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