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) 2012, 2014 by Delphix. All rights reserved. 25 */ 26 27 #include <stdio.h> 28 #include <unistd.h> 29 #include <stdio_ext.h> 30 #include <stdlib.h> 31 #include <ctype.h> 32 #include <sys/zfs_context.h> 33 #include <sys/spa.h> 34 #include <sys/spa_impl.h> 35 #include <sys/dmu.h> 36 #include <sys/zap.h> 37 #include <sys/fs/zfs.h> 38 #include <sys/zfs_znode.h> 39 #include <sys/zfs_sa.h> 40 #include <sys/sa.h> 41 #include <sys/sa_impl.h> 42 #include <sys/vdev.h> 43 #include <sys/vdev_impl.h> 44 #include <sys/metaslab_impl.h> 45 #include <sys/dmu_objset.h> 46 #include <sys/dsl_dir.h> 47 #include <sys/dsl_dataset.h> 48 #include <sys/dsl_pool.h> 49 #include <sys/dbuf.h> 50 #include <sys/zil.h> 51 #include <sys/zil_impl.h> 52 #include <sys/stat.h> 53 #include <sys/resource.h> 54 #include <sys/dmu_traverse.h> 55 #include <sys/zio_checksum.h> 56 #include <sys/zio_compress.h> 57 #include <sys/zfs_fuid.h> 58 #include <sys/arc.h> 59 #include <sys/ddt.h> 60 #include <sys/zfeature.h> 61 #include <zfs_comutil.h> 62 #undef ZFS_MAXNAMELEN 63 #undef verify 64 #include <libzfs.h> 65 66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77 #ifndef lint 78 extern int zfs_recover; 79 #else 80 int zfs_recover; 81 #endif 82 83 const char cmdname[] = "zdb"; 84 uint8_t dump_opt[256]; 85 86 typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 87 88 extern void dump_intent_log(zilog_t *); 89 uint64_t *zopt_object = NULL; 90 int zopt_objects = 0; 91 libzfs_handle_t *g_zfs; 92 uint64_t max_inflight = 200; 93 94 /* 95 * These libumem hooks provide a reasonable set of defaults for the allocator's 96 * debugging facilities. 97 */ 98 const char * 99 _umem_debug_init() 100 { 101 return ("default,verbose"); /* $UMEM_DEBUG setting */ 102 } 103 104 const char * 105 _umem_logging_init(void) 106 { 107 return ("fail,contents"); /* $UMEM_LOGGING setting */ 108 } 109 110 static void 111 usage(void) 112 { 113 (void) fprintf(stderr, 114 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] " 115 "[-U config] [-M inflight I/Os] poolname [object...]\n" 116 " %s [-divPA] [-e -p path...] [-U config] dataset " 117 "[object...]\n" 118 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 119 "poolname [vdev [metaslab...]]\n" 120 " %s -R [-A] [-e [-p path...]] poolname " 121 "vdev:offset:size[:flags]\n" 122 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 123 " %s -l [-uA] device\n" 124 " %s -C [-A] [-U config]\n\n", 125 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 126 127 (void) fprintf(stderr, " Dataset name must include at least one " 128 "separator character '/' or '@'\n"); 129 (void) fprintf(stderr, " If dataset name is specified, only that " 130 "dataset is dumped\n"); 131 (void) fprintf(stderr, " If object numbers are specified, only " 132 "those objects are dumped\n\n"); 133 (void) fprintf(stderr, " Options to control amount of output:\n"); 134 (void) fprintf(stderr, " -u uberblock\n"); 135 (void) fprintf(stderr, " -d dataset(s)\n"); 136 (void) fprintf(stderr, " -i intent logs\n"); 137 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 138 (void) fprintf(stderr, " -h pool history\n"); 139 (void) fprintf(stderr, " -b block statistics\n"); 140 (void) fprintf(stderr, " -m metaslabs\n"); 141 (void) fprintf(stderr, " -c checksum all metadata (twice for " 142 "all data) blocks\n"); 143 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 144 (void) fprintf(stderr, " -D dedup statistics\n"); 145 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 146 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 147 (void) fprintf(stderr, " -l dump label contents\n"); 148 (void) fprintf(stderr, " -L disable leak tracking (do not " 149 "load spacemaps)\n"); 150 (void) fprintf(stderr, " -R read and display block from a " 151 "device\n\n"); 152 (void) fprintf(stderr, " Below options are intended for use " 153 "with other options (except -l):\n"); 154 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 155 "panic recovery (-AA) or both (-AAA)\n"); 156 (void) fprintf(stderr, " -F attempt automatic rewind within " 157 "safe range of transaction groups\n"); 158 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 159 "cachefile\n"); 160 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 161 "work with dataset)\n"); 162 (void) fprintf(stderr, " -e pool is exported/destroyed/" 163 "has altroot/not in a cachefile\n"); 164 (void) fprintf(stderr, " -p <path> -- use one or more with " 165 "-e to specify path to vdev dir\n"); 166 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 167 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 168 "searching for uberblocks\n"); 169 (void) fprintf(stderr, " -M <number of inflight I/Os> -- " 170 "specify the maximum number of checksumming I/Os [default is 200]"); 171 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 172 "to make only that option verbose\n"); 173 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 174 exit(1); 175 } 176 177 /* 178 * Called for usage errors that are discovered after a call to spa_open(), 179 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 180 */ 181 182 static void 183 fatal(const char *fmt, ...) 184 { 185 va_list ap; 186 187 va_start(ap, fmt); 188 (void) fprintf(stderr, "%s: ", cmdname); 189 (void) vfprintf(stderr, fmt, ap); 190 va_end(ap); 191 (void) fprintf(stderr, "\n"); 192 193 exit(1); 194 } 195 196 /* ARGSUSED */ 197 static void 198 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 199 { 200 nvlist_t *nv; 201 size_t nvsize = *(uint64_t *)data; 202 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 203 204 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 205 206 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 207 208 umem_free(packed, nvsize); 209 210 dump_nvlist(nv, 8); 211 212 nvlist_free(nv); 213 } 214 215 /* ARGSUSED */ 216 static void 217 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 218 { 219 spa_history_phys_t *shp = data; 220 221 if (shp == NULL) 222 return; 223 224 (void) printf("\t\tpool_create_len = %llu\n", 225 (u_longlong_t)shp->sh_pool_create_len); 226 (void) printf("\t\tphys_max_off = %llu\n", 227 (u_longlong_t)shp->sh_phys_max_off); 228 (void) printf("\t\tbof = %llu\n", 229 (u_longlong_t)shp->sh_bof); 230 (void) printf("\t\teof = %llu\n", 231 (u_longlong_t)shp->sh_eof); 232 (void) printf("\t\trecords_lost = %llu\n", 233 (u_longlong_t)shp->sh_records_lost); 234 } 235 236 static void 237 zdb_nicenum(uint64_t num, char *buf) 238 { 239 if (dump_opt['P']) 240 (void) sprintf(buf, "%llu", (longlong_t)num); 241 else 242 nicenum(num, buf); 243 } 244 245 const char histo_stars[] = "****************************************"; 246 const int histo_width = sizeof (histo_stars) - 1; 247 248 static void 249 dump_histogram(const uint64_t *histo, int size, int offset) 250 { 251 int i; 252 int minidx = size - 1; 253 int maxidx = 0; 254 uint64_t max = 0; 255 256 for (i = 0; i < size; i++) { 257 if (histo[i] > max) 258 max = histo[i]; 259 if (histo[i] > 0 && i > maxidx) 260 maxidx = i; 261 if (histo[i] > 0 && i < minidx) 262 minidx = i; 263 } 264 265 if (max < histo_width) 266 max = histo_width; 267 268 for (i = minidx; i <= maxidx; i++) { 269 (void) printf("\t\t\t%3u: %6llu %s\n", 270 i + offset, (u_longlong_t)histo[i], 271 &histo_stars[(max - histo[i]) * histo_width / max]); 272 } 273 } 274 275 static void 276 dump_zap_stats(objset_t *os, uint64_t object) 277 { 278 int error; 279 zap_stats_t zs; 280 281 error = zap_get_stats(os, object, &zs); 282 if (error) 283 return; 284 285 if (zs.zs_ptrtbl_len == 0) { 286 ASSERT(zs.zs_num_blocks == 1); 287 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 288 (u_longlong_t)zs.zs_blocksize, 289 (u_longlong_t)zs.zs_num_entries); 290 return; 291 } 292 293 (void) printf("\tFat ZAP stats:\n"); 294 295 (void) printf("\t\tPointer table:\n"); 296 (void) printf("\t\t\t%llu elements\n", 297 (u_longlong_t)zs.zs_ptrtbl_len); 298 (void) printf("\t\t\tzt_blk: %llu\n", 299 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 300 (void) printf("\t\t\tzt_numblks: %llu\n", 301 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 302 (void) printf("\t\t\tzt_shift: %llu\n", 303 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 304 (void) printf("\t\t\tzt_blks_copied: %llu\n", 305 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 306 (void) printf("\t\t\tzt_nextblk: %llu\n", 307 (u_longlong_t)zs.zs_ptrtbl_nextblk); 308 309 (void) printf("\t\tZAP entries: %llu\n", 310 (u_longlong_t)zs.zs_num_entries); 311 (void) printf("\t\tLeaf blocks: %llu\n", 312 (u_longlong_t)zs.zs_num_leafs); 313 (void) printf("\t\tTotal blocks: %llu\n", 314 (u_longlong_t)zs.zs_num_blocks); 315 (void) printf("\t\tzap_block_type: 0x%llx\n", 316 (u_longlong_t)zs.zs_block_type); 317 (void) printf("\t\tzap_magic: 0x%llx\n", 318 (u_longlong_t)zs.zs_magic); 319 (void) printf("\t\tzap_salt: 0x%llx\n", 320 (u_longlong_t)zs.zs_salt); 321 322 (void) printf("\t\tLeafs with 2^n pointers:\n"); 323 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 324 325 (void) printf("\t\tBlocks with n*5 entries:\n"); 326 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 327 328 (void) printf("\t\tBlocks n/10 full:\n"); 329 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 330 331 (void) printf("\t\tEntries with n chunks:\n"); 332 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 333 334 (void) printf("\t\tBuckets with n entries:\n"); 335 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 336 } 337 338 /*ARGSUSED*/ 339 static void 340 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 341 { 342 } 343 344 /*ARGSUSED*/ 345 static void 346 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 347 { 348 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 349 } 350 351 /*ARGSUSED*/ 352 void 353 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 354 { 355 } 356 357 /*ARGSUSED*/ 358 static void 359 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 360 { 361 } 362 363 /*ARGSUSED*/ 364 static void 365 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 366 { 367 zap_cursor_t zc; 368 zap_attribute_t attr; 369 void *prop; 370 int i; 371 372 dump_zap_stats(os, object); 373 (void) printf("\n"); 374 375 for (zap_cursor_init(&zc, os, object); 376 zap_cursor_retrieve(&zc, &attr) == 0; 377 zap_cursor_advance(&zc)) { 378 (void) printf("\t\t%s = ", attr.za_name); 379 if (attr.za_num_integers == 0) { 380 (void) printf("\n"); 381 continue; 382 } 383 prop = umem_zalloc(attr.za_num_integers * 384 attr.za_integer_length, UMEM_NOFAIL); 385 (void) zap_lookup(os, object, attr.za_name, 386 attr.za_integer_length, attr.za_num_integers, prop); 387 if (attr.za_integer_length == 1) { 388 (void) printf("%s", (char *)prop); 389 } else { 390 for (i = 0; i < attr.za_num_integers; i++) { 391 switch (attr.za_integer_length) { 392 case 2: 393 (void) printf("%u ", 394 ((uint16_t *)prop)[i]); 395 break; 396 case 4: 397 (void) printf("%u ", 398 ((uint32_t *)prop)[i]); 399 break; 400 case 8: 401 (void) printf("%lld ", 402 (u_longlong_t)((int64_t *)prop)[i]); 403 break; 404 } 405 } 406 } 407 (void) printf("\n"); 408 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 409 } 410 zap_cursor_fini(&zc); 411 } 412 413 /*ARGSUSED*/ 414 static void 415 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 416 { 417 dump_zap_stats(os, object); 418 /* contents are printed elsewhere, properly decoded */ 419 } 420 421 /*ARGSUSED*/ 422 static void 423 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 424 { 425 zap_cursor_t zc; 426 zap_attribute_t attr; 427 428 dump_zap_stats(os, object); 429 (void) printf("\n"); 430 431 for (zap_cursor_init(&zc, os, object); 432 zap_cursor_retrieve(&zc, &attr) == 0; 433 zap_cursor_advance(&zc)) { 434 (void) printf("\t\t%s = ", attr.za_name); 435 if (attr.za_num_integers == 0) { 436 (void) printf("\n"); 437 continue; 438 } 439 (void) printf(" %llx : [%d:%d:%d]\n", 440 (u_longlong_t)attr.za_first_integer, 441 (int)ATTR_LENGTH(attr.za_first_integer), 442 (int)ATTR_BSWAP(attr.za_first_integer), 443 (int)ATTR_NUM(attr.za_first_integer)); 444 } 445 zap_cursor_fini(&zc); 446 } 447 448 /*ARGSUSED*/ 449 static void 450 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 451 { 452 zap_cursor_t zc; 453 zap_attribute_t attr; 454 uint16_t *layout_attrs; 455 int i; 456 457 dump_zap_stats(os, object); 