1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2012, 2014 by Delphix. All rights reserved. 25 */ 26 27 #include <stdio.h> 28 #include <unistd.h> 29 #include <stdio_ext.h> 30 #include <stdlib.h> 31 #include <ctype.h> 32 #include <sys/zfs_context.h> 33 #include <sys/spa.h> 34 #include <sys/spa_impl.h> 35 #include <sys/dmu.h> 36 #include <sys/zap.h> 37 #include <sys/fs/zfs.h> 38 #include <sys/zfs_znode.h> 39 #include <sys/zfs_sa.h> 40 #include <sys/sa.h> 41 #include <sys/sa_impl.h> 42 #include <sys/vdev.h> 43 #include <sys/vdev_impl.h> 44 #include <sys/metaslab_impl.h> 45 #include <sys/dmu_objset.h> 46 #include <sys/dsl_dir.h> 47 #include <sys/dsl_dataset.h> 48 #include <sys/dsl_pool.h> 49 #include <sys/dbuf.h> 50 #include <sys/zil.h> 51 #include <sys/zil_impl.h> 52 #include <sys/stat.h> 53 #include <sys/resource.h> 54 #include <sys/dmu_traverse.h> 55 #include <sys/zio_checksum.h> 56 #include <sys/zio_compress.h> 57 #include <sys/zfs_fuid.h> 58 #include <sys/arc.h> 59 #include <sys/ddt.h> 60 #include <sys/zfeature.h> 61 #include <zfs_comutil.h> 62 #undef ZFS_MAXNAMELEN 63 #undef verify 64 #include <libzfs.h> 65 66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77 #ifndef lint 78 extern 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, const zbookmark_t *zb) 1012 { 1013 if (dnp == NULL) { 1014 ASSERT(zb->zb_level < 0); 1015 if (zb->zb_object == 0) 1016 return (zb->zb_blkid); 1017 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1018 } 1019 1020 ASSERT(zb->zb_level >= 0); 1021 1022 return ((zb->zb_blkid << 1023 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1024 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1025 } 1026 1027 static void 1028 snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1029 { 1030 const dva_t *dva = bp->blk_dva; 1031 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1032 1033 if (dump_opt['b'] >= 6) { 1034 snprintf_blkptr(blkbuf, buflen, bp); 1035 return; 1036 } 1037 1038 if (BP_IS_EMBEDDED(bp)) { 1039 (void) sprintf(blkbuf, 1040 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1041 (int)BPE_GET_ETYPE(bp), 1042 (u_longlong_t)BPE_GET_LSIZE(bp), 1043 (u_longlong_t)BPE_GET_PSIZE(bp), 1044 (u_longlong_t)bp->blk_birth); 1045 return; 1046 } 1047 1048 blkbuf[0] = '\0'; 1049 for (int i = 0; i < ndvas; i++) 1050 (void) snprintf(blkbuf + strlen(blkbuf), 1051 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1052 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1053 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1054 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1055 1056 if (BP_IS_HOLE(bp)) { 1057 (void) snprintf(blkbuf + strlen(blkbuf), 1058 buflen - strlen(blkbuf), "B=%llu", 1059 (u_longlong_t)bp->blk_birth); 1060 } else { 1061 (void) snprintf(blkbuf + strlen(blkbuf), 1062 buflen - strlen(blkbuf), 1063 "%llxL/%llxP F=%llu B=%llu/%llu", 1064 (u_longlong_t)BP_GET_LSIZE(bp), 1065 (u_longlong_t)BP_GET_PSIZE(bp), 1066 (u_longlong_t)BP_GET_FILL(bp), 1067 (u_longlong_t)bp->blk_birth, 1068 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1069 } 1070 } 1071 1072 static void 1073 print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1074 const dnode_phys_t *dnp) 1075 { 1076 char blkbuf[BP_SPRINTF_LEN]; 1077 int l; 1078 1079 if (!BP_IS_EMBEDDED(bp)) { 1080 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1081 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1082 } 1083 1084 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1085 1086 ASSERT(zb->zb_level >= 0); 1087 1088 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1089 if (l == zb->zb_level) { 1090 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1091 } else { 1092 (void) printf(" "); 1093 } 1094 } 1095 1096 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1097 (void) printf("%s\n", blkbuf); 1098 } 1099 1100 static int 1101 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1102 blkptr_t *bp, const zbookmark_t *zb) 1103 { 1104 int err = 0; 1105 1106 if (bp->blk_birth == 0) 1107 return (0); 1108 1109 print_indirect(bp, zb, dnp); 1110 1111 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1112 uint32_t flags = ARC_WAIT; 1113 int i; 1114 blkptr_t *cbp; 1115 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1116 arc_buf_t *buf; 1117 uint64_t fill = 0; 1118 1119 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1120 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1121 if (err) 1122 return (err); 1123 ASSERT(buf->b_data); 1124 1125 /* recursively visit blocks below this */ 1126 cbp = buf->b_data; 1127 for (i = 0; i < epb; i++, cbp++) { 1128 zbookmark_t czb; 1129 1130 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1131 zb->zb_level - 1, 1132 zb->zb_blkid * epb + i); 1133 err = visit_indirect(spa, dnp, cbp, &czb); 1134 if (err) 1135 break; 1136 fill += BP_GET_FILL(cbp); 1137 } 1138 if (!err) 1139 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1140 (void) arc_buf_remove_ref(buf, &buf); 1141 } 1142 1143 return (err); 1144 } 1145 1146 /*ARGSUSED*/ 1147 static void 1148 dump_indirect(dnode_t *dn) 1149 { 1150 dnode_phys_t *dnp = dn->dn_phys; 1151 int j; 1152 zbookmark_t czb; 1153 1154 (void) printf("Indirect blocks:\n"); 1155 1156 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1157 dn->dn_object, dnp->dn_nlevels - 1, 0); 1158 for (j = 0; j < dnp->dn_nblkptr; j++) { 1159 czb.zb_blkid = j; 1160 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1161 &dnp->dn_blkptr[j], &czb); 1162 } 1163 1164 (void) printf("\n"); 1165 } 1166 1167 /*ARGSUSED*/ 1168 static void 1169 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1170 { 1171 dsl_dir_phys_t *dd = data; 1172 time_t crtime; 1173 char nice[32]; 1174 1175 if (dd == NULL) 1176 return; 1177 1178 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1179 1180 crtime = dd->dd_creation_time; 1181 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1182 (void) printf("\t\thead_dataset_obj = %llu\n", 1183 (u_longlong_t)dd->dd_head_dataset_obj); 1184 (void) printf("\t\tparent_dir_obj = %llu\n", 1185 (u_longlong_t)dd->dd_parent_obj); 1186 (void) printf("\t\torigin_obj = %llu\n", 1187 (u_longlong_t)dd->dd_origin_obj); 1188 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1189 (u_longlong_t)dd->dd_child_dir_zapobj); 1190 zdb_nicenum(dd->dd_used_bytes, nice); 1191 (void) printf("\t\tused_bytes = %s\n", nice); 1192 zdb_nicenum(dd->dd_compressed_bytes, nice); 1193 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1194 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1195 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1196 zdb_nicenum(dd->dd_quota, nice); 1197 (void) printf("\t\tquota = %s\n", nice); 1198 zdb_nicenum(dd->dd_reserved, nice); 1199 (void) printf("\t\treserved = %s\n", nice); 1200 (void) printf("\t\tprops_zapobj = %llu\n", 1201 (u_longlong_t)dd->dd_props_zapobj); 1202 (void) printf("\t\tdeleg_zapobj = %llu\n", 1203 (u_longlong_t)dd->dd_deleg_zapobj); 1204 (void) printf("\t\tflags = %llx\n", 1205 (u_longlong_t)dd->dd_flags); 1206 1207 #define DO(which) \ 1208 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1209 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1210 DO(HEAD); 1211 DO(SNAP); 1212 DO(CHILD); 1213 DO(CHILD_RSRV); 1214 DO(REFRSRV); 1215 #undef DO 1216 } 1217 1218 /*ARGSUSED*/ 1219 static void 1220 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1221 { 1222 dsl_dataset_phys_t *ds = data; 1223 time_t crtime; 1224 char used[32], compressed[32], uncompressed[32], unique[32]; 1225 char blkbuf[BP_SPRINTF_LEN]; 1226 1227 if (ds == NULL) 1228 return; 1229 1230 ASSERT(size == sizeof (*ds)); 1231 crtime = ds->ds_creation_time; 1232 zdb_nicenum(ds->ds_referenced_bytes, used); 1233 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1234 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1235 zdb_nicenum(ds->ds_unique_bytes, unique); 1236 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1237 1238 (void) printf("\t\tdir_obj = %llu\n", 1239 (u_longlong_t)ds->ds_dir_obj); 1240 (void) printf("\t\tprev_snap_obj = %llu\n", 1241 (u_longlong_t)ds->ds_prev_snap_obj); 1242 (void) printf("\t\tprev_snap_txg = %llu\n", 1243 (u_longlong_t)ds->ds_prev_snap_txg); 1244 (void) printf("\t\tnext_snap_obj = %llu\n", 1245 (u_longlong_t)ds->ds_next_snap_obj); 1246 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1247 (u_longlong_t)ds->ds_snapnames_zapobj); 1248 (void) printf("\t\tnum_children = %llu\n", 1249 (u_longlong_t)ds->ds_num_children); 1250 (void) printf("\t\tuserrefs_obj = %llu\n", 1251 (u_longlong_t)ds->ds_userrefs_obj); 1252 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1253 (void) printf("\t\tcreation_txg = %llu\n", 1254 (u_longlong_t)ds->ds_creation_txg); 1255 (void) printf("\t\tdeadlist_obj = %llu\n", 1256 (u_longlong_t)ds->ds_deadlist_obj); 1257 (void) printf("\t\tused_bytes = %s\n", used); 1258 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1259 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1260 (void) printf("\t\tunique = %s\n", unique); 1261 (void) printf("\t\tfsid_guid = %llu\n", 1262 (u_longlong_t)ds->ds_fsid_guid); 1263 (void) printf("\t\tguid = %llu\n", 1264 (u_longlong_t)ds->ds_guid); 1265 (void) printf("\t\tflags = %llx\n", 1266 (u_longlong_t)ds->ds_flags); 1267 (void) printf("\t\tnext_clones_obj = %llu\n", 1268 (u_longlong_t)ds->ds_next_clones_obj); 1269 (void) printf("\t\tprops_obj = %llu\n", 1270 (u_longlong_t)ds->ds_props_obj); 1271 (void) printf("\t\tbp = %s\n", blkbuf); 1272 } 1273 1274 /* ARGSUSED */ 1275 static int 1276 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1277 { 1278 char blkbuf[BP_SPRINTF_LEN]; 1279 1280 if (bp->blk_birth != 0) { 1281 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1282 (void) printf("\t%s\n", blkbuf); 1283 } 1284 return (0); 1285 } 1286 1287 static void 1288 dump_bptree(objset_t *os, uint64_t obj, char *name) 1289 { 1290 char bytes[32]; 1291 bptree_phys_t *bt; 1292 dmu_buf_t *db; 1293 1294 if (dump_opt['d'] < 3) 1295 return; 1296 1297 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1298 bt = db->db_data; 1299 zdb_nicenum(bt->bt_bytes, bytes); 1300 (void) printf("\n %s: %llu datasets, %s\n", 1301 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1302 dmu_buf_rele(db, FTAG); 1303 1304 if (dump_opt['d'] < 5) 1305 return; 1306 1307 (void) printf("\n"); 1308 1309 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1310 } 1311 1312 /* ARGSUSED */ 1313 static int 1314 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1315 { 1316 char blkbuf[BP_SPRINTF_LEN]; 1317 1318 ASSERT(bp->blk_birth != 0); 1319 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1320 (void) printf("\t%s\n", blkbuf); 1321 return (0); 1322 } 1323 1324 static void 1325 dump_bpobj(bpobj_t *bpo, char *name, int indent) 1326 { 1327 char bytes[32]; 1328 char comp[32]; 1329 char uncomp[32]; 1330 1331 if (dump_opt['d'] < 3) 1332 return; 1333 1334 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1335 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1336 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1337 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1338 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1339 "%llu subobjs, %s (%s/%s comp)\n", 1340 indent * 8, name, 1341 (u_longlong_t)bpo->bpo_object, 1342 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1343 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1344 bytes, comp, uncomp); 1345 1346 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1347 uint64_t subobj; 1348 bpobj_t subbpo; 1349 int error; 1350 VERIFY0(dmu_read(bpo->bpo_os, 1351 bpo->bpo_phys->bpo_subobjs, 1352 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1353 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1354 if (error != 0) { 1355 (void) printf("ERROR %u while trying to open " 1356 "subobj id %llu\n", 1357 error, (u_longlong_t)subobj); 1358 continue; 1359 } 1360 dump_bpobj(&subbpo, "subobj", indent + 1); 1361 bpobj_close(&subbpo); 1362 } 1363 } else { 1364 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1365 indent * 8, name, 1366 (u_longlong_t)bpo->bpo_object, 1367 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1368 bytes); 1369 } 1370 1371 if (dump_opt['d'] < 5) 1372 return; 1373 1374 1375 if (indent == 0) { 1376 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1377 (void) printf("\n"); 1378 } 1379 } 1380 1381 static void 1382 dump_deadlist(dsl_deadlist_t *dl) 1383 { 1384 dsl_deadlist_entry_t *dle; 1385 uint64_t unused; 1386 char bytes[32]; 1387 char comp[32]; 1388 char uncomp[32]; 1389 1390 if (dump_opt['d'] < 3) 1391 return; 1392 1393 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1394 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1395 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1396 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1397 bytes, comp, uncomp); 1398 1399 if (dump_opt['d'] < 4) 1400 return; 1401 1402 (void) printf("\n"); 1403 1404 /* force the tree to be loaded */ 1405 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1406 1407 for (dle = avl_first(&dl->dl_tree); dle; 1408 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1409 if (dump_opt['d'] >= 5) { 1410 char buf[128]; 1411 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1412 (longlong_t)dle->dle_mintxg, 1413 (longlong_t)dle->dle_bpobj.bpo_object); 1414 1415 dump_bpobj(&dle->dle_bpobj, buf, 0); 1416 } else { 1417 (void) printf("mintxg %llu -> obj %llu\n", 1418 (longlong_t)dle->dle_mintxg, 1419 (longlong_t)dle->dle_bpobj.bpo_object); 1420 1421 } 1422 } 1423 } 1424 1425 static avl_tree_t idx_tree; 1426 static avl_tree_t domain_tree; 1427 static boolean_t fuid_table_loaded; 1428 static boolean_t sa_loaded; 1429 sa_attr_type_t *sa_attr_table; 1430 1431 static void 1432 fuid_table_destroy() 1433 { 1434 if (fuid_table_loaded) { 1435 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1436 fuid_table_loaded = B_FALSE; 1437 } 1438 } 1439 1440 /* 1441 * print uid or gid information. 1442 * For normal POSIX id just the id is printed in decimal format. 1443 * For CIFS files with FUID the fuid is printed in hex followed by 1444 * the domain-rid string. 1445 */ 1446 static void 1447 print_idstr(uint64_t id, const char *id_type) 1448 { 1449 if (FUID_INDEX(id)) { 1450 char *domain; 1451 1452 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1453 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1454 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1455 } else { 1456 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1457 } 1458 1459 } 1460 1461 static void 1462 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1463 { 1464 uint32_t uid_idx, gid_idx; 1465 1466 uid_idx = FUID_INDEX(uid); 1467 gid_idx = FUID_INDEX(gid); 1468 1469 /* Load domain table, if not already loaded */ 1470 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1471 uint64_t fuid_obj; 1472 1473 /* first find the fuid object. It lives in the master node */ 1474 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1475 8, 1, &fuid_obj) == 0); 1476 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1477 (void) zfs_fuid_table_load(os, fuid_obj, 1478 &idx_tree, &domain_tree); 1479 fuid_table_loaded = B_TRUE; 1480 } 1481 1482 print_idstr(uid, "uid"); 1483 print_idstr(gid, "gid"); 1484 } 1485 1486 /*ARGSUSED*/ 1487 static void 1488 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1489 { 1490 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1491 sa_handle_t *hdl; 1492 uint64_t xattr, rdev, gen; 1493 uint64_t uid, gid, mode, fsize, parent, links; 1494 uint64_t pflags; 1495 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1496 time_t z_crtime, z_atime, z_mtime, z_ctime; 1497 sa_bulk_attr_t bulk[12]; 1498 int idx = 0; 1499 int error; 1500 1501 if (!sa_loaded) { 1502 uint64_t sa_attrs = 0; 1503 uint64_t version; 1504 1505 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1506 8, 1, &version) == 0); 1507 if (version >= ZPL_VERSION_SA) { 1508 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1509 8, 1, &sa_attrs) == 0); 1510 } 1511 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1512 ZPL_END, &sa_attr_table)) != 0) { 1513 (void) printf("sa_setup failed errno %d, can't " 1514 "display znode contents\n", error); 1515 return; 1516 } 1517 sa_loaded = B_TRUE; 1518 } 1519 1520 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1521 (void) printf("Failed to get handle for SA znode\n"); 1522 return; 1523 } 1524 1525 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1526 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1527 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1528 &links, 8); 1529 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1530 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1531 &mode, 8); 1532 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1533 NULL, &parent, 8); 1534 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1535 &fsize, 8); 1536 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1537 acctm, 16); 1538 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1539 modtm, 16); 1540 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1541 crtm, 16); 1542 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1543 chgtm, 16); 1544 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1545 &pflags, 8); 1546 1547 if (sa_bulk_lookup(hdl, bulk, idx)) { 1548 (void) sa_handle_destroy(hdl); 1549 return; 1550 } 1551 1552 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1553 if (error != 0) { 1554 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1555 (u_longlong_t)object); 1556 } 1557 if (dump_opt['d'] < 3) { 1558 (void) printf("\t%s\n", path); 1559 (void) sa_handle_destroy(hdl); 1560 return; 1561 } 1562 1563 z_crtime = (time_t)crtm[0]; 1564 z_atime = (time_t)acctm[0]; 1565 z_mtime = (time_t)modtm[0]; 1566 z_ctime = (time_t)chgtm[0]; 1567 1568 (void) printf("\tpath %s\n", path); 1569 dump_uidgid(os, uid, gid); 1570 (void) printf("\tatime %s", ctime(&z_atime)); 1571 (void) printf("\tmtime %s", ctime(&z_mtime)); 1572 (void) printf("\tctime %s", ctime(&z_ctime)); 1573 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1574 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1575 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1576 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1577 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1578 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1579 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1580 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1581 sizeof (uint64_t)) == 0) 1582 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1583 