1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2017 by Delphix. All rights reserved. 25 * Copyright (c) 2014 Integros [integros.com] 26 * Copyright 2017 Nexenta Systems, Inc. 27 * Copyright 2017 RackTop Systems. 28 */ 29 30 #include <stdio.h> 31 #include <unistd.h> 32 #include <stdio_ext.h> 33 #include <stdlib.h> 34 #include <ctype.h> 35 #include <sys/zfs_context.h> 36 #include <sys/spa.h> 37 #include <sys/spa_impl.h> 38 #include <sys/dmu.h> 39 #include <sys/zap.h> 40 #include <sys/fs/zfs.h> 41 #include <sys/zfs_znode.h> 42 #include <sys/zfs_sa.h> 43 #include <sys/sa.h> 44 #include <sys/sa_impl.h> 45 #include <sys/vdev.h> 46 #include <sys/vdev_impl.h> 47 #include <sys/metaslab_impl.h> 48 #include <sys/dmu_objset.h> 49 #include <sys/dsl_dir.h> 50 #include <sys/dsl_dataset.h> 51 #include <sys/dsl_pool.h> 52 #include <sys/dbuf.h> 53 #include <sys/zil.h> 54 #include <sys/zil_impl.h> 55 #include <sys/stat.h> 56 #include <sys/resource.h> 57 #include <sys/dmu_traverse.h> 58 #include <sys/zio_checksum.h> 59 #include <sys/zio_compress.h> 60 #include <sys/zfs_fuid.h> 61 #include <sys/arc.h> 62 #include <sys/ddt.h> 63 #include <sys/zfeature.h> 64 #include <sys/abd.h> 65 #include <sys/blkptr.h> 66 #include <sys/dsl_scan.h> 67 #include <zfs_comutil.h> 68 #include <libcmdutils.h> 69 #undef verify 70 #include <libzfs.h> 71 72 #include "zdb.h" 73 74 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 75 zio_compress_table[(idx)].ci_name : "UNKNOWN") 76 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 77 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 78 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 79 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 80 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 81 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 82 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \ 83 DMU_OT_ZAP_OTHER : \ 84 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \ 85 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES) 86 87 #ifndef lint 88 extern int reference_tracking_enable; 89 extern boolean_t zfs_recover; 90 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 91 extern int zfs_vdev_async_read_max_active; 92 extern int aok; 93 extern boolean_t spa_load_verify_dryrun; 94 #else 95 int reference_tracking_enable; 96 boolean_t zfs_recover; 97 uint64_t zfs_arc_max, zfs_arc_meta_limit; 98 int zfs_vdev_async_read_max_active; 99 int aok; 100 boolean_t spa_load_verify_dryrun; 101 #endif 102 103 static const char cmdname[] = "zdb"; 104 uint8_t dump_opt[256]; 105 106 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 107 108 uint64_t *zopt_object = NULL; 109 static unsigned zopt_objects = 0; 110 libzfs_handle_t *g_zfs; 111 uint64_t max_inflight = 1000; 112 static int leaked_objects = 0; 113 114 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 115 static void mos_obj_refd(uint64_t); 116 117 /* 118 * These libumem hooks provide a reasonable set of defaults for the allocator's 119 * debugging facilities. 120 */ 121 const char * 122 _umem_debug_init() 123 { 124 return ("default,verbose"); /* $UMEM_DEBUG setting */ 125 } 126 127 const char * 128 _umem_logging_init(void) 129 { 130 return ("fail,contents"); /* $UMEM_LOGGING setting */ 131 } 132 133 static void 134 usage(void) 135 { 136 (void) fprintf(stderr, 137 "Usage:\t%s [-AbcdDFGhikLMPsvX] [-e [-V] [-p <path> ...]] " 138 "[-I <inflight I/Os>]\n" 139 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 140 "\t\t[<poolname> [<object> ...]]\n" 141 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> " 142 "[<object> ...]\n" 143 "\t%s -C [-A] [-U <cache>]\n" 144 "\t%s -l [-Aqu] <device>\n" 145 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] " 146 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n" 147 "\t%s -O <dataset> <path>\n" 148 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n" 149 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" 150 "\t%s -E [-A] word0:word1:...:word15\n" 151 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] " 152 "<poolname>\n\n", 153 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, 154 cmdname, cmdname); 155 156 (void) fprintf(stderr, " Dataset name must include at least one " 157 "separator character '/' or '@'\n"); 158 (void) fprintf(stderr, " If dataset name is specified, only that " 159 "dataset is dumped\n"); 160 (void) fprintf(stderr, " If object numbers are specified, only " 161 "those objects are dumped\n\n"); 162 (void) fprintf(stderr, " Options to control amount of output:\n"); 163 (void) fprintf(stderr, " -b block statistics\n"); 164 (void) fprintf(stderr, " -c checksum all metadata (twice for " 165 "all data) blocks\n"); 166 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 167 (void) fprintf(stderr, " -d dataset(s)\n"); 168 (void) fprintf(stderr, " -D dedup statistics\n"); 169 (void) fprintf(stderr, " -E decode and display block from an " 170 "embedded block pointer\n"); 171 (void) fprintf(stderr, " -h pool history\n"); 172 (void) fprintf(stderr, " -i intent logs\n"); 173 (void) fprintf(stderr, " -l read label contents\n"); 174 (void) fprintf(stderr, " -k examine the checkpointed state " 175 "of the pool\n"); 176 (void) fprintf(stderr, " -L disable leak tracking (do not " 177 "load spacemaps)\n"); 178 (void) fprintf(stderr, " -m metaslabs\n"); 179 (void) fprintf(stderr, " -M metaslab groups\n"); 180 (void) fprintf(stderr, " -O perform object lookups by path\n"); 181 (void) fprintf(stderr, " -R read and display block from a " 182 "device\n"); 183 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 184 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 185 (void) fprintf(stderr, " -v verbose (applies to all " 186 "others)\n\n"); 187 (void) fprintf(stderr, " Below options are intended for use " 188 "with other options:\n"); 189 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 190 "panic recovery (-AA) or both (-AAA)\n"); 191 (void) fprintf(stderr, " -e pool is exported/destroyed/" 192 "has altroot/not in a cachefile\n"); 193 (void) fprintf(stderr, " -F attempt automatic rewind within " 194 "safe range of transaction groups\n"); 195 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 196 "exiting\n"); 197 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 198 "specify the maximum number of " 199 "checksumming I/Os [default is 200]\n"); 200 (void) fprintf(stderr, " -o <variable>=<value> set global " 201 "variable to an unsigned 32-bit integer value\n"); 202 (void) fprintf(stderr, " -p <path> -- use one or more with " 203 "-e to specify path to vdev dir\n"); 204 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 205 (void) fprintf(stderr, " -q don't print label contents\n"); 206 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 207 "searching for uberblocks\n"); 208 (void) fprintf(stderr, " -u uberblock\n"); 209 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 210 "cachefile\n"); 211 (void) fprintf(stderr, " -V do verbatim import\n"); 212 (void) fprintf(stderr, " -x <dumpdir> -- " 213 "dump all read blocks into specified directory\n"); 214 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 215 "work with dataset)\n\n"); 216 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 217 "to make only that option verbose\n"); 218 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 219 exit(1); 220 } 221 222 static void 223 dump_debug_buffer() 224 { 225 if (dump_opt['G']) { 226 (void) printf("\n"); 227 zfs_dbgmsg_print("zdb"); 228 } 229 } 230 231 /* 232 * Called for usage errors that are discovered after a call to spa_open(), 233 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 234 */ 235 236 static void 237 fatal(const char *fmt, ...) 238 { 239 va_list ap; 240 241 va_start(ap, fmt); 242 (void) fprintf(stderr, "%s: ", cmdname); 243 (void) vfprintf(stderr, fmt, ap); 244 va_end(ap); 245 (void) fprintf(stderr, "\n"); 246 247 dump_debug_buffer(); 248 249 exit(1); 250 } 251 252 /* ARGSUSED */ 253 static void 254 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 255 { 256 nvlist_t *nv; 257 size_t nvsize = *(uint64_t *)data; 258 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 259 260 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 261 262 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 263 264 umem_free(packed, nvsize); 265 266 dump_nvlist(nv, 8); 267 268 nvlist_free(nv); 269 } 270 271 /* ARGSUSED */ 272 static void 273 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 274 { 275 spa_history_phys_t *shp = data; 276 277 if (shp == NULL) 278 return; 279 280 (void) printf("\t\tpool_create_len = %llu\n", 281 (u_longlong_t)shp->sh_pool_create_len); 282 (void) printf("\t\tphys_max_off = %llu\n", 283 (u_longlong_t)shp->sh_phys_max_off); 284 (void) printf("\t\tbof = %llu\n", 285 (u_longlong_t)shp->sh_bof); 286 (void) printf("\t\teof = %llu\n", 287 (u_longlong_t)shp->sh_eof); 288 (void) printf("\t\trecords_lost = %llu\n", 289 (u_longlong_t)shp->sh_records_lost); 290 } 291 292 static void 293 zdb_nicenum(uint64_t num, char *buf, size_t buflen) 294 { 295 if (dump_opt['P']) 296 (void) snprintf(buf, buflen, "%llu", (longlong_t)num); 297 else 298 nicenum(num, buf, sizeof (buf)); 299 } 300 301 static const char histo_stars[] = "****************************************"; 302 static const uint64_t histo_width = sizeof (histo_stars) - 1; 303 304 static void 305 dump_histogram(const uint64_t *histo, int size, int offset) 306 { 307 int i; 308 int minidx = size - 1; 309 int maxidx = 0; 310 uint64_t max = 0; 311 312 for (i = 0; i < size; i++) { 313 if (histo[i] > max) 314 max = histo[i]; 315 if (histo[i] > 0 && i > maxidx) 316 maxidx = i; 317 if (histo[i] > 0 && i < minidx) 318 minidx = i; 319 } 320 321 if (max < histo_width) 322 max = histo_width; 323 324 for (i = minidx; i <= maxidx; i++) { 325 (void) printf("\t\t\t%3u: %6llu %s\n", 326 i + offset, (u_longlong_t)histo[i], 327 &histo_stars[(max - histo[i]) * histo_width / max]); 328 } 329 } 330 331 static void 332 dump_zap_stats(objset_t *os, uint64_t object) 333 { 334 int error; 335 zap_stats_t zs; 336 337 error = zap_get_stats(os, object, &zs); 338 if (error) 339 return; 340 341 if (zs.zs_ptrtbl_len == 0) { 342 ASSERT(zs.zs_num_blocks == 1); 343 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 344 (u_longlong_t)zs.zs_blocksize, 345 (u_longlong_t)zs.zs_num_entries); 346 return; 347 } 348 349 (void) printf("\tFat ZAP stats:\n"); 350 351 (void) printf("\t\tPointer table:\n"); 352 (void) printf("\t\t\t%llu elements\n", 353 (u_longlong_t)zs.zs_ptrtbl_len); 354 (void) printf("\t\t\tzt_blk: %llu\n", 355 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 356 (void) printf("\t\t\tzt_numblks: %llu\n", 357 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 358 (void) printf("\t\t\tzt_shift: %llu\n", 359 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 360 (void) printf("\t\t\tzt_blks_copied: %llu\n", 361 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 362 (void) printf("\t\t\tzt_nextblk: %llu\n", 363 (u_longlong_t)zs.zs_ptrtbl_nextblk); 364 365 (void) printf("\t\tZAP entries: %llu\n", 366 (u_longlong_t)zs.zs_num_entries); 367 (void) printf("\t\tLeaf blocks: %llu\n", 368 (u_longlong_t)zs.zs_num_leafs); 369 (void) printf("\t\tTotal blocks: %llu\n", 370 (u_longlong_t)zs.zs_num_blocks); 371 (void) printf("\t\tzap_block_type: 0x%llx\n", 372 (u_longlong_t)zs.zs_block_type); 373 (void) printf("\t\tzap_magic: 0x%llx\n", 374 (u_longlong_t)zs.zs_magic); 375 (void) printf("\t\tzap_salt: 0x%llx\n", 376 (u_longlong_t)zs.zs_salt); 377 378 (void) printf("\t\tLeafs with 2^n pointers:\n"); 379 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 380 381 (void) printf("\t\tBlocks with n*5 entries:\n"); 382 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 383 384 (void) printf("\t\tBlocks n/10 full:\n"); 385 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 386 387 (void) printf("\t\tEntries with n chunks:\n"); 388 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 389 390 (void) printf("\t\tBuckets with n entries:\n"); 391 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 392 } 393 394 /*ARGSUSED*/ 395 static void 396 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 397 { 398 } 399 400 /*ARGSUSED*/ 401 static void 402 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 403 { 404 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 405 } 406 407 /*ARGSUSED*/ 408 static void 409 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 410 { 411 } 412 413 /*ARGSUSED*/ 414 static void 415 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 416 { 417 } 418 419 /*ARGSUSED*/ 420 static void 421 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 422 { 423 zap_cursor_t zc; 424 zap_attribute_t attr; 425 void *prop; 426 unsigned i; 427 428 dump_zap_stats(os, object); 429 (void) printf("\n"); 430 431 for (zap_cursor_init(&zc, os, object); 432 zap_cursor_retrieve(&zc, &attr) == 0; 433 zap_cursor_advance(&zc)) { 434 (void) printf("\t\t%s = ", attr.za_name); 435 if (attr.za_num_integers == 0) { 436 (void) printf("\n"); 437 continue; 438 } 439 prop = umem_zalloc(attr.za_num_integers * 440 attr.za_integer_length, UMEM_NOFAIL); 441 (void) zap_lookup(os, object, attr.za_name, 442 attr.za_integer_length, attr.za_num_integers, prop); 443 if (attr.za_integer_length == 1) { 444 (void) printf("%s", (char *)prop); 445 } else { 446 for (i = 0; i < attr.za_num_integers; i++) { 447 switch (attr.za_integer_length) { 448 case 2: 449 (void) printf("%u ", 450 ((uint16_t *)prop)[i]); 451 break; 452 case 4: 453 (void) printf("%u ", 454 ((uint32_t *)prop)[i]); 455 break; 456 case 8: 457 (void) printf("%lld ", 458 (u_longlong_t)((int64_t *)prop)[i]); 459 break; 460 } 461 } 462 } 463 (void) printf("\n"); 464 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 465 } 466 zap_cursor_fini(&zc); 467 } 468 469 static void 470 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 471 { 472 bpobj_phys_t *bpop = data; 473 char bytes[32], comp[32], uncomp[32]; 474 475 /* make sure the output won't get truncated */ 476 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 477 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 478 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 479 480 if (bpop == NULL) 481 return; 482 483 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes)); 484 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp)); 485 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp)); 486 487 (void) printf("\t\tnum_blkptrs = %llu\n", 488 (u_longlong_t)bpop->bpo_num_blkptrs); 489 (void) printf("\t\tbytes = %s\n", bytes); 490 if (size >= BPOBJ_SIZE_V1) { 491 (void) printf("\t\tcomp = %s\n", comp); 492 (void) printf("\t\tuncomp = %s\n", uncomp); 493 } 494 if (size >= sizeof (*bpop)) { 495 (void) printf("\t\tsubobjs = %llu\n", 496 (u_longlong_t)bpop->bpo_subobjs); 497 (void) printf("\t\tnum_subobjs = %llu\n", 498 (u_longlong_t)bpop->bpo_num_subobjs); 499 } 500 501 if (dump_opt['d'] < 5) 502 return; 503 504 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 505 char blkbuf[BP_SPRINTF_LEN]; 506 blkptr_t bp; 507 508 int err = dmu_read(os, object, 509 i * sizeof (bp), sizeof (bp), &bp, 0); 510 if (err != 0) { 511 (void) printf("got error %u from dmu_read\n", err); 512 break; 513 } 514 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 515 (void) printf("\t%s\n", blkbuf); 516 } 517 } 518 519 /* ARGSUSED */ 520 static void 521 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 522 { 523 dmu_object_info_t doi; 524 525 VERIFY0(dmu_object_info(os, object, &doi)); 526 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 527 528 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 529 if (err != 0) { 530 (void) printf("got error %u from dmu_read\n", err); 531 kmem_free(subobjs, doi.doi_max_offset); 532 return; 533 } 534 535 int64_t last_nonzero = -1; 536 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 537 if (subobjs[i] != 0) 538 last_nonzero = i; 539 } 540 541 for (int64_t i = 0; i <= last_nonzero; i++) { 542 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 543 } 544 kmem_free(subobjs, doi.doi_max_offset); 545 } 546 547 /*ARGSUSED*/ 548 static void 549 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 550 { 551 dump_zap_stats(os, object); 552 /* contents are printed elsewhere, properly decoded */ 553 } 554 555 /*ARGSUSED*/ 556 static void 557 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 558 { 559 zap_cursor_t zc; 560 zap_attribute_t attr; 561 562 dump_zap_stats(os, object); 563 (void) printf("\n"); 564 565 for (zap_cursor_init(&zc, os, object); 566 zap_cursor_retrieve(&zc, &attr) == 0; 567 zap_cursor_advance(&zc)) { 568 (void) printf("\t\t%s = ", attr.za_name); 569 if (attr.za_num_integers == 0) { 570 (void) printf("\n"); 571 continue; 572 } 573 (void) printf(" %llx : [%d:%d:%d]\n", 574 (u_longlong_t)attr.za_first_integer, 575 (int)ATTR_LENGTH(attr.za_first_integer), 576 (int)ATTR_BSWAP(attr.za_first_integer), 577 (int)ATTR_NUM(attr.za_first_integer)); 578 } 579 zap_cursor_fini(&zc); 580 } 581 582 /*ARGSUSED*/ 583 static void 584 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 585 { 586 zap_cursor_t zc; 587 zap_attribute_t attr; 588 uint16_t *layout_attrs; 589 unsigned i; 590 591 dump_zap_stats(os, object); 592 (void) printf("\n"); 593 594 for (zap_cursor_init(&zc, os, object); 595 zap_cursor_retrieve(&zc, &attr) == 0; 596 zap_cursor_advance(&zc)) { 597 (void) printf("\t\t%s = [", attr.za_name); 598 if (attr.za_num_integers == 0) { 599 (void) printf("\n"); 600 continue; 601 } 602 603 VERIFY(attr.za_integer_length == 2); 604 layout_attrs = umem_zalloc(attr.za_num_integers * 605 attr.za_integer_length, UMEM_NOFAIL); 606 607 VERIFY(zap_lookup(os, object, attr.za_name, 608 attr.za_integer_length, 609 attr.za_num_integers, layout_attrs) == 0); 610 611 for (i = 0; i != attr.za_num_integers; i++) 612 (void) printf(" %d ", (int)layout_attrs[i]); 613 (void) printf("]\n"); 614 umem_free(layout_attrs, 615 attr.za_num_integers * attr.za_integer_length); 616 } 617 zap_cursor_fini(&zc); 618 } 619 620 /*ARGSUSED*/ 621 static void 622 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 623 { 624 zap_cursor_t zc; 625 zap_attribute_t attr; 626 const char *typenames[] = { 627 /* 0 */ "not specified", 628 /* 1 */ "FIFO", 629 /* 2 */ "Character Device", 630 /* 3 */ "3 (invalid)", 631 /* 4 */ "Directory", 632 /* 5 */ "5 (invalid)", 633 /* 6 */ "Block Device", 634 /* 7 */ "7 (invalid)", 635 /* 8 */ "Regular File", 636 /* 9 */ "9 (invalid)", 637 /* 10 */ "Symbolic Link", 638 /* 11 */ "11 (invalid)", 639 /* 12 */ "Socket", 640 /* 13 */ "Door", 641 /* 14 */ "Event Port", 642 /* 15 */ "15 (invalid)", 643 }; 644 645 dump_zap_stats(os, object); 646 (void) printf("\n"); 647 648 for (zap_cursor_init(&zc, os, object); 649 zap_cursor_retrieve(&zc, &attr) == 0; 650 zap_cursor_advance(&zc)) { 651 (void) printf("\t\t%s = %lld (type: %s)\n", 652 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 653 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 654 } 655 zap_cursor_fini(&zc); 656 } 657 658 static int 659 get_dtl_refcount(vdev_t *vd) 660 { 661 int refcount = 0; 662 663 if (vd->vdev_ops->vdev_op_leaf) { 664 space_map_t *sm = vd->vdev_dtl_sm; 665 666 if (sm != NULL && 667 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 668 return (1); 669 return (0); 670 } 671 672 for (unsigned c = 0; c < vd->vdev_children; c++) 673 refcount += get_dtl_refcount(vd->vdev_child[c]); 674 return (refcount); 675 } 676 677 static int 678 get_metaslab_refcount(vdev_t *vd) 679 { 680 int refcount = 0; 681 682 if (vd->vdev_top == vd) { 683 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 684 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 685 686 if (sm != NULL && 687 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 688 refcount++; 689 } 690 } 691 for (unsigned c = 0; c < vd->vdev_children; c++) 692 refcount += get_metaslab_refcount(vd->vdev_child[c]); 693 694 return (refcount); 695 } 696 697 static int 698 get_obsolete_refcount(vdev_t *vd) 699 { 700 int refcount = 0; 701 702 uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd); 703 if (vd->vdev_top == vd && obsolete_sm_obj != 0) { 704 dmu_object_info_t doi; 705 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset, 706 obsolete_sm_obj, &doi)); 707 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 708 refcount++; 709 } 710 } else { 711 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL); 712 ASSERT3U(obsolete_sm_obj, ==, 0); 713 } 714 for (unsigned c = 0; c < vd->vdev_children; c++) { 715 refcount += get_obsolete_refcount(vd->vdev_child[c]); 716 } 717 718 return (refcount); 719 } 720 721 static int 722 get_prev_obsolete_spacemap_refcount(spa_t *spa) 723 { 724 uint64_t prev_obj = 725 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object; 726 if (prev_obj != 0) { 727 dmu_object_info_t doi; 728 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi)); 729 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 730 return (1); 731 } 732 } 733 return (0); 734 } 735 736 static int 737 get_checkpoint_refcount(vdev_t *vd) 738 { 739 int refcount = 0; 740 741 if (vd->vdev_top == vd && vd->vdev_top_zap != 0 && 742 zap_contains(spa_meta_objset(vd->vdev_spa), 743 vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0) 744 refcount++; 745 746 for (uint64_t c = 0; c < vd->vdev_children; c++) 747 refcount += get_checkpoint_refcount(vd->vdev_child[c]); 748 749 return (refcount); 750 } 751 752 static int 753 verify_spacemap_refcounts(spa_t *spa) 754 { 755 uint64_t expected_refcount = 0; 756 uint64_t actual_refcount; 757 758 (void) feature_get_refcount(spa, 759 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 760 &expected_refcount); 761 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 762 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 763 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev); 764 actual_refcount += get_prev_obsolete_spacemap_refcount(spa); 765 actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev); 766 767 if (expected_refcount != actual_refcount) { 768 (void) printf("space map refcount mismatch: expected %lld != " 769 "actual %lld\n", 770 (longlong_t)expected_refcount, 771 (longlong_t)actual_refcount); 772 return (2); 773 } 774 return (0); 775 } 776 777 static void 778 dump_spacemap(objset_t *os, space_map_t *sm) 779 { 780 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 781 "INVALID", "INVALID", "INVALID", "INVALID" }; 782 783 if (sm == NULL) 784 return; 785 786 (void) printf("space map object %llu:\n", 787 (longlong_t)sm->sm_phys->smp_object); 788 (void) printf(" smp_objsize = 0x%llx\n", 789 (longlong_t)sm->sm_phys->smp_objsize); 790 (void) printf(" smp_alloc = 0x%llx\n", 791 (longlong_t)sm->sm_phys->smp_alloc); 792 793 /* 794 * Print out the freelist entries in both encoded and decoded form. 795 */ 796 uint8_t mapshift = sm->sm_shift; 797 int64_t alloc = 0; 798 uint64_t word; 799 for (uint64_t offset = 0; offset < space_map_length(sm); 800 offset += sizeof (word)) { 801 802 VERIFY0(dmu_read(os, space_map_object(sm), offset, 803 sizeof (word), &word, DMU_READ_PREFETCH)); 804 805 if (sm_entry_is_debug(word)) { 806 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 807 (u_longlong_t)(offset / sizeof (word)), 808 ddata[SM_DEBUG_ACTION_DECODE(word)], 809 (u_longlong_t)SM_DEBUG_TXG_DECODE(word), 810 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(word)); 811 continue; 812 } 813 814 uint8_t words; 815 char entry_type; 816 uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID; 817 818 if (sm_entry_is_single_word(word)) { 819 entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ? 