458 (void) printf("\n"); 459 460 for (zap_cursor_init(&zc, os, object); 461 zap_cursor_retrieve(&zc, &attr) == 0; 462 zap_cursor_advance(&zc)) { 463 (void) printf("\t\t%s = [", attr.za_name); 464 if (attr.za_num_integers == 0) { 465 (void) printf("\n"); 466 continue; 467 } 468 469 VERIFY(attr.za_integer_length == 2); 470 layout_attrs = umem_zalloc(attr.za_num_integers * 471 attr.za_integer_length, UMEM_NOFAIL); 472 473 VERIFY(zap_lookup(os, object, attr.za_name, 474 attr.za_integer_length, 475 attr.za_num_integers, layout_attrs) == 0); 476 477 for (i = 0; i != attr.za_num_integers; i++) 478 (void) printf(" %d ", (int)layout_attrs[i]); 479 (void) printf("]\n"); 480 umem_free(layout_attrs, 481 attr.za_num_integers * attr.za_integer_length); 482 } 483 zap_cursor_fini(&zc); 484 } 485 486 /*ARGSUSED*/ 487 static void 488 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 489 { 490 zap_cursor_t zc; 491 zap_attribute_t attr; 492 const char *typenames[] = { 493 /* 0 */ "not specified", 494 /* 1 */ "FIFO", 495 /* 2 */ "Character Device", 496 /* 3 */ "3 (invalid)", 497 /* 4 */ "Directory", 498 /* 5 */ "5 (invalid)", 499 /* 6 */ "Block Device", 500 /* 7 */ "7 (invalid)", 501 /* 8 */ "Regular File", 502 /* 9 */ "9 (invalid)", 503 /* 10 */ "Symbolic Link", 504 /* 11 */ "11 (invalid)", 505 /* 12 */ "Socket", 506 /* 13 */ "Door", 507 /* 14 */ "Event Port", 508 /* 15 */ "15 (invalid)", 509 }; 510 511 dump_zap_stats(os, object); 512 (void) printf("\n"); 513 514 for (zap_cursor_init(&zc, os, object); 515 zap_cursor_retrieve(&zc, &attr) == 0; 516 zap_cursor_advance(&zc)) { 517 (void) printf("\t\t%s = %lld (type: %s)\n", 518 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 519 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 520 } 521 zap_cursor_fini(&zc); 522 } 523 524 int 525 get_dtl_refcount(vdev_t *vd) 526 { 527 int refcount = 0; 528 529 if (vd->vdev_ops->vdev_op_leaf) { 530 space_map_t *sm = vd->vdev_dtl_sm; 531 532 if (sm != NULL && 533 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 534 return (1); 535 return (0); 536 } 537 538 for (int c = 0; c < vd->vdev_children; c++) 539 refcount += get_dtl_refcount(vd->vdev_child[c]); 540 return (refcount); 541 } 542 543 int 544 get_metaslab_refcount(vdev_t *vd) 545 { 546 int refcount = 0; 547 548 if (vd->vdev_top == vd) { 549 for (int m = 0; m < vd->vdev_ms_count; m++) { 550 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 551 552 if (sm != NULL && 553 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 554 refcount++; 555 } 556 } 557 for (int c = 0; c < vd->vdev_children; c++) 558 refcount += get_metaslab_refcount(vd->vdev_child[c]); 559 560 return (refcount); 561 } 562 563 static int 564 verify_spacemap_refcounts(spa_t *spa) 565 { 566 uint64_t expected_refcount = 0; 567 uint64_t actual_refcount; 568 569 (void) feature_get_refcount(spa, 570 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 571 &expected_refcount); 572 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 573 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 574 575 if (expected_refcount != actual_refcount) { 576 (void) printf("space map refcount mismatch: expected %lld != " 577 "actual %lld\n", 578 (longlong_t)expected_refcount, 579 (longlong_t)actual_refcount); 580 return (2); 581 } 582 return (0); 583 } 584 585 static void 586 dump_spacemap(objset_t *os, space_map_t *sm) 587 { 588 uint64_t alloc, offset, entry; 589 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 590 "INVALID", "INVALID", "INVALID", "INVALID" }; 591 592 if (sm == NULL) 593 return; 594 595 /* 596 * Print out the freelist entries in both encoded and decoded form. 597 */ 598 alloc = 0; 599 for (offset = 0; offset < space_map_length(sm); 600 offset += sizeof (entry)) { 601 uint8_t mapshift = sm->sm_shift; 602 603 VERIFY0(dmu_read(os, space_map_object(sm), offset, 604 sizeof (entry), &entry, DMU_READ_PREFETCH)); 605 if (SM_DEBUG_DECODE(entry)) { 606 607 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 608 (u_longlong_t)(offset / sizeof (entry)), 609 ddata[SM_DEBUG_ACTION_DECODE(entry)], 610 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 611 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 612 } else { 613 (void) printf("\t [%6llu] %c range:" 614 " %010llx-%010llx size: %06llx\n", 615 (u_longlong_t)(offset / sizeof (entry)), 616 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 617 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 618 mapshift) + sm->sm_start), 619 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 620 mapshift) + sm->sm_start + 621 (SM_RUN_DECODE(entry) << mapshift)), 622 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 623 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 624 alloc += SM_RUN_DECODE(entry) << mapshift; 625 else 626 alloc -= SM_RUN_DECODE(entry) << mapshift; 627 } 628 } 629 if (alloc != space_map_allocated(sm)) { 630 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 631 "with space map summary (%llu)\n", 632 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 633 } 634 } 635 636 static void 637 dump_metaslab_stats(metaslab_t *msp) 638 { 639 char maxbuf[32]; 640 range_tree_t *rt = msp->ms_tree; 641 avl_tree_t *t = &msp->ms_size_tree; 642 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 643 644 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 645 646 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 647 "segments", avl_numnodes(t), "maxsize", maxbuf, 648 "freepct", free_pct); 649 (void) printf("\tIn-memory histogram:\n"); 650 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 651 } 652 653 static void 654 dump_metaslab(metaslab_t *msp) 655 { 656 vdev_t *vd = msp->ms_group->mg_vd; 657 spa_t *spa = vd->vdev_spa; 658 space_map_t *sm = msp->ms_sm; 659 char freebuf[32]; 660 661 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 662 663 (void) printf( 664 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 665 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 666 (u_longlong_t)space_map_object(sm), freebuf); 667 668 if (dump_opt['m'] > 2 && !dump_opt['L']) { 669 mutex_enter(&msp->ms_lock); 670 metaslab_load_wait(msp); 671 if (!msp->ms_loaded) { 672 VERIFY0(metaslab_load(msp)); 673 range_tree_stat_verify(msp->ms_tree); 674 } 675 dump_metaslab_stats(msp); 676 metaslab_unload(msp); 677 mutex_exit(&msp->ms_lock); 678 } 679 680 if (dump_opt['m'] > 1 && sm != NULL && 681 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 682 /* 683 * The space map histogram represents free space in chunks 684 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 685 */ 686 (void) printf("\tOn-disk histogram:\n"); 687 dump_histogram(sm->sm_phys->smp_histogram, 688 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift); 689 } 690 691 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 692 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 693 694 mutex_enter(&msp->ms_lock); 695 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 696 mutex_exit(&msp->ms_lock); 697 } 698 } 699 700 static void 701 print_vdev_metaslab_header(vdev_t *vd) 702 { 703 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 704 (u_longlong_t)vd->vdev_id, 705 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 706 "offset", "spacemap", "free"); 707 (void) printf("\t%15s %19s %15s %10s\n", 708 "---------------", "-------------------", 709 "---------------", "-------------"); 710 } 711 712 static void 713 dump_metaslabs(spa_t *spa) 714 { 715 vdev_t *vd, *rvd = spa->spa_root_vdev; 716 uint64_t m, c = 0, children = rvd->vdev_children; 717 718 (void) printf("\nMetaslabs:\n"); 719 720 if (!dump_opt['d'] && zopt_objects > 0) { 721 c = zopt_object[0]; 722 723 if (c >= children) 724 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 725 726 if (zopt_objects > 1) { 727 vd = rvd->vdev_child[c]; 728 print_vdev_metaslab_header(vd); 729 730 for (m = 1; m < zopt_objects; m++) { 731 if (zopt_object[m] < vd->vdev_ms_count) 732 dump_metaslab( 733 vd->vdev_ms[zopt_object[m]]); 734 else 735 (void) fprintf(stderr, "bad metaslab " 736 "number %llu\n", 737 (u_longlong_t)zopt_object[m]); 738 } 739 (void) printf("\n"); 740 return; 741 } 742 children = c + 1; 743 } 744 for (; c < children; c++) { 745 vd = rvd->vdev_child[c]; 746 print_vdev_metaslab_header(vd); 747 748 for (m = 0; m < vd->vdev_ms_count; m++) 749 dump_metaslab(vd->vdev_ms[m]); 750 (void) printf("\n"); 751 } 752 } 753 754 static void 755 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 756 { 757 const ddt_phys_t *ddp = dde->dde_phys; 758 const ddt_key_t *ddk = &dde->dde_key; 759 char *types[4] = { "ditto", "single", "double", "triple" }; 760 char blkbuf[BP_SPRINTF_LEN]; 761 blkptr_t blk; 762 763 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 764 if (ddp->ddp_phys_birth == 0) 765 continue; 766 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 767 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 768 (void) printf("index %llx refcnt %llu %s %s\n", 769 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 770 types[p], blkbuf); 771 } 772 } 773 774 static void 775 dump_dedup_ratio(const ddt_stat_t *dds) 776 { 777 double rL, rP, rD, D, dedup, compress, copies; 778 779 if (dds->dds_blocks == 0) 780 return; 781 782 rL = (double)dds->dds_ref_lsize; 783 rP = (double)dds->dds_ref_psize; 784 rD = (double)dds->dds_ref_dsize; 785 D = (double)dds->dds_dsize; 786 787 dedup = rD / D; 788 compress = rL / rP; 789 copies = rD / rP; 790 791 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 792 "dedup * compress / copies = %.2f\n\n", 793 dedup, compress, copies, dedup * compress / copies); 794 } 795 796 static void 797 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 798 { 799 char name[DDT_NAMELEN]; 800 ddt_entry_t dde; 801 uint64_t walk = 0; 802 dmu_object_info_t doi; 803 uint64_t count, dspace, mspace; 804 int error; 805 806 error = ddt_object_info(ddt, type, class, &doi); 807 808 if (error == ENOENT) 809 return; 810 ASSERT(error == 0); 811 812 if ((count = ddt_object_count(ddt, type, class)) == 0) 813 return; 814 815 dspace = doi.doi_physical_blocks_512 << 9; 816 mspace = doi.doi_fill_count * doi.doi_data_block_size; 817 818 ddt_object_name(ddt, type, class, name); 819 820 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 821 name, 822 (u_longlong_t)count, 823 (u_longlong_t)(dspace / count), 824 (u_longlong_t)(mspace / count)); 825 826 if (dump_opt['D'] < 3) 827 return; 828 829 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 830 831 if (dump_opt['D'] < 4) 832 return; 833 834 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 835 return; 836 837 (void) printf("%s contents:\n\n", name); 838 839 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 840 dump_dde(ddt, &dde, walk); 841 842 ASSERT(error == ENOENT); 843 844 (void) printf("\n"); 845 } 846 847 static void 848 dump_all_ddts(spa_t *spa) 849 { 850 ddt_histogram_t ddh_total = { 0 }; 851 ddt_stat_t dds_total = { 0 }; 852 853 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 854 ddt_t *ddt = spa->spa_ddt[c]; 855 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 856 for (enum ddt_class class = 0; class < DDT_CLASSES; 857 class++) { 858 dump_ddt(ddt, type, class); 859 } 860 } 861 } 862 863 ddt_get_dedup_stats(spa, &dds_total); 864 865 if (dds_total.dds_blocks == 0) { 866 (void) printf("All DDTs are empty\n"); 867 return; 868 } 869 870 (void) printf("\n"); 871 872 if (dump_opt['D'] > 1) { 873 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 874 ddt_get_dedup_histogram(spa, &ddh_total); 875 zpool_dump_ddt(&dds_total, &ddh_total); 876 } 877 878 dump_dedup_ratio(&dds_total); 879 } 880 881 static void 882 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 883 { 884 char *prefix = arg; 885 886 (void) printf("%s [%llu,%llu) length %llu\n", 887 prefix, 888 (u_longlong_t)start, 889 (u_longlong_t)(start + size), 890 (u_longlong_t)(size)); 891 } 892 893 static void 894 dump_dtl(vdev_t *vd, int indent) 895 { 896 spa_t *spa = vd->vdev_spa; 897 boolean_t required; 898 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 899 char prefix[256]; 900 901 spa_vdev_state_enter(spa, SCL_NONE); 902 required = vdev_dtl_required(vd); 903 (void) spa_vdev_state_exit(spa, NULL, 0); 904 905 if (indent == 0) 906 (void) printf("\nDirty time logs:\n\n"); 907 908 (void) printf("\t%*s%s [%s]\n", indent, "", 909 vd->vdev_path ? vd->vdev_path : 910 