s, *vdev;
4616 char *p, *dup, *flagstr;
4617 int i, error;
4618 boolean_t borrowed = B_FALSE;
4619
4620 dup = strdup(thing);
4621 s = strtok(dup, ":");
4622 vdev = s ? s : "";
4623 s = strtok(NULL, ":");
4624 offset = strtoull(s ? s : "", NULL, 16);
4625 s = strtok(NULL, ":");
4626 size = strtoull(s ? s : "", NULL, 16);
4627 s = strtok(NULL, ":");
4628 if (s)
4629 flagstr = strdup(s);
4630 else
4631 flagstr = strdup("");
4632
4633 s = NULL;
4634 if (size == 0)
4635 s = "size must not be zero";
4636 if (!IS_P2ALIGNED(size, DEV_BSIZE))
4637 s = "size must be a multiple of sector size";
4638 if (!IS_P2ALIGNED(offset, DEV_BSIZE))
4639 s = "offset must be a multiple of sector size";
4640 if (s) {
4641 (void) printf("Invalid block specifier: %s - %s\n", thing, s);
4642 free(flagstr);
4643 free(dup);
4644 return;
4645 }
4646
4647 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) {
4648 for (i = 0; flagstr[i]; i++) {
4649 int bit = flagbits[(uchar_t)flagstr[i]];
4650
4651 if (bit == 0) {
4652 (void) printf("***Invalid flag: %c\n",
4653 flagstr[i]);
4654 continue;
4655 }
4656 flags |= bit;
4657
4658 /* If it's not something with an argument, keep going */
4659 if ((bit & (ZDB_FLAG_CHECKSUM |
4660 ZDB_FLAG_PRINT_BLKPTR)) == 0)
4661 continue;
4662
4663 p = &flagstr[i + 1];
4664 if (bit == ZDB_FLAG_PRINT_BLKPTR) {
4665 blkptr_offset = strtoull(p, &p, 16);
4666 i = p - &flagstr[i + 1];
4667 }
4668 if (*p != ':' && *p != '\0') {
4669 (void) printf("***Invalid flag arg: '%s'\n", s);
4670 free(flagstr);
4671 free(dup);
4672 return;
4673 }
4674 }
4675 }
4676 free(flagstr);
4677
4678 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev);
4679 if (vd == NULL) {
4680 (void) printf("***Invalid vdev: %s\n", vdev);
4681 free(dup);
4682 return;
4683 } else {
4684 if (vd->vdev_path)
4685 (void) fprintf(stderr, "Found vdev: %s\n",
4686 vd->vdev_path);
4687 else
4688 (void) fprintf(stderr, "Found vdev type: %s\n",
4689 vd->vdev_ops->vdev_op_type);
4690 }
4691
4692 psize = size;
4693 lsize = size;
4694
4695 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE);
4696 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4697
4698 BP_ZERO(bp);
4699
4700 DVA_SET_VDEV(&dva[0], vd->vdev_id);
4701 DVA_SET_OFFSET(&dva[0], offset);
4702 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH));
4703 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize));
4704
4705 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL);
4706
4707 BP_SET_LSIZE(bp, lsize);
4708 BP_SET_PSIZE(bp, psize);
4709 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF);
4710 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF);
4711 BP_SET_TYPE(bp, DMU_OT_NONE);
4712 BP_SET_LEVEL(bp, 0);
4713 BP_SET_DEDUP(bp, 0);
4714 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER);
4715
4716 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
4717 zio = zio_root(spa, NULL, NULL, 0);
4718
4719 if (vd == vd->vdev_top) {
4720 /*
4721 * Treat this as a normal block read.
4722 */
4723 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL,
4724 ZIO_PRIORITY_SYNC_READ,
4725 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL));
4726 } else {
4727 /*
4728 * Treat this as a vdev child I/O.
4729 */
4730 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd,
4731 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ,
4732 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE |
4733 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY |
4734 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL,
4735 NULL, NULL));
4736 }
4737
4738 error = zio_wait(zio);
4739 spa_config_exit(spa, SCL_STATE, FTAG);
4740
4741 if (error) {
4742 (void) printf("Read of %s failed, error: %d\n", thing, error);
4743 goto out;
4744 }
4745
4746 if (flags & ZDB_FLAG_DECOMPRESS) {
4747 /*
4748 * We don't know how the data was compressed, so just try
4749 * every decompress function at every inflated blocksize.