820 'A' : 'F'; 821 entry_off = (SM_OFFSET_DECODE(word) << mapshift) + 822 sm->sm_start; 823 entry_run = SM_RUN_DECODE(word) << mapshift; 824 words = 1; 825 } else { 826 /* it is a two-word entry so we read another word */ 827 ASSERT(sm_entry_is_double_word(word)); 828 829 uint64_t extra_word; 830 offset += sizeof (extra_word); 831 VERIFY0(dmu_read(os, space_map_object(sm), offset, 832 sizeof (extra_word), &extra_word, 833 DMU_READ_PREFETCH)); 834 835 ASSERT3U(offset, <=, space_map_length(sm)); 836 837 entry_run = SM2_RUN_DECODE(word) << mapshift; 838 entry_vdev = SM2_VDEV_DECODE(word); 839 entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ? 840 'A' : 'F'; 841 entry_off = (SM2_OFFSET_DECODE(extra_word) << 842 mapshift) + sm->sm_start; 843 words = 2; 844 } 845 846 (void) printf("\t [%6llu] %c range:" 847 " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n", 848 (u_longlong_t)(offset / sizeof (word)), 849 entry_type, (u_longlong_t)entry_off, 850 (u_longlong_t)(entry_off + entry_run), 851 (u_longlong_t)entry_run, 852 (u_longlong_t)entry_vdev, words); 853 854 if (entry_type == 'A') 855 alloc += entry_run; 856 else 857 alloc -= entry_run; 858 } 859 if ((uint64_t)alloc != space_map_allocated(sm)) { 860 (void) printf("space_map_object alloc (%lld) INCONSISTENT " 861 "with space map summary (%lld)\n", 862 (longlong_t)space_map_allocated(sm), (longlong_t)alloc); 863 } 864 } 865 866 static void 867 dump_metaslab_stats(metaslab_t *msp) 868 { 869 char maxbuf[32]; 870 range_tree_t *rt = msp->ms_allocatable; 871 avl_tree_t *t = &msp->ms_allocatable_by_size; 872 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 873 874 /* max sure nicenum has enough space */ 875 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ); 876 877 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf)); 878 879 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 880 "segments", avl_numnodes(t), "maxsize", maxbuf, 881 "freepct", free_pct); 882 (void) printf("\tIn-memory histogram:\n"); 883 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 884 } 885 886 static void 887 dump_metaslab(metaslab_t *msp) 888 { 889 vdev_t *vd = msp->ms_group->mg_vd; 890 spa_t *spa = vd->vdev_spa; 891 space_map_t *sm = msp->ms_sm; 892 char freebuf[32]; 893 894 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf, 895 sizeof (freebuf)); 896 897 (void) printf( 898 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 899 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 900 (u_longlong_t)space_map_object(sm), freebuf); 901 902 if (dump_opt['m'] > 2 && !dump_opt['L']) { 903 mutex_enter(&msp->ms_lock); 904 metaslab_load_wait(msp); 905 if (!msp->ms_loaded) { 906 VERIFY0(metaslab_load(msp)); 907 range_tree_stat_verify(msp->ms_allocatable); 908 } 909 dump_metaslab_stats(msp); 910 metaslab_unload(msp); 911 mutex_exit(&msp->ms_lock); 912 } 913 914 if (dump_opt['m'] > 1 && sm != NULL && 915 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 916 /* 917 * The space map histogram represents free space in chunks 918 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 919 */ 920 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 921 (u_longlong_t)msp->ms_fragmentation); 922 dump_histogram(sm->sm_phys->smp_histogram, 923 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 924 } 925 926 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 927 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 928 929 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 930 } 931 } 932 933 static void 934 print_vdev_metaslab_header(vdev_t *vd) 935 { 936 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 937 (u_longlong_t)vd->vdev_id, 938 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 939 "offset", "spacemap", "free"); 940 (void) printf("\t%15s %19s %15s %10s\n", 941 "---------------", "-------------------", 942 "---------------", "-------------"); 943 } 944 945 static void 946 dump_metaslab_groups(spa_t *spa) 947 { 948 vdev_t *rvd = spa->spa_root_vdev; 949 metaslab_class_t *mc = spa_normal_class(spa); 950 uint64_t fragmentation; 951 952 metaslab_class_histogram_verify(mc); 953 954 for (unsigned c = 0; c < rvd->vdev_children; c++) { 955 vdev_t *tvd = rvd->vdev_child[c]; 956 metaslab_group_t *mg = tvd->vdev_mg; 957 958 if (mg->mg_class != mc) 959 continue; 960 961 metaslab_group_histogram_verify(mg); 962 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 963 964 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 965 "fragmentation", 966 (u_longlong_t)tvd->vdev_id, 967 (u_longlong_t)tvd->vdev_ms_count); 968 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 969 (void) printf("%3s\n", "-"); 970 } else { 971 (void) printf("%3llu%%\n", 972 (u_longlong_t)mg->mg_fragmentation); 973 } 974 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 975 } 976 977 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 978 fragmentation = metaslab_class_fragmentation(mc); 979 if (fragmentation == ZFS_FRAG_INVALID) 980 (void) printf("\t%3s\n", "-"); 981 else 982 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 983 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 984 } 985 986 static void 987 print_vdev_indirect(vdev_t *vd) 988 { 989 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 990 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 991 vdev_indirect_births_t *vib = vd->vdev_indirect_births; 992 993 if (vim == NULL) { 994 ASSERT3P(vib, ==, NULL); 995 return; 996 } 997 998 ASSERT3U(vdev_indirect_mapping_object(vim), ==, 999 vic->vic_mapping_object); 1000 ASSERT3U(vdev_indirect_births_object(vib), ==, 1001 vic->vic_births_object); 1002 1003 (void) printf("indirect births obj %llu:\n", 1004 (longlong_t)vic->vic_births_object); 1005 (void) printf(" vib_count = %llu\n", 1006 (longlong_t)vdev_indirect_births_count(vib)); 1007 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) { 1008 vdev_indirect_birth_entry_phys_t *cur_vibe = 1009 &vib->vib_entries[i]; 1010 (void) printf("\toffset %llx -> txg %llu\n", 1011 (longlong_t)cur_vibe->vibe_offset, 1012 (longlong_t)cur_vibe->vibe_phys_birth_txg); 1013 } 1014 (void) printf("\n"); 1015 1016 (void) printf("indirect mapping obj %llu:\n", 1017 (longlong_t)vic->vic_mapping_object); 1018 (void) printf(" vim_max_offset = 0x%llx\n", 1019 (longlong_t)vdev_indirect_mapping_max_offset(vim)); 1020 (void) printf(" vim_bytes_mapped = 0x%llx\n", 1021 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim)); 1022 (void) printf(" vim_count = %llu\n", 1023 (longlong_t)vdev_indirect_mapping_num_entries(vim)); 1024 1025 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3) 1026 return; 1027 1028 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim); 1029 1030 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 1031 vdev_indirect_mapping_entry_phys_t *vimep = 1032 &vim->vim_entries[i]; 1033 (void) printf("\t<%llx:%llx:%llx> -> " 1034 "<%llx:%llx:%llx> (%x obsolete)\n", 1035 (longlong_t)vd->vdev_id, 1036 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 1037 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1038 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst), 1039 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst), 1040 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1041 counts[i]); 1042 } 1043 (void) printf("\n"); 1044 1045 uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd); 1046 if (obsolete_sm_object != 0) { 1047 objset_t *mos = vd->vdev_spa->spa_meta_objset; 1048 (void) printf("obsolete space map object %llu:\n", 1049 (u_longlong_t)obsolete_sm_object); 1050 ASSERT(vd->vdev_obsolete_sm != NULL); 1051 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==, 1052 obsolete_sm_object); 1053 dump_spacemap(mos, vd->vdev_obsolete_sm); 1054 (void) printf("\n"); 1055 } 1056 } 1057 1058 static void 1059 dump_metaslabs(spa_t *spa) 1060 { 1061 vdev_t *vd, *rvd = spa->spa_root_vdev; 1062 uint64_t m, c = 0, children = rvd->vdev_children; 1063 1064 (void) printf("\nMetaslabs:\n"); 1065 1066 if (!dump_opt['d'] && zopt_objects > 0) { 1067 c = zopt_object[0]; 1068 1069 if (c >= children) 1070 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 1071 1072 if (zopt_objects > 1) { 1073 vd = rvd->vdev_child[c]; 1074 print_vdev_metaslab_header(vd); 1075 1076 for (m = 1; m < zopt_objects; m++) { 1077 if (zopt_object[m] < vd->vdev_ms_count) 1078 dump_metaslab( 1079 vd->vdev_ms[zopt_object[m]]); 1080 else 1081 (void) fprintf(stderr, "bad metaslab " 1082 "number %llu\n", 1083 (u_longlong_t)zopt_object[m]); 1084 } 1085 (void) printf("\n"); 1086 return; 1087 } 1088 children = c + 1; 1089 } 1090 for (; c < children; c++) { 1091 vd = rvd->vdev_child[c]; 1092 print_vdev_metaslab_header(vd); 1093 1094 print_vdev_indirect(vd); 1095 1096 for (m = 0; m < vd->vdev_ms_count; m++) 1097 dump_metaslab(vd->vdev_ms[m]); 1098 (void) printf("\n"); 1099 } 1100 } 1101 1102 static void 1103 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 1104 { 1105 const ddt_phys_t *ddp = dde->dde_phys; 1106 const ddt_key_t *ddk = &dde->dde_key; 1107 const char *types[4] = { "ditto", "single", "double", "triple" }; 1108 char blkbuf[BP_SPRINTF_LEN]; 1109 blkptr_t blk; 1110 1111 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 1112 if (ddp->ddp_phys_birth == 0) 1113 continue; 1114 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 1115 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 1116 (void) printf("index %llx refcnt %llu %s %s\n", 1117 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 1118 types[p], blkbuf); 1119 } 1120 } 1121 1122 static void 1123 dump_dedup_ratio(const ddt_stat_t *dds) 1124 { 1125 double rL, rP, rD, D, dedup, compress, copies; 1126 1127 if (dds->dds_blocks == 0) 1128 return; 1129 1130 rL = (double)dds->dds_ref_lsize; 1131 rP = (double)dds->dds_ref_psize; 1132 rD = (double)dds->dds_ref_dsize; 1133 D = (double)dds->dds_dsize; 1134 1135 dedup = rD / D; 1136 compress = rL / rP; 1137 copies = rD / rP; 1138 1139 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 1140 "dedup * compress / copies = %.2f\n\n", 1141 dedup, compress, copies, dedup * compress / copies); 1142 } 1143 1144 static void 1145 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 1146 { 1147 char name[DDT_NAMELEN]; 1148 ddt_entry_t dde; 1149 uint64_t walk = 0; 1150 dmu_object_info_t doi; 1151 uint64_t count, dspace, mspace; 1152 int error; 1153 1154 error = ddt_object_info(ddt, type, class, &doi); 1155 1156 if (error == ENOENT) 1157 return; 1158 ASSERT(error == 0); 1159 1160 if ((count = ddt_object_count(ddt, type, class)) == 0) 1161 return; 1162 1163 dspace = doi.doi_physical_blocks_512 << 9; 1164 mspace = doi.doi_fill_count * doi.doi_data_block_size; 1165 1166 ddt_object_name(ddt, type, class, name); 1167 1168 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 1169 name, 1170 (u_longlong_t)count, 1171 (u_longlong_t)(dspace / count), 1172 (u_longlong_t)(mspace / count)); 1173 1174 if (dump_opt['D'] < 3) 1175 return; 1176 1177 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 1178 1179 if (dump_opt['D'] < 4) 1180 return; 1181 1182 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 1183 return; 1184 1185 (void) printf("%s contents:\n\n", name); 1186 1187 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 1188 dump_dde(ddt, &dde, walk); 1189 1190 ASSERT3U(error, ==, ENOENT); 1191 1192 (void) printf("\n"); 1193 } 1194 1195 static void 1196 dump_all_ddts(spa_t *spa) 1197 { 1198 ddt_histogram_t ddh_total; 1199 ddt_stat_t dds_total; 1200 1201 bzero(&ddh_total, sizeof (ddh_total)); 1202 bzero(&dds_total, sizeof (dds_total)); 1203 1204 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 1205 ddt_t *ddt = spa->spa_ddt[c]; 1206 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 1207 for (enum ddt_class class = 0; class < DDT_CLASSES; 1208 class++) { 1209 dump_ddt(ddt, type, class); 1210 } 1211 } 1212 } 1213 1214 ddt_get_dedup_stats(spa, &dds_total); 1215 1216 if (dds_total.dds_blocks == 0) { 1217 (void) printf("All DDTs are empty\n"); 1218 return; 1219 } 1220 1221 (void) printf("\n"); 1222 1223 if (dump_opt['D'] > 1) { 1224 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 1225 ddt_get_dedup_histogram(spa, &ddh_total); 1226 zpool_dump_ddt(&dds_total, &ddh_total); 1227 } 1228 1229 dump_dedup_ratio(&dds_total); 1230 } 1231 1232 static void 1233 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1234 { 1235 char *prefix = arg; 1236 1237 (void) printf("%s [%llu,%llu) length %llu\n", 1238 prefix, 1239 (u_longlong_t)start, 1240 (u_longlong_t)(start + size), 1241 (u_longlong_t)(size)); 1242 } 1243 1244 static void 1245 dump_dtl(vdev_t *vd, int indent) 1246 { 1247 spa_t *spa = vd->vdev_spa; 1248 boolean_t required; 1249 const char *name[DTL_TYPES] = { "missing", "partial", "scrub", 1250 "outage" }; 1251 char prefix[256]; 1252 1253 spa_vdev_state_enter(spa, SCL_NONE); 1254 required = vdev_dtl_required(vd); 1255 (void) spa_vdev_state_exit(spa, NULL, 0); 1256 1257 if (indent == 0) 1258 (void) printf("\nDirty time logs:\n\n"); 1259 1260 (void) printf("\t%*s%s [%s]\n", indent, "", 1261 vd->vdev_path ? vd->vdev_path : 1262 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1263 required ? "DTL-required" : "DTL-expendable"); 1264 1265 for (int t = 0; t < DTL_TYPES; t++) { 1266 range_tree_t *rt = vd->vdev_dtl[t]; 1267 if (range_tree_space(rt) == 0) 1268 continue; 1269 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1270 indent + 2, "", name[t]); 1271 range_tree_walk(rt, dump_dtl_seg, prefix); 1272 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1273 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1274 } 1275 1276 for (unsigned c = 0; c < vd->vdev_children; c++) 1277 dump_dtl(vd->vdev_child[c], indent + 4); 1278 } 1279 1280 static void 1281 dump_history(spa_t *spa) 1282 { 1283 nvlist_t **events = NULL; 1284 uint64_t resid, len, off = 0; 1285 uint_t num = 0; 1286 int error; 1287 time_t tsec; 1288 struct tm t; 1289 char tbuf[30]; 1290 char internalstr[MAXPATHLEN]; 1291 1292 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 1293 do { 1294 len = SPA_MAXBLOCKSIZE; 1295 1296 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1297 (void) fprintf(stderr, "Unable to read history: " 1298 "error %d\n", error); 1299 umem_free(buf, SPA_MAXBLOCKSIZE); 1300 return; 1301 } 1302 1303 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1304 break; 1305 1306 off -= resid; 1307 } while (len != 0); 1308 umem_free(buf, SPA_MAXBLOCKSIZE); 1309 1310 (void) printf("\nHistory:\n"); 1311 for (unsigned i = 0; i < num; i++) { 1312 uint64_t time, txg, ievent; 1313 char *cmd, *intstr; 1314 boolean_t printed = B_FALSE; 1315 1316 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1317 &time) != 0) 1318 goto next; 1319 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1320 &cmd) != 0) { 1321 if (nvlist_lookup_uint64(events[i], 1322 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1323 goto next; 1324 verify(nvlist_lookup_uint64(events[i], 1325 ZPOOL_HIST_TXG, &txg) == 0); 1326 verify(nvlist_lookup_string(events[i], 1327 ZPOOL_HIST_INT_STR, &intstr) == 0); 1328 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1329 goto next; 1330 1331 (void) snprintf(internalstr, 1332 sizeof (internalstr), 1333 "[internal %s txg:%ju] %s", 1334 zfs_history_event_names[ievent], (uintmax_t)txg, 1335 intstr); 1336 cmd = internalstr; 1337 } 1338 tsec = time; 1339 (void) localtime_r(&tsec, &t); 1340 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1341 (void) printf("%s %s\n", tbuf, cmd); 1342 printed = B_TRUE; 1343 1344 next: 1345 if (dump_opt['h'] > 1) { 1346 if (!printed) 1347 (void) printf("unrecognized record:\n"); 1348 dump_nvlist(events[i], 2); 1349 } 1350 } 1351 } 1352 1353 /*ARGSUSED*/ 1354 static void 1355 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1356 { 1357 } 1358 1359 static uint64_t 1360 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1361 const zbookmark_phys_t *zb) 1362 { 1363 if (dnp == NULL) { 1364 ASSERT(zb->zb_level < 0); 1365 if (zb->zb_object == 0) 1366 return (zb->zb_blkid); 1367 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1368 } 1369 1370 ASSERT(zb->zb_level >= 0); 1371 1372 return ((zb->zb_blkid << 1373 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1374 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1375 } 1376 1377 static void 1378 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1379 { 1380 const dva_t *dva = bp->blk_dva; 1381 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1382 1383 if (dump_opt['b'] >= 6) { 1384 snprintf_blkptr(blkbuf, buflen, bp); 1385 return; 1386 } 1387 1388 if (BP_IS_EMBEDDED(bp)) { 1389 (void) sprintf(blkbuf, 1390 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1391 (int)BPE_GET_ETYPE(bp), 1392 (u_longlong_t)BPE_GET_LSIZE(bp), 1393 (u_longlong_t)BPE_GET_PSIZE(bp), 1394 (u_longlong_t)bp->blk_birth); 1395 return; 1396 } 1397 1398 blkbuf[0] = '\0'; 1399 for (int i = 0; i < ndvas; i++) 1400 (void) snprintf(blkbuf + strlen(blkbuf), 1401 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1402 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1403 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1404 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1405 1406 if (BP_IS_HOLE(bp)) { 1407 (void) snprintf(blkbuf + strlen(blkbuf), 1408 buflen - strlen(blkbuf), 1409 "%llxL B=%llu", 1410 (u_longlong_t)BP_GET_LSIZE(bp), 1411 (u_longlong_t)bp->blk_birth); 1412 } else { 1413 (void) snprintf(blkbuf + strlen(blkbuf), 1414 buflen - strlen(blkbuf), 1415 "%llxL/%llxP F=%llu B=%llu/%llu", 1416 (u_longlong_t)BP_GET_LSIZE(bp), 1417 (u_longlong_t)BP_GET_PSIZE(bp), 1418 (u_longlong_t)BP_GET_FILL(bp), 1419 (u_longlong_t)bp->blk_birth, 1420 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1421 } 1422 } 1423 1424 static void 1425 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1426 const dnode_phys_t *dnp) 1427 { 1428 char blkbuf[BP_SPRINTF_LEN]; 1429 int l; 1430 1431 if (!BP_IS_EMBEDDED(bp)) { 1432 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1433 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1434 } 1435 1436 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1437 1438 ASSERT(zb->zb_level >= 0); 1439 1440 