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 911 required ? "DTL-required" : "DTL-expendable"); 912 913 for (int t = 0; t < DTL_TYPES; t++) { 914 range_tree_t *rt = vd->vdev_dtl[t]; 915 if (range_tree_space(rt) == 0) 916 continue; 917 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 918 indent + 2, "", name[t]); 919 mutex_enter(rt->rt_lock); 920 range_tree_walk(rt, dump_dtl_seg, prefix); 921 mutex_exit(rt->rt_lock); 922 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 923 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 924 } 925 926 for (int c = 0; c < vd->vdev_children; c++) 927 dump_dtl(vd->vdev_child[c], indent + 4); 928 } 929 930 static void 931 dump_history(spa_t *spa) 932 { 933 nvlist_t **events = NULL; 934 char buf[SPA_MAXBLOCKSIZE]; 935 uint64_t resid, len, off = 0; 936 uint_t num = 0; 937 int error; 938 time_t tsec; 939 struct tm t; 940 char tbuf[30]; 941 char internalstr[MAXPATHLEN]; 942 943 do { 944 len = sizeof (buf); 945 946 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 947 (void) fprintf(stderr, "Unable to read history: " 948 "error %d\n", error); 949 return; 950 } 951 952 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 953 break; 954 955 off -= resid; 956 } while (len != 0); 957 958 (void) printf("\nHistory:\n"); 959 for (int i = 0; i < num; i++) { 960 uint64_t time, txg, ievent; 961 char *cmd, *intstr; 962 boolean_t printed = B_FALSE; 963 964 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 965 &time) != 0) 966 goto next; 967 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 968 &cmd) != 0) { 969 if (nvlist_lookup_uint64(events[i], 970 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 971 goto next; 972 verify(nvlist_lookup_uint64(events[i], 973 ZPOOL_HIST_TXG, &txg) == 0); 974 verify(nvlist_lookup_string(events[i], 975 ZPOOL_HIST_INT_STR, &intstr) == 0); 976 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 977 goto next; 978 979 (void) snprintf(internalstr, 980 sizeof (internalstr), 981 "[internal %s txg:%lld] %s", 982 zfs_history_event_names[ievent], txg, 983 intstr); 984 cmd = internalstr; 985 } 986 tsec = time; 987 (void) localtime_r(&tsec, &t); 988 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 989 (void) printf("%s %s\n", tbuf, cmd); 990 printed = B_TRUE; 991 992 next: 993 if (dump_opt['h'] > 1) { 994 if (!printed) 995 (void) printf("unrecognized record:\n"); 996 dump_nvlist(events[i], 2); 997 } 998 } 999 } 1000 1001 /*ARGSUSED*/ 1002 static void 1003 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1004 { 1005 } 1006 1007 static uint64_t 1008 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 1009 { 1010 if (dnp == NULL) { 1011 ASSERT(zb->zb_level < 0); 1012 if (zb->zb_object == 0) 1013 return (zb->zb_blkid); 1014 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1015 } 1016 1017 ASSERT(zb->zb_level >= 0); 1018 1019 return ((zb->zb_blkid << 1020 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1021 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1022 } 1023 1024 static void 1025 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1026 { 1027 const dva_t *dva = bp->blk_dva; 1028 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1029 1030 if (dump_opt['b'] >= 6) { 1031 snprintf_blkptr(blkbuf, buflen, bp); 1032 return; 1033 } 1034 1035 blkbuf[0] = '\0'; 1036 1037 for (int i = 0; i < ndvas; i++) 1038 (void) snprintf(blkbuf + strlen(blkbuf), 1039 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1040 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1041 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1042 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1043 1044 if (BP_IS_HOLE(bp)) { 1045 (void) snprintf(blkbuf + strlen(blkbuf), 1046 buflen - strlen(blkbuf), "B=%llu", 1047 (u_longlong_t)bp->blk_birth); 1048 } else { 1049 (void) snprintf(blkbuf + strlen(blkbuf), 1050 buflen - strlen(blkbuf), 1051 "%llxL/%llxP F=%llu B=%llu/%llu", 1052 (u_longlong_t)BP_GET_LSIZE(bp), 1053 (u_longlong_t)BP_GET_PSIZE(bp), 1054 (u_longlong_t)bp->blk_fill, 1055 (u_longlong_t)bp->blk_birth, 1056 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1057 } 1058 } 1059 1060 static void 1061 print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1062 const dnode_phys_t *dnp) 1063 { 1064 char blkbuf[BP_SPRINTF_LEN]; 1065 int l; 1066 1067 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1068 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1069 1070 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1071 1072 ASSERT(zb->zb_level >= 0); 1073 1074 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1075 if (l == zb->zb_level) { 1076 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1077 } else { 1078 (void) printf(" "); 1079 } 1080 } 1081 1082 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1083 (void) printf("%s\n", blkbuf); 1084 } 1085 1086 static int 1087 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1088 blkptr_t *bp, const zbookmark_t *zb) 1089 { 1090 int err = 0; 1091 1092 if (bp->blk_birth == 0) 1093 return (0); 1094 1095 print_indirect(bp, zb, dnp); 1096 1097 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1098 uint32_t flags = ARC_WAIT; 1099 int i; 1100 blkptr_t *cbp; 1101 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1102 arc_buf_t *buf; 1103 uint64_t fill = 0; 1104 1105 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1106 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1107 if (err) 1108 return (err); 1109 ASSERT(buf->b_data); 1110 1111 /* recursively visit blocks below this */ 1112 cbp = buf->b_data; 1113 for (i = 0; i < epb; i++, cbp++) { 1114 zbookmark_t czb; 1115 1116 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1117 zb->zb_level - 1, 1118 zb->zb_blkid * epb + i); 1119 err = visit_indirect(spa, dnp, cbp, &czb); 1120 if (err) 1121 break; 1122 fill += cbp->blk_fill; 1123 } 1124 if (!err) 1125 ASSERT3U(fill, ==, bp->blk_fill); 1126 (void) arc_buf_remove_ref(buf, &buf); 1127 } 1128 1129 return (err); 1130 } 1131 1132 /*ARGSUSED*/ 1133 static void 1134 dump_indirect(dnode_t *dn) 1135 { 1136 dnode_phys_t *dnp = dn->dn_phys; 1137 int j; 1138 zbookmark_t czb; 1139 1140 (void) printf("Indirect blocks:\n"); 1141 1142 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1143 dn->dn_object, dnp->dn_nlevels - 1, 0); 1144 for (j = 0; j < dnp->dn_nblkptr; j++) { 1145 czb.zb_blkid = j; 1146 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1147 &dnp->dn_blkptr[j], &czb); 1148 } 1149 1150 (void) printf("\n"); 1151 } 1152 1153 /*ARGSUSED*/ 1154 static void 1155 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1156 { 1157 dsl_dir_phys_t *dd = data; 1158 time_t crtime; 1159 char nice[32]; 1160 1161 if (dd == NULL) 1162 return; 1163 1164 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1165 1166 crtime = dd->dd_creation_time; 1167 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1168 (void) printf("\t\thead_dataset_obj = %llu\n", 1169 (u_longlong_t)dd->dd_head_dataset_obj); 1170 (void) printf("\t\tparent_dir_obj = %llu\n", 1171 (u_longlong_t)dd->dd_parent_obj); 1172 (void) printf("\t\torigin_obj = %llu\n", 1173 (u_longlong_t)dd->dd_origin_obj); 1174 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1175 (u_longlong_t)dd->dd_child_dir_zapobj); 1176 zdb_nicenum(dd->dd_used_bytes, nice); 1177 (void) printf("\t\tused_bytes = %s\n", nice); 1178 zdb_nicenum(dd->dd_compressed_bytes, nice); 1179 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1180 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1181 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1182 zdb_nicenum(dd->dd_quota, nice); 1183 (void) printf("\t\tquota = %s\n", nice); 1184 zdb_nicenum(dd->dd_reserved, nice); 1185 (void) printf("\t\treserved = %s\n", nice); 1186 (void) printf("\t\tprops_zapobj = %llu\n", 1187 (u_longlong_t)dd->dd_props_zapobj); 1188 (void) printf("\t\tdeleg_zapobj = %llu\n", 1189 (u_longlong_t)dd->dd_deleg_zapobj); 1190 (void) printf("\t\tflags = %llx\n", 1191 (u_longlong_t)dd->dd_flags); 1192 1193 #define DO(which) \ 1194 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1195 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1196 DO(HEAD); 1197 DO(SNAP); 1198 DO(CHILD); 1199 DO(CHILD_RSRV); 1200 DO(REFRSRV); 1201 #undef DO 1202 } 1203 1204 /*ARGSUSED*/ 1205 static void 1206 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1207 { 1208 dsl_dataset_phys_t *ds = data; 1209 time_t crtime; 1210 char used[32], compressed[32], uncompressed[32], unique[32]; 1211 char blkbuf[BP_SPRINTF_LEN]; 1212 1213 if (ds == NULL) 1214 return; 1215 1216 ASSERT(size == sizeof (*ds)); 1217 crtime = ds->ds_creation_time; 1218 zdb_nicenum(ds->ds_referenced_bytes, used); 1219 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1220 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1221 zdb_nicenum(ds->ds_unique_bytes, unique); 1222 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1223 1224 (void) printf("\t\tdir_obj = %llu\n", 1225 (u_longlong_t)ds->ds_dir_obj); 1226 (void) printf("\t\tprev_snap_obj = %llu\n", 1227 (u_longlong_t)ds->ds_prev_snap_obj); 1228 (void) printf("\t\tprev_snap_txg = %llu\n", 1229 (u_longlong_t)ds->ds_prev_snap_txg); 1230 (void) printf("\t\tnext_snap_obj = %llu\n", 1231 (u_longlong_t)ds->ds_next_snap_obj); 1232 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1233 (u_longlong_t)ds->ds_snapnames_zapobj); 1234 (void) printf("\t\tnum_children = %llu\n", 1235 (u_longlong_t)ds->ds_num_children); 1236 (void) printf("\t\tuserrefs_obj = %llu\n", 1237 (u_longlong_t)ds->ds_userrefs_obj); 1238 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1239 (void) printf("\t\tcreation_txg = %llu\n", 1240 (u_longlong_t)ds->ds_creation_txg); 1241 (void) printf("\t\tdeadlist_obj = %llu\n", 1242 (u_longlong_t)ds->ds_deadlist_obj); 1243 (void) printf("\t\tused_bytes = %s\n", used); 1244 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1245 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1246 (void) printf("\t\tunique = %s\n", unique); 1247 (void) printf("\t\tfsid_guid = %llu\n", 1248 (u_longlong_t)ds->ds_fsid_guid); 1249 (void) printf("\t\tguid = %llu\n", 1250 (u_longlong_t)ds->ds_guid); 1251 (void) printf("\t\tflags = %llx\n", 1252 (u_longlong_t)ds->ds_flags); 1253 (void) printf("\t\tnext_clones_obj = %llu\n", 1254 (u_longlong_t)ds->ds_next_clones_obj); 1255 (void) printf("\t\tprops_obj = %llu\n", 1256 (u_longlong_t)ds->ds_props_obj); 1257 (void) printf("\t\tbp = %s\n", blkbuf); 1258 } 1259 1260 /* ARGSUSED */ 1261 static int 1262 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1263 { 1264 char blkbuf[BP_SPRINTF_LEN]; 1265 1266 if (bp->blk_birth != 0) { 1267 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1268 (void) printf("\t%s\n", blkbuf); 1269 } 1270 return (0); 1271 } 1272 1273 static void 1274 dump_bptree(objset_t *os, uint64_t obj, char *name) 1275 { 1276 char bytes[32]; 1277 bptree_phys_t *bt; 1278 dmu_buf_t *db; 1279 1280 if (dump_opt['d'] < 3) 1281 return; 1282 1283 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1284 bt = db->db_data; 1285 zdb_nicenum(bt->bt_bytes, bytes); 1286 (void) printf("\n %s: %llu datasets, %s\n", 1287 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1288 dmu_buf_rele(db, FTAG); 1289 1290 if (dump_opt['d'] < 5) 1291 return; 1292 1293 (void) printf("\n"); 1294 1295 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1296 } 1297 1298 /* ARGSUSED */ 1299 static int 1300 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1301 { 1302 char blkbuf[BP_SPRINTF_LEN]; 1303 1304 ASSERT(bp->blk_birth != 0); 1305 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1306 (void) printf("\t%s\n", blkbuf); 1307 return (0); 1308 } 1309 1310 static void 1311 dump_bpobj(bpobj_t *bpo, char *name, int indent) 1312 { 1313 char bytes[32]; 1314 char comp[32]; 1315 char uncomp[32]; 1316 1317 if (dump_opt['d'] < 3) 1318 return; 1319 1320 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1321 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1322 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1323 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1324 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1325 "%llu subobjs, %s (%s/%s comp)\n", 1326 indent * 8, name, 1327 (u_longlong_t)bpo->bpo_object, 1328 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1329 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1330 