4750 */
4751 enum zio_compress c;
4752 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
4753
4754 /*
4755 * XXX - On the one hand, with SPA_MAXBLOCKSIZE at 16MB,
4756 * this could take a while and we should let the user know
4757 * we are not stuck. On the other hand, printing progress
4758 * info gets old after a while. What to do?
4759 */
4760 for (lsize = psize + SPA_MINBLOCKSIZE;
4761 lsize <= SPA_MAXBLOCKSIZE; lsize += SPA_MINBLOCKSIZE) {
4762 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) {
4763 /*
4764 * ZLE can easily decompress non zle stream.
4765 * So have an option to disable it.
4766 */
4767 if (c == ZIO_COMPRESS_ZLE &&
4768 getenv("ZDB_NO_ZLE"))
4769 continue;
4770
4771 (void) fprintf(stderr,
4772 "Trying %05llx -> %05llx (%s)\n",
4773 (u_longlong_t)psize, (u_longlong_t)lsize,
4774 zio_compress_table[c].ci_name);
4775
4776 /*
4777 * We randomize lbuf2, and decompress to both
4778 * lbuf and lbuf2. This way, we will know if
4779 * decompression fill exactly to lsize.
4780 */
4781 VERIFY0(random_get_pseudo_bytes(lbuf2, lsize));
4782
4783 if (zio_decompress_data(c, pabd,
4784 lbuf, psize, lsize) == 0 &&
4785 zio_decompress_data(c, pabd,
4786 lbuf2, psize, lsize) == 0 &&
4787 bcmp(lbuf, lbuf2, lsize) == 0)
4788 break;
4789 }
4790 if (c != ZIO_COMPRESS_FUNCTIONS)
4791 break;
4792 }
4793 umem_free(lbuf2, SPA_MAXBLOCKSIZE);
4794
4795 if (lsize > SPA_MAXBLOCKSIZE) {
4796 (void) printf("Decompress of %s failed\n", thing);
4797 goto out;
4798 }
4799 buf = lbuf;
4800 size = lsize;
4801 } else {
4802 size = psize;
4803 buf = abd_borrow_buf_copy(pabd, size);
4804 borrowed = B_TRUE;
4805 }
4806
4807 if (flags & ZDB_FLAG_PRINT_BLKPTR)
4808 zdb_print_blkptr((blkptr_t *)(void *)
4809 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags);
4810 else if (flags & ZDB_FLAG_RAW)
4811 zdb_dump_block_raw(buf, size, flags);
4812 else if (flags & ZDB_FLAG_INDIRECT)
4813 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t),
4814 flags);
4815 else if (flags & ZDB_FLAG_GBH)
4816 zdb_dump_gbh(buf, flags);
4817 else
4818 zdb_dump_block(thing, buf, size, flags);
4819
4820 if (borrowed)
4821 abd_return_buf_copy(pabd, buf, size);
4822
4823 out:
4824 abd_free(pabd);
4825 umem_free(lbuf, SPA_MAXBLOCKSIZE);
4826 free(dup);
4827 }
4828
4829 static void
4830 zdb_embedded_block(char *thing)
4831 {
4832 blkptr_t bp;
4833 unsigned long long *words = (void *)&bp;
4834 char *buf;
4835 int err;
4836
4837 bzero(&bp, sizeof (bp));
4838 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:"
4839 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx",
4840 words + 0, words + 1, words + 2, words + 3,
4841 words + 4, words + 5, words + 6, words + 7,
4842 words + 8, words + 9, words + 10, words + 11,
4843 words + 12, words + 13, words + 14, words + 15);
4844 if (err != 16) {
4845 (void) fprintf(stderr, "invalid input format\n");
4846 exit(1);
4847 }
4848 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE);
4849 buf = malloc(SPA_MAXBLOCKSIZE);
4850 if (buf == NULL) {
4851 (void) fprintf(stderr, "out of memory\n");
4852 exit(1);
4853 }
4854 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp));
4855 if (err != 0) {
4856 (void) fprintf(stderr, "decode failed: %u\n", err);
4857 exit(1);
4858 }
4859 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0);
4860 free(buf);