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1441 if (l == zb->zb_level) { 1442 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1443 } else { 1444 (void) printf(" "); 1445 } 1446 } 1447 1448 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1449 (void) printf("%s\n", blkbuf); 1450 } 1451 1452 static int 1453 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1454 blkptr_t *bp, const zbookmark_phys_t *zb) 1455 { 1456 int err = 0; 1457 1458 if (bp->blk_birth == 0) 1459 return (0); 1460 1461 print_indirect(bp, zb, dnp); 1462 1463 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1464 arc_flags_t flags = ARC_FLAG_WAIT; 1465 int i; 1466 blkptr_t *cbp; 1467 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1468 arc_buf_t *buf; 1469 uint64_t fill = 0; 1470 1471 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1472 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1473 if (err) 1474 return (err); 1475 ASSERT(buf->b_data); 1476 1477 /* recursively visit blocks below this */ 1478 cbp = buf->b_data; 1479 for (i = 0; i < epb; i++, cbp++) { 1480 zbookmark_phys_t czb; 1481 1482 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1483 zb->zb_level - 1, 1484 zb->zb_blkid * epb + i); 1485 err = visit_indirect(spa, dnp, cbp, &czb); 1486 if (err) 1487 break; 1488 fill += BP_GET_FILL(cbp); 1489 } 1490 if (!err) 1491 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1492 arc_buf_destroy(buf, &buf); 1493 } 1494 1495 return (err); 1496 } 1497 1498 /*ARGSUSED*/ 1499 static void 1500 dump_indirect(dnode_t *dn) 1501 { 1502 dnode_phys_t *dnp = dn->dn_phys; 1503 int j; 1504 zbookmark_phys_t czb; 1505 1506 (void) printf("Indirect blocks:\n"); 1507 1508 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1509 dn->dn_object, dnp->dn_nlevels - 1, 0); 1510 for (j = 0; j < dnp->dn_nblkptr; j++) { 1511 czb.zb_blkid = j; 1512 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1513 &dnp->dn_blkptr[j], &czb); 1514 } 1515 1516 (void) printf("\n"); 1517 } 1518 1519 /*ARGSUSED*/ 1520 static void 1521 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1522 { 1523 dsl_dir_phys_t *dd = data; 1524 time_t crtime; 1525 char nice[32]; 1526 1527 /* make sure nicenum has enough space */ 1528 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ); 1529 1530 if (dd == NULL) 1531 return; 1532 1533 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1534 1535 crtime = dd->dd_creation_time; 1536 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1537 (void) printf("\t\thead_dataset_obj = %llu\n", 1538 (u_longlong_t)dd->dd_head_dataset_obj); 1539 (void) printf("\t\tparent_dir_obj = %llu\n", 1540 (u_longlong_t)dd->dd_parent_obj); 1541 (void) printf("\t\torigin_obj = %llu\n", 1542 (u_longlong_t)dd->dd_origin_obj); 1543 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1544 (u_longlong_t)dd->dd_child_dir_zapobj); 1545 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); 1546 (void) printf("\t\tused_bytes = %s\n", nice); 1547 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); 1548 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1549 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); 1550 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1551 zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); 1552 (void) printf("\t\tquota = %s\n", nice); 1553 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); 1554 (void) printf("\t\treserved = %s\n", nice); 1555 (void) printf("\t\tprops_zapobj = %llu\n", 1556 (u_longlong_t)dd->dd_props_zapobj); 1557 (void) printf("\t\tdeleg_zapobj = %llu\n", 1558 (u_longlong_t)dd->dd_deleg_zapobj); 1559 (void) printf("\t\tflags = %llx\n", 1560 (u_longlong_t)dd->dd_flags); 1561 1562 #define DO(which) \ 1563 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ 1564 sizeof (nice)); \ 1565 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1566 DO(HEAD); 1567 DO(SNAP); 1568 DO(CHILD); 1569 DO(CHILD_RSRV); 1570 DO(REFRSRV); 1571 #undef DO 1572 (void) printf("\t\tclones = %llu\n", 1573 (u_longlong_t)dd->dd_clones); 1574 } 1575 1576 /*ARGSUSED*/ 1577 static void 1578 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1579 { 1580 dsl_dataset_phys_t *ds = data; 1581 time_t crtime; 1582 char used[32], compressed[32], uncompressed[32], unique[32]; 1583 char blkbuf[BP_SPRINTF_LEN]; 1584 1585 /* make sure nicenum has enough space */ 1586 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ); 1587 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ); 1588 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ); 1589 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ); 1590 1591 if (ds == NULL) 1592 return; 1593 1594 ASSERT(size == sizeof (*ds)); 1595 crtime = ds->ds_creation_time; 1596 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); 1597 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); 1598 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, 1599 sizeof (uncompressed)); 1600 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); 1601 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1602 1603 (void) printf("\t\tdir_obj = %llu\n", 1604 (u_longlong_t)ds->ds_dir_obj); 1605 (void) printf("\t\tprev_snap_obj = %llu\n", 1606 (u_longlong_t)ds->ds_prev_snap_obj); 1607 (void) printf("\t\tprev_snap_txg = %llu\n", 1608 (u_longlong_t)ds->ds_prev_snap_txg); 1609 (void) printf("\t\tnext_snap_obj = %llu\n", 1610 (u_longlong_t)ds->ds_next_snap_obj); 1611 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1612 (u_longlong_t)ds->ds_snapnames_zapobj); 1613 (void) printf("\t\tnum_children = %llu\n", 1614 (u_longlong_t)ds->ds_num_children); 1615 (void) printf("\t\tuserrefs_obj = %llu\n", 1616 (u_longlong_t)ds->ds_userrefs_obj); 1617 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1618 (void) printf("\t\tcreation_txg = %llu\n", 1619 (u_longlong_t)ds->ds_creation_txg); 1620 (void) printf("\t\tdeadlist_obj = %llu\n", 1621 (u_longlong_t)ds->ds_deadlist_obj); 1622 (void) printf("\t\tused_bytes = %s\n", used); 1623 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1624 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1625 (void) printf("\t\tunique = %s\n", unique); 1626 (void) printf("\t\tfsid_guid = %llu\n", 1627 (u_longlong_t)ds->ds_fsid_guid); 1628 (void) printf("\t\tguid = %llu\n", 1629 (u_longlong_t)ds->ds_guid); 1630 (void) printf("\t\tflags = %llx\n", 1631 (u_longlong_t)ds->ds_flags); 1632 (void) printf("\t\tnext_clones_obj = %llu\n", 1633 (u_longlong_t)ds->ds_next_clones_obj); 1634 (void) printf("\t\tprops_obj = %llu\n", 1635 (u_longlong_t)ds->ds_props_obj); 1636 (void) printf("\t\tbp = %s\n", blkbuf); 1637 } 1638 1639 /* ARGSUSED */ 1640 static int 1641 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1642 { 1643 char blkbuf[BP_SPRINTF_LEN]; 1644 1645 if (bp->blk_birth != 0) { 1646 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1647 (void) printf("\t%s\n", blkbuf); 1648 } 1649 return (0); 1650 } 1651 1652 static void 1653 dump_bptree(objset_t *os, uint64_t obj, const char *name) 1654 { 1655 char bytes[32]; 1656 bptree_phys_t *bt; 1657 dmu_buf_t *db; 1658 1659 /* make sure nicenum has enough space */ 1660 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1661 1662 if (dump_opt['d'] < 3) 1663 return; 1664 1665 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1666 bt = db->db_data; 1667 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); 1668 (void) printf("\n %s: %llu datasets, %s\n", 1669 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1670 dmu_buf_rele(db, FTAG); 1671 1672 if (dump_opt['d'] < 5) 1673 return; 1674 1675 (void) printf("\n"); 1676 1677 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1678 } 1679 1680 /* ARGSUSED */ 1681 static int 1682 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1683 { 1684 char blkbuf[BP_SPRINTF_LEN]; 1685 1686 ASSERT(bp->blk_birth != 0); 1687 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1688 (void) printf("\t%s\n", blkbuf); 1689 return (0); 1690 } 1691 1692 static void 1693 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent) 1694 { 1695 char bytes[32]; 1696 char comp[32]; 1697 char uncomp[32]; 1698 1699 /* make sure nicenum has enough space */ 1700 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1701 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1702 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1703 1704 if (dump_opt['d'] < 3) 1705 return; 1706 1707 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); 1708 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1709 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); 1710 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); 1711 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1712 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1713 indent * 8, name, 1714 (u_longlong_t)bpo->bpo_object, 1715 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1716 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1717 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1718 bytes, comp, uncomp); 1719 1720 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1721 uint64_t subobj; 1722 bpobj_t subbpo; 1723 int error; 1724 VERIFY0(dmu_read(bpo->bpo_os, 1725 bpo->bpo_phys->bpo_subobjs, 1726 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1727 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1728 if (error != 0) { 1729 (void) printf("ERROR %u while trying to open " 1730 "subobj id %llu\n", 1731 error, (u_longlong_t)subobj); 1732 continue; 1733 } 1734 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1735 bpobj_close(&subbpo); 1736 } 1737 } else { 1738 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1739 indent * 8, name, 1740 (u_longlong_t)bpo->bpo_object, 1741 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1742 bytes); 1743 } 1744 1745 if (dump_opt['d'] < 5) 1746 return; 1747 1748 1749 if (indent == 0) { 1750 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1751 (void) printf("\n"); 1752 } 1753 } 1754 1755 static void 1756 bpobj_count_refd(bpobj_t *bpo) 1757 { 1758 mos_obj_refd(bpo->bpo_object); 1759 1760 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1761 mos_obj_refd(bpo->bpo_phys->bpo_subobjs); 1762 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1763 uint64_t subobj; 1764 bpobj_t subbpo; 1765 int error; 1766 VERIFY0(dmu_read(bpo->bpo_os, 1767 bpo->bpo_phys->bpo_subobjs, 1768 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1769 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1770 if (error != 0) { 1771 (void) printf("ERROR %u while trying to open " 1772 "subobj id %llu\n", 1773 error, (u_longlong_t)subobj); 1774 continue; 1775 } 1776 bpobj_count_refd(&subbpo); 1777 bpobj_close(&subbpo); 1778 } 1779 } 1780 } 1781 1782 static void 1783 dump_deadlist(dsl_deadlist_t *dl) 1784 { 1785 dsl_deadlist_entry_t *dle; 1786 uint64_t unused; 1787 char bytes[32]; 1788 char comp[32]; 1789 char uncomp[32]; 1790 uint64_t empty_bpobj = 1791 dmu_objset_spa(dl->dl_os)->spa_dsl_pool->dp_empty_bpobj; 1792 1793 /* force the tree to be loaded */ 1794 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1795 1796 if (dl->dl_oldfmt) { 1797 if (dl->dl_bpobj.bpo_object != empty_bpobj) 1798 bpobj_count_refd(&dl->dl_bpobj); 1799 } else { 1800 mos_obj_refd(dl->dl_object); 1801 for (dle = avl_first(&dl->dl_tree); dle; 1802 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1803 if (dle->dle_bpobj.bpo_object != empty_bpobj) 1804 bpobj_count_refd(&dle->dle_bpobj); 1805 } 1806 } 1807 1808 /* make sure nicenum has enough space */ 1809 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1810 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1811 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1812 1813 if (dump_opt['d'] < 3) 1814 return; 1815 1816 if (dl->dl_oldfmt) { 1817 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1818 return; 1819 } 1820 1821 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); 1822 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); 1823 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); 1824 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1825 bytes, comp, uncomp); 1826 1827 if (dump_opt['d'] < 4) 1828 return; 1829 1830 (void) printf("\n"); 1831 1832 for (dle = avl_first(&dl->dl_tree); dle; 1833 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1834 if (dump_opt['d'] >= 5) { 1835 char buf[128]; 1836 (void) snprintf(buf, sizeof (buf), 1837 "mintxg %llu -> obj %llu", 1838 (longlong_t)dle->dle_mintxg, 1839 (longlong_t)dle->dle_bpobj.bpo_object); 1840 1841 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1842 } else { 1843 (void) printf("mintxg %llu -> obj %llu\n", 1844 (longlong_t)dle->dle_mintxg, 1845 (longlong_t)dle->dle_bpobj.bpo_object); 1846 } 1847 } 1848 } 1849 1850 static avl_tree_t idx_tree; 1851 static avl_tree_t domain_tree; 1852 static boolean_t fuid_table_loaded; 1853 static objset_t *sa_os = NULL; 1854 static sa_attr_type_t *sa_attr_table = NULL; 1855 1856 static int 1857 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp) 1858 { 1859 int err; 1860 uint64_t sa_attrs = 0; 1861 uint64_t version = 0; 1862 1863 VERIFY3P(sa_os, ==, NULL); 1864 err = dmu_objset_own(path, type, B_TRUE, tag, osp); 1865 if (err != 0) { 1866 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path, 1867 strerror(err)); 1868 return (err); 1869 } 1870 1871 if (dmu_objset_type(*osp) == DMU_OST_ZFS) { 1872 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1873 8, 1, &version); 1874 if (version >= ZPL_VERSION_SA) { 1875 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1876 8, 1, &sa_attrs); 1877 } 1878 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 1879 &sa_attr_table); 1880 if (err != 0) { 1881 (void) fprintf(stderr, "sa_setup failed: %s\n", 1882 strerror(err)); 1883 dmu_objset_disown(*osp, tag); 1884 *osp = NULL; 1885 } 1886 } 1887 sa_os = *osp; 1888 1889 return (0); 1890 } 1891 1892 static void 1893 close_objset(objset_t *os, void *tag) 1894 { 1895 VERIFY3P(os, ==, sa_os); 1896 if (os->os_sa != NULL) 1897 sa_tear_down(os); 1898 dmu_objset_disown(os, tag); 1899 sa_attr_table = NULL; 1900 sa_os = NULL; 1901 } 1902 1903 static void 1904 fuid_table_destroy() 1905 { 1906 if (fuid_table_loaded) { 1907 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1908 fuid_table_loaded = B_FALSE; 1909 } 1910 } 1911 1912 /* 1913 * print uid or gid information. 1914 * For normal POSIX id just the id is printed in decimal format. 1915 * For CIFS files with FUID the fuid is printed in hex followed by 1916 * the domain-rid string. 1917 */ 1918 static void 1919 print_idstr(uint64_t id, const char *id_type) 1920 { 1921 if (FUID_INDEX(id)) { 1922 char *domain; 1923 1924 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1925 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1926 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1927 } else { 1928 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1929 } 1930 1931 } 1932 1933 static void 1934 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1935 { 1936 uint32_t uid_idx, gid_idx; 1937 1938 uid_idx = FUID_INDEX(uid); 1939 gid_idx = FUID_INDEX(gid); 1940 1941 /* Load domain table, if not already loaded */ 1942 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1943 uint64_t fuid_obj; 1944 1945 /* first find the fuid object. It lives in the master node */ 1946 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1947 8, 1, &fuid_obj) == 0); 1948 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1949 (void) zfs_fuid_table_load(os, fuid_obj, 1950 &idx_tree, &domain_tree); 1951 fuid_table_loaded = B_TRUE; 1952 } 1953 1954 print_idstr(uid, "uid"); 1955 print_idstr(gid, "gid"); 1956 } 1957 1958 /*ARGSUSED*/ 1959 static void 1960 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1961 { 1962 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1963 sa_handle_t *hdl; 1964 uint64_t xattr, rdev, gen; 1965 uint64_t uid, gid, mode, fsize, parent, links; 1966 uint64_t pflags; 1967 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1968 time_t z_crtime, z_atime, z_mtime, z_ctime; 1969 sa_bulk_attr_t bulk[12]; 1970 int idx = 0; 1971 int error; 1972 1973 VERIFY3P(os, ==, sa_os); 1974 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1975 (void) printf("Failed to get handle for SA znode\n"); 1976 return; 1977 } 1978 1979 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1980 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1981 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1982 &links, 8); 1983 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1984 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1985 &mode, 8); 1986 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1987 NULL, &parent, 8); 1988 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1989 &fsize, 8); 1990 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1991 acctm, 16); 1992 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1993 modtm, 16); 1994 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1995 crtm, 16); 1996 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1997 chgtm, 16); 1998 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1999 &pflags, 8); 2000 2001 if (sa_bulk_lookup(hdl, bulk, idx)) { 2002 (void) sa_handle_destroy(hdl); 2003 return; 2004 } 2005 2006 z_crtime = (time_t)crtm[0]; 2007 z_atime = (time_t)acctm[0]; 2008 z_mtime = (time_t)modtm[0]; 2009 z_ctime = (time_t)chgtm[0]; 2010 2011 if (dump_opt['d'] > 4) { 2012 error = zfs_obj_to_path(os, object, path, sizeof (path)); 2013 if (error == ESTALE) { 2014 (void) snprintf(path, sizeof (path), "on delete queue"); 2015 } else if (error != 0) { 2016 leaked_objects++; 2017 (void) snprintf(path, sizeof (path), 2018 "path not found, possibly leaked"); 2019 } 2020 (void) printf("\tpath %s\n", path); 2021 } 2022 dump_uidgid(os, uid, gid); 2023 (void) printf("\tatime %s", ctime(&z_atime)); 2024 (void) printf("\tmtime %s", ctime(&z_mtime)); 2025 (void) printf("\tctime %s", ctime(&z_ctime)); 2026 (void) printf("\tcrtime %s", ctime(&z_crtime)); 2027 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 2028 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 2029 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 2030 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 2031 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 2032 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 2033 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 2034 sizeof (uint64_t)) == 0) 2035 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 2036 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 2037 sizeof (uint64_t)) == 0) 2038 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 2039 sa_handle_destroy(hdl); 2040 } 2041 2042 /*ARGSUSED*/ 2043 static void 2044 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 2045 { 2046 } 2047 2048 /*ARGSUSED*/ 2049 static void 2050 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 2051 { 2052 } 2053 2054 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 2055 dump_none, /* unallocated */ 2056 dump_zap, /* object directory */ 2057 dump_uint64, /* object array */ 2058 dump_none, /* packed nvlist */ 2059 dump_packed_nvlist, /* packed nvlist size */ 2060 dump_none, /* bpobj */ 2061 dump_bpobj, /* bpobj header */ 2062 dump_none, /* SPA space map header */ 2063 dump_none, /* SPA space map */ 2064 dump_none, /* ZIL intent log */ 2065 dump_dnode, /* DMU dnode */ 2066 dump_dmu_objset, /* DMU objset */ 2067 dump_dsl_dir, /* DSL directory */ 2068 dump_zap, /* DSL directory child map */ 2069 dump_zap, /* DSL dataset snap map */ 2070 dump_zap, /* DSL props */ 2071 dump_dsl_dataset, /* DSL dataset */ 2072 dump_znode, /* ZFS znode */ 2073 dump_acl, /* ZFS V0 ACL */ 2074 dump_uint8, /* ZFS plain file */ 2075 dump_zpldir, /* ZFS directory */ 2076 dump_zap, /* ZFS master node */ 2077 dump_zap, /* ZFS delete queue */ 2078 dump_uint8, /* zvol object */ 2079 dump_zap, /* zvol prop */ 2080 dump_uint8, /* other uint8[] */ 2081 dump_uint64, /* other uint64[] */ 2082 dump_zap, /* other ZAP */ 2083 dump_zap, /* persistent error log */ 2084 dump_uint8, /* SPA history */ 2085 dump_history_offsets, /* SPA history offsets */ 2086 dump_zap, /* Pool properties */ 2087 dump_zap, /* DSL permissions */ 2088 dump_acl, /* ZFS ACL */ 2089 dump_uint8, /* ZFS SYSACL */ 2090 dump_none, /* FUID nvlist */ 2091 dump_packed_nvlist, /* FUID nvlist size */ 2092 dump_zap, /* DSL dataset next clones */ 2093 dump_zap, /* DSL scrub queue */ 2094 dump_zap, /* ZFS user/group used */ 2095 dump_zap, /* ZFS user/group quota */ 2096 dump_zap, /* snapshot refcount tags */ 2097 dump_ddt_zap, /* DDT ZAP object */ 2098 dump_zap, /* DDT statistics */ 2099 dump_znode, /* SA object */ 2100 dump_zap, /* SA Master Node */ 2101 dump_sa_attrs, /* SA attribute registration */ 2102 dump_sa_layouts, /* SA attribute layouts */ 2103 dump_zap, /* DSL scrub translations */ 2104 dump_none, /* fake dedup BP */ 2105 dump_zap, /* deadlist */ 2106 