bytes, comp, uncomp); 1331 1332 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1333 uint64_t subobj; 1334 bpobj_t subbpo; 1335 int error; 1336 VERIFY0(dmu_read(bpo->bpo_os, 1337 bpo->bpo_phys->bpo_subobjs, 1338 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1339 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1340 if (error != 0) { 1341 (void) printf("ERROR %u while trying to open " 1342 "subobj id %llu\n", 1343 error, (u_longlong_t)subobj); 1344 continue; 1345 } 1346 dump_bpobj(&subbpo, "subobj", indent + 1); 1347 bpobj_close(&subbpo); 1348 } 1349 } else { 1350 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1351 indent * 8, name, 1352 (u_longlong_t)bpo->bpo_object, 1353 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1354 bytes); 1355 } 1356 1357 if (dump_opt['d'] < 5) 1358 return; 1359 1360 1361 if (indent == 0) { 1362 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1363 (void) printf("\n"); 1364 } 1365 } 1366 1367 static void 1368 dump_deadlist(dsl_deadlist_t *dl) 1369 { 1370 dsl_deadlist_entry_t *dle; 1371 uint64_t unused; 1372 char bytes[32]; 1373 char comp[32]; 1374 char uncomp[32]; 1375 1376 if (dump_opt['d'] < 3) 1377 return; 1378 1379 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1380 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1381 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1382 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1383 bytes, comp, uncomp); 1384 1385 if (dump_opt['d'] < 4) 1386 return; 1387 1388 (void) printf("\n"); 1389 1390 /* force the tree to be loaded */ 1391 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1392 1393 for (dle = avl_first(&dl->dl_tree); dle; 1394 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1395 if (dump_opt['d'] >= 5) { 1396 char buf[128]; 1397 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1398 (longlong_t)dle->dle_mintxg, 1399 (longlong_t)dle->dle_bpobj.bpo_object); 1400 1401 dump_bpobj(&dle->dle_bpobj, buf, 0); 1402 } else { 1403 (void) printf("mintxg %llu -> obj %llu\n", 1404 (longlong_t)dle->dle_mintxg, 1405 (longlong_t)dle->dle_bpobj.bpo_object); 1406 1407 } 1408 } 1409 } 1410 1411 static avl_tree_t idx_tree; 1412 static avl_tree_t domain_tree; 1413 static boolean_t fuid_table_loaded; 1414 static boolean_t sa_loaded; 1415 sa_attr_type_t *sa_attr_table; 1416 1417 static void 1418 fuid_table_destroy() 1419 { 1420 if (fuid_table_loaded) { 1421 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1422 fuid_table_loaded = B_FALSE; 1423 } 1424 } 1425 1426 /* 1427 * print uid or gid information. 1428 * For normal POSIX id just the id is printed in decimal format. 1429 * For CIFS files with FUID the fuid is printed in hex followed by 1430 * the domain-rid string. 1431 */ 1432 static void 1433 print_idstr(uint64_t id, const char *id_type) 1434 { 1435 if (FUID_INDEX(id)) { 1436 char *domain; 1437 1438 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1439 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1440 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1441 } else { 1442 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1443 } 1444 1445 } 1446 1447 static void 1448 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1449 { 1450 uint32_t uid_idx, gid_idx; 1451 1452 uid_idx = FUID_INDEX(uid); 1453 gid_idx = FUID_INDEX(gid); 1454 1455 /* Load domain table, if not already loaded */ 1456 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1457 uint64_t fuid_obj; 1458 1459 /* first find the fuid object. It lives in the master node */ 1460 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1461 8, 1, &fuid_obj) == 0); 1462 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1463 (void) zfs_fuid_table_load(os, fuid_obj, 1464 &idx_tree, &domain_tree); 1465 fuid_table_loaded = B_TRUE; 1466 } 1467 1468 print_idstr(uid, "uid"); 1469 print_idstr(gid, "gid"); 1470 } 1471 1472 /*ARGSUSED*/ 1473 static void 1474 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1475 { 1476 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1477 sa_handle_t *hdl; 1478 uint64_t xattr, rdev, gen; 1479 uint64_t uid, gid, mode, fsize, parent, links; 1480 uint64_t pflags; 1481 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1482 time_t z_crtime, z_atime, z_mtime, z_ctime; 1483 sa_bulk_attr_t bulk[12]; 1484 int idx = 0; 1485 int error; 1486 1487 if (!sa_loaded) { 1488 uint64_t sa_attrs = 0; 1489 uint64_t version; 1490 1491 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1492 8, 1, &version) == 0); 1493 if (version >= ZPL_VERSION_SA) { 1494 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1495 8, 1, &sa_attrs) == 0); 1496 } 1497 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1498 ZPL_END, &sa_attr_table)) != 0) { 1499 (void) printf("sa_setup failed errno %d, can't " 1500 "display znode contents\n", error); 1501 return; 1502 } 1503 sa_loaded = B_TRUE; 1504 } 1505 1506 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1507 (void) printf("Failed to get handle for SA znode\n"); 1508 return; 1509 } 1510 1511 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1512 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1513 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1514 &links, 8); 1515 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1516 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1517 &mode, 8); 1518 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1519 NULL, &parent, 8); 1520 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1521 &fsize, 8); 1522 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1523 acctm, 16); 1524 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1525 modtm, 16); 1526 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1527 crtm, 16); 1528 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1529 chgtm, 16); 1530 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1531 &pflags, 8); 1532 1533 if (sa_bulk_lookup(hdl, bulk, idx)) { 1534 (void) sa_handle_destroy(hdl); 1535 return; 1536 } 1537 1538 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1539 if (error != 0) { 1540 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1541 (u_longlong_t)object); 1542 } 1543 if (dump_opt['d'] < 3) { 1544 (void) printf("\t%s\n", path); 1545 (void) sa_handle_destroy(hdl); 1546 return; 1547 } 1548 1549 z_crtime = (time_t)crtm[0]; 1550 z_atime = (time_t)acctm[0]; 1551 z_mtime = (time_t)modtm[0]; 1552 z_ctime = (time_t)chgtm[0]; 1553 1554 (void) printf("\tpath %s\n", path); 1555 dump_uidgid(os, uid, gid); 1556 (void) printf("\tatime %s", ctime(&z_atime)); 1557 (void) printf("\tmtime %s", ctime(&z_mtime)); 1558 (void) printf("\tctime %s", ctime(&z_ctime)); 1559 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1560 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1561 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1562 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1563 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1564 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1565 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1566 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1567 sizeof (uint64_t)) == 0) 1568 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1569 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1570 sizeof (uint64_t)) == 0) 1571 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1572 sa_handle_destroy(hdl); 1573 } 1574 1575 /*ARGSUSED*/ 1576 static void 1577 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1578 { 1579 } 1580 1581 /*ARGSUSED*/ 1582 static void 1583 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1584 { 1585 } 1586 1587 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1588 dump_none, /* unallocated */ 1589 dump_zap, /* object directory */ 1590 dump_uint64, /* object array */ 1591 dump_none, /* packed nvlist */ 1592 dump_packed_nvlist, /* packed nvlist size */ 1593 dump_none, /* bplist */ 1594 dump_none, /* bplist header */ 1595 dump_none, /* SPA space map header */ 1596 dump_none, /* SPA space map */ 1597 dump_none, /* ZIL intent log */ 1598 dump_dnode, /* DMU dnode */ 1599 dump_dmu_objset, /* DMU objset */ 1600 dump_dsl_dir, /* DSL directory */ 1601 dump_zap, /* DSL directory child map */ 1602 dump_zap, /* DSL dataset snap map */ 1603 dump_zap, /* DSL props */ 1604 dump_dsl_dataset, /* DSL dataset */ 1605 dump_znode, /* ZFS znode */ 1606 dump_acl, /* ZFS V0 ACL */ 1607 dump_uint8, /* ZFS plain file */ 1608 dump_zpldir, /* ZFS directory */ 1609 dump_zap, /* ZFS master node */ 1610 dump_zap, /* ZFS delete queue */ 1611 dump_uint8, /* zvol object */ 1612 dump_zap, /* zvol prop */ 1613 dump_uint8, /* other uint8[] */ 1614 dump_uint64, /* other uint64[] */ 1615 dump_zap, /* other ZAP */ 1616 dump_zap, /* persistent error log */ 1617 dump_uint8, /* SPA history */ 1618 dump_history_offsets, /* SPA history offsets */ 1619 dump_zap, /* Pool properties */ 1620 dump_zap, /* DSL permissions */ 1621 dump_acl, /* ZFS ACL */ 1622 dump_uint8, /* ZFS SYSACL */ 1623 dump_none, /* FUID nvlist */ 1624 dump_packed_nvlist, /* FUID nvlist size */ 1625 dump_zap, /* DSL dataset next clones */ 1626 dump_zap, /* DSL scrub queue */ 1627 dump_zap, /* ZFS user/group used */ 1628 dump_zap, /* ZFS user/group quota */ 1629 dump_zap, /* snapshot refcount tags */ 1630 dump_ddt_zap, /* DDT ZAP object */ 1631 dump_zap, /* DDT statistics */ 1632 dump_znode, /* SA object */ 1633 dump_zap, /* SA Master Node */ 1634 dump_sa_attrs, /* SA attribute registration */ 1635 dump_sa_layouts, /* SA attribute layouts */ 1636 dump_zap, /* DSL scrub translations */ 1637 dump_none, /* fake dedup BP */ 1638 dump_zap, /* deadlist */ 1639 dump_none, /* deadlist hdr */ 1640 dump_zap, /* dsl clones */ 1641 dump_none, /* bpobj subobjs */ 1642 dump_unknown, /* Unknown type, must be last */ 1643 }; 1644 1645 static void 1646 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1647 { 1648 dmu_buf_t *db = NULL; 1649 dmu_object_info_t doi; 1650 dnode_t *dn; 1651 void *bonus = NULL; 1652 size_t bsize = 0; 1653 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1654 char bonus_size[32]; 1655 char aux[50]; 1656 int error; 1657 1658 if (*print_header) { 1659 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1660 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1661 "%full", "type"); 1662 *print_header = 0; 1663 } 1664 1665 if (object == 0) { 1666 dn = DMU_META_DNODE(os); 1667 } else { 1668 error = dmu_bonus_hold(os, object, FTAG, &db); 1669 if (error) 1670 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1671 object, error); 1672 bonus = db->db_data; 1673 bsize = db->db_size; 1674 dn = DB_DNODE((dmu_buf_impl_t *)db); 1675 } 1676 dmu_object_info_from_dnode(dn, &doi); 1677 1678 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1679 zdb_nicenum(doi.doi_data_block_size, dblk); 1680 zdb_nicenum(doi.doi_max_offset, lsize); 1681 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1682 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1683 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1684 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1685 doi.doi_max_offset); 1686 1687 aux[0] = '\0'; 1688 1689 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1690 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1691 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1692 } 1693 1694 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1695 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1696 ZDB_COMPRESS_NAME(doi.doi_compress)); 1697 } 1698 1699 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1700 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1701 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1702 1703 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1704 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1705 "", "", "", "", "", bonus_size, "bonus", 1706 ZDB_OT_NAME(doi.doi_bonus_type)); 1707 } 1708 1709 if (verbosity >= 4) { 1710 (void) printf("\tdnode flags: %s%s%s\n", 1711 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1712 "USED_BYTES " : "", 1713 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1714 "USERUSED_ACCOUNTED " : "", 1715 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1716 "SPILL_BLKPTR" : ""); 1717 (void) printf("\tdnode maxblkid: %llu\n", 1718 (longlong_t)dn->dn_phys->dn_maxblkid); 1719 1720 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1721 bonus, bsize); 1722 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1723 *print_header = 1; 1724 } 1725 1726 if (verbosity >= 5) 1727 dump_indirect(dn); 1728 1729 if (verbosity >= 5) { 1730 /* 1731 * Report the list of segments that comprise the object. 