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1584 sizeof (uint64_t)) == 0) 1585 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1586 sa_handle_destroy(hdl); 1587 } 1588 1589 /*ARGSUSED*/ 1590 static void 1591 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1592 { 1593 } 1594 1595 /*ARGSUSED*/ 1596 static void 1597 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1598 { 1599 } 1600 1601 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1602 dump_none, /* unallocated */ 1603 dump_zap, /* object directory */ 1604 dump_uint64, /* object array */ 1605 dump_none, /* packed nvlist */ 1606 dump_packed_nvlist, /* packed nvlist size */ 1607 dump_none, /* bplist */ 1608 dump_none, /* bplist header */ 1609 dump_none, /* SPA space map header */ 1610 dump_none, /* SPA space map */ 1611 dump_none, /* ZIL intent log */ 1612 dump_dnode, /* DMU dnode */ 1613 dump_dmu_objset, /* DMU objset */ 1614 dump_dsl_dir, /* DSL directory */ 1615 dump_zap, /* DSL directory child map */ 1616 dump_zap, /* DSL dataset snap map */ 1617 dump_zap, /* DSL props */ 1618 dump_dsl_dataset, /* DSL dataset */ 1619 dump_znode, /* ZFS znode */ 1620 dump_acl, /* ZFS V0 ACL */ 1621 dump_uint8, /* ZFS plain file */ 1622 dump_zpldir, /* ZFS directory */ 1623 dump_zap, /* ZFS master node */ 1624 dump_zap, /* ZFS delete queue */ 1625 dump_uint8, /* zvol object */ 1626 dump_zap, /* zvol prop */ 1627 dump_uint8, /* other uint8[] */ 1628 dump_uint64, /* other uint64[] */ 1629 dump_zap, /* other ZAP */ 1630 dump_zap, /* persistent error log */ 1631 dump_uint8, /* SPA history */ 1632 dump_history_offsets, /* SPA history offsets */ 1633 dump_zap, /* Pool properties */ 1634 dump_zap, /* DSL permissions */ 1635 dump_acl, /* ZFS ACL */ 1636 dump_uint8, /* ZFS SYSACL */ 1637 dump_none, /* FUID nvlist */ 1638 dump_packed_nvlist, /* FUID nvlist size */ 1639 dump_zap, /* DSL dataset next clones */ 1640 dump_zap, /* DSL scrub queue */ 1641 dump_zap, /* ZFS user/group used */ 1642 dump_zap, /* ZFS user/group quota */ 1643 dump_zap, /* snapshot refcount tags */ 1644 dump_ddt_zap, /* DDT ZAP object */ 1645 dump_zap, /* DDT statistics */ 1646 dump_znode, /* SA object */ 1647 dump_zap, /* SA Master Node */ 1648 dump_sa_attrs, /* SA attribute registration */ 1649 dump_sa_layouts, /* SA attribute layouts */ 1650 dump_zap, /* DSL scrub translations */ 1651 dump_none, /* fake dedup BP */ 1652 dump_zap, /* deadlist */ 1653 dump_none, /* deadlist hdr */ 1654 dump_zap, /* dsl clones */ 1655 dump_none, /* bpobj subobjs */ 1656 dump_unknown, /* Unknown type, must be last */ 1657 }; 1658 1659 static void 1660 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1661 { 1662 dmu_buf_t *db = NULL; 1663 dmu_object_info_t doi; 1664 dnode_t *dn; 1665 void *bonus = NULL; 1666 size_t bsize = 0; 1667 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1668 char bonus_size[32]; 1669 char aux[50]; 1670 int error; 1671 1672 if (*print_header) { 1673 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1674 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1675 "%full", "type"); 1676 *print_header = 0; 1677 } 1678 1679 if (object == 0) { 1680 dn = DMU_META_DNODE(os); 1681 } else { 1682 error = dmu_bonus_hold(os, object, FTAG, &db); 1683 if (error) 1684 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1685 object, error); 1686 bonus = db->db_data; 1687 bsize = db->db_size; 1688 dn = DB_DNODE((dmu_buf_impl_t *)db); 1689 } 1690 dmu_object_info_from_dnode(dn, &doi); 1691 1692 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1693 zdb_nicenum(doi.doi_data_block_size, dblk); 1694 zdb_nicenum(doi.doi_max_offset, lsize); 1695 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1696 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1697 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1698 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1699 doi.doi_max_offset); 1700 1701 aux[0] = '\0'; 1702 1703 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1704 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1705 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1706 } 1707 1708 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1709 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1710 ZDB_COMPRESS_NAME(doi.doi_compress)); 1711 } 1712 1713 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1714 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1715 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1716 1717 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1718 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1719 "", "", "", "", "", bonus_size, "bonus", 1720 ZDB_OT_NAME(doi.doi_bonus_type)); 1721 } 1722 1723 if (verbosity >= 4) { 1724 (void) printf("\tdnode flags: %s%s%s\n", 1725 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1726 "USED_BYTES " : "", 1727 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1728 "USERUSED_ACCOUNTED " : "", 1729 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1730 "SPILL_BLKPTR" : ""); 1731 (void) printf("\tdnode maxblkid: %llu\n", 1732 (longlong_t)dn->dn_phys->dn_maxblkid); 1733 1734 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1735 bonus, bsize); 1736 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1737 *print_header = 1; 1738 } 1739 1740 if (verbosity >= 5) 1741 dump_indirect(dn); 1742 1743 if (verbosity >= 5) { 1744 /* 1745 * Report the list of segments that comprise the object. 1746 */ 1747 uint64_t start = 0; 1748 uint64_t end; 1749 uint64_t blkfill = 1; 1750 int minlvl = 1; 1751 1752 if (dn->dn_type == DMU_OT_DNODE) { 1753 minlvl = 0; 1754 blkfill = DNODES_PER_BLOCK; 1755 } 1756 1757 for (;;) { 1758 char segsize[32]; 1759 error = dnode_next_offset(dn, 1760 0, &start, minlvl, blkfill, 0); 1761 if (error) 1762 break; 1763 end = start; 1764 error = dnode_next_offset(dn, 1765 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1766 zdb_nicenum(end - start, segsize); 1767 (void) printf("\t\tsegment [%016llx, %016llx)" 1768 " size %5s\n", (u_longlong_t)start, 1769 (u_longlong_t)end, segsize); 1770 if (error) 1771 break; 1772 start = end; 1773 } 1774 } 1775 1776 if (db != NULL) 1777 dmu_buf_rele(db, FTAG); 1778 } 1779 1780 static char *objset_types[DMU_OST_NUMTYPES] = { 1781 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1782 1783 static void 1784 dump_dir(objset_t *os) 1785 { 1786 dmu_objset_stats_t dds; 1787 uint64_t object, object_count; 1788 uint64_t refdbytes, usedobjs, scratch; 1789 char numbuf[32]; 1790 char blkbuf[BP_SPRINTF_LEN + 20]; 1791 char osname[MAXNAMELEN]; 1792 char *type = "UNKNOWN"; 1793 int verbosity = dump_opt['d']; 1794 int print_header = 1; 1795 int i, error; 1796 1797 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1798 dmu_objset_fast_stat(os, &dds); 1799 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1800 1801 if (dds.dds_type < DMU_OST_NUMTYPES) 1802 type = objset_types[dds.dds_type]; 1803 1804 if (dds.dds_type == DMU_OST_META) { 1805 dds.dds_creation_txg = TXG_INITIAL; 1806 usedobjs = BP_GET_FILL(os->os_rootbp); 1807 refdbytes = os->os_spa->spa_dsl_pool-> 1808 dp_mos_dir->dd_phys->dd_used_bytes; 1809 } else { 1810 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1811 } 1812 1813 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 1814 1815 zdb_nicenum(refdbytes, numbuf); 1816 1817 if (verbosity >= 4) { 1818 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1819 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1820 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1821 } else { 1822 blkbuf[0] = '\0'; 1823 } 1824 1825 dmu_objset_name(os, osname); 1826 1827 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1828 "%s, %llu objects%s\n", 1829 osname, type, (u_longlong_t)dmu_objset_id(os), 1830 (u_longlong_t)dds.dds_creation_txg, 1831 numbuf, (u_longlong_t)usedobjs, blkbuf); 1832 1833 if (zopt_objects != 0) { 1834 for (i = 0; i < zopt_objects; i++) 1835 dump_object(os, zopt_object[i], verbosity, 1836 &print_header); 1837 (void) printf("\n"); 1838 return; 1839 } 1840 1841 if (dump_opt['i'] != 0 || verbosity >= 2) 1842 dump_intent_log(dmu_objset_zil(os)); 1843 1844 if (dmu_objset_ds(os) != NULL) 1845 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1846 1847 if (verbosity < 2) 1848 return; 1849 1850 if (BP_IS_HOLE(os->os_rootbp)) 1851 return; 1852 1853 dump_object(os, 0, verbosity, &print_header); 1854 object_count = 0; 1855 if (DMU_USERUSED_DNODE(os) != NULL && 1856 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1857 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1858 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1859 } 1860 1861 object = 0; 1862 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1863 dump_object(os, object, verbosity, &print_header); 1864 object_count++; 1865 } 1866 1867 ASSERT3U(object_count, ==, usedobjs); 1868 1869 (void) printf("\n"); 1870 1871 if (error != ESRCH) { 1872 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1873 abort(); 1874 } 1875 } 1876 1877 static void 1878 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1879 { 1880 time_t timestamp = ub->ub_timestamp; 1881 1882 (void) printf(header ? header : ""); 1883 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1884 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1885 