dump_none, /* deadlist hdr */ 2107 dump_zap, /* dsl clones */ 2108 dump_bpobj_subobjs, /* bpobj subobjs */ 2109 dump_unknown, /* Unknown type, must be last */ 2110 }; 2111 2112 static void 2113 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 2114 { 2115 dmu_buf_t *db = NULL; 2116 dmu_object_info_t doi; 2117 dnode_t *dn; 2118 void *bonus = NULL; 2119 size_t bsize = 0; 2120 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 2121 char bonus_size[32]; 2122 char aux[50]; 2123 int error; 2124 2125 /* make sure nicenum has enough space */ 2126 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ); 2127 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ); 2128 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 2129 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 2130 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ); 2131 2132 if (*print_header) { 2133 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 2134 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 2135 "%full", "type"); 2136 *print_header = 0; 2137 } 2138 2139 if (object == 0) { 2140 dn = DMU_META_DNODE(os); 2141 } else { 2142 error = dmu_bonus_hold(os, object, FTAG, &db); 2143 if (error) 2144 fatal("dmu_bonus_hold(%llu) failed, errno %u", 2145 object, error); 2146 bonus = db->db_data; 2147 bsize = db->db_size; 2148 dn = DB_DNODE((dmu_buf_impl_t *)db); 2149 } 2150 dmu_object_info_from_dnode(dn, &doi); 2151 2152 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk)); 2153 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk)); 2154 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize)); 2155 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize)); 2156 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size)); 2157 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 2158 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 2159 doi.doi_max_offset); 2160 2161 aux[0] = '\0'; 2162 2163 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 2164 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 2165 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 2166 } 2167 2168 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 2169 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 2170 ZDB_COMPRESS_NAME(doi.doi_compress)); 2171 } 2172 2173 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 2174 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 2175 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 2176 2177 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 2178 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 2179 "", "", "", "", "", bonus_size, "bonus", 2180 ZDB_OT_NAME(doi.doi_bonus_type)); 2181 } 2182 2183 if (verbosity >= 4) { 2184 (void) printf("\tdnode flags: %s%s%s\n", 2185 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 2186 "USED_BYTES " : "", 2187 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 2188 "USERUSED_ACCOUNTED " : "", 2189 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 2190 "SPILL_BLKPTR" : ""); 2191 (void) printf("\tdnode maxblkid: %llu\n", 2192 (longlong_t)dn->dn_phys->dn_maxblkid); 2193 2194 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 2195 bonus, bsize); 2196 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 2197 *print_header = 1; 2198 } 2199 2200 if (verbosity >= 5) 2201 dump_indirect(dn); 2202 2203 if (verbosity >= 5) { 2204 /* 2205 * Report the list of segments that comprise the object. 2206 */ 2207 uint64_t start = 0; 2208 uint64_t end; 2209 uint64_t blkfill = 1; 2210 int minlvl = 1; 2211 2212 if (dn->dn_type == DMU_OT_DNODE) { 2213 minlvl = 0; 2214 blkfill = DNODES_PER_BLOCK; 2215 } 2216 2217 for (;;) { 2218 char segsize[32]; 2219 /* make sure nicenum has enough space */ 2220 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ); 2221 error = dnode_next_offset(dn, 2222 0, &start, minlvl, blkfill, 0); 2223 if (error) 2224 break; 2225 end = start; 2226 error = dnode_next_offset(dn, 2227 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 2228 zdb_nicenum(end - start, segsize, sizeof (segsize)); 2229 (void) printf("\t\tsegment [%016llx, %016llx)" 2230 " size %5s\n", (u_longlong_t)start, 2231 (u_longlong_t)end, segsize); 2232 if (error) 2233 break; 2234 start = end; 2235 } 2236 } 2237 2238 if (db != NULL) 2239 dmu_buf_rele(db, FTAG); 2240 } 2241 2242 static void 2243 count_dir_mos_objects(dsl_dir_t *dd) 2244 { 2245 mos_obj_refd(dd->dd_object); 2246 mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj); 2247 mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj); 2248 mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj); 2249 mos_obj_refd(dsl_dir_phys(dd)->dd_clones); 2250 } 2251 2252 static void 2253 count_ds_mos_objects(dsl_dataset_t *ds) 2254 { 2255 mos_obj_refd(ds->ds_object); 2256 mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj); 2257 mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj); 2258 mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj); 2259 mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj); 2260 2261 if (!dsl_dataset_is_snapshot(ds)) { 2262 count_dir_mos_objects(ds->ds_dir); 2263 } 2264 } 2265 2266 static const char *objset_types[DMU_OST_NUMTYPES] = { 2267 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 2268 2269 static void 2270 dump_dir(objset_t *os) 2271 { 2272 dmu_objset_stats_t dds; 2273 uint64_t object, object_count; 2274 uint64_t refdbytes, usedobjs, scratch; 2275 char numbuf[32]; 2276 char blkbuf[BP_SPRINTF_LEN + 20]; 2277 char osname[ZFS_MAX_DATASET_NAME_LEN]; 2278 const char *type = "UNKNOWN"; 2279 int verbosity = dump_opt['d']; 2280 int print_header = 1; 2281 unsigned i; 2282 int error; 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%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 (dds.dds_inconsistent) ? " (inconsistent)" : ""); 2323 2324 if (zopt_objects != 0) { 2325 for (i = 0; i < zopt_objects; i++) 2326 dump_object(os, zopt_object[i], verbosity, 2327 &print_header); 2328 (void) printf("\n"); 2329 return; 2330 } 2331 2332 if (dump_opt['i'] != 0 || verbosity >= 2) 2333 dump_intent_log(dmu_objset_zil(os)); 2334 2335 if (dmu_objset_ds(os) != NULL) { 2336 dsl_dataset_t *ds = dmu_objset_ds(os); 2337 dump_deadlist(&ds->ds_deadlist); 2338 2339 if (dsl_dataset_remap_deadlist_exists(ds)) { 2340 (void) printf("ds_remap_deadlist:\n"); 2341 dump_deadlist(&ds->ds_remap_deadlist); 2342 } 2343 count_ds_mos_objects(ds); 2344 } 2345 2346 if (verbosity < 2) 2347 return; 2348 2349 if (BP_IS_HOLE(os->os_rootbp)) 2350 return; 2351 2352 dump_object(os, 0, verbosity, &print_header); 2353 object_count = 0; 2354 if (DMU_USERUSED_DNODE(os) != NULL && 2355 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2356 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 2357 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 2358 } 2359 2360 object = 0; 2361 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2362 dump_object(os, object, verbosity, &print_header); 2363 object_count++; 2364 } 2365 2366 ASSERT3U(object_count, ==, usedobjs); 2367 2368 (void) printf("\n"); 2369 2370 if (error != ESRCH) { 2371 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2372 abort(); 2373 } 2374 if (leaked_objects != 0) { 2375 (void) printf("%d potentially leaked objects detected\n", 2376 leaked_objects); 2377 leaked_objects = 0; 2378 } 2379 } 2380 2381 static void 2382 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2383 { 2384 time_t timestamp = ub->ub_timestamp; 2385 2386 (void) printf("%s", header ? header : ""); 2387 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2388 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2389 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2390 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2391 (void) printf("\ttimestamp = %llu UTC = %s", 2392 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2393 if (dump_opt['u'] >= 3) { 2394 char blkbuf[BP_SPRINTF_LEN]; 2395 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2396 (void) printf("\trootbp = %s\n", blkbuf); 2397 } 2398 (void) printf("\tcheckpoint_txg = %llu\n", 2399 (u_longlong_t)ub->ub_checkpoint_txg); 2400 (void) printf("%s", footer ? footer : ""); 2401 } 2402 2403 static void 2404 dump_config(spa_t *spa) 2405 { 2406 dmu_buf_t *db; 2407 size_t nvsize = 0; 2408 int error = 0; 2409 2410 2411 error = dmu_bonus_hold(spa->spa_meta_objset, 2412 spa->spa_config_object, FTAG, &db); 2413 2414 if (error == 0) { 2415 nvsize = *(uint64_t *)db->db_data; 2416 dmu_buf_rele(db, FTAG); 2417 2418 (void) printf("\nMOS Configuration:\n"); 2419 dump_packed_nvlist(spa->spa_meta_objset, 2420 spa->spa_config_object, (void *)&nvsize, 1); 2421 } else { 2422 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2423 (u_longlong_t)spa->spa_config_object, error); 2424 } 2425 } 2426 2427 static void 2428 dump_cachefile(const char *cachefile) 2429 { 2430 int fd; 2431 struct stat64 statbuf; 2432 char *buf; 2433 nvlist_t *config; 2434 2435 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2436 (void) printf("cannot open '%s': %s\n", cachefile, 2437 strerror(errno)); 2438 exit(1); 2439 } 2440 2441 if (fstat64(fd, &statbuf) != 0) { 2442 (void) printf("failed to stat '%s': %s\n", cachefile, 2443 strerror(errno)); 2444 exit(1); 2445 } 2446 2447 if ((buf = malloc(statbuf.st_size)) == NULL) { 2448 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2449 (u_longlong_t)statbuf.st_size); 2450 exit(1); 2451 } 2452 2453 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2454 (void) fprintf(stderr, "failed to read %llu bytes\n", 2455 (u_longlong_t)statbuf.st_size); 2456 exit(1); 2457 } 2458 2459 (void) close(fd); 2460 2461 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2462 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2463 exit(1); 2464 } 2465 2466 free(buf); 2467 2468 dump_nvlist(config, 0); 2469 2470 nvlist_free(config); 2471 } 2472 2473 #define ZDB_MAX_UB_HEADER_SIZE 32 2474 2475 static void 2476 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2477 { 2478 vdev_t vd; 2479 vdev_t *vdp = &vd; 2480 char header[ZDB_MAX_UB_HEADER_SIZE]; 2481 2482 vd.vdev_ashift = ashift; 2483 vdp->vdev_top = vdp; 2484 2485 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2486 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2487 uberblock_t *ub = (void *)((char *)lbl + uoff); 2488 2489 if (uberblock_verify(ub)) 2490 continue; 2491 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2492 "Uberblock[%d]\n", i); 2493 dump_uberblock(ub, header, ""); 2494 } 2495 } 2496 2497 static char curpath[PATH_MAX]; 2498 2499 /* 2500 * Iterate through the path components, recursively passing 2501 * current one's obj and remaining path until we find the obj 2502 * for the last one. 2503 */ 2504 static int 2505 dump_path_impl(objset_t *os, uint64_t obj, char *name) 2506 { 2507 int err; 2508 int header = 1; 2509 uint64_t child_obj; 2510 char *s; 2511 dmu_buf_t *db; 2512 dmu_object_info_t doi; 2513 2514 if ((s = strchr(name, '/')) != NULL) 2515 *s = '\0'; 2516 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 2517 2518 (void) strlcat(curpath, name, sizeof (curpath)); 2519 2520 if (err != 0) { 2521 (void) fprintf(stderr, "failed to lookup %s: %s\n", 2522 curpath, strerror(err)); 2523 return (err); 2524 } 2525 2526 child_obj = ZFS_DIRENT_OBJ(child_obj); 2527 err = sa_buf_hold(os, child_obj, FTAG, &db); 2528 if (err != 0) { 2529 (void) fprintf(stderr, 2530 "failed to get SA dbuf for obj %llu: %s\n", 2531 (u_longlong_t)child_obj, strerror(err)); 2532 return (EINVAL); 2533 } 2534 dmu_object_info_from_db(db, &doi); 2535 sa_buf_rele(db, FTAG); 2536 2537 if (doi.doi_bonus_type != DMU_OT_SA && 2538 doi.doi_bonus_type != DMU_OT_ZNODE) { 2539 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 2540 doi.doi_bonus_type, (u_longlong_t)child_obj); 2541 return (EINVAL); 2542 } 2543 2544 if (dump_opt['v'] > 6) { 2545 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 2546 (u_longlong_t)child_obj, curpath, doi.doi_type, 2547 doi.doi_bonus_type); 2548 } 2549 2550 (void) strlcat(curpath, "/", sizeof (curpath)); 2551 2552 switch (doi.doi_type) { 2553 case DMU_OT_DIRECTORY_CONTENTS: 2554 if (s != NULL && *(s + 1) != '\0') 2555 return (dump_path_impl(os, child_obj, s + 1)); 2556 /*FALLTHROUGH*/ 2557 case DMU_OT_PLAIN_FILE_CONTENTS: 2558 dump_object(os, child_obj, dump_opt['v'], &header); 2559 return (0); 2560 default: 2561 (void) fprintf(stderr, "object %llu has non-file/directory " 2562 "type %d\n", (u_longlong_t)obj, doi.doi_type); 2563 break; 2564 } 2565 2566 return (EINVAL); 2567 } 2568 2569 /* 2570 * Dump the blocks for the object specified by path inside the dataset. 2571 */ 2572 static int 2573 dump_path(char *ds, char *path) 2574 { 2575 int err; 2576 objset_t *os; 2577 uint64_t root_obj; 2578 2579 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os); 2580 if (err != 0) 2581 return (err); 2582 2583 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 2584 if (err != 0) { 2585 (void) fprintf(stderr, "can't lookup root znode: %s\n", 2586 strerror(err)); 2587 dmu_objset_disown(os, FTAG); 2588 return (EINVAL); 2589 } 2590 2591 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 2592 2593 err = dump_path_impl(os, root_obj, path); 2594 2595 close_objset(os, FTAG); 2596 return (err); 2597 } 2598 2599 static int 2600 dump_label(const char *dev) 2601 { 2602 int fd; 2603 vdev_label_t label; 2604 char path[MAXPATHLEN]; 2605 char *buf = label.vl_vdev_phys.vp_nvlist; 2606 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2607 struct stat64 statbuf; 2608 uint64_t psize, ashift; 2609 boolean_t label_found = B_FALSE; 2610 2611 (void) strlcpy(path, dev, sizeof (path)); 2612 if (dev[0] == '/') { 2613 if (strncmp(dev, ZFS_DISK_ROOTD, 2614 strlen(ZFS_DISK_ROOTD)) == 0) { 2615 (void) snprintf(path, sizeof (path), "%s%s", 2616 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); 2617 } 2618 } else if (stat64(path, &statbuf) != 0) { 2619 char *s; 2620 2621 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, 2622 dev); 2623 if (((s = strrchr(dev, 's')) == NULL && 2624 (s = strchr(dev, 'p')) == NULL) || 2625 !isdigit(*(s + 1))) 2626 (void) strlcat(path, "s0", sizeof (path)); 2627 } 2628 2629 if ((fd = open64(path, O_RDONLY)) < 0) { 2630 (void) fprintf(stderr, "cannot open '%s': %s\n", path, 2631 strerror(errno)); 2632 exit(1); 2633 } 2634 2635 if (fstat64(fd, &statbuf) != 0) { 2636 (void) fprintf(stderr, "failed to stat '%s': %s\n", path, 2637 strerror(errno)); 2638 (void) close(fd); 2639 exit(1); 2640 } 2641 2642 if (S_ISBLK(statbuf.st_mode)) { 2643 (void) fprintf(stderr, 2644 "cannot use '%s': character device required\n", path); 2645 (void) close(fd); 2646 exit(1); 2647 } 2648 2649 psize = statbuf.st_size; 2650 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2651 2652 for (int l = 0; l < VDEV_LABELS; l++) { 2653 nvlist_t *config = NULL; 2654 2655 if (!dump_opt['q']) { 2656 (void) printf("------------------------------------\n"); 2657 (void) printf("LABEL %d\n", l); 2658 (void) printf("------------------------------------\n"); 2659 } 2660 2661 if (pread64(fd, &label, sizeof (label), 2662 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2663 if (!dump_opt['q']) 2664 (void) printf("failed to read label %d\n", l); 2665 continue; 2666 } 2667 2668 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2669 if (!dump_opt['q']) 2670 (void) printf("failed to unpack label %d\n", l); 2671 ashift = SPA_MINBLOCKSHIFT; 2672 } else { 2673 nvlist_t *vdev_tree = NULL; 2674 2675 if (!dump_opt['q']) 2676 dump_nvlist(config, 4); 2677 if ((nvlist_lookup_nvlist(config, 2678 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2679 (nvlist_lookup_uint64(vdev_tree, 2680 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2681 ashift = SPA_MINBLOCKSHIFT; 2682 nvlist_free(config); 2683 label_found = B_TRUE; 2684 } 2685 if (dump_opt['u']) 2686 dump_label_uberblocks(&label, ashift); 2687 } 2688 2689 (void) close(fd); 2690 2691 return (label_found ? 0 : 2); 2692 } 2693 2694 static uint64_t dataset_feature_count[SPA_FEATURES]; 2695 static uint64_t remap_deadlist_count = 0; 2696 2697 /*ARGSUSED*/ 2698 static int 2699 dump_one_dir(const char *dsname, void *arg) 2700 { 2701 int error; 2702 objset_t *os; 2703 2704 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os); 2705 if (error != 0) 2706 return (0); 2707 2708 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2709 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2710 continue; 2711 ASSERT(spa_feature_table[f].fi_flags & 2712 ZFEATURE_FLAG_PER_DATASET); 2713 dataset_feature_count[f]++; 2714 } 2715 2716 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) { 2717 remap_deadlist_count++; 2718 } 2719 2720 dump_dir(os); 2721 close_objset(os, FTAG); 2722 fuid_table_destroy(); 2723 return (0); 2724 } 2725 2726 /* 2727 * Block statistics. 2728 */ 2729 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2730 typedef struct zdb_blkstats { 2731 uint64_t zb_asize; 2732 uint64_t zb_lsize; 2733 uint64_t zb_psize; 2734 uint64_t zb_count; 2735 uint64_t zb_gangs; 2736 uint64_t zb_ditto_samevdev; 2737 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2738 } zdb_blkstats_t; 2739 2740 /* 2741 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2742 */ 2743 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2744 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2745 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2746 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2747 2748 static const char *zdb_ot_extname[] = { 2749 "deferred free", 2750 "dedup ditto", 2751 "other", 2752 "Total", 2753 }; 2754 2755 #define ZB_TOTAL DN_MAX_LEVELS 2756 2757 typedef struct zdb_cb { 2758 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2759 uint64_t zcb_removing_size; 2760 uint64_t zcb_checkpoint_size; 2761 uint64_t zcb_dedup_asize; 2762 uint64_t zcb_dedup_blocks; 2763 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2764 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2765 [BPE_PAYLOAD_SIZE]; 2766 uint64_t zcb_start; 2767 hrtime_t zcb_lastprint; 2768 uint64_t zcb_totalasize; 2769 uint64_t zcb_errors[256]; 2770 int zcb_readfails; 2771 int zcb_haderrors; 2772 spa_t *zcb_spa; 2773 uint32_t **zcb_vd_obsolete_counts; 2774 } zdb_cb_t; 2775 2776 static void 2777 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2778 dmu_object_type_t type) 2779 { 2780 uint64_t refcnt = 0; 2781 2782 ASSERT(type < ZDB_OT_TOTAL); 2783 2784 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2785 return; 2786 2787 for (int i = 0; i < 4; i++) { 2788 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2789 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2790 int equal; 2791 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2792 2793 zb->zb_asize += BP_GET_ASIZE(bp); 2794 zb->zb_lsize += BP_GET_LSIZE(bp); 2795 zb->zb_psize += BP_GET_PSIZE(bp); 2796 zb->zb_count++; 2797 2798 /* 2799 * The histogram is only big enough to record blocks up to 2800 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2801 * "other", bucket. 