1732 */ 1733 uint64_t start = 0; 1734 uint64_t end; 1735 uint64_t blkfill = 1; 1736 int minlvl = 1; 1737 1738 if (dn->dn_type == DMU_OT_DNODE) { 1739 minlvl = 0; 1740 blkfill = DNODES_PER_BLOCK; 1741 } 1742 1743 for (;;) { 1744 char segsize[32]; 1745 error = dnode_next_offset(dn, 1746 0, &start, minlvl, blkfill, 0); 1747 if (error) 1748 break; 1749 end = start; 1750 error = dnode_next_offset(dn, 1751 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1752 zdb_nicenum(end - start, segsize); 1753 (void) printf("\t\tsegment [%016llx, %016llx)" 1754 " size %5s\n", (u_longlong_t)start, 1755 (u_longlong_t)end, segsize); 1756 if (error) 1757 break; 1758 start = end; 1759 } 1760 } 1761 1762 if (db != NULL) 1763 dmu_buf_rele(db, FTAG); 1764 } 1765 1766 static char *objset_types[DMU_OST_NUMTYPES] = { 1767 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1768 1769 static void 1770 dump_dir(objset_t *os) 1771 { 1772 dmu_objset_stats_t dds; 1773 uint64_t object, object_count; 1774 uint64_t refdbytes, usedobjs, scratch; 1775 char numbuf[32]; 1776 char blkbuf[BP_SPRINTF_LEN + 20]; 1777 char osname[MAXNAMELEN]; 1778 char *type = "UNKNOWN"; 1779 int verbosity = dump_opt['d']; 1780 int print_header = 1; 1781 int i, error; 1782 1783 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1784 dmu_objset_fast_stat(os, &dds); 1785 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1786 1787 if (dds.dds_type < DMU_OST_NUMTYPES) 1788 type = objset_types[dds.dds_type]; 1789 1790 if (dds.dds_type == DMU_OST_META) { 1791 dds.dds_creation_txg = TXG_INITIAL; 1792 usedobjs = os->os_rootbp->blk_fill; 1793 refdbytes = os->os_spa->spa_dsl_pool-> 1794 dp_mos_dir->dd_phys->dd_used_bytes; 1795 } else { 1796 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1797 } 1798 1799 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1800 1801 zdb_nicenum(refdbytes, numbuf); 1802 1803 if (verbosity >= 4) { 1804 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1805 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1806 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1807 } else { 1808 blkbuf[0] = '\0'; 1809 } 1810 1811 dmu_objset_name(os, osname); 1812 1813 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1814 "%s, %llu objects%s\n", 1815 osname, type, (u_longlong_t)dmu_objset_id(os), 1816 (u_longlong_t)dds.dds_creation_txg, 1817 numbuf, (u_longlong_t)usedobjs, blkbuf); 1818 1819 if (zopt_objects != 0) { 1820 for (i = 0; i < zopt_objects; i++) 1821 dump_object(os, zopt_object[i], verbosity, 1822 &print_header); 1823 (void) printf("\n"); 1824 return; 1825 } 1826 1827 if (dump_opt['i'] != 0 || verbosity >= 2) 1828 dump_intent_log(dmu_objset_zil(os)); 1829 1830 if (dmu_objset_ds(os) != NULL) 1831 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1832 1833 if (verbosity < 2) 1834 return; 1835 1836 if (BP_IS_HOLE(os->os_rootbp)) 1837 return; 1838 1839 dump_object(os, 0, verbosity, &print_header); 1840 object_count = 0; 1841 if (DMU_USERUSED_DNODE(os) != NULL && 1842 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1843 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1844 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1845 } 1846 1847 object = 0; 1848 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1849 dump_object(os, object, verbosity, &print_header); 1850 object_count++; 1851 } 1852 1853 ASSERT3U(object_count, ==, usedobjs); 1854 1855 (void) printf("\n"); 1856 1857 if (error != ESRCH) { 1858 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1859 abort(); 1860 } 1861 } 1862 1863 static void 1864 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1865 { 1866 time_t timestamp = ub->ub_timestamp; 1867 1868 (void) printf(header ? header : ""); 1869 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1870 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1871 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1872 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1873 (void) printf("\ttimestamp = %llu UTC = %s", 1874 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1875 if (dump_opt['u'] >= 3) { 1876 char blkbuf[BP_SPRINTF_LEN]; 1877 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1878 (void) printf("\trootbp = %s\n", blkbuf); 1879 } 1880 (void) printf(footer ? footer : ""); 1881 } 1882 1883 static void 1884 dump_config(spa_t *spa) 1885 { 1886 dmu_buf_t *db; 1887 size_t nvsize = 0; 1888 int error = 0; 1889 1890 1891 error = dmu_bonus_hold(spa->spa_meta_objset, 1892 spa->spa_config_object, FTAG, &db); 1893 1894 if (error == 0) { 1895 nvsize = *(uint64_t *)db->db_data; 1896 dmu_buf_rele(db, FTAG); 1897 1898 (void) printf("\nMOS Configuration:\n"); 1899 dump_packed_nvlist(spa->spa_meta_objset, 1900 spa->spa_config_object, (void *)&nvsize, 1); 1901 } else { 1902 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1903 (u_longlong_t)spa->spa_config_object, error); 1904 } 1905 } 1906 1907 static void 1908 dump_cachefile(const char *cachefile) 1909 { 1910 int fd; 1911 struct stat64 statbuf; 1912 char *buf; 1913 nvlist_t *config; 1914 1915 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1916 (void) printf("cannot open '%s': %s\n", cachefile, 1917 strerror(errno)); 1918 exit(1); 1919 } 1920 1921 if (fstat64(fd, &statbuf) != 0) { 1922 (void) printf("failed to stat '%s': %s\n", cachefile, 1923 strerror(errno)); 1924 exit(1); 1925 } 1926 1927 if ((buf = malloc(statbuf.st_size)) == NULL) { 1928 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1929 (u_longlong_t)statbuf.st_size); 1930 exit(1); 1931 } 1932 1933 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1934 (void) fprintf(stderr, "failed to read %llu bytes\n", 1935 (u_longlong_t)statbuf.st_size); 1936 exit(1); 1937 } 1938 1939 (void) close(fd); 1940 1941 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1942 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1943 exit(1); 1944 } 1945 1946 free(buf); 1947 1948 dump_nvlist(config, 0); 1949 1950 nvlist_free(config); 1951 } 1952 1953 #define ZDB_MAX_UB_HEADER_SIZE 32 1954 1955 static void 1956 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1957 { 1958 vdev_t vd; 1959 vdev_t *vdp = &vd; 1960 char header[ZDB_MAX_UB_HEADER_SIZE]; 1961 1962 vd.vdev_ashift = ashift; 1963 vdp->vdev_top = vdp; 1964 1965 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1966 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1967 uberblock_t *ub = (void *)((char *)lbl + uoff); 1968 1969 if (uberblock_verify(ub)) 1970 continue; 1971 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1972 "Uberblock[%d]\n", i); 1973 dump_uberblock(ub, header, ""); 1974 } 1975 } 1976 1977 static void 1978 dump_label(const char *dev) 1979 { 1980 int fd; 1981 vdev_label_t label; 1982 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 1983 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1984 struct stat64 statbuf; 1985 uint64_t psize, ashift; 1986 int len = strlen(dev) + 1; 1987 1988 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 1989 len++; 1990 path = malloc(len); 1991 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 1992 } else { 1993 path = strdup(dev); 1994 } 1995 1996 if ((fd = open64(path, O_RDONLY)) < 0) { 1997 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 1998 free(path); 1999 exit(1); 2000 } 2001 2002 if (fstat64(fd, &statbuf) != 0) { 2003 (void) printf("failed to stat '%s': %s\n", path, 2004 strerror(errno)); 2005 free(path); 2006 (void) close(fd); 2007 exit(1); 2008 } 2009 2010 if (S_ISBLK(statbuf.st_mode)) { 2011 (void) printf("cannot use '%s': character device required\n", 2012 path); 2013 free(path); 2014 (void) close(fd); 2015 exit(1); 2016 } 2017 2018 psize = statbuf.st_size; 2019 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2020 2021 for (int l = 0; l < VDEV_LABELS; l++) { 2022 nvlist_t *config = NULL; 2023 2024 (void) printf("--------------------------------------------\n"); 2025 (void) printf("LABEL %d\n", l); 2026 (void) printf("--------------------------------------------\n"); 2027 2028 if (pread64(fd, &label, sizeof (label), 2029 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2030 (void) printf("failed to read label %d\n", l); 2031 continue; 2032 } 2033 2034 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2035 (void) printf("failed to unpack label %d\n", l); 2036 ashift = SPA_MINBLOCKSHIFT; 2037 } else { 2038 nvlist_t *vdev_tree = NULL; 2039 2040 dump_nvlist(config, 4); 2041 if ((nvlist_lookup_nvlist(config, 2042 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2043 (nvlist_lookup_uint64(vdev_tree, 2044 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2045 ashift = SPA_MINBLOCKSHIFT; 2046 nvlist_free(config); 2047 } 2048 if (dump_opt['u']) 2049 dump_label_uberblocks(&label, ashift); 2050 } 2051 2052 free(path); 2053 (void) close(fd); 2054 } 2055 2056 /*ARGSUSED*/ 2057 static int 2058 dump_one_dir(const char *dsname, void *arg) 2059 { 2060 int error; 2061 objset_t *os; 2062 2063 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2064 if (error) { 2065 (void) printf("Could not open %s, error %d\n", dsname, error); 2066 return (0); 2067 } 2068 dump_dir(os); 2069 dmu_objset_disown(os, FTAG); 2070 fuid_table_destroy(); 2071 sa_loaded = B_FALSE; 2072 return (0); 2073 } 2074 2075 /* 2076 * Block statistics. 2077 */ 2078 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2079 typedef struct zdb_blkstats { 2080 uint64_t zb_asize; 2081 uint64_t zb_lsize; 2082 uint64_t zb_psize; 2083 uint64_t zb_count; 2084 uint64_t zb_gangs; 2085 uint64_t zb_ditto_samevdev; 2086 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2087 } zdb_blkstats_t; 2088 2089 /* 2090 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2091 */ 2092 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2093 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2094 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2095 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2096 2097 static char *zdb_ot_extname[] = { 2098 "deferred free", 2099 "dedup ditto", 2100 "other", 2101 "Total", 2102 }; 2103 2104 #define ZB_TOTAL DN_MAX_LEVELS 2105 2106 typedef struct zdb_cb { 2107 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2108 uint64_t zcb_dedup_asize; 2109 uint64_t zcb_dedup_blocks; 2110 uint64_t zcb_start; 2111 uint64_t zcb_lastprint; 2112 uint64_t zcb_totalasize; 2113 uint64_t zcb_errors[256]; 2114 int zcb_readfails; 2115 int zcb_haderrors; 2116 spa_t *zcb_spa; 2117 } zdb_cb_t; 2118 2119 static void 2120 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2121 dmu_object_type_t type) 2122 { 2123 uint64_t refcnt = 0; 2124 2125 ASSERT(type < ZDB_OT_TOTAL); 2126 2127 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2128 return; 2129 2130 for (int i = 0; i < 4; i++) { 2131 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2132 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2133 int equal; 2134 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2135 2136 zb->zb_asize += BP_GET_ASIZE(bp); 2137 zb->zb_lsize += BP_GET_LSIZE(bp); 2138 zb->zb_psize += BP_GET_PSIZE(bp); 2139 zb->zb_count++; 2140 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2141 2142 zb->zb_gangs += BP_COUNT_GANG(bp); 2143 2144 switch (BP_GET_NDVAS(bp)) { 2145 case 2: 2146 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2147 DVA_GET_VDEV(&bp->blk_dva[1])) 2148 zb->zb_ditto_samevdev++; 2149 break; 2150 case 3: 2151 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2152 DVA_GET_VDEV(&bp->blk_dva[1])) + 2153 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2154 DVA_GET_VDEV(&bp->blk_dva[2])) + 2155 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2156 DVA_GET_VDEV(&bp->blk_dva[2])); 2157 if (equal != 0) 2158 zb->zb_ditto_samevdev++; 2159 break; 2160 } 2161 2162 } 2163 2164 if (dump_opt['L']) 2165 return; 2166 2167 if (BP_GET_DEDUP(bp)) { 2168 ddt_t *ddt; 2169 ddt_entry_t *dde; 2170 2171 ddt = ddt_select(zcb->zcb_spa, bp); 2172 ddt_enter(ddt); 2173 dde = ddt_lookup(ddt, bp, B_FALSE); 2174 2175 if (dde == NULL) { 2176 refcnt = 0; 2177 } else { 2178 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2179 ddt_phys_decref(ddp); 