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1886 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1887 (void) printf("\ttimestamp = %llu UTC = %s", 1888 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1889 if (dump_opt['u'] >= 3) { 1890 char blkbuf[BP_SPRINTF_LEN]; 1891 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1892 (void) printf("\trootbp = %s\n", blkbuf); 1893 } 1894 (void) printf(footer ? footer : ""); 1895 } 1896 1897 static void 1898 dump_config(spa_t *spa) 1899 { 1900 dmu_buf_t *db; 1901 size_t nvsize = 0; 1902 int error = 0; 1903 1904 1905 error = dmu_bonus_hold(spa->spa_meta_objset, 1906 spa->spa_config_object, FTAG, &db); 1907 1908 if (error == 0) { 1909 nvsize = *(uint64_t *)db->db_data; 1910 dmu_buf_rele(db, FTAG); 1911 1912 (void) printf("\nMOS Configuration:\n"); 1913 dump_packed_nvlist(spa->spa_meta_objset, 1914 spa->spa_config_object, (void *)&nvsize, 1); 1915 } else { 1916 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1917 (u_longlong_t)spa->spa_config_object, error); 1918 } 1919 } 1920 1921 static void 1922 dump_cachefile(const char *cachefile) 1923 { 1924 int fd; 1925 struct stat64 statbuf; 1926 char *buf; 1927 nvlist_t *config; 1928 1929 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1930 (void) printf("cannot open '%s': %s\n", cachefile, 1931 strerror(errno)); 1932 exit(1); 1933 } 1934 1935 if (fstat64(fd, &statbuf) != 0) { 1936 (void) printf("failed to stat '%s': %s\n", cachefile, 1937 strerror(errno)); 1938 exit(1); 1939 } 1940 1941 if ((buf = malloc(statbuf.st_size)) == NULL) { 1942 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1943 (u_longlong_t)statbuf.st_size); 1944 exit(1); 1945 } 1946 1947 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1948 (void) fprintf(stderr, "failed to read %llu bytes\n", 1949 (u_longlong_t)statbuf.st_size); 1950 exit(1); 1951 } 1952 1953 (void) close(fd); 1954 1955 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1956 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1957 exit(1); 1958 } 1959 1960 free(buf); 1961 1962 dump_nvlist(config, 0); 1963 1964 nvlist_free(config); 1965 } 1966 1967 #define ZDB_MAX_UB_HEADER_SIZE 32 1968 1969 static void 1970 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1971 { 1972 vdev_t vd; 1973 vdev_t *vdp = &vd; 1974 char header[ZDB_MAX_UB_HEADER_SIZE]; 1975 1976 vd.vdev_ashift = ashift; 1977 vdp->vdev_top = vdp; 1978 1979 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1980 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1981 uberblock_t *ub = (void *)((char *)lbl + uoff); 1982 1983 if (uberblock_verify(ub)) 1984 continue; 1985 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1986 "Uberblock[%d]\n", i); 1987 dump_uberblock(ub, header, ""); 1988 } 1989 } 1990 1991 static void 1992 dump_label(const char *dev) 1993 { 1994 int fd; 1995 vdev_label_t label; 1996 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 1997 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1998 struct stat64 statbuf; 1999 uint64_t psize, ashift; 2000 int len = strlen(dev) + 1; 2001 2002 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 2003 len++; 2004 path = malloc(len); 2005 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 2006 } else { 2007 path = strdup(dev); 2008 } 2009 2010 if ((fd = open64(path, O_RDONLY)) < 0) { 2011 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2012 free(path); 2013 exit(1); 2014 } 2015 2016 if (fstat64(fd, &statbuf) != 0) { 2017 (void) printf("failed to stat '%s': %s\n", path, 2018 strerror(errno)); 2019 free(path); 2020 (void) close(fd); 2021 exit(1); 2022 } 2023 2024 if (S_ISBLK(statbuf.st_mode)) { 2025 (void) printf("cannot use '%s': character device required\n", 2026 path); 2027 free(path); 2028 (void) close(fd); 2029 exit(1); 2030 } 2031 2032 psize = statbuf.st_size; 2033 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2034 2035 for (int l = 0; l < VDEV_LABELS; l++) { 2036 nvlist_t *config = NULL; 2037 2038 (void) printf("--------------------------------------------\n"); 2039 (void) printf("LABEL %d\n", l); 2040 (void) printf("--------------------------------------------\n"); 2041 2042 if (pread64(fd, &label, sizeof (label), 2043 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2044 (void) printf("failed to read label %d\n", l); 2045 continue; 2046 } 2047 2048 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2049 (void) printf("failed to unpack label %d\n", l); 2050 ashift = SPA_MINBLOCKSHIFT; 2051 } else { 2052 nvlist_t *vdev_tree = NULL; 2053 2054 dump_nvlist(config, 4); 2055 if ((nvlist_lookup_nvlist(config, 2056 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2057 (nvlist_lookup_uint64(vdev_tree, 2058 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2059 ashift = SPA_MINBLOCKSHIFT; 2060 nvlist_free(config); 2061 } 2062 if (dump_opt['u']) 2063 dump_label_uberblocks(&label, ashift); 2064 } 2065 2066 free(path); 2067 (void) close(fd); 2068 } 2069 2070 /*ARGSUSED*/ 2071 static int 2072 dump_one_dir(const char *dsname, void *arg) 2073 { 2074 int error; 2075 objset_t *os; 2076 2077 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2078 if (error) { 2079 (void) printf("Could not open %s, error %d\n", dsname, error); 2080 return (0); 2081 } 2082 dump_dir(os); 2083 dmu_objset_disown(os, FTAG); 2084 fuid_table_destroy(); 2085 sa_loaded = B_FALSE; 2086 return (0); 2087 } 2088 2089 /* 2090 * Block statistics. 2091 */ 2092 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2093 typedef struct zdb_blkstats { 2094 uint64_t zb_asize; 2095 uint64_t zb_lsize; 2096 uint64_t zb_psize; 2097 uint64_t zb_count; 2098 uint64_t zb_gangs; 2099 uint64_t zb_ditto_samevdev; 2100 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2101 } zdb_blkstats_t; 2102 2103 /* 2104 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2105 */ 2106 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2107 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2108 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2109 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2110 2111 static char *zdb_ot_extname[] = { 2112 "deferred free", 2113 "dedup ditto", 2114 "other", 2115 "Total", 2116 }; 2117 2118 #define ZB_TOTAL DN_MAX_LEVELS 2119 2120 typedef struct zdb_cb { 2121 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2122 uint64_t zcb_dedup_asize; 2123 uint64_t zcb_dedup_blocks; 2124 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2125 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2126 [BPE_PAYLOAD_SIZE]; 2127 uint64_t zcb_start; 2128 uint64_t zcb_lastprint; 2129 uint64_t zcb_totalasize; 2130 uint64_t zcb_errors[256]; 2131 int zcb_readfails; 2132 int zcb_haderrors; 2133 spa_t *zcb_spa; 2134 } zdb_cb_t; 2135 2136 static void 2137 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2138 dmu_object_type_t type) 2139 { 2140 uint64_t refcnt = 0; 2141 2142 ASSERT(type < ZDB_OT_TOTAL); 2143 2144 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2145 return; 2146 2147 for (int i = 0; i < 4; i++) { 2148 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2149 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2150 int equal; 2151 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2152 2153 zb->zb_asize += BP_GET_ASIZE(bp); 2154 zb->zb_lsize += BP_GET_LSIZE(bp); 2155 zb->zb_psize += BP_GET_PSIZE(bp); 2156 zb->zb_count++; 2157 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2158 2159 zb->zb_gangs += BP_COUNT_GANG(bp); 2160 2161 switch (BP_GET_NDVAS(bp)) { 2162 case 2: 2163 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2164 DVA_GET_VDEV(&bp->blk_dva[1])) 2165 zb->zb_ditto_samevdev++; 2166 break; 2167 case 3: 2168 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2169 DVA_GET_VDEV(&bp->blk_dva[1])) + 2170 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2171 DVA_GET_VDEV(&bp->blk_dva[2])) + 2172 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2173 DVA_GET_VDEV(&bp->blk_dva[2])); 2174 if (equal != 0) 2175 zb->zb_ditto_samevdev++; 2176 break; 2177 } 2178 2179 } 2180 2181 if (BP_IS_EMBEDDED(bp)) { 2182 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2183 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2184 [BPE_GET_PSIZE(bp)]++; 2185 return; 2186 } 2187 2188 if (dump_opt['L']) 2189 return; 2190 2191 if (BP_GET_DEDUP(bp)) { 2192 ddt_t *ddt; 2193 ddt_entry_t *dde; 2194 2195 ddt = ddt_select(zcb->zcb_spa, bp); 2196 ddt_enter(ddt); 2197 dde = ddt_lookup(ddt, bp, B_FALSE); 2198 2199 if (dde == NULL) { 2200 refcnt = 0; 2201 } else { 2202 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2203 ddt_phys_decref(ddp); 2204 refcnt = ddp->ddp_refcnt; 2205 if (ddt_phys_total_refcnt(dde) == 0) 2206 ddt_remove(ddt, dde); 2207 } 2208 ddt_exit(ddt); 2209 } 2210 2211 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2212 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2213 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2214 } 2215 2216 static void 2217 zdb_blkptr_done(zio_t *zio) 2218 { 2219 spa_t *spa = zio->io_spa; 2220 blkptr_t *bp = zio->io_bp; 2221 int ioerr = zio->io_error; 2222 zdb_cb_t *zcb = zio->io_private; 2223 zbookmark_t *zb = &zio->io_bookmark; 2224 2225 zio_data_buf_free(zio->io_data, zio->io_size); 2226 2227 mutex_enter(&spa->spa_scrub_lock); 2228 