2802 */ 2803 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2804 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2805 zb->zb_psize_histogram[idx]++; 2806 2807 zb->zb_gangs += BP_COUNT_GANG(bp); 2808 2809 switch (BP_GET_NDVAS(bp)) { 2810 case 2: 2811 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2812 DVA_GET_VDEV(&bp->blk_dva[1])) 2813 zb->zb_ditto_samevdev++; 2814 break; 2815 case 3: 2816 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2817 DVA_GET_VDEV(&bp->blk_dva[1])) + 2818 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2819 DVA_GET_VDEV(&bp->blk_dva[2])) + 2820 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2821 DVA_GET_VDEV(&bp->blk_dva[2])); 2822 if (equal != 0) 2823 zb->zb_ditto_samevdev++; 2824 break; 2825 } 2826 2827 } 2828 2829 if (BP_IS_EMBEDDED(bp)) { 2830 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2831 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2832 [BPE_GET_PSIZE(bp)]++; 2833 return; 2834 } 2835 2836 if (dump_opt['L']) 2837 return; 2838 2839 if (BP_GET_DEDUP(bp)) { 2840 ddt_t *ddt; 2841 ddt_entry_t *dde; 2842 2843 ddt = ddt_select(zcb->zcb_spa, bp); 2844 ddt_enter(ddt); 2845 dde = ddt_lookup(ddt, bp, B_FALSE); 2846 2847 if (dde == NULL) { 2848 refcnt = 0; 2849 } else { 2850 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2851 ddt_phys_decref(ddp); 2852 refcnt = ddp->ddp_refcnt; 2853 if (ddt_phys_total_refcnt(dde) == 0) 2854 ddt_remove(ddt, dde); 2855 } 2856 ddt_exit(ddt); 2857 } 2858 2859 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2860 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa), 2861 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2862 } 2863 2864 static void 2865 zdb_blkptr_done(zio_t *zio) 2866 { 2867 spa_t *spa = zio->io_spa; 2868 blkptr_t *bp = zio->io_bp; 2869 int ioerr = zio->io_error; 2870 zdb_cb_t *zcb = zio->io_private; 2871 zbookmark_phys_t *zb = &zio->io_bookmark; 2872 2873 abd_free(zio->io_abd); 2874 2875 mutex_enter(&spa->spa_scrub_lock); 2876 spa->spa_scrub_inflight--; 2877 cv_broadcast(&spa->spa_scrub_io_cv); 2878 2879 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2880 char blkbuf[BP_SPRINTF_LEN]; 2881 2882 zcb->zcb_haderrors = 1; 2883 zcb->zcb_errors[ioerr]++; 2884 2885 if (dump_opt['b'] >= 2) 2886 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2887 else 2888 blkbuf[0] = '\0'; 2889 2890 (void) printf("zdb_blkptr_cb: " 2891 "Got error %d reading " 2892 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2893 ioerr, 2894 (u_longlong_t)zb->zb_objset, 2895 (u_longlong_t)zb->zb_object, 2896 (u_longlong_t)zb->zb_level, 2897 (u_longlong_t)zb->zb_blkid, 2898 blkbuf); 2899 } 2900 mutex_exit(&spa->spa_scrub_lock); 2901 } 2902 2903 static int 2904 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2905 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2906 { 2907 zdb_cb_t *zcb = arg; 2908 dmu_object_type_t type; 2909 boolean_t is_metadata; 2910 2911 if (bp == NULL) 2912 return (0); 2913 2914 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2915 char blkbuf[BP_SPRINTF_LEN]; 2916 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2917 (void) printf("objset %llu object %llu " 2918 "level %lld offset 0x%llx %s\n", 2919 (u_longlong_t)zb->zb_objset, 2920 (u_longlong_t)zb->zb_object, 2921 (longlong_t)zb->zb_level, 2922 (u_longlong_t)blkid2offset(dnp, bp, zb), 2923 blkbuf); 2924 } 2925 2926 if (BP_IS_HOLE(bp)) 2927 return (0); 2928 2929 type = BP_GET_TYPE(bp); 2930 2931 zdb_count_block(zcb, zilog, bp, 2932 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2933 2934 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2935 2936 if (!BP_IS_EMBEDDED(bp) && 2937 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2938 size_t size = BP_GET_PSIZE(bp); 2939 abd_t *abd = abd_alloc(size, B_FALSE); 2940 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2941 2942 /* If it's an intent log block, failure is expected. */ 2943 if (zb->zb_level == ZB_ZIL_LEVEL) 2944 flags |= ZIO_FLAG_SPECULATIVE; 2945 2946 mutex_enter(&spa->spa_scrub_lock); 2947 while (spa->spa_scrub_inflight > max_inflight) 2948 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2949 spa->spa_scrub_inflight++; 2950 mutex_exit(&spa->spa_scrub_lock); 2951 2952 zio_nowait(zio_read(NULL, spa, bp, abd, size, 2953 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2954 } 2955 2956 zcb->zcb_readfails = 0; 2957 2958 /* only call gethrtime() every 100 blocks */ 2959 static int iters; 2960 if (++iters > 100) 2961 iters = 0; 2962 else 2963 return (0); 2964 2965 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2966 uint64_t now = gethrtime(); 2967 char buf[10]; 2968 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2969 int kb_per_sec = 2970 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2971 int sec_remaining = 2972 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2973 2974 /* make sure nicenum has enough space */ 2975 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ); 2976 2977 zfs_nicenum(bytes, buf, sizeof (buf)); 2978 (void) fprintf(stderr, 2979 "\r%5s completed (%4dMB/s) " 2980 "estimated time remaining: %uhr %02umin %02usec ", 2981 buf, kb_per_sec / 1024, 2982 sec_remaining / 60 / 60, 2983 sec_remaining / 60 % 60, 2984 sec_remaining % 60); 2985 2986 zcb->zcb_lastprint = now; 2987 } 2988 2989 return (0); 2990 } 2991 2992 static void 2993 zdb_leak(void *arg, uint64_t start, uint64_t size) 2994 { 2995 vdev_t *vd = arg; 2996 2997 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2998 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2999 } 3000 3001 static metaslab_ops_t zdb_metaslab_ops = { 3002 NULL /* alloc */ 3003 }; 3004 3005 static void 3006 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 3007 { 3008 ddt_bookmark_t ddb; 3009 ddt_entry_t dde; 3010 int error; 3011 3012 bzero(&ddb, sizeof (ddb)); 3013 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 3014 blkptr_t blk; 3015 ddt_phys_t *ddp = dde.dde_phys; 3016 3017 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 3018 return; 3019 3020 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 3021 3022 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 3023 if (ddp->ddp_phys_birth == 0) 3024 continue; 3025 ddt_bp_create(ddb.ddb_checksum, 3026 &dde.dde_key, ddp, &blk); 3027 if (p == DDT_PHYS_DITTO) { 3028 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 3029 } else { 3030 zcb->zcb_dedup_asize += 3031 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 3032 zcb->zcb_dedup_blocks++; 3033 } 3034 } 3035 if (!dump_opt['L']) { 3036 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 3037 ddt_enter(ddt); 3038 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 3039 ddt_exit(ddt); 3040 } 3041 } 3042 3043 ASSERT(error == ENOENT); 3044 } 3045 3046 /* ARGSUSED */ 3047 static void 3048 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset, 3049 uint64_t size, void *arg) 3050 { 3051 /* 3052 * This callback was called through a remap from 3053 * a device being removed. Therefore, the vdev that 3054 * this callback is applied to is a concrete 3055 * vdev. 3056 */ 3057 ASSERT(vdev_is_concrete(vd)); 3058 3059 VERIFY0(metaslab_claim_impl(vd, offset, size, 3060 spa_min_claim_txg(vd->vdev_spa))); 3061 } 3062 3063 static void 3064 claim_segment_cb(void *arg, uint64_t offset, uint64_t size) 3065 { 3066 vdev_t *vd = arg; 3067 3068 vdev_indirect_ops.vdev_op_remap(vd, offset, size, 3069 claim_segment_impl_cb, NULL); 3070 } 3071 3072 /* 3073 * After accounting for all allocated blocks that are directly referenced, 3074 * we might have missed a reference to a block from a partially complete 3075 * (and thus unused) indirect mapping object. We perform a secondary pass 3076 * through the metaslabs we have already mapped and claim the destination 3077 * blocks. 3078 */ 3079 static void 3080 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb) 3081 { 3082 if (spa->spa_vdev_removal == NULL) 3083 return; 3084 3085 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3086 3087 spa_vdev_removal_t *svr = spa->spa_vdev_removal; 3088 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id); 3089 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3090 3091 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) { 3092 metaslab_t *msp = vd->vdev_ms[msi]; 3093 3094 if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim)) 3095 break; 3096 3097 ASSERT0(range_tree_space(svr->svr_allocd_segs)); 3098 3099 if (msp->ms_sm != NULL) { 3100 VERIFY0(space_map_load(msp->ms_sm, 3101 svr->svr_allocd_segs, SM_ALLOC)); 3102 3103 /* 3104 * Clear everything past what has been synced unless 3105 * it's past the spacemap, because we have not allocated 3106 * mappings for it yet. 3107 */ 3108 uint64_t vim_max_offset = 3109 vdev_indirect_mapping_max_offset(vim); 3110 uint64_t sm_end = msp->ms_sm->sm_start + 3111 msp->ms_sm->sm_size; 3112 if (sm_end > vim_max_offset) 3113 range_tree_clear(svr->svr_allocd_segs, 3114 vim_max_offset, sm_end - vim_max_offset); 3115 } 3116 3117 zcb->zcb_removing_size += 3118 range_tree_space(svr->svr_allocd_segs); 3119 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd); 3120 } 3121 3122 spa_config_exit(spa, SCL_CONFIG, FTAG); 3123 } 3124 3125 /* ARGSUSED */ 3126 static int 3127 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 3128 { 3129 zdb_cb_t *zcb = arg; 3130 spa_t *spa = zcb->zcb_spa; 3131 vdev_t *vd; 3132 const dva_t *dva = &bp->blk_dva[0]; 3133 3134 ASSERT(!dump_opt['L']); 3135 ASSERT3U(BP_GET_NDVAS(bp), ==, 1); 3136 3137 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); 3138 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva)); 3139 ASSERT3P(vd, !=, NULL); 3140 spa_config_exit(spa, SCL_VDEV, FTAG); 3141 3142 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0); 3143 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL); 3144 3145 vdev_indirect_mapping_increment_obsolete_count( 3146 vd->vdev_indirect_mapping, 3147 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva), 3148 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 3149 3150 return (0); 3151 } 3152 3153 static uint32_t * 3154 zdb_load_obsolete_counts(vdev_t *vd) 3155 { 3156 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3157 spa_t *spa = vd->vdev_spa; 3158 spa_condensing_indirect_phys_t *scip = 3159 &spa->spa_condensing_indirect_phys; 3160 uint32_t *counts; 3161 3162 EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL); 3163 counts = vdev_indirect_mapping_load_obsolete_counts(vim); 3164 if (vd->vdev_obsolete_sm != NULL) { 3165 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 3166 vd->vdev_obsolete_sm); 3167 } 3168 if (scip->scip_vdev == vd->vdev_id && 3169 scip->scip_prev_obsolete_sm_object != 0) { 3170 space_map_t *prev_obsolete_sm = NULL; 3171 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset, 3172 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0)); 3173 space_map_update(prev_obsolete_sm); 3174 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 3175 prev_obsolete_sm); 3176 space_map_close(prev_obsolete_sm); 3177 } 3178 return (counts); 3179 } 3180 3181 typedef struct checkpoint_sm_exclude_entry_arg { 3182 vdev_t *cseea_vd; 3183 uint64_t cseea_checkpoint_size; 3184 } checkpoint_sm_exclude_entry_arg_t; 3185 3186 static int 3187 checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg) 3188 { 3189 checkpoint_sm_exclude_entry_arg_t *cseea = arg; 3190 vdev_t *vd = cseea->cseea_vd; 3191 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 3192 uint64_t end = sme->sme_offset + sme->sme_run; 3193 3194 ASSERT(sme->sme_type == SM_FREE); 3195 3196 /* 3197 * Since the vdev_checkpoint_sm exists in the vdev level 3198 * and the ms_sm space maps exist in the metaslab level, 3199 * an entry in the checkpoint space map could theoretically 3200 * cross the boundaries of the metaslab that it belongs. 3201 * 3202 * In reality, because of the way that we populate and 3203 * manipulate the checkpoint's space maps currently, 3204 * there shouldn't be any entries that cross metaslabs. 3205 * Hence the assertion below. 3206 * 3207 * That said, there is no fundamental requirement that 3208 * the checkpoint's space map entries should not cross 3209 * metaslab boundaries. So if needed we could add code 3210 * that handles metaslab-crossing segments in the future. 3211 */ 3212 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 3213 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 3214 3215 /* 3216 * By removing the entry from the allocated segments we 3217 * also verify that the entry is there to begin with. 3218 */ 3219 mutex_enter(&ms->ms_lock); 3220 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run); 3221 mutex_exit(&ms->ms_lock); 3222 3223 cseea->cseea_checkpoint_size += sme->sme_run; 3224 return (0); 3225 } 3226 3227 static void 3228 zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb) 3229 { 3230 spa_t *spa = vd->vdev_spa; 3231 space_map_t *checkpoint_sm = NULL; 3232 uint64_t checkpoint_sm_obj; 3233 3234 /* 3235 * If there is no vdev_top_zap, we are in a pool whose 3236 * version predates the pool checkpoint feature. 3237 */ 3238 if (vd->vdev_top_zap == 0) 3239 return; 3240 3241 /* 3242 * If there is no reference of the vdev_checkpoint_sm in 3243 * the vdev_top_zap, then one of the following scenarios 3244 * is true: 3245 * 3246 * 1] There is no checkpoint 3247 * 2] There is a checkpoint, but no checkpointed blocks 3248 * have been freed yet 3249 * 3] The current vdev is indirect 3250 * 3251 * In these cases we return immediately. 3252 */ 3253 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 3254 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 3255 return; 3256 3257 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 3258 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1, 3259 &checkpoint_sm_obj)); 3260 3261 checkpoint_sm_exclude_entry_arg_t cseea; 3262 cseea.cseea_vd = vd; 3263 cseea.cseea_checkpoint_size = 0; 3264 3265 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 3266 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 3267 space_map_update(checkpoint_sm); 3268 3269 VERIFY0(space_map_iterate(checkpoint_sm, 3270 checkpoint_sm_exclude_entry_cb, &cseea)); 3271 space_map_close(checkpoint_sm); 3272 3273 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size; 3274 } 3275 3276 static void 3277 zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb) 3278 { 3279 vdev_t *rvd = spa->spa_root_vdev; 3280 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 3281 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id); 3282 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb); 3283 } 3284 } 3285 3286 static void 3287 load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype) 3288 { 3289 vdev_t *rvd = spa->spa_root_vdev; 3290 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 3291 vdev_t *vd = rvd->vdev_child[i]; 3292 3293 ASSERT3U(i, ==, vd->vdev_id); 3294 3295 if (vd->vdev_ops == &vdev_indirect_ops) 3296 continue; 3297 3298 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 3299 metaslab_t *msp = vd->vdev_ms[m]; 3300 3301 (void) fprintf(stderr, 3302 "\rloading concrete vdev %llu, " 3303 "metaslab %llu of %llu ...", 3304 (longlong_t)vd->vdev_id, 3305 (longlong_t)msp->ms_id, 3306 (longlong_t)vd->vdev_ms_count); 3307 3308 mutex_enter(&msp->ms_lock); 3309 metaslab_unload(msp); 3310 3311 /* 3312 * We don't want to spend the CPU manipulating the 3313 * size-ordered tree, so clear the range_tree ops. 3314 */ 3315 msp->ms_allocatable->rt_ops = NULL; 3316 3317 if (msp->ms_sm != NULL) { 3318 VERIFY0(space_map_load(msp->ms_sm, 3319 msp->ms_allocatable, maptype)); 3320 } 3321 if (!msp->ms_loaded) 3322 msp->ms_loaded = B_TRUE; 3323 mutex_exit(&msp->ms_lock); 3324 } 3325 } 3326 } 3327 3328 /* 3329 * vm_idxp is an in-out parameter which (for indirect vdevs) is the 3330 * index in vim_entries that has the first entry in this metaslab. 3331 * On return, it will be set to the first entry after this metaslab. 3332 */ 3333 static void 3334 load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp, 3335 uint64_t *vim_idxp) 3336 { 3337 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3338 3339 mutex_enter(&msp->ms_lock); 3340 metaslab_unload(msp); 3341 3342 /* 3343 * We don't want to spend the CPU manipulating the 3344 * size-ordered tree, so clear the range_tree ops. 3345 */ 3346 msp->ms_allocatable->rt_ops = NULL; 3347 3348 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim); 3349 (*vim_idxp)++) { 3350 vdev_indirect_mapping_entry_phys_t *vimep = 3351 &vim->vim_entries[*vim_idxp]; 3352 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 3353 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst); 3354 ASSERT3U(ent_offset, >=, msp->ms_start); 3355 if (ent_offset >= msp->ms_start + msp->ms_size) 3356 break; 3357 3358 /* 3359 * Mappings do not cross metaslab boundaries, 3360 * because we create them by walking the metaslabs. 3361 */ 3362 ASSERT3U(ent_offset + ent_len, <=, 3363 msp->ms_start + msp->ms_size); 3364 range_tree_add(msp->ms_allocatable, ent_offset, ent_len); 3365 } 3366 3367 if (!msp->ms_loaded) 3368 msp->ms_loaded = B_TRUE; 3369 mutex_exit(&msp->ms_lock); 3370 } 3371 3372 static void 3373 zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb) 3374 { 3375 vdev_t *rvd = spa->spa_root_vdev; 3376 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 3377 vdev_t *vd = rvd->vdev_child[c]; 3378 3379 ASSERT3U(c, ==, vd->vdev_id); 3380 3381 if (vd->vdev_ops != &vdev_indirect_ops) 3382 continue; 3383 3384 /* 3385 * Note: we don't check for mapping leaks on 3386 * removing vdevs because their ms_allocatable's 3387 * are used to look for leaks in allocated space. 3388 */ 3389 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd); 3390 3391 /* 3392 * Normally, indirect vdevs don't have any 3393 * metaslabs. We want to set them up for 3394 * zio_claim(). 3395 */ 3396 VERIFY0(vdev_metaslab_init(vd, 0)); 3397 3398 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3399 uint64_t vim_idx = 0; 3400 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 3401 3402 (void) fprintf(stderr, 3403 "\rloading indirect vdev %llu, " 3404 "metaslab %llu of %llu ...", 3405 (longlong_t)vd->vdev_id, 3406 (longlong_t)vd->vdev_ms[m]->ms_id, 3407 (longlong_t)vd->vdev_ms_count); 3408 3409 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m], 3410 &vim_idx); 3411 } 3412 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim)); 3413 } 3414 } 3415 3416 static void 3417 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 3418 { 3419 zcb->zcb_spa = spa; 3420 3421 if (!dump_opt['L']) { 3422 dsl_pool_t *dp = spa->spa_dsl_pool; 3423 vdev_t *rvd = spa->spa_root_vdev; 3424 3425 /* 3426 * We are going to be changing the meaning of the metaslab's 3427 * ms_allocatable. Ensure that the allocator doesn't try to 3428 * use the tree. 3429 */ 3430 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 3431 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 3432 3433 zcb->zcb_vd_obsolete_counts = 3434 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *), 3435 UMEM_NOFAIL); 3436 3437 /* 3438 * For leak detection, we overload the ms_allocatable trees 3439 * to contain allocated segments instead of free segments. 3440 * As a result, we can't use the normal metaslab_load/unload 3441 * interfaces. 3442 */ 3443 zdb_leak_init_prepare_indirect_vdevs(spa, zcb); 3444 load_concrete_ms_allocatable_trees(spa, SM_ALLOC); 3445 3446 /* 3447 * On load_concrete_ms_allocatable_trees() we loaded all the 3448 * allocated entries from the ms_sm to the ms_allocatable for 3449 * each metaslab. If the pool has a checkpoint or is in the 3450 * middle of discarding a checkpoint, some of these blocks 3451 * may have been freed but their ms_sm may not have been 3452 * updated because they are referenced by the checkpoint. In 3453 * order to avoid false-positives during leak-detection, we 3454 * go through the vdev's checkpoint space map and exclude all 3455 * its entries from their relevant ms_allocatable. 3456 * 3457 * We also aggregate the space held by the checkpoint and add 3458 * it to zcb_checkpoint_size. 3459 * 3460 * Note that at this point we are also verifying that all the 3461 * entries on the checkpoint_sm are marked as allocated in 3462 * the ms_sm of their relevant metaslab. 3463 * [see comment in checkpoint_sm_exclude_entry_cb()] 3464 */ 3465 zdb_leak_init_exclude_checkpoint(spa, zcb); 3466 3467 /* for cleaner progress output */ 3468 (void) fprintf(stderr, "\n"); 3469 3470 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 3471 ASSERT(spa_feature_is_enabled(spa, 3472 SPA_FEATURE_DEVICE_REMOVAL)); 3473 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj, 3474 increment_indirect_mapping_cb, zcb, NULL); 3475 } 3476 } else { 3477 /* 3478 * If leak tracing is disabled, we still need to consider 3479 * any checkpointed space in our space verification. 3480 */ 3481 zcb->zcb_checkpoint_size += spa_get_checkpoint_space(spa); 3482 } 3483 3484 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3485 zdb_ddt_leak_init(spa, zcb); 3486 spa_config_exit(spa, SCL_CONFIG, FTAG); 3487 } 3488 3489 static boolean_t 3490 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb) 3491 { 3492 boolean_t leaks = B_FALSE; 3493 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3494 uint64_t total_leaked = 0; 3495 3496 ASSERT(vim != NULL); 3497 3498 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 3499 vdev_indirect_mapping_entry_phys_t *vimep = 3500 &vim->vim_entries[i]; 3501 uint64_t obsolete_bytes = 0; 3502 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 3503 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 3504 3505 /* 3506 * This is not very efficient but it's easy to 3507 * verify correctness. 