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, 2019 by Delphix. All rights reserved. 25 * Copyright (c) 2014 Integros [integros.com] 26 * Copyright 2017 Nexenta Systems, Inc. 27 * Copyright (c) 2017, 2018 Lawrence Livermore National Security, LLC. 28 * Copyright 2017 RackTop Systems. 29 */ 30 31 #include <stdio.h> 32 #include <unistd.h> 33 #include <stdio_ext.h> 34 #include <stdlib.h> 35 #include <ctype.h> 36 #include <sys/zfs_context.h> 37 #include <sys/spa.h> 38 #include <sys/spa_impl.h> 39 #include <sys/dmu.h> 40 #include <sys/zap.h> 41 #include <sys/fs/zfs.h> 42 #include <sys/zfs_znode.h> 43 #include <sys/zfs_sa.h> 44 #include <sys/sa.h> 45 #include <sys/sa_impl.h> 46 #include <sys/vdev.h> 47 #include <sys/vdev_impl.h> 48 #include <sys/metaslab_impl.h> 49 #include <sys/dmu_objset.h> 50 #include <sys/dsl_dir.h> 51 #include <sys/dsl_dataset.h> 52 #include <sys/dsl_pool.h> 53 #include <sys/dbuf.h> 54 #include <sys/zil.h> 55 #include <sys/zil_impl.h> 56 #include <sys/stat.h> 57 #include <sys/resource.h> 58 #include <sys/dmu_traverse.h> 59 #include <sys/zio_checksum.h> 60 #include <sys/zio_compress.h> 61 #include <sys/zfs_fuid.h> 62 #include <sys/arc.h> 63 #include <sys/ddt.h> 64 #include <sys/zfeature.h> 65 #include <sys/abd.h> 66 #include <sys/blkptr.h> 67 #include <sys/dsl_scan.h> 68 #include <sys/dsl_crypt.h> 69 #include <zfs_comutil.h> 70 #include <libcmdutils.h> 71 #undef verify 72 #include <libzfs.h> 73 74 #include "zdb.h" 75 76 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 77 zio_compress_table[(idx)].ci_name : "UNKNOWN") 78 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 79 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 80 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 81 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 82 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 83 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 84 (idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA ? \ 85 DMU_OT_ZAP_OTHER : \ 86 (idx) == DMU_OTN_UINT64_DATA || (idx) == DMU_OTN_UINT64_METADATA ? \ 87 DMU_OT_UINT64_OTHER : DMU_OT_NUMTYPES) 88 89 extern int reference_tracking_enable; 90 extern boolean_t zfs_recover; 91 extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 92 extern int zfs_vdev_async_read_max_active; 93 extern int aok; 94 extern boolean_t spa_load_verify_dryrun; 95 extern int zfs_btree_verify_intensity; 96 97 static const char cmdname[] = "zdb"; 98 uint8_t dump_opt[256]; 99 100 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 101 102 uint64_t *zopt_object = NULL; 103 static unsigned zopt_objects = 0; 104 libzfs_handle_t *g_zfs; 105 uint64_t max_inflight = 1000; 106 static int leaked_objects = 0; 107 108 static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 109 static void mos_obj_refd(uint64_t); 110 111 /* 112 * These libumem hooks provide a reasonable set of defaults for the allocator's 113 * debugging facilities. 114 */ 115 const char * 116 _umem_debug_init() 117 { 118 return ("default,verbose"); /* $UMEM_DEBUG setting */ 119 } 120 121 const char * 122 _umem_logging_init(void) 123 { 124 return ("fail,contents"); /* $UMEM_LOGGING setting */ 125 } 126 127 static void 128 usage(void) 129 { 130 (void) fprintf(stderr, 131 "Usage:\t%s [-AbcdDFGhikLMPsvX] [-e [-V] [-p <path> ...]] " 132 "[-I <inflight I/Os>]\n" 133 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 134 "\t\t[<poolname> [<object> ...]]\n" 135 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] <dataset> " 136 "[<object> ...]\n" 137 "\t%s -C [-A] [-U <cache>]\n" 138 "\t%s -l [-Aqu] <device>\n" 139 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] " 140 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n" 141 "\t%s -O <dataset> <path>\n" 142 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n" 143 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" 144 "\t%s -E [-A] word0:word1:...:word15\n" 145 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] " 146 "<poolname>\n\n", 147 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, 148 cmdname, cmdname); 149 150 (void) fprintf(stderr, " Dataset name must include at least one " 151 "separator character '/' or '@'\n"); 152 (void) fprintf(stderr, " If dataset name is specified, only that " 153 "dataset is dumped\n"); 154 (void) fprintf(stderr, " If object numbers are specified, only " 155 "those objects are dumped\n\n"); 156 (void) fprintf(stderr, " Options to control amount of output:\n"); 157 (void) fprintf(stderr, " -b block statistics\n"); 158 (void) fprintf(stderr, " -c checksum all metadata (twice for " 159 "all data) blocks\n"); 160 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 161 (void) fprintf(stderr, " -d dataset(s)\n"); 162 (void) fprintf(stderr, " -D dedup statistics\n"); 163 (void) fprintf(stderr, " -E decode and display block from an " 164 "embedded block pointer\n"); 165 (void) fprintf(stderr, " -h pool history\n"); 166 (void) fprintf(stderr, " -i intent logs\n"); 167 (void) fprintf(stderr, " -l read label contents\n"); 168 (void) fprintf(stderr, " -k examine the checkpointed state " 169 "of the pool\n"); 170 (void) fprintf(stderr, " -L disable leak tracking (do not " 171 "load spacemaps)\n"); 172 (void) fprintf(stderr, " -m metaslabs\n"); 173 (void) fprintf(stderr, " -M metaslab groups\n"); 174 (void) fprintf(stderr, " -O perform object lookups by path\n"); 175 (void) fprintf(stderr, " -R read and display block from a " 176 "device\n"); 177 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 178 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 179 (void) fprintf(stderr, " -v verbose (applies to all " 180 "others)\n\n"); 181 (void) fprintf(stderr, " Below options are intended for use " 182 "with other options:\n"); 183 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 184 "panic recovery (-AA) or both (-AAA)\n"); 185 (void) fprintf(stderr, " -e pool is exported/destroyed/" 186 "has altroot/not in a cachefile\n"); 187 (void) fprintf(stderr, " -F attempt automatic rewind within " 188 "safe range of transaction groups\n"); 189 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 190 "exiting\n"); 191 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 192 "specify the maximum number of " 193 "checksumming I/Os [default is 200]\n"); 194 (void) fprintf(stderr, " -o <variable>=<value> set global " 195 "variable to an unsigned 32-bit integer value\n"); 196 (void) fprintf(stderr, " -p <path> -- use one or more with " 197 "-e to specify path to vdev dir\n"); 198 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 199 (void) fprintf(stderr, " -q don't print label contents\n"); 200 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 201 "searching for uberblocks\n"); 202 (void) fprintf(stderr, " -u uberblock\n"); 203 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 204 "cachefile\n"); 205 (void) fprintf(stderr, " -V do verbatim import\n"); 206 (void) fprintf(stderr, " -x <dumpdir> -- " 207 "dump all read blocks into specified directory\n"); 208 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 209 "work with dataset)\n\n"); 210 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 211 "to make only that option verbose\n"); 212 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 213 exit(1); 214 } 215 216 static void 217 dump_debug_buffer() 218 { 219 if (dump_opt['G']) { 220 (void) printf("\n"); 221 zfs_dbgmsg_print("zdb"); 222 } 223 } 224 225 /* 226 * Called for usage errors that are discovered after a call to spa_open(), 227 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 228 */ 229 230 static void 231 fatal(const char *fmt, ...) 232 { 233 va_list ap; 234 235 va_start(ap, fmt); 236 (void) fprintf(stderr, "%s: ", cmdname); 237 (void) vfprintf(stderr, fmt, ap); 238 va_end(ap); 239 (void) fprintf(stderr, "\n"); 240 241 dump_debug_buffer(); 242 243 exit(1); 244 } 245 246 /* ARGSUSED */ 247 static void 248 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 249 { 250 nvlist_t *nv; 251 size_t nvsize = *(uint64_t *)data; 252 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 253 254 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 255 256 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 257 258 umem_free(packed, nvsize); 259 260 dump_nvlist(nv, 8); 261 262 nvlist_free(nv); 263 } 264 265 /* ARGSUSED */ 266 static void 267 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 268 { 269 spa_history_phys_t *shp = data; 270 271 if (shp == NULL) 272 return; 273 274 (void) printf("\t\tpool_create_len = %llu\n", 275 (u_longlong_t)shp->sh_pool_create_len); 276 (void) printf("\t\tphys_max_off = %llu\n", 277 (u_longlong_t)shp->sh_phys_max_off); 278 (void) printf("\t\tbof = %llu\n", 279 (u_longlong_t)shp->sh_bof); 280 (void) printf("\t\teof = %llu\n", 281 (u_longlong_t)shp->sh_eof); 282 (void) printf("\t\trecords_lost = %llu\n", 283 (u_longlong_t)shp->sh_records_lost); 284 } 285 286 static void 287 zdb_nicenum(uint64_t num, char *buf, size_t buflen) 288 { 289 if (dump_opt['P']) 290 (void) snprintf(buf, buflen, "%llu", (longlong_t)num); 291 else 292 nicenum(num, buf, sizeof (buf)); 293 } 294 295 static const char histo_stars[] = "****************************************"; 296 static const uint64_t histo_width = sizeof (histo_stars) - 1; 297 298 static void 299 dump_histogram(const uint64_t *histo, int size, int offset) 300 { 301 int i; 302 int minidx = size - 1; 303 int maxidx = 0; 304 uint64_t max = 0; 305 306 for (i = 0; i < size; i++) { 307 if (histo[i] > max) 308 max = histo[i]; 309 if (histo[i] > 0 && i > maxidx) 310 maxidx = i; 311 if (histo[i] > 0 && i < minidx) 312 minidx = i; 313 } 314 315 if (max < histo_width) 316 max = histo_width; 317 318 for (i = minidx; i <= maxidx; i++) { 319 (void) printf("\t\t\t%3u: %6llu %s\n", 320 i + offset, (u_longlong_t)histo[i], 321 &histo_stars[(max - histo[i]) * histo_width / max]); 322 } 323 } 324 325 static void 326 dump_zap_stats(objset_t *os, uint64_t object) 327 { 328 int error; 329 zap_stats_t zs; 330 331 error = zap_get_stats(os, object, &zs); 332 if (error) 333 return; 334 335 if (zs.zs_ptrtbl_len == 0) { 336 ASSERT(zs.zs_num_blocks == 1); 337 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 338 (u_longlong_t)zs.zs_blocksize, 339 (u_longlong_t)zs.zs_num_entries); 340 return; 341 } 342 343 (void) printf("\tFat ZAP stats:\n"); 344 345 (void) printf("\t\tPointer table:\n"); 346 (void) printf("\t\t\t%llu elements\n", 347 (u_longlong_t)zs.zs_ptrtbl_len); 348 (void) printf("\t\t\tzt_blk: %llu\n", 349 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 350 (void) printf("\t\t\tzt_numblks: %llu\n", 351 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 352 (void) printf("\t\t\tzt_shift: %llu\n", 353 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 354 (void) printf("\t\t\tzt_blks_copied: %llu\n", 355 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 356 (void) printf("\t\t\tzt_nextblk: %llu\n", 357 (u_longlong_t)zs.zs_ptrtbl_nextblk); 358 359 (void) printf("\t\tZAP entries: %llu\n", 360 (u_longlong_t)zs.zs_num_entries); 361 (void) printf("\t\tLeaf blocks: %llu\n", 362 (u_longlong_t)zs.zs_num_leafs); 363 (void) printf("\t\tTotal blocks: %llu\n", 364 (u_longlong_t)zs.zs_num_blocks); 365 (void) printf("\t\tzap_block_type: 0x%llx\n", 366 (u_longlong_t)zs.zs_block_type); 367 (void) printf("\t\tzap_magic: 0x%llx\n", 368 (u_longlong_t)zs.zs_magic); 369 (void) printf("\t\tzap_salt: 0x%llx\n", 370 (u_longlong_t)zs.zs_salt); 371 372 (void) printf("\t\tLeafs with 2^n pointers:\n"); 373 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 374 375 (void) printf("\t\tBlocks with n*5 entries:\n"); 376 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 377 378 (void) printf("\t\tBlocks n/10 full:\n"); 379 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 380 381 (void) printf("\t\tEntries with n chunks:\n"); 382 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 383 384 (void) printf("\t\tBuckets with n entries:\n"); 385 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 386 } 387 388 /*ARGSUSED*/ 389 static void 390 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 391 { 392 } 393 394 /*ARGSUSED*/ 395 static void 396 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 397 { 398 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 399 } 400 401 /*ARGSUSED*/ 402 static void 403 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 404 { 405 } 406 407 /*ARGSUSED*/ 408 static void 409 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 410 { 411 } 412 413 /*ARGSUSED*/ 414 static void 415 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 416 { 417 zap_cursor_t zc; 418 zap_attribute_t attr; 419 void *prop; 420 unsigned i; 421 422 dump_zap_stats(os, object); 423 (void) printf("\n"); 424 425 for (zap_cursor_init(&zc, os, object); 426 zap_cursor_retrieve(&zc, &attr) == 0; 427 zap_cursor_advance(&zc)) { 428 (void) printf("\t\t%s = ", attr.za_name); 429 if (attr.za_num_integers == 0) { 430 (void) printf("\n"); 431 continue; 432 } 433 prop = umem_zalloc(attr.za_num_integers * 434 attr.za_integer_length, UMEM_NOFAIL); 435 (void) zap_lookup(os, object, attr.za_name, 436 attr.za_integer_length, attr.za_num_integers, prop); 437 if (attr.za_integer_length == 1) { 438 if (strcmp(attr.za_name, 439 DSL_CRYPTO_KEY_MASTER_KEY) == 0 || 440 strcmp(attr.za_name, 441 DSL_CRYPTO_KEY_HMAC_KEY) == 0 || 442 strcmp(attr.za_name, DSL_CRYPTO_KEY_IV) == 0 || 443 strcmp(attr.za_name, DSL_CRYPTO_KEY_MAC) == 0 || 444 strcmp(attr.za_name, DMU_POOL_CHECKSUM_SALT) == 0) { 445 uint8_t *u8 = prop; 446 447 for (i = 0; i < attr.za_num_integers; i++) { 448 (void) printf("%02x", u8[i]); 449 } 450 } else { 451 (void) printf("%s", (char *)prop); 452 } 453 } else { 454 for (i = 0; i < attr.za_num_integers; i++) { 455 switch (attr.za_integer_length) { 456 case 2: 457 (void) printf("%u ", 458 ((uint16_t *)prop)[i]); 459 break; 460 case 4: 461 (void) printf("%u ", 462 ((uint32_t *)prop)[i]); 463 break; 464 case 8: 465 (void) printf("%lld ", 466 (u_longlong_t)((int64_t *)prop)[i]); 467 break; 468 } 469 } 470 } 471 (void) printf("\n"); 472 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 473 } 474 zap_cursor_fini(&zc); 475 } 476 477 static void 478 dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 479 { 480 bpobj_phys_t *bpop = data; 481 char bytes[32], comp[32], uncomp[32]; 482 483 /* make sure the output won't get truncated */ 484 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 485 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 486 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 487 488 if (bpop == NULL) 489 return; 490 491 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes)); 492 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp)); 493 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp)); 494 495 (void) printf("\t\tnum_blkptrs = %llu\n", 496 (u_longlong_t)bpop->bpo_num_blkptrs); 497 (void) printf("\t\tbytes = %s\n", bytes); 498 if (size >= BPOBJ_SIZE_V1) { 499 (void) printf("\t\tcomp = %s\n", comp); 500 (void) printf("\t\tuncomp = %s\n", uncomp); 501 } 502 if (size >= sizeof (*bpop)) { 503 (void) printf("\t\tsubobjs = %llu\n", 504 (u_longlong_t)bpop->bpo_subobjs); 505 (void) printf("\t\tnum_subobjs = %llu\n", 506 (u_longlong_t)bpop->bpo_num_subobjs); 507 } 508 509 if (dump_opt['d'] < 5) 510 return; 511 512 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 513 char blkbuf[BP_SPRINTF_LEN]; 514 blkptr_t bp; 515 516 int err = dmu_read(os, object, 517 i * sizeof (bp), sizeof (bp), &bp, 0); 518 if (err != 0) { 519 (void) printf("got error %u from dmu_read\n", err); 520 break; 521 } 522 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 523 (void) printf("\t%s\n", blkbuf); 524 } 525 } 526 527 /* ARGSUSED */ 528 static void 529 dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 530 { 531 dmu_object_info_t doi; 532 533 VERIFY0(dmu_object_info(os, object, &doi)); 534 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 535 536 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 537 if (err != 0) { 538 (void) printf("got error %u from dmu_read\n", err); 539 kmem_free(subobjs, doi.doi_max_offset); 540 return; 541 } 542 543 int64_t last_nonzero = -1; 544 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 545 if (subobjs[i] != 0) 546 last_nonzero = i; 547 } 548 549 for (int64_t i = 0; i <= last_nonzero; i++) { 550 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 551 } 552 kmem_free(subobjs, doi.doi_max_offset); 553 } 554 555 /*ARGSUSED*/ 556 static void 557 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 558 { 559 dump_zap_stats(os, object); 560 /* contents are printed elsewhere, properly decoded */ 561 } 562 563 /*ARGSUSED*/ 564 static void 565 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 566 { 567 zap_cursor_t zc; 568 zap_attribute_t attr; 569 570 dump_zap_stats(os, object); 571 (void) printf("\n"); 572 573 for (zap_cursor_init(&zc, os, object); 574 zap_cursor_retrieve(&zc, &attr) == 0; 575 zap_cursor_advance(&zc)) { 576 (void) printf("\t\t%s = ", attr.za_name); 577 if (attr.za_num_integers == 0) { 578 (void) printf("\n"); 579 continue; 580 } 581 (void) printf(" %llx : [%d:%d:%d]\n", 582 (u_longlong_t)attr.za_first_integer, 583 (int)ATTR_LENGTH(attr.za_first_integer), 584 (int)ATTR_BSWAP(attr.za_first_integer), 585 (int)ATTR_NUM(attr.za_first_integer)); 586 } 587 zap_cursor_fini(&zc); 588 } 589 590 /*ARGSUSED*/ 591 static void 592 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 593 { 594 zap_cursor_t zc; 595 zap_attribute_t attr; 596 uint16_t *layout_attrs; 597 unsigned i; 598 599 dump_zap_stats(os, object); 600 (void) printf("\n"); 601 602 for (zap_cursor_init(&zc, os, object); 603 zap_cursor_retrieve(&zc, &attr) == 0; 604 zap_cursor_advance(&zc)) { 605 (void) printf("\t\t%s = [", attr.za_name); 606 if (attr.za_num_integers == 0) { 607 (void) printf("\n"); 608 continue; 609 } 610 611 VERIFY(attr.za_integer_length == 2); 612 layout_attrs = umem_zalloc(attr.za_num_integers * 613 attr.za_integer_length, UMEM_NOFAIL); 614 615 VERIFY(zap_lookup(os, object, attr.za_name, 616 attr.za_integer_length, 617 attr.za_num_integers, layout_attrs) == 0); 618 619 for (i = 0; i != attr.za_num_integers; i++) 620 (void) printf(" %d ", (int)layout_attrs[i]); 621 (void) printf("]\n"); 622 umem_free(layout_attrs, 623 attr.za_num_integers * attr.za_integer_length); 624 } 625 zap_cursor_fini(&zc); 626 } 627 628 /*ARGSUSED*/ 629 static void 630 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 631 { 632 zap_cursor_t zc; 633 zap_attribute_t attr; 634 const char *typenames[] = { 635 /* 0 */ "not specified", 636 /* 1 */ "FIFO", 637 /* 2 */ "Character Device", 638 /* 3 */ "3 (invalid)", 639 /* 4 */ "Directory", 640 /* 5 */ "5 (invalid)", 641 /* 6 */ "Block Device", 642 /* 7 */ "7 (invalid)", 643 /* 8 */ "Regular File", 644 /* 9 */ "9 (invalid)", 645 /* 10 */ "Symbolic Link", 646 /* 11 */ "11 (invalid)", 647 /* 12 */ "Socket", 648 /* 13 */ "Door", 649 /* 14 */ "Event Port", 650 /* 15 */ "15 (invalid)", 651 }; 652 653 dump_zap_stats(os, object); 654 (void) printf("\n"); 655 656 for (zap_cursor_init(&zc, os, object); 657 zap_cursor_retrieve(&zc, &attr) == 0; 658 zap_cursor_advance(&zc)) { 659 (void) printf("\t\t%s = %lld (type: %s)\n", 660 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 661 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 662 } 663 zap_cursor_fini(&zc); 664 } 665 666 static int 667 get_dtl_refcount(vdev_t *vd) 668 { 669 int refcount = 0; 670 671 if (vd->vdev_ops->vdev_op_leaf) { 672 space_map_t *sm = vd->vdev_dtl_sm; 673 674 if (sm != NULL && 675 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 676 return (1); 677 return (0); 678 } 679 680 for (unsigned c = 0; c < vd->vdev_children; c++) 681 refcount += get_dtl_refcount(vd->vdev_child[c]); 682 return (refcount); 683 } 684 685 static int 686 get_metaslab_refcount(vdev_t *vd) 687 { 688 int refcount = 0; 689 690 if (vd->vdev_top == vd) { 691 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 692 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 693 694 if (sm != NULL && 695 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 696 refcount++; 697 } 698 } 699 for (unsigned c = 0; c < vd->vdev_children; c++) 700 refcount += get_metaslab_refcount(vd->vdev_child[c]); 701 702 return (refcount); 703 } 704 705 static int 706 get_obsolete_refcount(vdev_t *vd) 707 { 708 int refcount = 0; 709 710 uint64_t obsolete_sm_obj = vdev_obsolete_sm_object(vd); 711 if (vd->vdev_top == vd && obsolete_sm_obj != 0) { 712 dmu_object_info_t doi; 713 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset, 714 obsolete_sm_obj, &doi)); 715 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 716 refcount++; 717 } 718 } else { 719 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL); 720 ASSERT3U(obsolete_sm_obj, ==, 0); 721 } 722 for (unsigned c = 0; c < vd->vdev_children; c++) { 723 refcount += get_obsolete_refcount(vd->vdev_child[c]); 724 } 725 726 return (refcount); 727 } 728 729 static int 730 get_prev_obsolete_spacemap_refcount(spa_t *spa) 731 { 732 uint64_t prev_obj = 733 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object; 734 if (prev_obj != 0) { 735 dmu_object_info_t doi; 736 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi)); 737 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 738 return (1); 739 } 740 } 741 return (0); 742 } 743 744 static int 745 get_checkpoint_refcount(vdev_t *vd) 746 { 747 int refcount = 0; 748 749 if (vd->vdev_top == vd && vd->vdev_top_zap != 0 && 750 zap_contains(spa_meta_objset(vd->vdev_spa), 751 vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0) 752 refcount++; 753 754 for (uint64_t c = 0; c < vd->vdev_children; c++) 755 refcount += get_checkpoint_refcount(vd->vdev_child[c]); 756 757 return (refcount); 758 } 759 760 static int 761 get_log_spacemap_refcount(spa_t *spa) 762 { 763 return (avl_numnodes(&spa->spa_sm_logs_by_txg)); 764 } 765 766 static int 767 verify_spacemap_refcounts(spa_t *spa) 768 { 769 uint64_t expected_refcount = 0; 770 uint64_t actual_refcount; 771 772 (void) feature_get_refcount(spa, 773 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 774 &expected_refcount); 775 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 776 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 777 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev); 778 actual_refcount += get_prev_obsolete_spacemap_refcount(spa); 779 actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev); 780 actual_refcount += get_log_spacemap_refcount(spa); 781 782 if (expected_refcount != actual_refcount) { 783 (void) printf("space map refcount mismatch: expected %lld != " 784 "actual %lld\n", 785 (longlong_t)expected_refcount, 786 (longlong_t)actual_refcount); 787 return (2); 788 } 789 return (0); 790 } 791 792 static void 793 dump_spacemap(objset_t *os, space_map_t *sm) 794 { 795 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 796 "INVALID", "INVALID", "INVALID", "INVALID" }; 797 798 if (sm == NULL) 799 return; 800 801 (void) printf("space map object %llu:\n", 802 (longlong_t)sm->sm_object); 803 (void) printf(" smp_length = 0x%llx\n", 804 (longlong_t)sm->sm_phys->smp_length); 805 (void) printf(" smp_alloc = 0x%llx\n", 806 (longlong_t)sm->sm_phys->smp_alloc); 807 808 if (dump_opt['d'] < 6 && dump_opt['m'] < 4) 809 return; 810 811 /* 812 * Print out the freelist entries in both encoded and decoded form. 813 */ 814 uint8_t mapshift = sm->sm_shift; 815 int64_t alloc = 0; 816 uint64_t word, entry_id = 0; 817 for (uint64_t offset = 0; offset < space_map_length(sm); 818 offset += sizeof (word)) { 819 820 VERIFY0(dmu_read(os, space_map_object(sm), offset, 821 sizeof (word), &word, DMU_READ_PREFETCH)); 822 823 if (sm_entry_is_debug(word)) { 824 (void) printf("\t [%6llu] %s: txg %llu pass %llu\n", 825 (u_longlong_t)entry_id, 826 ddata[SM_DEBUG_ACTION_DECODE(word)], 827 (u_longlong_t)SM_DEBUG_TXG_DECODE(word), 828 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(word)); 829 entry_id++; 830 continue; 831 } 832 833 uint8_t words; 834 char entry_type; 835 uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID; 836 837 if (sm_entry_is_single_word(word)) { 838 entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ? 