4861 }
4862
4863 int
4864 main(int argc, char **argv)
4865 {
4866 int c;
4867 struct rlimit rl = { 1024, 1024 };
4868 spa_t *spa = NULL;
4869 objset_t *os = NULL;
4870 int dump_all = 1;
4871 int verbose = 0;
4872 int error = 0;
4873 char **searchdirs = NULL;
4874 int nsearch = 0;
4875 char *target, *target_pool;
4876 nvlist_t *policy = NULL;
4877 uint64_t max_txg = UINT64_MAX;
4878 int flags = ZFS_IMPORT_MISSING_LOG;
4879 int rewind = ZPOOL_NEVER_REWIND;
4880 char *spa_config_path_env;
4881 boolean_t target_is_spa = B_TRUE;
4882
4883 (void) setrlimit(RLIMIT_NOFILE, &rl);
4884 (void) enable_extended_FILE_stdio(-1, -1);
4885
4886 dprintf_setup(&argc, argv);
4887
4888 /*
4889 * If there is an environment variable SPA_CONFIG_PATH it overrides
4890 * default spa_config_path setting. If -U flag is specified it will
4891 * override this environment variable settings once again.
4892 */
4893 spa_config_path_env = getenv("SPA_CONFIG_PATH");
4894 if (spa_config_path_env != NULL)
4895 spa_config_path = spa_config_path_env;
4896
4897 while ((c = getopt(argc, argv,
4898 "AbcCdDeEFGhiI:lLmMo:Op:PqRsSt:uU:vVx:X")) != -1) {
4899 switch (c) {
4900 case 'b':
4901 case 'c':
4902 case 'C':
4903 case 'd':
4904 case 'D':
4905 case 'E':
4906 case 'G':
4907 case 'h':
4908 case 'i':
4909 case 'l':
4910 case 'm':
4911 case 'M':
4912 case 'O':
4913 case 'R':
4914 case 's':
4915 case 'S':
4916 case 'u':
4917 dump_opt[c]++;
4918 dump_all = 0;
4919 break;
4920 case 'A':
4921 case 'e':
4922 case 'F':
4923 case 'L':
4924 case 'P':
4925 case 'q':
4926 case 'X':
4927 dump_opt[c]++;
4928 break;
4929 /* NB: Sort single match options below. */
4930 case 'I':
4931 max_inflight = strtoull(optarg, NULL, 0);
4932 if (max_inflight == 0) {
4933 (void) fprintf(stderr, "maximum number "
4934 "of inflight I/Os must be greater "
4935 "than 0\n");
4936 usage();
4937 }
4938 break;
4939 case 'o':
4940 error = set_global_var(optarg);
4941 if (error != 0)
4942 usage();
4943 break;
4944 case 'p':
4945 if (searchdirs == NULL) {
4946 searchdirs = umem_alloc(sizeof (char *),
4947 UMEM_NOFAIL);
4948 } else {
4949 char **tmp = umem_alloc((nsearch + 1) *
4950 sizeof (char *), UMEM_NOFAIL);
4951 bcopy(searchdirs, tmp, nsearch *
4952 sizeof (char *));
4953 umem_free(searchdirs,
4954 nsearch * sizeof (char *));
4955 searchdirs = tmp;
4956 }
4957 searchdirs[nsearch++] = optarg;
4958 break;
4959 case 't':
4960 max_txg = strtoull(optarg, NULL, 0);
4961 if (max_txg < TXG_INITIAL) {
4962 (void) fprintf(stderr, "incorrect txg "
4963 "specified: %s\n", optarg);
4964 usage();
4965 }
4966 break;
4967 case 'U':
4968 spa_config_path = optarg;
4969 if (spa_config_path[0] != '/') {
4970 (void) fprintf(stderr,
4971 "cachefile must be an absolute path "
4972 "(i.e. start with a slash)\n");
4973 usage();
4974 }
4975 break;
4976 case 'v':
4977 verbose++;
4978 break;
4979 case 'V':
4980 flags = ZFS_IMPORT_VERBATIM;
4981 break;
4982 case 'x':
4983 vn_dumpdir = optarg;
4984 break;
4985 default:
4986 usage();
4987 break;
4988 }
4989 }
4990
4991 if (!dump_opt['e'] && searchdirs != NULL) {
4992 (void) fprintf(stderr, "-p option requires use of -e\n");
4993 usage();
4994 }
4995
4996 #if defined(_LP64)
4997 /*
4998 * ZDB does not typically re-read blocks; therefore limit the ARC
4999 * to 256 MB, which can be used entirely for metadata.
