1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 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 boolean_t zfs_recover; 79 #else 80 boolean_t 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] [-x dumpdir] 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:\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, " -x <dumpdir> -- " 167 "dump all read blocks into specified directory\n"); 168 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 169 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 170 "searching for uberblocks\n"); 171 (void) fprintf(stderr, " -M <number of inflight I/Os> -- " 172 "specify the maximum number of " 173 "checksumming I/Os [default is 200]\n"); 174 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 175 "to make only that option verbose\n"); 176 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 177 exit(1); 178 } 179 180 /* 181 * Called for usage errors that are discovered after a call to spa_open(), 182 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 183 */ 184 185 static void 186 fatal(const char *fmt, ...) 187 { 188 va_list ap; 189 190 va_start(ap, fmt); 191 (void) fprintf(stderr, "%s: ", cmdname); 192 (void) vfprintf(stderr, fmt, ap); 193 va_end(ap); 194 (void) fprintf(stderr, "\n"); 195 196 exit(1); 197 } 198 199 /* ARGSUSED */ 200 static void 201 dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 202 { 203 nvlist_t *nv; 204 size_t nvsize = *(uint64_t *)data; 205 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 206 207 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 208 209 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 210 211 umem_free(packed, nvsize); 212 213 dump_nvlist(nv, 8); 214 215 nvlist_free(nv); 216 } 217 218 /* ARGSUSED */ 219 static void 220 dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 221 { 222 spa_history_phys_t *shp = data; 223 224 if (shp == NULL) 225 return; 226 227 (void) printf("\t\tpool_create_len = %llu\n", 228 (u_longlong_t)shp->sh_pool_create_len); 229 (void) printf("\t\tphys_max_off = %llu\n", 230 (u_longlong_t)shp->sh_phys_max_off); 231 (void) printf("\t\tbof = %llu\n", 232 (u_longlong_t)shp->sh_bof); 233 (void) printf("\t\teof = %llu\n", 234 (u_longlong_t)shp->sh_eof); 235 (void) printf("\t\trecords_lost = %llu\n", 236 (u_longlong_t)shp->sh_records_lost); 237 } 238 239 static void 240 zdb_nicenum(uint64_t num, char *buf) 241 { 242 if (dump_opt['P']) 243 (void) sprintf(buf, "%llu", (longlong_t)num); 244 else 245 nicenum(num, buf); 246 } 247 248 const char histo_stars[] = "****************************************"; 249 const int histo_width = sizeof (histo_stars) - 1; 250 251 static void 252 dump_histogram(const uint64_t *histo, int size, int offset) 253 { 254 int i; 255 int minidx = size - 1; 256 int maxidx = 0; 257 uint64_t max = 0; 258 259 for (i = 0; i < size; i++) { 260 if (histo[i] > max) 261 max = histo[i]; 262 if (histo[i] > 0 && i > maxidx) 263 maxidx = i; 264 if (histo[i] > 0 && i < minidx) 265 minidx = i; 266 } 267 268 if (max < histo_width) 269 max = histo_width; 270 271 for (i = minidx; i <= maxidx; i++) { 272 (void) printf("\t\t\t%3u: %6llu %s\n", 273 i + offset, (u_longlong_t)histo[i], 274 &histo_stars[(max - histo[i]) * histo_width / max]); 275 } 276 } 277 278 static void 279 dump_zap_stats(objset_t *os, uint64_t object) 280 { 281 int error; 282 zap_stats_t zs; 283 284 error = zap_get_stats(os, object, &zs); 285 if (error) 286 return; 287 288 if (zs.zs_ptrtbl_len == 0) { 289 ASSERT(zs.zs_num_blocks == 1); 290 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 291 (u_longlong_t)zs.zs_blocksize, 292 (u_longlong_t)zs.zs_num_entries); 293 return; 294 } 295 296 (void) printf("\tFat ZAP stats:\n"); 297 298 (void) printf("\t\tPointer table:\n"); 299 (void) printf("\t\t\t%llu elements\n", 300 (u_longlong_t)zs.zs_ptrtbl_len); 301 (void) printf("\t\t\tzt_blk: %llu\n", 302 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 303 (void) printf("\t\t\tzt_numblks: %llu\n", 304 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 305 (void) printf("\t\t\tzt_shift: %llu\n", 306 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 307 (void) printf("\t\t\tzt_blks_copied: %llu\n", 308 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 309 (void) printf("\t\t\tzt_nextblk: %llu\n", 310 (u_longlong_t)zs.zs_ptrtbl_nextblk); 311 312 (void) printf("\t\tZAP entries: %llu\n", 313 (u_longlong_t)zs.zs_num_entries); 314 (void) printf("\t\tLeaf blocks: %llu\n", 315 (u_longlong_t)zs.zs_num_leafs); 316 (void) printf("\t\tTotal blocks: %llu\n", 317 (u_longlong_t)zs.zs_num_blocks); 318 (void) printf("\t\tzap_block_type: 0x%llx\n", 319 (u_longlong_t)zs.zs_block_type); 320 (void) printf("\t\tzap_magic: 0x%llx\n", 321 (u_longlong_t)zs.zs_magic); 322 (void) printf("\t\tzap_salt: 0x%llx\n", 323 (u_longlong_t)zs.zs_salt); 324 325 (void) printf("\t\tLeafs with 2^n pointers:\n"); 326 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 327 328 (void) printf("\t\tBlocks with n*5 entries:\n"); 329 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 330 331 (void) printf("\t\tBlocks n/10 full:\n"); 332 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 333 334 (void) printf("\t\tEntries with n chunks:\n"); 335 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 336 337 (void) printf("\t\tBuckets with n entries:\n"); 338 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 339 } 340 341 /*ARGSUSED*/ 342 static void 343 dump_none(objset_t *os, uint64_t object, void *data, size_t size) 344 { 345 } 346 347 /*ARGSUSED*/ 348 static void 349 dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 350 { 351 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 352 } 353 354 /*ARGSUSED*/ 355 void 356 dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 357 { 358 } 359 360 /*ARGSUSED*/ 361 static void 362 dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 363 { 364 } 365 366 /*ARGSUSED*/ 367 static void 368 dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 369 { 370 zap_cursor_t zc; 371 zap_attribute_t attr; 372 void *prop; 373 int i; 374 375 dump_zap_stats(os, object); 376 (void) printf("\n"); 377 378 for (zap_cursor_init(&zc, os, object); 379 zap_cursor_retrieve(&zc, &attr) == 0; 380 zap_cursor_advance(&zc)) { 381 (void) printf("\t\t%s = ", attr.za_name); 382 if (attr.za_num_integers == 0) { 383 (void) printf("\n"); 384 continue; 385 } 386 prop = umem_zalloc(attr.za_num_integers * 387 attr.za_integer_length, UMEM_NOFAIL); 388 (void) zap_lookup(os, object, attr.za_name, 389 attr.za_integer_length, attr.za_num_integers, prop); 390 if (attr.za_integer_length == 1) { 391 (void) printf("%s", (char *)prop); 392 } else { 393 for (i = 0; i < attr.za_num_integers; i++) { 394 switch (attr.za_integer_length) { 395 case 2: 396 (void) printf("%u ", 397 ((uint16_t *)prop)[i]); 398 break; 399 case 4: 400 (void) printf("%u ", 401 ((uint32_t *)prop)[i]); 402 break; 403 case 8: 404 (void) printf("%lld ", 405 (u_longlong_t)((int64_t *)prop)[i]); 406 break; 407 } 408 } 409 } 410 (void) printf("\n"); 411 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 412 } 413 zap_cursor_fini(&zc); 414 } 415 416 /*ARGSUSED*/ 417 static void 418 dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 419 { 420 dump_zap_stats(os, object); 421 /* contents are printed elsewhere, properly decoded */ 422 } 423 424 /*ARGSUSED*/ 425 static void 426 dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 427 { 428 zap_cursor_t zc; 429 zap_attribute_t attr; 430 431 dump_zap_stats(os, object); 432 (void) printf("\n"); 433 434 for (zap_cursor_init(&zc, os, object); 435 zap_cursor_retrieve(&zc, &attr) == 0; 436 zap_cursor_advance(&zc)) { 437 (void) printf("\t\t%s = ", attr.za_name); 438 if (attr.za_num_integers == 0) { 439 (void) printf("\n"); 440 continue; 441 } 442 (void) printf(" %llx : [%d:%d:%d]\n", 443 (u_longlong_t)attr.za_first_integer, 444 (int)ATTR_LENGTH(attr.za_first_integer), 445 (int)ATTR_BSWAP(attr.za_first_integer), 446 (int)ATTR_NUM(attr.za_first_integer)); 447 } 448 zap_cursor_fini(&zc); 449 } 450 451 /*ARGSUSED*/ 452 static void 453 dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 454 { 455 zap_cursor_t zc; 456 zap_attribute_t attr; 457 uint16_t *layout_attrs; 458 int i; 459 460 dump_zap_stats(os, object); 461 (void) printf("\n"); 462 463 for (zap_cursor_init(&zc, os, object); 464 zap_cursor_retrieve(&zc, &attr) == 0; 465 zap_cursor_advance(&zc)) { 466 (void) printf("\t\t%s = [", attr.za_name); 467 if (attr.za_num_integers == 0) { 468 (void) printf("\n"); 469 continue; 470 } 471 472 VERIFY(attr.za_integer_length == 2); 473 layout_attrs = umem_zalloc(attr.za_num_integers * 474 attr.za_integer_length, UMEM_NOFAIL); 475 476 VERIFY(zap_lookup(os, object, attr.za_name, 477 attr.za_integer_length, 478 attr.za_num_integers, layout_attrs) == 0); 479 480 for (i = 0; i != attr.za_num_integers; i++) 481 (void) printf(" %d ", (int)layout_attrs[i]); 482 (void) printf("]\n"); 483 umem_free(layout_attrs, 484 attr.za_num_integers * attr.za_integer_length); 485 } 486 zap_cursor_fini(&zc); 487 } 488 489 /*ARGSUSED*/ 490 static void 491 dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 492 { 493 zap_cursor_t zc; 494 zap_attribute_t attr; 495 const char *typenames[] = { 496 /* 0 */ "not specified", 497 /* 1 */ "FIFO", 498 /* 2 */ "Character Device", 499 /* 3 */ "3 (invalid)", 500 /* 4 */ "Directory", 501 /* 5 */ "5 (invalid)", 502 /* 6 */ "Block Device", 503 /* 7 */ "7 (invalid)", 504 /* 8 */ "Regular File", 505 /* 9 */ "9 (invalid)", 506 /* 10 */ "Symbolic Link", 507 /* 11 */ "11 (invalid)", 508 /* 12 */ "Socket", 509 /* 13 */ "Door", 510 /* 14 */ "Event Port", 511 /* 15 */ "15 (invalid)", 512 }; 513 514 dump_zap_stats(os, object); 515 (void) printf("\n"); 516 517 for (zap_cursor_init(&zc, os, object); 518 zap_cursor_retrieve(&zc, &attr) == 0; 519 zap_cursor_advance(&zc)) { 520 (void) printf("\t\t%s = %lld (type: %s)\n", 521 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 522 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 523 } 524 zap_cursor_fini(&zc); 525 } 526 527 int 528 get_dtl_refcount(vdev_t *vd) 529 { 530 int refcount = 0; 531 532 if (vd->vdev_ops->vdev_op_leaf) { 533 space_map_t *sm = vd->vdev_dtl_sm; 534 535 if (sm != NULL && 536 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 537 return (1); 538 return (0); 539 } 540 541 for (int c = 0; c < vd->vdev_children; c++) 542 refcount += get_dtl_refcount(vd->vdev_child[c]); 543 return (refcount); 544 } 545 546 int 547 get_metaslab_refcount(vdev_t *vd) 548 { 549 int refcount = 0; 550 551 if (vd->vdev_top == vd) { 552 for (int m = 0; m < vd->vdev_ms_count; m++) { 553 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 554 555 if (sm != NULL && 556 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 557 refcount++; 558 } 559 } 560 for (int c = 0; c < vd->vdev_children; c++) 561 refcount += get_metaslab_refcount(vd->vdev_child[c]); 562 563 return (refcount); 564 } 565 566 static int 567 verify_spacemap_refcounts(spa_t *spa) 568 { 569 uint64_t expected_refcount = 0; 570 uint64_t actual_refcount; 571 572 (void) feature_get_refcount(spa, 573 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 574 &expected_refcount); 575 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 576 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 577 578 if (expected_refcount != actual_refcount) { 579 (void) printf("space map refcount mismatch: expected %lld != " 580 "actual %lld\n", 581 (longlong_t)expected_refcount, 582 (longlong_t)actual_refcount); 583 return (2); 584 } 585 return (0); 586 } 587 588 static void 589 dump_spacemap(objset_t *os, space_map_t *sm) 590 { 591 uint64_t alloc, offset, entry; 592 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 593 "INVALID", "INVALID", "INVALID", "INVALID" }; 594 595 if (sm == NULL) 596 return; 597 598 /* 599 * Print out the freelist entries in both encoded and decoded form. 600 */ 601 alloc = 0; 602 for (offset = 0; offset < space_map_length(sm); 603 offset += sizeof (entry)) { 604 uint8_t mapshift = sm->sm_shift; 605 606 VERIFY0(dmu_read(os, space_map_object(sm), offset, 607 sizeof (entry), &entry, DMU_READ_PREFETCH)); 608 if (SM_DEBUG_DECODE(entry)) { 609 610 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 611 (u_longlong_t)(offset / sizeof (entry)), 612 ddata[SM_DEBUG_ACTION_DECODE(entry)], 613 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 614 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 615 } else { 616 (void) printf("\t [%6llu] %c range:" 617 " %010llx-%010llx size: %06llx\n", 618 (u_longlong_t)(offset / sizeof (entry)), 619 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 620 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 621 mapshift) + sm->sm_start), 622 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 623 mapshift) + sm->sm_start + 624 (SM_RUN_DECODE(entry) << mapshift)), 625 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 626 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 627 alloc += SM_RUN_DECODE(entry) << mapshift; 628 else 629 alloc -= SM_RUN_DECODE(entry) << mapshift; 630 } 631 } 632 if (alloc != space_map_allocated(sm)) { 633 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 634 "with space map summary (%llu)\n", 635 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 636 } 637 } 638 639 static void 640 dump_metaslab_stats(metaslab_t *msp) 641 { 642 char maxbuf[32]; 643 range_tree_t *rt = msp->ms_tree; 644 avl_tree_t *t = &msp->ms_size_tree; 645 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 646 647 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 648 649 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 650 "segments", avl_numnodes(t), "maxsize", maxbuf, 651 "freepct", free_pct); 652 (void) printf("\tIn-memory histogram:\n"); 653 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 654 } 655 656 static void 657 dump_metaslab(metaslab_t *msp) 658 { 659 vdev_t *vd = msp->ms_group->mg_vd; 660 spa_t *spa = vd->vdev_spa; 661 space_map_t *sm = msp->ms_sm; 662 char freebuf[32]; 663 664 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 665 666 (void) printf( 667 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 668 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 669 (u_longlong_t)space_map_object(sm), freebuf); 670 671 if (dump_opt['m'] > 2 && !dump_opt['L']) { 672 mutex_enter(&msp->ms_lock); 673 metaslab_load_wait(msp); 674 if (!msp->ms_loaded) { 675 VERIFY0(metaslab_load(msp)); 676 range_tree_stat_verify(msp->ms_tree); 677 } 678 dump_metaslab_stats(msp); 679 metaslab_unload(msp); 680 mutex_exit(&msp->ms_lock); 681 } 682 683 if (dump_opt['m'] > 1 && sm != NULL && 684 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 685 /* 686 * The space map histogram represents free space in chunks 687 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 688 */ 689 (void) printf("\tOn-disk histogram:\n"); 690 dump_histogram(sm->sm_phys->smp_histogram, 691 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift); 692 } 693 694 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 695 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 696 697 mutex_enter(&msp->ms_lock); 698 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 699 mutex_exit(&msp->ms_lock); 700 } 701 } 702 703 static void 704 print_vdev_metaslab_header(vdev_t *vd) 705 { 706 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 707 (u_longlong_t)vd->vdev_id, 708 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 709 "offset", "spacemap", "free"); 710 (void) printf("\t%15s %19s %15s %10s\n", 711 "---------------", "-------------------", 712 "---------------", "-------------"); 713 } 714 715 static void 716 dump_metaslabs(spa_t *spa) 717 { 718 vdev_t *vd, *rvd = spa->spa_root_vdev; 719 uint64_t m, c = 0, children = rvd->vdev_children; 720 721 (void) printf("\nMetaslabs:\n"); 722 723 if (!dump_opt['d'] && zopt_objects > 0) { 724 c = zopt_object[0]; 725 726 if (c >= children) 727 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 728 729 if (zopt_objects > 1) { 730 vd = rvd->vdev_child[c]; 731 print_vdev_metaslab_header(vd); 732 733 for (m = 1; m < zopt_objects; m++) { 734 if (zopt_object[m] < vd->vdev_ms_count) 735 dump_metaslab( 736 vd->vdev_ms[zopt_object[m]]); 737 else 738 (void) fprintf(stderr, "bad metaslab " 739 "number %llu\n", 740 (u_longlong_t)zopt_object[m]); 741 } 742 (void) printf("\n"); 743 return; 744 } 745 children = c + 1; 746 } 747 for (; c < children; c++) { 748 vd = rvd->vdev_child[c]; 749 print_vdev_metaslab_header(vd); 750 751 for (m = 0; m < vd->vdev_ms_count; m++) 752 dump_metaslab(vd->vdev_ms[m]); 753 (void) printf("\n"); 754 } 755 } 756 757 static void 758 dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 759 { 760 const ddt_phys_t *ddp = dde->dde_phys; 761 const ddt_key_t *ddk = &dde->dde_key; 762 char *types[4] = { "ditto", "single", "double", "triple" }; 763 char blkbuf[BP_SPRINTF_LEN]; 764 blkptr_t blk; 765 766 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 767 if (ddp->ddp_phys_birth == 0) 768 continue; 769 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 770 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 771 (void) printf("index %llx refcnt %llu %s %s\n", 772 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 773 types[p], blkbuf); 774 } 775 } 776 777 static void 778 dump_dedup_ratio(const ddt_stat_t *dds) 779 { 780 double rL, rP, rD, D, dedup, compress, copies; 781 782 if (dds->dds_blocks == 0) 783 return; 784 785 rL = (double)dds->dds_ref_lsize; 786 rP = (double)dds->dds_ref_psize; 787 rD = (double)dds->dds_ref_dsize; 788 D = (double)dds->dds_dsize; 789 790 dedup = rD / D; 791 compress = rL / rP; 792 copies = rD / rP; 793 794 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 795 "dedup * compress / copies = %.2f\n\n", 796 dedup, compress, copies, dedup * compress / copies); 797 } 798 799 static void 800 dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 801 { 802 char name[DDT_NAMELEN]; 803 ddt_entry_t dde; 804 uint64_t walk = 0; 805 dmu_object_info_t doi; 806 uint64_t count, dspace, mspace; 807 int error; 808 809 error = ddt_object_info(ddt, type, class, &doi); 810 811 if (error == ENOENT) 812 return; 813 ASSERT(error == 0); 814 815 if ((count = ddt_object_count(ddt, type, class)) == 0) 816 return; 817 818 dspace = doi.doi_physical_blocks_512 << 9; 819 mspace = doi.doi_fill_count * doi.doi_data_block_size; 820 821 ddt_object_name(ddt, type, class, name); 822 823 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 824 name, 825 (u_longlong_t)count, 826 (u_longlong_t)(dspace / count), 827 (u_longlong_t)(mspace / count)); 828 829 if (dump_opt['D'] < 3) 830 return; 831 832 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 833 834 if (dump_opt['D'] < 4) 835 return; 836 837 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 838 return; 839 840 (void) printf("%s contents:\n\n", name); 841 842 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 843 dump_dde(ddt, &dde, walk); 844 845 ASSERT(error == ENOENT); 846 847 (void) printf("\n"); 848 } 849 850 static void 851 dump_all_ddts(spa_t *spa) 852 { 853 ddt_histogram_t ddh_total = { 0 }; 854 ddt_stat_t dds_total = { 0 }; 855 856 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 857 ddt_t *ddt = spa->spa_ddt[c]; 858 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 859 for (enum ddt_class class = 0; class < DDT_CLASSES; 860 class++) { 861 dump_ddt(ddt, type, class); 862 } 863 } 864 } 865 866 ddt_get_dedup_stats(spa, &dds_total); 867 868 if (dds_total.dds_blocks == 0) { 869 (void) printf("All DDTs are empty\n"); 870 return; 871 } 872 873 (void) printf("\n"); 874 875 if (dump_opt['D'] > 1) { 876 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 877 ddt_get_dedup_histogram(spa, &ddh_total); 878 zpool_dump_ddt(&dds_total, &ddh_total); 879 } 880 881 dump_dedup_ratio(&dds_total); 882 } 883 884 static void 885 dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 886 { 887 char *prefix = arg; 888 889 (void) printf("%s [%llu,%llu) length %llu\n", 890 prefix, 891 (u_longlong_t)start, 892 (u_longlong_t)(start + size), 893 (u_longlong_t)(size)); 894 } 895 896 static void 897 dump_dtl(vdev_t *vd, int indent) 898 { 899 spa_t *spa = vd->vdev_spa; 900 boolean_t required; 901 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 902 char prefix[256]; 903 904 spa_vdev_state_enter(spa, SCL_NONE); 905 required = vdev_dtl_required(vd); 906 (void) spa_vdev_state_exit(spa, NULL, 0); 907 908 if (indent == 0) 909 (void) printf("\nDirty time logs:\n\n"); 910 911 (void) printf("\t%*s%s [%s]\n", indent, "", 912 vd->vdev_path ? vd->vdev_path : 913 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 914 required ? "DTL-required" : "DTL-expendable"); 915 916 for (int t = 0; t < DTL_TYPES; t++) { 917 range_tree_t *rt = vd->vdev_dtl[t]; 918 if (range_tree_space(rt) == 0) 919 continue; 920 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 921 indent + 2, "", name[t]); 922 mutex_enter(rt->rt_lock); 923 range_tree_walk(rt, dump_dtl_seg, prefix); 924 mutex_exit(rt->rt_lock); 925 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 926 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 927 } 928 929 for (int c = 0; c < vd->vdev_children; c++) 930 dump_dtl(vd->vdev_child[c], indent + 4); 931 } 932 933 static void 934 dump_history(spa_t *spa) 935 { 936 nvlist_t **events = NULL; 937 char buf[SPA_MAXBLOCKSIZE]; 938 uint64_t resid, len, off = 0; 939 uint_t num = 0; 940 int error; 941 time_t tsec; 942 struct tm t; 943 char tbuf[30]; 944 char internalstr[MAXPATHLEN]; 945 946 do { 947 len = sizeof (buf); 948 949 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 950 (void) fprintf(stderr, "Unable to read history: " 951 "error %d\n", error); 952 return; 953 } 954 955 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 956 break; 957 958 off -= resid; 959 } while (len != 0); 960 961 (void) printf("\nHistory:\n"); 962 for (int i = 0; i < num; i++) { 963 uint64_t time, txg, ievent; 964 char *cmd, *intstr; 965 boolean_t printed = B_FALSE; 966 967 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 968 &time) != 0) 969 goto next; 970 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 971 &cmd) != 0) { 972 if (nvlist_lookup_uint64(events[i], 973 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 974 goto next; 975 verify(nvlist_lookup_uint64(events[i], 976 ZPOOL_HIST_TXG, &txg) == 0); 977 verify(nvlist_lookup_string(events[i], 978 ZPOOL_HIST_INT_STR, &intstr) == 0); 979 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 980 goto next; 981 982 (void) snprintf(internalstr, 983 sizeof (internalstr), 984 "[internal %s txg:%lld] %s", 985 zfs_history_event_names[ievent], txg, 986 intstr); 987 cmd = internalstr; 988 } 989 tsec = time; 990 (void) localtime_r(&tsec, &t); 991 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 992 (void) printf("%s %s\n", tbuf, cmd); 993 printed = B_TRUE; 994 995 next: 996 if (dump_opt['h'] > 1) { 997 if (!printed) 998 (void) printf("unrecognized record:\n"); 999 dump_nvlist(events[i], 2); 1000 } 1001 } 1002 } 1003 1004 /*ARGSUSED*/ 1005 static void 1006 dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1007 { 1008 } 1009 1010 static uint64_t 1011 blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1012 const zbookmark_phys_t *zb) 1013 { 1014 if (dnp == NULL) { 1015 ASSERT(zb->zb_level < 0); 1016 if (zb->zb_object == 0) 1017 return (zb->zb_blkid); 1018 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1019 } 1020 1021 ASSERT(zb->zb_level >= 0); 1022 1023 return ((zb->zb_blkid << 1024 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1025 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1026 } 1027 1028 static void 1029 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1030 { 1031 const dva_t *dva = bp->blk_dva; 1032 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1033 1034 if (dump_opt['b'] >= 6) { 1035 snprintf_blkptr(blkbuf, buflen, bp); 1036 return; 1037 } 1038 1039 if (BP_IS_EMBEDDED(bp)) { 1040 (void) sprintf(blkbuf, 1041 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1042 (int)BPE_GET_ETYPE(bp), 1043 (u_longlong_t)BPE_GET_LSIZE(bp), 1044 (u_longlong_t)BPE_GET_PSIZE(bp), 1045 (u_longlong_t)bp->blk_birth); 1046 return; 1047 } 1048 1049 blkbuf[0] = '\0'; 1050 for (int i = 0; i < ndvas; i++) 1051 (void) snprintf(blkbuf + strlen(blkbuf), 1052 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1053 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1054 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1055 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1056 1057 if (BP_IS_HOLE(bp)) { 1058 (void) snprintf(blkbuf + strlen(blkbuf), 1059 buflen - strlen(blkbuf), "B=%llu", 1060 (u_longlong_t)bp->blk_birth); 1061 } else { 1062 (void) snprintf(blkbuf + strlen(blkbuf), 1063 buflen - strlen(blkbuf), 1064 "%llxL/%llxP F=%llu B=%llu/%llu", 1065 (u_longlong_t)BP_GET_LSIZE(bp), 1066 (u_longlong_t)BP_GET_PSIZE(bp), 1067 (u_longlong_t)BP_GET_FILL(bp), 1068 (u_longlong_t)bp->blk_birth, 1069 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1070 } 1071 } 1072 1073 static void 1074 print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1075 const dnode_phys_t *dnp) 1076 { 1077 char blkbuf[BP_SPRINTF_LEN]; 1078 int l; 1079 1080 if (!BP_IS_EMBEDDED(bp)) { 1081 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1082 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1083 } 1084 1085 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1086 1087 ASSERT(zb->zb_level >= 0); 1088 1089 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1090 if (l == zb->zb_level) { 1091 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1092 } else { 1093 (void) printf(" "); 1094 } 1095 } 1096 1097 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1098 (void) printf("%s\n", blkbuf); 1099 } 1100 1101 static int 1102 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1103 blkptr_t *bp, const zbookmark_phys_t *zb) 1104 { 1105 int err = 0; 1106 1107 if (bp->blk_birth == 0) 1108 return (0); 1109 1110 print_indirect(bp, zb, dnp); 1111 1112 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1113 uint32_t flags = ARC_WAIT; 1114 int i; 1115 blkptr_t *cbp; 1116 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1117 arc_buf_t *buf; 1118 uint64_t fill = 0; 1119 1120 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1121 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1122 if (err) 1123 return (err); 1124 ASSERT(buf->b_data); 1125 1126 /* recursively visit blocks below this */ 1127 cbp = buf->b_data; 1128 for (i = 0; i < epb; i++, cbp++) { 1129 zbookmark_phys_t czb; 1130 1131 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1132 zb->zb_level - 1, 1133 zb->zb_blkid * epb + i); 1134 err = visit_indirect(spa, dnp, cbp, &czb); 1135 if (err) 1136 break; 1137 fill += BP_GET_FILL(cbp); 1138 } 1139 if (!err) 1140 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1141 (void) arc_buf_remove_ref(buf, &buf); 1142 } 1143 1144 return (err); 1145 } 1146 1147 /*ARGSUSED*/ 1148 static void 1149 dump_indirect(dnode_t *dn) 1150 { 1151 dnode_phys_t *dnp = dn->dn_phys; 1152 int j; 1153 zbookmark_phys_t czb; 1154 1155 (void) printf("Indirect blocks:\n"); 1156 1157 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1158 dn->dn_object, dnp->dn_nlevels - 1, 0); 1159 for (j = 0; j < dnp->dn_nblkptr; j++) { 1160 czb.zb_blkid = j; 1161 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1162 &dnp->dn_blkptr[j], &czb); 1163 } 1164 1165 (void) printf("\n"); 1166 } 1167 1168 /*ARGSUSED*/ 1169 static void 1170 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1171 { 1172 dsl_dir_phys_t *dd = data; 1173 time_t crtime; 1174 char nice[32]; 1175 1176 if (dd == NULL) 1177 return; 1178 1179 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1180 1181 crtime = dd->dd_creation_time; 1182 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1183 (void) printf("\t\thead_dataset_obj = %llu\n", 1184 (u_longlong_t)dd->dd_head_dataset_obj); 1185 (void) printf("\t\tparent_dir_obj = %llu\n", 1186 (u_longlong_t)dd->dd_parent_obj); 1187 (void) printf("\t\torigin_obj = %llu\n", 1188 (u_longlong_t)dd->dd_origin_obj); 1189 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1190 (u_longlong_t)dd->dd_child_dir_zapobj); 1191 zdb_nicenum(dd->dd_used_bytes, nice); 1192 (void) printf("\t\tused_bytes = %s\n", nice); 1193 zdb_nicenum(dd->dd_compressed_bytes, nice); 1194 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1195 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1196 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1197 zdb_nicenum(dd->dd_quota, nice); 1198 (void) printf("\t\tquota = %s\n", nice); 1199 zdb_nicenum(dd->dd_reserved, nice); 1200 (void) printf("\t\treserved = %s\n", nice); 1201 (void) printf("\t\tprops_zapobj = %llu\n", 1202 (u_longlong_t)dd->dd_props_zapobj); 1203 (void) printf("\t\tdeleg_zapobj = %llu\n", 1204 (u_longlong_t)dd->dd_deleg_zapobj); 1205 (void) printf("\t\tflags = %llx\n", 1206 (u_longlong_t)dd->dd_flags); 1207 1208 #define DO(which) \ 1209 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1210 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1211 DO(HEAD); 1212 DO(SNAP); 1213 DO(CHILD); 1214 DO(CHILD_RSRV); 1215 DO(REFRSRV); 1216 #undef DO 1217 } 1218 1219 /*ARGSUSED*/ 1220 static void 1221 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1222 { 1223 dsl_dataset_phys_t *ds = data; 1224 time_t crtime; 1225 char used[32], compressed[32], uncompressed[32], unique[32]; 1226 char blkbuf[BP_SPRINTF_LEN]; 1227 1228 if (ds == NULL) 1229 return; 1230 1231 ASSERT(size == sizeof (*ds)); 1232 crtime = ds->ds_creation_time; 1233 zdb_nicenum(ds->ds_referenced_bytes, used); 1234 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1235 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1236 zdb_nicenum(ds->ds_unique_bytes, unique); 1237 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1238 1239 (void) printf("\t\tdir_obj = %llu\n", 1240 (u_longlong_t)ds->ds_dir_obj); 1241 (void) printf("\t\tprev_snap_obj = %llu\n", 1242 (u_longlong_t)ds->ds_prev_snap_obj); 1243 (void) printf("\t\tprev_snap_txg = %llu\n", 1244 (u_longlong_t)ds->ds_prev_snap_txg); 1245 (void) printf("\t\tnext_snap_obj = %llu\n", 1246 (u_longlong_t)ds->ds_next_snap_obj); 1247 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1248 (u_longlong_t)ds->ds_snapnames_zapobj); 1249 (void) printf("\t\tnum_children = %llu\n", 1250 (u_longlong_t)ds->ds_num_children); 1251 (void) printf("\t\tuserrefs_obj = %llu\n", 1252 (u_longlong_t)ds->ds_userrefs_obj); 1253 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1254 (void) printf("\t\tcreation_txg = %llu\n", 1255 (u_longlong_t)ds->ds_creation_txg); 1256 (void) printf("\t\tdeadlist_obj = %llu\n", 1257 (u_longlong_t)ds->ds_deadlist_obj); 1258 (void) printf("\t\tused_bytes = %s\n", used); 1259 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1260 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1261 (void) printf("\t\tunique = %s\n", unique); 1262 (void) printf("\t\tfsid_guid = %llu\n", 1263 (u_longlong_t)ds->ds_fsid_guid); 1264 (void) printf("\t\tguid = %llu\n", 1265 (u_longlong_t)ds->ds_guid); 1266 (void) printf("\t\tflags = %llx\n", 1267 (u_longlong_t)ds->ds_flags); 1268 (void) printf("\t\tnext_clones_obj = %llu\n", 1269 (u_longlong_t)ds->ds_next_clones_obj); 1270 (void) printf("\t\tprops_obj = %llu\n", 1271 (u_longlong_t)ds->ds_props_obj); 1272 (void) printf("\t\tbp = %s\n", blkbuf); 1273 } 1274 1275 /* ARGSUSED */ 1276 static int 1277 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1278 { 1279 char blkbuf[BP_SPRINTF_LEN]; 1280 1281 if (bp->blk_birth != 0) { 1282 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1283 (void) printf("\t%s\n", blkbuf); 1284 } 1285 return (0); 1286 } 1287 1288 static void 1289 dump_bptree(objset_t *os, uint64_t obj, char *name) 1290 { 1291 char bytes[32]; 1292 bptree_phys_t *bt; 1293 dmu_buf_t *db; 1294 1295 if (dump_opt['d'] < 3) 1296 return; 1297 1298 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1299 bt = db->db_data; 1300 zdb_nicenum(bt->bt_bytes, bytes); 1301 (void) printf("\n %s: %llu datasets, %s\n", 1302 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1303 dmu_buf_rele(db, FTAG); 1304 1305 if (dump_opt['d'] < 5) 1306 return; 1307 1308 (void) printf("\n"); 1309 1310 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1311 } 1312 1313 /* ARGSUSED */ 1314 static int 1315 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1316 { 1317 char blkbuf[BP_SPRINTF_LEN]; 1318 1319 ASSERT(bp->blk_birth != 0); 1320 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1321 (void) printf("\t%s\n", blkbuf); 1322 return (0); 1323 } 1324 1325 static void 1326 dump_bpobj(bpobj_t *bpo, char *name, int indent) 1327 { 1328 char bytes[32]; 1329 char comp[32]; 1330 char uncomp[32]; 1331 1332 if (dump_opt['d'] < 3) 1333 return; 1334 1335 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1336 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1337 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1338 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1339 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1340 "%llu subobjs, %s (%s/%s comp)\n", 1341 indent * 8, name, 1342 (u_longlong_t)bpo->bpo_object, 1343 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1344 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1345 bytes, comp, uncomp); 1346 1347 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1348 uint64_t subobj; 1349 bpobj_t subbpo; 1350 int error; 1351 VERIFY0(dmu_read(bpo->bpo_os, 1352 bpo->bpo_phys->bpo_subobjs, 1353 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1354 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1355 if (error != 0) { 1356 (void) printf("ERROR %u while trying to open " 1357 "subobj id %llu\n", 1358 error, (u_longlong_t)subobj); 1359 continue; 1360 } 1361 dump_bpobj(&subbpo, "subobj", indent + 1); 1362 bpobj_close(&subbpo); 1363 } 1364 } else { 1365 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1366 indent * 8, name, 1367 (u_longlong_t)bpo->bpo_object, 1368 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1369 bytes); 1370 } 1371 1372 if (dump_opt['d'] < 5) 1373 return; 1374 1375 1376 if (indent == 0) { 1377 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1378 (void) printf("\n"); 1379 } 1380 } 1381 1382 static void 1383 dump_deadlist(dsl_deadlist_t *dl) 1384 { 1385 dsl_deadlist_entry_t *dle; 1386 uint64_t unused; 1387 char bytes[32]; 1388 char comp[32]; 1389 char uncomp[32]; 1390 1391 if (dump_opt['d'] < 3) 1392 return; 1393 1394 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1395 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1396 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1397 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1398 bytes, comp, uncomp); 1399 1400 if (dump_opt['d'] < 4) 1401 return; 1402 1403 (void) printf("\n"); 1404 1405 /* force the tree to be loaded */ 1406 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1407 1408 for (dle = avl_first(&dl->dl_tree); dle; 1409 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1410 if (dump_opt['d'] >= 5) { 1411 char buf[128]; 1412 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1413 (longlong_t)dle->dle_mintxg, 1414 (longlong_t)dle->dle_bpobj.bpo_object); 1415 1416 dump_bpobj(&dle->dle_bpobj, buf, 0); 1417 } else { 1418 (void) printf("mintxg %llu -> obj %llu\n", 1419 (longlong_t)dle->dle_mintxg, 1420 (longlong_t)dle->dle_bpobj.bpo_object); 1421 1422 } 1423 } 1424 } 1425 1426 static avl_tree_t idx_tree; 1427 static avl_tree_t domain_tree; 1428 static boolean_t fuid_table_loaded; 1429 static boolean_t sa_loaded; 1430 sa_attr_type_t *sa_attr_table; 1431 1432 static void 1433 fuid_table_destroy() 1434 { 1435 if (fuid_table_loaded) { 1436 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1437 fuid_table_loaded = B_FALSE; 1438 } 1439 } 1440 1441 /* 1442 * print uid or gid information. 1443 * For normal POSIX id just the id is printed in decimal format. 1444 * For CIFS files with FUID the fuid is printed in hex followed by 1445 * the domain-rid string. 