839 'A' : 'F'; 840 entry_off = (SM_OFFSET_DECODE(word) << mapshift) + 841 sm->sm_start; 842 entry_run = SM_RUN_DECODE(word) << mapshift; 843 words = 1; 844 } else { 845 /* it is a two-word entry so we read another word */ 846 ASSERT(sm_entry_is_double_word(word)); 847 848 uint64_t extra_word; 849 offset += sizeof (extra_word); 850 VERIFY0(dmu_read(os, space_map_object(sm), offset, 851 sizeof (extra_word), &extra_word, 852 DMU_READ_PREFETCH)); 853 854 ASSERT3U(offset, <=, space_map_length(sm)); 855 856 entry_run = SM2_RUN_DECODE(word) << mapshift; 857 entry_vdev = SM2_VDEV_DECODE(word); 858 entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ? 859 'A' : 'F'; 860 entry_off = (SM2_OFFSET_DECODE(extra_word) << 861 mapshift) + sm->sm_start; 862 words = 2; 863 } 864 865 (void) printf("\t [%6llu] %c range:" 866 " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n", 867 (u_longlong_t)entry_id, 868 entry_type, (u_longlong_t)entry_off, 869 (u_longlong_t)(entry_off + entry_run), 870 (u_longlong_t)entry_run, 871 (u_longlong_t)entry_vdev, words); 872 873 if (entry_type == 'A') 874 alloc += entry_run; 875 else 876 alloc -= entry_run; 877 entry_id++; 878 } 879 if (alloc != space_map_allocated(sm)) { 880 (void) printf("space_map_object alloc (%lld) INCONSISTENT " 881 "with space map summary (%lld)\n", 882 (longlong_t)space_map_allocated(sm), (longlong_t)alloc); 883 } 884 } 885 886 static void 887 dump_metaslab_stats(metaslab_t *msp) 888 { 889 char maxbuf[32]; 890 range_tree_t *rt = msp->ms_allocatable; 891 zfs_btree_t *t = &msp->ms_allocatable_by_size; 892 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 893 894 /* max sure nicenum has enough space */ 895 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ); 896 897 zdb_nicenum(metaslab_largest_allocatable(msp), maxbuf, sizeof (maxbuf)); 898 899 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 900 "segments", zfs_btree_numnodes(t), "maxsize", maxbuf, 901 "freepct", free_pct); 902 (void) printf("\tIn-memory histogram:\n"); 903 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 904 } 905 906 static void 907 dump_metaslab(metaslab_t *msp) 908 { 909 vdev_t *vd = msp->ms_group->mg_vd; 910 spa_t *spa = vd->vdev_spa; 911 space_map_t *sm = msp->ms_sm; 912 char freebuf[32]; 913 914 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf, 915 sizeof (freebuf)); 916 917 (void) printf( 918 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 919 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 920 (u_longlong_t)space_map_object(sm), freebuf); 921 922 if (dump_opt['m'] > 2 && !dump_opt['L']) { 923 mutex_enter(&msp->ms_lock); 924 VERIFY0(metaslab_load(msp)); 925 range_tree_stat_verify(msp->ms_allocatable); 926 dump_metaslab_stats(msp); 927 metaslab_unload(msp); 928 mutex_exit(&msp->ms_lock); 929 } 930 931 if (dump_opt['m'] > 1 && sm != NULL && 932 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 933 /* 934 * The space map histogram represents free space in chunks 935 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 936 */ 937 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 938 (u_longlong_t)msp->ms_fragmentation); 939 dump_histogram(sm->sm_phys->smp_histogram, 940 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 941 } 942 943 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 944 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 945 946 if (spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) { 947 (void) printf("\tFlush data:\n\tunflushed txg=%llu\n\n", 948 (u_longlong_t)metaslab_unflushed_txg(msp)); 949 } 950 } 951 952 static void 953 print_vdev_metaslab_header(vdev_t *vd) 954 { 955 vdev_alloc_bias_t alloc_bias = vd->vdev_alloc_bias; 956 const char *bias_str = ""; 957 958 if (alloc_bias == VDEV_BIAS_LOG || vd->vdev_islog) { 959 bias_str = VDEV_ALLOC_BIAS_LOG; 960 } else if (alloc_bias == VDEV_BIAS_SPECIAL) { 961 bias_str = VDEV_ALLOC_BIAS_SPECIAL; 962 } else if (alloc_bias == VDEV_BIAS_DEDUP) { 963 bias_str = VDEV_ALLOC_BIAS_DEDUP; 964 } 965 966 uint64_t ms_flush_data_obj = 0; 967 if (vd->vdev_top_zap != 0) { 968 int error = zap_lookup(spa_meta_objset(vd->vdev_spa), 969 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, 970 sizeof (uint64_t), 1, &ms_flush_data_obj); 971 if (error != ENOENT) { 972 ASSERT0(error); 973 } 974 } 975 976 (void) printf("\tvdev %10llu %s", 977 (u_longlong_t)vd->vdev_id, bias_str); 978 979 if (ms_flush_data_obj != 0) { 980 (void) printf(" ms_unflushed_phys object %llu", 981 (u_longlong_t)ms_flush_data_obj); 982 } 983 984 (void) printf("\n\t%-10s%5llu %-19s %-15s %-12s\n", 985 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 986 "offset", "spacemap", "free"); 987 (void) printf("\t%15s %19s %15s %12s\n", 988 "---------------", "-------------------", 989 "---------------", "------------"); 990 } 991 992 static void 993 dump_metaslab_groups(spa_t *spa) 994 { 995 vdev_t *rvd = spa->spa_root_vdev; 996 metaslab_class_t *mc = spa_normal_class(spa); 997 uint64_t fragmentation; 998 999 metaslab_class_histogram_verify(mc); 1000 1001 for (unsigned c = 0; c < rvd->vdev_children; c++) { 1002 vdev_t *tvd = rvd->vdev_child[c]; 1003 metaslab_group_t *mg = tvd->vdev_mg; 1004 1005 if (mg == NULL || mg->mg_class != mc) 1006 continue; 1007 1008 metaslab_group_histogram_verify(mg); 1009 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 1010 1011 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 1012 "fragmentation", 1013 (u_longlong_t)tvd->vdev_id, 1014 (u_longlong_t)tvd->vdev_ms_count); 1015 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 1016 (void) printf("%3s\n", "-"); 1017 } else { 1018 (void) printf("%3llu%%\n", 1019 (u_longlong_t)mg->mg_fragmentation); 1020 } 1021 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1022 } 1023 1024 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 1025 fragmentation = metaslab_class_fragmentation(mc); 1026 if (fragmentation == ZFS_FRAG_INVALID) 1027 (void) printf("\t%3s\n", "-"); 1028 else 1029 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 1030 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1031 } 1032 1033 static void 1034 print_vdev_indirect(vdev_t *vd) 1035 { 1036 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 1037 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 1038 vdev_indirect_births_t *vib = vd->vdev_indirect_births; 1039 1040 if (vim == NULL) { 1041 ASSERT3P(vib, ==, NULL); 1042 return; 1043 } 1044 1045 ASSERT3U(vdev_indirect_mapping_object(vim), ==, 1046 vic->vic_mapping_object); 1047 ASSERT3U(vdev_indirect_births_object(vib), ==, 1048 vic->vic_births_object); 1049 1050 (void) printf("indirect births obj %llu:\n", 1051 (longlong_t)vic->vic_births_object); 1052 (void) printf(" vib_count = %llu\n", 1053 (longlong_t)vdev_indirect_births_count(vib)); 1054 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) { 1055 vdev_indirect_birth_entry_phys_t *cur_vibe = 1056 &vib->vib_entries[i]; 1057 (void) printf("\toffset %llx -> txg %llu\n", 1058 (longlong_t)cur_vibe->vibe_offset, 1059 (longlong_t)cur_vibe->vibe_phys_birth_txg); 1060 } 1061 (void) printf("\n"); 1062 1063 (void) printf("indirect mapping obj %llu:\n", 1064 (longlong_t)vic->vic_mapping_object); 1065 (void) printf(" vim_max_offset = 0x%llx\n", 1066 (longlong_t)vdev_indirect_mapping_max_offset(vim)); 1067 (void) printf(" vim_bytes_mapped = 0x%llx\n", 1068 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim)); 1069 (void) printf(" vim_count = %llu\n", 1070 (longlong_t)vdev_indirect_mapping_num_entries(vim)); 1071 1072 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3) 1073 return; 1074 1075 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim); 1076 1077 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 1078 vdev_indirect_mapping_entry_phys_t *vimep = 1079 &vim->vim_entries[i]; 1080 (void) printf("\t<%llx:%llx:%llx> -> " 1081 "<%llx:%llx:%llx> (%x obsolete)\n", 1082 (longlong_t)vd->vdev_id, 1083 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 1084 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1085 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst), 1086 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst), 1087 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1088 counts[i]); 1089 } 1090 (void) printf("\n"); 1091 1092 uint64_t obsolete_sm_object = vdev_obsolete_sm_object(vd); 1093 if (obsolete_sm_object != 0) { 1094 objset_t *mos = vd->vdev_spa->spa_meta_objset; 1095 (void) printf("obsolete space map object %llu:\n", 1096 (u_longlong_t)obsolete_sm_object); 1097 ASSERT(vd->vdev_obsolete_sm != NULL); 1098 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==, 1099 obsolete_sm_object); 1100 dump_spacemap(mos, vd->vdev_obsolete_sm); 1101 (void) printf("\n"); 1102 } 1103 } 1104 1105 static void 1106 dump_metaslabs(spa_t *spa) 1107 { 1108 vdev_t *vd, *rvd = spa->spa_root_vdev; 1109 uint64_t m, c = 0, children = rvd->vdev_children; 1110 1111 (void) printf("\nMetaslabs:\n"); 1112 1113 if (!dump_opt['d'] && zopt_objects > 0) { 1114 c = zopt_object[0]; 1115 1116 if (c >= children) 1117 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 1118 1119 if (zopt_objects > 1) { 1120 vd = rvd->vdev_child[c]; 1121 print_vdev_metaslab_header(vd); 1122 1123 for (m = 1; m < zopt_objects; m++) { 1124 if (zopt_object[m] < vd->vdev_ms_count) 1125 dump_metaslab( 1126 vd->vdev_ms[zopt_object[m]]); 1127 else 1128 (void) fprintf(stderr, "bad metaslab " 1129 "number %llu\n", 1130 (u_longlong_t)zopt_object[m]); 1131 } 1132 (void) printf("\n"); 1133 return; 1134 } 1135 children = c + 1; 1136 } 1137 for (; c < children; c++) { 1138 vd = rvd->vdev_child[c]; 1139 print_vdev_metaslab_header(vd); 1140 1141 print_vdev_indirect(vd); 1142 1143 for (m = 0; m < vd->vdev_ms_count; m++) 1144 dump_metaslab(vd->vdev_ms[m]); 1145 (void) printf("\n"); 1146 } 1147 } 1148 1149 static void 1150 dump_log_spacemaps(spa_t *spa) 1151 { 1152 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 1153 return; 1154 1155 (void) printf("\nLog Space Maps in Pool:\n"); 1156 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 1157 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) { 1158 space_map_t *sm = NULL; 1159 VERIFY0(space_map_open(&sm, spa_meta_objset(spa), 1160 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT)); 1161 1162 (void) printf("Log Spacemap object %llu txg %llu\n", 1163 (u_longlong_t)sls->sls_sm_obj, (u_longlong_t)sls->sls_txg); 1164 dump_spacemap(spa->spa_meta_objset, sm); 1165 space_map_close(sm); 1166 } 1167 (void) printf("\n"); 1168 } 1169 1170 static void 1171 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 1172 { 1173 const ddt_phys_t *ddp = dde->dde_phys; 1174 const ddt_key_t *ddk = &dde->dde_key; 1175 const char *types[4] = { "ditto", "single", "double", "triple" }; 1176 char blkbuf[BP_SPRINTF_LEN]; 1177 blkptr_t blk; 1178 1179 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 1180 if (ddp->ddp_phys_birth == 0) 1181 continue; 1182 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 1183 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 1184 (void) printf("index %llx refcnt %llu %s %s\n", 1185 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 1186 types[p], blkbuf); 1187 } 1188 } 1189 1190 static void 1191 dump_dedup_ratio(const ddt_stat_t *dds) 1192 { 1193 double rL, rP, rD, D, dedup, compress, copies; 1194 1195 if (dds->dds_blocks == 0) 1196 return; 1197 1198 rL = (double)dds->dds_ref_lsize; 1199 rP = (double)dds->dds_ref_psize; 1200 rD = (double)dds->dds_ref_dsize; 1201 D = (double)dds->dds_dsize; 1202 1203 dedup = rD / D; 1204 compress = rL / rP; 1205 copies = rD / rP; 1206 1207 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 1208 "dedup * compress / copies = %.2f\n\n", 1209 dedup, compress, copies, dedup * compress / copies); 1210 } 1211 1212 static void 1213 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 1214 { 1215 char name[DDT_NAMELEN]; 1216 ddt_entry_t dde; 1217 uint64_t walk = 0; 1218 dmu_object_info_t doi; 1219 uint64_t count, dspace, mspace; 1220 int error; 1221 1222 error = ddt_object_info(ddt, type, class, &doi); 1223 1224 if (error == ENOENT) 1225 return; 1226 ASSERT(error == 0); 1227 1228 if ((count = ddt_object_count(ddt, type, class)) == 0) 1229 return; 1230 1231 dspace = doi.doi_physical_blocks_512 << 9; 1232 mspace = doi.doi_fill_count * doi.doi_data_block_size; 1233 1234 ddt_object_name(ddt, type, class, name); 1235 1236 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 1237 name, 1238 (u_longlong_t)count, 1239 (u_longlong_t)(dspace / count), 1240 (u_longlong_t)(mspace / count)); 1241 1242 if (dump_opt['D'] < 3) 1243 return; 1244 1245 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 1246 1247 if (dump_opt['D'] < 4) 1248 return; 1249 1250 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 1251 return; 1252 1253 (void) printf("%s contents:\n\n", name); 1254 1255 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 1256 dump_dde(ddt, &dde, walk); 1257 1258 ASSERT3U(error, ==, ENOENT); 1259 1260 (void) printf("\n"); 1261 } 1262 1263 static void 1264 dump_all_ddts(spa_t *spa) 1265 { 1266 ddt_histogram_t ddh_total; 1267 ddt_stat_t dds_total; 1268 1269 bzero(&ddh_total, sizeof (ddh_total)); 1270 bzero(&dds_total, sizeof (dds_total)); 1271 1272 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 1273 ddt_t *ddt = spa->spa_ddt[c]; 1274 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 1275 for (enum ddt_class class = 0; class < DDT_CLASSES; 1276 class++) { 1277 dump_ddt(ddt, type, class); 1278 } 1279 } 1280 } 1281 1282 ddt_get_dedup_stats(spa, &dds_total); 1283 1284 if (dds_total.dds_blocks == 0) { 1285 (void) printf("All DDTs are empty\n"); 1286 return; 1287 } 1288 1289 (void) printf("\n"); 1290 1291 if (dump_opt['D'] > 1) { 1292 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 1293 ddt_get_dedup_histogram(spa, &ddh_total); 1294 zpool_dump_ddt(&dds_total, &ddh_total); 1295 } 1296 1297 dump_dedup_ratio(&dds_total); 1298 } 1299 1300 static void 1301 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1302 { 1303 char *prefix = arg; 1304 1305 (void) printf("%s [%llu,%llu) length %llu\n", 1306 prefix, 1307 (u_longlong_t)start, 1308 (u_longlong_t)(start + size), 1309 (u_longlong_t)(size)); 1310 } 1311 1312 static void 1313 dump_dtl(vdev_t *vd, int indent) 1314 { 1315 spa_t *spa = vd->vdev_spa; 1316 boolean_t required; 1317 const char *name[DTL_TYPES] = { "missing", "partial", "scrub", 1318 "outage" }; 1319 char prefix[256]; 1320 1321 spa_vdev_state_enter(spa, SCL_NONE); 1322 required = vdev_dtl_required(vd); 1323 (void) spa_vdev_state_exit(spa, NULL, 0); 1324 1325 if (indent == 0) 1326 (void) printf("\nDirty time logs:\n\n"); 1327 1328 (void) printf("\t%*s%s [%s]\n", indent, "", 1329 vd->vdev_path ? vd->vdev_path : 1330 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1331 required ? "DTL-required" : "DTL-expendable"); 1332 1333 for (int t = 0; t < DTL_TYPES; t++) { 1334 range_tree_t *rt = vd->vdev_dtl[t]; 1335 if (range_tree_space(rt) == 0) 1336 continue; 1337 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1338 indent + 2, "", name[t]); 1339 range_tree_walk(rt, dump_dtl_seg, prefix); 1340 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1341 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1342 } 1343 1344 for (unsigned c = 0; c < vd->vdev_children; c++) 1345 dump_dtl(vd->vdev_child[c], indent + 4); 1346 } 1347 1348 static void 1349 dump_history(spa_t *spa) 1350 { 1351 nvlist_t **events = NULL; 1352 uint64_t resid, len, off = 0; 1353 uint_t num = 0; 1354 int error; 1355 time_t tsec; 1356 struct tm t; 1357 char tbuf[30]; 1358 char internalstr[MAXPATHLEN]; 1359 1360 char *buf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 1361 do { 1362 len = SPA_MAXBLOCKSIZE; 1363 1364 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1365 (void) fprintf(stderr, "Unable to read history: " 1366 "error %d\n", error); 1367 umem_free(buf, SPA_MAXBLOCKSIZE); 1368 return; 1369 } 1370 1371 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1372 break; 1373 1374 off -= resid; 1375 } while (len != 0); 1376 umem_free(buf, SPA_MAXBLOCKSIZE); 1377 1378 (void) printf("\nHistory:\n"); 1379 for (unsigned i = 0; i < num; i++) { 1380 uint64_t time, txg, ievent; 1381 char *cmd, *intstr; 1382 boolean_t printed = B_FALSE; 1383 1384 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1385 &time) != 0) 1386 goto next; 1387 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1388 &cmd) != 0) { 1389 if (nvlist_lookup_uint64(events[i], 1390 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1391 goto next; 1392 verify(nvlist_lookup_uint64(events[i], 1393 ZPOOL_HIST_TXG, &txg) == 0); 1394 verify(nvlist_lookup_string(events[i], 1395 ZPOOL_HIST_INT_STR, &intstr) == 0); 1396 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1397 goto next; 1398 1399 (void) snprintf(internalstr, 1400 sizeof (internalstr), 1401 "[internal %s txg:%ju] %s", 1402 zfs_history_event_names[ievent], (uintmax_t)txg, 1403 intstr); 1404 cmd = internalstr; 1405 } 1406 tsec = time; 1407 (void) localtime_r(&tsec, &t); 1408 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1409 (void) printf("%s %s\n", tbuf, cmd); 1410 printed = B_TRUE; 1411 1412 next: 1413 if (dump_opt['h'] > 1) { 1414 if (!printed) 1415 (void) printf("unrecognized record:\n"); 1416 dump_nvlist(events[i], 2); 1417 } 1418 } 1419 } 1420 1421 /*ARGSUSED*/ 1422 static void 1423 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1424 { 1425 } 1426 1427 static uint64_t 1428 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1429 const zbookmark_phys_t *zb) 1430 { 1431 if (dnp == NULL) { 1432 ASSERT(zb->zb_level < 0); 1433 if (zb->zb_object == 0) 1434 return (zb->zb_blkid); 1435 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1436 } 1437 1438 ASSERT(zb->zb_level >= 0); 1439 1440 return ((zb->zb_blkid << 1441 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1442 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1443 } 1444 1445 static void 1446 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1447 { 1448 const dva_t *dva = bp->blk_dva; 1449 unsigned int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1450 1451 if (dump_opt['b'] >= 6) { 1452 snprintf_blkptr(blkbuf, buflen, bp); 1453 return; 1454 } 1455 1456 if (BP_IS_EMBEDDED(bp)) { 1457 (void) sprintf(blkbuf, 1458 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1459 (int)BPE_GET_ETYPE(bp), 1460 (u_longlong_t)BPE_GET_LSIZE(bp), 1461 (u_longlong_t)BPE_GET_PSIZE(bp), 1462 (u_longlong_t)bp->blk_birth); 1463 return; 1464 } 1465 1466 blkbuf[0] = '\0'; 1467 for (unsigned int i = 0; i < ndvas; i++) 1468 (void) snprintf(blkbuf + strlen(blkbuf), 1469 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1470 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1471 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1472 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1473 1474 if (BP_IS_HOLE(bp)) { 1475 (void) snprintf(blkbuf + strlen(blkbuf), 1476 buflen - strlen(blkbuf), 1477 "%llxL B=%llu", 1478 (u_longlong_t)BP_GET_LSIZE(bp), 1479 (u_longlong_t)bp->blk_birth); 1480 } else { 1481 (void) snprintf(blkbuf + strlen(blkbuf), 1482 buflen - strlen(blkbuf), 1483 "%llxL/%llxP F=%llu B=%llu/%llu", 1484 (u_longlong_t)BP_GET_LSIZE(bp), 1485 (u_longlong_t)BP_GET_PSIZE(bp), 1486 (u_longlong_t)BP_GET_FILL(bp), 1487 (u_longlong_t)bp->blk_birth, 1488 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1489 } 1490 } 1491 1492 static void 1493 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1494 const dnode_phys_t *dnp) 1495 { 1496 char blkbuf[BP_SPRINTF_LEN]; 1497 int l; 1498 1499 if (!BP_IS_EMBEDDED(bp)) { 1500 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1501 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1502 } 1503 1504 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1505 1506 ASSERT(zb->zb_level >= 0); 1507 1508 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1509 if (l == zb->zb_level) { 1510 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1511 } else { 1512 (void) printf(" "); 1513 } 1514 } 1515 1516 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1517 (void) printf("%s\n", blkbuf); 1518 } 1519 1520 static int 1521 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1522 blkptr_t *bp, const zbookmark_phys_t *zb) 1523 { 1524 int err = 0; 1525 1526 if (bp->blk_birth == 0) 1527 return (0); 1528 1529 print_indirect(bp, zb, dnp); 1530 1531 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1532 arc_flags_t flags = ARC_FLAG_WAIT; 1533 int i; 1534 blkptr_t *cbp; 1535 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1536 arc_buf_t *buf; 1537 uint64_t fill = 0; 1538 1539 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1540 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1541 if (err) 1542 return (err); 1543 ASSERT(buf->b_data); 1544 1545 /* recursively visit blocks below this */ 1546 cbp = buf->b_data; 1547 for (i = 0; i < epb; i++, cbp++) { 1548 zbookmark_phys_t czb; 1549 1550 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1551 zb->zb_level - 1, 1552 zb->zb_blkid * epb + i); 1553 err = visit_indirect(spa, dnp, cbp, &czb); 1554 if (err) 1555 break; 1556 fill += BP_GET_FILL(cbp); 1557 } 1558 if (!err) 1559 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1560 arc_buf_destroy(buf, &buf); 1561 } 1562 1563 return (err); 1564 } 1565 1566 /*ARGSUSED*/ 1567 static void 1568 dump_indirect(dnode_t *dn) 1569 { 1570 dnode_phys_t *dnp = dn->dn_phys; 1571 int j; 1572 zbookmark_phys_t czb; 1573 1574 (void) printf("Indirect blocks:\n"); 1575 1576 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1577 dn->dn_object, dnp->dn_nlevels - 1, 0); 1578 for (j = 0; j < dnp->dn_nblkptr; j++) { 1579 czb.zb_blkid = j; 1580 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1581 &dnp->dn_blkptr[j], &czb); 1582 } 1583 