spa->spa_scrub_inflight--; 2229 cv_broadcast(&spa->spa_scrub_io_cv); 2230 2231 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2232 char blkbuf[BP_SPRINTF_LEN]; 2233 2234 zcb->zcb_haderrors = 1; 2235 zcb->zcb_errors[ioerr]++; 2236 2237 if (dump_opt['b'] >= 2) 2238 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2239 else 2240 blkbuf[0] = '\0'; 2241 2242 (void) printf("zdb_blkptr_cb: " 2243 "Got error %d reading " 2244 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2245 ioerr, 2246 (u_longlong_t)zb->zb_objset, 2247 (u_longlong_t)zb->zb_object, 2248 (u_longlong_t)zb->zb_level, 2249 (u_longlong_t)zb->zb_blkid, 2250 blkbuf); 2251 } 2252 mutex_exit(&spa->spa_scrub_lock); 2253 } 2254 2255 static int 2256 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2257 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2258 { 2259 zdb_cb_t *zcb = arg; 2260 dmu_object_type_t type; 2261 boolean_t is_metadata; 2262 2263 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2264 char blkbuf[BP_SPRINTF_LEN]; 2265 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2266 (void) printf("objset %llu object %llu " 2267 "level %lld offset 0x%llx %s\n", 2268 (u_longlong_t)zb->zb_objset, 2269 (u_longlong_t)zb->zb_object, 2270 (longlong_t)zb->zb_level, 2271 (u_longlong_t)blkid2offset(dnp, bp, zb), 2272 blkbuf); 2273 } 2274 2275 if (BP_IS_HOLE(bp)) 2276 return (0); 2277 2278 type = BP_GET_TYPE(bp); 2279 2280 zdb_count_block(zcb, zilog, bp, 2281 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2282 2283 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2284 2285 if (!BP_IS_EMBEDDED(bp) && 2286 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2287 size_t size = BP_GET_PSIZE(bp); 2288 void *data = zio_data_buf_alloc(size); 2289 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2290 2291 /* If it's an intent log block, failure is expected. */ 2292 if (zb->zb_level == ZB_ZIL_LEVEL) 2293 flags |= ZIO_FLAG_SPECULATIVE; 2294 2295 mutex_enter(&spa->spa_scrub_lock); 2296 while (spa->spa_scrub_inflight > max_inflight) 2297 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2298 spa->spa_scrub_inflight++; 2299 mutex_exit(&spa->spa_scrub_lock); 2300 2301 zio_nowait(zio_read(NULL, spa, bp, data, size, 2302 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2303 } 2304 2305 zcb->zcb_readfails = 0; 2306 2307 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2308 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2309 uint64_t now = gethrtime(); 2310 char buf[10]; 2311 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2312 int kb_per_sec = 2313 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2314 int sec_remaining = 2315 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2316 2317 zfs_nicenum(bytes, buf, sizeof (buf)); 2318 (void) fprintf(stderr, 2319 "\r%5s completed (%4dMB/s) " 2320 "estimated time remaining: %uhr %02umin %02usec ", 2321 buf, kb_per_sec / 1024, 2322 sec_remaining / 60 / 60, 2323 sec_remaining / 60 % 60, 2324 sec_remaining % 60); 2325 2326 zcb->zcb_lastprint = now; 2327 } 2328 2329 return (0); 2330 } 2331 2332 static void 2333 zdb_leak(void *arg, uint64_t start, uint64_t size) 2334 { 2335 vdev_t *vd = arg; 2336 2337 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2338 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2339 } 2340 2341 static metaslab_ops_t zdb_metaslab_ops = { 2342 NULL, /* alloc */ 2343 NULL /* fragmented */ 2344 }; 2345 2346 static void 2347 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2348 { 2349 ddt_bookmark_t ddb = { 0 }; 2350 ddt_entry_t dde; 2351 int error; 2352 2353 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2354 blkptr_t blk; 2355 ddt_phys_t *ddp = dde.dde_phys; 2356 2357 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2358 return; 2359 2360 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2361 2362 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2363 if (ddp->ddp_phys_birth == 0) 2364 continue; 2365 ddt_bp_create(ddb.ddb_checksum, 2366 &dde.dde_key, ddp, &blk); 2367 if (p == DDT_PHYS_DITTO) { 2368 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2369 } else { 2370 zcb->zcb_dedup_asize += 2371 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2372 zcb->zcb_dedup_blocks++; 2373 } 2374 } 2375 if (!dump_opt['L']) { 2376 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2377 ddt_enter(ddt); 2378 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2379 ddt_exit(ddt); 2380 } 2381 } 2382 2383 ASSERT(error == ENOENT); 2384 } 2385 2386 static void 2387 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2388 { 2389 zcb->zcb_spa = spa; 2390 2391 if (!dump_opt['L']) { 2392 vdev_t *rvd = spa->spa_root_vdev; 2393 for (int c = 0; c < rvd->vdev_children; c++) { 2394 vdev_t *vd = rvd->vdev_child[c]; 2395 for (int m = 0; m < vd->vdev_ms_count; m++) { 2396 metaslab_t *msp = vd->vdev_ms[m]; 2397 mutex_enter(&msp->ms_lock); 2398 metaslab_unload(msp); 2399 2400 /* 2401 * For leak detection, we overload the metaslab 2402 * ms_tree to contain allocated segments 2403 * instead of free segments. As a result, 2404 * we can't use the normal metaslab_load/unload 2405 * interfaces. 2406 */ 2407 if (msp->ms_sm != NULL) { 2408 msp->ms_ops = &zdb_metaslab_ops; 2409 VERIFY0(space_map_load(msp->ms_sm, 2410 msp->ms_tree, SM_ALLOC)); 2411 msp->ms_loaded = B_TRUE; 2412 } 2413 mutex_exit(&msp->ms_lock); 2414 } 2415 } 2416 } 2417 2418 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2419 2420 zdb_ddt_leak_init(spa, zcb); 2421 2422 spa_config_exit(spa, SCL_CONFIG, FTAG); 2423 } 2424 2425 static void 2426 zdb_leak_fini(spa_t *spa) 2427 { 2428 if (!dump_opt['L']) { 2429 vdev_t *rvd = spa->spa_root_vdev; 2430 for (int c = 0; c < rvd->vdev_children; c++) { 2431 vdev_t *vd = rvd->vdev_child[c]; 2432 for (int m = 0; m < vd->vdev_ms_count; m++) { 2433 metaslab_t *msp = vd->vdev_ms[m]; 2434 mutex_enter(&msp->ms_lock); 2435 2436 /* 2437 * The ms_tree has been overloaded to 2438 * contain allocated segments. Now that we 2439 * finished traversing all blocks, any 2440 * block that remains in the ms_tree 2441 * represents an allocated block that we 2442 * did not claim during the traversal. 2443 * Claimed blocks would have been removed 2444 * from the ms_tree. 2445 */ 2446 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2447 msp->ms_loaded = B_FALSE; 2448 2449 mutex_exit(&msp->ms_lock); 2450 } 2451 } 2452 } 2453 } 2454 2455 /* ARGSUSED */ 2456 static int 2457 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2458 { 2459 zdb_cb_t *zcb = arg; 2460 2461 if (dump_opt['b'] >= 5) { 2462 char blkbuf[BP_SPRINTF_LEN]; 2463 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2464 (void) printf("[%s] %s\n", 2465 "deferred free", blkbuf); 2466 } 2467 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2468 return (0); 2469 } 2470 2471 static int 2472 dump_block_stats(spa_t *spa) 2473 { 2474 zdb_cb_t zcb = { 0 }; 2475 zdb_blkstats_t *zb, *tzb; 2476 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2477 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2478 boolean_t leaks = B_FALSE; 2479 2480 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2481 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2482 (dump_opt['c'] == 1) ? "metadata " : "", 2483 dump_opt['c'] ? "checksums " : "", 2484 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2485 !dump_opt['L'] ? "nothing leaked " : ""); 2486 2487 /* 2488 * Load all space maps as SM_ALLOC maps, then traverse the pool 2489 * claiming each block we discover. If the pool is perfectly 2490 * consistent, the space maps will be empty when we're done. 2491 * Anything left over is a leak; any block we can't claim (because 2492 * it's not part of any space map) is a double allocation, 2493 * reference to a freed block, or an unclaimed log block. 2494 */ 2495 zdb_leak_init(spa, &zcb); 2496 2497 /* 2498 * If there's a deferred-free bplist, process that first. 2499 */ 2500 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2501 count_block_cb, &zcb, NULL); 2502 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2503 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2504 count_block_cb, &zcb, NULL); 2505 } 2506 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2507 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2508 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2509 &zcb, NULL)); 2510 } 2511 2512 if (dump_opt['c'] > 1) 2513 flags |= TRAVERSE_PREFETCH_DATA; 2514 2515 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2516 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2517 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2518 2519 /* 2520 * If we've traversed the data blocks then we need to wait for those 2521 * I/Os to complete. We leverage "The Godfather" zio to wait on 2522 * all async I/Os to complete. 2523 */ 2524 if (dump_opt['c']) { 2525 (void) zio_wait(spa->spa_async_zio_root); 2526 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2527 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2528 ZIO_FLAG_GODFATHER); 2529 } 2530 2531 if (zcb.zcb_haderrors) { 2532 (void) printf("\nError counts:\n\n"); 2533 (void) printf("\t%5s %s\n", "errno", "count"); 2534 for (int e = 0; e < 256; e++) { 2535 if (zcb.zcb_errors[e] != 0) { 2536 (void) printf("\t%5d %llu\n", 2537 e, (u_longlong_t)zcb.zcb_errors[e]); 2538 } 2539 } 2540 } 2541 2542 /* 2543 * Report any leaked segments. 