1446 */ 1447 static void 1448 print_idstr(uint64_t id, const char *id_type) 1449 { 1450 if (FUID_INDEX(id)) { 1451 char *domain; 1452 1453 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1454 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1455 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1456 } else { 1457 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1458 } 1459 1460 } 1461 1462 static void 1463 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1464 { 1465 uint32_t uid_idx, gid_idx; 1466 1467 uid_idx = FUID_INDEX(uid); 1468 gid_idx = FUID_INDEX(gid); 1469 1470 /* Load domain table, if not already loaded */ 1471 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1472 uint64_t fuid_obj; 1473 1474 /* first find the fuid object. It lives in the master node */ 1475 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1476 8, 1, &fuid_obj) == 0); 1477 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1478 (void) zfs_fuid_table_load(os, fuid_obj, 1479 &idx_tree, &domain_tree); 1480 fuid_table_loaded = B_TRUE; 1481 } 1482 1483 print_idstr(uid, "uid"); 1484 print_idstr(gid, "gid"); 1485 } 1486 1487 /*ARGSUSED*/ 1488 static void 1489 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1490 { 1491 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1492 sa_handle_t *hdl; 1493 uint64_t xattr, rdev, gen; 1494 uint64_t uid, gid, mode, fsize, parent, links; 1495 uint64_t pflags; 1496 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1497 time_t z_crtime, z_atime, z_mtime, z_ctime; 1498 sa_bulk_attr_t bulk[12]; 1499 int idx = 0; 1500 int error; 1501 1502 if (!sa_loaded) { 1503 uint64_t sa_attrs = 0; 1504 uint64_t version; 1505 1506 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1507 8, 1, &version) == 0); 1508 if (version >= ZPL_VERSION_SA) { 1509 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1510 8, 1, &sa_attrs) == 0); 1511 } 1512 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1513 ZPL_END, &sa_attr_table)) != 0) { 1514 (void) printf("sa_setup failed errno %d, can't " 1515 "display znode contents\n", error); 1516 return; 1517 } 1518 sa_loaded = B_TRUE; 1519 } 1520 1521 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1522 (void) printf("Failed to get handle for SA znode\n"); 1523 return; 1524 } 1525 1526 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1527 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1528 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1529 &links, 8); 1530 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1531 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1532 &mode, 8); 1533 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1534 NULL, &parent, 8); 1535 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1536 &fsize, 8); 1537 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1538 acctm, 16); 1539 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1540 modtm, 16); 1541 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1542 crtm, 16); 1543 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1544 chgtm, 16); 1545 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1546 &pflags, 8); 1547 1548 if (sa_bulk_lookup(hdl, bulk, idx)) { 1549 (void) sa_handle_destroy(hdl); 1550 return; 1551 } 1552 1553 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1554 if (error != 0) { 1555 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1556 (u_longlong_t)object); 1557 } 1558 if (dump_opt['d'] < 3) { 1559 (void) printf("\t%s\n", path); 1560 (void) sa_handle_destroy(hdl); 1561 return; 1562 } 1563 1564 z_crtime = (time_t)crtm[0]; 1565 z_atime = (time_t)acctm[0]; 1566 z_mtime = (time_t)modtm[0]; 1567 z_ctime = (time_t)chgtm[0]; 1568 1569 (void) printf("\tpath %s\n", path); 1570 dump_uidgid(os, uid, gid); 1571 (void) printf("\tatime %s", ctime(&z_atime)); 1572 (void) printf("\tmtime %s", ctime(&z_mtime)); 1573 (void) printf("\tctime %s", ctime(&z_ctime)); 1574 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1575 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1576 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1577 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1578 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1579 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1580 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1581 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1582 sizeof (uint64_t)) == 0) 1583 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1584 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1585 sizeof (uint64_t)) == 0) 1586 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1587 sa_handle_destroy(hdl); 1588 } 1589 1590 /*ARGSUSED*/ 1591 static void 1592 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1593 { 1594 } 1595 1596 /*ARGSUSED*/ 1597 static void 1598 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1599 { 1600 } 1601 1602 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1603 dump_none, /* unallocated */ 1604 dump_zap, /* object directory */ 1605 dump_uint64, /* object array */ 1606 dump_none, /* packed nvlist */ 1607 dump_packed_nvlist, /* packed nvlist size */ 1608 dump_none, /* bplist */ 1609 dump_none, /* bplist header */ 1610 dump_none, /* SPA space map header */ 1611 dump_none, /* SPA space map */ 1612 dump_none, /* ZIL intent log */ 1613 dump_dnode, /* DMU dnode */ 1614 dump_dmu_objset, /* DMU objset */ 1615 dump_dsl_dir, /* DSL directory */ 1616 dump_zap, /* DSL directory child map */ 1617 dump_zap, /* DSL dataset snap map */ 1618 dump_zap, /* DSL props */ 1619 dump_dsl_dataset, /* DSL dataset */ 1620 dump_znode, /* ZFS znode */ 1621 dump_acl, /* ZFS V0 ACL */ 1622 dump_uint8, /* ZFS plain file */ 1623 dump_zpldir, /* ZFS directory */ 1624 dump_zap, /* ZFS master node */ 1625 dump_zap, /* ZFS delete queue */ 1626 dump_uint8, /* zvol object */ 1627 dump_zap, /* zvol prop */ 1628 dump_uint8, /* other uint8[] */ 1629 dump_uint64, /* other uint64[] */ 1630 dump_zap, /* other ZAP */ 1631 dump_zap, /* persistent error log */ 1632 dump_uint8, /* SPA history */ 1633 dump_history_offsets, /* SPA history offsets */ 1634 dump_zap, /* Pool properties */ 1635 dump_zap, /* DSL permissions */ 1636 dump_acl, /* ZFS ACL */ 1637 dump_uint8, /* ZFS SYSACL */ 1638 dump_none, /* FUID nvlist */ 1639 dump_packed_nvlist, /* FUID nvlist size */ 1640 dump_zap, /* DSL dataset next clones */ 1641 dump_zap, /* DSL scrub queue */ 1642 dump_zap, /* ZFS user/group used */ 1643 dump_zap, /* ZFS user/group quota */ 1644 dump_zap, /* snapshot refcount tags */ 1645 dump_ddt_zap, /* DDT ZAP object */ 1646 dump_zap, /* DDT statistics */ 1647 dump_znode, /* SA object */ 1648 dump_zap, /* SA Master Node */ 1649 dump_sa_attrs, /* SA attribute registration */ 1650 dump_sa_layouts, /* SA attribute layouts */ 1651 dump_zap, /* DSL scrub translations */ 1652 dump_none, /* fake dedup BP */ 1653 dump_zap, /* deadlist */ 1654 dump_none, /* deadlist hdr */ 1655 dump_zap, /* dsl clones */ 1656 dump_none, /* bpobj subobjs */ 1657 dump_unknown, /* Unknown type, must be last */ 1658 }; 1659 1660 static void 1661 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1662 { 1663 dmu_buf_t *db = NULL; 1664 dmu_object_info_t doi; 1665 dnode_t *dn; 1666 void *bonus = NULL; 1667 size_t bsize = 0; 1668 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1669 char bonus_size[32]; 1670 char aux[50]; 1671 int error; 1672 1673 if (*print_header) { 1674 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1675 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1676 "%full", "type"); 1677 *print_header = 0; 1678 } 1679 1680 if (object == 0) { 1681 dn = DMU_META_DNODE(os); 1682 } else { 1683 error = dmu_bonus_hold(os, object, FTAG, &db); 1684 if (error) 1685 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1686 object, error); 1687 bonus = db->db_data; 1688 bsize = db->db_size; 1689 dn = DB_DNODE((dmu_buf_impl_t *)db); 1690 } 1691 dmu_object_info_from_dnode(dn, &doi); 1692 1693 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1694 zdb_nicenum(doi.doi_data_block_size, dblk); 1695 zdb_nicenum(doi.doi_max_offset, lsize); 1696 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1697 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1698 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1699 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1700 doi.doi_max_offset); 1701 1702 aux[0] = '\0'; 1703 1704 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1705 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1706 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1707 } 1708 1709 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1710 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1711 ZDB_COMPRESS_NAME(doi.doi_compress)); 1712 } 1713 1714 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1715 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1716 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1717 1718 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1719 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1720 "", "", "", "", "", bonus_size, "bonus", 1721 ZDB_OT_NAME(doi.doi_bonus_type)); 1722 } 1723 1724 if (verbosity >= 4) { 1725 (void) printf("\tdnode flags: %s%s%s\n", 1726 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1727 "USED_BYTES " : "", 1728 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1729 "USERUSED_ACCOUNTED " : "", 1730 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1731 "SPILL_BLKPTR" : ""); 1732 (void) printf("\tdnode maxblkid: %llu\n", 1733 (longlong_t)dn->dn_phys->dn_maxblkid); 1734 1735 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1736 bonus, bsize); 1737 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1738 *print_header = 1; 1739 } 1740 1741 if (verbosity >= 5) 1742 dump_indirect(dn); 1743 1744 if (verbosity >= 5) { 1745 /* 1746 * Report the list of segments that comprise the object. 1747 */ 1748 uint64_t start = 0; 1749 uint64_t end; 1750 uint64_t blkfill = 1; 1751 int minlvl = 1; 1752 1753 if (dn->dn_type == DMU_OT_DNODE) { 1754 minlvl = 0; 1755 blkfill = DNODES_PER_BLOCK; 1756 } 1757 1758 for (;;) { 1759 char segsize[32]; 1760 error = dnode_next_offset(dn, 1761 0, &start, minlvl, blkfill, 0); 1762 if (error) 1763 break; 1764 end = start; 1765 error = dnode_next_offset(dn, 1766 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1767 zdb_nicenum(end - start, segsize); 1768 (void) printf("\t\tsegment [%016llx, %016llx)" 1769 " size %5s\n", (u_longlong_t)start, 1770 (u_longlong_t)end, segsize); 1771 if (error) 1772 break; 1773 start = end; 1774 } 1775 } 1776 1777 if (db != NULL) 1778 dmu_buf_rele(db, FTAG); 1779 } 1780 1781 static char *objset_types[DMU_OST_NUMTYPES] = { 1782 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1783 1784 static void 1785 dump_dir(objset_t *os) 1786 { 1787 dmu_objset_stats_t dds; 1788 uint64_t object, object_count; 1789 uint64_t refdbytes, usedobjs, scratch; 1790 char numbuf[32]; 1791 char blkbuf[BP_SPRINTF_LEN + 20]; 1792 char osname[MAXNAMELEN]; 1793 char *type = "UNKNOWN"; 1794 int verbosity = dump_opt['d']; 1795 int print_header = 1; 1796 int i, error; 1797 1798 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1799 dmu_objset_fast_stat(os, &dds); 1800 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1801 1802 if (dds.dds_type < DMU_OST_NUMTYPES) 1803 type = objset_types[dds.dds_type]; 1804 1805 if (dds.dds_type == DMU_OST_META) { 1806 dds.dds_creation_txg = TXG_INITIAL; 1807 usedobjs = BP_GET_FILL(os->os_rootbp); 1808 refdbytes = os->os_spa->spa_dsl_pool-> 1809 dp_mos_dir->dd_phys->dd_used_bytes; 1810 } else { 1811 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1812 } 1813 1814 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 1815 1816 zdb_nicenum(refdbytes, numbuf); 1817 1818 if (verbosity >= 4) { 1819 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1820 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1821 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1822 } else { 1823 