1584 (void) printf("\n"); 1585 } 1586 1587 /*ARGSUSED*/ 1588 static void 1589 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1590 { 1591 dsl_dir_phys_t *dd = data; 1592 time_t crtime; 1593 char nice[32]; 1594 1595 /* make sure nicenum has enough space */ 1596 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ); 1597 1598 if (dd == NULL) 1599 return; 1600 1601 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1602 1603 crtime = dd->dd_creation_time; 1604 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1605 (void) printf("\t\thead_dataset_obj = %llu\n", 1606 (u_longlong_t)dd->dd_head_dataset_obj); 1607 (void) printf("\t\tparent_dir_obj = %llu\n", 1608 (u_longlong_t)dd->dd_parent_obj); 1609 (void) printf("\t\torigin_obj = %llu\n", 1610 (u_longlong_t)dd->dd_origin_obj); 1611 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1612 (u_longlong_t)dd->dd_child_dir_zapobj); 1613 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); 1614 (void) printf("\t\tused_bytes = %s\n", nice); 1615 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); 1616 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1617 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); 1618 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1619 zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); 1620 (void) printf("\t\tquota = %s\n", nice); 1621 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); 1622 (void) printf("\t\treserved = %s\n", nice); 1623 (void) printf("\t\tprops_zapobj = %llu\n", 1624 (u_longlong_t)dd->dd_props_zapobj); 1625 (void) printf("\t\tdeleg_zapobj = %llu\n", 1626 (u_longlong_t)dd->dd_deleg_zapobj); 1627 (void) printf("\t\tflags = %llx\n", 1628 (u_longlong_t)dd->dd_flags); 1629 1630 #define DO(which) \ 1631 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ 1632 sizeof (nice)); \ 1633 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1634 DO(HEAD); 1635 DO(SNAP); 1636 DO(CHILD); 1637 DO(CHILD_RSRV); 1638 DO(REFRSRV); 1639 #undef DO 1640 (void) printf("\t\tclones = %llu\n", 1641 (u_longlong_t)dd->dd_clones); 1642 } 1643 1644 /*ARGSUSED*/ 1645 static void 1646 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1647 { 1648 dsl_dataset_phys_t *ds = data; 1649 time_t crtime; 1650 char used[32], compressed[32], uncompressed[32], unique[32]; 1651 char blkbuf[BP_SPRINTF_LEN]; 1652 1653 /* make sure nicenum has enough space */ 1654 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ); 1655 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ); 1656 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ); 1657 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ); 1658 1659 if (ds == NULL) 1660 return; 1661 1662 ASSERT(size == sizeof (*ds)); 1663 crtime = ds->ds_creation_time; 1664 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); 1665 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); 1666 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, 1667 sizeof (uncompressed)); 1668 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); 1669 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1670 1671 (void) printf("\t\tdir_obj = %llu\n", 1672 (u_longlong_t)ds->ds_dir_obj); 1673 (void) printf("\t\tprev_snap_obj = %llu\n", 1674 (u_longlong_t)ds->ds_prev_snap_obj); 1675 (void) printf("\t\tprev_snap_txg = %llu\n", 1676 (u_longlong_t)ds->ds_prev_snap_txg); 1677 (void) printf("\t\tnext_snap_obj = %llu\n", 1678 (u_longlong_t)ds->ds_next_snap_obj); 1679 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1680 (u_longlong_t)ds->ds_snapnames_zapobj); 1681 (void) printf("\t\tnum_children = %llu\n", 1682 (u_longlong_t)ds->ds_num_children); 1683 (void) printf("\t\tuserrefs_obj = %llu\n", 1684 (u_longlong_t)ds->ds_userrefs_obj); 1685 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1686 (void) printf("\t\tcreation_txg = %llu\n", 1687 (u_longlong_t)ds->ds_creation_txg); 1688 (void) printf("\t\tdeadlist_obj = %llu\n", 1689 (u_longlong_t)ds->ds_deadlist_obj); 1690 (void) printf("\t\tused_bytes = %s\n", used); 1691 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1692 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1693 (void) printf("\t\tunique = %s\n", unique); 1694 (void) printf("\t\tfsid_guid = %llu\n", 1695 (u_longlong_t)ds->ds_fsid_guid); 1696 (void) printf("\t\tguid = %llu\n", 1697 (u_longlong_t)ds->ds_guid); 1698 (void) printf("\t\tflags = %llx\n", 1699 (u_longlong_t)ds->ds_flags); 1700 (void) printf("\t\tnext_clones_obj = %llu\n", 1701 (u_longlong_t)ds->ds_next_clones_obj); 1702 (void) printf("\t\tprops_obj = %llu\n", 1703 (u_longlong_t)ds->ds_props_obj); 1704 (void) printf("\t\tbp = %s\n", blkbuf); 1705 } 1706 1707 /* ARGSUSED */ 1708 static int 1709 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1710 { 1711 char blkbuf[BP_SPRINTF_LEN]; 1712 1713 if (bp->blk_birth != 0) { 1714 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1715 (void) printf("\t%s\n", blkbuf); 1716 } 1717 return (0); 1718 } 1719 1720 static void 1721 dump_bptree(objset_t *os, uint64_t obj, const char *name) 1722 { 1723 char bytes[32]; 1724 bptree_phys_t *bt; 1725 dmu_buf_t *db; 1726 1727 /* make sure nicenum has enough space */ 1728 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1729 1730 if (dump_opt['d'] < 3) 1731 return; 1732 1733 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1734 bt = db->db_data; 1735 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); 1736 (void) printf("\n %s: %llu datasets, %s\n", 1737 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1738 dmu_buf_rele(db, FTAG); 1739 1740 if (dump_opt['d'] < 5) 1741 return; 1742 1743 (void) printf("\n"); 1744 1745 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1746 } 1747 1748 /* ARGSUSED */ 1749 static int 1750 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1751 { 1752 char blkbuf[BP_SPRINTF_LEN]; 1753 1754 ASSERT(bp->blk_birth != 0); 1755 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1756 (void) printf("\t%s\n", blkbuf); 1757 return (0); 1758 } 1759 1760 static void 1761 dump_full_bpobj(bpobj_t *bpo, const char *name, int indent) 1762 { 1763 char bytes[32]; 1764 char comp[32]; 1765 char uncomp[32]; 1766 1767 /* make sure nicenum has enough space */ 1768 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1769 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1770 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1771 1772 if (dump_opt['d'] < 3) 1773 return; 1774 1775 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); 1776 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1777 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); 1778 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); 1779 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1780 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1781 indent * 8, name, 1782 (u_longlong_t)bpo->bpo_object, 1783 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1784 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1785 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1786 bytes, comp, uncomp); 1787 1788 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1789 uint64_t subobj; 1790 bpobj_t subbpo; 1791 int error; 1792 VERIFY0(dmu_read(bpo->bpo_os, 1793 bpo->bpo_phys->bpo_subobjs, 1794 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1795 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1796 if (error != 0) { 1797 (void) printf("ERROR %u while trying to open " 1798 "subobj id %llu\n", 1799 error, (u_longlong_t)subobj); 1800 continue; 1801 } 1802 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1803 bpobj_close(&subbpo); 1804 } 1805 } else { 1806 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1807 indent * 8, name, 1808 (u_longlong_t)bpo->bpo_object, 1809 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1810 bytes); 1811 } 1812 1813 if (dump_opt['d'] < 5) 1814 return; 1815 1816 1817 if (indent == 0) { 1818 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1819 (void) printf("\n"); 1820 } 1821 } 1822 1823 static void 1824 bpobj_count_refd(bpobj_t *bpo) 1825 { 1826 mos_obj_refd(bpo->bpo_object); 1827 1828 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1829 mos_obj_refd(bpo->bpo_phys->bpo_subobjs); 1830 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1831 uint64_t subobj; 1832 bpobj_t subbpo; 1833 int error; 1834 VERIFY0(dmu_read(bpo->bpo_os, 1835 bpo->bpo_phys->bpo_subobjs, 1836 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1837 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1838 if (error != 0) { 1839 (void) printf("ERROR %u while trying to open " 1840 "subobj id %llu\n", 1841 error, (u_longlong_t)subobj); 1842 continue; 1843 } 1844 bpobj_count_refd(&subbpo); 1845 bpobj_close(&subbpo); 1846 } 1847 } 1848 } 1849 1850 static void 1851 dump_deadlist(dsl_deadlist_t *dl) 1852 { 1853 dsl_deadlist_entry_t *dle; 1854 uint64_t unused; 1855 char bytes[32]; 1856 char comp[32]; 1857 char uncomp[32]; 1858 uint64_t empty_bpobj = 1859 dmu_objset_spa(dl->dl_os)->spa_dsl_pool->dp_empty_bpobj; 1860 1861 /* force the tree to be loaded */ 1862 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1863 1864 if (dl->dl_oldfmt) { 1865 if (dl->dl_bpobj.bpo_object != empty_bpobj) 1866 bpobj_count_refd(&dl->dl_bpobj); 1867 } else { 1868 mos_obj_refd(dl->dl_object); 1869 for (dle = avl_first(&dl->dl_tree); dle; 1870 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1871 if (dle->dle_bpobj.bpo_object != empty_bpobj) 1872 bpobj_count_refd(&dle->dle_bpobj); 1873 } 1874 } 1875 1876 /* make sure nicenum has enough space */ 1877 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1878 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1879 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1880 1881 if (dump_opt['d'] < 3) 1882 return; 1883 1884 if (dl->dl_oldfmt) { 1885 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1886 return; 1887 } 1888 1889 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); 1890 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); 1891 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); 1892 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1893 bytes, comp, uncomp); 1894 1895 if (dump_opt['d'] < 4) 1896 return; 1897 1898 (void) printf("\n"); 1899 1900 for (dle = avl_first(&dl->dl_tree); dle; 1901 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1902 if (dump_opt['d'] >= 5) { 1903 char buf[128]; 1904 (void) snprintf(buf, sizeof (buf), 1905 "mintxg %llu -> obj %llu", 1906 (longlong_t)dle->dle_mintxg, 1907 (longlong_t)dle->dle_bpobj.bpo_object); 1908 1909 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1910 } else { 1911 (void) printf("mintxg %llu -> obj %llu\n", 1912 (longlong_t)dle->dle_mintxg, 1913 (longlong_t)dle->dle_bpobj.bpo_object); 1914 } 1915 } 1916 } 1917 1918 static avl_tree_t idx_tree; 1919 static avl_tree_t domain_tree; 1920 static boolean_t fuid_table_loaded; 1921 static objset_t *sa_os = NULL; 1922 static sa_attr_type_t *sa_attr_table = NULL; 1923 1924 static int 1925 open_objset(const char *path, dmu_objset_type_t type, void *tag, objset_t **osp) 1926 { 1927 int err; 1928 uint64_t sa_attrs = 0; 1929 uint64_t version = 0; 1930 1931 VERIFY3P(sa_os, ==, NULL); 1932 err = dmu_objset_own(path, type, B_TRUE, B_FALSE, tag, osp); 1933 if (err != 0) { 1934 (void) fprintf(stderr, "failed to own dataset '%s': %s\n", path, 1935 strerror(err)); 1936 return (err); 1937 } 1938 1939 if (dmu_objset_type(*osp) == DMU_OST_ZFS && !(*osp)->os_encrypted) { 1940 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1941 8, 1, &version); 1942 if (version >= ZPL_VERSION_SA) { 1943 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1944 8, 1, &sa_attrs); 1945 } 1946 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 1947 &sa_attr_table); 1948 if (err != 0) { 1949 (void) fprintf(stderr, "sa_setup failed: %s\n", 1950 strerror(err)); 1951 dmu_objset_disown(*osp, B_FALSE, tag); 1952 *osp = NULL; 1953 } 1954 } 1955 sa_os = *osp; 1956 1957 return (0); 1958 } 1959 1960 static void 1961 close_objset(objset_t *os, void *tag) 1962 { 1963 VERIFY3P(os, ==, sa_os); 1964 if (os->os_sa != NULL) 1965 sa_tear_down(os); 1966 dmu_objset_disown(os, B_FALSE, tag); 1967 sa_attr_table = NULL; 1968 sa_os = NULL; 1969 } 1970 1971 static void 1972 fuid_table_destroy() 1973 { 1974 if (fuid_table_loaded) { 1975 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1976 fuid_table_loaded = B_FALSE; 1977 } 1978 } 1979 1980 /* 1981 * print uid or gid information. 1982 * For normal POSIX id just the id is printed in decimal format. 1983 * For CIFS files with FUID the fuid is printed in hex followed by 1984 * the domain-rid string. 1985 */ 1986 static void 1987 print_idstr(uint64_t id, const char *id_type) 1988 { 1989 if (FUID_INDEX(id)) { 1990 char *domain; 1991 1992 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1993 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1994 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1995 } else { 1996 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1997 } 1998 1999 } 2000 2001 static void 2002 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 2003 { 2004 uint32_t uid_idx, gid_idx; 2005 2006 uid_idx = FUID_INDEX(uid); 2007 gid_idx = FUID_INDEX(gid); 2008 2009 /* Load domain table, if not already loaded */ 2010 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 2011 uint64_t fuid_obj; 2012 2013 /* first find the fuid object. It lives in the master node */ 2014 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 2015 8, 1, &fuid_obj) == 0); 2016 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 2017 (void) zfs_fuid_table_load(os, fuid_obj, 2018 &idx_tree, &domain_tree); 2019 fuid_table_loaded = B_TRUE; 2020 } 2021 2022 print_idstr(uid, "uid"); 2023 print_idstr(gid, "gid"); 2024 } 2025 2026 /*ARGSUSED*/ 2027 static void 2028 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 2029 { 2030 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 2031 sa_handle_t *hdl; 2032 uint64_t xattr, rdev, gen; 2033 uint64_t uid, gid, mode, fsize, parent, links; 2034 uint64_t pflags; 2035 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 2036 time_t z_crtime, z_atime, z_mtime, z_ctime; 2037 sa_bulk_attr_t bulk[12]; 2038 int idx = 0; 2039 int error; 2040 2041 VERIFY3P(os, ==, sa_os); 2042 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 2043 (void) printf("Failed to get handle for SA znode\n"); 2044 return; 2045 } 2046 2047 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 2048 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 2049 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 2050 &links, 8); 2051 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 2052 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 2053 &mode, 8); 2054 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 2055 NULL, &parent, 8); 2056 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 2057 &fsize, 8); 2058 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 2059 acctm, 16); 2060 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 2061 modtm, 16); 2062 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 2063 crtm, 16); 2064 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 2065 chgtm, 16); 2066 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 2067 &pflags, 8); 2068 2069 if (sa_bulk_lookup(hdl, bulk, idx)) { 2070 (void) sa_handle_destroy(hdl); 2071 return; 2072 } 2073 2074 z_crtime = (time_t)crtm[0]; 2075 z_atime = (time_t)acctm[0]; 2076 z_mtime = (time_t)modtm[0]; 2077 z_ctime = (time_t)chgtm[0]; 2078 2079 if (dump_opt['d'] > 4) { 2080 error = zfs_obj_to_path(os, object, path, sizeof (path)); 2081 if (error == ESTALE) { 2082 (void) snprintf(path, sizeof (path), "on delete queue"); 2083 } else if (error != 0) { 2084 leaked_objects++; 2085 (void) snprintf(path, sizeof (path), 2086 "path not found, possibly leaked"); 2087 } 2088 (void) printf("\tpath %s\n", path); 2089 } 2090 dump_uidgid(os, uid, gid); 2091 (void) printf("\tatime %s", ctime(&z_atime)); 2092 (void) printf("\tmtime %s", ctime(&z_mtime)); 2093 (void) printf("\tctime %s", ctime(&z_ctime)); 2094 (void) printf("\tcrtime %s", ctime(&z_crtime)); 2095 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 2096 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 2097 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 2098 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 2099 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 2100 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 2101 if (dmu_objset_projectquota_enabled(os) && (pflags & ZFS_PROJID)) { 2102 uint64_t projid; 2103 2104 if (sa_lookup(hdl, sa_attr_table[ZPL_PROJID], &projid, 2105 sizeof (uint64_t)) == 0) 2106 (void) printf("\tprojid %llu\n", (u_longlong_t)projid); 2107 } 2108 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 2109 sizeof (uint64_t)) == 0) 2110 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 2111 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 2112 sizeof (uint64_t)) == 0) 2113 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 2114 sa_handle_destroy(hdl); 2115 } 2116 2117 /*ARGSUSED*/ 2118 static void 2119 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 2120 { 2121 } 2122 2123 /*ARGSUSED*/ 2124 static void 2125 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 2126 { 2127 } 2128 2129 2130 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 2131 dump_none, /* unallocated */ 2132 dump_zap, /* object directory */ 2133 dump_uint64, /* object array */ 2134 dump_none, /* packed nvlist */ 2135 dump_packed_nvlist, /* packed nvlist size */ 2136 dump_none, /* bpobj */ 2137 dump_bpobj, /* bpobj header */ 2138 dump_none, /* SPA space map header */ 2139 dump_none, /* SPA space map */ 2140 dump_none, /* ZIL intent log */ 2141 dump_dnode, /* DMU dnode */ 2142 dump_dmu_objset, /* DMU objset */ 2143 dump_dsl_dir, /* DSL directory */ 2144 dump_zap, /* DSL directory child map */ 2145 dump_zap, /* DSL dataset snap map */ 2146 dump_zap, /* DSL props */ 2147 dump_dsl_dataset, /* DSL dataset */ 2148 dump_znode, /* ZFS znode */ 2149 dump_acl, /* ZFS V0 ACL */ 2150 dump_uint8, /* ZFS plain file */ 2151 dump_zpldir, /* ZFS directory */ 2152 dump_zap, /* ZFS master node */ 2153 dump_zap, /* ZFS delete queue */ 2154 dump_uint8, /* zvol object */ 2155 dump_zap, /* zvol prop */ 2156 dump_uint8, /* other uint8[] */ 2157 dump_uint64, /* other uint64[] */ 2158 dump_zap, /* other ZAP */ 2159 dump_zap, /* persistent error log */ 2160 dump_uint8, /* SPA history */ 2161 dump_history_offsets, /* SPA history offsets */ 2162 dump_zap, /* Pool properties */ 2163 dump_zap, /* DSL permissions */ 2164 dump_acl, /* ZFS ACL */ 2165 dump_uint8, /* ZFS SYSACL */ 2166 dump_none, /* FUID nvlist */ 2167 dump_packed_nvlist, /* FUID nvlist size */ 2168 dump_zap, /* DSL dataset next clones */ 2169 dump_zap, /* DSL scrub queue */ 2170 dump_zap, /* ZFS user/group/project used */ 2171 dump_zap, /* ZFS user/group/project quota */ 2172 dump_zap, /* snapshot refcount tags */ 2173 dump_ddt_zap, /* DDT ZAP object */ 2174 dump_zap, /* DDT statistics */ 2175 dump_znode, /* SA object */ 2176 dump_zap, /* SA Master Node */ 2177 dump_sa_attrs, /* SA attribute registration */ 2178 dump_sa_layouts, /* SA attribute layouts */ 2179 dump_zap, /* DSL scrub translations */ 2180 dump_none, /* fake dedup BP */ 2181 dump_zap, /* deadlist */ 2182 dump_none, /* deadlist hdr */ 2183 dump_zap, /* dsl clones */ 2184 dump_bpobj_subobjs, /* bpobj subobjs */ 2185 dump_unknown, /* Unknown type, must be last */ 2186 }; 2187 2188 static void 2189 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header, 2190 uint64_t *dnode_slots_used) 2191 { 2192 dmu_buf_t *db = NULL; 2193 dmu_object_info_t doi; 2194 dnode_t *dn; 2195 boolean_t dnode_held = B_FALSE; 2196 void *bonus = NULL; 2197 size_t bsize = 0; 2198 char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32]; 2199 char bonus_size[32]; 2200 char aux[50]; 2201 int error; 2202 2203 /* make sure nicenum has enough space */ 2204 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ); 2205 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ); 2206 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 2207 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 2208 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ); 2209 2210 if (*print_header) { 2211 (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n", 2212 "Object", "lvl", "iblk", "dblk", "dsize", "dnsize", 2213 "lsize", "%full", "type"); 2214 *print_header = 0; 2215 } 2216 2217 if (object == 0) { 2218 dn = DMU_META_DNODE(os); 2219 dmu_object_info_from_dnode(dn, &doi); 2220 } else { 2221 /* 2222 * Encrypted datasets will have sensitive bonus buffers 2223 * encrypted. Therefore we cannot hold the bonus buffer and 2224 * must hold the dnode itself instead. 2225 */ 2226 error = dmu_object_info(os, object, &doi); 2227 if (error) 2228 fatal("dmu_object_info() failed, errno %u", error); 2229 2230 if (os->os_encrypted && 2231 DMU_OT_IS_ENCRYPTED(doi.doi_bonus_type)) { 2232 error = dnode_hold(os, object, FTAG, &dn); 2233 if (error) 2234 fatal("dnode_hold() failed, errno %u", error); 2235 dnode_held = B_TRUE; 2236 } else { 2237 error = dmu_bonus_hold(os, object, FTAG, &db); 2238 if (error) 2239 fatal("dmu_bonus_hold(%llu) failed, errno %u", 2240 object, error); 2241 bonus = db->db_data; 2242 bsize = db->db_size; 2243 dn = DB_DNODE((dmu_buf_impl_t *)db); 2244 } 2245 } 2246 2247 if (dnode_slots_used != NULL) 2248 *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE; 2249 2250 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk)); 2251 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk)); 2252 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize)); 2253 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize)); 2254 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size)); 2255 zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize)); 2256 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 2257 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 2258 doi.doi_max_offset); 2259 2260 aux[0] = '\0'; 2261 2262 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 2263 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 2264 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 2265 } 2266 2267 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 2268 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 2269 ZDB_COMPRESS_NAME(doi.doi_compress)); 2270 } 2271 2272 (void) printf("%10" PRIu64 2273 " %3u %5s %5s %5s %5s %5s %6s %s%s\n", 2274 object, doi.doi_indirection, iblk, dblk, 2275 asize, dnsize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 2276 2277 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 2278 (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n", 2279 "", "", "", "", "", "", bonus_size, "bonus", 2280 ZDB_OT_NAME(doi.doi_bonus_type)); 2281 } 2282 2283 if (verbosity >= 4) { 2284 (void) printf("\tdnode flags: %s%s%s%s\n", 2285 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 2286 "USED_BYTES " : "", 2287 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 2288 "USERUSED_ACCOUNTED " : "", 2289 (dn->dn_phys->dn_flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) ? 