2544 */ 2545 zdb_leak_fini(spa); 2546 2547 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2548 2549 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2550 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2551 2552 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2553 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2554 2555 if (total_found == total_alloc) { 2556 if (!dump_opt['L']) 2557 (void) printf("\n\tNo leaks (block sum matches space" 2558 " maps exactly)\n"); 2559 } else { 2560 (void) printf("block traversal size %llu != alloc %llu " 2561 "(%s %lld)\n", 2562 (u_longlong_t)total_found, 2563 (u_longlong_t)total_alloc, 2564 (dump_opt['L']) ? "unreachable" : "leaked", 2565 (longlong_t)(total_alloc - total_found)); 2566 leaks = B_TRUE; 2567 } 2568 2569 if (tzb->zb_count == 0) 2570 return (2); 2571 2572 (void) printf("\n"); 2573 (void) printf("\tbp count: %10llu\n", 2574 (u_longlong_t)tzb->zb_count); 2575 (void) printf("\tganged count: %10llu\n", 2576 (longlong_t)tzb->zb_gangs); 2577 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2578 (u_longlong_t)tzb->zb_lsize, 2579 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2580 (void) printf("\tbp physical: %10llu avg:" 2581 " %6llu compression: %6.2f\n", 2582 (u_longlong_t)tzb->zb_psize, 2583 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2584 (double)tzb->zb_lsize / tzb->zb_psize); 2585 (void) printf("\tbp allocated: %10llu avg:" 2586 " %6llu compression: %6.2f\n", 2587 (u_longlong_t)tzb->zb_asize, 2588 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2589 (double)tzb->zb_lsize / tzb->zb_asize); 2590 (void) printf("\tbp deduped: %10llu ref>1:" 2591 " %6llu deduplication: %6.2f\n", 2592 (u_longlong_t)zcb.zcb_dedup_asize, 2593 (u_longlong_t)zcb.zcb_dedup_blocks, 2594 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2595 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2596 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2597 2598 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2599 if (zcb.zcb_embedded_blocks[i] == 0) 2600 continue; 2601 (void) printf("\n"); 2602 (void) printf("\tadditional, non-pointer bps of type %u: " 2603 "%10llu\n", 2604 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2605 2606 if (dump_opt['b'] >= 3) { 2607 (void) printf("\t number of (compressed) bytes: " 2608 "number of bps\n"); 2609 dump_histogram(zcb.zcb_embedded_histogram[i], 2610 sizeof (zcb.zcb_embedded_histogram[i]) / 2611 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2612 } 2613 } 2614 2615 if (tzb->zb_ditto_samevdev != 0) { 2616 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2617 (longlong_t)tzb->zb_ditto_samevdev); 2618 } 2619 2620 if (dump_opt['b'] >= 2) { 2621 int l, t, level; 2622 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2623 "\t avg\t comp\t%%Total\tType\n"); 2624 2625 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2626 char csize[32], lsize[32], psize[32], asize[32]; 2627 char avg[32], gang[32]; 2628 char *typename; 2629 2630 if (t < DMU_OT_NUMTYPES) 2631 typename = dmu_ot[t].ot_name; 2632 else 2633 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2634 2635 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2636 (void) printf("%6s\t%5s\t%5s\t%5s" 2637 "\t%5s\t%5s\t%6s\t%s\n", 2638 "-", 2639 "-", 2640 "-", 2641 "-", 2642 "-", 2643 "-", 2644 "-", 2645 typename); 2646 continue; 2647 } 2648 2649 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2650 level = (l == -1 ? ZB_TOTAL : l); 2651 zb = &zcb.zcb_type[level][t]; 2652 2653 if (zb->zb_asize == 0) 2654 continue; 2655 2656 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2657 continue; 2658 2659 if (level == 0 && zb->zb_asize == 2660 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2661 continue; 2662 2663 zdb_nicenum(zb->zb_count, csize); 2664 zdb_nicenum(zb->zb_lsize, lsize); 2665 zdb_nicenum(zb->zb_psize, psize); 2666 zdb_nicenum(zb->zb_asize, asize); 2667 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2668 zdb_nicenum(zb->zb_gangs, gang); 2669 2670 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2671 "\t%5.2f\t%6.2f\t", 2672 csize, lsize, psize, asize, avg, 2673 (double)zb->zb_lsize / zb->zb_psize, 2674 100.0 * zb->zb_asize / tzb->zb_asize); 2675 2676 if (level == ZB_TOTAL) 2677 (void) printf("%s\n", typename); 2678 else 2679 (void) printf(" L%d %s\n", 2680 level, typename); 2681 2682 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2683 (void) printf("\t number of ganged " 2684 "blocks: %s\n", gang); 2685 } 2686 2687 if (dump_opt['b'] >= 4) { 2688 (void) printf("psize " 2689 "(in 512-byte sectors): " 2690 "number of blocks\n"); 2691 dump_histogram(zb->zb_psize_histogram, 2692 PSIZE_HISTO_SIZE, 0); 2693 } 2694 } 2695 } 2696 } 2697 2698 (void) printf("\n"); 2699 2700 if (leaks) 2701 return (2); 2702 2703 if (zcb.zcb_haderrors) 2704 return (3); 2705 2706 return (0); 2707 } 2708 2709 typedef struct zdb_ddt_entry { 2710 ddt_key_t zdde_key; 2711 uint64_t zdde_ref_blocks; 2712 uint64_t zdde_ref_lsize; 2713 uint64_t zdde_ref_psize; 2714 uint64_t zdde_ref_dsize; 2715 avl_node_t zdde_node; 2716 } zdb_ddt_entry_t; 2717 2718 /* ARGSUSED */ 2719 static int 2720 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2721 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2722 { 2723 avl_tree_t *t = arg; 2724 avl_index_t where; 2725 zdb_ddt_entry_t *zdde, zdde_search; 2726 2727 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 2728 return (0); 2729 2730 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2731 (void) printf("traversing objset %llu, %llu objects, " 2732 "%lu blocks so far\n", 2733 (u_longlong_t)zb->zb_objset, 2734 (u_longlong_t)BP_GET_FILL(bp), 2735 avl_numnodes(t)); 2736 } 2737 2738 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2739 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2740 return (0); 2741 2742 ddt_key_fill(&zdde_search.zdde_key, bp); 2743 2744 zdde = avl_find(t, &zdde_search, &where); 2745 2746 if (zdde == NULL) { 2747 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2748 zdde->zdde_key = zdde_search.zdde_key; 2749 avl_insert(t, zdde, where); 2750 } 2751 2752 zdde->zdde_ref_blocks += 1; 2753 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2754 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2755 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2756 2757 return (0); 2758 } 2759 2760 static void 2761 dump_simulated_ddt(spa_t *spa) 2762 { 2763 avl_tree_t t; 2764 void *cookie = NULL; 2765 zdb_ddt_entry_t *zdde; 2766 ddt_histogram_t ddh_total = { 0 }; 2767 ddt_stat_t dds_total = { 0 }; 2768 2769 avl_create(&t, ddt_entry_compare, 2770 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2771 2772 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2773 2774 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2775 zdb_ddt_add_cb, &t); 2776 2777 spa_config_exit(spa, SCL_CONFIG, FTAG); 2778 2779 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2780 ddt_stat_t dds; 2781 uint64_t refcnt = zdde->zdde_ref_blocks; 2782 ASSERT(refcnt != 0); 2783 2784 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2785 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2786 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2787 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2788 2789 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2790 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2791 dds.dds_ref_psize = zdde->zdde_ref_psize; 2792 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2793 2794 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2795 &dds, 0); 2796 2797 umem_free(zdde, sizeof (*zdde)); 2798 } 2799 2800 avl_destroy(&t); 2801 2802 ddt_histogram_stat(&dds_total, &ddh_total); 2803 2804 (void) printf("Simulated DDT histogram:\n"); 2805 2806 zpool_dump_ddt(&dds_total, &ddh_total); 2807 2808 dump_dedup_ratio(&dds_total); 2809 } 2810 2811 static void 2812 dump_zpool(spa_t *spa) 2813 { 2814 dsl_pool_t *dp = spa_get_dsl(spa); 2815 int rc = 0; 2816 2817 if (dump_opt['S']) { 2818 dump_simulated_ddt(spa); 2819 return; 2820 } 2821 2822 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2823 (void) printf("\nCached configuration:\n"); 2824 dump_nvlist(spa->spa_config, 8); 2825 } 2826 2827 if (dump_opt['C']) 2828 dump_config(spa); 2829 2830 if (dump_opt['u']) 2831 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2832 2833 if (dump_opt['D']) 2834 dump_all_ddts(spa); 2835 2836 if (dump_opt['d'] > 2 || dump_opt['m']) 2837 dump_metaslabs(spa); 2838 2839 if (dump_opt['d'] || dump_opt['i']) { 2840 dump_dir(dp->dp_meta_objset); 2841 if (dump_opt['d'] >= 3) { 2842 dump_bpobj(&spa->spa_deferred_bpobj, 2843 "Deferred frees", 0); 2844 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2845 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2846 "Pool snapshot frees", 0); 2847 } 2848 2849 if (spa_feature_is_active(spa, 2850 SPA_FEATURE_ASYNC_DESTROY)) { 2851 dump_bptree(spa->spa_meta_objset, 2852 spa->spa_dsl_pool->dp_bptree_obj, 2853 "Pool dataset frees"); 2854 } 2855 dump_dtl(spa->spa_root_vdev, 0); 2856 } 2857 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2858 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2859 } 2860 