blkbuf[0] = '\0'; 1824 } 1825 1826 dmu_objset_name(os, osname); 1827 1828 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1829 "%s, %llu objects%s\n", 1830 osname, type, (u_longlong_t)dmu_objset_id(os), 1831 (u_longlong_t)dds.dds_creation_txg, 1832 numbuf, (u_longlong_t)usedobjs, blkbuf); 1833 1834 if (zopt_objects != 0) { 1835 for (i = 0; i < zopt_objects; i++) 1836 dump_object(os, zopt_object[i], verbosity, 1837 &print_header); 1838 (void) printf("\n"); 1839 return; 1840 } 1841 1842 if (dump_opt['i'] != 0 || verbosity >= 2) 1843 dump_intent_log(dmu_objset_zil(os)); 1844 1845 if (dmu_objset_ds(os) != NULL) 1846 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1847 1848 if (verbosity < 2) 1849 return; 1850 1851 if (BP_IS_HOLE(os->os_rootbp)) 1852 return; 1853 1854 dump_object(os, 0, verbosity, &print_header); 1855 object_count = 0; 1856 if (DMU_USERUSED_DNODE(os) != NULL && 1857 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1858 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1859 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1860 } 1861 1862 object = 0; 1863 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1864 dump_object(os, object, verbosity, &print_header); 1865 object_count++; 1866 } 1867 1868 ASSERT3U(object_count, ==, usedobjs); 1869 1870 (void) printf("\n"); 1871 1872 if (error != ESRCH) { 1873 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1874 abort(); 1875 } 1876 } 1877 1878 static void 1879 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1880 { 1881 time_t timestamp = ub->ub_timestamp; 1882 1883 (void) printf(header ? header : ""); 1884 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1885 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1886 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1887 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1888 (void) printf("\ttimestamp = %llu UTC = %s", 1889 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1890 if (dump_opt['u'] >= 3) { 1891 char blkbuf[BP_SPRINTF_LEN]; 1892 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1893 (void) printf("\trootbp = %s\n", blkbuf); 1894 } 1895 (void) printf(footer ? footer : ""); 1896 } 1897 1898 static void 1899 dump_config(spa_t *spa) 1900 { 1901 dmu_buf_t *db; 1902 size_t nvsize = 0; 1903 int error = 0; 1904 1905 1906 error = dmu_bonus_hold(spa->spa_meta_objset, 1907 spa->spa_config_object, FTAG, &db); 1908 1909 if (error == 0) { 1910 nvsize = *(uint64_t *)db->db_data; 1911 dmu_buf_rele(db, FTAG); 1912 1913 (void) printf("\nMOS Configuration:\n"); 1914 dump_packed_nvlist(spa->spa_meta_objset, 1915 spa->spa_config_object, (void *)&nvsize, 1); 1916 } else { 1917 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1918 (u_longlong_t)spa->spa_config_object, error); 1919 } 1920 } 1921 1922 static void 1923 dump_cachefile(const char *cachefile) 1924 { 1925 int fd; 1926 struct stat64 statbuf; 1927 char *buf; 1928 nvlist_t *config; 1929 1930 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1931 (void) printf("cannot open '%s': %s\n", cachefile, 1932 strerror(errno)); 1933 exit(1); 1934 } 1935 1936 if (fstat64(fd, &statbuf) != 0) { 1937 (void) printf("failed to stat '%s': %s\n", cachefile, 1938 strerror(errno)); 1939 exit(1); 1940 } 1941 1942 if ((buf = malloc(statbuf.st_size)) == NULL) { 1943 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1944 (u_longlong_t)statbuf.st_size); 1945 exit(1); 1946 } 1947 1948 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1949 (void) fprintf(stderr, "failed to read %llu bytes\n", 1950 (u_longlong_t)statbuf.st_size); 1951 exit(1); 1952 } 1953 1954 (void) close(fd); 1955 1956 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1957 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1958 exit(1); 1959 } 1960 1961 free(buf); 1962 1963 dump_nvlist(config, 0); 1964 1965 nvlist_free(config); 1966 } 1967 1968 #define ZDB_MAX_UB_HEADER_SIZE 32 1969 1970 static void 1971 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1972 { 1973 vdev_t vd; 1974 vdev_t *vdp = &vd; 1975 char header[ZDB_MAX_UB_HEADER_SIZE]; 1976 1977 vd.vdev_ashift = ashift; 1978 vdp->vdev_top = vdp; 1979 1980 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1981 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1982 uberblock_t *ub = (void *)((char *)lbl + uoff); 1983 1984 if (uberblock_verify(ub)) 1985 continue; 1986 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1987 "Uberblock[%d]\n", i); 1988 dump_uberblock(ub, header, ""); 1989 } 1990 } 1991 1992 static void 1993 dump_label(const char *dev) 1994 { 1995 int fd; 1996 vdev_label_t label; 1997 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 1998 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1999 struct stat64 statbuf; 2000 uint64_t psize, ashift; 2001 int len = strlen(dev) + 1; 2002 2003 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 2004 len++; 2005 path = malloc(len); 2006 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 2007 } else { 2008 path = strdup(dev); 2009 } 2010 2011 if ((fd = open64(path, O_RDONLY)) < 0) { 2012 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2013 free(path); 2014 exit(1); 2015 } 2016 2017 if (fstat64(fd, &statbuf) != 0) { 2018 (void) printf("failed to stat '%s': %s\n", path, 2019 strerror(errno)); 2020 free(path); 2021 (void) close(fd); 2022 exit(1); 2023 } 2024 2025 if (S_ISBLK(statbuf.st_mode)) { 2026 (void) printf("cannot use '%s': character device required\n", 2027 path); 2028 free(path); 2029 (void) close(fd); 2030 exit(1); 2031 } 2032 2033 psize = statbuf.st_size; 2034 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2035 2036 for (int l = 0; l < VDEV_LABELS; l++) { 2037 nvlist_t *config = NULL; 2038 2039 (void) printf("--------------------------------------------\n"); 2040 (void) printf("LABEL %d\n", l); 2041 (void) printf("--------------------------------------------\n"); 2042 2043 if (pread64(fd, &label, sizeof (label), 2044 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2045 (void) printf("failed to read label %d\n", l); 2046 continue; 2047 } 2048 2049 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2050 (void) printf("failed to unpack label %d\n", l); 2051 ashift = SPA_MINBLOCKSHIFT; 2052 } else { 2053 nvlist_t *vdev_tree = NULL; 2054 2055 dump_nvlist(config, 4); 2056 if ((nvlist_lookup_nvlist(config, 2057 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2058 (nvlist_lookup_uint64(vdev_tree, 2059 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2060 ashift = SPA_MINBLOCKSHIFT; 2061 nvlist_free(config); 2062 } 2063 if (dump_opt['u']) 2064 dump_label_uberblocks(&label, ashift); 2065 } 2066 2067 free(path); 2068 (void) close(fd); 2069 } 2070 2071 /*ARGSUSED*/ 2072 static int 2073 dump_one_dir(const char *dsname, void *arg) 2074 { 2075 int error; 2076 objset_t *os; 2077 2078 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2079 if (error) { 2080 (void) printf("Could not open %s, error %d\n", dsname, error); 2081 return (0); 2082 } 2083 dump_dir(os); 2084 dmu_objset_disown(os, FTAG); 2085 fuid_table_destroy(); 2086 sa_loaded = B_FALSE; 2087 return (0); 2088 } 2089 2090 /* 2091 * Block statistics. 2092 */ 2093 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2094 typedef struct zdb_blkstats { 2095 uint64_t zb_asize; 2096 uint64_t zb_lsize; 2097 uint64_t zb_psize; 2098 uint64_t zb_count; 2099 uint64_t zb_gangs; 2100 uint64_t zb_ditto_samevdev; 2101 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2102 } zdb_blkstats_t; 2103 2104 /* 2105 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2106 */ 2107 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2108 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2109 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2110 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2111 2112 static char *zdb_ot_extname[] = { 2113 "deferred free", 2114 "dedup ditto", 2115 "other", 2116 "Total", 2117 }; 2118 2119 #define ZB_TOTAL DN_MAX_LEVELS 2120 2121 typedef struct zdb_cb { 2122 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2123 uint64_t zcb_dedup_asize; 2124 uint64_t zcb_dedup_blocks; 2125 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2126 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2127 [BPE_PAYLOAD_SIZE]; 2128 uint64_t zcb_start; 2129 uint64_t zcb_lastprint; 2130 uint64_t zcb_totalasize; 2131 uint64_t zcb_errors[256]; 2132 int zcb_readfails; 2133 int zcb_haderrors; 2134 spa_t *zcb_spa; 2135 } zdb_cb_t; 2136 2137 static void 2138 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2139 dmu_object_type_t type) 2140 { 2141 uint64_t refcnt = 0; 2142 2143 ASSERT(type < ZDB_OT_TOTAL); 2144 2145 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2146 return; 2147 2148 for (int i = 0; i < 4; i++) { 2149 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2150 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2151 int equal; 2152 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2153 2154 zb->zb_asize += BP_GET_ASIZE(bp); 2155 zb->zb_lsize += BP_GET_LSIZE(bp); 2156 zb->zb_psize += BP_GET_PSIZE(bp); 2157 zb->zb_count++; 2158 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2159 2160 zb->zb_gangs += BP_COUNT_GANG(bp); 2161 2162 switch (BP_GET_NDVAS(bp)) { 2163 case 2: 2164 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2165 DVA_GET_VDEV(&bp->blk_dva[1])) 2166 zb->zb_ditto_samevdev++; 2167 break; 2168 case 3: 2169 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2170 DVA_GET_VDEV(&bp->blk_dva[1])) + 2171 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2172 DVA_GET_VDEV(&bp->blk_dva[2])) + 2173 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2174 DVA_GET_VDEV(&bp->blk_dva[2])); 2175 if (equal != 0) 2176 zb->zb_ditto_samevdev++; 2177 break; 2178 } 2179 2180 } 2181 2182 if (BP_IS_EMBEDDED(bp)) { 2183 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2184 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2185 [BPE_GET_PSIZE(bp)]++; 2186 return; 2187 } 2188 2189 if (dump_opt['L']) 2190 return; 2191 2192 if (BP_GET_DEDUP(bp)) { 2193 ddt_t *ddt; 2194 ddt_entry_t *dde; 2195 2196 ddt = ddt_select(zcb->zcb_spa, bp); 2197 ddt_enter(ddt); 2198 dde = ddt_lookup(ddt, bp, B_FALSE); 2199 2200 if (dde == NULL) { 2201 refcnt = 0; 2202 } else { 2203 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2204 ddt_phys_decref(ddp); 2205 refcnt = ddp->ddp_refcnt; 2206 if (ddt_phys_total_refcnt(dde) == 0) 2207 ddt_remove(ddt, dde); 2208 } 2209 ddt_exit(ddt); 2210 } 2211 2212 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2213 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2214 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2215 } 2216 2217 static void 2218 zdb_blkptr_done(zio_t *zio) 2219 { 2220 spa_t *spa = zio->io_spa; 2221 blkptr_t *bp = zio->io_bp; 2222 int ioerr = zio->io_error; 2223 zdb_cb_t *zcb = zio->io_private; 2224 zbookmark_phys_t *zb = &zio->io_bookmark; 2225 2226 zio_data_buf_free(zio->io_data, zio->io_size); 2227 2228 mutex_enter(&spa->spa_scrub_lock); 2229 spa->spa_scrub_inflight--; 2230 cv_broadcast(&spa->spa_scrub_io_cv); 2231 2232 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2233 char blkbuf[BP_SPRINTF_LEN]; 2234 2235 zcb->zcb_haderrors = 1; 2236 zcb->zcb_errors[ioerr]++; 2237 2238 if (dump_opt['b'] >= 2) 2239 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2240 else 2241 blkbuf[0] = '\0'; 2242 2243 (void) printf("zdb_blkptr_cb: " 2244 "Got error %d reading " 2245 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2246 ioerr, 2247 (u_longlong_t)zb->zb_objset, 2248 (u_longlong_t)zb->zb_object, 2249 (u_longlong_t)zb->zb_level, 2250 (u_longlong_t)zb->zb_blkid, 2251 blkbuf); 2252 } 2253 mutex_exit(&spa->spa_scrub_lock); 2254 } 2255 2256 static int 2257 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2258 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2259 { 2260 zdb_cb_t *zcb = arg; 2261 dmu_object_type_t type; 2262 boolean_t is_metadata; 2263 2264 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2265 char blkbuf[BP_SPRINTF_LEN]; 2266 