3508 */ 3509 for (uint64_t inner_offset = 0; 3510 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst); 3511 inner_offset += 1 << vd->vdev_ashift) { 3512 if (range_tree_contains(msp->ms_allocatable, 3513 offset + inner_offset, 1 << vd->vdev_ashift)) { 3514 obsolete_bytes += 1 << vd->vdev_ashift; 3515 } 3516 } 3517 3518 int64_t bytes_leaked = obsolete_bytes - 3519 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]; 3520 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=, 3521 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]); 3522 if (bytes_leaked != 0 && 3523 (vdev_obsolete_counts_are_precise(vd) || 3524 dump_opt['d'] >= 5)) { 3525 (void) printf("obsolete indirect mapping count " 3526 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n", 3527 (u_longlong_t)vd->vdev_id, 3528 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 3529 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 3530 (u_longlong_t)bytes_leaked); 3531 } 3532 total_leaked += ABS(bytes_leaked); 3533 } 3534 3535 if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) { 3536 int pct_leaked = total_leaked * 100 / 3537 vdev_indirect_mapping_bytes_mapped(vim); 3538 (void) printf("cannot verify obsolete indirect mapping " 3539 "counts of vdev %llu because precise feature was not " 3540 "enabled when it was removed: %d%% (%llx bytes) of mapping" 3541 "unreferenced\n", 3542 (u_longlong_t)vd->vdev_id, pct_leaked, 3543 (u_longlong_t)total_leaked); 3544 } else if (total_leaked > 0) { 3545 (void) printf("obsolete indirect mapping count mismatch " 3546 "for vdev %llu -- %llx total bytes mismatched\n", 3547 (u_longlong_t)vd->vdev_id, 3548 (u_longlong_t)total_leaked); 3549 leaks |= B_TRUE; 3550 } 3551 3552 vdev_indirect_mapping_free_obsolete_counts(vim, 3553 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 3554 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL; 3555 3556 return (leaks); 3557 } 3558 3559 static boolean_t 3560 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb) 3561 { 3562 boolean_t leaks = B_FALSE; 3563 if (!dump_opt['L']) { 3564 vdev_t *rvd = spa->spa_root_vdev; 3565 for (unsigned c = 0; c < rvd->vdev_children; c++) { 3566 vdev_t *vd = rvd->vdev_child[c]; 3567 metaslab_group_t *mg = vd->vdev_mg; 3568 3569 if (zcb->zcb_vd_obsolete_counts[c] != NULL) { 3570 leaks |= zdb_check_for_obsolete_leaks(vd, zcb); 3571 } 3572 3573 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 3574 metaslab_t *msp = vd->vdev_ms[m]; 3575 ASSERT3P(mg, ==, msp->ms_group); 3576 3577 /* 3578 * ms_allocatable has been overloaded 3579 * to contain allocated segments. Now that 3580 * we finished traversing all blocks, any 3581 * block that remains in the ms_allocatable 3582 * represents an allocated block that we 3583 * did not claim during the traversal. 3584 * Claimed blocks would have been removed 3585 * from the ms_allocatable. For indirect 3586 * vdevs, space remaining in the tree 3587 * represents parts of the mapping that are 3588 * not referenced, which is not a bug. 3589 */ 3590 if (vd->vdev_ops == &vdev_indirect_ops) { 3591 range_tree_vacate(msp->ms_allocatable, 3592 NULL, NULL); 3593 } else { 3594 range_tree_vacate(msp->ms_allocatable, 3595 zdb_leak, vd); 3596 } 3597 3598 if (msp->ms_loaded) { 3599 msp->ms_loaded = B_FALSE; 3600 } 3601 } 3602 } 3603 3604 umem_free(zcb->zcb_vd_obsolete_counts, 3605 rvd->vdev_children * sizeof (uint32_t *)); 3606 zcb->zcb_vd_obsolete_counts = NULL; 3607 } 3608 return (leaks); 3609 } 3610 3611 /* ARGSUSED */ 3612 static int 3613 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 3614 { 3615 zdb_cb_t *zcb = arg; 3616 3617 if (dump_opt['b'] >= 5) { 3618 char blkbuf[BP_SPRINTF_LEN]; 3619 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3620 (void) printf("[%s] %s\n", 3621 "deferred free", blkbuf); 3622 } 3623 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 3624 return (0); 3625 } 3626 3627 static int 3628 dump_block_stats(spa_t *spa) 3629 { 3630 zdb_cb_t zcb; 3631 zdb_blkstats_t *zb, *tzb; 3632 uint64_t norm_alloc, norm_space, total_alloc, total_found; 3633 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 3634 boolean_t leaks = B_FALSE; 3635 3636 bzero(&zcb, sizeof (zcb)); 3637 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 3638 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 3639 (dump_opt['c'] == 1) ? "metadata " : "", 3640 dump_opt['c'] ? "checksums " : "", 3641 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 3642 !dump_opt['L'] ? "nothing leaked " : ""); 3643 3644 /* 3645 * Load all space maps as SM_ALLOC maps, then traverse the pool 3646 * claiming each block we discover. If the pool is perfectly 3647 * consistent, the space maps will be empty when we're done. 3648 * Anything left over is a leak; any block we can't claim (because 3649 * it's not part of any space map) is a double allocation, 3650 * reference to a freed block, or an unclaimed log block. 3651 */ 3652 zdb_leak_init(spa, &zcb); 3653 3654 /* 3655 * If there's a deferred-free bplist, process that first. 3656 */ 3657 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 3658 count_block_cb, &zcb, NULL); 3659 3660 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3661 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 3662 count_block_cb, &zcb, NULL); 3663 } 3664 3665 zdb_claim_removing(spa, &zcb); 3666 3667 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 3668 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 3669 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 3670 &zcb, NULL)); 3671 } 3672 3673 if (dump_opt['c'] > 1) 3674 flags |= TRAVERSE_PREFETCH_DATA; 3675 3676 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 3677 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 3678 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 3679 3680 /* 3681 * If we've traversed the data blocks then we need to wait for those 3682 * I/Os to complete. We leverage "The Godfather" zio to wait on 3683 * all async I/Os to complete. 3684 */ 3685 if (dump_opt['c']) { 3686 for (int i = 0; i < max_ncpus; i++) { 3687 (void) zio_wait(spa->spa_async_zio_root[i]); 3688 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 3689 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 3690 ZIO_FLAG_GODFATHER); 3691 } 3692 } 3693 3694 if (zcb.zcb_haderrors) { 3695 (void) printf("\nError counts:\n\n"); 3696 (void) printf("\t%5s %s\n", "errno", "count"); 3697 for (int e = 0; e < 256; e++) { 3698 if (zcb.zcb_errors[e] != 0) { 3699 (void) printf("\t%5d %llu\n", 3700 e, (u_longlong_t)zcb.zcb_errors[e]); 3701 } 3702 } 3703 } 3704 3705 /* 3706 * Report any leaked segments. 3707 */ 3708 leaks |= zdb_leak_fini(spa, &zcb); 3709 3710 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 3711 3712 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 3713 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 3714 3715 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 3716 total_found = tzb->zb_asize - zcb.zcb_dedup_asize + 3717 zcb.zcb_removing_size + zcb.zcb_checkpoint_size; 3718 3719 if (total_found == total_alloc) { 3720 if (!dump_opt['L']) 3721 (void) printf("\n\tNo leaks (block sum matches space" 3722 " maps exactly)\n"); 3723 } else { 3724 (void) printf("block traversal size %llu != alloc %llu " 3725 "(%s %lld)\n", 3726 (u_longlong_t)total_found, 3727 (u_longlong_t)total_alloc, 3728 (dump_opt['L']) ? "unreachable" : "leaked", 3729 (longlong_t)(total_alloc - total_found)); 3730 leaks = B_TRUE; 3731 } 3732 3733 if (tzb->zb_count == 0) 3734 return (2); 3735 3736 (void) printf("\n"); 3737 (void) printf("\tbp count: %10llu\n", 3738 (u_longlong_t)tzb->zb_count); 3739 (void) printf("\tganged count: %10llu\n", 3740 (longlong_t)tzb->zb_gangs); 3741 (void) printf("\tbp logical: %10llu avg: %6llu\n", 3742 (u_longlong_t)tzb->zb_lsize, 3743 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 3744 (void) printf("\tbp physical: %10llu avg:" 3745 " %6llu compression: %6.2f\n", 3746 (u_longlong_t)tzb->zb_psize, 3747 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 3748 (double)tzb->zb_lsize / tzb->zb_psize); 3749 (void) printf("\tbp allocated: %10llu avg:" 3750 " %6llu compression: %6.2f\n", 3751 (u_longlong_t)tzb->zb_asize, 3752 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 3753 (double)tzb->zb_lsize / tzb->zb_asize); 3754 (void) printf("\tbp deduped: %10llu ref>1:" 3755 " %6llu deduplication: %6.2f\n", 3756 (u_longlong_t)zcb.zcb_dedup_asize, 3757 (u_longlong_t)zcb.zcb_dedup_blocks, 3758 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 3759 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 3760 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 3761 3762 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 3763 if (zcb.zcb_embedded_blocks[i] == 0) 3764 continue; 3765 (void) printf("\n"); 3766 (void) printf("\tadditional, non-pointer bps of type %u: " 3767 "%10llu\n", 3768 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 3769 3770 if (dump_opt['b'] >= 3) { 3771 (void) printf("\t number of (compressed) bytes: " 3772 "number of bps\n"); 3773 dump_histogram(zcb.zcb_embedded_histogram[i], 3774 sizeof (zcb.zcb_embedded_histogram[i]) / 3775 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 3776 } 3777 } 3778 3779 if (tzb->zb_ditto_samevdev != 0) { 3780 (void) printf("\tDittoed blocks on same vdev: %llu\n", 3781 (longlong_t)tzb->zb_ditto_samevdev); 3782 } 3783 3784 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) { 3785 vdev_t *vd = spa->spa_root_vdev->vdev_child[v]; 3786 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3787 3788 if (vim == NULL) { 3789 continue; 3790 } 3791 3792 char mem[32]; 3793 zdb_nicenum(vdev_indirect_mapping_num_entries(vim), 3794 mem, vdev_indirect_mapping_size(vim)); 3795 3796 (void) printf("\tindirect vdev id %llu has %llu segments " 3797 "(%s in memory)\n", 3798 (longlong_t)vd->vdev_id, 3799 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem); 3800 } 3801 3802 if (dump_opt['b'] >= 2) { 3803 int l, t, level; 3804 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 3805 "\t avg\t comp\t%%Total\tType\n"); 3806 3807 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 3808 char csize[32], lsize[32], psize[32], asize[32]; 3809 char avg[32], gang[32]; 3810 const char *typename; 3811 3812 /* make sure nicenum has enough space */ 3813 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ); 3814 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 3815 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ); 3816 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 3817 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ); 3818 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ); 3819 3820 if (t < DMU_OT_NUMTYPES) 3821 typename = dmu_ot[t].ot_name; 3822 else 3823 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 3824 3825 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 3826 (void) printf("%6s\t%5s\t%5s\t%5s" 3827 "\t%5s\t%5s\t%6s\t%s\n", 3828 "-", 3829 "-", 3830 "-", 3831 "-", 3832 "-", 3833 "-", 3834 "-", 3835 typename); 3836 continue; 3837 } 3838 3839 for (l = ZB_TOTAL - 1; l >= -1; l--) { 3840 level = (l == -1 ? ZB_TOTAL : l); 3841 zb = &zcb.zcb_type[level][t]; 3842 3843 if (zb->zb_asize == 0) 3844 continue; 3845 3846 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 3847 continue; 3848 3849 if (level == 0 && zb->zb_asize == 3850 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 3851 continue; 3852 3853 zdb_nicenum(zb->zb_count, csize, 3854 sizeof (csize)); 3855 zdb_nicenum(zb->zb_lsize, lsize, 3856 sizeof (lsize)); 3857 zdb_nicenum(zb->zb_psize, psize, 3858 sizeof (psize)); 3859 zdb_nicenum(zb->zb_asize, asize, 3860 sizeof (asize)); 3861 zdb_nicenum(zb->zb_asize / zb->zb_count, avg, 3862 sizeof (avg)); 3863 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); 3864 3865 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 3866 "\t%5.2f\t%6.2f\t", 3867 csize, lsize, psize, asize, avg, 3868 (double)zb->zb_lsize / zb->zb_psize, 3869 100.0 * zb->zb_asize / tzb->zb_asize); 3870 3871 if (level == ZB_TOTAL) 3872 (void) printf("%s\n", typename); 3873 else 3874 (void) printf(" L%d %s\n", 3875 level, typename); 3876 3877 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 3878 (void) printf("\t number of ganged " 3879 "blocks: %s\n", gang); 3880 } 3881 3882 if (dump_opt['b'] >= 4) { 3883 (void) printf("psize " 3884 "(in 512-byte sectors): " 3885 "number of blocks\n"); 3886 dump_histogram(zb->zb_psize_histogram, 3887 PSIZE_HISTO_SIZE, 0); 3888 } 3889 } 3890 } 3891 } 3892 3893 (void) printf("\n"); 3894 3895 if (leaks) 3896 return (2); 3897 3898 if (zcb.zcb_haderrors) 3899 return (3); 3900 3901 return (0); 3902 } 3903 3904 typedef struct zdb_ddt_entry { 3905 ddt_key_t zdde_key; 3906 uint64_t zdde_ref_blocks; 3907 uint64_t zdde_ref_lsize; 3908 uint64_t zdde_ref_psize; 3909 uint64_t zdde_ref_dsize; 3910 avl_node_t zdde_node; 3911 } zdb_ddt_entry_t; 3912 3913 /* ARGSUSED */ 3914 static int 3915 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 3916 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3917 { 3918 avl_tree_t *t = arg; 3919 avl_index_t where; 3920 zdb_ddt_entry_t *zdde, zdde_search; 3921 3922 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 3923 return (0); 3924 3925 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 3926 (void) printf("traversing objset %llu, %llu objects, " 3927 "%lu blocks so far\n", 3928 (u_longlong_t)zb->zb_objset, 3929 (u_longlong_t)BP_GET_FILL(bp), 3930 avl_numnodes(t)); 3931 } 3932 3933 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 3934 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 3935 return (0); 3936 3937 ddt_key_fill(&zdde_search.zdde_key, bp); 3938 3939 zdde = avl_find(t, &zdde_search, &where); 3940 3941 if (zdde == NULL) { 3942 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 3943 zdde->zdde_key = zdde_search.zdde_key; 3944 avl_insert(t, zdde, where); 3945 } 3946 3947 zdde->zdde_ref_blocks += 1; 3948 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 3949 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 3950 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 3951 3952 return (0); 3953 } 3954 3955 static void 3956 dump_simulated_ddt(spa_t *spa) 3957 { 3958 avl_tree_t t; 3959 void *cookie = NULL; 3960 zdb_ddt_entry_t *zdde; 3961 ddt_histogram_t ddh_total; 3962 ddt_stat_t dds_total; 3963 3964 bzero(&ddh_total, sizeof (ddh_total)); 3965 bzero(&dds_total, sizeof (dds_total)); 3966 avl_create(&t, ddt_entry_compare, 3967 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 3968 3969 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3970 3971 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 3972 zdb_ddt_add_cb, &t); 3973 3974 spa_config_exit(spa, SCL_CONFIG, FTAG); 3975 3976 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 3977 ddt_stat_t dds; 3978 uint64_t refcnt = zdde->zdde_ref_blocks; 3979 ASSERT(refcnt != 0); 3980 3981 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 3982 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 3983 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 3984 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 3985 3986 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 3987 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 3988 dds.dds_ref_psize = zdde->zdde_ref_psize; 3989 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 3990 3991 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 3992 &dds, 0); 3993 3994 umem_free(zdde, sizeof (*zdde)); 3995 } 3996 3997 avl_destroy(&t); 3998 3999 ddt_histogram_stat(&dds_total, &ddh_total); 4000 4001 (void) printf("Simulated DDT histogram:\n"); 4002 4003 zpool_dump_ddt(&dds_total, &ddh_total); 4004 4005 dump_dedup_ratio(&dds_total); 4006 } 4007 4008 static int 4009 verify_device_removal_feature_counts(spa_t *spa) 4010 { 4011 uint64_t dr_feature_refcount = 0; 4012 uint64_t oc_feature_refcount = 0; 4013 uint64_t indirect_vdev_count = 0; 4014 uint64_t precise_vdev_count = 0; 4015 uint64_t obsolete_counts_object_count = 0; 4016 uint64_t obsolete_sm_count = 0; 4017 uint64_t obsolete_counts_count = 0; 4018 uint64_t scip_count = 0; 4019 uint64_t obsolete_bpobj_count = 0; 4020 int ret = 0; 4021 4022 spa_condensing_indirect_phys_t *scip = 4023 &spa->spa_condensing_indirect_phys; 4024 if (scip->scip_next_mapping_object != 0) { 4025 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev]; 4026 ASSERT(scip->scip_prev_obsolete_sm_object != 0); 4027 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops); 4028 4029 (void) printf("Condensing indirect vdev %llu: new mapping " 4030 "object %llu, prev obsolete sm %llu\n", 4031 (u_longlong_t)scip->scip_vdev, 4032 (u_longlong_t)scip->scip_next_mapping_object, 4033 (u_longlong_t)scip->scip_prev_obsolete_sm_object); 4034 if (scip->scip_prev_obsolete_sm_object != 0) { 4035 space_map_t *prev_obsolete_sm = NULL; 4036 VERIFY0(space_map_open(&prev_obsolete_sm, 4037 spa->spa_meta_objset, 4038 scip->scip_prev_obsolete_sm_object, 4039 0, vd->vdev_asize, 0)); 4040 space_map_update(prev_obsolete_sm); 4041 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm); 4042 (void) printf("\n"); 4043 space_map_close(prev_obsolete_sm); 4044 } 4045 4046 scip_count += 2; 4047 } 4048 4049 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) { 4050 vdev_t *vd = spa->spa_root_vdev->vdev_child[i]; 4051 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 4052 4053 if (vic->vic_mapping_object != 0) { 4054 ASSERT(vd->vdev_ops == &vdev_indirect_ops || 4055 vd->vdev_removing); 4056 indirect_vdev_count++; 4057 4058 if (vd->vdev_indirect_mapping->vim_havecounts) { 4059 obsolete_counts_count++; 4060 } 4061 } 4062 if (vdev_obsolete_counts_are_precise(vd)) { 4063 ASSERT(vic->vic_mapping_object != 0); 4064 precise_vdev_count++; 4065 } 4066 if (vdev_obsolete_sm_object(vd) != 0) { 4067 ASSERT(vic->vic_mapping_object != 0); 4068 obsolete_sm_count++; 4069 } 4070 } 4071 4072 (void) feature_get_refcount(spa, 4073 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL], 4074 &dr_feature_refcount); 4075 (void) feature_get_refcount(spa, 4076 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS], 4077 &oc_feature_refcount); 4078 4079 if (dr_feature_refcount != indirect_vdev_count) { 4080 ret = 1; 4081 (void) printf("Number of indirect vdevs (%llu) " \ 4082 "does not match feature count (%llu)\n", 4083 (u_longlong_t)indirect_vdev_count, 4084 (u_longlong_t)dr_feature_refcount); 4085 } else { 4086 (void) printf("Verified device_removal feature refcount " \ 4087 "of %llu is correct\n", 4088 (u_longlong_t)dr_feature_refcount); 4089 } 4090 4091 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT, 4092 DMU_POOL_OBSOLETE_BPOBJ) == 0) { 4093 obsolete_bpobj_count++; 4094 } 4095 4096 4097 obsolete_counts_object_count = precise_vdev_count; 4098 obsolete_counts_object_count += obsolete_sm_count; 4099 obsolete_counts_object_count += obsolete_counts_count; 4100 obsolete_counts_object_count += scip_count; 4101 obsolete_counts_object_count += obsolete_bpobj_count; 4102 obsolete_counts_object_count += remap_deadlist_count; 4103 4104 if (oc_feature_refcount != obsolete_counts_object_count) { 4105 ret = 1; 4106 (void) printf("Number of obsolete counts objects (%llu) " \ 4107 "does not match feature count (%llu)\n", 4108 (u_longlong_t)obsolete_counts_object_count, 4109 (u_longlong_t)oc_feature_refcount); 4110 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu " 4111 "ob:%llu rd:%llu\n", 4112 (u_longlong_t)precise_vdev_count, 4113 (u_longlong_t)obsolete_sm_count, 4114 (u_longlong_t)obsolete_counts_count, 4115 (u_longlong_t)scip_count, 4116 (u_longlong_t)obsolete_bpobj_count, 4117 (u_longlong_t)remap_deadlist_count); 4118 } else { 4119 (void) printf("Verified indirect_refcount feature refcount " \ 4120 "of %llu is correct\n", 4121 (u_longlong_t)oc_feature_refcount); 4122 } 4123 return (ret); 4124 } 4125 4126 #define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE" 4127 /* 4128 * Import the checkpointed state of the pool specified by the target 4129 * parameter as readonly. The function also accepts a pool config 4130 * as an optional parameter, else it attempts to infer the config by 4131 * the name of the target pool. 4132 * 4133 * Note that the checkpointed state's pool name will be the name of 4134 * the original pool with the above suffix appened to it. In addition, 4135 * if the target is not a pool name (e.g. a path to a dataset) then 4136 * the new_path parameter is populated with the updated path to 4137 * reflect the fact that we are looking into the checkpointed state. 4138 * 4139 * The function returns a newly-allocated copy of the name of the 4140 * pool containing the checkpointed state. When this copy is no 4141 * longer needed it should be freed with free(3C). Same thing 4142 * applies to the new_path parameter if allocated. 