if (dump_opt['b'] || dump_opt['c']) 2861 rc = dump_block_stats(spa); 2862 2863 if (rc == 0) 2864 rc = verify_spacemap_refcounts(spa); 2865 2866 if (dump_opt['s']) 2867 show_pool_stats(spa); 2868 2869 if (dump_opt['h']) 2870 dump_history(spa); 2871 2872 if (rc != 0) 2873 exit(rc); 2874 } 2875 2876 #define ZDB_FLAG_CHECKSUM 0x0001 2877 #define ZDB_FLAG_DECOMPRESS 0x0002 2878 #define ZDB_FLAG_BSWAP 0x0004 2879 #define ZDB_FLAG_GBH 0x0008 2880 #define ZDB_FLAG_INDIRECT 0x0010 2881 #define ZDB_FLAG_PHYS 0x0020 2882 #define ZDB_FLAG_RAW 0x0040 2883 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 2884 2885 int flagbits[256]; 2886 2887 static void 2888 zdb_print_blkptr(blkptr_t *bp, int flags) 2889 { 2890 char blkbuf[BP_SPRINTF_LEN]; 2891 2892 if (flags & ZDB_FLAG_BSWAP) 2893 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2894 2895 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2896 (void) printf("%s\n", blkbuf); 2897 } 2898 2899 static void 2900 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2901 { 2902 int i; 2903 2904 for (i = 0; i < nbps; i++) 2905 zdb_print_blkptr(&bp[i], flags); 2906 } 2907 2908 static void 2909 zdb_dump_gbh(void *buf, int flags) 2910 { 2911 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2912 } 2913 2914 static void 2915 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2916 { 2917 if (flags & ZDB_FLAG_BSWAP) 2918 byteswap_uint64_array(buf, size); 2919 (void) write(1, buf, size); 2920 } 2921 2922 static void 2923 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2924 { 2925 uint64_t *d = (uint64_t *)buf; 2926 int nwords = size / sizeof (uint64_t); 2927 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2928 int i, j; 2929 char *hdr, *c; 2930 2931 2932 if (do_bswap) 2933 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2934 else 2935 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2936 2937 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2938 2939 for (i = 0; i < nwords; i += 2) { 2940 (void) printf("%06llx: %016llx %016llx ", 2941 (u_longlong_t)(i * sizeof (uint64_t)), 2942 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2943 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2944 2945 c = (char *)&d[i]; 2946 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2947 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2948 (void) printf("\n"); 2949 } 2950 } 2951 2952 /* 2953 * There are two acceptable formats: 2954 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2955 * child[.child]* - For example: 0.1.1 2956 * 2957 * The second form can be used to specify arbitrary vdevs anywhere 2958 * in the heirarchy. For example, in a pool with a mirror of 2959 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2960 */ 2961 static vdev_t * 2962 zdb_vdev_lookup(vdev_t *vdev, char *path) 2963 { 2964 char *s, *p, *q; 2965 int i; 2966 2967 if (vdev == NULL) 2968 return (NULL); 2969 2970 /* First, assume the x.x.x.x format */ 2971 i = (int)strtoul(path, &s, 10); 2972 if (s == path || (s && *s != '.' && *s != '\0')) 2973 goto name; 2974 if (i < 0 || i >= vdev->vdev_children) 2975 return (NULL); 2976 2977 vdev = vdev->vdev_child[i]; 2978 if (*s == '\0') 2979 return (vdev); 2980 return (zdb_vdev_lookup(vdev, s+1)); 2981 2982 name: 2983 for (i = 0; i < vdev->vdev_children; i++) { 2984 vdev_t *vc = vdev->vdev_child[i]; 2985 2986 if (vc->vdev_path == NULL) { 2987 vc = zdb_vdev_lookup(vc, path); 2988 if (vc == NULL) 2989 continue; 2990 else 2991 return (vc); 2992 } 2993 2994 p = strrchr(vc->vdev_path, '/'); 2995 p = p ? p + 1 : vc->vdev_path; 2996 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2997 2998 if (strcmp(vc->vdev_path, path) == 0) 2999 return (vc); 3000 if (strcmp(p, path) == 0) 3001 return (vc); 3002 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3003 return (vc); 3004 } 3005 3006 return (NULL); 3007 } 3008 3009 /* 3010 * Read a block from a pool and print it out. The syntax of the 3011 * block descriptor is: 3012 * 3013 * pool:vdev_specifier:offset:size[:flags] 3014 * 3015 * pool - The name of the pool you wish to read from 3016 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3017 * offset - offset, in hex, in bytes 3018 * size - Amount of data to read, in hex, in bytes 3019 * flags - A string of characters specifying options 3020 * b: Decode a blkptr at given offset within block 3021 * *c: Calculate and display checksums 3022 * d: Decompress data before dumping 3023 * e: Byteswap data before dumping 3024 * g: Display data as a gang block header 3025 * i: Display as an indirect block 3026 * p: Do I/O to physical offset 3027 * r: Dump raw data to stdout 3028 * 3029 * * = not yet implemented 3030 */ 3031 static void 3032 zdb_read_block(char *thing, spa_t *spa) 3033 { 3034 blkptr_t blk, *bp = &blk; 3035 dva_t *dva = bp->blk_dva; 3036 int flags = 0; 3037 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3038 zio_t *zio; 3039 vdev_t *vd; 3040 void *pbuf, *lbuf, *buf; 3041 char *s, *p, *dup, *vdev, *flagstr; 3042 int i, error; 3043 3044 dup = strdup(thing); 3045 s = strtok(dup, ":"); 3046 vdev = s ? s : ""; 3047 s = strtok(NULL, ":"); 3048 offset = strtoull(s ? s : "", NULL, 16); 3049 s = strtok(NULL, ":"); 3050 size = strtoull(s ? s : "", NULL, 16); 3051 s = strtok(NULL, ":"); 3052 flagstr = s ? s : ""; 3053 3054 s = NULL; 3055 if (size == 0) 3056 s = "size must not be zero"; 3057 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3058 s = "size must be a multiple of sector size"; 3059 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3060 s = "offset must be a multiple of sector size"; 3061 if (s) { 3062 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3063 free(dup); 3064 return; 3065 } 3066 3067 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3068 for (i = 0; flagstr[i]; i++) { 3069 int bit = flagbits[(uchar_t)flagstr[i]]; 3070 3071 if (bit == 0) { 3072 (void) printf("***Invalid flag: %c\n", 3073 flagstr[i]); 3074 continue; 3075 } 3076 flags |= bit; 3077 3078 /* If it's not something with an argument, keep going */ 3079 if ((bit & (ZDB_FLAG_CHECKSUM | 3080 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3081 continue; 3082 3083 p = &flagstr[i + 1]; 3084 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3085 blkptr_offset = strtoull(p, &p, 16); 3086 if (*p != ':' && *p != '\0') { 3087 (void) printf("***Invalid flag arg: '%s'\n", s); 3088 free(dup); 3089 return; 3090 } 3091 } 3092 } 3093 3094 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3095 if (vd == NULL) { 3096 (void) printf("***Invalid vdev: %s\n", vdev); 3097 free(dup); 3098 return; 3099 } else { 3100 if (vd->vdev_path) 3101 (void) fprintf(stderr, "Found vdev: %s\n", 3102 vd->vdev_path); 3103 else 3104 (void) fprintf(stderr, "Found vdev type: %s\n", 3105 vd->vdev_ops->vdev_op_type); 3106 } 3107 3108 psize = size; 3109 lsize = size; 3110 3111 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3112 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3113 3114 BP_ZERO(bp); 3115 3116 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3117 DVA_SET_OFFSET(&dva[0], offset); 3118 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3119 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3120 3121 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3122 3123 BP_SET_LSIZE(bp, lsize); 3124 BP_SET_PSIZE(bp, psize); 3125 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3126 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3127 BP_SET_TYPE(bp, DMU_OT_NONE); 3128 BP_SET_LEVEL(bp, 0); 3129 BP_SET_DEDUP(bp, 0); 3130 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3131 3132 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3133 zio = zio_root(spa, NULL, NULL, 0); 3134 3135 if (vd == vd->vdev_top) { 3136 /* 3137 * Treat this as a normal block read. 3138 */ 3139 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3140 ZIO_PRIORITY_SYNC_READ, 3141 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3142 } else { 3143 /* 3144 * Treat this as a vdev child I/O. 3145 */ 3146 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3147 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3148 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3149 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3150 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3151 } 3152 3153 error = zio_wait(zio); 3154 spa_config_exit(spa, SCL_STATE, FTAG); 3155 3156 if (error) { 3157 (void) printf("Read of %s failed, error: %d\n", thing, error); 3158 goto out; 3159 } 3160 3161 if (flags & ZDB_FLAG_DECOMPRESS) { 3162 /* 3163 * We don't know how the data was compressed, so just try 3164 * every decompress function at every inflated blocksize. 