2290 "USEROBJUSED_ACCOUNTED " : "", 2291 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 2292 "SPILL_BLKPTR" : ""); 2293 (void) printf("\tdnode maxblkid: %llu\n", 2294 (longlong_t)dn->dn_phys->dn_maxblkid); 2295 2296 if (!dnode_held) { 2297 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, 2298 object, bonus, bsize); 2299 } else { 2300 (void) printf("\t\t(bonus encrypted)\n"); 2301 } 2302 2303 if (!os->os_encrypted || !DMU_OT_IS_ENCRYPTED(doi.doi_type)) { 2304 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, 2305 NULL, 0); 2306 } else { 2307 (void) printf("\t\t(object encrypted)\n"); 2308 } 2309 2310 *print_header = 1; 2311 } 2312 2313 if (verbosity >= 5) 2314 dump_indirect(dn); 2315 2316 if (verbosity >= 5) { 2317 /* 2318 * Report the list of segments that comprise the object. 2319 */ 2320 uint64_t start = 0; 2321 uint64_t end; 2322 uint64_t blkfill = 1; 2323 int minlvl = 1; 2324 2325 if (dn->dn_type == DMU_OT_DNODE) { 2326 minlvl = 0; 2327 blkfill = DNODES_PER_BLOCK; 2328 } 2329 2330 for (;;) { 2331 char segsize[32]; 2332 /* make sure nicenum has enough space */ 2333 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ); 2334 error = dnode_next_offset(dn, 2335 0, &start, minlvl, blkfill, 0); 2336 if (error) 2337 break; 2338 end = start; 2339 error = dnode_next_offset(dn, 2340 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 2341 zdb_nicenum(end - start, segsize, sizeof (segsize)); 2342 (void) printf("\t\tsegment [%016llx, %016llx)" 2343 " size %5s\n", (u_longlong_t)start, 2344 (u_longlong_t)end, segsize); 2345 if (error) 2346 break; 2347 start = end; 2348 } 2349 } 2350 2351 if (db != NULL) 2352 dmu_buf_rele(db, FTAG); 2353 if (dnode_held) 2354 dnode_rele(dn, FTAG); 2355 } 2356 2357 static void 2358 count_dir_mos_objects(dsl_dir_t *dd) 2359 { 2360 mos_obj_refd(dd->dd_object); 2361 mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj); 2362 mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj); 2363 mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj); 2364 mos_obj_refd(dsl_dir_phys(dd)->dd_clones); 2365 } 2366 2367 static void 2368 count_ds_mos_objects(dsl_dataset_t *ds) 2369 { 2370 mos_obj_refd(ds->ds_object); 2371 mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj); 2372 mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj); 2373 mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj); 2374 mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj); 2375 2376 if (!dsl_dataset_is_snapshot(ds)) { 2377 count_dir_mos_objects(ds->ds_dir); 2378 } 2379 } 2380 2381 static const char *objset_types[DMU_OST_NUMTYPES] = { 2382 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 2383 2384 static void 2385 dump_dir(objset_t *os) 2386 { 2387 dmu_objset_stats_t dds; 2388 uint64_t object, object_count; 2389 uint64_t refdbytes, usedobjs, scratch; 2390 char numbuf[32]; 2391 char blkbuf[BP_SPRINTF_LEN + 20]; 2392 char osname[ZFS_MAX_DATASET_NAME_LEN]; 2393 const char *type = "UNKNOWN"; 2394 int verbosity = dump_opt['d']; 2395 int print_header = 1; 2396 unsigned i; 2397 int error; 2398 uint64_t total_slots_used = 0; 2399 uint64_t max_slot_used = 0; 2400 uint64_t dnode_slots; 2401 2402 /* make sure nicenum has enough space */ 2403 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ); 2404 2405 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 2406 dmu_objset_fast_stat(os, &dds); 2407 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 2408 2409 if (dds.dds_type < DMU_OST_NUMTYPES) 2410 type = objset_types[dds.dds_type]; 2411 2412 if (dds.dds_type == DMU_OST_META) { 2413 dds.dds_creation_txg = TXG_INITIAL; 2414 usedobjs = BP_GET_FILL(os->os_rootbp); 2415 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 2416 dd_used_bytes; 2417 } else { 2418 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 2419 } 2420 2421 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 2422 2423 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf)); 2424 2425 if (verbosity >= 4) { 2426 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 2427 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 2428 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 2429 } else { 2430 blkbuf[0] = '\0'; 2431 } 2432 2433 dmu_objset_name(os, osname); 2434 2435 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 2436 "%s, %llu objects%s%s\n", 2437 osname, type, (u_longlong_t)dmu_objset_id(os), 2438 (u_longlong_t)dds.dds_creation_txg, 2439 numbuf, (u_longlong_t)usedobjs, blkbuf, 2440 (dds.dds_inconsistent) ? " (inconsistent)" : ""); 2441 2442 if (zopt_objects != 0) { 2443 for (i = 0; i < zopt_objects; i++) 2444 dump_object(os, zopt_object[i], verbosity, 2445 &print_header, NULL); 2446 (void) printf("\n"); 2447 return; 2448 } 2449 2450 if (dump_opt['i'] != 0 || verbosity >= 2) 2451 dump_intent_log(dmu_objset_zil(os)); 2452 2453 if (dmu_objset_ds(os) != NULL) { 2454 dsl_dataset_t *ds = dmu_objset_ds(os); 2455 dump_deadlist(&ds->ds_deadlist); 2456 2457 if (dsl_dataset_remap_deadlist_exists(ds)) { 2458 (void) printf("ds_remap_deadlist:\n"); 2459 dump_deadlist(&ds->ds_remap_deadlist); 2460 } 2461 count_ds_mos_objects(ds); 2462 } 2463 2464 if (verbosity < 2) 2465 return; 2466 2467 if (BP_IS_HOLE(os->os_rootbp)) 2468 return; 2469 2470 dump_object(os, 0, verbosity, &print_header, NULL); 2471 object_count = 0; 2472 if (DMU_USERUSED_DNODE(os) != NULL && 2473 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2474 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header, 2475 NULL); 2476 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header, 2477 NULL); 2478 } 2479 2480 if (DMU_PROJECTUSED_DNODE(os) != NULL && 2481 DMU_PROJECTUSED_DNODE(os)->dn_type != 0) 2482 dump_object(os, DMU_PROJECTUSED_OBJECT, verbosity, 2483 &print_header, NULL); 2484 2485 object = 0; 2486 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2487 dump_object(os, object, verbosity, &print_header, &dnode_slots); 2488 object_count++; 2489 total_slots_used += dnode_slots; 2490 max_slot_used = object + dnode_slots - 1; 2491 } 2492 2493 (void) printf("\n"); 2494 2495 (void) printf(" Dnode slots:\n"); 2496 (void) printf("\tTotal used: %10llu\n", 2497 (u_longlong_t)total_slots_used); 2498 (void) printf("\tMax used: %10llu\n", 2499 (u_longlong_t)max_slot_used); 2500 (void) printf("\tPercent empty: %10lf\n", 2501 (double)(max_slot_used - total_slots_used)*100 / 2502 (double)max_slot_used); 2503 2504 (void) printf("\n"); 2505 2506 if (error != ESRCH) { 2507 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2508 abort(); 2509 } 2510 if (leaked_objects != 0) { 2511 (void) printf("%d potentially leaked objects detected\n", 2512 leaked_objects); 2513 leaked_objects = 0; 2514 } 2515 2516 ASSERT3U(object_count, ==, usedobjs); 2517 } 2518 2519 static void 2520 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2521 { 2522 time_t timestamp = ub->ub_timestamp; 2523 2524 (void) printf("%s", header ? header : ""); 2525 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2526 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2527 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2528 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2529 (void) printf("\ttimestamp = %llu UTC = %s", 2530 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2531 2532 (void) printf("\tmmp_magic = %016llx\n", 2533 (u_longlong_t)ub->ub_mmp_magic); 2534 if (MMP_VALID(ub)) { 2535 (void) printf("\tmmp_delay = %0llu\n", 2536 (u_longlong_t)ub->ub_mmp_delay); 2537 if (MMP_SEQ_VALID(ub)) 2538 (void) printf("\tmmp_seq = %u\n", 2539 (unsigned int) MMP_SEQ(ub)); 2540 if (MMP_FAIL_INT_VALID(ub)) 2541 (void) printf("\tmmp_fail = %u\n", 2542 (unsigned int) MMP_FAIL_INT(ub)); 2543 if (MMP_INTERVAL_VALID(ub)) 2544 (void) printf("\tmmp_write = %u\n", 2545 (unsigned int) MMP_INTERVAL(ub)); 2546 /* After MMP_* to make summarize_uberblock_mmp cleaner */ 2547 (void) printf("\tmmp_valid = %x\n", 2548 (unsigned int) ub->ub_mmp_config & 0xFF); 2549 } 2550 2551 if (dump_opt['u'] >= 3) { 2552 char blkbuf[BP_SPRINTF_LEN]; 2553 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2554 (void) printf("\trootbp = %s\n", blkbuf); 2555 } 2556 (void) printf("\tcheckpoint_txg = %llu\n", 2557 (u_longlong_t)ub->ub_checkpoint_txg); 2558 (void) printf("%s", footer ? footer : ""); 2559 } 2560 2561 static void 2562 dump_config(spa_t *spa) 2563 { 2564 dmu_buf_t *db; 2565 size_t nvsize = 0; 2566 int error = 0; 2567 2568 2569 error = dmu_bonus_hold(spa->spa_meta_objset, 2570 spa->spa_config_object, FTAG, &db); 2571 2572 if (error == 0) { 2573 nvsize = *(uint64_t *)db->db_data; 2574 dmu_buf_rele(db, FTAG); 2575 2576 (void) printf("\nMOS Configuration:\n"); 2577 dump_packed_nvlist(spa->spa_meta_objset, 2578 spa->spa_config_object, (void *)&nvsize, 1); 2579 } else { 2580 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2581 (u_longlong_t)spa->spa_config_object, error); 2582 } 2583 } 2584 2585 static void 2586 dump_cachefile(const char *cachefile) 2587 { 2588 int fd; 2589 struct stat64 statbuf; 2590 char *buf; 2591 nvlist_t *config; 2592 2593 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2594 (void) printf("cannot open '%s': %s\n", cachefile, 2595 strerror(errno)); 2596 exit(1); 2597 } 2598 2599 if (fstat64(fd, &statbuf) != 0) { 2600 (void) printf("failed to stat '%s': %s\n", cachefile, 2601 strerror(errno)); 2602 exit(1); 2603 } 2604 2605 if ((buf = malloc(statbuf.st_size)) == NULL) { 2606 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2607 (u_longlong_t)statbuf.st_size); 2608 exit(1); 2609 } 2610 2611 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2612 (void) fprintf(stderr, "failed to read %llu bytes\n", 2613 (u_longlong_t)statbuf.st_size); 2614 exit(1); 2615 } 2616 2617 (void) close(fd); 2618 2619 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2620 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2621 exit(1); 2622 } 2623 2624 free(buf); 2625 2626 dump_nvlist(config, 0); 2627 2628 nvlist_free(config); 2629 } 2630 2631 #define ZDB_MAX_UB_HEADER_SIZE 32 2632 2633 static void 2634 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2635 { 2636 vdev_t vd; 2637 vdev_t *vdp = &vd; 2638 char header[ZDB_MAX_UB_HEADER_SIZE]; 2639 2640 vd.vdev_ashift = ashift; 2641 vdp->vdev_top = vdp; 2642 2643 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2644 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2645 uberblock_t *ub = (void *)((char *)lbl + uoff); 2646 2647 if (uberblock_verify(ub)) 2648 continue; 2649 2650 if ((dump_opt['u'] < 4) && 2651 (ub->ub_mmp_magic == MMP_MAGIC) && ub->ub_mmp_delay && 2652 (i >= VDEV_UBERBLOCK_COUNT(&vd) - MMP_BLOCKS_PER_LABEL)) 2653 continue; 2654 2655 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2656 "Uberblock[%d]\n", i); 2657 dump_uberblock(ub, header, ""); 2658 } 2659 } 2660 2661 static char curpath[PATH_MAX]; 2662 2663 /* 2664 * Iterate through the path components, recursively passing 2665 * current one's obj and remaining path until we find the obj 2666 * for the last one. 2667 */ 2668 static int 2669 dump_path_impl(objset_t *os, uint64_t obj, char *name) 2670 { 2671 int err; 2672 int header = 1; 2673 uint64_t child_obj; 2674 char *s; 2675 dmu_buf_t *db; 2676 dmu_object_info_t doi; 2677 2678 if ((s = strchr(name, '/')) != NULL) 2679 *s = '\0'; 2680 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 2681 2682 (void) strlcat(curpath, name, sizeof (curpath)); 2683 2684 if (err != 0) { 2685 (void) fprintf(stderr, "failed to lookup %s: %s\n", 2686 curpath, strerror(err)); 2687 return (err); 2688 } 2689 2690 child_obj = ZFS_DIRENT_OBJ(child_obj); 2691 err = sa_buf_hold(os, child_obj, FTAG, &db); 2692 if (err != 0) { 2693 (void) fprintf(stderr, 2694 "failed to get SA dbuf for obj %llu: %s\n", 2695 (u_longlong_t)child_obj, strerror(err)); 2696 return (EINVAL); 2697 } 2698 dmu_object_info_from_db(db, &doi); 2699 sa_buf_rele(db, FTAG); 2700 2701 if (doi.doi_bonus_type != DMU_OT_SA && 2702 doi.doi_bonus_type != DMU_OT_ZNODE) { 2703 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 2704 doi.doi_bonus_type, (u_longlong_t)child_obj); 2705 return (EINVAL); 2706 } 2707 2708 if (dump_opt['v'] > 6) { 2709 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 2710 (u_longlong_t)child_obj, curpath, doi.doi_type, 2711 doi.doi_bonus_type); 2712 } 2713 2714 (void) strlcat(curpath, "/", sizeof (curpath)); 2715 2716 switch (doi.doi_type) { 2717 case DMU_OT_DIRECTORY_CONTENTS: 2718 if (s != NULL && *(s + 1) != '\0') 2719 return (dump_path_impl(os, child_obj, s + 1)); 2720 /*FALLTHROUGH*/ 2721 case DMU_OT_PLAIN_FILE_CONTENTS: 2722 dump_object(os, child_obj, dump_opt['v'], &header, NULL); 2723 return (0); 2724 default: 2725 (void) fprintf(stderr, "object %llu has non-file/directory " 2726 "type %d\n", (u_longlong_t)obj, doi.doi_type); 2727 break; 2728 } 2729 2730 return (EINVAL); 2731 } 2732 2733 /* 2734 * Dump the blocks for the object specified by path inside the dataset. 2735 */ 2736 static int 2737 dump_path(char *ds, char *path) 2738 { 2739 int err; 2740 objset_t *os; 2741 uint64_t root_obj; 2742 2743 err = open_objset(ds, DMU_OST_ZFS, FTAG, &os); 2744 if (err != 0) 2745 return (err); 2746 2747 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 2748 if (err != 0) { 2749 (void) fprintf(stderr, "can't lookup root znode: %s\n", 2750 strerror(err)); 2751 dmu_objset_disown(os, B_FALSE, FTAG); 2752 return (EINVAL); 2753 } 2754 2755 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 2756 2757 err = dump_path_impl(os, root_obj, path); 2758 2759 close_objset(os, FTAG); 2760 return (err); 2761 } 2762 2763 static int 2764 dump_label(const char *dev) 2765 { 2766 int fd; 2767 vdev_label_t label; 2768 char path[MAXPATHLEN]; 2769 char *buf = label.vl_vdev_phys.vp_nvlist; 2770 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2771 struct stat64 statbuf; 2772 uint64_t psize, ashift; 2773 boolean_t label_found = B_FALSE; 2774 2775 (void) strlcpy(path, dev, sizeof (path)); 2776 if (dev[0] == '/') { 2777 if (strncmp(dev, ZFS_DISK_ROOTD, 2778 strlen(ZFS_DISK_ROOTD)) == 0) { 2779 (void) snprintf(path, sizeof (path), "%s%s", 2780 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); 2781 } 2782 } else if (stat64(path, &statbuf) != 0) { 2783 char *s; 2784 2785 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, 2786 dev); 2787 if (((s = strrchr(dev, 's')) == NULL && 2788 (s = strchr(dev, 'p')) == NULL) || 2789 !isdigit(*(s + 1))) 2790 (void) strlcat(path, "s0", sizeof (path)); 2791 } 2792 2793 if ((fd = open64(path, O_RDONLY)) < 0) { 2794 (void) fprintf(stderr, "cannot open '%s': %s\n", path, 2795 strerror(errno)); 2796 exit(1); 2797 } 2798 2799 if (fstat64(fd, &statbuf) != 0) { 2800 (void) fprintf(stderr, "failed to stat '%s': %s\n", path, 2801 strerror(errno)); 2802 (void) close(fd); 2803 exit(1); 2804 } 2805 2806 if (S_ISBLK(statbuf.st_mode)) { 2807 (void) fprintf(stderr, 2808 "cannot use '%s': character device required\n", path); 2809 (void) close(fd); 2810 exit(1); 2811 } 2812 2813 psize = statbuf.st_size; 2814 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2815 2816 for (int l = 0; l < VDEV_LABELS; l++) { 2817 nvlist_t *config = NULL; 2818 2819 if (!dump_opt['q']) { 2820 (void) printf("------------------------------------\n"); 2821 (void) printf("LABEL %d\n", l); 2822 (void) printf("------------------------------------\n"); 2823 } 2824 2825 if (pread64(fd, &label, sizeof (label), 2826 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2827 if (!dump_opt['q']) 2828 (void) printf("failed to read label %d\n", l); 2829 continue; 2830 } 2831 2832 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2833 if (!dump_opt['q']) 2834 (void) printf("failed to unpack label %d\n", l); 2835 ashift = SPA_MINBLOCKSHIFT; 2836 } else { 2837 nvlist_t *vdev_tree = NULL; 2838 2839 if (!dump_opt['q']) 2840 dump_nvlist(config, 4); 2841 if ((nvlist_lookup_nvlist(config, 2842 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2843 (nvlist_lookup_uint64(vdev_tree, 2844 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2845 ashift = SPA_MINBLOCKSHIFT; 2846 nvlist_free(config); 2847 label_found = B_TRUE; 2848 } 2849 if (dump_opt['u']) 2850 dump_label_uberblocks(&label, ashift); 2851 } 2852 2853 (void) close(fd); 2854 2855 return (label_found ? 0 : 2); 2856 } 2857 2858 static uint64_t dataset_feature_count[SPA_FEATURES]; 2859 static uint64_t remap_deadlist_count = 0; 2860 2861 /*ARGSUSED*/ 2862 static int 2863 dump_one_dir(const char *dsname, void *arg) 2864 { 2865 int error; 2866 objset_t *os; 2867 2868 error = open_objset(dsname, DMU_OST_ANY, FTAG, &os); 2869 if (error != 0) 2870 return (0); 2871 2872 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2873 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2874 continue; 2875 ASSERT(spa_feature_table[f].fi_flags & 2876 ZFEATURE_FLAG_PER_DATASET); 2877 dataset_feature_count[f]++; 2878 } 2879 2880 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) { 2881 remap_deadlist_count++; 2882 } 2883 2884 dump_dir(os); 2885 close_objset(os, FTAG); 2886 fuid_table_destroy(); 2887 return (0); 2888 } 2889 2890 /* 2891 * Block statistics. 2892 */ 2893 #define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2894 typedef struct zdb_blkstats { 2895 uint64_t zb_asize; 2896 uint64_t zb_lsize; 2897 uint64_t zb_psize; 2898 uint64_t zb_count; 2899 uint64_t zb_gangs; 2900 uint64_t zb_ditto_samevdev; 2901 uint64_t zb_ditto_same_ms; 2902 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2903 } zdb_blkstats_t; 2904 2905 /* 2906 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2907 */ 2908 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2909 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2910 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2911 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2912 2913 static const char *zdb_ot_extname[] = { 2914 "deferred free", 2915 "dedup ditto", 2916 "other", 2917 "Total", 2918 }; 2919 2920 #define ZB_TOTAL DN_MAX_LEVELS 2921 2922 typedef struct zdb_cb { 2923 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2924 uint64_t zcb_removing_size; 2925 uint64_t zcb_checkpoint_size; 2926 uint64_t zcb_dedup_asize; 2927 uint64_t zcb_dedup_blocks; 2928 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2929 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2930 [BPE_PAYLOAD_SIZE]; 2931 uint64_t zcb_start; 2932 hrtime_t zcb_lastprint; 2933 uint64_t zcb_totalasize; 2934 uint64_t zcb_errors[256]; 2935 int zcb_readfails; 2936 int zcb_haderrors; 2937 spa_t *zcb_spa; 2938 uint32_t **zcb_vd_obsolete_counts; 2939 } zdb_cb_t; 2940 2941 /* test if two DVA offsets from same vdev are within the same metaslab */ 2942 static boolean_t 2943 same_metaslab(spa_t *spa, uint64_t vdev, uint64_t off1, uint64_t off2) 2944 { 2945 vdev_t *vd = vdev_lookup_top(spa, vdev); 2946 uint64_t ms_shift = vd->vdev_ms_shift; 2947 2948 return ((off1 >> ms_shift) == (off2 >> ms_shift)); 2949 } 2950 2951 static void 2952 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2953 dmu_object_type_t type) 2954 { 2955 uint64_t refcnt = 0; 2956 2957 ASSERT(type < ZDB_OT_TOTAL); 2958 2959 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2960 return; 2961 2962 spa_config_enter(zcb->zcb_spa, SCL_CONFIG, FTAG, RW_READER); 2963 2964 for (int i = 0; i < 4; i++) { 2965 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2966 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2967 int equal; 2968 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2969 2970 zb->zb_asize += BP_GET_ASIZE(bp); 2971 zb->zb_lsize += BP_GET_LSIZE(bp); 2972 zb->zb_psize += BP_GET_PSIZE(bp); 2973 zb->zb_count++; 2974 2975 /* 2976 * The histogram is only big enough to record blocks up to 2977 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2978 * "other", bucket. 