5000 */
5001 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024;
5002 #endif
5003
5004 /*
5005 * "zdb -c" uses checksum-verifying scrub i/os which are async reads.
5006 * "zdb -b" uses traversal prefetch which uses async reads.
5007 * For good performance, let several of them be active at once.
5008 */
5009 zfs_vdev_async_read_max_active = 10;
5010
5011 /*
5012 * Disable reference tracking for better performance.
5013 */
5014 reference_tracking_enable = B_FALSE;
5015
5016 /*
5017 * Do not fail spa_load when spa_load_verify fails. This is needed
5018 * to load non-idle pools.
5019 */
5020 spa_load_verify_dryrun = B_TRUE;
5021
5022 kernel_init(FREAD);
5023 if ((g_zfs = libzfs_init()) == NULL) {
5024 (void) fprintf(stderr, "%s", libzfs_error_init(errno));
5025 return (1);
5026 }
5027
5028 if (dump_all)
5029 verbose = MAX(verbose, 1);
5030
5031 for (c = 0; c < 256; c++) {
5032 if (dump_all && strchr("AeEFlLOPRSX", c) == NULL)
5033 dump_opt[c] = 1;
5034 if (dump_opt[c])
5035 dump_opt[c] += verbose;
5036 }
5037
5038 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2);
5039 zfs_recover = (dump_opt['A'] > 1);
5040
5041 argc -= optind;
5042 argv += optind;
5043
5044 if (argc < 2 && dump_opt['R'])
5045 usage();
5046
5047 if (dump_opt['E']) {
5048 if (argc != 1)
5049 usage();
5050 zdb_embedded_block(argv[0]);
5051 return (0);
5052 }
5053
5054 if (argc < 1) {
5055 if (!dump_opt['e'] && dump_opt['C']) {
5056 dump_cachefile(spa_config_path);
5057 return (0);
5058 }
5059 usage();
5060 }
5061
5062 if (dump_opt['l'])
5063 return (dump_label(argv[0]));
5064
5065 if (dump_opt['O']) {
5066 if (argc != 2)
5067 usage();
5068 dump_opt['v'] = verbose + 3;
5069 return (dump_path(argv[0], argv[1]));
5070 }
5071
5072 if (dump_opt['X'] || dump_opt['F'])
5073 rewind = ZPOOL_DO_REWIND |
5074 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0);
5075
5076 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 ||
5077 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 ||
5078 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0)
5079 fatal("internal error: %s", strerror(ENOMEM));
5080
5081 error = 0;
5082 target = argv[0];
5083
5084 if (strpbrk(target, "/@") != NULL) {
5085 size_t targetlen;
5086
5087 target_pool = strdup(target);
5088 *strpbrk(target_pool, "/@") = '\0';
5089
5090 target_is_spa = B_FALSE;
5091 targetlen = strlen(target);
5092 if (targetlen && target[targetlen - 1] == '/')
5093 target[targetlen - 1] = '\0';
5094 } else {
5095 target_pool = target;
5096 }
5097
5098 if (dump_opt['e']) {
5099 importargs_t args = { 0 };
5100 nvlist_t *cfg = NULL;
5101
5102 args.paths = nsearch;
5103 args.path = searchdirs;
5104 args.can_be_active = B_TRUE;
5105
5106 error = zpool_tryimport(g_zfs, target_pool, &cfg, &args);
5107
5108 if (error == 0) {
5109
5110 if (nvlist_add_nvlist(cfg,
5111 ZPOOL_REWIND_POLICY, policy) != 0) {
5112 fatal("can't open '%s': %s",
5113 target, strerror(ENOMEM));
5114 }
5115
5116 /*
5117 * Disable the activity check to allow examination of
5118 * active pools.