4143 */ 4144 static char * 4145 import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path) 4146 { 4147 int error = 0; 4148 char *poolname, *bogus_name; 4149 4150 /* If the target is not a pool, the extract the pool name */ 4151 char *path_start = strchr(target, '/'); 4152 if (path_start != NULL) { 4153 size_t poolname_len = path_start - target; 4154 poolname = strndup(target, poolname_len); 4155 } else { 4156 poolname = target; 4157 } 4158 4159 if (cfg == NULL) { 4160 error = spa_get_stats(poolname, &cfg, NULL, 0); 4161 if (error != 0) { 4162 fatal("Tried to read config of pool \"%s\" but " 4163 "spa_get_stats() failed with error %d\n", 4164 poolname, error); 4165 } 4166 } 4167 4168 (void) asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX); 4169 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name); 4170 4171 error = spa_import(bogus_name, cfg, NULL, 4172 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT); 4173 if (error != 0) { 4174 fatal("Tried to import pool \"%s\" but spa_import() failed " 4175 "with error %d\n", bogus_name, error); 4176 } 4177 4178 if (new_path != NULL && path_start != NULL) 4179 (void) asprintf(new_path, "%s%s", bogus_name, path_start); 4180 4181 if (target != poolname) 4182 free(poolname); 4183 4184 return (bogus_name); 4185 } 4186 4187 typedef struct verify_checkpoint_sm_entry_cb_arg { 4188 vdev_t *vcsec_vd; 4189 4190 /* the following fields are only used for printing progress */ 4191 uint64_t vcsec_entryid; 4192 uint64_t vcsec_num_entries; 4193 } verify_checkpoint_sm_entry_cb_arg_t; 4194 4195 #define ENTRIES_PER_PROGRESS_UPDATE 10000 4196 4197 static int 4198 verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg) 4199 { 4200 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg; 4201 vdev_t *vd = vcsec->vcsec_vd; 4202 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 4203 uint64_t end = sme->sme_offset + sme->sme_run; 4204 4205 ASSERT(sme->sme_type == SM_FREE); 4206 4207 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) { 4208 (void) fprintf(stderr, 4209 "\rverifying vdev %llu, space map entry %llu of %llu ...", 4210 (longlong_t)vd->vdev_id, 4211 (longlong_t)vcsec->vcsec_entryid, 4212 (longlong_t)vcsec->vcsec_num_entries); 4213 } 4214 vcsec->vcsec_entryid++; 4215 4216 /* 4217 * See comment in checkpoint_sm_exclude_entry_cb() 4218 */ 4219 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 4220 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 4221 4222 /* 4223 * The entries in the vdev_checkpoint_sm should be marked as 4224 * allocated in the checkpointed state of the pool, therefore 4225 * their respective ms_allocateable trees should not contain them. 4226 */ 4227 mutex_enter(&ms->ms_lock); 4228 range_tree_verify(ms->ms_allocatable, sme->sme_offset, sme->sme_run); 4229 mutex_exit(&ms->ms_lock); 4230 4231 return (0); 4232 } 4233 4234 /* 4235 * Verify that all segments in the vdev_checkpoint_sm are allocated 4236 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's 4237 * ms_allocatable). 4238 * 4239 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of 4240 * each vdev in the current state of the pool to the metaslab space maps 4241 * (ms_sm) of the checkpointed state of the pool. 4242 * 4243 * Note that the function changes the state of the ms_allocatable 4244 * trees of the current spa_t. The entries of these ms_allocatable 4245 * trees are cleared out and then repopulated from with the free 4246 * entries of their respective ms_sm space maps. 4247 */ 4248 static void 4249 verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current) 4250 { 4251 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 4252 vdev_t *current_rvd = current->spa_root_vdev; 4253 4254 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE); 4255 4256 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) { 4257 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c]; 4258 vdev_t *current_vd = current_rvd->vdev_child[c]; 4259 4260 space_map_t *checkpoint_sm = NULL; 4261 uint64_t checkpoint_sm_obj; 4262 4263 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 4264 /* 4265 * Since we don't allow device removal in a pool 4266 * that has a checkpoint, we expect that all removed 4267 * vdevs were removed from the pool before the 4268 * checkpoint. 4269 */ 4270 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 4271 continue; 4272 } 4273 4274 /* 4275 * If the checkpoint space map doesn't exist, then nothing 4276 * here is checkpointed so there's nothing to verify. 4277 */ 4278 if (current_vd->vdev_top_zap == 0 || 4279 zap_contains(spa_meta_objset(current), 4280 current_vd->vdev_top_zap, 4281 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 4282 continue; 4283 4284 VERIFY0(zap_lookup(spa_meta_objset(current), 4285 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 4286 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 4287 4288 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current), 4289 checkpoint_sm_obj, 0, current_vd->vdev_asize, 4290 current_vd->vdev_ashift)); 4291 space_map_update(checkpoint_sm); 4292 4293 verify_checkpoint_sm_entry_cb_arg_t vcsec; 4294 vcsec.vcsec_vd = ckpoint_vd; 4295 vcsec.vcsec_entryid = 0; 4296 vcsec.vcsec_num_entries = 4297 space_map_length(checkpoint_sm) / sizeof (uint64_t); 4298 VERIFY0(space_map_iterate(checkpoint_sm, 4299 verify_checkpoint_sm_entry_cb, &vcsec)); 4300 dump_spacemap(current->spa_meta_objset, checkpoint_sm); 4301 space_map_close(checkpoint_sm); 4302 } 4303 4304 /* 4305 * If we've added vdevs since we took the checkpoint, ensure 4306 * that their checkpoint space maps are empty. 4307 */ 4308 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) { 4309 for (uint64_t c = ckpoint_rvd->vdev_children; 4310 c < current_rvd->vdev_children; c++) { 4311 vdev_t *current_vd = current_rvd->vdev_child[c]; 4312 ASSERT3P(current_vd->vdev_checkpoint_sm, ==, NULL); 4313 } 4314 } 4315 4316 /* for cleaner progress output */ 4317 (void) fprintf(stderr, "\n"); 4318 } 4319 4320 /* 4321 * Verifies that all space that's allocated in the checkpoint is 4322 * still allocated in the current version, by checking that everything 4323 * in checkpoint's ms_allocatable (which is actually allocated, not 4324 * allocatable/free) is not present in current's ms_allocatable. 4325 * 4326 * Note that the function changes the state of the ms_allocatable 4327 * trees of both spas when called. The entries of all ms_allocatable 4328 * trees are cleared out and then repopulated from their respective 4329 * ms_sm space maps. In the checkpointed state we load the allocated 4330 * entries, and in the current state we load the free entries. 4331 */ 4332 static void 4333 verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current) 4334 { 4335 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 4336 vdev_t *current_rvd = current->spa_root_vdev; 4337 4338 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC); 4339 load_concrete_ms_allocatable_trees(current, SM_FREE); 4340 4341 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) { 4342 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i]; 4343 vdev_t *current_vd = current_rvd->vdev_child[i]; 4344 4345 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 4346 /* 4347 * See comment in verify_checkpoint_vdev_spacemaps() 4348 */ 4349 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 4350 continue; 4351 } 4352 4353 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) { 4354 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m]; 4355 metaslab_t *current_msp = current_vd->vdev_ms[m]; 4356 4357 (void) fprintf(stderr, 4358 "\rverifying vdev %llu of %llu, " 4359 "metaslab %llu of %llu ...", 4360 (longlong_t)current_vd->vdev_id, 4361 (longlong_t)current_rvd->vdev_children, 4362 (longlong_t)current_vd->vdev_ms[m]->ms_id, 4363 (longlong_t)current_vd->vdev_ms_count); 4364 4365 /* 4366 * We walk through the ms_allocatable trees that 4367 * are loaded with the allocated blocks from the 4368 * ms_sm spacemaps of the checkpoint. For each 4369 * one of these ranges we ensure that none of them 4370 * exists in the ms_allocatable trees of the 4371 * current state which are loaded with the ranges 4372 * that are currently free. 4373 * 4374 * This way we ensure that none of the blocks that 4375 * are part of the checkpoint were freed by mistake. 4376 */ 4377 range_tree_walk(ckpoint_msp->ms_allocatable, 4378 (range_tree_func_t *)range_tree_verify, 4379 current_msp->ms_allocatable); 4380 } 4381 } 4382 4383 /* for cleaner progress output */ 4384 (void) fprintf(stderr, "\n"); 4385 } 4386 4387 static void 4388 verify_checkpoint_blocks(spa_t *spa) 4389 { 4390 spa_t *checkpoint_spa; 4391 char *checkpoint_pool; 4392 nvlist_t *config = NULL; 4393 int error = 0; 4394 4395 /* 4396 * We import the checkpointed state of the pool (under a different 4397 * name) so we can do verification on it against the current state 4398 * of the pool. 4399 */ 4400 checkpoint_pool = import_checkpointed_state(spa->spa_name, config, 4401 NULL); 4402 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0); 4403 4404 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG); 4405 if (error != 0) { 4406 fatal("Tried to open pool \"%s\" but spa_open() failed with " 4407 "error %d\n", checkpoint_pool, error); 4408 } 4409 4410 /* 4411 * Ensure that ranges in the checkpoint space maps of each vdev 4412 * are allocated according to the checkpointed state's metaslab 4413 * space maps. 4414 */ 4415 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa); 4416 4417 /* 4418 * Ensure that allocated ranges in the checkpoint's metaslab 4419 * space maps remain allocated in the metaslab space maps of 4420 * the current state. 4421 */ 4422 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa); 4423 4424 /* 4425 * Once we are done, we get rid of the checkpointed state. 4426 */ 4427 spa_close(checkpoint_spa, FTAG); 4428 free(checkpoint_pool); 4429 } 4430 4431 static void 4432 dump_leftover_checkpoint_blocks(spa_t *spa) 4433 { 4434 vdev_t *rvd = spa->spa_root_vdev; 4435 4436 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 4437 vdev_t *vd = rvd->vdev_child[i]; 4438 4439 space_map_t *checkpoint_sm = NULL; 4440 uint64_t checkpoint_sm_obj; 4441 4442 if (vd->vdev_top_zap == 0) 4443 continue; 4444 4445 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 4446 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 4447 continue; 4448 4449 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 4450 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 4451 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 4452 4453 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 4454 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 4455 space_map_update(checkpoint_sm); 4456 dump_spacemap(spa->spa_meta_objset, checkpoint_sm); 4457 space_map_close(checkpoint_sm); 4458 } 4459 } 4460 4461 static int 4462 verify_checkpoint(spa_t *spa) 4463 { 4464 uberblock_t checkpoint; 4465 int error; 4466 4467 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) 4468 return (0); 4469 4470 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, 4471 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), 4472 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); 4473 4474 if (error == ENOENT && !dump_opt['L']) { 4475 /* 4476 * If the feature is active but the uberblock is missing 4477 * then we must be in the middle of discarding the 4478 * checkpoint. 4479 */ 4480 (void) printf("\nPartially discarded checkpoint " 4481 "state found:\n"); 4482 dump_leftover_checkpoint_blocks(spa); 4483 return (0); 4484 } else if (error != 0) { 4485 (void) printf("lookup error %d when looking for " 4486 "checkpointed uberblock in MOS\n", error); 4487 return (error); 4488 } 4489 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n"); 4490 4491 if (checkpoint.ub_checkpoint_txg == 0) { 4492 (void) printf("\nub_checkpoint_txg not set in checkpointed " 4493 "uberblock\n"); 4494 error = 3; 4495 } 4496 4497 if (error == 0 && !dump_opt['L']) 4498 verify_checkpoint_blocks(spa); 4499 4500 return (error); 4501 } 4502 4503 /* ARGSUSED */ 4504 static void 4505 mos_leaks_cb(void *arg, uint64_t start, uint64_t size) 4506 { 4507 for (uint64_t i = start; i < size; i++) { 4508 (void) printf("MOS object %llu referenced but not allocated\n", 4509 (u_longlong_t)i); 4510 } 4511 } 4512 4513 static range_tree_t *mos_refd_objs; 4514 4515 static void 4516 mos_obj_refd(uint64_t obj) 4517 { 4518 if (obj != 0 && mos_refd_objs != NULL) 4519 range_tree_add(mos_refd_objs, obj, 1); 4520 } 4521 4522 static void 4523 mos_leak_vdev(vdev_t *vd) 4524 { 4525 mos_obj_refd(vd->vdev_dtl_object); 4526 mos_obj_refd(vd->vdev_ms_array); 4527 mos_obj_refd(vd->vdev_top_zap); 4528 mos_obj_refd(vd->vdev_indirect_config.vic_births_object); 4529 mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object); 4530 mos_obj_refd(vd->vdev_leaf_zap); 4531 if (vd->vdev_checkpoint_sm != NULL) 4532 mos_obj_refd(vd->vdev_checkpoint_sm->sm_object); 4533 if (vd->vdev_indirect_mapping != NULL) { 4534 mos_obj_refd(vd->vdev_indirect_mapping-> 4535 vim_phys->vimp_counts_object); 4536 } 4537 if (vd->vdev_obsolete_sm != NULL) 4538 mos_obj_refd(vd->vdev_obsolete_sm->sm_object); 4539 4540 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 4541 metaslab_t *ms = vd->vdev_ms[m]; 4542 mos_obj_refd(space_map_object(ms->ms_sm)); 4543 } 4544 4545 for (uint64_t c = 0; c < vd->vdev_children; c++) { 4546 mos_leak_vdev(vd->vdev_child[c]); 4547 } 4548 } 4549 4550 static int 4551 dump_mos_leaks(spa_t *spa) 4552 { 4553 int rv = 0; 4554 objset_t *mos = spa->spa_meta_objset; 4555 dsl_pool_t *dp = spa->spa_dsl_pool; 4556 4557 /* Visit and mark all referenced objects in the MOS */ 4558 4559 mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT); 4560 mos_obj_refd(spa->spa_pool_props_object); 4561 mos_obj_refd(spa->spa_config_object); 4562 mos_obj_refd(spa->spa_ddt_stat_object); 4563 mos_obj_refd(spa->spa_feat_desc_obj); 4564 mos_obj_refd(spa->spa_feat_enabled_txg_obj); 4565 mos_obj_refd(spa->spa_feat_for_read_obj); 4566 mos_obj_refd(spa->spa_feat_for_write_obj); 4567 mos_obj_refd(spa->spa_history); 4568 mos_obj_refd(spa->spa_errlog_last); 4569 mos_obj_refd(spa->spa_errlog_scrub); 4570 mos_obj_refd(spa->spa_all_vdev_zaps); 4571 mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj); 4572 mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj); 4573 mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj); 4574 bpobj_count_refd(&spa->spa_deferred_bpobj); 4575 mos_obj_refd(dp->dp_empty_bpobj); 4576 bpobj_count_refd(&dp->dp_obsolete_bpobj); 4577 bpobj_count_refd(&dp->dp_free_bpobj); 4578 mos_obj_refd(spa->spa_l2cache.sav_object); 4579 mos_obj_refd(spa->spa_spares.sav_object); 4580 4581 mos_obj_refd(spa->spa_condensing_indirect_phys. 4582 scip_next_mapping_object); 4583 mos_obj_refd(spa->spa_condensing_indirect_phys. 4584 scip_prev_obsolete_sm_object); 4585 if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) { 4586 vdev_indirect_mapping_t *vim = 4587 vdev_indirect_mapping_open(mos, 4588 spa->spa_condensing_indirect_phys.scip_next_mapping_object); 4589 mos_obj_refd(vim->vim_phys->vimp_counts_object); 4590 vdev_indirect_mapping_close(vim); 4591 } 4592 4593 if (dp->dp_origin_snap != NULL) { 4594 dsl_dataset_t *ds; 4595 4596 dsl_pool_config_enter(dp, FTAG); 4597 VERIFY0(dsl_dataset_hold_obj(dp, 4598 dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj, 4599 FTAG, &ds)); 4600 count_ds_mos_objects(ds); 4601 dump_deadlist(&ds->ds_deadlist); 4602 dsl_dataset_rele(ds, FTAG); 4603 dsl_pool_config_exit(dp, FTAG); 4604 4605 count_ds_mos_objects(dp->dp_origin_snap); 4606 dump_deadlist(&dp->dp_origin_snap->ds_deadlist); 4607 } 4608 count_dir_mos_objects(dp->dp_mos_dir); 4609 if (dp->dp_free_dir != NULL) 4610 count_dir_mos_objects(dp->dp_free_dir); 4611 if (dp->dp_leak_dir != NULL) 4612 count_dir_mos_objects(dp->dp_leak_dir); 4613 4614 mos_leak_vdev(spa->spa_root_vdev); 4615 4616 for (uint64_t class = 0; class < DDT_CLASSES; class++) { 4617 for (uint64_t type = 0; type < DDT_TYPES; type++) { 4618 for (uint64_t cksum = 0; 4619 cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) { 4620 ddt_t *ddt = spa->spa_ddt[cksum]; 4621 mos_obj_refd(ddt->ddt_object[type][class]); 4622 } 4623 } 4624 } 4625 4626 /* 4627 * Visit all allocated objects and make sure they are referenced. 4628 */ 4629 uint64_t object = 0; 4630 while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) { 4631 if (range_tree_contains(mos_refd_objs, object, 1)) { 4632 range_tree_remove(mos_refd_objs, object, 1); 4633 } else { 4634 dmu_object_info_t doi; 4635 const char *name; 4636 dmu_object_info(mos, object, &doi); 4637 if (doi.doi_type & DMU_OT_NEWTYPE) { 4638 dmu_object_byteswap_t bswap = 4639 DMU_OT_BYTESWAP(doi.doi_type); 4640 name = dmu_ot_byteswap[bswap].ob_name; 4641 } else { 4642 name = dmu_ot[doi.doi_type].ot_name; 4643 } 4644 4645 (void) printf("MOS object %llu (%s) leaked\n", 4646 (u_longlong_t)object, name); 4647 rv = 2; 4648 } 4649 } 4650 (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL); 4651 if (!range_tree_is_empty(mos_refd_objs)) 4652 rv = 2; 4653 range_tree_vacate(mos_refd_objs, NULL, NULL); 4654 range_tree_destroy(mos_refd_objs); 4655 return (rv); 4656 } 4657 4658 static void 4659 dump_zpool(spa_t *spa) 4660 { 4661 dsl_pool_t *dp = spa_get_dsl(spa); 4662 int rc = 0; 4663 4664 if (dump_opt['S']) { 4665 dump_simulated_ddt(spa); 4666 return; 4667 } 4668 4669 if (!dump_opt['e'] && dump_opt['C'] > 1) { 4670 (void) printf("\nCached configuration:\n"); 4671 dump_nvlist(spa->spa_config, 8); 4672 } 4673 4674 if (dump_opt['C']) 4675 dump_config(spa); 4676 4677 if (dump_opt['u']) 4678 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 4679 4680 if (dump_opt['D']) 4681 dump_all_ddts(spa); 4682 4683 if (dump_opt['d'] > 2 || dump_opt['m']) 4684 dump_metaslabs(spa); 4685 if (dump_opt['M']) 4686 dump_metaslab_groups(spa); 4687 4688 if (dump_opt['d'] || dump_opt['i']) { 4689 mos_refd_objs = range_tree_create(NULL, NULL); 4690 dump_dir(dp->dp_meta_objset); 4691 4692 if (dump_opt['d'] >= 3) { 4693 dsl_pool_t *dp = spa->spa_dsl_pool; 4694 dump_full_bpobj(&spa->spa_deferred_bpobj, 4695 "Deferred frees", 0); 4696 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 4697 dump_full_bpobj(&dp->dp_free_bpobj, 4698 "Pool snapshot frees", 0); 4699 } 4700 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 4701 ASSERT(spa_feature_is_enabled(spa, 4702 SPA_FEATURE_DEVICE_REMOVAL)); 4703 dump_full_bpobj(&dp->dp_obsolete_bpobj, 4704 "Pool obsolete blocks", 0); 4705 } 4706 4707 if (spa_feature_is_active(spa, 4708 SPA_FEATURE_ASYNC_DESTROY)) { 4709 dump_bptree(spa->spa_meta_objset, 4710 dp->dp_bptree_obj, 4711 "Pool dataset frees"); 4712 } 4713 dump_dtl(spa->spa_root_vdev, 0); 4714 } 4715 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 4716 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 4717 4718 if (rc == 0 && !dump_opt['L']) 4719 rc = dump_mos_leaks(spa); 4720 4721 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 4722 uint64_t refcount; 4723 4724 if (!