2979 */ 2980 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2981 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2982 zb->zb_psize_histogram[idx]++; 2983 2984 zb->zb_gangs += BP_COUNT_GANG(bp); 2985 2986 switch (BP_GET_NDVAS(bp)) { 2987 case 2: 2988 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2989 DVA_GET_VDEV(&bp->blk_dva[1])) { 2990 zb->zb_ditto_samevdev++; 2991 2992 if (same_metaslab(zcb->zcb_spa, 2993 DVA_GET_VDEV(&bp->blk_dva[0]), 2994 DVA_GET_OFFSET(&bp->blk_dva[0]), 2995 DVA_GET_OFFSET(&bp->blk_dva[1]))) 2996 zb->zb_ditto_same_ms++; 2997 } 2998 break; 2999 case 3: 3000 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 3001 DVA_GET_VDEV(&bp->blk_dva[1])) + 3002 (DVA_GET_VDEV(&bp->blk_dva[0]) == 3003 DVA_GET_VDEV(&bp->blk_dva[2])) + 3004 (DVA_GET_VDEV(&bp->blk_dva[1]) == 3005 DVA_GET_VDEV(&bp->blk_dva[2])); 3006 if (equal != 0) { 3007 zb->zb_ditto_samevdev++; 3008 3009 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 3010 DVA_GET_VDEV(&bp->blk_dva[1]) && 3011 same_metaslab(zcb->zcb_spa, 3012 DVA_GET_VDEV(&bp->blk_dva[0]), 3013 DVA_GET_OFFSET(&bp->blk_dva[0]), 3014 DVA_GET_OFFSET(&bp->blk_dva[1]))) 3015 zb->zb_ditto_same_ms++; 3016 else if (DVA_GET_VDEV(&bp->blk_dva[0]) == 3017 DVA_GET_VDEV(&bp->blk_dva[2]) && 3018 same_metaslab(zcb->zcb_spa, 3019 DVA_GET_VDEV(&bp->blk_dva[0]), 3020 DVA_GET_OFFSET(&bp->blk_dva[0]), 3021 DVA_GET_OFFSET(&bp->blk_dva[2]))) 3022 zb->zb_ditto_same_ms++; 3023 else if (DVA_GET_VDEV(&bp->blk_dva[1]) == 3024 DVA_GET_VDEV(&bp->blk_dva[2]) && 3025 same_metaslab(zcb->zcb_spa, 3026 DVA_GET_VDEV(&bp->blk_dva[1]), 3027 DVA_GET_OFFSET(&bp->blk_dva[1]), 3028 DVA_GET_OFFSET(&bp->blk_dva[2]))) 3029 zb->zb_ditto_same_ms++; 3030 } 3031 break; 3032 } 3033 } 3034 3035 spa_config_exit(zcb->zcb_spa, SCL_CONFIG, FTAG); 3036 3037 if (BP_IS_EMBEDDED(bp)) { 3038 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 3039 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 3040 [BPE_GET_PSIZE(bp)]++; 3041 return; 3042 } 3043 3044 if (dump_opt['L']) 3045 return; 3046 3047 if (BP_GET_DEDUP(bp)) { 3048 ddt_t *ddt; 3049 ddt_entry_t *dde; 3050 3051 ddt = ddt_select(zcb->zcb_spa, bp); 3052 ddt_enter(ddt); 3053 dde = ddt_lookup(ddt, bp, B_FALSE); 3054 3055 if (dde == NULL) { 3056 refcnt = 0; 3057 } else { 3058 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 3059 ddt_phys_decref(ddp); 3060 refcnt = ddp->ddp_refcnt; 3061 if (ddt_phys_total_refcnt(dde) == 0) 3062 ddt_remove(ddt, dde); 3063 } 3064 ddt_exit(ddt); 3065 } 3066 3067 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 3068 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa), 3069 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 3070 } 3071 3072 static void 3073 zdb_blkptr_done(zio_t *zio) 3074 { 3075 spa_t *spa = zio->io_spa; 3076 blkptr_t *bp = zio->io_bp; 3077 int ioerr = zio->io_error; 3078 zdb_cb_t *zcb = zio->io_private; 3079 zbookmark_phys_t *zb = &zio->io_bookmark; 3080 3081 abd_free(zio->io_abd); 3082 3083 mutex_enter(&spa->spa_scrub_lock); 3084 spa->spa_load_verify_ios--; 3085 cv_broadcast(&spa->spa_scrub_io_cv); 3086 3087 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 3088 char blkbuf[BP_SPRINTF_LEN]; 3089 3090 zcb->zcb_haderrors = 1; 3091 zcb->zcb_errors[ioerr]++; 3092 3093 if (dump_opt['b'] >= 2) 3094 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3095 else 3096 blkbuf[0] = '\0'; 3097 3098 (void) printf("zdb_blkptr_cb: " 3099 "Got error %d reading " 3100 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 3101 ioerr, 3102 (u_longlong_t)zb->zb_objset, 3103 (u_longlong_t)zb->zb_object, 3104 (u_longlong_t)zb->zb_level, 3105 (u_longlong_t)zb->zb_blkid, 3106 blkbuf); 3107 } 3108 mutex_exit(&spa->spa_scrub_lock); 3109 } 3110 3111 static int 3112 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 3113 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3114 { 3115 zdb_cb_t *zcb = arg; 3116 dmu_object_type_t type; 3117 boolean_t is_metadata; 3118 3119 if (bp == NULL) 3120 return (0); 3121 3122 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 3123 char blkbuf[BP_SPRINTF_LEN]; 3124 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3125 (void) printf("objset %llu object %llu " 3126 "level %lld offset 0x%llx %s\n", 3127 (u_longlong_t)zb->zb_objset, 3128 (u_longlong_t)zb->zb_object, 3129 (longlong_t)zb->zb_level, 3130 (u_longlong_t)blkid2offset(dnp, bp, zb), 3131 blkbuf); 3132 } 3133 3134 if (BP_IS_HOLE(bp)) 3135 return (0); 3136 3137 type = BP_GET_TYPE(bp); 3138 3139 zdb_count_block(zcb, zilog, bp, 3140 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 3141 3142 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 3143 3144 if (!BP_IS_EMBEDDED(bp) && 3145 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 3146 size_t size = BP_GET_PSIZE(bp); 3147 abd_t *abd = abd_alloc(size, B_FALSE); 3148 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 3149 3150 /* If it's an intent log block, failure is expected. */ 3151 if (zb->zb_level == ZB_ZIL_LEVEL) 3152 flags |= ZIO_FLAG_SPECULATIVE; 3153 3154 mutex_enter(&spa->spa_scrub_lock); 3155 while (spa->spa_load_verify_ios > max_inflight) 3156 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 3157 spa->spa_load_verify_ios++; 3158 mutex_exit(&spa->spa_scrub_lock); 3159 3160 zio_nowait(zio_read(NULL, spa, bp, abd, size, 3161 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 3162 } 3163 3164 zcb->zcb_readfails = 0; 3165 3166 /* only call gethrtime() every 100 blocks */ 3167 static int iters; 3168 if (++iters > 100) 3169 iters = 0; 3170 else 3171 return (0); 3172 3173 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 3174 uint64_t now = gethrtime(); 3175 char buf[10]; 3176 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 3177 int kb_per_sec = 3178 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 3179 int sec_remaining = 3180 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 3181 3182 /* make sure nicenum has enough space */ 3183 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ); 3184 3185 zfs_nicenum(bytes, buf, sizeof (buf)); 3186 (void) fprintf(stderr, 3187 "\r%5s completed (%4dMB/s) " 3188 "estimated time remaining: %uhr %02umin %02usec ", 3189 buf, kb_per_sec / 1024, 3190 sec_remaining / 60 / 60, 3191 sec_remaining / 60 % 60, 3192 sec_remaining % 60); 3193 3194 zcb->zcb_lastprint = now; 3195 } 3196 3197 return (0); 3198 } 3199 3200 static void 3201 zdb_leak(void *arg, uint64_t start, uint64_t size) 3202 { 3203 vdev_t *vd = arg; 3204 3205 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 3206 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 3207 } 3208 3209 static metaslab_ops_t zdb_metaslab_ops = { 3210 NULL /* alloc */ 3211 }; 3212 3213 typedef int (*zdb_log_sm_cb_t)(spa_t *spa, space_map_entry_t *sme, 3214 uint64_t txg, void *arg); 3215 3216 typedef struct unflushed_iter_cb_arg { 3217 spa_t *uic_spa; 3218 uint64_t uic_txg; 3219 void *uic_arg; 3220 zdb_log_sm_cb_t uic_cb; 3221 } unflushed_iter_cb_arg_t; 3222 3223 static int 3224 iterate_through_spacemap_logs_cb(space_map_entry_t *sme, void *arg) 3225 { 3226 unflushed_iter_cb_arg_t *uic = arg; 3227 3228 return (uic->uic_cb(uic->uic_spa, sme, uic->uic_txg, uic->uic_arg)); 3229 } 3230 3231 static void 3232 iterate_through_spacemap_logs(spa_t *spa, zdb_log_sm_cb_t cb, void *arg) 3233 { 3234 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 3235 return; 3236 3237 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3238 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 3239 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) { 3240 space_map_t *sm = NULL; 3241 VERIFY0(space_map_open(&sm, spa_meta_objset(spa), 3242 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT)); 3243 3244 unflushed_iter_cb_arg_t uic = { 3245 .uic_spa = spa, 3246 .uic_txg = sls->sls_txg, 3247 .uic_arg = arg, 3248 .uic_cb = cb 3249 }; 3250 3251 VERIFY0(space_map_iterate(sm, space_map_length(sm), 3252 iterate_through_spacemap_logs_cb, &uic)); 3253 space_map_close(sm); 3254 } 3255 spa_config_exit(spa, SCL_CONFIG, FTAG); 3256 } 3257 3258 /* ARGSUSED */ 3259 static int 3260 load_unflushed_svr_segs_cb(spa_t *spa, space_map_entry_t *sme, 3261 uint64_t txg, void *arg) 3262 { 3263 spa_vdev_removal_t *svr = arg; 3264 3265 uint64_t offset = sme->sme_offset; 3266 uint64_t size = sme->sme_run; 3267 3268 /* skip vdevs we don't care about */ 3269 if (sme->sme_vdev != svr->svr_vdev_id) 3270 return (0); 3271 3272 vdev_t *vd = vdev_lookup_top(spa, sme->sme_vdev); 3273 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 3274 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 3275 3276 if (txg < metaslab_unflushed_txg(ms)) 3277 return (0); 3278 3279 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3280 ASSERT(vim != NULL); 3281 if (offset >= vdev_indirect_mapping_max_offset(vim)) 3282 return (0); 3283 3284 if (sme->sme_type == SM_ALLOC) 3285 range_tree_add(svr->svr_allocd_segs, offset, size); 3286 else 3287 range_tree_remove(svr->svr_allocd_segs, offset, size); 3288 3289 return (0); 3290 } 3291 3292 static void 3293 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 3294 { 3295 ddt_bookmark_t ddb; 3296 ddt_entry_t dde; 3297 int error; 3298 3299 ASSERT(!dump_opt['L']); 3300 3301 bzero(&ddb, sizeof (ddb)); 3302 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 3303 blkptr_t blk; 3304 ddt_phys_t *ddp = dde.dde_phys; 3305 3306 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 3307 return; 3308 3309 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 3310 3311 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 3312 if (ddp->ddp_phys_birth == 0) 3313 continue; 3314 ddt_bp_create(ddb.ddb_checksum, 3315 &dde.dde_key, ddp, &blk); 3316 if (p == DDT_PHYS_DITTO) { 3317 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 3318 } else { 3319 zcb->zcb_dedup_asize += 3320 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 3321 zcb->zcb_dedup_blocks++; 3322 } 3323 } 3324 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 3325 ddt_enter(ddt); 3326 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 3327 ddt_exit(ddt); 3328 } 3329 3330 ASSERT(error == ENOENT); 3331 } 3332 3333 /* ARGSUSED */ 3334 static void 3335 claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset, 3336 uint64_t size, void *arg) 3337 { 3338 /* 3339 * This callback was called through a remap from 3340 * a device being removed. Therefore, the vdev that 3341 * this callback is applied to is a concrete 3342 * vdev. 3343 */ 3344 ASSERT(vdev_is_concrete(vd)); 3345 3346 VERIFY0(metaslab_claim_impl(vd, offset, size, 3347 spa_min_claim_txg(vd->vdev_spa))); 3348 } 3349 3350 static void 3351 claim_segment_cb(void *arg, uint64_t offset, uint64_t size) 3352 { 3353 vdev_t *vd = arg; 3354 3355 vdev_indirect_ops.vdev_op_remap(vd, offset, size, 3356 claim_segment_impl_cb, NULL); 3357 } 3358 3359 /* 3360 * After accounting for all allocated blocks that are directly referenced, 3361 * we might have missed a reference to a block from a partially complete 3362 * (and thus unused) indirect mapping object. We perform a secondary pass 3363 * through the metaslabs we have already mapped and claim the destination 3364 * blocks. 3365 */ 3366 static void 3367 zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb) 3368 { 3369 if (dump_opt['L']) 3370 return; 3371 3372 if (spa->spa_vdev_removal == NULL) 3373 return; 3374 3375 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3376 3377 spa_vdev_removal_t *svr = spa->spa_vdev_removal; 3378 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id); 3379 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3380 3381 ASSERT0(range_tree_space(svr->svr_allocd_segs)); 3382 3383 range_tree_t *allocs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0); 3384 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) { 3385 metaslab_t *msp = vd->vdev_ms[msi]; 3386 3387 if (msp->ms_start >= vdev_indirect_mapping_max_offset(vim)) 3388 break; 3389 3390 ASSERT0(range_tree_space(allocs)); 3391 if (msp->ms_sm != NULL) 3392 VERIFY0(space_map_load(msp->ms_sm, allocs, SM_ALLOC)); 3393 range_tree_vacate(allocs, range_tree_add, svr->svr_allocd_segs); 3394 } 3395 range_tree_destroy(allocs); 3396 3397 iterate_through_spacemap_logs(spa, load_unflushed_svr_segs_cb, svr); 3398 3399 /* 3400 * Clear everything past what has been synced, 3401 * because we have not allocated mappings for 3402 * it yet. 3403 */ 3404 range_tree_clear(svr->svr_allocd_segs, 3405 vdev_indirect_mapping_max_offset(vim), 3406 vd->vdev_asize - vdev_indirect_mapping_max_offset(vim)); 3407 3408 zcb->zcb_removing_size += range_tree_space(svr->svr_allocd_segs); 3409 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd); 3410 3411 spa_config_exit(spa, SCL_CONFIG, FTAG); 3412 } 3413 3414 /* ARGSUSED */ 3415 static int 3416 increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 3417 { 3418 zdb_cb_t *zcb = arg; 3419 spa_t *spa = zcb->zcb_spa; 3420 vdev_t *vd; 3421 const dva_t *dva = &bp->blk_dva[0]; 3422 3423 ASSERT(!dump_opt['L']); 3424 ASSERT3U(BP_GET_NDVAS(bp), ==, 1); 3425 3426 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); 3427 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva)); 3428 ASSERT3P(vd, !=, NULL); 3429 spa_config_exit(spa, SCL_VDEV, FTAG); 3430 3431 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0); 3432 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL); 3433 3434 vdev_indirect_mapping_increment_obsolete_count( 3435 vd->vdev_indirect_mapping, 3436 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva), 3437 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 3438 3439 return (0); 3440 } 3441 3442 static uint32_t * 3443 zdb_load_obsolete_counts(vdev_t *vd) 3444 { 3445 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3446 spa_t *spa = vd->vdev_spa; 3447 spa_condensing_indirect_phys_t *scip = 3448 &spa->spa_condensing_indirect_phys; 3449 uint32_t *counts; 3450 3451 EQUIV(vdev_obsolete_sm_object(vd) != 0, vd->vdev_obsolete_sm != NULL); 3452 counts = vdev_indirect_mapping_load_obsolete_counts(vim); 3453 if (vd->vdev_obsolete_sm != NULL) { 3454 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 3455 vd->vdev_obsolete_sm); 3456 } 3457 if (scip->scip_vdev == vd->vdev_id && 3458 scip->scip_prev_obsolete_sm_object != 0) { 3459 space_map_t *prev_obsolete_sm = NULL; 3460 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset, 3461 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0)); 3462 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 3463 prev_obsolete_sm); 3464 space_map_close(prev_obsolete_sm); 3465 } 3466 return (counts); 3467 } 3468 3469 typedef struct checkpoint_sm_exclude_entry_arg { 3470 vdev_t *cseea_vd; 3471 uint64_t cseea_checkpoint_size; 3472 } checkpoint_sm_exclude_entry_arg_t; 3473 3474 static int 3475 checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg) 3476 { 3477 checkpoint_sm_exclude_entry_arg_t *cseea = arg; 3478 vdev_t *vd = cseea->cseea_vd; 3479 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 3480 uint64_t end = sme->sme_offset + sme->sme_run; 3481 3482 ASSERT(sme->sme_type == SM_FREE); 3483 3484 /* 3485 * Since the vdev_checkpoint_sm exists in the vdev level 3486 * and the ms_sm space maps exist in the metaslab level, 3487 * an entry in the checkpoint space map could theoretically 3488 * cross the boundaries of the metaslab that it belongs. 3489 * 3490 * In reality, because of the way that we populate and 3491 * manipulate the checkpoint's space maps currently, 3492 * there shouldn't be any entries that cross metaslabs. 3493 * Hence the assertion below. 3494 * 3495 * That said, there is no fundamental requirement that 3496 * the checkpoint's space map entries should not cross 3497 * metaslab boundaries. So if needed we could add code 3498 * that handles metaslab-crossing segments in the future. 3499 */ 3500 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 3501 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 3502 3503 /* 3504 * By removing the entry from the allocated segments we 3505 * also verify that the entry is there to begin with. 3506 */ 3507 mutex_enter(&ms->ms_lock); 3508 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run); 3509 mutex_exit(&ms->ms_lock); 3510 3511 cseea->cseea_checkpoint_size += sme->sme_run; 3512 return (0); 3513 } 3514 3515 static void 3516 zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb) 3517 { 3518 spa_t *spa = vd->vdev_spa; 3519 space_map_t *checkpoint_sm = NULL; 3520 uint64_t checkpoint_sm_obj; 3521 3522 /* 3523 * If there is no vdev_top_zap, we are in a pool whose 3524 * version predates the pool checkpoint feature. 3525 */ 3526 if (vd->vdev_top_zap == 0) 3527 return; 3528 3529 /* 3530 * If there is no reference of the vdev_checkpoint_sm in 3531 * the vdev_top_zap, then one of the following scenarios 3532 * is true: 3533 * 3534 * 1] There is no checkpoint 3535 * 2] There is a checkpoint, but no checkpointed blocks 3536 * have been freed yet 3537 * 3] The current vdev is indirect 3538 * 3539 * In these cases we return immediately. 3540 */ 3541 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 3542 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 3543 return; 3544 3545 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 3546 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1, 3547 &checkpoint_sm_obj)); 3548 3549 checkpoint_sm_exclude_entry_arg_t cseea; 3550 cseea.cseea_vd = vd; 3551 cseea.cseea_checkpoint_size = 0; 3552 3553 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 3554 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 3555 3556 VERIFY0(space_map_iterate(checkpoint_sm, 3557 space_map_length(checkpoint_sm), 3558 checkpoint_sm_exclude_entry_cb, &cseea)); 3559 space_map_close(checkpoint_sm); 3560 3561 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size; 3562 } 3563 3564 static void 3565 zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb) 3566 { 3567 ASSERT(!dump_opt['L']); 3568 3569 vdev_t *rvd = spa->spa_root_vdev; 3570 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 3571 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id); 3572 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb); 3573 } 3574 } 3575 3576 static int 3577 count_unflushed_space_cb(spa_t *spa, space_map_entry_t *sme, 3578 uint64_t txg, void *arg) 3579 { 3580 int64_t *ualloc_space = arg; 3581 uint64_t offset = sme->sme_offset; 3582 uint64_t vdev_id = sme->sme_vdev; 3583 3584 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 3585 if (!vdev_is_concrete(vd)) 3586 return (0); 3587 3588 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 3589 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 3590 3591 if (txg < metaslab_unflushed_txg(ms)) 3592 return (0); 3593 3594 if (sme->sme_type == SM_ALLOC) 3595 *ualloc_space += sme->sme_run; 3596 else 3597 *ualloc_space -= sme->sme_run; 3598 3599 return (0); 3600 } 3601 3602 static int64_t 3603 get_unflushed_alloc_space(spa_t *spa) 3604 { 3605 if (dump_opt['L']) 3606 return (0); 3607 3608 int64_t ualloc_space = 0; 3609 iterate_through_spacemap_logs(spa, count_unflushed_space_cb, 3610 &ualloc_space); 3611 return (ualloc_space); 3612 } 3613 3614 static int 3615 load_unflushed_cb(spa_t *spa, space_map_entry_t *sme, uint64_t txg, void *arg) 3616 { 3617 maptype_t *uic_maptype = arg; 3618 uint64_t offset = sme->sme_offset; 3619 uint64_t size = sme->sme_run; 3620 uint64_t vdev_id = sme->sme_vdev; 3621 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 3622 3623 /* skip indirect vdevs */ 3624 if (!vdev_is_concrete(vd)) 3625 return (0); 3626 3627 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 3628 3629 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 3630 ASSERT(*uic_maptype == SM_ALLOC || *uic_maptype == SM_FREE); 3631 3632 if (txg < metaslab_unflushed_txg(ms)) 3633 return (0); 3634 3635 if (*uic_maptype == sme->sme_type) 3636 range_tree_add(ms->ms_allocatable, offset, size); 3637 else 3638 range_tree_remove(ms->ms_allocatable, offset, size); 3639 3640 return (0); 3641 } 3642 3643 static void 3644 load_unflushed_to_ms_allocatables(spa_t *spa, maptype_t maptype) 3645 { 3646 iterate_through_spacemap_logs(spa, load_unflushed_cb, &maptype); 3647 } 3648 3649 static void 3650 load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype) 3651 { 3652 vdev_t *rvd = spa->spa_root_vdev; 3653 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 3654 vdev_t *vd = rvd->vdev_child[i]; 3655 3656 ASSERT3U(i, ==, vd->vdev_id); 3657 3658 if (vd->vdev_ops == &vdev_indirect_ops) 3659 continue; 3660 3661 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 3662 metaslab_t *msp = vd->vdev_ms[m]; 3663 3664 (void) fprintf(stderr, 3665 "\rloading concrete vdev %llu, " 3666 "metaslab %llu of %llu ...", 3667 (longlong_t)vd->vdev_id, 3668 (longlong_t)msp->ms_id, 3669 (longlong_t)vd->vdev_ms_count); 3670 3671 mutex_enter(&msp->ms_lock); 3672 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 3673 3674 /* 3675 * We don't want to spend the CPU manipulating the 3676 * size-ordered tree, so clear the range_tree ops. 3677 */ 3678 msp->ms_allocatable->rt_ops = NULL; 3679 3680 if (msp->ms_sm != NULL) { 3681 VERIFY0(space_map_load(msp->ms_sm, 3682 msp->ms_allocatable, maptype)); 3683 } 3684 if (!msp->ms_loaded) 3685 msp->ms_loaded = B_TRUE; 3686 mutex_exit(&msp->ms_lock); 3687 } 3688 } 3689 3690 load_unflushed_to_ms_allocatables(spa, maptype); 3691 } 3692 3693 /* 3694 * vm_idxp is an in-out parameter which (for indirect vdevs) is the 3695 * index in vim_entries that has the first entry in this metaslab. 3696 * On return, it will be set to the first entry after this metaslab. 3697 */ 3698 static void 3699 load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp, 3700 uint64_t *vim_idxp) 3701 { 3702 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3703 3704 mutex_enter(&msp->ms_lock); 3705 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 3706 3707 /* 3708 * We don't want to spend the CPU manipulating the 3709 * size-ordered tree, so clear the range_tree ops. 3710 */ 3711 msp->ms_allocatable->rt_ops = NULL; 3712 3713 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim); 3714 (*vim_idxp)++) { 3715 vdev_indirect_mapping_entry_phys_t *vimep = 3716 &vim->vim_entries[*vim_idxp]; 3717 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 3718 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst); 3719 ASSERT3U(ent_offset, >=, msp->ms_start); 3720 if (ent_offset >= msp->ms_start + msp->ms_size) 3721 break; 3722 3723 /* 3724 * Mappings do not cross metaslab boundaries, 3725 * because we create them by walking the metaslabs. 3726 */ 3727 ASSERT3U(ent_offset + ent_len, <=, 3728 msp->ms_start + msp->ms_size); 3729 range_tree_add(msp->ms_allocatable, ent_offset, ent_len); 3730 } 3731 3732 if (!msp->ms_loaded) 3733 msp->ms_loaded = B_TRUE; 3734 mutex_exit(&msp->ms_lock); 3735 } 3736 3737 static void 3738 zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb) 3739 { 3740 ASSERT(!dump_opt['L']); 3741 3742 vdev_t *rvd = spa->spa_root_vdev; 3743 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 3744 vdev_t *vd = rvd->vdev_child[c]; 3745 3746 ASSERT3U(c, ==, vd->vdev_id); 3747 3748 if (vd->vdev_ops != &vdev_indirect_ops) 3749 continue; 3750 3751 /* 3752 * Note: we don't check for mapping leaks on 3753 * removing vdevs because their ms_allocatable's 3754 * are used to look for leaks in allocated space. 3755 */ 3756 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd); 3757 3758 /* 3759 * Normally, indirect vdevs don't have any 3760 * metaslabs. We want to set them up for 3761 * zio_claim(). 3762 */ 3763 VERIFY0(vdev_metaslab_init(vd, 0)); 3764 3765 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3766 uint64_t vim_idx = 0; 3767 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 3768 3769 (void) fprintf(stderr, 3770 "\rloading indirect vdev %llu, " 3771 "metaslab %llu of %llu ...", 3772 (longlong_t)vd->vdev_id, 3773 (longlong_t)vd->vdev_ms[m]->ms_id, 3774 (longlong_t)vd->vdev_ms_count); 3775 3776 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m], 3777 &vim_idx); 3778 } 3779 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim)); 3780 } 3781 } 3782 3783 static void 3784 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 3785 { 3786 zcb->zcb_spa = spa; 3787 3788 if (dump_opt['L']) 3789 return; 3790 3791 dsl_pool_t *dp = spa->spa_dsl_pool; 3792 vdev_t *rvd = spa->spa_root_vdev; 3793 3794 /* 3795 * We are going to be changing the meaning of the metaslab's 3796 * ms_allocatable. Ensure that the allocator doesn't try to 3797 * use the tree. 3798 */ 3799 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 3800 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 3801 3802 zcb->zcb_vd_obsolete_counts = 3803 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *), 3804 UMEM_NOFAIL); 3805 3806 /* 3807 * For leak detection, we overload the ms_allocatable trees 3808 * to contain allocated segments instead of free segments. 3809 * As a result, we can't use the normal metaslab_load/unload 3810 * interfaces. 3811 */ 3812 zdb_leak_init_prepare_indirect_vdevs(spa, zcb); 3813 load_concrete_ms_allocatable_trees(spa, SM_ALLOC); 3814 3815 /* 3816 * On load_concrete_ms_allocatable_trees() we loaded all the 3817 * allocated entries from the ms_sm to the ms_allocatable for 3818 * each metaslab. If the pool has a checkpoint or is in the 3819 * middle of discarding a checkpoint, some of these blocks 3820 * may have been freed but their ms_sm may not have been 3821 * updated because they are referenced by the checkpoint. In 3822 * order to avoid false-positives during leak-detection, we 3823 * go through the vdev's checkpoint space map and exclude all 3824 * its entries from their relevant ms_allocatable. 3825 * 3826 * We also aggregate the space held by the checkpoint and add 3827 * it to zcb_checkpoint_size. 3828 * 3829 * Note that at this point we are also verifying that all the 3830 * entries on the checkpoint_sm are marked as allocated in 3831 * the ms_sm of their relevant metaslab. 