5119 */
5120 if (dump_opt['C'] > 1) {
5121 (void) printf("\nConfiguration for import:\n");
5122 dump_nvlist(cfg, 8);
5123 }
5124 error = spa_import(target_pool, cfg, NULL,
5125 flags | ZFS_IMPORT_SKIP_MMP);
5126 }
5127 }
5128
5129 if (target_pool != target)
5130 free(target_pool);
5131
5132 if (error == 0) {
5133 if (target_is_spa || dump_opt['R']) {
5134 /*
5135 * Disable the activity check to allow examination of
5136 * active pools.
5137 */
5138 mutex_enter(&spa_namespace_lock);
5139 if ((spa = spa_lookup(target)) != NULL) {
5140 spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP;
5141 }
5142 mutex_exit(&spa_namespace_lock);
5143
5144 error = spa_open_rewind(target, &spa, FTAG, policy,
5145 NULL);
5146 if (error) {
5147 /*
5148 * If we're missing the log device then
5149 * try opening the pool after clearing the
5150 * log state.
5151 */
5152 mutex_enter(&spa_namespace_lock);
5153 if ((spa = spa_lookup(target)) != NULL &&
5154 spa->spa_log_state == SPA_LOG_MISSING) {
5155 spa->spa_log_state = SPA_LOG_CLEAR;
5156 error = 0;
5157 }
5158 mutex_exit(&spa_namespace_lock);
5159
5160 if (!error) {
5161 error = spa_open_rewind(target, &spa,
5162 FTAG, policy, NULL);
5163 }
5164 }
5165 } else {
5166 error = open_objset(target, DMU_OST_ANY, FTAG, &os);
5167 if (error == 0)
5168 spa = dmu_objset_spa(os);
5169 }
5170 }
5171 nvlist_free(policy);
5172
5173 if (error)
5174 fatal("can't open '%s': %s", target, strerror(error));
5175
5176 /*
5177 * Set the pool failure mode to panic in order to prevent the pool
5178 * from suspending. A suspended I/O will have no way to resume and
5179 * can prevent the zdb(8) command from terminating as expected.
5180 */
5181 if (spa != NULL)
5182 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC;
5183
5184 argv++;
5185 argc--;
5186 if (!dump_opt['R']) {
5187 if (argc > 0) {
5188 zopt_objects = argc;
5189 zopt_object = calloc(zopt_objects, sizeof (uint64_t));
5190 for (unsigned i = 0; i < zopt_objects; i++) {
5191 errno = 0;
5192 zopt_object[i] = strtoull(argv[i], NULL, 0);
5193 if (zopt_object[i] == 0 && errno != 0)
5194 fatal("bad number %s: %s",
5195 argv[i], strerror(errno));
5196 }
5197 }
5198 if (os != NULL) {
5199 dump_dir(os);
5200 } else if (zopt_objects > 0 && !dump_opt['m']) {
5201 dump_dir(spa->spa_meta_objset);
5202 } else {
5203 dump_zpool(spa);
5204 }
5205 } else {
5206 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR;
5207 flagbits['c'] = ZDB_FLAG_CHECKSUM;
5208 flagbits['d'] = ZDB_FLAG_DECOMPRESS;
5209 flagbits['e'] = ZDB_FLAG_BSWAP;
5210 flagbits['g'] = ZDB_FLAG_GBH;
5211 flagbits['i'] = ZDB_FLAG_INDIRECT;
5212 flagbits['p'] = ZDB_FLAG_PHYS;
5213 flagbits['r'] = ZDB_FLAG_RAW;
5214
5215 for (int i = 0; i < argc; i++)
5216 zdb_read_block(argv[i], spa);
5217 }
5218
5219 if (os != NULL)
5220 close_objset(os, FTAG);
5221 else
5222 spa_close(spa, FTAG);
5223
5224 fuid_table_destroy();
5225
5226 dump_debug_buffer();
5227
5228 libzfs_fini(g_zfs);
5229 kernel_fini();
5230
5231 return (error);
5232 }
ZFS On Linux mirror for PVE