2180 refcnt = ddp->ddp_refcnt; 2181 if (ddt_phys_total_refcnt(dde) == 0) 2182 ddt_remove(ddt, dde); 2183 } 2184 ddt_exit(ddt); 2185 } 2186 2187 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2188 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2189 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2190 } 2191 2192 static void 2193 zdb_blkptr_done(zio_t *zio) 2194 { 2195 spa_t *spa = zio->io_spa; 2196 blkptr_t *bp = zio->io_bp; 2197 int ioerr = zio->io_error; 2198 zdb_cb_t *zcb = zio->io_private; 2199 zbookmark_t *zb = &zio->io_bookmark; 2200 2201 zio_data_buf_free(zio->io_data, zio->io_size); 2202 2203 mutex_enter(&spa->spa_scrub_lock); 2204 spa->spa_scrub_inflight--; 2205 cv_broadcast(&spa->spa_scrub_io_cv); 2206 2207 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2208 char blkbuf[BP_SPRINTF_LEN]; 2209 2210 zcb->zcb_haderrors = 1; 2211 zcb->zcb_errors[ioerr]++; 2212 2213 if (dump_opt['b'] >= 2) 2214 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2215 else 2216 blkbuf[0] = '\0'; 2217 2218 (void) printf("zdb_blkptr_cb: " 2219 "Got error %d reading " 2220 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2221 ioerr, 2222 (u_longlong_t)zb->zb_objset, 2223 (u_longlong_t)zb->zb_object, 2224 (u_longlong_t)zb->zb_level, 2225 (u_longlong_t)zb->zb_blkid, 2226 blkbuf); 2227 } 2228 mutex_exit(&spa->spa_scrub_lock); 2229 } 2230 2231 static int 2232 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2233 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2234 { 2235 zdb_cb_t *zcb = arg; 2236 dmu_object_type_t type; 2237 boolean_t is_metadata; 2238 2239 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2240 char blkbuf[BP_SPRINTF_LEN]; 2241 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2242 (void) printf("objset %llu object %llu " 2243 "level %lld offset 0x%llx %s\n", 2244 (u_longlong_t)zb->zb_objset, 2245 (u_longlong_t)zb->zb_object, 2246 (longlong_t)zb->zb_level, 2247 (u_longlong_t)blkid2offset(dnp, bp, zb), 2248 blkbuf); 2249 } 2250 2251 if (BP_IS_HOLE(bp)) 2252 return (0); 2253 2254 type = BP_GET_TYPE(bp); 2255 2256 zdb_count_block(zcb, zilog, bp, 2257 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2258 2259 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2260 2261 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { 2262 size_t size = BP_GET_PSIZE(bp); 2263 void *data = zio_data_buf_alloc(size); 2264 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2265 2266 /* If it's an intent log block, failure is expected. */ 2267 if (zb->zb_level == ZB_ZIL_LEVEL) 2268 flags |= ZIO_FLAG_SPECULATIVE; 2269 2270 mutex_enter(&spa->spa_scrub_lock); 2271 while (spa->spa_scrub_inflight > max_inflight) 2272 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2273 spa->spa_scrub_inflight++; 2274 mutex_exit(&spa->spa_scrub_lock); 2275 2276 zio_nowait(zio_read(NULL, spa, bp, data, size, 2277 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2278 } 2279 2280 zcb->zcb_readfails = 0; 2281 2282 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2283 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2284 uint64_t now = gethrtime(); 2285 char buf[10]; 2286 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2287 int kb_per_sec = 2288 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2289 int sec_remaining = 2290 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2291 2292 zfs_nicenum(bytes, buf, sizeof (buf)); 2293 (void) fprintf(stderr, 2294 "\r%5s completed (%4dMB/s) " 2295 "estimated time remaining: %uhr %02umin %02usec ", 2296 buf, kb_per_sec / 1024, 2297 sec_remaining / 60 / 60, 2298 sec_remaining / 60 % 60, 2299 sec_remaining % 60); 2300 2301 zcb->zcb_lastprint = now; 2302 } 2303 2304 return (0); 2305 } 2306 2307 static void 2308 zdb_leak(void *arg, uint64_t start, uint64_t size) 2309 { 2310 vdev_t *vd = arg; 2311 2312 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2313 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2314 } 2315 2316 static metaslab_ops_t zdb_metaslab_ops = { 2317 NULL, /* alloc */ 2318 NULL /* fragmented */ 2319 }; 2320 2321 static void 2322 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2323 { 2324 ddt_bookmark_t ddb = { 0 }; 2325 ddt_entry_t dde; 2326 int error; 2327 2328 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2329 blkptr_t blk; 2330 ddt_phys_t *ddp = dde.dde_phys; 2331 2332 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2333 return; 2334 2335 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2336 2337 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2338 if (ddp->ddp_phys_birth == 0) 2339 continue; 2340 ddt_bp_create(ddb.ddb_checksum, 2341 &dde.dde_key, ddp, &blk); 2342 if (p == DDT_PHYS_DITTO) { 2343 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2344 } else { 2345 zcb->zcb_dedup_asize += 2346 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2347 zcb->zcb_dedup_blocks++; 2348 } 2349 } 2350 if (!dump_opt['L']) { 2351 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2352 ddt_enter(ddt); 2353 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2354 ddt_exit(ddt); 2355 } 2356 } 2357 2358 ASSERT(error == ENOENT); 2359 } 2360 2361 static void 2362 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2363 { 2364 zcb->zcb_spa = spa; 2365 2366 if (!dump_opt['L']) { 2367 vdev_t *rvd = spa->spa_root_vdev; 2368 for (int c = 0; c < rvd->vdev_children; c++) { 2369 vdev_t *vd = rvd->vdev_child[c]; 2370 for (int m = 0; m < vd->vdev_ms_count; m++) { 2371 metaslab_t *msp = vd->vdev_ms[m]; 2372 mutex_enter(&msp->ms_lock); 2373 metaslab_unload(msp); 2374 2375 /* 2376 * For leak detection, we overload the metaslab 2377 * ms_tree to contain allocated segments 2378 * instead of free segments. As a result, 2379 * we can't use the normal metaslab_load/unload 2380 * interfaces. 2381 */ 2382 if (msp->ms_sm != NULL) { 2383 msp->ms_ops = &zdb_metaslab_ops; 2384 VERIFY0(space_map_load(msp->ms_sm, 2385 msp->ms_tree, SM_ALLOC)); 2386 msp->ms_loaded = B_TRUE; 2387 } 2388 mutex_exit(&msp->ms_lock); 2389 } 2390 } 2391 } 2392 2393 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2394 2395 zdb_ddt_leak_init(spa, zcb); 2396 2397 spa_config_exit(spa, SCL_CONFIG, FTAG); 2398 } 2399 2400 static void 2401 zdb_leak_fini(spa_t *spa) 2402 { 2403 if (!dump_opt['L']) { 2404 vdev_t *rvd = spa->spa_root_vdev; 2405 for (int c = 0; c < rvd->vdev_children; c++) { 2406 vdev_t *vd = rvd->vdev_child[c]; 2407 for (int m = 0; m < vd->vdev_ms_count; m++) { 2408 metaslab_t *msp = vd->vdev_ms[m]; 2409 mutex_enter(&msp->ms_lock); 2410 2411 /* 2412 * The ms_tree has been overloaded to 2413 * contain allocated segments. Now that we 2414 * finished traversing all blocks, any 2415 * block that remains in the ms_tree 2416 * represents an allocated block that we 2417 * did not claim during the traversal. 2418 * Claimed blocks would have been removed 2419 * from the ms_tree. 2420 */ 2421 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2422 msp->ms_loaded = B_FALSE; 2423 2424 mutex_exit(&msp->ms_lock); 2425 } 2426 } 2427 } 2428 } 2429 2430 /* ARGSUSED */ 2431 static int 2432 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2433 { 2434 zdb_cb_t *zcb = arg; 2435 2436 if (dump_opt['b'] >= 5) { 2437 char blkbuf[BP_SPRINTF_LEN]; 2438 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2439 (void) printf("[%s] %s\n", 2440 "deferred free", blkbuf); 2441 } 2442 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2443 return (0); 2444 } 2445 2446 static int 2447 dump_block_stats(spa_t *spa) 2448 { 2449 zdb_cb_t zcb = { 0 }; 2450 zdb_blkstats_t *zb, *tzb; 2451 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2452 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2453 int leaks = 0; 2454 2455 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2456 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2457 (dump_opt['c'] == 1) ? "metadata " : "", 2458 dump_opt['c'] ? "checksums " : "", 2459 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2460 !dump_opt['L'] ? "nothing leaked " : ""); 2461 2462 /* 2463 * Load all space maps as SM_ALLOC maps, then traverse the pool 2464 * claiming each block we discover. If the pool is perfectly 2465 * consistent, the space maps will be empty when we're done. 2466 * Anything left over is a leak; any block we can't claim (because 2467 * it's not part of any space map) is a double allocation, 2468 * reference to a freed block, or an unclaimed log block. 2469 */ 2470 zdb_leak_init(spa, &zcb); 2471 2472 /* 2473 * If there's a deferred-free bplist, process that first. 2474 */ 2475 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2476 count_block_cb, &zcb, NULL); 2477 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2478 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2479 count_block_cb, &zcb, NULL); 2480 } 2481 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2482 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2483 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2484 &zcb, NULL)); 2485 } 2486 2487 if (dump_opt['c'] > 1) 2488 flags |= TRAVERSE_PREFETCH_DATA; 2489 2490 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2491 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2492 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2493 2494 /* 2495 * If we've traversed the data blocks then we need to wait for those 2496 * I/Os to complete. We leverage "The Godfather" zio to wait on 2497 * all async I/Os to complete. 2498 */ 2499 if (dump_opt['c']) { 2500 (void) zio_wait(spa->spa_async_zio_root); 2501 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2502 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2503 ZIO_FLAG_GODFATHER); 2504 } 2505 2506 if (zcb.zcb_haderrors) { 2507 (void) printf("\nError counts:\n\n"); 2508 (void) printf("\t%5s %s\n", "errno", "count"); 2509 for (int e = 0; e < 256; e++) { 2510 if (zcb.zcb_errors[e] != 0) { 2511 (void) printf("\t%5d %llu\n", 2512 e, (u_longlong_t)zcb.zcb_errors[e]); 2513 } 2514 } 2515 } 2516 2517 /* 2518 * Report any leaked segments. 2519 */ 2520 zdb_leak_fini(spa); 2521 2522 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2523 2524 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2525 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2526 2527 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2528 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2529 2530 if (total_found == total_alloc) { 2531 if (!dump_opt['L']) 2532 (void) printf("\n\tNo leaks (block sum matches space" 2533 " maps exactly)\n"); 2534 } else { 2535 (void) printf("block traversal size %llu != alloc %llu " 2536 "(%s %lld)\n", 2537 (u_longlong_t)total_found, 2538 (u_longlong_t)total_alloc, 2539 (dump_opt['L']) ? "unreachable" : "leaked", 2540 (longlong_t)(total_alloc - total_found)); 2541 leaks = 1; 2542 } 2543 2544 if (tzb->zb_count == 0) 2545 return (2); 2546 2547 (void) printf("\n"); 2548 (void) printf("\tbp count: %10llu\n", 2549 (u_longlong_t)tzb->zb_count); 2550 (void) printf("\tganged count: %10llu\n", 2551 (longlong_t)tzb->zb_gangs); 2552 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2553 (u_longlong_t)tzb->zb_lsize, 2554 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2555 (void) printf("\tbp physical: %10llu avg:" 2556 " %6llu compression: %6.2f\n", 2557 (u_longlong_t)tzb->zb_psize, 2558 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2559 (double)tzb->zb_lsize / tzb->zb_psize); 2560 (void) printf("\tbp allocated: %10llu avg:" 2561 " %6llu compression: %6.2f\n", 2562 (u_longlong_t)tzb->zb_asize, 2563 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2564 (double)tzb->zb_lsize / tzb->zb_asize); 2565 (void) printf("\tbp deduped: %10llu ref>1:" 2566 " %6llu deduplication: %6.2f\n", 2567 (u_longlong_t)zcb.zcb_dedup_asize, 2568 (u_longlong_t)zcb.zcb_dedup_blocks, 2569 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2570 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2571 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2572 2573 if (tzb->zb_ditto_samevdev != 0) { 2574 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2575 (longlong_t)tzb->zb_ditto_samevdev); 2576 } 2577 2578 if (dump_opt['b'] >= 2) { 2579 int l, t, level; 2580 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2581 "\t avg\t comp\t%%Total\tType\n"); 2582 2583 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2584 char