3832 * [see comment in checkpoint_sm_exclude_entry_cb()] 3833 */ 3834 zdb_leak_init_exclude_checkpoint(spa, zcb); 3835 ASSERT3U(zcb->zcb_checkpoint_size, ==, spa_get_checkpoint_space(spa)); 3836 3837 /* for cleaner progress output */ 3838 (void) fprintf(stderr, "\n"); 3839 3840 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 3841 ASSERT(spa_feature_is_enabled(spa, 3842 SPA_FEATURE_DEVICE_REMOVAL)); 3843 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj, 3844 increment_indirect_mapping_cb, zcb, NULL); 3845 } 3846 3847 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3848 zdb_ddt_leak_init(spa, zcb); 3849 spa_config_exit(spa, SCL_CONFIG, FTAG); 3850 } 3851 3852 static boolean_t 3853 zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb) 3854 { 3855 boolean_t leaks = B_FALSE; 3856 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 3857 uint64_t total_leaked = 0; 3858 3859 ASSERT(vim != NULL); 3860 3861 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 3862 vdev_indirect_mapping_entry_phys_t *vimep = 3863 &vim->vim_entries[i]; 3864 uint64_t obsolete_bytes = 0; 3865 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 3866 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 3867 3868 /* 3869 * This is not very efficient but it's easy to 3870 * verify correctness. 3871 */ 3872 for (uint64_t inner_offset = 0; 3873 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst); 3874 inner_offset += 1 << vd->vdev_ashift) { 3875 if (range_tree_contains(msp->ms_allocatable, 3876 offset + inner_offset, 1 << vd->vdev_ashift)) { 3877 obsolete_bytes += 1 << vd->vdev_ashift; 3878 } 3879 } 3880 3881 int64_t bytes_leaked = obsolete_bytes - 3882 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]; 3883 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=, 3884 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]); 3885 if (bytes_leaked != 0 && 3886 (vdev_obsolete_counts_are_precise(vd) || 3887 dump_opt['d'] >= 5)) { 3888 (void) printf("obsolete indirect mapping count " 3889 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n", 3890 (u_longlong_t)vd->vdev_id, 3891 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 3892 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 3893 (u_longlong_t)bytes_leaked); 3894 } 3895 total_leaked += ABS(bytes_leaked); 3896 } 3897 3898 if (!vdev_obsolete_counts_are_precise(vd) && total_leaked > 0) { 3899 int pct_leaked = total_leaked * 100 / 3900 vdev_indirect_mapping_bytes_mapped(vim); 3901 (void) printf("cannot verify obsolete indirect mapping " 3902 "counts of vdev %llu because precise feature was not " 3903 "enabled when it was removed: %d%% (%llx bytes) of mapping" 3904 "unreferenced\n", 3905 (u_longlong_t)vd->vdev_id, pct_leaked, 3906 (u_longlong_t)total_leaked); 3907 } else if (total_leaked > 0) { 3908 (void) printf("obsolete indirect mapping count mismatch " 3909 "for vdev %llu -- %llx total bytes mismatched\n", 3910 (u_longlong_t)vd->vdev_id, 3911 (u_longlong_t)total_leaked); 3912 leaks |= B_TRUE; 3913 } 3914 3915 vdev_indirect_mapping_free_obsolete_counts(vim, 3916 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 3917 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL; 3918 3919 return (leaks); 3920 } 3921 3922 static boolean_t 3923 zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb) 3924 { 3925 if (dump_opt['L']) 3926 return (B_FALSE); 3927 3928 boolean_t leaks = B_FALSE; 3929 3930 vdev_t *rvd = spa->spa_root_vdev; 3931 for (unsigned c = 0; c < rvd->vdev_children; c++) { 3932 vdev_t *vd = rvd->vdev_child[c]; 3933 #if DEBUG 3934 metaslab_group_t *mg = vd->vdev_mg; 3935 #endif 3936 3937 if (zcb->zcb_vd_obsolete_counts[c] != NULL) { 3938 leaks |= zdb_check_for_obsolete_leaks(vd, zcb); 3939 } 3940 3941 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 3942 metaslab_t *msp = vd->vdev_ms[m]; 3943 ASSERT3P(mg, ==, msp->ms_group); 3944 3945 /* 3946 * ms_allocatable has been overloaded 3947 * to contain allocated segments. Now that 3948 * we finished traversing all blocks, any 3949 * block that remains in the ms_allocatable 3950 * represents an allocated block that we 3951 * did not claim during the traversal. 3952 * Claimed blocks would have been removed 3953 * from the ms_allocatable. For indirect 3954 * vdevs, space remaining in the tree 3955 * represents parts of the mapping that are 3956 * not referenced, which is not a bug. 3957 */ 3958 if (vd->vdev_ops == &vdev_indirect_ops) { 3959 range_tree_vacate(msp->ms_allocatable, 3960 NULL, NULL); 3961 } else { 3962 range_tree_vacate(msp->ms_allocatable, 3963 zdb_leak, vd); 3964 } 3965 if (msp->ms_loaded) { 3966 msp->ms_loaded = B_FALSE; 3967 } 3968 } 3969 3970 } 3971 3972 umem_free(zcb->zcb_vd_obsolete_counts, 3973 rvd->vdev_children * sizeof (uint32_t *)); 3974 zcb->zcb_vd_obsolete_counts = NULL; 3975 3976 return (leaks); 3977 } 3978 3979 /* ARGSUSED */ 3980 static int 3981 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 3982 { 3983 zdb_cb_t *zcb = arg; 3984 3985 if (dump_opt['b'] >= 5) { 3986 char blkbuf[BP_SPRINTF_LEN]; 3987 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3988 (void) printf("[%s] %s\n", 3989 "deferred free", blkbuf); 3990 } 3991 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 3992 return (0); 3993 } 3994 3995 static int 3996 dump_block_stats(spa_t *spa) 3997 { 3998 zdb_cb_t zcb; 3999 zdb_blkstats_t *zb, *tzb; 4000 uint64_t norm_alloc, norm_space, total_alloc, total_found; 4001 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 4002 TRAVERSE_NO_DECRYPT | TRAVERSE_HARD; 4003 boolean_t leaks = B_FALSE; 4004 int err; 4005 4006 bzero(&zcb, sizeof (zcb)); 4007 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 4008 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 4009 (dump_opt['c'] == 1) ? "metadata " : "", 4010 dump_opt['c'] ? "checksums " : "", 4011 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 4012 !dump_opt['L'] ? "nothing leaked " : ""); 4013 4014 /* 4015 * When leak detection is enabled we load all space maps as SM_ALLOC 4016 * maps, then traverse the pool claiming each block we discover. If 4017 * the pool is perfectly consistent, the segment trees will be empty 4018 * when we're done. Anything left over is a leak; any block we can't 4019 * claim (because it's not part of any space map) is a double 4020 * allocation, reference to a freed block, or an unclaimed log block. 4021 * 4022 * When leak detection is disabled (-L option) we still traverse the 4023 * pool claiming each block we discover, but we skip opening any space 4024 * maps. 4025 */ 4026 bzero(&zcb, sizeof (zdb_cb_t)); 4027 zdb_leak_init(spa, &zcb); 4028 4029 /* 4030 * If there's a deferred-free bplist, process that first. 4031 */ 4032 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 4033 count_block_cb, &zcb, NULL); 4034 4035 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 4036 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 4037 count_block_cb, &zcb, NULL); 4038 } 4039 4040 zdb_claim_removing(spa, &zcb); 4041 4042 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 4043 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 4044 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 4045 &zcb, NULL)); 4046 } 4047 4048 if (dump_opt['c'] > 1) 4049 flags |= TRAVERSE_PREFETCH_DATA; 4050 4051 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 4052 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_special_class(spa)); 4053 zcb.zcb_totalasize += metaslab_class_get_alloc(spa_dedup_class(spa)); 4054 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 4055 err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 4056 4057 /* 4058 * If we've traversed the data blocks then we need to wait for those 4059 * I/Os to complete. We leverage "The Godfather" zio to wait on 4060 * all async I/Os to complete. 4061 */ 4062 if (dump_opt['c']) { 4063 for (int i = 0; i < max_ncpus; i++) { 4064 (void) zio_wait(spa->spa_async_zio_root[i]); 4065 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 4066 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 4067 ZIO_FLAG_GODFATHER); 4068 } 4069 } 4070 4071 /* 4072 * Done after zio_wait() since zcb_haderrors is modified in 4073 * zdb_blkptr_done() 4074 */ 4075 zcb.zcb_haderrors |= err; 4076 4077 if (zcb.zcb_haderrors) { 4078 (void) printf("\nError counts:\n\n"); 4079 (void) printf("\t%5s %s\n", "errno", "count"); 4080 for (int e = 0; e < 256; e++) { 4081 if (zcb.zcb_errors[e] != 0) { 4082 (void) printf("\t%5d %llu\n", 4083 e, (u_longlong_t)zcb.zcb_errors[e]); 4084 } 4085 } 4086 } 4087 4088 /* 4089 * Report any leaked segments. 4090 */ 4091 leaks |= zdb_leak_fini(spa, &zcb); 4092 4093 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 4094 4095 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 4096 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 4097 4098 total_alloc = norm_alloc + 4099 metaslab_class_get_alloc(spa_log_class(spa)) + 4100 metaslab_class_get_alloc(spa_special_class(spa)) + 4101 metaslab_class_get_alloc(spa_dedup_class(spa)) + 4102 get_unflushed_alloc_space(spa); 4103 total_found = tzb->zb_asize - zcb.zcb_dedup_asize + 4104 zcb.zcb_removing_size + zcb.zcb_checkpoint_size; 4105 4106 if (total_found == total_alloc && !dump_opt['L']) { 4107 (void) printf("\n\tNo leaks (block sum matches space" 4108 " maps exactly)\n"); 4109 } else if (!dump_opt['L']) { 4110 (void) printf("block traversal size %llu != alloc %llu " 4111 "(%s %lld)\n", 4112 (u_longlong_t)total_found, 4113 (u_longlong_t)total_alloc, 4114 (dump_opt['L']) ? "unreachable" : "leaked", 4115 (longlong_t)(total_alloc - total_found)); 4116 leaks = B_TRUE; 4117 } 4118 4119 if (tzb->zb_count == 0) 4120 return (2); 4121 4122 (void) printf("\n"); 4123 (void) printf("\t%-16s %14llu\n", "bp count:", 4124 (u_longlong_t)tzb->zb_count); 4125 (void) printf("\t%-16s %14llu\n", "ganged count:", 4126 (longlong_t)tzb->zb_gangs); 4127 (void) printf("\t%-16s %14llu avg: %6llu\n", "bp logical:", 4128 (u_longlong_t)tzb->zb_lsize, 4129 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 4130 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 4131 "bp physical:", (u_longlong_t)tzb->zb_psize, 4132 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 4133 (double)tzb->zb_lsize / tzb->zb_psize); 4134 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 4135 "bp allocated:", (u_longlong_t)tzb->zb_asize, 4136 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 4137 (double)tzb->zb_lsize / tzb->zb_asize); 4138 (void) printf("\t%-16s %14llu ref>1: %6llu deduplication: %6.2f\n", 4139 "bp deduped:", (u_longlong_t)zcb.zcb_dedup_asize, 4140 (u_longlong_t)zcb.zcb_dedup_blocks, 4141 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 4142 (void) printf("\t%-16s %14llu used: %5.2f%%\n", "Normal class:", 4143 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 4144 4145 if (spa_special_class(spa)->mc_rotor != NULL) { 4146 uint64_t alloc = metaslab_class_get_alloc( 4147 spa_special_class(spa)); 4148 uint64_t space = metaslab_class_get_space( 4149 spa_special_class(spa)); 4150 4151 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 4152 "Special class", (u_longlong_t)alloc, 4153 100.0 * alloc / space); 4154 } 4155 4156 if (spa_dedup_class(spa)->mc_rotor != NULL) { 4157 uint64_t alloc = metaslab_class_get_alloc( 4158 spa_dedup_class(spa)); 4159 uint64_t space = metaslab_class_get_space( 4160 spa_dedup_class(spa)); 4161 4162 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 4163 "Dedup class", (u_longlong_t)alloc, 4164 100.0 * alloc / space); 4165 } 4166 4167 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 4168 if (zcb.zcb_embedded_blocks[i] == 0) 4169 continue; 4170 (void) printf("\n"); 4171 (void) printf("\tadditional, non-pointer bps of type %u: " 4172 "%10llu\n", 4173 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 4174 4175 if (dump_opt['b'] >= 3) { 4176 (void) printf("\t number of (compressed) bytes: " 4177 "number of bps\n"); 4178 dump_histogram(zcb.zcb_embedded_histogram[i], 4179 sizeof (zcb.zcb_embedded_histogram[i]) / 4180 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 4181 } 4182 } 4183 4184 if (tzb->zb_ditto_samevdev != 0) { 4185 (void) printf("\tDittoed blocks on same vdev: %llu\n", 4186 (longlong_t)tzb->zb_ditto_samevdev); 4187 } 4188 if (tzb->zb_ditto_same_ms != 0) { 4189 (void) printf("\tDittoed blocks in same metaslab: %llu\n", 4190 (longlong_t)tzb->zb_ditto_same_ms); 4191 } 4192 4193 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) { 4194 vdev_t *vd = spa->spa_root_vdev->vdev_child[v]; 4195 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 4196 4197 if (vim == NULL) { 4198 continue; 4199 } 4200 4201 char mem[32]; 4202 zdb_nicenum(vdev_indirect_mapping_num_entries(vim), 4203 mem, vdev_indirect_mapping_size(vim)); 4204 4205 (void) printf("\tindirect vdev id %llu has %llu segments " 4206 "(%s in memory)\n", 4207 (longlong_t)vd->vdev_id, 4208 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem); 4209 } 4210 4211 if (dump_opt['b'] >= 2) { 4212 int l, t, level; 4213 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 4214 "\t avg\t comp\t%%Total\tType\n"); 4215 4216 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 4217 char csize[32], lsize[32], psize[32], asize[32]; 4218 char avg[32], gang[32]; 4219 const char *typename; 4220 4221 /* make sure nicenum has enough space */ 4222 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ); 4223 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 4224 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ); 4225 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 4226 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ); 4227 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ); 4228 4229 if (t < DMU_OT_NUMTYPES) 4230 typename = dmu_ot[t].ot_name; 4231 else 4232 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 4233 4234 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 4235 (void) printf("%6s\t%5s\t%5s\t%5s" 4236 "\t%5s\t%5s\t%6s\t%s\n", 4237 "-", 4238 "-", 4239 "-", 4240 "-", 4241 "-", 4242 "-", 4243 "-", 4244 typename); 4245 continue; 4246 } 4247 4248 for (l = ZB_TOTAL - 1; l >= -1; l--) { 4249 level = (l == -1 ? ZB_TOTAL : l); 4250 zb = &zcb.zcb_type[level][t]; 4251 4252 if (zb->zb_asize == 0) 4253 continue; 4254 4255 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 4256 continue; 4257 4258 if (level == 0 && zb->zb_asize == 4259 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 4260 continue; 4261 4262 zdb_nicenum(zb->zb_count, csize, 4263 sizeof (csize)); 4264 zdb_nicenum(zb->zb_lsize, lsize, 4265 sizeof (lsize)); 4266 zdb_nicenum(zb->zb_psize, psize, 4267 sizeof (psize)); 4268 zdb_nicenum(zb->zb_asize, asize, 4269 sizeof (asize)); 4270 zdb_nicenum(zb->zb_asize / zb->zb_count, avg, 4271 sizeof (avg)); 4272 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); 4273 4274 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 4275 "\t%5.2f\t%6.2f\t", 4276 csize, lsize, psize, asize, avg, 4277 (double)zb->zb_lsize / zb->zb_psize, 4278 100.0 * zb->zb_asize / tzb->zb_asize); 4279 4280 if (level == ZB_TOTAL) 4281 (void) printf("%s\n", typename); 4282 else 4283 (void) printf(" L%d %s\n", 4284 level, typename); 4285 4286 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 4287 (void) printf("\t number of ganged " 4288 "blocks: %s\n", gang); 4289 } 4290 4291 if (dump_opt['b'] >= 4) { 4292 (void) printf("psize " 4293 "(in 512-byte sectors): " 4294 "number of blocks\n"); 4295 dump_histogram(zb->zb_psize_histogram, 4296 PSIZE_HISTO_SIZE, 0); 4297 } 4298 } 4299 } 4300 } 4301 4302 (void) printf("\n"); 4303 4304 if (leaks) 4305 return (2); 4306 4307 if (zcb.zcb_haderrors) 4308 return (3); 4309 4310 return (0); 4311 } 4312 4313 typedef struct zdb_ddt_entry { 4314 ddt_key_t zdde_key; 4315 uint64_t zdde_ref_blocks; 4316 uint64_t zdde_ref_lsize; 4317 uint64_t zdde_ref_psize; 4318 uint64_t zdde_ref_dsize; 4319 avl_node_t zdde_node; 4320 } zdb_ddt_entry_t; 4321 4322 /* ARGSUSED */ 4323 static int 4324 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 4325 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 4326 { 4327 avl_tree_t *t = arg; 4328 avl_index_t where; 4329 zdb_ddt_entry_t *zdde, zdde_search; 4330 4331 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 4332 return (0); 4333 4334 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 4335 (void) printf("traversing objset %llu, %llu objects, " 4336 "%lu blocks so far\n", 4337 (u_longlong_t)zb->zb_objset, 4338 (u_longlong_t)BP_GET_FILL(bp), 4339 avl_numnodes(t)); 4340 } 4341 4342 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 4343 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 4344 return (0); 4345 4346 ddt_key_fill(&zdde_search.zdde_key, bp); 4347 4348 zdde = avl_find(t, &zdde_search, &where); 4349 4350 if (zdde == NULL) { 4351 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 4352 zdde->zdde_key = zdde_search.zdde_key; 4353 avl_insert(t, zdde, where); 4354 } 4355 4356 zdde->zdde_ref_blocks += 1; 4357 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 4358 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 4359 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 4360 4361 return (0); 4362 } 4363 4364 static void 4365 dump_simulated_ddt(spa_t *spa) 4366 { 4367 avl_tree_t t; 4368 void *cookie = NULL; 4369 zdb_ddt_entry_t *zdde; 4370 ddt_histogram_t ddh_total; 4371 ddt_stat_t dds_total; 4372 4373 bzero(&ddh_total, sizeof (ddh_total)); 4374 bzero(&dds_total, sizeof (dds_total)); 4375 avl_create(&t, ddt_entry_compare, 4376 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 4377 4378 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 4379 4380 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 4381 TRAVERSE_NO_DECRYPT, zdb_ddt_add_cb, &t); 4382 4383 spa_config_exit(spa, SCL_CONFIG, FTAG); 4384 4385 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 4386 ddt_stat_t dds; 4387 uint64_t refcnt = zdde->zdde_ref_blocks; 4388 ASSERT(refcnt != 0); 4389 4390 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 4391 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 4392 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 4393 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 4394 4395 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 4396 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 4397 dds.dds_ref_psize = zdde->zdde_ref_psize; 4398 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 4399 4400 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 4401 &dds, 0); 4402 4403 umem_free(zdde, sizeof (*zdde)); 4404 } 4405 4406 avl_destroy(&t); 4407 4408 ddt_histogram_stat(&dds_total, &ddh_total); 4409 4410 (void) printf("Simulated DDT histogram:\n"); 4411 4412 zpool_dump_ddt(&dds_total, &ddh_total); 4413 4414 dump_dedup_ratio(&dds_total); 4415 } 4416 4417 static int 4418 verify_device_removal_feature_counts(spa_t *spa) 4419 { 4420 uint64_t dr_feature_refcount = 0; 4421 uint64_t oc_feature_refcount = 0; 4422 uint64_t indirect_vdev_count = 0; 4423 uint64_t precise_vdev_count = 0; 4424 uint64_t obsolete_counts_object_count = 0; 4425 uint64_t obsolete_sm_count = 0; 4426 uint64_t obsolete_counts_count = 0; 4427 uint64_t scip_count = 0; 4428 uint64_t obsolete_bpobj_count = 0; 4429 int ret = 0; 4430 4431 spa_condensing_indirect_phys_t *scip = 4432 &spa->spa_condensing_indirect_phys; 4433 if (scip->scip_next_mapping_object != 0) { 4434 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev]; 4435 ASSERT(scip->scip_prev_obsolete_sm_object != 0); 4436 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops); 4437 4438 (void) printf("Condensing indirect vdev %llu: new mapping " 4439 "object %llu, prev obsolete sm %llu\n", 4440 (u_longlong_t)scip->scip_vdev, 4441 (u_longlong_t)scip->scip_next_mapping_object, 4442 (u_longlong_t)scip->scip_prev_obsolete_sm_object); 4443 if (scip->scip_prev_obsolete_sm_object != 0) { 4444 space_map_t *prev_obsolete_sm = NULL; 4445 VERIFY0(space_map_open(&prev_obsolete_sm, 4446 spa->spa_meta_objset, 4447 scip->scip_prev_obsolete_sm_object, 4448 0, vd->vdev_asize, 0)); 4449 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm); 4450 (void) printf("\n"); 4451 space_map_close(prev_obsolete_sm); 4452 } 4453 4454 scip_count += 2; 4455 } 4456 4457 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) { 4458 vdev_t *vd = spa->spa_root_vdev->vdev_child[i]; 4459 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 4460 4461 if (vic->vic_mapping_object != 0) { 4462 ASSERT(vd->vdev_ops == &vdev_indirect_ops || 4463 vd->vdev_removing); 4464 indirect_vdev_count++; 4465 4466 if (vd->vdev_indirect_mapping->vim_havecounts) { 4467 obsolete_counts_count++; 4468 } 4469 } 4470 if (vdev_obsolete_counts_are_precise(vd)) { 4471 ASSERT(vic->vic_mapping_object != 0); 4472 precise_vdev_count++; 4473 } 4474 if (vdev_obsolete_sm_object(vd) != 0) { 4475 ASSERT(vic->vic_mapping_object != 0); 4476 obsolete_sm_count++; 4477 } 4478 } 4479 4480 (void) feature_get_refcount(spa, 4481 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL], 4482 &dr_feature_refcount); 4483 (void) feature_get_refcount(spa, 4484 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS], 4485 &oc_feature_refcount); 4486 4487 if (dr_feature_refcount != indirect_vdev_count) { 4488 ret = 1; 4489 (void) printf("Number of indirect vdevs (%llu) " \ 4490 "does not match feature count (%llu)\n", 4491 (u_longlong_t)indirect_vdev_count, 4492 (u_longlong_t)dr_feature_refcount); 4493 } else { 4494 (void) printf("Verified device_removal feature refcount " \ 4495 "of %llu is correct\n", 4496 (u_longlong_t)dr_feature_refcount); 4497 } 4498 4499 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT, 4500 DMU_POOL_OBSOLETE_BPOBJ) == 0) { 4501 obsolete_bpobj_count++; 4502 } 4503 4504 4505 obsolete_counts_object_count = precise_vdev_count; 4506 obsolete_counts_object_count += obsolete_sm_count; 4507 obsolete_counts_object_count += obsolete_counts_count; 4508 obsolete_counts_object_count += scip_count; 4509 obsolete_counts_object_count += obsolete_bpobj_count; 4510 obsolete_counts_object_count += remap_deadlist_count; 4511 4512 if (oc_feature_refcount != obsolete_counts_object_count) { 4513 ret = 1; 4514 (void) printf("Number of obsolete counts objects (%llu) " \ 4515 "does not match feature count (%llu)\n", 4516 (u_longlong_t)obsolete_counts_object_count, 4517 (u_longlong_t)oc_feature_refcount); 4518 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu " 4519 "ob:%llu rd:%llu\n", 4520 (u_longlong_t)precise_vdev_count, 4521 (u_longlong_t)obsolete_sm_count, 4522 (u_longlong_t)obsolete_counts_count, 4523 (u_longlong_t)scip_count, 4524 (u_longlong_t)obsolete_bpobj_count, 4525 (u_longlong_t)remap_deadlist_count); 4526 } else { 4527 (void) printf("Verified indirect_refcount feature refcount " \ 4528 "of %llu is correct\n", 4529 (u_longlong_t)oc_feature_refcount); 4530 } 4531 return (ret); 4532 } 4533 4534 static void 4535 zdb_set_skip_mmp(char *target) 4536 { 4537 spa_t *spa; 4538 4539 /* 4540 * Disable the activity check to allow examination of 4541 * active pools. 