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2267 (void) printf("objset %llu object %llu " 2268 "level %lld offset 0x%llx %s\n", 2269 (u_longlong_t)zb->zb_objset, 2270 (u_longlong_t)zb->zb_object, 2271 (longlong_t)zb->zb_level, 2272 (u_longlong_t)blkid2offset(dnp, bp, zb), 2273 blkbuf); 2274 } 2275 2276 if (BP_IS_HOLE(bp)) 2277 return (0); 2278 2279 type = BP_GET_TYPE(bp); 2280 2281 zdb_count_block(zcb, zilog, bp, 2282 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2283 2284 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2285 2286 if (!BP_IS_EMBEDDED(bp) && 2287 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2288 size_t size = BP_GET_PSIZE(bp); 2289 void *data = zio_data_buf_alloc(size); 2290 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2291 2292 /* If it's an intent log block, failure is expected. */ 2293 if (zb->zb_level == ZB_ZIL_LEVEL) 2294 flags |= ZIO_FLAG_SPECULATIVE; 2295 2296 mutex_enter(&spa->spa_scrub_lock); 2297 while (spa->spa_scrub_inflight > max_inflight) 2298 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2299 spa->spa_scrub_inflight++; 2300 mutex_exit(&spa->spa_scrub_lock); 2301 2302 zio_nowait(zio_read(NULL, spa, bp, data, size, 2303 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2304 } 2305 2306 zcb->zcb_readfails = 0; 2307 2308 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2309 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2310 uint64_t now = gethrtime(); 2311 char buf[10]; 2312 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2313 int kb_per_sec = 2314 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2315 int sec_remaining = 2316 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2317 2318 zfs_nicenum(bytes, buf, sizeof (buf)); 2319 (void) fprintf(stderr, 2320 "\r%5s completed (%4dMB/s) " 2321 "estimated time remaining: %uhr %02umin %02usec ", 2322 buf, kb_per_sec / 1024, 2323 sec_remaining / 60 / 60, 2324 sec_remaining / 60 % 60, 2325 sec_remaining % 60); 2326 2327 zcb->zcb_lastprint = now; 2328 } 2329 2330 return (0); 2331 } 2332 2333 static void 2334 zdb_leak(void *arg, uint64_t start, uint64_t size) 2335 { 2336 vdev_t *vd = arg; 2337 2338 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2339 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2340 } 2341 2342 static metaslab_ops_t zdb_metaslab_ops = { 2343 NULL, /* alloc */ 2344 NULL /* fragmented */ 2345 }; 2346 2347 static void 2348 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2349 { 2350 ddt_bookmark_t ddb = { 0 }; 2351 ddt_entry_t dde; 2352 int error; 2353 2354 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2355 blkptr_t blk; 2356 ddt_phys_t *ddp = dde.dde_phys; 2357 2358 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2359 return; 2360 2361 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2362 2363 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2364 if (ddp->ddp_phys_birth == 0) 2365 continue; 2366 ddt_bp_create(ddb.ddb_checksum, 2367 &dde.dde_key, ddp, &blk); 2368 if (p == DDT_PHYS_DITTO) { 2369 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2370 } else { 2371 zcb->zcb_dedup_asize += 2372 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2373 zcb->zcb_dedup_blocks++; 2374 } 2375 } 2376 if (!dump_opt['L']) { 2377 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2378 ddt_enter(ddt); 2379 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2380 ddt_exit(ddt); 2381 } 2382 } 2383 2384 ASSERT(error == ENOENT); 2385 } 2386 2387 static void 2388 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2389 { 2390 zcb->zcb_spa = spa; 2391 2392 if (!dump_opt['L']) { 2393 vdev_t *rvd = spa->spa_root_vdev; 2394 for (int c = 0; c < rvd->vdev_children; c++) { 2395 vdev_t *vd = rvd->vdev_child[c]; 2396 for (int m = 0; m < vd->vdev_ms_count; m++) { 2397 metaslab_t *msp = vd->vdev_ms[m]; 2398 mutex_enter(&msp->ms_lock); 2399 metaslab_unload(msp); 2400 2401 /* 2402 * For leak detection, we overload the metaslab 2403 * ms_tree to contain allocated segments 2404 * instead of free segments. As a result, 2405 * we can't use the normal metaslab_load/unload 2406 * interfaces. 2407 */ 2408 if (msp->ms_sm != NULL) { 2409 msp->ms_ops = &zdb_metaslab_ops; 2410 VERIFY0(space_map_load(msp->ms_sm, 2411 msp->ms_tree, SM_ALLOC)); 2412 msp->ms_loaded = B_TRUE; 2413 } 2414 mutex_exit(&msp->ms_lock); 2415 } 2416 } 2417 } 2418 2419 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2420 2421 zdb_ddt_leak_init(spa, zcb); 2422 2423 spa_config_exit(spa, SCL_CONFIG, FTAG); 2424 } 2425 2426 static void 2427 zdb_leak_fini(spa_t *spa) 2428 { 2429 if (!dump_opt['L']) { 2430 vdev_t *rvd = spa->spa_root_vdev; 2431 for (int c = 0; c < rvd->vdev_children; c++) { 2432 vdev_t *vd = rvd->vdev_child[c]; 2433 for (int m = 0; m < vd->vdev_ms_count; m++) { 2434 metaslab_t *msp = vd->vdev_ms[m]; 2435 mutex_enter(&msp->ms_lock); 2436 2437 /* 2438 * The ms_tree has been overloaded to 2439 * contain allocated segments. Now that we 2440 * finished traversing all blocks, any 2441 * block that remains in the ms_tree 2442 * represents an allocated block that we 2443 * did not claim during the traversal. 2444 * Claimed blocks would have been removed 2445 * from the ms_tree. 2446 */ 2447 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2448 msp->ms_loaded = B_FALSE; 2449 2450 mutex_exit(&msp->ms_lock); 2451 } 2452 } 2453 } 2454 } 2455 2456 /* ARGSUSED */ 2457 static int 2458 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2459 { 2460 zdb_cb_t *zcb = arg; 2461 2462 if (dump_opt['b'] >= 5) { 2463 char blkbuf[BP_SPRINTF_LEN]; 2464 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2465 (void) printf("[%s] %s\n", 2466 "deferred free", blkbuf); 2467 } 2468 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2469 return (0); 2470 } 2471 2472 static int 2473 dump_block_stats(spa_t *spa) 2474 { 2475 zdb_cb_t zcb = { 0 }; 2476 zdb_blkstats_t *zb, *tzb; 2477 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2478 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2479 boolean_t leaks = B_FALSE; 2480 2481 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2482 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2483 (dump_opt['c'] == 1) ? "metadata " : "", 2484 dump_opt['c'] ? "checksums " : "", 2485 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2486 !dump_opt['L'] ? "nothing leaked " : ""); 2487 2488 /* 2489 * Load all space maps as SM_ALLOC maps, then traverse the pool 2490 * claiming each block we discover. If the pool is perfectly 2491 * consistent, the space maps will be empty when we're done. 2492 * Anything left over is a leak; any block we can't claim (because 2493 * it's not part of any space map) is a double allocation, 2494 * reference to a freed block, or an unclaimed log block. 2495 */ 2496 zdb_leak_init(spa, &zcb); 2497 2498 /* 2499 * If there's a deferred-free bplist, process that first. 2500 */ 2501 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2502 count_block_cb, &zcb, NULL); 2503 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2504 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2505 count_block_cb, &zcb, NULL); 2506 } 2507 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2508 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2509 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2510 &zcb, NULL)); 2511 } 2512 2513 if (dump_opt['c'] > 1) 2514 flags |= TRAVERSE_PREFETCH_DATA; 2515 2516 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2517 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2518 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2519 2520 /* 2521 * If we've traversed the data blocks then we need to wait for those 2522 * I/Os to complete. We leverage "The Godfather" zio to wait on 2523 * all async I/Os to complete. 2524 */ 2525 if (dump_opt['c']) { 2526 (void) zio_wait(spa->spa_async_zio_root); 2527 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2528 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2529 ZIO_FLAG_GODFATHER); 2530 } 2531 2532 if (zcb.zcb_haderrors) { 2533 (void) printf("\nError counts:\n\n"); 2534 (void) printf("\t%5s %s\n", "errno", "count"); 2535 for (int e = 0; e < 256; e++) { 2536 if (zcb.zcb_errors[e] != 0) { 2537 (void) printf("\t%5d %llu\n", 2538 e, (u_longlong_t)zcb.zcb_errors[e]); 2539 } 2540 } 2541 } 2542 2543 /* 2544 * Report any leaked segments. 2545 */ 2546 zdb_leak_fini(spa); 2547 2548 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2549 2550 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2551 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2552 2553 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2554 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2555 2556 if (total_found == total_alloc) { 2557 if (!dump_opt['L']) 2558 (void) printf("\n\tNo leaks (block sum matches space" 2559 " maps exactly)\n"); 2560 } else { 2561 (void) printf("block traversal size %llu != alloc %llu " 2562 "(%s %lld)\n", 2563 (u_longlong_t)total_found, 2564 (u_longlong_t)total_alloc, 2565 (dump_opt['L']) ? "unreachable" : "leaked", 2566 (longlong_t)(total_alloc - total_found)); 2567 leaks = B_TRUE; 2568 } 2569 2570 if (tzb->zb_count == 0) 2571 return (2); 2572 2573 (void) printf("\n"); 2574 (void) printf("\tbp count: %10llu\n", 2575 (u_longlong_t)tzb->zb_count); 2576 (void) printf("\tganged count: %10llu\n", 2577 (longlong_t)tzb->zb_gangs); 2578 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2579 (u_longlong_t)tzb->zb_lsize, 2580 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2581 (void) printf("\tbp physical: %10llu avg:" 2582 " %6llu compression: %6.2f\n", 2583 (u_longlong_t)tzb->zb_psize, 2584 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2585 (double)tzb->zb_lsize / tzb->zb_psize); 2586 (void) printf("\tbp allocated: %10llu avg:" 2587 " %6llu compression: %6.2f\n", 2588 (u_longlong_t)tzb->zb_asize, 2589 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2590 (double)tzb->zb_lsize / tzb->zb_asize); 2591 (void) printf("\tbp deduped: %10llu ref>1:" 2592 " %6llu deduplication: %6.2f\n", 2593 (u_longlong_t)zcb.zcb_dedup_asize, 2594 (u_longlong_t)zcb.zcb_dedup_blocks, 2595 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2596 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2597 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2598 2599 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2600 if (zcb.zcb_embedded_blocks[i] == 0) 2601 continue; 2602 (void) printf("\n"); 2603 (void) printf("\tadditional, non-pointer bps of type %u: " 2604 "%10llu\n", 2605 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2606 2607 if (dump_opt['b'] >= 3) { 2608 (void) printf("\t number of (compressed) bytes: " 2609 "number of bps\n"); 2610 dump_histogram(zcb.zcb_embedded_histogram[i], 2611 sizeof (zcb.zcb_embedded_histogram[i]) / 2612 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2613 } 2614 } 2615 2616 if (tzb->zb_ditto_samevdev != 0) { 2617 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2618 (longlong_t)tzb->zb_ditto_samevdev); 2619 } 2620 2621 if (dump_opt['b'] >= 2) { 2622 int l, t, level; 2623 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2624 "\t avg\t comp\t%%Total\tType\n"); 2625 2626 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2627 char csize[32], lsize[32], psize[32], asize[32]; 2628 char avg[32], gang[32]; 2629 char *typename; 2630 2631 if (t < DMU_OT_NUMTYPES) 2632 typename = dmu_ot[t].ot_name; 2633 else 2634 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2635 2636 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2637 (void) printf("%6s\t%5s\t%5s\t%5s" 2638 "\t%5s\t%5s\t%6s\t%s\n", 2639 "-", 2640 "-", 2641 "-", 2642 "-", 2643 "-", 2644 "-", 2645 "-", 2646 typename); 2647 continue; 2648 } 2649 2650 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2651 level = (l == -1 ? ZB_TOTAL : l); 2652 zb = &zcb.zcb_type[level][t]; 2653 2654 if (zb->zb_asize == 0) 2655 continue; 2656 2657 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2658 continue; 2659 2660 if (level == 0 && zb->zb_asize == 2661 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2662 continue; 2663 2664 zdb_nicenum(zb->zb_count, csize); 2665 zdb_nicenum(zb->zb_lsize, lsize); 2666 zdb_nicenum(zb->zb_psize, psize); 2667 zdb_nicenum(zb->zb_asize, asize); 2668 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2669 zdb_nicenum(zb->zb_gangs, gang); 2670 2671 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2672 "\t%5.2f\t%6.2f\t", 2673 csize, lsize, psize, asize, avg, 2674 (double)zb->zb_lsize / zb->zb_psize, 2675 100.0 * zb->zb_asize / tzb->zb_asize); 2676 2677 if (level == ZB_TOTAL) 2678 (void) printf("%s\n", typename); 2679 else 2680 (void) printf(" L%d %s\n", 2681 level, typename); 2682 2683 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2684 (void) printf("\t number of ganged " 2685 "blocks: %s\n", gang); 2686 } 2687 2688 if (dump_opt['b'] >= 4) { 2689 (void) printf("psize " 2690 "(in 512-byte sectors): " 2691 "number of blocks\n"); 2692 dump_histogram(zb->zb_psize_histogram, 2693 PSIZE_HISTO_SIZE, 0); 2694 } 2695 } 2696 } 2697 } 2698 2699 (void) printf("\n"); 2700 2701 if (leaks) 2702 return (2); 2703 2704 if (zcb.zcb_haderrors) 2705 return (3); 2706 2707 return (0); 2708 } 2709 2710 typedef struct zdb_ddt_entry { 2711 ddt_key_t zdde_key; 2712 uint64_t zdde_ref_blocks; 2713 uint64_t zdde_ref_lsize; 2714 uint64_t zdde_ref_psize; 2715 uint64_t zdde_ref_dsize; 2716 avl_node_t zdde_node; 2717 } zdb_ddt_entry_t; 2718 2719 /* ARGSUSED */ 2720 static int 2721 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2722 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2723 { 2724 avl_tree_t *t = arg; 2725 avl_index_t where; 2726 zdb_ddt_entry_t *zdde, zdde_search; 2727 2728 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 2729 return (0); 2730 2731 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2732 (void) printf("traversing objset %llu, %llu objects, " 2733 "%lu blocks so far\n", 2734 (u_longlong_t)zb->zb_objset, 2735 (u_longlong_t)BP_GET_FILL(bp), 2736 avl_numnodes(t)); 2737 } 2738 2739 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2740 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2741 return (0); 2742 2743 ddt_key_fill(&zdde_search.zdde_key, bp); 2744 2745 zdde = avl_find(t, &zdde_search, &where); 2746 2747 if (zdde == NULL) { 2748 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2749 zdde->zdde_key = zdde_search.zdde_key; 2750 avl_insert(t, zdde, where); 2751 } 2752 2753 zdde->zdde_ref_blocks += 1; 2754 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2755 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2756 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2757 2758 return (0); 2759 } 2760 2761 static void 2762 dump_simulated_ddt(spa_t *spa) 2763 { 2764 avl_tree_t t; 2765 void *cookie = NULL; 2766 zdb_ddt_entry_t *zdde; 2767 ddt_histogram_t ddh_total = { 0 }; 2768 ddt_stat_t dds_total = { 0 }; 2769 2770 avl_create(&t, ddt_entry_compare, 2771 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2772 2773 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2774 2775 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2776 zdb_ddt_add_cb, &t); 2777 2778 spa_config_exit(spa, SCL_CONFIG, FTAG); 2779 2780 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2781 ddt_stat_t dds; 2782 uint64_t refcnt = zdde->zdde_ref_blocks; 2783 ASSERT(refcnt != 0); 2784 2785 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2786 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2787 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2788 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2789 2790 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2791 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2792 dds.dds_ref_psize = zdde->zdde_ref_psize; 2793 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2794 2795 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2796 &dds, 0); 2797 2798 umem_free(zdde, sizeof (*zdde)); 2799 } 2800 2801 avl_destroy(&t); 2802 2803 ddt_histogram_stat(&dds_total, &ddh_total); 2804 2805 (void) printf("Simulated DDT histogram:\n"); 2806 2807 zpool_dump_ddt(&dds_total, &ddh_total); 2808 2809 dump_dedup_ratio(&dds_total); 2810 } 2811 2812 static void 2813 dump_zpool(spa_t *spa) 2814 { 2815 dsl_pool_t *dp = spa_get_dsl(spa); 2816 int rc = 0; 2817 2818 if (dump_opt['S']) { 2819 dump_simulated_ddt(spa); 2820 return; 2821 } 2822 2823 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2824 (void) printf("\nCached configuration:\n"); 2825 dump_nvlist(spa->spa_config, 8); 2826 } 2827 2828 if (dump_opt['C']) 2829 dump_config(spa); 2830 2831 if (dump_opt['u']) 2832 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2833 2834 if (dump_opt['D']) 2835 dump_all_ddts(spa); 2836 2837 if (dump_opt['d'] > 2 || dump_opt['m']) 2838 dump_metaslabs(spa); 2839 2840 if (dump_opt['d'] || dump_opt['i']) { 2841 dump_dir(dp->dp_meta_objset); 2842 if (dump_opt['d'] >= 3) { 2843 dump_bpobj(&spa->spa_deferred_bpobj, 2844 "Deferred frees", 0); 2845 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2846 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2847 "Pool snapshot frees", 0); 2848 } 2849 2850 if (spa_feature_is_active(spa, 2851 SPA_FEATURE_ASYNC_DESTROY)) { 2852 dump_bptree(spa->spa_meta_objset, 2853 spa->spa_dsl_pool->dp_bptree_obj, 2854 "Pool dataset frees"); 2855 } 2856 dump_dtl(spa->spa_root_vdev, 0); 2857 } 2858 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2859 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2860 } 2861 if (dump_opt['b'] || dump_opt['c']) 2862 rc = dump_block_stats(spa); 2863 2864 if (rc == 0) 2865 rc = verify_spacemap_refcounts(spa); 2866 2867 if (dump_opt['s']) 2868 show_pool_stats(spa); 2869 2870 if (dump_opt['h']) 2871 dump_history(spa); 2872 2873 if (rc != 0) 2874 exit(rc); 2875 } 2876 2877 #define ZDB_FLAG_CHECKSUM 0x0001 2878 #define ZDB_FLAG_DECOMPRESS 0x0002 2879 #define ZDB_FLAG_BSWAP 0x0004 2880 #define ZDB_FLAG_GBH 0x0008 2881 #define ZDB_FLAG_INDIRECT 0x0010 2882 #define ZDB_FLAG_PHYS 0x0020 2883 #define ZDB_FLAG_RAW 0x0040 2884 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 2885 2886 int flagbits[256]; 2887 2888 static void 2889 zdb_print_blkptr(blkptr_t *bp, int flags) 2890 { 2891 char blkbuf[BP_SPRINTF_LEN]; 2892 2893 if (flags & ZDB_FLAG_BSWAP) 2894 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2895 2896 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2897 (void) printf("%s\n", blkbuf); 2898 } 2899 2900 static void 2901 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2902 { 2903 int i; 2904 2905 for (i = 0; i < nbps; i++) 2906 zdb_print_blkptr(&bp[i], flags); 2907 } 2908 2909 static void 2910 zdb_dump_gbh(void *buf, int flags) 2911 { 2912 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2913 } 2914 2915 static void 2916 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2917 { 2918 if (flags & ZDB_FLAG_BSWAP) 2919 byteswap_uint64_array(buf, size); 2920 (void) write(1, buf, size); 2921 } 2922 2923 static void 2924 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2925 { 2926 uint64_t *d = (uint64_t *)buf; 2927 int nwords = size / sizeof (uint64_t); 2928 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2929 int i, j; 2930 char *hdr, *c; 2931 2932 2933 if (do_bswap) 2934 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2935 else 2936 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2937 2938 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2939 2940 for (i = 0; i < nwords; i += 2) { 2941 (void) printf("%06llx: %016llx %016llx ", 2942 (u_longlong_t)(i * sizeof (uint64_t)), 2943 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2944 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2945 2946 c = (char *)&d[i]; 2947 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2948 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2949 (void) printf("\n"); 2950 } 2951 } 2952 2953 /* 2954 * There are two acceptable formats: 2955 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2956 * child[.child]* - For example: 0.1.1 2957 * 2958 * The second form can be used to specify arbitrary vdevs anywhere 2959 * in the heirarchy. For example, in a pool with a mirror of 2960 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2961 */ 2962 static vdev_t * 2963 zdb_vdev_lookup(vdev_t *vdev, char *path) 2964 { 2965 char *s, *p, *q; 2966 int i; 2967 2968 if (vdev == NULL) 2969 return (NULL); 2970 2971 /* First, assume the x.x.x.x format */ 2972 i = (int)strtoul(path, &s, 10); 2973 if (s == path || (s && *s != '.' && *s != '\0')) 2974 goto name; 2975 if (i < 0 || i >= vdev->vdev_children) 2976 return (NULL); 2977 2978 vdev = vdev->vdev_child[i]; 2979 if (*s == '\0') 2980 return (vdev); 2981 return (zdb_vdev_lookup(vdev, s+1)); 2982 2983 name: 2984 for (i = 0; i < vdev->vdev_children; i++) { 2985 vdev_t *vc = vdev->vdev_child[i]; 2986 2987 if (vc->vdev_path == NULL) { 2988 vc = zdb_vdev_lookup(vc, path); 2989 if (vc == NULL) 2990 continue; 2991 else 2992 return (vc); 2993 } 2994 2995 p = strrchr(vc->vdev_path, '/'); 2996 p = p ? p + 1 : vc->vdev_path; 2997 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2998 2999 if (strcmp(vc->vdev_path, path) == 0) 3000 return (vc); 3001 if (strcmp(p, path) == 0) 3002 return (vc); 3003 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3004 return (vc); 3005 } 3006 3007 return (NULL); 3008 } 3009 3010 /* 3011 * Read a block from a pool and print it out. The syntax of the 3012 * block descriptor is: 3013 * 3014 * pool:vdev_specifier:offset:size[:flags] 3015 * 3016 * pool - The name of the pool you wish to read from 3017 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3018 * offset - offset, in hex, in bytes 3019 * size - Amount of data to read, in hex, in bytes 3020 * flags - A string of characters specifying options 3021 * b: Decode a blkptr at given offset within block 3022 * *c: Calculate and display checksums 3023 * d: Decompress data before dumping 3024 * e: Byteswap data before dumping 3025 * g: Display data as a gang block header 3026 * i: Display as an indirect block 3027 * p: Do I/O to physical offset 3028 * r: Dump raw data to stdout 3029 * 3030 * * = not yet implemented 3031 */ 3032 static void 3033 zdb_read_block(char *thing, spa_t *spa) 3034 { 3035 blkptr_t blk, *bp = &blk; 3036 dva_t *dva = bp->blk_dva; 3037 int flags = 0; 3038 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3039 zio_t *zio; 3040 vdev_t *vd; 3041 void *pbuf, *lbuf, *buf; 3042 char *s, *p, *dup, *vdev, *flagstr; 3043 int i, error; 3044 3045 dup = strdup(thing); 3046 s = strtok(dup, ":"); 3047 vdev = s ? s : ""; 3048 s = strtok(NULL, ":"); 3049 offset = strtoull(s ? s : "", NULL, 16); 3050 s = strtok(NULL, ":"); 3051 size = strtoull(s ? s : "", NULL, 16); 3052 s = strtok(NULL, ":"); 3053 flagstr = s ? s : ""; 3054 3055 s = NULL; 3056 if (size == 0) 3057 s = "size must not be zero"; 3058 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3059 s = "size must be a multiple of sector size"; 3060 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3061 s = "offset must be a multiple of sector size"; 3062 if (s) { 3063 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3064 free(dup); 3065 return; 3066 } 3067 3068 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3069 for (i = 0; flagstr[i]; i++) { 3070 int bit = flagbits[(uchar_t)flagstr[i]]; 3071 3072 if (bit == 0) { 3073 (void) printf("***Invalid flag: %c\n", 3074 flagstr[i]); 3075 continue; 3076 } 3077 flags |= bit; 3078 3079 /* If it's not something with an argument, keep going */ 3080 if ((bit & (ZDB_FLAG_CHECKSUM | 3081 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3082 continue; 3083 3084 p = &flagstr[i + 1]; 3085 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3086 blkptr_offset = strtoull(p, &p, 16); 3087 if (*p != ':' && *p != '\0') { 3088 (void) printf("***Invalid flag arg: '%s'\n", s); 3089 free(dup); 3090 return; 3091 } 3092 } 3093 } 3094 3095 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3096 if (vd == NULL) { 3097 (void) printf("***Invalid