csize[32], lsize[32], psize[32], asize[32]; 2585 char avg[32], gang[32]; 2586 char *typename; 2587 2588 if (t < DMU_OT_NUMTYPES) 2589 typename = dmu_ot[t].ot_name; 2590 else 2591 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2592 2593 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2594 (void) printf("%6s\t%5s\t%5s\t%5s" 2595 "\t%5s\t%5s\t%6s\t%s\n", 2596 "-", 2597 "-", 2598 "-", 2599 "-", 2600 "-", 2601 "-", 2602 "-", 2603 typename); 2604 continue; 2605 } 2606 2607 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2608 level = (l == -1 ? ZB_TOTAL : l); 2609 zb = &zcb.zcb_type[level][t]; 2610 2611 if (zb->zb_asize == 0) 2612 continue; 2613 2614 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2615 continue; 2616 2617 if (level == 0 && zb->zb_asize == 2618 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2619 continue; 2620 2621 zdb_nicenum(zb->zb_count, csize); 2622 zdb_nicenum(zb->zb_lsize, lsize); 2623 zdb_nicenum(zb->zb_psize, psize); 2624 zdb_nicenum(zb->zb_asize, asize); 2625 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2626 zdb_nicenum(zb->zb_gangs, gang); 2627 2628 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2629 "\t%5.2f\t%6.2f\t", 2630 csize, lsize, psize, asize, avg, 2631 (double)zb->zb_lsize / zb->zb_psize, 2632 100.0 * zb->zb_asize / tzb->zb_asize); 2633 2634 if (level == ZB_TOTAL) 2635 (void) printf("%s\n", typename); 2636 else 2637 (void) printf(" L%d %s\n", 2638 level, typename); 2639 2640 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2641 (void) printf("\t number of ganged " 2642 "blocks: %s\n", gang); 2643 } 2644 2645 if (dump_opt['b'] >= 4) { 2646 (void) printf("psize " 2647 "(in 512-byte sectors): " 2648 "number of blocks\n"); 2649 dump_histogram(zb->zb_psize_histogram, 2650 PSIZE_HISTO_SIZE, 0); 2651 } 2652 } 2653 } 2654 } 2655 2656 (void) printf("\n"); 2657 2658 if (leaks) 2659 return (2); 2660 2661 if (zcb.zcb_haderrors) 2662 return (3); 2663 2664 return (0); 2665 } 2666 2667 typedef struct zdb_ddt_entry { 2668 ddt_key_t zdde_key; 2669 uint64_t zdde_ref_blocks; 2670 uint64_t zdde_ref_lsize; 2671 uint64_t zdde_ref_psize; 2672 uint64_t zdde_ref_dsize; 2673 avl_node_t zdde_node; 2674 } zdb_ddt_entry_t; 2675 2676 /* ARGSUSED */ 2677 static int 2678 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2679 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2680 { 2681 avl_tree_t *t = arg; 2682 avl_index_t where; 2683 zdb_ddt_entry_t *zdde, zdde_search; 2684 2685 if (BP_IS_HOLE(bp)) 2686 return (0); 2687 2688 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2689 (void) printf("traversing objset %llu, %llu objects, " 2690 "%lu blocks so far\n", 2691 (u_longlong_t)zb->zb_objset, 2692 (u_longlong_t)bp->blk_fill, 2693 avl_numnodes(t)); 2694 } 2695 2696 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2697 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2698 return (0); 2699 2700 ddt_key_fill(&zdde_search.zdde_key, bp); 2701 2702 zdde = avl_find(t, &zdde_search, &where); 2703 2704 if (zdde == NULL) { 2705 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2706 zdde->zdde_key = zdde_search.zdde_key; 2707 avl_insert(t, zdde, where); 2708 } 2709 2710 zdde->zdde_ref_blocks += 1; 2711 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2712 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2713 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2714 2715 return (0); 2716 } 2717 2718 static void 2719 dump_simulated_ddt(spa_t *spa) 2720 { 2721 avl_tree_t t; 2722 void *cookie = NULL; 2723 zdb_ddt_entry_t *zdde; 2724 ddt_histogram_t ddh_total = { 0 }; 2725 ddt_stat_t dds_total = { 0 }; 2726 2727 avl_create(&t, ddt_entry_compare, 2728 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2729 2730 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2731 2732 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2733 zdb_ddt_add_cb, &t); 2734 2735 spa_config_exit(spa, SCL_CONFIG, FTAG); 2736 2737 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2738 ddt_stat_t dds; 2739 uint64_t refcnt = zdde->zdde_ref_blocks; 2740 ASSERT(refcnt != 0); 2741 2742 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2743 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2744 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2745 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2746 2747 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2748 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2749 dds.dds_ref_psize = zdde->zdde_ref_psize; 2750 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2751 2752 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2753 &dds, 0); 2754 2755 umem_free(zdde, sizeof (*zdde)); 2756 } 2757 2758 avl_destroy(&t); 2759 2760 ddt_histogram_stat(&dds_total, &ddh_total); 2761 2762 (void) printf("Simulated DDT histogram:\n"); 2763 2764 zpool_dump_ddt(&dds_total, &ddh_total); 2765 2766 dump_dedup_ratio(&dds_total); 2767 } 2768 2769 static void 2770 dump_zpool(spa_t *spa) 2771 { 2772 dsl_pool_t *dp = spa_get_dsl(spa); 2773 int rc = 0; 2774 2775 if (dump_opt['S']) { 2776 dump_simulated_ddt(spa); 2777 return; 2778 } 2779 2780 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2781 (void) printf("\nCached configuration:\n"); 2782 dump_nvlist(spa->spa_config, 8); 2783 } 2784 2785 if (dump_opt['C']) 2786 dump_config(spa); 2787 2788 if (dump_opt['u']) 2789 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2790 2791 if (dump_opt['D']) 2792 dump_all_ddts(spa); 2793 2794 if (dump_opt['d'] > 2 || dump_opt['m']) 2795 dump_metaslabs(spa); 2796 2797 if (dump_opt['d'] || dump_opt['i']) { 2798 dump_dir(dp->dp_meta_objset); 2799 if (dump_opt['d'] >= 3) { 2800 dump_bpobj(&spa->spa_deferred_bpobj, 2801 "Deferred frees", 0); 2802 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2803 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2804 "Pool snapshot frees", 0); 2805 } 2806 2807 if (spa_feature_is_active(spa, 2808 SPA_FEATURE_ASYNC_DESTROY)) { 2809 dump_bptree(spa->spa_meta_objset, 2810 spa->spa_dsl_pool->dp_bptree_obj, 2811 "Pool dataset frees"); 2812 } 2813 dump_dtl(spa->spa_root_vdev, 0); 2814 } 2815 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2816 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2817 } 2818 if (dump_opt['b'] || dump_opt['c']) 2819 rc = dump_block_stats(spa); 2820 2821 if (rc == 0) 2822 rc = verify_spacemap_refcounts(spa); 2823 2824 if (dump_opt['s']) 2825 show_pool_stats(spa); 2826 2827 if (dump_opt['h']) 2828 dump_history(spa); 2829 2830 if (rc != 0) 2831 exit(rc); 2832 } 2833 2834 #define ZDB_FLAG_CHECKSUM 0x0001 2835 #define ZDB_FLAG_DECOMPRESS 0x0002 2836 #define ZDB_FLAG_BSWAP 0x0004 2837 #define ZDB_FLAG_GBH 0x0008 2838 #define ZDB_FLAG_INDIRECT 0x0010 2839 #define ZDB_FLAG_PHYS 0x0020 2840 #define ZDB_FLAG_RAW 0x0040 2841 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 2842 2843 int flagbits[256]; 2844 2845 static void 2846 zdb_print_blkptr(blkptr_t *bp, int flags) 2847 { 2848 char blkbuf[BP_SPRINTF_LEN]; 2849 2850 if (flags & ZDB_FLAG_BSWAP) 2851 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2852 2853 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2854 (void) printf("%s\n", blkbuf); 2855 } 2856 2857 static void 2858 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2859 { 2860 int i; 2861 2862 for (i = 0; i < nbps; i++) 2863 zdb_print_blkptr(&bp[i], flags); 2864 } 2865 2866 static void 2867 zdb_dump_gbh(void *buf, int flags) 2868 { 2869 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2870 } 2871 2872 static void 2873 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2874 { 2875 if (flags & ZDB_FLAG_BSWAP) 2876 byteswap_uint64_array(buf, size); 2877 (void) write(1, buf, size); 2878 } 2879 2880 static void 2881 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2882 { 2883 uint64_t *d = (uint64_t *)buf; 2884 int nwords = size / sizeof (uint64_t); 2885 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2886 int i, j; 2887 char *hdr, *c; 2888 2889 2890 if (do_bswap) 2891 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2892 else 2893 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2894 2895 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2896 2897 for (i = 0; i < nwords; i += 2) { 2898 (void) printf("%06llx: %016llx %016llx ", 2899 (u_longlong_t)(i * sizeof (uint64_t)), 2900 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2901 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2902 2903 c = (char *)&d[i]; 2904 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2905 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2906 (void) printf("\n"); 2907 } 2908 } 2909 2910 /* 2911 * There are two acceptable formats: 2912 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2913 * child[.child]* - For example: 0.1.1 2914 * 2915 * The second form can be used to specify arbitrary vdevs anywhere 2916 * in the heirarchy. For example, in a pool with a mirror of 2917 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2918 */ 2919 static vdev_t * 2920 zdb_vdev_lookup(vdev_t *vdev, char *path) 2921 { 2922 char *s, *p, *q; 2923 int i; 2924 2925 if (vdev == NULL) 2926 return (NULL); 2927 2928 /* First, assume the x.x.x.x format */ 2929 i = (int)strtoul(path, &s, 10); 2930 if (s == path || (s && *s != '.' && *s != '\0')) 2931 goto name; 2932 if (i < 0 || i >= vdev->vdev_children) 2933 return (NULL); 2934 2935 vdev = vdev->vdev_child[i]; 2936 if (*s == '\0') 2937 return (vdev); 2938 return (zdb_vdev_lookup(vdev, s+1)); 2939 2940 name: 2941 for (i = 0; i < vdev->vdev_children; i++) { 2942 vdev_t *vc = vdev->vdev_child[i]; 2943 2944 if (vc->vdev_path == NULL) { 2945 vc = zdb_vdev_lookup(vc, path); 2946 if (vc == NULL) 2947 continue; 2948 else 2949 return (vc); 2950 } 2951 2952 p = strrchr(vc->vdev_path, '/'); 2953 p = p ? p + 1 : vc->vdev_path; 2954 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2955 2956 if (strcmp(vc->vdev_path, path) == 0) 2957 return (vc); 2958 if (strcmp(p, path) == 0) 2959 return (vc); 2960 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2961 return (vc); 2962 } 2963 2964 return (NULL); 2965 } 2966 2967 /* 2968 * Read a block from a pool and print it out. The syntax of the 2969 * block descriptor is: 2970 * 2971 * pool:vdev_specifier:offset:size[:flags] 2972 * 2973 * pool - The name of the pool you wish to read from 2974 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2975 * offset - offset, in hex, in bytes 2976 * size - Amount of data to read, in hex, in bytes 2977 * flags - A string of characters specifying options 2978 * b: Decode a blkptr at given offset within block 2979 * *c: Calculate and display checksums 2980 * d: Decompress data before dumping 2981 * e: Byteswap data before dumping 2982 * g: Display data as a gang block header 2983 * i: Display as an indirect block 2984 * p: Do I/O to physical offset 2985 * r: Dump raw data to stdout 2986 * 2987 * * = not yet implemented 2988 */ 2989 static void 2990 zdb_read_block(char *thing, spa_t *spa) 2991 { 2992 blkptr_t blk, *bp = &blk; 2993 dva_t *dva = bp->blk_dva; 2994 int flags = 0; 2995 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 2996 zio_t *zio; 2997 vdev_t *vd; 2998 void *pbuf, *lbuf, *buf; 2999 char *s, *p, *dup, *vdev, *flagstr; 3000 int i, error; 3001 3002 dup = strdup(thing); 3003 s = strtok(dup, ":"); 3004 vdev = s ? s : ""; 3005 s = strtok(NULL, ":"); 3006 offset = strtoull(s ? s : "", NULL, 16); 3007 s = strtok(NULL, ":"); 3008 size = strtoull(s ? s : "", NULL, 16); 3009 s = strtok(NULL, ":"); 3010 flagstr = s ? s : ""; 3011 3012 s = NULL; 3013 if (size == 0) 3014 s = "size must not be zero"; 3015 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3016 s = "size must be a multiple of sector size"; 3017 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3018 s = "offset must be a multiple of sector size"; 3019 if (s) { 3020 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3021 free(dup); 3022 return; 3023 } 3024 3025 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3026 for (i = 0; flagstr[i]; i++) { 3027 int bit = flagbits[(uchar_t)flagstr[i]]; 3028 3029 if (bit == 0) { 3030 (void) printf("***Invalid flag: %c\n", 3031 flagstr[i]); 3032 continue; 3033 } 3034 flags |= bit; 3035 3036 /* If it's not something with an argument, keep going */ 3037 if ((bit & (ZDB_FLAG_CHECKSUM | 3038 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3039 