3165 */ 3166 enum zio_compress c; 3167 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3168 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3169 3170 bcopy(pbuf, pbuf2, psize); 3171 3172 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3173 SPA_MAXBLOCKSIZE - psize) == 0); 3174 3175 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3176 SPA_MAXBLOCKSIZE - psize) == 0); 3177 3178 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3179 lsize -= SPA_MINBLOCKSIZE) { 3180 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3181 if (zio_decompress_data(c, pbuf, lbuf, 3182 psize, lsize) == 0 && 3183 zio_decompress_data(c, pbuf2, lbuf2, 3184 psize, lsize) == 0 && 3185 bcmp(lbuf, lbuf2, lsize) == 0) 3186 break; 3187 } 3188 if (c != ZIO_COMPRESS_FUNCTIONS) 3189 break; 3190 lsize -= SPA_MINBLOCKSIZE; 3191 } 3192 3193 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3194 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3195 3196 if (lsize <= psize) { 3197 (void) printf("Decompress of %s failed\n", thing); 3198 goto out; 3199 } 3200 buf = lbuf; 3201 size = lsize; 3202 } else { 3203 buf = pbuf; 3204 size = psize; 3205 } 3206 3207 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3208 zdb_print_blkptr((blkptr_t *)(void *) 3209 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3210 else if (flags & ZDB_FLAG_RAW) 3211 zdb_dump_block_raw(buf, size, flags); 3212 else if (flags & ZDB_FLAG_INDIRECT) 3213 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3214 flags); 3215 else if (flags & ZDB_FLAG_GBH) 3216 zdb_dump_gbh(buf, flags); 3217 else 3218 zdb_dump_block(thing, buf, size, flags); 3219 3220 out: 3221 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3222 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3223 free(dup); 3224 } 3225 3226 static boolean_t 3227 pool_match(nvlist_t *cfg, char *tgt) 3228 { 3229 uint64_t v, guid = strtoull(tgt, NULL, 0); 3230 char *s; 3231 3232 if (guid != 0) { 3233 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3234 return (v == guid); 3235 } else { 3236 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3237 return (strcmp(s, tgt) == 0); 3238 } 3239 return (B_FALSE); 3240 } 3241 3242 static char * 3243 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3244 { 3245 nvlist_t *pools; 3246 nvlist_t *match = NULL; 3247 char *name = NULL; 3248 char *sepp = NULL; 3249 char sep; 3250 int count = 0; 3251 importargs_t args = { 0 }; 3252 3253 args.paths = dirc; 3254 args.path = dirv; 3255 args.can_be_active = B_TRUE; 3256 3257 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3258 sep = *sepp; 3259 *sepp = '\0'; 3260 } 3261 3262 pools = zpool_search_import(g_zfs, &args); 3263 3264 if (pools != NULL) { 3265 nvpair_t *elem = NULL; 3266 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3267 verify(nvpair_value_nvlist(elem, configp) == 0); 3268 if (pool_match(*configp, *target)) { 3269 count++; 3270 if (match != NULL) { 3271 /* print previously found config */ 3272 if (name != NULL) { 3273 (void) printf("%s\n", name); 3274 dump_nvlist(match, 8); 3275 name = NULL; 3276 } 3277 (void) printf("%s\n", 3278 nvpair_name(elem)); 3279 dump_nvlist(*configp, 8); 3280 } else { 3281 match = *configp; 3282 name = nvpair_name(elem); 3283 } 3284 } 3285 } 3286 } 3287 if (count > 1) 3288 (void) fatal("\tMatched %d pools - use pool GUID " 3289 "instead of pool name or \n" 3290 "\tpool name part of a dataset name to select pool", count); 3291 3292 if (sepp) 3293 *sepp = sep; 3294 /* 3295 * If pool GUID was specified for pool id, replace it with pool name 3296 */ 3297 if (name && (strstr(*target, name) != *target)) { 3298 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3299 3300 *target = umem_alloc(sz, UMEM_NOFAIL); 3301 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3302 } 3303 3304 *configp = name ? match : NULL; 3305 3306 return (name); 3307 } 3308 3309 int 3310 main(int argc, char **argv) 3311 { 3312 int i, c; 3313 struct rlimit rl = { 1024, 1024 }; 3314 spa_t *spa = NULL; 3315 objset_t *os = NULL; 3316 int dump_all = 1; 3317 int verbose = 0; 3318 int error = 0; 3319 char **searchdirs = NULL; 3320 int nsearch = 0; 3321 char *target; 3322 nvlist_t *policy = NULL; 3323 uint64_t max_txg = UINT64_MAX; 3324 int rewind = ZPOOL_NEVER_REWIND; 3325 3326 (void) setrlimit(RLIMIT_NOFILE, &rl); 3327 (void) enable_extended_FILE_stdio(-1, -1); 3328 3329 dprintf_setup(&argc, argv); 3330 3331 while ((c = getopt(argc, argv, 3332 "bcdhilmM:suCDRSAFLXx:evp:t:U:P")) != -1) { 3333 switch (c) { 3334 case 'b': 3335 case 'c': 3336 case 'd': 3337 case 'h': 3338 case 'i': 3339 case 'l': 3340 case 'm': 3341 case 's': 3342 case 'u': 3343 case 'C': 3344 case 'D': 3345 case 'R': 3346 case 'S': 3347 dump_opt[c]++; 3348 dump_all = 0; 3349 break; 3350 case 'A': 3351 case 'F': 3352 case 'L': 3353 case 'X': 3354 case 'e': 3355 case 'P': 3356 dump_opt[c]++; 3357 break; 3358 case 'v': 3359 verbose++; 3360 break; 3361 case 'M': 3362 max_inflight = strtoull(optarg, NULL, 0); 3363 if (max_inflight == 0) { 3364 (void) fprintf(stderr, "maximum number " 3365 "of inflight I/Os must be greater " 3366 "than 0\n"); 3367 usage(); 3368 } 3369 break; 3370 case 'p': 3371 if (searchdirs == NULL) { 3372 searchdirs = umem_alloc(sizeof (char *), 3373 UMEM_NOFAIL); 3374 } else { 3375 char **tmp = umem_alloc((nsearch + 1) * 3376 sizeof (char *), UMEM_NOFAIL); 3377 bcopy(searchdirs, tmp, nsearch * 3378 sizeof (char *)); 3379 umem_free(searchdirs, 3380 nsearch * sizeof (char *)); 3381 searchdirs = tmp; 3382 } 3383 searchdirs[nsearch++] = optarg; 3384 break; 3385 case 'x': 3386 vn_dumpdir = optarg; 3387 break; 3388 case 't': 3389 max_txg = strtoull(optarg, NULL, 0); 3390 if (max_txg < TXG_INITIAL) { 3391 (void) fprintf(stderr, "incorrect txg " 3392 "specified: %s\n", optarg); 3393 usage(); 3394 } 3395 break; 3396 case 'U': 3397 spa_config_path = optarg; 3398 break; 3399 default: 3400 usage(); 3401 break; 3402 } 3403 } 3404 3405 if (!dump_opt['e'] && searchdirs != NULL) { 3406 (void) fprintf(stderr, "-p option requires use of -e\n"); 3407 usage(); 3408 } 3409 3410 kernel_init(FREAD); 3411 g_zfs = libzfs_init(); 3412 ASSERT(g_zfs != NULL); 3413 3414 if (dump_all) 3415 verbose = MAX(verbose, 1); 3416 3417 for (c = 0; c < 256; c++) { 3418 if (dump_all && !strchr("elAFLRSXP", c)) 3419 dump_opt[c] = 1; 3420 if (dump_opt[c]) 3421 dump_opt[c] += verbose; 3422 } 3423 3424 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3425 zfs_recover = (dump_opt['A'] > 1); 3426 3427 argc -= optind; 3428 argv += optind; 3429 3430 if (argc < 2 && dump_opt['R']) 3431 usage(); 3432 if (argc < 1) { 3433 if (!dump_opt['e'] && dump_opt['C']) { 3434 dump_cachefile(spa_config_path); 3435 return (0); 3436 } 3437 usage(); 3438 } 3439 3440 if (dump_opt['l']) { 3441 dump_label(argv[0]); 3442 return (0); 3443 } 3444 3445 if (dump_opt['X'] || dump_opt['F']) 3446 rewind = ZPOOL_DO_REWIND | 3447 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3448 3449 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3450 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3451 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3452 fatal("internal error: %s", strerror(ENOMEM)); 3453 3454 error = 0; 3455 target = argv[0]; 3456 3457 if (dump_opt['e']) { 3458 nvlist_t *cfg = NULL; 3459 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3460 3461 error = ENOENT; 3462 if (name) { 3463 if (dump_opt['C'] > 1) { 3464 (void) printf("\nConfiguration for import:\n"); 3465 dump_nvlist(cfg, 8); 3466 } 3467 if (nvlist_add_nvlist(cfg, 3468 ZPOOL_REWIND_POLICY, policy) != 0) { 3469 fatal("can't open '%s': %s", 3470 target, strerror(ENOMEM)); 3471 } 3472 if ((error = spa_import(name, cfg, NULL, 3473 ZFS_IMPORT_MISSING_LOG)) != 0) { 3474 error = spa_import(name, cfg, NULL, 3475 ZFS_IMPORT_VERBATIM); 3476 } 3477 } 3478 } 3479 3480 if (error == 0) { 3481 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3482 error = spa_open_rewind(target, &spa, FTAG, policy, 3483 NULL); 3484 if (error) { 3485 /* 3486 * If we're missing the log device then 3487 * try opening the pool after clearing the 3488 * log state. 3489 */ 3490 mutex_enter(&spa_namespace_lock); 3491 if ((spa = spa_lookup(target)) != NULL && 3492 spa->spa_log_state == SPA_LOG_MISSING) { 3493 spa->spa_log_state = SPA_LOG_CLEAR; 3494 error = 0; 3495 } 3496 mutex_exit(&spa_namespace_lock); 3497 3498 if (!error) { 3499 error = spa_open_rewind(target, &spa, 3500 FTAG, policy, NULL); 3501 } 3502 } 3503 } else { 3504 error = dmu_objset_own(target, DMU_OST_ANY, 3505 B_TRUE, FTAG, &os); 3506 } 3507 } 3508 nvlist_free(policy); 3509 3510 if (error) 3511 fatal("can't open '%s': %s", target, strerror(error)); 3512 3513 argv++; 3514 argc--; 3515 if (!dump_opt['R']) { 3516 if (argc > 0) { 3517 zopt_objects = argc; 3518 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3519 for (i = 0; i < zopt_objects; i++) { 3520 errno = 0; 3521 zopt_object[i] = strtoull(argv[i], NULL, 0); 3522 if (zopt_object[i] == 0 && errno != 0) 3523 fatal("bad number %s: %s", 3524 argv[i], strerror(errno)); 3525 } 3526 } 3527 if (os != NULL) { 3528 dump_dir(os); 3529 } else if (zopt_objects > 0 && !dump_opt['m']) { 3530 dump_dir(spa->spa_meta_objset); 3531 } else { 3532 dump_zpool(spa); 3533 } 3534 } else { 3535 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3536 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3537 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3538 flagbits['e'] = ZDB_FLAG_BSWAP; 3539 flagbits['g'] = ZDB_FLAG_GBH; 3540 flagbits['i'] = ZDB_FLAG_INDIRECT; 3541 flagbits['p'] = ZDB_FLAG_PHYS; 3542 flagbits['r'] = ZDB_FLAG_RAW; 3543 3544 for (i = 0; i < argc; i++) 3545 zdb_read_block(argv[i], spa); 3546 } 3547 3548 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3549 3550 fuid_table_destroy(); 3551 sa_loaded = B_FALSE; 3552 3553 libzfs_fini(g_zfs); 3554 kernel_fini(); 3555 3556 return (0); 3557 } 3558