4542 */ 4543 mutex_enter(&spa_namespace_lock); 4544 if ((spa = spa_lookup(target)) != NULL) { 4545 spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP; 4546 } 4547 mutex_exit(&spa_namespace_lock); 4548 } 4549 4550 #define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE" 4551 /* 4552 * Import the checkpointed state of the pool specified by the target 4553 * parameter as readonly. The function also accepts a pool config 4554 * as an optional parameter, else it attempts to infer the config by 4555 * the name of the target pool. 4556 * 4557 * Note that the checkpointed state's pool name will be the name of 4558 * the original pool with the above suffix appened to it. In addition, 4559 * if the target is not a pool name (e.g. a path to a dataset) then 4560 * the new_path parameter is populated with the updated path to 4561 * reflect the fact that we are looking into the checkpointed state. 4562 * 4563 * The function returns a newly-allocated copy of the name of the 4564 * pool containing the checkpointed state. When this copy is no 4565 * longer needed it should be freed with free(3C). Same thing 4566 * applies to the new_path parameter if allocated. 4567 */ 4568 static char * 4569 import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path) 4570 { 4571 int error = 0; 4572 char *poolname, *bogus_name; 4573 4574 /* If the target is not a pool, the extract the pool name */ 4575 char *path_start = strchr(target, '/'); 4576 if (path_start != NULL) { 4577 size_t poolname_len = path_start - target; 4578 poolname = strndup(target, poolname_len); 4579 } else { 4580 poolname = target; 4581 } 4582 4583 if (cfg == NULL) { 4584 zdb_set_skip_mmp(poolname); 4585 error = spa_get_stats(poolname, &cfg, NULL, 0); 4586 if (error != 0) { 4587 fatal("Tried to read config of pool \"%s\" but " 4588 "spa_get_stats() failed with error %d\n", 4589 poolname, error); 4590 } 4591 } 4592 4593 (void) asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX); 4594 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name); 4595 4596 error = spa_import(bogus_name, cfg, NULL, 4597 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT | 4598 ZFS_IMPORT_SKIP_MMP); 4599 if (error != 0) { 4600 fatal("Tried to import pool \"%s\" but spa_import() failed " 4601 "with error %d\n", bogus_name, error); 4602 } 4603 4604 if (new_path != NULL && path_start != NULL) 4605 (void) asprintf(new_path, "%s%s", bogus_name, path_start); 4606 4607 if (target != poolname) 4608 free(poolname); 4609 4610 return (bogus_name); 4611 } 4612 4613 typedef struct verify_checkpoint_sm_entry_cb_arg { 4614 vdev_t *vcsec_vd; 4615 4616 /* the following fields are only used for printing progress */ 4617 uint64_t vcsec_entryid; 4618 uint64_t vcsec_num_entries; 4619 } verify_checkpoint_sm_entry_cb_arg_t; 4620 4621 #define ENTRIES_PER_PROGRESS_UPDATE 10000 4622 4623 static int 4624 verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg) 4625 { 4626 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg; 4627 vdev_t *vd = vcsec->vcsec_vd; 4628 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 4629 uint64_t end = sme->sme_offset + sme->sme_run; 4630 4631 ASSERT(sme->sme_type == SM_FREE); 4632 4633 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) { 4634 (void) fprintf(stderr, 4635 "\rverifying vdev %llu, space map entry %llu of %llu ...", 4636 (longlong_t)vd->vdev_id, 4637 (longlong_t)vcsec->vcsec_entryid, 4638 (longlong_t)vcsec->vcsec_num_entries); 4639 } 4640 vcsec->vcsec_entryid++; 4641 4642 /* 4643 * See comment in checkpoint_sm_exclude_entry_cb() 4644 */ 4645 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 4646 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 4647 4648 /* 4649 * The entries in the vdev_checkpoint_sm should be marked as 4650 * allocated in the checkpointed state of the pool, therefore 4651 * their respective ms_allocateable trees should not contain them. 4652 */ 4653 mutex_enter(&ms->ms_lock); 4654 range_tree_verify_not_present(ms->ms_allocatable, 4655 sme->sme_offset, sme->sme_run); 4656 mutex_exit(&ms->ms_lock); 4657 4658 return (0); 4659 } 4660 4661 /* 4662 * Verify that all segments in the vdev_checkpoint_sm are allocated 4663 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's 4664 * ms_allocatable). 4665 * 4666 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of 4667 * each vdev in the current state of the pool to the metaslab space maps 4668 * (ms_sm) of the checkpointed state of the pool. 4669 * 4670 * Note that the function changes the state of the ms_allocatable 4671 * trees of the current spa_t. The entries of these ms_allocatable 4672 * trees are cleared out and then repopulated from with the free 4673 * entries of their respective ms_sm space maps. 4674 */ 4675 static void 4676 verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current) 4677 { 4678 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 4679 vdev_t *current_rvd = current->spa_root_vdev; 4680 4681 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE); 4682 4683 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) { 4684 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c]; 4685 vdev_t *current_vd = current_rvd->vdev_child[c]; 4686 4687 space_map_t *checkpoint_sm = NULL; 4688 uint64_t checkpoint_sm_obj; 4689 4690 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 4691 /* 4692 * Since we don't allow device removal in a pool 4693 * that has a checkpoint, we expect that all removed 4694 * vdevs were removed from the pool before the 4695 * checkpoint. 4696 */ 4697 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 4698 continue; 4699 } 4700 4701 /* 4702 * If the checkpoint space map doesn't exist, then nothing 4703 * here is checkpointed so there's nothing to verify. 4704 */ 4705 if (current_vd->vdev_top_zap == 0 || 4706 zap_contains(spa_meta_objset(current), 4707 current_vd->vdev_top_zap, 4708 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 4709 continue; 4710 4711 VERIFY0(zap_lookup(spa_meta_objset(current), 4712 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 4713 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 4714 4715 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current), 4716 checkpoint_sm_obj, 0, current_vd->vdev_asize, 4717 current_vd->vdev_ashift)); 4718 4719 verify_checkpoint_sm_entry_cb_arg_t vcsec; 4720 vcsec.vcsec_vd = ckpoint_vd; 4721 vcsec.vcsec_entryid = 0; 4722 vcsec.vcsec_num_entries = 4723 space_map_length(checkpoint_sm) / sizeof (uint64_t); 4724 VERIFY0(space_map_iterate(checkpoint_sm, 4725 space_map_length(checkpoint_sm), 4726 verify_checkpoint_sm_entry_cb, &vcsec)); 4727 dump_spacemap(current->spa_meta_objset, checkpoint_sm); 4728 space_map_close(checkpoint_sm); 4729 } 4730 4731 /* 4732 * If we've added vdevs since we took the checkpoint, ensure 4733 * that their checkpoint space maps are empty. 4734 */ 4735 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) { 4736 for (uint64_t c = ckpoint_rvd->vdev_children; 4737 c < current_rvd->vdev_children; c++) { 4738 vdev_t *current_vd = current_rvd->vdev_child[c]; 4739 ASSERT3P(current_vd->vdev_checkpoint_sm, ==, NULL); 4740 } 4741 } 4742 4743 /* for cleaner progress output */ 4744 (void) fprintf(stderr, "\n"); 4745 } 4746 4747 /* 4748 * Verifies that all space that's allocated in the checkpoint is 4749 * still allocated in the current version, by checking that everything 4750 * in checkpoint's ms_allocatable (which is actually allocated, not 4751 * allocatable/free) is not present in current's ms_allocatable. 4752 * 4753 * Note that the function changes the state of the ms_allocatable 4754 * trees of both spas when called. The entries of all ms_allocatable 4755 * trees are cleared out and then repopulated from their respective 4756 * ms_sm space maps. In the checkpointed state we load the allocated 4757 * entries, and in the current state we load the free entries. 4758 */ 4759 static void 4760 verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current) 4761 { 4762 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 4763 vdev_t *current_rvd = current->spa_root_vdev; 4764 4765 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC); 4766 load_concrete_ms_allocatable_trees(current, SM_FREE); 4767 4768 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) { 4769 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i]; 4770 vdev_t *current_vd = current_rvd->vdev_child[i]; 4771 4772 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 4773 /* 4774 * See comment in verify_checkpoint_vdev_spacemaps() 4775 */ 4776 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 4777 continue; 4778 } 4779 4780 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) { 4781 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m]; 4782 metaslab_t *current_msp = current_vd->vdev_ms[m]; 4783 4784 (void) fprintf(stderr, 4785 "\rverifying vdev %llu of %llu, " 4786 "metaslab %llu of %llu ...", 4787 (longlong_t)current_vd->vdev_id, 4788 (longlong_t)current_rvd->vdev_children, 4789 (longlong_t)current_vd->vdev_ms[m]->ms_id, 4790 (longlong_t)current_vd->vdev_ms_count); 4791 4792 /* 4793 * We walk through the ms_allocatable trees that 4794 * are loaded with the allocated blocks from the 4795 * ms_sm spacemaps of the checkpoint. For each 4796 * one of these ranges we ensure that none of them 4797 * exists in the ms_allocatable trees of the 4798 * current state which are loaded with the ranges 4799 * that are currently free. 4800 * 4801 * This way we ensure that none of the blocks that 4802 * are part of the checkpoint were freed by mistake. 4803 */ 4804 range_tree_walk(ckpoint_msp->ms_allocatable, 4805 (range_tree_func_t *)range_tree_verify_not_present, 4806 current_msp->ms_allocatable); 4807 } 4808 } 4809 4810 /* for cleaner progress output */ 4811 (void) fprintf(stderr, "\n"); 4812 } 4813 4814 static void 4815 verify_checkpoint_blocks(spa_t *spa) 4816 { 4817 ASSERT(!dump_opt['L']); 4818 4819 spa_t *checkpoint_spa; 4820 char *checkpoint_pool; 4821 nvlist_t *config = NULL; 4822 int error = 0; 4823 4824 /* 4825 * We import the checkpointed state of the pool (under a different 4826 * name) so we can do verification on it against the current state 4827 * of the pool. 4828 */ 4829 checkpoint_pool = import_checkpointed_state(spa->spa_name, config, 4830 NULL); 4831 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0); 4832 4833 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG); 4834 if (error != 0) { 4835 fatal("Tried to open pool \"%s\" but spa_open() failed with " 4836 "error %d\n", checkpoint_pool, error); 4837 } 4838 4839 /* 4840 * Ensure that ranges in the checkpoint space maps of each vdev 4841 * are allocated according to the checkpointed state's metaslab 4842 * space maps. 4843 */ 4844 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa); 4845 4846 /* 4847 * Ensure that allocated ranges in the checkpoint's metaslab 4848 * space maps remain allocated in the metaslab space maps of 4849 * the current state. 4850 */ 4851 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa); 4852 4853 /* 4854 * Once we are done, we get rid of the checkpointed state. 4855 */ 4856 spa_close(checkpoint_spa, FTAG); 4857 free(checkpoint_pool); 4858 } 4859 4860 static void 4861 dump_leftover_checkpoint_blocks(spa_t *spa) 4862 { 4863 vdev_t *rvd = spa->spa_root_vdev; 4864 4865 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 4866 vdev_t *vd = rvd->vdev_child[i]; 4867 4868 space_map_t *checkpoint_sm = NULL; 4869 uint64_t checkpoint_sm_obj; 4870 4871 if (vd->vdev_top_zap == 0) 4872 continue; 4873 4874 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 4875 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 4876 continue; 4877 4878 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 4879 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 4880 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 4881 4882 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 4883 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 4884 dump_spacemap(spa->spa_meta_objset, checkpoint_sm); 4885 space_map_close(checkpoint_sm); 4886 } 4887 } 4888 4889 static int 4890 verify_checkpoint(spa_t *spa) 4891 { 4892 uberblock_t checkpoint; 4893 int error; 4894 4895 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) 4896 return (0); 4897 4898 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, 4899 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), 4900 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); 4901 4902 if (error == ENOENT && !dump_opt['L']) { 4903 /* 4904 * If the feature is active but the uberblock is missing 4905 * then we must be in the middle of discarding the 4906 * checkpoint. 4907 */ 4908 (void) printf("\nPartially discarded checkpoint " 4909 "state found:\n"); 4910 dump_leftover_checkpoint_blocks(spa); 4911 return (0); 4912 } else if (error != 0) { 4913 (void) printf("lookup error %d when looking for " 4914 "checkpointed uberblock in MOS\n", error); 4915 return (error); 4916 } 4917 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n"); 4918 4919 if (checkpoint.ub_checkpoint_txg == 0) { 4920 (void) printf("\nub_checkpoint_txg not set in checkpointed " 4921 "uberblock\n"); 4922 error = 3; 4923 } 4924 4925 if (error == 0 && !dump_opt['L']) 4926 verify_checkpoint_blocks(spa); 4927 4928 return (error); 4929 } 4930 4931 /* ARGSUSED */ 4932 static void 4933 mos_leaks_cb(void *arg, uint64_t start, uint64_t size) 4934 { 4935 for (uint64_t i = start; i < size; i++) { 4936 (void) printf("MOS object %llu referenced but not allocated\n", 4937 (u_longlong_t)i); 4938 } 4939 } 4940 4941 static range_tree_t *mos_refd_objs; 4942 4943 static void 4944 mos_obj_refd(uint64_t obj) 4945 { 4946 if (obj != 0 && mos_refd_objs != NULL) 4947 range_tree_add(mos_refd_objs, obj, 1); 4948 } 4949 4950 static void 4951 mos_leak_vdev_top_zap(vdev_t *vd) 4952 { 4953 uint64_t ms_flush_data_obj; 4954 4955 int error = zap_lookup(spa_meta_objset(vd->vdev_spa), 4956 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, 4957 sizeof (ms_flush_data_obj), 1, &ms_flush_data_obj); 4958 if (error == ENOENT) 4959 return; 4960 ASSERT0(error); 4961 4962 mos_obj_refd(ms_flush_data_obj); 4963 } 4964 4965 static void 4966 mos_leak_vdev(vdev_t *vd) 4967 { 4968 mos_obj_refd(vd->vdev_dtl_object); 4969 mos_obj_refd(vd->vdev_ms_array); 4970 mos_obj_refd(vd->vdev_indirect_config.vic_births_object); 4971 mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object); 4972 mos_obj_refd(vd->vdev_leaf_zap); 4973 if (vd->vdev_checkpoint_sm != NULL) 4974 mos_obj_refd(vd->vdev_checkpoint_sm->sm_object); 4975 if (vd->vdev_indirect_mapping != NULL) { 4976 mos_obj_refd(vd->vdev_indirect_mapping-> 4977 vim_phys->vimp_counts_object); 4978 } 4979 if (vd->vdev_obsolete_sm != NULL) 4980 mos_obj_refd(vd->vdev_obsolete_sm->sm_object); 4981 4982 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 4983 metaslab_t *ms = vd->vdev_ms[m]; 4984 mos_obj_refd(space_map_object(ms->ms_sm)); 4985 } 4986 4987 if (vd->vdev_top_zap != 0) { 4988 mos_obj_refd(vd->vdev_top_zap); 4989 mos_leak_vdev_top_zap(vd); 4990 } 4991 4992 for (uint64_t c = 0; c < vd->vdev_children; c++) { 4993 mos_leak_vdev(vd->vdev_child[c]); 4994 } 4995 } 4996 4997 static void 4998 mos_leak_log_spacemaps(spa_t *spa) 4999 { 5000 uint64_t spacemap_zap; 5001 5002 int error = zap_lookup(spa_meta_objset(spa), 5003 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_LOG_SPACEMAP_ZAP, 5004 sizeof (spacemap_zap), 1, &spacemap_zap); 5005 if (error == ENOENT) 5006 return; 5007 ASSERT0(error); 5008 5009 mos_obj_refd(spacemap_zap); 5010 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 5011 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) 5012 mos_obj_refd(sls->sls_sm_obj); 5013 } 5014 5015 static int 5016 dump_mos_leaks(spa_t *spa) 5017 { 5018 int rv = 0; 5019 objset_t *mos = spa->spa_meta_objset; 5020 dsl_pool_t *dp = spa->spa_dsl_pool; 5021 5022 /* Visit and mark all referenced objects in the MOS */ 5023 5024 mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT); 5025 mos_obj_refd(spa->spa_pool_props_object); 5026 mos_obj_refd(spa->spa_config_object); 5027 mos_obj_refd(spa->spa_ddt_stat_object); 5028 mos_obj_refd(spa->spa_feat_desc_obj); 5029 mos_obj_refd(spa->spa_feat_enabled_txg_obj); 5030 mos_obj_refd(spa->spa_feat_for_read_obj); 5031 mos_obj_refd(spa->spa_feat_for_write_obj); 5032 mos_obj_refd(spa->spa_history); 5033 mos_obj_refd(spa->spa_errlog_last); 5034 mos_obj_refd(spa->spa_errlog_scrub); 5035 mos_obj_refd(spa->spa_all_vdev_zaps); 5036 mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj); 5037 mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj); 5038 mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj); 5039 bpobj_count_refd(&spa->spa_deferred_bpobj); 5040 mos_obj_refd(dp->dp_empty_bpobj); 5041 bpobj_count_refd(&dp->dp_obsolete_bpobj); 5042 bpobj_count_refd(&dp->dp_free_bpobj); 5043 mos_obj_refd(spa->spa_l2cache.sav_object); 5044 mos_obj_refd(spa->spa_spares.sav_object); 5045 5046 if (spa->spa_syncing_log_sm != NULL) 5047 mos_obj_refd(spa->spa_syncing_log_sm->sm_object); 5048 mos_leak_log_spacemaps(spa); 5049 5050 mos_obj_refd(spa->spa_condensing_indirect_phys. 5051 scip_next_mapping_object); 5052 mos_obj_refd(spa->spa_condensing_indirect_phys. 5053 scip_prev_obsolete_sm_object); 5054 if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) { 5055 vdev_indirect_mapping_t *vim = 5056 vdev_indirect_mapping_open(mos, 5057 spa->spa_condensing_indirect_phys.scip_next_mapping_object); 5058 mos_obj_refd(vim->vim_phys->vimp_counts_object); 5059 vdev_indirect_mapping_close(vim); 5060 } 5061 5062 if (dp->dp_origin_snap != NULL) { 5063 dsl_dataset_t *ds; 5064 5065 dsl_pool_config_enter(dp, FTAG); 5066 VERIFY0(dsl_dataset_hold_obj(dp, 5067 dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj, 5068 FTAG, &ds)); 5069 count_ds_mos_objects(ds); 5070 dump_deadlist(&ds->ds_deadlist); 5071 dsl_dataset_rele(ds, FTAG); 5072 dsl_pool_config_exit(dp, FTAG); 5073 5074 count_ds_mos_objects(dp->dp_origin_snap); 5075 dump_deadlist(&dp->dp_origin_snap->ds_deadlist); 5076 } 5077 count_dir_mos_objects(dp->dp_mos_dir); 5078 if (dp->dp_free_dir != NULL) 5079 count_dir_mos_objects(dp->dp_free_dir); 5080 if (dp->dp_leak_dir != NULL) 5081 count_dir_mos_objects(dp->dp_leak_dir); 5082 5083 mos_leak_vdev(spa->spa_root_vdev); 5084 5085 for (uint64_t class = 0; class < DDT_CLASSES; class++) { 5086 for (uint64_t type = 0; type < DDT_TYPES; type++) { 5087 for (uint64_t cksum = 0; 5088 cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) { 5089 ddt_t *ddt = spa->spa_ddt[cksum]; 5090 mos_obj_refd(ddt->ddt_object[type][class]); 5091 } 5092 } 5093 } 5094 5095 /* 5096 * Visit all allocated objects and make sure they are referenced. 5097 */ 5098 uint64_t object = 0; 5099 while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) { 5100 if (range_tree_contains(mos_refd_objs, object, 1)) { 5101 range_tree_remove(mos_refd_objs, object, 1); 5102 } else { 5103 dmu_object_info_t doi; 5104 const char *name; 5105 dmu_object_info(mos, object, &doi); 5106 if (doi.doi_type & DMU_OT_NEWTYPE) { 5107 dmu_object_byteswap_t bswap = 5108 DMU_OT_BYTESWAP(doi.doi_type); 5109 name = dmu_ot_byteswap[bswap].ob_name; 5110 } else { 5111 name = dmu_ot[doi.doi_type].ot_name; 5112 } 5113 5114 (void) printf("MOS object %llu (%s) leaked\n", 5115 (u_longlong_t)object, name); 5116 rv = 2; 5117 } 5118 } 5119 (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL); 5120 if (!range_tree_is_empty(mos_refd_objs)) 5121 rv = 2; 5122 range_tree_vacate(mos_refd_objs, NULL, NULL); 5123 range_tree_destroy(mos_refd_objs); 5124 return (rv); 5125 } 5126 5127 typedef struct log_sm_obsolete_stats_arg { 5128 uint64_t lsos_current_txg; 5129 5130 uint64_t lsos_total_entries; 5131 uint64_t lsos_valid_entries; 5132 5133 uint64_t lsos_sm_entries; 5134 uint64_t lsos_valid_sm_entries; 5135 } log_sm_obsolete_stats_arg_t; 5136 5137 static int 5138 log_spacemap_obsolete_stats_cb(spa_t *spa, space_map_entry_t *sme, 5139 uint64_t txg, void *arg) 5140 { 5141 log_sm_obsolete_stats_arg_t *lsos = arg; 5142 uint64_t offset = sme->sme_offset; 5143 uint64_t vdev_id = sme->sme_vdev; 5144 5145 if (lsos->lsos_current_txg == 0) { 5146 /* this is the first log */ 5147 lsos->lsos_current_txg = txg; 5148 } else if (lsos->lsos_current_txg < txg) { 5149 /* we just changed log - print stats and reset */ 5150 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 5151 (u_longlong_t)lsos->lsos_valid_sm_entries, 5152 (u_longlong_t)lsos->lsos_sm_entries, 5153 (u_longlong_t)lsos->lsos_current_txg); 5154 lsos->lsos_valid_sm_entries = 0; 5155 lsos->lsos_sm_entries = 0; 5156 lsos->lsos_current_txg = txg; 5157 } 5158 ASSERT3U(lsos->lsos_current_txg, ==, txg); 5159 5160 lsos->lsos_sm_entries++; 5161 lsos->lsos_total_entries++; 5162 5163 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 5164 if (!vdev_is_concrete(vd)) 5165 return (0); 5166 5167 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 5168 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 5169 5170 if (txg < metaslab_unflushed_txg(ms)) 5171 return (0); 5172 lsos->lsos_valid_sm_entries++; 5173 lsos->lsos_valid_entries++; 5174 return (0); 5175 } 5176 5177 static void 5178 dump_log_spacemap_obsolete_stats(spa_t *spa) 5179 { 5180 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 5181 return; 5182 5183 log_sm_obsolete_stats_arg_t lsos; 5184 bzero(&lsos, sizeof (lsos)); 5185 5186 (void) printf("Log Space Map Obsolete Entry Statistics:\n"); 5187 5188 iterate_through_spacemap_logs(spa, 5189 log_spacemap_obsolete_stats_cb, &lsos); 5190 5191 /* print stats for latest log */ 5192 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 5193 (u_longlong_t)lsos.lsos_valid_sm_entries, 5194 (u_longlong_t)lsos.lsos_sm_entries, 5195 (u_longlong_t)lsos.lsos_current_txg); 5196 5197 (void) printf("%-8llu valid entries out of %-8llu - total\n\n", 5198 (u_longlong_t)lsos.lsos_valid_entries, 5199 (u_longlong_t)lsos.lsos_total_entries); 5200 } 5201 5202 static void 5203 dump_zpool(spa_t *spa) 5204 { 5205 dsl_pool_t *dp = spa_get_dsl(spa); 5206 int rc = 0; 5207 5208 if (dump_opt['S']) { 5209 dump_simulated_ddt(spa); 5210 return; 5211 } 5212 5213 if (!dump_opt['e'] && dump_opt['C'] > 1) { 5214 (void) printf("\nCached configuration:\n"); 5215 dump_nvlist(spa->spa_config, 8); 5216 } 5217 5218 if (dump_opt['C']) 5219 dump_config(spa); 5220 5221 if (dump_opt['u']) 5222 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 5223 5224 if (dump_opt['D']) 5225 dump_all_ddts(spa); 5226 5227 if (dump_opt['d'] > 2 || dump_opt['m']) 5228 dump_metaslabs(spa); 5229 if (dump_opt['M']) 5230 dump_metaslab_groups(spa); 5231 if (dump_opt['d'] > 2 || dump_opt['m']) { 5232 dump_log_spacemaps(spa); 5233 dump_log_spacemap_obsolete_stats(spa); 5234 } 5235 5236 if (dump_opt['d'] || dump_opt['i']) { 5237 mos_refd_objs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 5238 0); 5239 dump_dir(dp->dp_meta_objset); 5240 5241 if (dump_opt['d'] >= 3) { 5242 dsl_pool_t *dp = spa->spa_dsl_pool; 5243 dump_full_bpobj(&spa->spa_deferred_bpobj, 5244 "Deferred frees", 0); 5245 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 5246 dump_full_bpobj(&dp->dp_free_bpobj, 5247 "Pool snapshot frees", 0); 5248 } 5249 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 5250 ASSERT(spa_feature_is_enabled(spa, 5251 SPA_FEATURE_DEVICE_REMOVAL)); 5252 dump_full_bpobj(&dp->dp_obsolete_bpobj, 5253 "Pool obsolete blocks", 0); 5254 } 5255 5256 if (spa_feature_is_active(spa, 5257 SPA_FEATURE_ASYNC_DESTROY)) { 5258 dump_bptree(spa->spa_meta_objset, 5259 dp->dp_bptree_obj, 5260 "Pool dataset frees"); 5261 } 5262 dump_dtl(spa->spa_root_vdev, 0); 5263 } 5264 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 5265 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 5266 5267 if (rc == 0 && !dump_opt['L']) 5268 rc = dump_mos_leaks(spa); 5269 5270 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 5271 uint64_t refcount; 5272 5273 if (!