continue; 3040 3041 p = &flagstr[i + 1]; 3042 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3043 blkptr_offset = strtoull(p, &p, 16); 3044 if (*p != ':' && *p != '\0') { 3045 (void) printf("***Invalid flag arg: '%s'\n", s); 3046 free(dup); 3047 return; 3048 } 3049 } 3050 } 3051 3052 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3053 if (vd == NULL) { 3054 (void) printf("***Invalid vdev: %s\n", vdev); 3055 free(dup); 3056 return; 3057 } else { 3058 if (vd->vdev_path) 3059 (void) fprintf(stderr, "Found vdev: %s\n", 3060 vd->vdev_path); 3061 else 3062 (void) fprintf(stderr, "Found vdev type: %s\n", 3063 vd->vdev_ops->vdev_op_type); 3064 } 3065 3066 psize = size; 3067 lsize = size; 3068 3069 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3070 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3071 3072 BP_ZERO(bp); 3073 3074 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3075 DVA_SET_OFFSET(&dva[0], offset); 3076 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3077 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3078 3079 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3080 3081 BP_SET_LSIZE(bp, lsize); 3082 BP_SET_PSIZE(bp, psize); 3083 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3084 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3085 BP_SET_TYPE(bp, DMU_OT_NONE); 3086 BP_SET_LEVEL(bp, 0); 3087 BP_SET_DEDUP(bp, 0); 3088 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3089 3090 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3091 zio = zio_root(spa, NULL, NULL, 0); 3092 3093 if (vd == vd->vdev_top) { 3094 /* 3095 * Treat this as a normal block read. 3096 */ 3097 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3098 ZIO_PRIORITY_SYNC_READ, 3099 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3100 } else { 3101 /* 3102 * Treat this as a vdev child I/O. 3103 */ 3104 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3105 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3106 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3107 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3108 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3109 } 3110 3111 error = zio_wait(zio); 3112 spa_config_exit(spa, SCL_STATE, FTAG); 3113 3114 if (error) { 3115 (void) printf("Read of %s failed, error: %d\n", thing, error); 3116 goto out; 3117 } 3118 3119 if (flags & ZDB_FLAG_DECOMPRESS) { 3120 /* 3121 * We don't know how the data was compressed, so just try 3122 * every decompress function at every inflated blocksize. 3123 */ 3124 enum zio_compress c; 3125 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3126 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3127 3128 bcopy(pbuf, pbuf2, psize); 3129 3130 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3131 SPA_MAXBLOCKSIZE - psize) == 0); 3132 3133 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3134 SPA_MAXBLOCKSIZE - psize) == 0); 3135 3136 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3137 lsize -= SPA_MINBLOCKSIZE) { 3138 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3139 if (zio_decompress_data(c, pbuf, lbuf, 3140 psize, lsize) == 0 && 3141 zio_decompress_data(c, pbuf2, lbuf2, 3142 psize, lsize) == 0 && 3143 bcmp(lbuf, lbuf2, lsize) == 0) 3144 break; 3145 } 3146 if (c != ZIO_COMPRESS_FUNCTIONS) 3147 break; 3148 lsize -= SPA_MINBLOCKSIZE; 3149 } 3150 3151 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3152 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3153 3154 if (lsize <= psize) { 3155 (void) printf("Decompress of %s failed\n", thing); 3156 goto out; 3157 } 3158 buf = lbuf; 3159 size = lsize; 3160 } else { 3161 buf = pbuf; 3162 size = psize; 3163 } 3164 3165 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3166 zdb_print_blkptr((blkptr_t *)(void *) 3167 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3168 else if (flags & ZDB_FLAG_RAW) 3169 zdb_dump_block_raw(buf, size, flags); 3170 else if (flags & ZDB_FLAG_INDIRECT) 3171 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3172 flags); 3173 else if (flags & ZDB_FLAG_GBH) 3174 zdb_dump_gbh(buf, flags); 3175 else 3176 zdb_dump_block(thing, buf, size, flags); 3177 3178 out: 3179 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3180 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3181 free(dup); 3182 } 3183 3184 static boolean_t 3185 pool_match(nvlist_t *cfg, char *tgt) 3186 { 3187 uint64_t v, guid = strtoull(tgt, NULL, 0); 3188 char *s; 3189 3190 if (guid != 0) { 3191 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3192 return (v == guid); 3193 } else { 3194 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3195 return (strcmp(s, tgt) == 0); 3196 } 3197 return (B_FALSE); 3198 } 3199 3200 static char * 3201 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3202 { 3203 nvlist_t *pools; 3204 nvlist_t *match = NULL; 3205 char *name = NULL; 3206 char *sepp = NULL; 3207 char sep; 3208 int count = 0; 3209 importargs_t args = { 0 }; 3210 3211 args.paths = dirc; 3212 args.path = dirv; 3213 args.can_be_active = B_TRUE; 3214 3215 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3216 sep = *sepp; 3217 *sepp = '\0'; 3218 } 3219 3220 pools = zpool_search_import(g_zfs, &args); 3221 3222 if (pools != NULL) { 3223 nvpair_t *elem = NULL; 3224 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3225 verify(nvpair_value_nvlist(elem, configp) == 0); 3226 if (pool_match(*configp, *target)) { 3227 count++; 3228 if (match != NULL) { 3229 /* print previously found config */ 3230 if (name != NULL) { 3231 (void) printf("%s\n", name); 3232 dump_nvlist(match, 8); 3233 name = NULL; 3234 } 3235 (void) printf("%s\n", 3236 nvpair_name(elem)); 3237 dump_nvlist(*configp, 8); 3238 } else { 3239 match = *configp; 3240 name = nvpair_name(elem); 3241 } 3242 } 3243 } 3244 } 3245 if (count > 1) 3246 (void) fatal("\tMatched %d pools - use pool GUID " 3247 "instead of pool name or \n" 3248 "\tpool name part of a dataset name to select pool", count); 3249 3250 if (sepp) 3251 *sepp = sep; 3252 /* 3253 * If pool GUID was specified for pool id, replace it with pool name 3254 */ 3255 if (name && (strstr(*target, name) != *target)) { 3256 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3257 3258 *target = umem_alloc(sz, UMEM_NOFAIL); 3259 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3260 } 3261 3262 *configp = name ? match : NULL; 3263 3264 return (name); 3265 } 3266 3267 int 3268 main(int argc, char **argv) 3269 { 3270 int i, c; 3271 struct rlimit rl = { 1024, 1024 }; 3272 spa_t *spa = NULL; 3273 objset_t *os = NULL; 3274 int dump_all = 1; 3275 int verbose = 0; 3276 int error = 0; 3277 char **searchdirs = NULL; 3278 int nsearch = 0; 3279 char *target; 3280 nvlist_t *policy = NULL; 3281 uint64_t max_txg = UINT64_MAX; 3282 int rewind = ZPOOL_NEVER_REWIND; 3283 3284 (void) setrlimit(RLIMIT_NOFILE, &rl); 3285 (void) enable_extended_FILE_stdio(-1, -1); 3286 3287 dprintf_setup(&argc, argv); 3288 3289 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) { 3290 switch (c) { 3291 case 'b': 3292 case 'c': 3293 case 'd': 3294 case 'h': 3295 case 'i': 3296 case 'l': 3297 case 'm': 3298 case 's': 3299 case 'u': 3300 case 'C': 3301 case 'D': 3302 case 'R': 3303 case 'S': 3304 dump_opt[c]++; 3305 dump_all = 0; 3306 break; 3307 case 'A': 3308 case 'F': 3309 case 'L': 3310 case 'X': 3311 case 'e': 3312 case 'P': 3313 dump_opt[c]++; 3314 break; 3315 case 'v': 3316 verbose++; 3317 break; 3318 case 'M': 3319 max_inflight = strtoull(optarg, NULL, 0); 3320 if (max_inflight == 0) { 3321 (void) fprintf(stderr, "maximum number " 3322 "of inflight I/Os must be greater " 3323 "than 0\n"); 3324 usage(); 3325 } 3326 break; 3327 case 'p': 3328 if (searchdirs == NULL) { 3329 searchdirs = umem_alloc(sizeof (char *), 3330 UMEM_NOFAIL); 3331 } else { 3332 char **tmp = umem_alloc((nsearch + 1) * 3333 sizeof (char *), UMEM_NOFAIL); 3334 bcopy(searchdirs, tmp, nsearch * 3335 sizeof (char *)); 3336 umem_free(searchdirs, 3337 nsearch * sizeof (char *)); 3338 searchdirs = tmp; 3339 } 3340 searchdirs[nsearch++] = optarg; 3341 break; 3342 case 't': 3343 max_txg = strtoull(optarg, NULL, 0); 3344 if (max_txg < TXG_INITIAL) { 3345 (void) fprintf(stderr, "incorrect txg " 3346 "specified: %s\n", optarg); 3347 usage(); 3348 } 3349 break; 3350 case 'U': 3351 spa_config_path = optarg; 3352 break; 3353 default: 3354 usage(); 3355 break; 3356 } 3357 } 3358 3359 if (!dump_opt['e'] && searchdirs != NULL) { 3360 (void) fprintf(stderr, "-p option requires use of -e\n"); 3361 usage(); 3362 } 3363 3364 kernel_init(FREAD); 3365 g_zfs = libzfs_init(); 3366 ASSERT(g_zfs != NULL); 3367 3368 if (dump_all) 3369 verbose = MAX(verbose, 1); 3370 3371 for (c = 0; c < 256; c++) { 3372 if (dump_all && !strchr("elAFLRSXP", c)) 3373 dump_opt[c] = 1; 3374 if (dump_opt[c]) 3375 dump_opt[c] += verbose; 3376 } 3377 3378 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3379 zfs_recover = (dump_opt['A'] > 1); 3380 3381 argc -= optind; 3382 argv += optind; 3383 3384 if (argc < 2 && dump_opt['R']) 3385 usage(); 3386 if (argc < 1) { 3387 if (!dump_opt['e'] && dump_opt['C']) { 3388 dump_cachefile(spa_config_path); 3389 return (0); 3390 } 3391 usage(); 3392 } 3393 3394 if (dump_opt['l']) { 3395 dump_label(argv[0]); 3396 return (0); 3397 } 3398 3399 if (dump_opt['X'] || dump_opt['F']) 3400 rewind = ZPOOL_DO_REWIND | 3401 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3402 3403 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3404 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3405 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3406 fatal("internal error: %s", strerror(ENOMEM)); 3407 3408 error = 0; 3409 target = argv[0]; 3410 3411 if (dump_opt['e']) { 3412 nvlist_t *cfg = NULL; 3413 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3414 3415 error = ENOENT; 3416 if (name) { 3417 if (dump_opt['C'] > 1) { 3418 (void) printf("\nConfiguration for import:\n"); 3419 dump_nvlist(cfg, 8); 3420 } 3421 if (nvlist_add_nvlist(cfg, 3422 ZPOOL_REWIND_POLICY, policy) != 0) { 3423 fatal("can't open '%s': %s", 3424 target, strerror(ENOMEM)); 3425 } 3426 if ((error = spa_import(name, cfg, NULL, 3427 ZFS_IMPORT_MISSING_LOG)) != 0) { 3428 error = spa_import(name, cfg, NULL, 3429 ZFS_IMPORT_VERBATIM); 3430 } 3431 } 3432 } 3433 3434 if (error == 0) { 3435 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3436 error = spa_open_rewind(target, &spa, FTAG, policy, 3437 NULL); 3438 if (error) { 3439 /* 3440 * If we're missing the log device then 3441 * try opening the pool after clearing the 3442 * log state. 3443 */ 3444 mutex_enter(&spa_namespace_lock); 3445 if ((spa = spa_lookup(target)) != NULL && 3446 spa->spa_log_state == SPA_LOG_MISSING) { 3447 spa->spa_log_state = SPA_LOG_CLEAR; 3448 error = 0; 3449 } 3450 mutex_exit(&spa_namespace_lock); 3451 3452 if (!error) { 3453 error = spa_open_rewind(target, &spa, 3454 FTAG, policy, NULL); 3455 } 3456 } 3457 } else { 3458 error = dmu_objset_own(target, DMU_OST_ANY, 3459 B_TRUE, FTAG, &os); 3460 } 3461 } 3462 nvlist_free(policy); 3463 3464 if (error) 3465 fatal("can't open '%s': %s", target, strerror(error)); 3466 3467 argv++; 3468 argc--; 3469 if (!dump_opt['R']) { 3470 if (argc > 0) { 3471 zopt_objects = argc; 3472 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3473 for (i = 0; i < zopt_objects; i++) { 3474 errno = 0; 3475 zopt_object[i] = strtoull(argv[i], NULL, 0); 3476 if (zopt_object[i] == 0 && errno != 0) 3477 fatal("bad number %s: %s", 3478 argv[i], strerror(errno)); 3479 } 3480 } 3481 if (os != NULL) { 3482 dump_dir(os); 3483 } else if (zopt_objects > 0 && !dump_opt['m']) { 3484 dump_dir(spa->spa_meta_objset); 3485 } else { 3486 dump_zpool(spa); 3487 } 3488 } else { 3489 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3490 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3491 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3492 flagbits['e'] = ZDB_FLAG_BSWAP; 3493 flagbits['g'] = ZDB_FLAG_GBH; 3494 flagbits['i'] = ZDB_FLAG_INDIRECT; 3495 flagbits['p'] = ZDB_FLAG_PHYS; 3496 flagbits['r'] = ZDB_FLAG_RAW; 3497 3498 for (i = 0; i < argc; i++) 3499 zdb_read_block(argv[i], spa); 3500 } 3501 3502 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3503 3504 fuid_table_destroy(); 3505 sa_loaded = B_FALSE; 3506 3507 libzfs_fini(g_zfs); 3508 kernel_fini(); 3509 3510 return (0); 3511 } 3512