(spa_feature_table[f].fi_flags & 4725 ZFEATURE_FLAG_PER_DATASET) || 4726 !spa_feature_is_enabled(spa, f)) { 4727 ASSERT0(dataset_feature_count[f]); 4728 continue; 4729 } 4730 (void) feature_get_refcount(spa, 4731 &spa_feature_table[f], &refcount); 4732 if (dataset_feature_count[f] != refcount) { 4733 (void) printf("%s feature refcount mismatch: " 4734 "%lld datasets != %lld refcount\n", 4735 spa_feature_table[f].fi_uname, 4736 (longlong_t)dataset_feature_count[f], 4737 (longlong_t)refcount); 4738 rc = 2; 4739 } else { 4740 (void) printf("Verified %s feature refcount " 4741 "of %llu is correct\n", 4742 spa_feature_table[f].fi_uname, 4743 (longlong_t)refcount); 4744 } 4745 } 4746 4747 if (rc == 0) { 4748 rc = verify_device_removal_feature_counts(spa); 4749 } 4750 } 4751 4752 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 4753 rc = dump_block_stats(spa); 4754 4755 if (rc == 0) 4756 rc = verify_spacemap_refcounts(spa); 4757 4758 if (dump_opt['s']) 4759 show_pool_stats(spa); 4760 4761 if (dump_opt['h']) 4762 dump_history(spa); 4763 4764 if (rc == 0) 4765 rc = verify_checkpoint(spa); 4766 4767 if (rc != 0) { 4768 dump_debug_buffer(); 4769 exit(rc); 4770 } 4771 } 4772 4773 #define ZDB_FLAG_CHECKSUM 0x0001 4774 #define ZDB_FLAG_DECOMPRESS 0x0002 4775 #define ZDB_FLAG_BSWAP 0x0004 4776 #define ZDB_FLAG_GBH 0x0008 4777 #define ZDB_FLAG_INDIRECT 0x0010 4778 #define ZDB_FLAG_PHYS 0x0020 4779 #define ZDB_FLAG_RAW 0x0040 4780 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 4781 4782 static int flagbits[256]; 4783 4784 static void 4785 zdb_print_blkptr(blkptr_t *bp, int flags) 4786 { 4787 char blkbuf[BP_SPRINTF_LEN]; 4788 4789 if (flags & ZDB_FLAG_BSWAP) 4790 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 4791 4792 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 4793 (void) printf("%s\n", blkbuf); 4794 } 4795 4796 static void 4797 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 4798 { 4799 int i; 4800 4801 for (i = 0; i < nbps; i++) 4802 zdb_print_blkptr(&bp[i], flags); 4803 } 4804 4805 static void 4806 zdb_dump_gbh(void *buf, int flags) 4807 { 4808 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 4809 } 4810 4811 static void 4812 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 4813 { 4814 if (flags & ZDB_FLAG_BSWAP) 4815 byteswap_uint64_array(buf, size); 4816 (void) write(1, buf, size); 4817 } 4818 4819 static void 4820 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 4821 { 4822 uint64_t *d = (uint64_t *)buf; 4823 unsigned nwords = size / sizeof (uint64_t); 4824 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 4825 unsigned i, j; 4826 const char *hdr; 4827 char *c; 4828 4829 4830 if (do_bswap) 4831 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 4832 else 4833 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 4834 4835 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 4836 4837 for (i = 0; i < nwords; i += 2) { 4838 (void) printf("%06llx: %016llx %016llx ", 4839 (u_longlong_t)(i * sizeof (uint64_t)), 4840 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 4841 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 4842 4843 c = (char *)&d[i]; 4844 for (j = 0; j < 2 * sizeof (uint64_t); j++) 4845 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 4846 (void) printf("\n"); 4847 } 4848 } 4849 4850 /* 4851 * There are two acceptable formats: 4852 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 4853 * child[.child]* - For example: 0.1.1 4854 * 4855 * The second form can be used to specify arbitrary vdevs anywhere 4856 * in the heirarchy. For example, in a pool with a mirror of 4857 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 4858 */ 4859 static vdev_t * 4860 zdb_vdev_lookup(vdev_t *vdev, const char *path) 4861 { 4862 char *s, *p, *q; 4863 unsigned i; 4864 4865 if (vdev == NULL) 4866 return (NULL); 4867 4868 /* First, assume the x.x.x.x format */ 4869 i = strtoul(path, &s, 10); 4870 if (s == path || (s && *s != '.' && *s != '\0')) 4871 goto name; 4872 if (i >= vdev->vdev_children) 4873 return (NULL); 4874 4875 vdev = vdev->vdev_child[i]; 4876 if (*s == '\0') 4877 return (vdev); 4878 return (zdb_vdev_lookup(vdev, s+1)); 4879 4880 name: 4881 for (i = 0; i < vdev->vdev_children; i++) { 4882 vdev_t *vc = vdev->vdev_child[i]; 4883 4884 if (vc->vdev_path == NULL) { 4885 vc = zdb_vdev_lookup(vc, path); 4886 if (vc == NULL) 4887 continue; 4888 else 4889 return (vc); 4890 } 4891 4892 p = strrchr(vc->vdev_path, '/'); 4893 p = p ? p + 1 : vc->vdev_path; 4894 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 4895 4896 if (strcmp(vc->vdev_path, path) == 0) 4897 return (vc); 4898 if (strcmp(p, path) == 0) 4899 return (vc); 4900 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 4901 return (vc); 4902 } 4903 4904 return (NULL); 4905 } 4906 4907 /* ARGSUSED */ 4908 static int 4909 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused) 4910 { 4911 return (random_get_pseudo_bytes(buf, len)); 4912 } 4913 4914 /* 4915 * Read a block from a pool and print it out. The syntax of the 4916 * block descriptor is: 4917 * 4918 * pool:vdev_specifier:offset:size[:flags] 4919 * 4920 * pool - The name of the pool you wish to read from 4921 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 4922 * offset - offset, in hex, in bytes 4923 * size - Amount of data to read, in hex, in bytes 4924 * flags - A string of characters specifying options 4925 * b: Decode a blkptr at given offset within block 4926 * *c: Calculate and display checksums 4927 * d: Decompress data before dumping 4928 * e: Byteswap data before dumping 4929 * g: Display data as a gang block header 4930 * i: Display as an indirect block 4931 * p: Do I/O to physical offset 4932 * r: Dump raw data to stdout 4933 * 4934 * * = not yet implemented 4935 */ 4936 static void 4937 zdb_read_block(char *thing, spa_t *spa) 4938 { 4939 blkptr_t blk, *bp = &blk; 4940 dva_t *dva = bp->blk_dva; 4941 int flags = 0; 4942 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 4943 zio_t *zio; 4944 vdev_t *vd; 4945 abd_t *pabd; 4946 void *lbuf, *buf; 4947 const char *s, *vdev; 4948 char *p, *dup, *flagstr; 4949 int i, error; 4950 4951 dup = strdup(thing); 4952 s = strtok(dup, ":"); 4953 vdev = s ? s : ""; 4954 s = strtok(NULL, ":"); 4955 offset = strtoull(s ? s : "", NULL, 16); 4956 s = strtok(NULL, ":"); 4957 size = strtoull(s ? s : "", NULL, 16); 4958 s = strtok(NULL, ":"); 4959 if (s) 4960 flagstr = strdup(s); 4961 else 4962 flagstr = strdup(""); 4963 4964 s = NULL; 4965 if (size == 0) 4966 s = "size must not be zero"; 4967 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 4968 s = "size must be a multiple of sector size"; 4969 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 4970 s = "offset must be a multiple of sector size"; 4971 if (s) { 4972 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 4973 free(dup); 4974 return; 4975 } 4976 4977 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 4978 for (i = 0; flagstr[i]; i++) { 4979 int bit = flagbits[(uchar_t)flagstr[i]]; 4980 4981 if (bit == 0) { 4982 (void) printf("***Invalid flag: %c\n", 4983 flagstr[i]); 4984 continue; 4985 } 4986 flags |= bit; 4987 4988 /* If it's not something with an argument, keep going */ 4989 if ((bit & (ZDB_FLAG_CHECKSUM | 4990 ZDB_FLAG_PRINT_BLKPTR)) == 0) 4991 continue; 4992 4993 p = &flagstr[i + 1]; 4994 if (bit == ZDB_FLAG_PRINT_BLKPTR) 4995 blkptr_offset = strtoull(p, &p, 16); 4996 if (*p != ':' && *p != '\0') { 4997 (void) printf("***Invalid flag arg: '%s'\n", s); 4998 free(dup); 4999 return; 5000 } 5001 } 5002 } 5003 free(flagstr); 5004 5005 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 5006 if (vd == NULL) { 5007 (void) printf("***Invalid vdev: %s\n", vdev); 5008 free(dup); 5009 return; 5010 } else { 5011 if (vd->vdev_path) 5012 (void) fprintf(stderr, "Found vdev: %s\n", 5013 vd->vdev_path); 5014 else 5015 (void) fprintf(stderr, "Found vdev type: %s\n", 5016 vd->vdev_ops->vdev_op_type); 5017 } 5018 5019 psize = size; 5020 lsize = size; 5021 5022 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE); 5023 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 5024 5025 BP_ZERO(bp); 5026 5027 DVA_SET_VDEV(&dva[0], vd->vdev_id); 5028 DVA_SET_OFFSET(&dva[0], offset); 5029 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 5030 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 5031 5032 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 5033 5034 BP_SET_LSIZE(bp, lsize); 5035 BP_SET_PSIZE(bp, psize); 5036 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 5037 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 5038 BP_SET_TYPE(bp, DMU_OT_NONE); 5039 BP_SET_LEVEL(bp, 0); 5040 BP_SET_DEDUP(bp, 0); 5041 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 5042 5043 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 5044 zio = zio_root(spa, NULL, NULL, 0); 5045 5046 if (vd == vd->vdev_top) { 5047 /* 5048 * Treat this as a normal block read. 5049 */ 5050 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, 5051 ZIO_PRIORITY_SYNC_READ, 5052 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 5053 } else { 5054 /* 5055 * Treat this as a vdev child I/O. 5056 */ 5057 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, 5058 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 5059 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 5060 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 5061 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL, 5062 NULL, NULL)); 5063 } 5064 5065 error = zio_wait(zio); 5066 spa_config_exit(spa, SCL_STATE, FTAG); 5067 5068 if (error) { 5069 (void) printf("Read of %s failed, error: %d\n", thing, error); 5070 goto out; 5071 } 5072 5073 if (flags & ZDB_FLAG_DECOMPRESS) { 5074 /* 5075 * We don't know how the data was compressed, so just try 5076 * every decompress function at every inflated blocksize. 5077 */ 5078 enum zio_compress c; 5079 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 5080 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 5081 5082 abd_copy_to_buf(pbuf2, pabd, psize); 5083 5084 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize, 5085 random_get_pseudo_bytes_cb, NULL)); 5086 5087 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 5088 SPA_MAXBLOCKSIZE - psize)); 5089 5090 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 5091 lsize -= SPA_MINBLOCKSIZE) { 5092 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 5093 if (zio_decompress_data(c, pabd, 5094 lbuf, psize, lsize) == 0 && 5095 zio_decompress_data_buf(c, pbuf2, 5096 lbuf2, psize, lsize) == 0 && 5097 bcmp(lbuf, lbuf2, lsize) == 0) 5098 break; 5099 } 5100 if (c != ZIO_COMPRESS_FUNCTIONS) 5101 break; 5102 lsize -= SPA_MINBLOCKSIZE; 5103 } 5104 5105 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 5106 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 5107 5108 if (lsize <= psize) { 5109 (void) printf("Decompress of %s failed\n", thing); 5110 goto out; 5111 } 5112 buf = lbuf; 5113 size = lsize; 5114 } else { 5115 buf = abd_to_buf(pabd); 5116 size = psize; 5117 } 5118 5119 if (flags & ZDB_FLAG_PRINT_BLKPTR) 5120 zdb_print_blkptr((blkptr_t *)(void *) 5121 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 5122 else if (flags & ZDB_FLAG_RAW) 5123 zdb_dump_block_raw(buf, size, flags); 5124 else if (flags & ZDB_FLAG_INDIRECT) 5125 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 5126 flags); 5127 else if (flags & ZDB_FLAG_GBH) 5128 zdb_dump_gbh(buf, flags); 5129 else 5130 zdb_dump_block(thing, buf, size, flags); 5131 5132 out: 5133 abd_free(pabd); 5134 umem_free(lbuf, SPA_MAXBLOCKSIZE); 5135 free(dup); 5136 } 5137 5138 static void 5139 zdb_embedded_block(char *thing) 5140 { 5141 blkptr_t bp; 5142 unsigned long long *words = (void *)&bp; 5143 char *buf; 5144 int err; 5145 5146 bzero(&bp, sizeof (bp)); 5147 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" 5148 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", 5149 words + 0, words + 1, words + 2, words + 3, 5150 words + 4, words + 5, words + 6, words + 7, 5151 words + 8, words + 9, words + 10, words + 11, 5152 words + 12, words + 13, words + 14, words + 15); 5153 if (err != 16) { 5154 (void) fprintf(stderr, "invalid input format\n"); 5155 exit(1); 5156 } 5157 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); 5158 buf = malloc(SPA_MAXBLOCKSIZE); 5159 if (buf == NULL) { 5160 (void) fprintf(stderr, "out of memory\n"); 5161 exit(1); 5162 } 5163 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); 5164 if (err != 0) { 5165 (void) fprintf(stderr, "decode failed: %u\n", err); 5166 exit(1); 5167 } 5168 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); 5169 free(buf); 5170 } 5171 5172 static boolean_t 5173 pool_match(nvlist_t *cfg, char *tgt) 5174 { 5175 uint64_t v, guid = strtoull(tgt, NULL, 0); 5176 char *s; 5177 5178 if (guid != 0) { 5179 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 5180 return (v == guid); 5181 } else { 5182 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 5183 return (strcmp(s, tgt) == 0); 5184 } 5185 return (B_FALSE); 5186 } 5187 5188 static char * 5189 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 5190 { 5191 nvlist_t *pools; 5192 nvlist_t *match = NULL; 5193 char *name = NULL; 5194 char *sepp = NULL; 5195 char sep = '\0'; 5196 int count = 0; 5197 importargs_t args; 5198 5199 bzero(&args, sizeof (args)); 5200 args.paths = dirc; 5201 args.path = dirv; 5202 args.can_be_active = B_TRUE; 5203 5204 if ((sepp = strpbrk(*target, "/@")) != NULL) { 5205 sep = *sepp; 5206 *sepp = '\0'; 5207 } 5208 5209 pools = zpool_search_import(g_zfs, &args); 5210 5211 if (pools != NULL) { 5212 nvpair_t *elem = NULL; 5213 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 5214 verify(nvpair_value_nvlist(elem, configp) == 0); 5215 if (pool_match(*configp, *target)) { 5216 count++; 5217 if (match != NULL) { 5218 /* print previously found config */ 5219 if (name != NULL) { 5220 (void) printf("%s\n", name); 5221 dump_nvlist(match, 8); 5222 name = NULL; 5223 } 5224 (void) printf("%s\n", 5225 nvpair_name(elem)); 5226 dump_nvlist(*configp, 8); 5227 } else { 5228 match = *configp; 5229 name = nvpair_name(elem); 5230 } 5231 } 5232 } 5233 } 5234 if (count > 1) 5235 (void) fatal("\tMatched %d pools - use pool GUID " 5236 "instead of pool name or \n" 5237 "\tpool name part of a dataset name to select pool", count); 5238 5239 if (sepp) 5240 *sepp = sep; 5241 /* 5242 * If pool GUID was specified for pool id, replace it with pool name 5243 */ 5244 if (name && (strstr(*target, name) != *target)) { 5245 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 5246 5247 *target = umem_alloc(sz, UMEM_NOFAIL); 5248 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 5249 } 5250 5251 *configp = name ? match : NULL; 5252 5253 return (name); 5254 } 5255 5256 int 5257 main(int argc, char **argv) 5258 { 5259 int c; 5260 struct rlimit rl = { 1024, 1024 }; 5261 spa_t *spa = NULL; 5262 objset_t *os = NULL; 5263 int dump_all = 1; 5264 int verbose = 0; 5265 int error = 0; 5266 char **searchdirs = NULL; 5267 int nsearch = 0; 5268 char *target; 5269 nvlist_t *policy = NULL; 5270 uint64_t max_txg = UINT64_MAX; 5271 int flags = ZFS_IMPORT_MISSING_LOG; 5272 int rewind = ZPOOL_NEVER_REWIND; 5273 char *spa_config_path_env; 5274 boolean_t target_is_spa = B_TRUE; 5275 nvlist_t *cfg = NULL; 5276 5277 (void) setrlimit(RLIMIT_NOFILE, &rl); 5278 (void) enable_extended_FILE_stdio(-1, -1); 5279 5280 dprintf_setup(&argc, argv); 5281 5282 /* 5283 * If there is an environment variable SPA_CONFIG_PATH it overrides 5284 * default spa_config_path setting. If -U flag is specified it will 5285 * override this environment variable settings once again. 5286 */ 5287 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 5288 if (spa_config_path_env != NULL) 5289 spa_config_path = spa_config_path_env; 5290 5291 while ((c = getopt(argc, argv, 5292 "AbcCdDeEFGhiI:klLmMo:Op:PqRsSt:uU:vVx:X")) != -1) { 5293 switch (c) { 5294 case 'b': 5295 case 'c': 5296 case 'C': 5297 case 'd': 5298 case 'D': 5299 case 'E': 5300 case 'G': 5301 case 'h': 5302 case 'i': 5303 case 'l': 5304 case 'm': 5305 case 'M': 5306 case 'O': 5307 case 'R': 5308 case 's': 5309 case 'S': 5310 case 'u': 5311 dump_opt[c]++; 5312 dump_all = 0; 5313 break; 5314 case 'A': 5315 case 'e': 5316 case 'F': 5317 case 'k': 5318 case 'L': 5319 case 'P': 5320 case 'q': 5321 case 'X': 5322 dump_opt[c]++; 5323 break; 5324 /* NB: Sort single match options below. */ 5325 case 'I': 5326 max_inflight = strtoull(optarg, NULL, 0); 5327 if (max_inflight == 0) { 5328 (void) fprintf(stderr, "maximum number " 5329 "of inflight I/Os must be greater " 5330 "than 0\n"); 5331 usage(); 5332 } 5333 break; 5334 case 'o': 5335 error = set_global_var(optarg); 5336 if (error != 0) 5337 usage(); 5338 break; 5339 case 'p': 5340 if (searchdirs == NULL) { 5341 searchdirs = umem_alloc(sizeof (char *), 5342 UMEM_NOFAIL); 5343 } else { 5344 char **tmp = umem_alloc((nsearch + 1) * 5345 sizeof (char *), UMEM_NOFAIL); 5346 bcopy(searchdirs, tmp, nsearch * 5347 sizeof (char *)); 5348 umem_free(searchdirs, 5349 nsearch * sizeof (char *)); 5350 searchdirs = tmp; 5351 } 5352 searchdirs[nsearch++] = optarg; 5353 break; 5354 case 't': 5355 max_txg = strtoull(optarg, NULL, 0); 5356 if (max_txg < TXG_INITIAL) { 5357 (void) fprintf(stderr, "incorrect txg " 5358 "specified: %s\n", optarg); 5359 usage(); 5360 } 5361 break; 5362 case 'U': 5363 spa_config_path = optarg; 5364 if (spa_config_path[0] != '/') { 5365 (void) fprintf(stderr, 5366 "cachefile must be an absolute path " 5367 "(i.e. start with a slash)\n"); 5368 usage(); 5369 } 5370 break; 5371 case 'v': 5372 verbose++; 5373 break; 5374 case 'V': 5375 flags = ZFS_IMPORT_VERBATIM; 5376 break; 5377 case 'x': 5378 vn_dumpdir = optarg; 5379 break; 5380 default: 5381 usage(); 5382 break; 5383 } 5384 } 5385 5386 if (!dump_opt['e'] && searchdirs != NULL) { 5387 (void) fprintf(stderr, "-p option requires use of -e\n"); 5388 usage(); 5389 } 5390 5391 /* 5392 * ZDB does not typically re-read blocks; therefore limit the ARC 5393 * to 256 MB, which can be used entirely for metadata. 5394 */ 5395 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 5396 5397 /* 5398 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 5399 * "zdb -b" uses traversal prefetch which uses async reads. 5400 * For good performance, let several of them be active at once. 5401 */ 5402 zfs_vdev_async_read_max_active = 10; 5403 5404 /* 5405 * Disable reference tracking for better performance. 5406 */ 5407 reference_tracking_enable = B_FALSE; 5408 5409 /* 5410 * Do not fail spa_load when spa_load_verify fails. This is needed 5411 * to load non-idle pools. 5412 */ 5413 spa_load_verify_dryrun = B_TRUE; 5414 5415 kernel_init(FREAD); 5416 g_zfs = libzfs_init(); 5417 ASSERT(g_zfs != NULL); 5418 5419 if (dump_all) 5420 verbose = MAX(verbose, 1); 5421 5422 for (c = 0; c < 256; c++) { 5423 if (dump_all && strchr("AeEFklLOPRSX", c) == NULL) 5424 dump_opt[c] = 1; 5425 if (dump_opt[c]) 5426 dump_opt[c] += verbose; 5427 } 5428 5429 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 5430 zfs_recover = (dump_opt['A'] > 1); 5431 5432 argc -= optind; 5433 argv += optind; 5434 5435 if (argc < 2 && dump_opt['R']) 5436 usage(); 5437 5438 if (dump_opt['E']) { 5439 if (argc != 1) 5440 usage(); 5441 zdb_embedded_block(argv[0]); 5442 return (0); 5443 } 5444 5445 if (argc < 1) { 5446 if (!dump_opt['e'] && dump_opt['C']) { 5447 dump_cachefile(spa_config_path); 5448 return (0); 5449 } 5450 usage(); 5451 } 5452 5453 if (dump_opt['l']) 5454 return (dump_label(argv[0])); 5455 5456 if (dump_opt['O']) { 5457 if (argc != 2) 5458 usage(); 5459 dump_opt['v'] = verbose + 3; 5460 return (dump_path(argv[0], argv[1])); 5461 } 5462 5463 if (dump_opt['X'] || dump_opt['F']) 5464 rewind = ZPOOL_DO_REWIND | 5465 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 5466 5467 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 5468 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 || 5469 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0) 5470 fatal("internal error: %s", strerror(ENOMEM)); 5471 5472 error = 0; 5473 target = argv[0]; 5474 5475 if (dump_opt['e']) { 5476 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 5477 5478 error = ENOENT; 5479 if (name) { 5480 if (dump_opt['C'] > 1) { 5481 (void) printf("\nConfiguration for import:\n"); 5482 dump_nvlist(cfg, 8); 5483 } 5484 5485 if (nvlist_add_nvlist(cfg, 5486 ZPOOL_LOAD_POLICY, policy) != 0) { 5487 fatal("can't open '%s': %s", 5488 target, strerror(ENOMEM)); 5489 } 5490 error = spa_import(name, cfg, NULL, flags); 5491 } 5492 } 5493 5494 char *checkpoint_pool = NULL; 5495 char *checkpoint_target = NULL; 5496 if (dump_opt['k']) { 5497 checkpoint_pool = import_checkpointed_state(target, cfg, 5498 &checkpoint_target); 5499 5500 if (checkpoint_target != NULL) 5501 target = checkpoint_target; 5502 5503 } 5504 5505 if (strpbrk(target, "/@") != NULL) { 5506 size_t targetlen; 5507 5508 target_is_spa = B_FALSE; 5509 /* 5510 * Remove any trailing slash. Later code would get confused 5511 * by it, but we want to allow it so that "pool/" can 5512 * indicate that we want to dump the topmost filesystem, 5513 * rather than the whole pool. 5514 */ 5515 targetlen = strlen(target); 5516 if (targetlen != 0 && target[targetlen - 1] == '/') 5517 target[targetlen - 1] = '\0'; 5518 } 5519 5520 if (error == 0) { 5521 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) { 5522 ASSERT(checkpoint_pool != NULL); 5523 ASSERT(checkpoint_target == NULL); 5524 5525 error = spa_open(checkpoint_pool, &spa, FTAG); 5526 if (error != 0) { 5527 fatal("Tried to open pool \"%s\" but " 5528 "spa_open() failed with error %d\n", 5529 checkpoint_pool, error); 5530 } 5531 5532 } else if (target_is_spa || dump_opt['R']) { 5533 error = spa_open_rewind(target, &spa, FTAG, policy, 5534 NULL); 5535 if (error) { 5536 /* 5537 * If we're missing the log device then 5538 * try opening the pool after clearing the 5539 * log state. 5540 */ 5541 mutex_enter(&spa_namespace_lock); 5542 if ((spa = spa_lookup(target)) != NULL && 5543 spa->spa_log_state == SPA_LOG_MISSING) { 5544 spa->spa_log_state = SPA_LOG_CLEAR; 5545 error = 0; 5546 } 5547 mutex_exit(&spa_namespace_lock); 5548 5549 if (!error) { 5550 error = spa_open_rewind(target, &spa, 5551 FTAG, policy, NULL); 5552 } 5553 } 5554 } else { 5555 error = open_objset(target, DMU_OST_ANY, FTAG, &os); 5556 } 5557 } 5558 nvlist_free(policy); 5559 5560 if (error) 5561 fatal("can't open '%s': %s", target, strerror(error)); 5562 5563 argv++; 5564 argc--; 5565 if (!dump_opt['R']) { 5566 if (argc > 0) { 5567 zopt_objects = argc; 5568 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 5569 for (unsigned i = 0; i < zopt_objects; i++) { 5570 errno = 0; 5571 zopt_object[i] = strtoull(argv[i], NULL, 0); 5572 if (zopt_object[i] == 0 && errno != 0) 5573 fatal("bad number %s: %s", 5574 argv[i], strerror(errno)); 5575 } 5576 } 5577 if (os != NULL) { 5578 dump_dir(os); 5579 } else if (zopt_objects > 0 && !dump_opt['m']) { 5580 dump_dir(spa->spa_meta_objset); 5581 } else { 5582 dump_zpool(spa); 5583 } 5584 } else { 5585 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 5586 flagbits['c'] = ZDB_FLAG_CHECKSUM; 5587 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 5588 flagbits['e'] = ZDB_FLAG_BSWAP; 5589 flagbits['g'] = ZDB_FLAG_GBH; 5590 flagbits['i'] = ZDB_FLAG_INDIRECT; 5591 flagbits['p'] = ZDB_FLAG_PHYS; 5592 flagbits['r'] = ZDB_FLAG_RAW; 5593 5594 for (int i = 0; i < argc; i++) 5595 zdb_read_block(argv[i], spa); 5596 } 5597 5598 if (dump_opt['k']) { 5599 free(checkpoint_pool); 5600 if (!target_is_spa) 5601 free(checkpoint_target); 5602 } 5603 5604 if (os != NULL) 5605 close_objset(os, FTAG); 5606 else 5607 spa_close(spa, FTAG); 5608 5609 fuid_table_destroy(); 5610 5611 dump_debug_buffer(); 5612 5613 libzfs_fini(g_zfs); 5614 kernel_fini(); 5615 5616 return (error); 5617 } 5618