(spa_feature_table[f].fi_flags & 5274 ZFEATURE_FLAG_PER_DATASET) || 5275 !spa_feature_is_enabled(spa, f)) { 5276 ASSERT0(dataset_feature_count[f]); 5277 continue; 5278 } 5279 (void) feature_get_refcount(spa, 5280 &spa_feature_table[f], &refcount); 5281 if (dataset_feature_count[f] != refcount) { 5282 (void) printf("%s feature refcount mismatch: " 5283 "%lld datasets != %lld refcount\n", 5284 spa_feature_table[f].fi_uname, 5285 (longlong_t)dataset_feature_count[f], 5286 (longlong_t)refcount); 5287 rc = 2; 5288 } else { 5289 (void) printf("Verified %s feature refcount " 5290 "of %llu is correct\n", 5291 spa_feature_table[f].fi_uname, 5292 (longlong_t)refcount); 5293 } 5294 } 5295 5296 if (rc == 0) 5297 rc = verify_device_removal_feature_counts(spa); 5298 } 5299 5300 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 5301 rc = dump_block_stats(spa); 5302 5303 if (rc == 0) 5304 rc = verify_spacemap_refcounts(spa); 5305 5306 if (dump_opt['s']) 5307 show_pool_stats(spa); 5308 5309 if (dump_opt['h']) 5310 dump_history(spa); 5311 5312 if (rc == 0) 5313 rc = verify_checkpoint(spa); 5314 5315 if (rc != 0) { 5316 dump_debug_buffer(); 5317 exit(rc); 5318 } 5319 } 5320 5321 #define ZDB_FLAG_CHECKSUM 0x0001 5322 #define ZDB_FLAG_DECOMPRESS 0x0002 5323 #define ZDB_FLAG_BSWAP 0x0004 5324 #define ZDB_FLAG_GBH 0x0008 5325 #define ZDB_FLAG_INDIRECT 0x0010 5326 #define ZDB_FLAG_PHYS 0x0020 5327 #define ZDB_FLAG_RAW 0x0040 5328 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 5329 5330 static int flagbits[256]; 5331 5332 static void 5333 zdb_print_blkptr(blkptr_t *bp, int flags) 5334 { 5335 char blkbuf[BP_SPRINTF_LEN]; 5336 5337 if (flags & ZDB_FLAG_BSWAP) 5338 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 5339 5340 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 5341 (void) printf("%s\n", blkbuf); 5342 } 5343 5344 static void 5345 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 5346 { 5347 int i; 5348 5349 for (i = 0; i < nbps; i++) 5350 zdb_print_blkptr(&bp[i], flags); 5351 } 5352 5353 static void 5354 zdb_dump_gbh(void *buf, int flags) 5355 { 5356 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 5357 } 5358 5359 static void 5360 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 5361 { 5362 if (flags & ZDB_FLAG_BSWAP) 5363 byteswap_uint64_array(buf, size); 5364 (void) write(1, buf, size); 5365 } 5366 5367 static void 5368 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 5369 { 5370 uint64_t *d = (uint64_t *)buf; 5371 unsigned nwords = size / sizeof (uint64_t); 5372 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 5373 unsigned i, j; 5374 const char *hdr; 5375 char *c; 5376 5377 5378 if (do_bswap) 5379 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 5380 else 5381 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 5382 5383 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 5384 5385 for (i = 0; i < nwords; i += 2) { 5386 (void) printf("%06llx: %016llx %016llx ", 5387 (u_longlong_t)(i * sizeof (uint64_t)), 5388 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 5389 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 5390 5391 c = (char *)&d[i]; 5392 for (j = 0; j < 2 * sizeof (uint64_t); j++) 5393 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 5394 (void) printf("\n"); 5395 } 5396 } 5397 5398 /* 5399 * There are two acceptable formats: 5400 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 5401 * child[.child]* - For example: 0.1.1 5402 * 5403 * The second form can be used to specify arbitrary vdevs anywhere 5404 * in the heirarchy. For example, in a pool with a mirror of 5405 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 5406 */ 5407 static vdev_t * 5408 zdb_vdev_lookup(vdev_t *vdev, const char *path) 5409 { 5410 char *s, *p, *q; 5411 unsigned i; 5412 5413 if (vdev == NULL) 5414 return (NULL); 5415 5416 /* First, assume the x.x.x.x format */ 5417 i = strtoul(path, &s, 10); 5418 if (s == path || (s && *s != '.' && *s != '\0')) 5419 goto name; 5420 if (i >= vdev->vdev_children) 5421 return (NULL); 5422 5423 vdev = vdev->vdev_child[i]; 5424 if (*s == '\0') 5425 return (vdev); 5426 return (zdb_vdev_lookup(vdev, s+1)); 5427 5428 name: 5429 for (i = 0; i < vdev->vdev_children; i++) { 5430 vdev_t *vc = vdev->vdev_child[i]; 5431 5432 if (vc->vdev_path == NULL) { 5433 vc = zdb_vdev_lookup(vc, path); 5434 if (vc == NULL) 5435 continue; 5436 else 5437 return (vc); 5438 } 5439 5440 p = strrchr(vc->vdev_path, '/'); 5441 p = p ? p + 1 : vc->vdev_path; 5442 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 5443 5444 if (strcmp(vc->vdev_path, path) == 0) 5445 return (vc); 5446 if (strcmp(p, path) == 0) 5447 return (vc); 5448 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 5449 return (vc); 5450 } 5451 5452 return (NULL); 5453 } 5454 5455 /* ARGSUSED */ 5456 static int 5457 random_get_pseudo_bytes_cb(void *buf, size_t len, void *unused) 5458 { 5459 return (random_get_pseudo_bytes(buf, len)); 5460 } 5461 5462 /* 5463 * Read a block from a pool and print it out. The syntax of the 5464 * block descriptor is: 5465 * 5466 * pool:vdev_specifier:offset:size[:flags] 5467 * 5468 * pool - The name of the pool you wish to read from 5469 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 5470 * offset - offset, in hex, in bytes 5471 * size - Amount of data to read, in hex, in bytes 5472 * flags - A string of characters specifying options 5473 * b: Decode a blkptr at given offset within block 5474 * *c: Calculate and display checksums 5475 * d: Decompress data before dumping 5476 * e: Byteswap data before dumping 5477 * g: Display data as a gang block header 5478 * i: Display as an indirect block 5479 * p: Do I/O to physical offset 5480 * r: Dump raw data to stdout 5481 * 5482 * * = not yet implemented 5483 */ 5484 static void 5485 zdb_read_block(char *thing, spa_t *spa) 5486 { 5487 blkptr_t blk, *bp = &blk; 5488 dva_t *dva = bp->blk_dva; 5489 int flags = 0; 5490 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 5491 zio_t *zio; 5492 vdev_t *vd; 5493 abd_t *pabd; 5494 void *lbuf, *buf; 5495 const char *s, *vdev; 5496 char *p, *dup, *flagstr; 5497 int i, error; 5498 5499 dup = strdup(thing); 5500 s = strtok(dup, ":"); 5501 vdev = s ? s : ""; 5502 s = strtok(NULL, ":"); 5503 offset = strtoull(s ? s : "", NULL, 16); 5504 s = strtok(NULL, ":"); 5505 size = strtoull(s ? s : "", NULL, 16); 5506 s = strtok(NULL, ":"); 5507 if (s) 5508 flagstr = strdup(s); 5509 else 5510 flagstr = strdup(""); 5511 5512 s = NULL; 5513 if (size == 0) 5514 s = "size must not be zero"; 5515 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 5516 s = "size must be a multiple of sector size"; 5517 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 5518 s = "offset must be a multiple of sector size"; 5519 if (s) { 5520 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 5521 free(dup); 5522 return; 5523 } 5524 5525 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 5526 for (i = 0; flagstr[i]; i++) { 5527 int bit = flagbits[(uchar_t)flagstr[i]]; 5528 5529 if (bit == 0) { 5530 (void) printf("***Invalid flag: %c\n", 5531 flagstr[i]); 5532 continue; 5533 } 5534 flags |= bit; 5535 5536 /* If it's not something with an argument, keep going */ 5537 if ((bit & (ZDB_FLAG_CHECKSUM | 5538 ZDB_FLAG_PRINT_BLKPTR)) == 0) 5539 continue; 5540 5541 p = &flagstr[i + 1]; 5542 if (bit == ZDB_FLAG_PRINT_BLKPTR) 5543 blkptr_offset = strtoull(p, &p, 16); 5544 if (*p != ':' && *p != '\0') { 5545 (void) printf("***Invalid flag arg: '%s'\n", s); 5546 free(dup); 5547 return; 5548 } 5549 } 5550 } 5551 free(flagstr); 5552 5553 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 5554 if (vd == NULL) { 5555 (void) printf("***Invalid vdev: %s\n", vdev); 5556 free(dup); 5557 return; 5558 } else { 5559 if (vd->vdev_path) 5560 (void) fprintf(stderr, "Found vdev: %s\n", 5561 vd->vdev_path); 5562 else 5563 (void) fprintf(stderr, "Found vdev type: %s\n", 5564 vd->vdev_ops->vdev_op_type); 5565 } 5566 5567 psize = size; 5568 lsize = size; 5569 5570 pabd = abd_alloc_linear(SPA_MAXBLOCKSIZE, B_FALSE); 5571 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 5572 5573 BP_ZERO(bp); 5574 5575 DVA_SET_VDEV(&dva[0], vd->vdev_id); 5576 DVA_SET_OFFSET(&dva[0], offset); 5577 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 5578 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 5579 5580 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 5581 5582 BP_SET_LSIZE(bp, lsize); 5583 BP_SET_PSIZE(bp, psize); 5584 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 5585 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 5586 BP_SET_TYPE(bp, DMU_OT_NONE); 5587 BP_SET_LEVEL(bp, 0); 5588 BP_SET_DEDUP(bp, 0); 5589 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 5590 5591 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 5592 zio = zio_root(spa, NULL, NULL, 0); 5593 5594 if (vd == vd->vdev_top) { 5595 /* 5596 * Treat this as a normal block read. 5597 */ 5598 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, 5599 ZIO_PRIORITY_SYNC_READ, 5600 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 5601 } else { 5602 /* 5603 * Treat this as a vdev child I/O. 5604 */ 5605 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, 5606 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 5607 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 5608 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 5609 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL, 5610 NULL, NULL)); 5611 } 5612 5613 error = zio_wait(zio); 5614 spa_config_exit(spa, SCL_STATE, FTAG); 5615 5616 if (error) { 5617 (void) printf("Read of %s failed, error: %d\n", thing, error); 5618 goto out; 5619 } 5620 5621 if (flags & ZDB_FLAG_DECOMPRESS) { 5622 /* 5623 * We don't know how the data was compressed, so just try 5624 * every decompress function at every inflated blocksize. 5625 */ 5626 enum zio_compress c; 5627 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 5628 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 5629 5630 abd_copy_to_buf(pbuf2, pabd, psize); 5631 5632 VERIFY0(abd_iterate_func(pabd, psize, SPA_MAXBLOCKSIZE - psize, 5633 random_get_pseudo_bytes_cb, NULL)); 5634 5635 VERIFY0(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 5636 SPA_MAXBLOCKSIZE - psize)); 5637 5638 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 5639 lsize -= SPA_MINBLOCKSIZE) { 5640 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 5641 if (zio_decompress_data(c, pabd, 5642 lbuf, psize, lsize) == 0 && 5643 zio_decompress_data_buf(c, pbuf2, 5644 lbuf2, psize, lsize) == 0 && 5645 bcmp(lbuf, lbuf2, lsize) == 0) 5646 break; 5647 } 5648 if (c != ZIO_COMPRESS_FUNCTIONS) 5649 break; 5650 lsize -= SPA_MINBLOCKSIZE; 5651 } 5652 5653 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 5654 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 5655 5656 if (lsize <= psize) { 5657 (void) printf("Decompress of %s failed\n", thing); 5658 goto out; 5659 } 5660 buf = lbuf; 5661 size = lsize; 5662 } else { 5663 buf = abd_to_buf(pabd); 5664 size = psize; 5665 } 5666 5667 if (flags & ZDB_FLAG_PRINT_BLKPTR) 5668 zdb_print_blkptr((blkptr_t *)(void *) 5669 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 5670 else if (flags & ZDB_FLAG_RAW) 5671 zdb_dump_block_raw(buf, size, flags); 5672 else if (flags & ZDB_FLAG_INDIRECT) 5673 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 5674 flags); 5675 else if (flags & ZDB_FLAG_GBH) 5676 zdb_dump_gbh(buf, flags); 5677 else 5678 zdb_dump_block(thing, buf, size, flags); 5679 5680 out: 5681 abd_free(pabd); 5682 umem_free(lbuf, SPA_MAXBLOCKSIZE); 5683 free(dup); 5684 } 5685 5686 static void 5687 zdb_embedded_block(char *thing) 5688 { 5689 blkptr_t bp; 5690 unsigned long long *words = (void *)&bp; 5691 char *buf; 5692 int err; 5693 5694 bzero(&bp, sizeof (bp)); 5695 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" 5696 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", 5697 words + 0, words + 1, words + 2, words + 3, 5698 words + 4, words + 5, words + 6, words + 7, 5699 words + 8, words + 9, words + 10, words + 11, 5700 words + 12, words + 13, words + 14, words + 15); 5701 if (err != 16) { 5702 (void) fprintf(stderr, "invalid input format\n"); 5703 exit(1); 5704 } 5705 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); 5706 buf = malloc(SPA_MAXBLOCKSIZE); 5707 if (buf == NULL) { 5708 (void) fprintf(stderr, "out of memory\n"); 5709 exit(1); 5710 } 5711 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); 5712 if (err != 0) { 5713 (void) fprintf(stderr, "decode failed: %u\n", err); 5714 exit(1); 5715 } 5716 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); 5717 free(buf); 5718 } 5719 5720 int 5721 main(int argc, char **argv) 5722 { 5723 int c; 5724 struct rlimit rl = { 1024, 1024 }; 5725 spa_t *spa = NULL; 5726 objset_t *os = NULL; 5727 int dump_all = 1; 5728 int verbose = 0; 5729 int error = 0; 5730 char **searchdirs = NULL; 5731 int nsearch = 0; 5732 char *target, *target_pool; 5733 nvlist_t *policy = NULL; 5734 uint64_t max_txg = UINT64_MAX; 5735 int flags = ZFS_IMPORT_MISSING_LOG; 5736 int rewind = ZPOOL_NEVER_REWIND; 5737 char *spa_config_path_env; 5738 boolean_t target_is_spa = B_TRUE; 5739 nvlist_t *cfg = NULL; 5740 5741 (void) setrlimit(RLIMIT_NOFILE, &rl); 5742 (void) enable_extended_FILE_stdio(-1, -1); 5743 5744 dprintf_setup(&argc, argv); 5745 5746 /* 5747 * If there is an environment variable SPA_CONFIG_PATH it overrides 5748 * default spa_config_path setting. If -U flag is specified it will 5749 * override this environment variable settings once again. 5750 */ 5751 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 5752 if (spa_config_path_env != NULL) 5753 spa_config_path = spa_config_path_env; 5754 5755 /* 5756 * For performance reasons, we set this tunable down. We do so before 5757 * the arg parsing section so that the user can override this value if 5758 * they choose. 5759 */ 5760 zfs_btree_verify_intensity = 3; 5761 5762 while ((c = getopt(argc, argv, 5763 "AbcCdDeEFGhiI:klLmMo:Op:PqRsSt:uU:vVx:X")) != -1) { 5764 switch (c) { 5765 case 'b': 5766 case 'c': 5767 case 'C': 5768 case 'd': 5769 case 'D': 5770 case 'E': 5771 case 'G': 5772 case 'h': 5773 case 'i': 5774 case 'l': 5775 case 'm': 5776 case 'M': 5777 case 'O': 5778 case 'R': 5779 case 's': 5780 case 'S': 5781 case 'u': 5782 dump_opt[c]++; 5783 dump_all = 0; 5784 break; 5785 case 'A': 5786 case 'e': 5787 case 'F': 5788 case 'k': 5789 case 'L': 5790 case 'P': 5791 case 'q': 5792 case 'X': 5793 dump_opt[c]++; 5794 break; 5795 /* NB: Sort single match options below. */ 5796 case 'I': 5797 max_inflight = strtoull(optarg, NULL, 0); 5798 if (max_inflight == 0) { 5799 (void) fprintf(stderr, "maximum number " 5800 "of inflight I/Os must be greater " 5801 "than 0\n"); 5802 usage(); 5803 } 5804 break; 5805 case 'o': 5806 error = set_global_var(optarg); 5807 if (error != 0) 5808 usage(); 5809 break; 5810 case 'p': 5811 if (searchdirs == NULL) { 5812 searchdirs = umem_alloc(sizeof (char *), 5813 UMEM_NOFAIL); 5814 } else { 5815 char **tmp = umem_alloc((nsearch + 1) * 5816 sizeof (char *), UMEM_NOFAIL); 5817 bcopy(searchdirs, tmp, nsearch * 5818 sizeof (char *)); 5819 umem_free(searchdirs, 5820 nsearch * sizeof (char *)); 5821 searchdirs = tmp; 5822 } 5823 searchdirs[nsearch++] = optarg; 5824 break; 5825 case 't': 5826 max_txg = strtoull(optarg, NULL, 0); 5827 if (max_txg < TXG_INITIAL) { 5828 (void) fprintf(stderr, "incorrect txg " 5829 "specified: %s\n", optarg); 5830 usage(); 5831 } 5832 break; 5833 case 'U': 5834 spa_config_path = optarg; 5835 if (spa_config_path[0] != '/') { 5836 (void) fprintf(stderr, 5837 "cachefile must be an absolute path " 5838 "(i.e. start with a slash)\n"); 5839 usage(); 5840 } 5841 break; 5842 case 'v': 5843 verbose++; 5844 break; 5845 case 'V': 5846 flags = ZFS_IMPORT_VERBATIM; 5847 break; 5848 case 'x': 5849 vn_dumpdir = optarg; 5850 break; 5851 default: 5852 usage(); 5853 break; 5854 } 5855 } 5856 5857 if (!dump_opt['e'] && searchdirs != NULL) { 5858 (void) fprintf(stderr, "-p option requires use of -e\n"); 5859 usage(); 5860 } 5861 5862 /* 5863 * ZDB does not typically re-read blocks; therefore limit the ARC 5864 * to 256 MB, which can be used entirely for metadata. 5865 */ 5866 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 5867 5868 /* 5869 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 5870 * "zdb -b" uses traversal prefetch which uses async reads. 5871 * For good performance, let several of them be active at once. 5872 */ 5873 zfs_vdev_async_read_max_active = 10; 5874 5875 /* 5876 * Disable reference tracking for better performance. 5877 */ 5878 reference_tracking_enable = B_FALSE; 5879 5880 /* 5881 * Do not fail spa_load when spa_load_verify fails. This is needed 5882 * to load non-idle pools. 5883 */ 5884 spa_load_verify_dryrun = B_TRUE; 5885 5886 kernel_init(FREAD); 5887 g_zfs = libzfs_init(); 5888 ASSERT(g_zfs != NULL); 5889 5890 if (dump_all) 5891 verbose = MAX(verbose, 1); 5892 5893 for (c = 0; c < 256; c++) { 5894 if (dump_all && strchr("AeEFklLOPRSX", c) == NULL) 5895 dump_opt[c] = 1; 5896 if (dump_opt[c]) 5897 dump_opt[c] += verbose; 5898 } 5899 5900 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 5901 zfs_recover = (dump_opt['A'] > 1); 5902 5903 argc -= optind; 5904 argv += optind; 5905 5906 if (argc < 2 && dump_opt['R']) 5907 usage(); 5908 5909 if (dump_opt['E']) { 5910 if (argc != 1) 5911 usage(); 5912 zdb_embedded_block(argv[0]); 5913 return (0); 5914 } 5915 5916 if (argc < 1) { 5917 if (!dump_opt['e'] && dump_opt['C']) { 5918 dump_cachefile(spa_config_path); 5919 return (0); 5920 } 5921 usage(); 5922 } 5923 5924 if (dump_opt['l']) 5925 return (dump_label(argv[0])); 5926 5927 if (dump_opt['O']) { 5928 if (argc != 2) 5929 usage(); 5930 dump_opt['v'] = verbose + 3; 5931 return (dump_path(argv[0], argv[1])); 5932 } 5933 5934 if (dump_opt['X'] || dump_opt['F']) 5935 rewind = ZPOOL_DO_REWIND | 5936 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 5937 5938 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 5939 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 || 5940 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0) 5941 fatal("internal error: %s", strerror(ENOMEM)); 5942 5943 error = 0; 5944 target = argv[0]; 5945 5946 if (strpbrk(target, "/@") != NULL) { 5947 size_t targetlen; 5948 5949 target_pool = strdup(target); 5950 *strpbrk(target_pool, "/@") = '\0'; 5951 5952 target_is_spa = B_FALSE; 5953 targetlen = strlen(target); 5954 if (targetlen && target[targetlen - 1] == '/') 5955 target[targetlen - 1] = '\0'; 5956 } else { 5957 target_pool = target; 5958 } 5959 5960 if (dump_opt['e']) { 5961 importargs_t args = { 0 }; 5962 5963 args.paths = nsearch; 5964 args.path = searchdirs; 5965 args.can_be_active = B_TRUE; 5966 5967 error = zpool_tryimport(g_zfs, target_pool, &cfg, &args); 5968 5969 if (error == 0) { 5970 5971 if (nvlist_add_nvlist(cfg, 5972 ZPOOL_LOAD_POLICY, policy) != 0) { 5973 fatal("can't open '%s': %s", 5974 target, strerror(ENOMEM)); 5975 } 5976 5977 if (dump_opt['C'] > 1) { 5978 (void) printf("\nConfiguration for import:\n"); 5979 dump_nvlist(cfg, 8); 5980 } 5981 5982 /* 5983 * Disable the activity check to allow examination of 5984 * active pools. 5985 */ 5986 error = spa_import(target_pool, cfg, NULL, 5987 flags | ZFS_IMPORT_SKIP_MMP); 5988 } 5989 } 5990 5991 char *checkpoint_pool = NULL; 5992 char *checkpoint_target = NULL; 5993 if (dump_opt['k']) { 5994 checkpoint_pool = import_checkpointed_state(target, cfg, 5995 &checkpoint_target); 5996 5997 if (checkpoint_target != NULL) 5998 target = checkpoint_target; 5999 6000 } 6001 6002 if (error == 0) { 6003 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) { 6004 ASSERT(checkpoint_pool != NULL); 6005 ASSERT(checkpoint_target == NULL); 6006 6007 error = spa_open(checkpoint_pool, &spa, FTAG); 6008 if (error != 0) { 6009 fatal("Tried to open pool \"%s\" but " 6010 "spa_open() failed with error %d\n", 6011 checkpoint_pool, error); 6012 } 6013 6014 } else if (target_is_spa || dump_opt['R']) { 6015 zdb_set_skip_mmp(target); 6016 error = spa_open_rewind(target, &spa, FTAG, policy, 6017 NULL); 6018 if (error) { 6019 /* 6020 * If we're missing the log device then 6021 * try opening the pool after clearing the 6022 * log state. 6023 */ 6024 mutex_enter(&spa_namespace_lock); 6025 if ((spa = spa_lookup(target)) != NULL && 6026 spa->spa_log_state == SPA_LOG_MISSING) { 6027 spa->spa_log_state = SPA_LOG_CLEAR; 6028 error = 0; 6029 } 6030 mutex_exit(&spa_namespace_lock); 6031 6032 if (!error) { 6033 error = spa_open_rewind(target, &spa, 6034 FTAG, policy, NULL); 6035 } 6036 } 6037 } else { 6038 zdb_set_skip_mmp(target); 6039 error = open_objset(target, DMU_OST_ANY, FTAG, &os); 6040 } 6041 } 6042 nvlist_free(policy); 6043 6044 if (error) 6045 fatal("can't open '%s': %s", target, strerror(error)); 6046 6047 argv++; 6048 argc--; 6049 if (!dump_opt['R']) { 6050 if (argc > 0) { 6051 zopt_objects = argc; 6052 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 6053 for (unsigned i = 0; i < zopt_objects; i++) { 6054 errno = 0; 6055 zopt_object[i] = strtoull(argv[i], NULL, 0); 6056 if (zopt_object[i] == 0 && errno != 0) 6057 fatal("bad number %s: %s", 6058 argv[i], strerror(errno)); 6059 } 6060 } 6061 if (os != NULL) { 6062 dump_dir(os); 6063 } else if (zopt_objects > 0 && !dump_opt['m']) { 6064 dump_dir(spa->spa_meta_objset); 6065 } else { 6066 dump_zpool(spa); 6067 } 6068 } else { 6069 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 6070 flagbits['c'] = ZDB_FLAG_CHECKSUM; 6071 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 6072 flagbits['e'] = ZDB_FLAG_BSWAP; 6073 flagbits['g'] = ZDB_FLAG_GBH; 6074 flagbits['i'] = ZDB_FLAG_INDIRECT; 6075 flagbits['p'] = ZDB_FLAG_PHYS; 6076 flagbits['r'] = ZDB_FLAG_RAW; 6077 6078 for (int i = 0; i < argc; i++) 6079 zdb_read_block(argv[i], spa); 6080 } 6081 6082 if (dump_opt['k']) { 6083 free(checkpoint_pool); 6084 if (!target_is_spa) 6085 free(checkpoint_target); 6086 } 6087 6088 if (os != NULL) 6089 close_objset(os, FTAG); 6090 else 6091 spa_close(spa, FTAG); 6092 6093 fuid_table_destroy(); 6094 6095 dump_debug_buffer(); 6096 6097 libzfs_fini(g_zfs); 6098 kernel_fini(); 6099 6100 return (error); 6101 } 6102