vdev: %s\n", vdev); 3098 free(dup); 3099 return; 3100 } else { 3101 if (vd->vdev_path) 3102 (void) fprintf(stderr, "Found vdev: %s\n", 3103 vd->vdev_path); 3104 else 3105 (void) fprintf(stderr, "Found vdev type: %s\n", 3106 vd->vdev_ops->vdev_op_type); 3107 } 3108 3109 psize = size; 3110 lsize = size; 3111 3112 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3113 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3114 3115 BP_ZERO(bp); 3116 3117 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3118 DVA_SET_OFFSET(&dva[0], offset); 3119 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3120 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3121 3122 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3123 3124 BP_SET_LSIZE(bp, lsize); 3125 BP_SET_PSIZE(bp, psize); 3126 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3127 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3128 BP_SET_TYPE(bp, DMU_OT_NONE); 3129 BP_SET_LEVEL(bp, 0); 3130 BP_SET_DEDUP(bp, 0); 3131 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3132 3133 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3134 zio = zio_root(spa, NULL, NULL, 0); 3135 3136 if (vd == vd->vdev_top) { 3137 /* 3138 * Treat this as a normal block read. 3139 */ 3140 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3141 ZIO_PRIORITY_SYNC_READ, 3142 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3143 } else { 3144 /* 3145 * Treat this as a vdev child I/O. 3146 */ 3147 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3148 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3149 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3150 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3151 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3152 } 3153 3154 error = zio_wait(zio); 3155 spa_config_exit(spa, SCL_STATE, FTAG); 3156 3157 if (error) { 3158 (void) printf("Read of %s failed, error: %d\n", thing, error); 3159 goto out; 3160 } 3161 3162 if (flags & ZDB_FLAG_DECOMPRESS) { 3163 /* 3164 * We don't know how the data was compressed, so just try 3165 * every decompress function at every inflated blocksize. 3166 */ 3167 enum zio_compress c; 3168 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3169 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3170 3171 bcopy(pbuf, pbuf2, psize); 3172 3173 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3174 SPA_MAXBLOCKSIZE - psize) == 0); 3175 3176 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3177 SPA_MAXBLOCKSIZE - psize) == 0); 3178 3179 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3180 lsize -= SPA_MINBLOCKSIZE) { 3181 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3182 if (zio_decompress_data(c, pbuf, lbuf, 3183 psize, lsize) == 0 && 3184 zio_decompress_data(c, pbuf2, lbuf2, 3185 psize, lsize) == 0 && 3186 bcmp(lbuf, lbuf2, lsize) == 0) 3187 break; 3188 } 3189 if (c != ZIO_COMPRESS_FUNCTIONS) 3190 break; 3191 lsize -= SPA_MINBLOCKSIZE; 3192 } 3193 3194 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3195 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3196 3197 if (lsize <= psize) { 3198 (void) printf("Decompress of %s failed\n", thing); 3199 goto out; 3200 } 3201 buf = lbuf; 3202 size = lsize; 3203 } else { 3204 buf = pbuf; 3205 size = psize; 3206 } 3207 3208 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3209 zdb_print_blkptr((blkptr_t *)(void *) 3210 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3211 else if (flags & ZDB_FLAG_RAW) 3212 zdb_dump_block_raw(buf, size, flags); 3213 else if (flags & ZDB_FLAG_INDIRECT) 3214 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3215 flags); 3216 else if (flags & ZDB_FLAG_GBH) 3217 zdb_dump_gbh(buf, flags); 3218 else 3219 zdb_dump_block(thing, buf, size, flags); 3220 3221 out: 3222 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3223 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3224 free(dup); 3225 } 3226 3227 static boolean_t 3228 pool_match(nvlist_t *cfg, char *tgt) 3229 { 3230 uint64_t v, guid = strtoull(tgt, NULL, 0); 3231 char *s; 3232 3233 if (guid != 0) { 3234 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3235 return (v == guid); 3236 } else { 3237 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3238 return (strcmp(s, tgt) == 0); 3239 } 3240 return (B_FALSE); 3241 } 3242 3243 static char * 3244 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3245 { 3246 nvlist_t *pools; 3247 nvlist_t *match = NULL; 3248 char *name = NULL; 3249 char *sepp = NULL; 3250 char sep; 3251 int count = 0; 3252 importargs_t args = { 0 }; 3253 3254 args.paths = dirc; 3255 args.path = dirv; 3256 args.can_be_active = B_TRUE; 3257 3258 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3259 sep = *sepp; 3260 *sepp = '\0'; 3261 } 3262 3263 pools = zpool_search_import(g_zfs, &args); 3264 3265 if (pools != NULL) { 3266 nvpair_t *elem = NULL; 3267 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3268 verify(nvpair_value_nvlist(elem, configp) == 0); 3269 if (pool_match(*configp, *target)) { 3270 count++; 3271 if (match != NULL) { 3272 /* print previously found config */ 3273 if (name != NULL) { 3274 (void) printf("%s\n", name); 3275 dump_nvlist(match, 8); 3276 name = NULL; 3277 } 3278 (void) printf("%s\n", 3279 nvpair_name(elem)); 3280 dump_nvlist(*configp, 8); 3281 } else { 3282 match = *configp; 3283 name = nvpair_name(elem); 3284 } 3285 } 3286 } 3287 } 3288 if (count > 1) 3289 (void) fatal("\tMatched %d pools - use pool GUID " 3290 "instead of pool name or \n" 3291 "\tpool name part of a dataset name to select pool", count); 3292 3293 if (sepp) 3294 *sepp = sep; 3295 /* 3296 * If pool GUID was specified for pool id, replace it with pool name 3297 */ 3298 if (name && (strstr(*target, name) != *target)) { 3299 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3300 3301 *target = umem_alloc(sz, UMEM_NOFAIL); 3302 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3303 } 3304 3305 *configp = name ? match : NULL; 3306 3307 return (name); 3308 } 3309 3310 int 3311 main(int argc, char **argv) 3312 { 3313 int i, c; 3314 struct rlimit rl = { 1024, 1024 }; 3315 spa_t *spa = NULL; 3316 objset_t *os = NULL; 3317 int dump_all = 1; 3318 int verbose = 0; 3319 int error = 0; 3320 char **searchdirs = NULL; 3321 int nsearch = 0; 3322 char *target; 3323 nvlist_t *policy = NULL; 3324 uint64_t max_txg = UINT64_MAX; 3325 int rewind = ZPOOL_NEVER_REWIND; 3326 3327 (void) setrlimit(RLIMIT_NOFILE, &rl); 3328 (void) enable_extended_FILE_stdio(-1, -1); 3329 3330 dprintf_setup(&argc, argv); 3331 3332 while ((c = getopt(argc, argv, 3333 "bcdhilmM:suCDRSAFLXx:evp:t:U:P")) != -1) { 3334 switch (c) { 3335 case 'b': 3336 case 'c': 3337 case 'd': 3338 case 'h': 3339 case 'i': 3340 case 'l': 3341 case 'm': 3342 case 's': 3343 case 'u': 3344 case 'C': 3345 case 'D': 3346 case 'R': 3347 case 'S': 3348 dump_opt[c]++; 3349 dump_all = 0; 3350 break; 3351 case 'A': 3352 case 'F': 3353 case 'L': 3354 case 'X': 3355 case 'e': 3356 case 'P': 3357 dump_opt[c]++; 3358 break; 3359 case 'v': 3360 verbose++; 3361 break; 3362 case 'M': 3363 max_inflight = strtoull(optarg, NULL, 0); 3364 if (max_inflight == 0) { 3365 (void) fprintf(stderr, "maximum number " 3366 "of inflight I/Os must be greater " 3367 "than 0\n"); 3368 usage(); 3369 } 3370 break; 3371 case 'p': 3372 if (searchdirs == NULL) { 3373 searchdirs = umem_alloc(sizeof (char *), 3374 UMEM_NOFAIL); 3375 } else { 3376 char **tmp = umem_alloc((nsearch + 1) * 3377 sizeof (char *), UMEM_NOFAIL); 3378 bcopy(searchdirs, tmp, nsearch * 3379 sizeof (char *)); 3380 umem_free(searchdirs, 3381 nsearch * sizeof (char *)); 3382 searchdirs = tmp; 3383 } 3384 searchdirs[nsearch++] = optarg; 3385 break; 3386 case 'x': 3387 vn_dumpdir = optarg; 3388 break; 3389 case 't': 3390 max_txg = strtoull(optarg, NULL, 0); 3391 if (max_txg < TXG_INITIAL) { 3392 (void) fprintf(stderr, "incorrect txg " 3393 "specified: %s\n", optarg); 3394 usage(); 3395 } 3396 break; 3397 case 'U': 3398 spa_config_path = optarg; 3399 break; 3400 default: 3401 usage(); 3402 break; 3403 } 3404 } 3405 3406 if (!dump_opt['e'] && searchdirs != NULL) { 3407 (void) fprintf(stderr, "-p option requires use of -e\n"); 3408 usage(); 3409 } 3410 3411 kernel_init(FREAD); 3412 g_zfs = libzfs_init(); 3413 ASSERT(g_zfs != NULL); 3414 3415 if (dump_all) 3416 verbose = MAX(verbose, 1); 3417 3418 for (c = 0; c < 256; c++) { 3419 if (dump_all && !strchr("elAFLRSXP", c)) 3420 dump_opt[c] = 1; 3421 if (dump_opt[c]) 3422 dump_opt[c] += verbose; 3423 } 3424 3425 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3426 zfs_recover = (dump_opt['A'] > 1); 3427 3428 argc -= optind; 3429 argv += optind; 3430 3431 if (argc < 2 && dump_opt['R']) 3432 usage(); 3433 if (argc < 1) { 3434 if (!dump_opt['e'] && dump_opt['C']) { 3435 dump_cachefile(spa_config_path); 3436 return (0); 3437 } 3438 usage(); 3439 } 3440 3441 if (dump_opt['l']) { 3442 dump_label(argv[0]); 3443 return (0); 3444 } 3445 3446 if (dump_opt['X'] || dump_opt['F']) 3447 rewind = ZPOOL_DO_REWIND | 3448 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3449 3450 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3451 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3452 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3453 fatal("internal error: %s", strerror(ENOMEM)); 3454 3455 error = 0; 3456 target = argv[0]; 3457 3458 if (dump_opt['e']) { 3459 nvlist_t *cfg = NULL; 3460 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3461 3462 error = ENOENT; 3463 if (name) { 3464 if (dump_opt['C'] > 1) { 3465 (void) printf("\nConfiguration for import:\n"); 3466 dump_nvlist(cfg, 8); 3467 } 3468 if (nvlist_add_nvlist(cfg, 3469 ZPOOL_REWIND_POLICY, policy) != 0) { 3470 fatal("can't open '%s': %s", 3471 target, strerror(ENOMEM)); 3472 } 3473 if ((error = spa_import(name, cfg, NULL, 3474 ZFS_IMPORT_MISSING_LOG)) != 0) { 3475 error = spa_import(name, cfg, NULL, 3476 ZFS_IMPORT_VERBATIM); 3477 } 3478 } 3479 } 3480 3481 if (error == 0) { 3482 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3483 error = spa_open_rewind(target, &spa, FTAG, policy, 3484 NULL); 3485 if (error) { 3486 /* 3487 * If we're missing the log device then 3488 * try opening the pool after clearing the 3489 * log state. 3490 */ 3491 mutex_enter(&spa_namespace_lock); 3492 if ((spa = spa_lookup(target)) != NULL && 3493 spa->spa_log_state == SPA_LOG_MISSING) { 3494 spa->spa_log_state = SPA_LOG_CLEAR; 3495 error = 0; 3496 } 3497 mutex_exit(&spa_namespace_lock); 3498 3499 if (!error) { 3500 error = spa_open_rewind(target, &spa, 3501 FTAG, policy, NULL); 3502 } 3503 } 3504 } else { 3505 error = dmu_objset_own(target, DMU_OST_ANY, 3506 B_TRUE, FTAG, &os); 3507 } 3508 } 3509 nvlist_free(policy); 3510 3511 if (error) 3512 fatal("can't open '%s': %s", target, strerror(error)); 3513 3514 argv++; 3515 argc--; 3516 if (!dump_opt['R']) { 3517 if (argc > 0) { 3518 zopt_objects = argc; 3519 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3520 for (i = 0; i < zopt_objects; i++) { 3521 errno = 0; 3522 zopt_object[i] = strtoull(argv[i], NULL, 0); 3523 if (zopt_object[i] == 0 && errno != 0) 3524 fatal("bad number %s: %s", 3525 argv[i], strerror(errno)); 3526 } 3527 } 3528 if (os != NULL) { 3529 dump_dir(os); 3530 } else if (zopt_objects > 0 && !dump_opt['m']) { 3531 dump_dir(spa->spa_meta_objset); 3532 } else { 3533 dump_zpool(spa); 3534 } 3535 } else { 3536 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3537 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3538 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3539 flagbits['e'] = ZDB_FLAG_BSWAP; 3540 flagbits['g'] = ZDB_FLAG_GBH; 3541 flagbits['i'] = ZDB_FLAG_INDIRECT; 3542 flagbits['p'] = ZDB_FLAG_PHYS; 3543 flagbits['r'] = ZDB_FLAG_RAW; 3544 3545 for (i = 0; i < argc; i++) 3546 zdb_read_block(argv[i], spa); 3547 } 3548 3549 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3550 3551 fuid_table_destroy(); 3552 sa_loaded = B_FALSE; 3553 3554 libzfs_fini(g_zfs); 3555 kernel_fini(); 3556 3557 return (0); 3558 } 3559