1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 22*1ab7f2deSmaybee * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 27fa9e4066Sahrens 28fa9e4066Sahrens #include <mdb/mdb_ctf.h> 29fa9e4066Sahrens #include <sys/zfs_context.h> 30fa9e4066Sahrens #include <sys/mdb_modapi.h> 31fa9e4066Sahrens #include <sys/dbuf.h> 32fa9e4066Sahrens #include <sys/dmu_objset.h> 33fa9e4066Sahrens #include <sys/dsl_dir.h> 34fa9e4066Sahrens #include <sys/dsl_pool.h> 35fa9e4066Sahrens #include <sys/metaslab_impl.h> 36fa9e4066Sahrens #include <sys/space_map.h> 37fa9e4066Sahrens #include <sys/list.h> 38fa9e4066Sahrens #include <sys/spa_impl.h> 39fa9e4066Sahrens #include <sys/vdev_impl.h> 40fa9e4066Sahrens #include <sys/zio_compress.h> 41fa9e4066Sahrens 42fa9e4066Sahrens #ifndef _KERNEL 43fa9e4066Sahrens #include "../genunix/list.h" 44fa9e4066Sahrens #endif 45fa9e4066Sahrens 46fa9e4066Sahrens #ifdef _KERNEL 47fa9e4066Sahrens #define ZFS_OBJ_NAME "zfs" 48fa9e4066Sahrens #else 49fa9e4066Sahrens #define ZFS_OBJ_NAME "libzpool.so.1" 50fa9e4066Sahrens #endif 51fa9e4066Sahrens 52fa9e4066Sahrens static char * 53fa9e4066Sahrens local_strdup(const char *s) 54fa9e4066Sahrens { 55fa9e4066Sahrens char *s1 = mdb_alloc(strlen(s) + 1, UM_SLEEP); 56fa9e4066Sahrens 57fa9e4066Sahrens (void) strcpy(s1, s); 58fa9e4066Sahrens return (s1); 59fa9e4066Sahrens } 60fa9e4066Sahrens 61fa9e4066Sahrens static int 62fa9e4066Sahrens getmember(uintptr_t addr, const char *type, mdb_ctf_id_t *idp, 63fa9e4066Sahrens const char *member, int len, void *buf) 64fa9e4066Sahrens { 65fa9e4066Sahrens mdb_ctf_id_t id; 66fa9e4066Sahrens ulong_t off; 67fa9e4066Sahrens char name[64]; 68fa9e4066Sahrens 69fa9e4066Sahrens if (idp == NULL) { 70fa9e4066Sahrens if (mdb_ctf_lookup_by_name(type, &id) == -1) { 71fa9e4066Sahrens mdb_warn("couldn't find type %s", type); 72fa9e4066Sahrens return (DCMD_ERR); 73fa9e4066Sahrens } 74fa9e4066Sahrens idp = &id; 75fa9e4066Sahrens } else { 76fa9e4066Sahrens type = name; 77fa9e4066Sahrens mdb_ctf_type_name(*idp, name, sizeof (name)); 78fa9e4066Sahrens } 79fa9e4066Sahrens 80fa9e4066Sahrens if (mdb_ctf_offsetof(*idp, member, &off) == -1) { 81fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, type); 82fa9e4066Sahrens return (DCMD_ERR); 83fa9e4066Sahrens } 84fa9e4066Sahrens if (off % 8 != 0) { 85fa9e4066Sahrens mdb_warn("member %s of type %s is unsupported bitfield", 86fa9e4066Sahrens member, type); 87fa9e4066Sahrens return (DCMD_ERR); 88fa9e4066Sahrens } 89fa9e4066Sahrens off /= 8; 90fa9e4066Sahrens 91fa9e4066Sahrens if (mdb_vread(buf, len, addr + off) == -1) { 92fa9e4066Sahrens mdb_warn("failed to read %s from %s at %p", 93fa9e4066Sahrens member, type, addr + off); 94fa9e4066Sahrens return (DCMD_ERR); 95fa9e4066Sahrens } 96fa9e4066Sahrens /* mdb_warn("read %s from %s at %p+%llx\n", member, type, addr, off); */ 97fa9e4066Sahrens 98fa9e4066Sahrens return (0); 99fa9e4066Sahrens } 100fa9e4066Sahrens 101fa9e4066Sahrens #define GETMEMB(addr, type, member, dest) \ 102fa9e4066Sahrens getmember(addr, #type, NULL, #member, sizeof (dest), &(dest)) 103fa9e4066Sahrens 104fa9e4066Sahrens #define GETMEMBID(addr, ctfid, member, dest) \ 105fa9e4066Sahrens getmember(addr, NULL, ctfid, #member, sizeof (dest), &(dest)) 106fa9e4066Sahrens 107fa9e4066Sahrens static int 108fa9e4066Sahrens getrefcount(uintptr_t addr, mdb_ctf_id_t *id, 109fa9e4066Sahrens const char *member, uint64_t *rc) 110fa9e4066Sahrens { 111fa9e4066Sahrens static int gotid; 112fa9e4066Sahrens static mdb_ctf_id_t rc_id; 113fa9e4066Sahrens ulong_t off; 114fa9e4066Sahrens 115fa9e4066Sahrens if (!gotid) { 116fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) { 117fa9e4066Sahrens mdb_warn("couldn't find struct refcount"); 118fa9e4066Sahrens return (DCMD_ERR); 119fa9e4066Sahrens } 120fa9e4066Sahrens gotid = TRUE; 121fa9e4066Sahrens } 122fa9e4066Sahrens 123fa9e4066Sahrens if (mdb_ctf_offsetof(*id, member, &off) == -1) { 124fa9e4066Sahrens char name[64]; 125fa9e4066Sahrens mdb_ctf_type_name(*id, name, sizeof (name)); 126fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, name); 127fa9e4066Sahrens return (DCMD_ERR); 128fa9e4066Sahrens } 129fa9e4066Sahrens off /= 8; 130fa9e4066Sahrens 131fa9e4066Sahrens return (GETMEMBID(addr + off, &rc_id, rc_count, *rc)); 132fa9e4066Sahrens } 133fa9e4066Sahrens 134fa9e4066Sahrens static int 135fa9e4066Sahrens read_symbol(char *sym_name, void **bufp) 136fa9e4066Sahrens { 137fa9e4066Sahrens GElf_Sym sym; 138fa9e4066Sahrens 139fa9e4066Sahrens if (mdb_lookup_by_obj(MDB_TGT_OBJ_EVERY, sym_name, &sym)) { 140fa9e4066Sahrens mdb_warn("can't find symbol %s", sym_name); 141fa9e4066Sahrens return (DCMD_ERR); 142fa9e4066Sahrens } 143fa9e4066Sahrens 144fa9e4066Sahrens *bufp = mdb_alloc(sym.st_size, UM_SLEEP); 145fa9e4066Sahrens 146fa9e4066Sahrens if (mdb_vread(*bufp, sym.st_size, sym.st_value) == -1) { 147fa9e4066Sahrens mdb_warn("can't read data for symbol %s", sym_name); 148fa9e4066Sahrens mdb_free(*bufp, sym.st_size); 149fa9e4066Sahrens return (DCMD_ERR); 150fa9e4066Sahrens } 151fa9e4066Sahrens 152fa9e4066Sahrens return (DCMD_OK); 153fa9e4066Sahrens } 154fa9e4066Sahrens 155fa9e4066Sahrens static int verbose; 156fa9e4066Sahrens 157fa9e4066Sahrens static int 158fa9e4066Sahrens freelist_walk_init(mdb_walk_state_t *wsp) 159fa9e4066Sahrens { 160fa9e4066Sahrens if (wsp->walk_addr == NULL) { 161fa9e4066Sahrens mdb_warn("must supply starting address\n"); 162fa9e4066Sahrens return (WALK_ERR); 163fa9e4066Sahrens } 164fa9e4066Sahrens 165fa9e4066Sahrens wsp->walk_data = 0; /* Index into the freelist */ 166fa9e4066Sahrens return (WALK_NEXT); 167fa9e4066Sahrens } 168fa9e4066Sahrens 169fa9e4066Sahrens static int 170fa9e4066Sahrens freelist_walk_step(mdb_walk_state_t *wsp) 171fa9e4066Sahrens { 172fa9e4066Sahrens uint64_t entry; 173fa9e4066Sahrens uintptr_t number = (uintptr_t)wsp->walk_data; 1748053a263Sck153898 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 1758053a263Sck153898 "INVALID", "INVALID", "INVALID", "INVALID" }; 176fa9e4066Sahrens int mapshift = SPA_MINBLOCKSHIFT; 177fa9e4066Sahrens 178fa9e4066Sahrens if (mdb_vread(&entry, sizeof (entry), wsp->walk_addr) == -1) { 179fa9e4066Sahrens mdb_warn("failed to read freelist entry %p", wsp->walk_addr); 180fa9e4066Sahrens return (WALK_DONE); 181fa9e4066Sahrens } 182fa9e4066Sahrens wsp->walk_addr += sizeof (entry); 183fa9e4066Sahrens wsp->walk_data = (void *)(number + 1); 184fa9e4066Sahrens 185fa9e4066Sahrens if (SM_DEBUG_DECODE(entry)) { 186fa9e4066Sahrens mdb_printf("DEBUG: %3u %10s: txg=%llu pass=%llu\n", 187fa9e4066Sahrens number, 188fa9e4066Sahrens ddata[SM_DEBUG_ACTION_DECODE(entry)], 189fa9e4066Sahrens SM_DEBUG_TXG_DECODE(entry), 190fa9e4066Sahrens SM_DEBUG_SYNCPASS_DECODE(entry)); 191fa9e4066Sahrens } else { 192fa9e4066Sahrens mdb_printf("Entry: %3u offsets=%08llx-%08llx type=%c " 193fa9e4066Sahrens "size=%06llx", number, 194fa9e4066Sahrens SM_OFFSET_DECODE(entry) << mapshift, 195fa9e4066Sahrens (SM_OFFSET_DECODE(entry) + SM_RUN_DECODE(entry)) << 196fa9e4066Sahrens mapshift, 197fa9e4066Sahrens SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 198fa9e4066Sahrens SM_RUN_DECODE(entry) << mapshift); 199fa9e4066Sahrens if (verbose) 200fa9e4066Sahrens mdb_printf(" (raw=%012llx)\n", entry); 201fa9e4066Sahrens mdb_printf("\n"); 202fa9e4066Sahrens } 203fa9e4066Sahrens return (WALK_NEXT); 204fa9e4066Sahrens } 205fa9e4066Sahrens 206fa9e4066Sahrens 207fa9e4066Sahrens static int 208fa9e4066Sahrens dataset_name(uintptr_t addr, char *buf) 209fa9e4066Sahrens { 210fa9e4066Sahrens static int gotid; 211fa9e4066Sahrens static mdb_ctf_id_t dd_id; 212fa9e4066Sahrens uintptr_t dd_parent; 213fa9e4066Sahrens char dd_myname[MAXNAMELEN]; 214fa9e4066Sahrens 215fa9e4066Sahrens if (!gotid) { 216fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dir", 217fa9e4066Sahrens &dd_id) == -1) { 218fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dir"); 219fa9e4066Sahrens return (DCMD_ERR); 220fa9e4066Sahrens } 221fa9e4066Sahrens gotid = TRUE; 222fa9e4066Sahrens } 223fa9e4066Sahrens if (GETMEMBID(addr, &dd_id, dd_parent, dd_parent) || 224fa9e4066Sahrens GETMEMBID(addr, &dd_id, dd_myname, dd_myname)) { 225fa9e4066Sahrens return (DCMD_ERR); 226fa9e4066Sahrens } 227fa9e4066Sahrens 228fa9e4066Sahrens if (dd_parent) { 229fa9e4066Sahrens if (dataset_name(dd_parent, buf)) 230fa9e4066Sahrens return (DCMD_ERR); 231fa9e4066Sahrens strcat(buf, "/"); 232fa9e4066Sahrens } 233fa9e4066Sahrens 234fa9e4066Sahrens if (dd_myname[0]) 235fa9e4066Sahrens strcat(buf, dd_myname); 236fa9e4066Sahrens else 237fa9e4066Sahrens strcat(buf, "???"); 238fa9e4066Sahrens 239fa9e4066Sahrens return (0); 240fa9e4066Sahrens } 241fa9e4066Sahrens 242fa9e4066Sahrens static int 243fa9e4066Sahrens objset_name(uintptr_t addr, char *buf) 244fa9e4066Sahrens { 245fa9e4066Sahrens static int gotid; 246fa9e4066Sahrens static mdb_ctf_id_t osi_id, ds_id; 247fa9e4066Sahrens uintptr_t os_dsl_dataset; 248fa9e4066Sahrens char ds_snapname[MAXNAMELEN]; 249fa9e4066Sahrens uintptr_t ds_dir; 250fa9e4066Sahrens 251fa9e4066Sahrens buf[0] = '\0'; 252fa9e4066Sahrens 253fa9e4066Sahrens if (!gotid) { 254fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct objset_impl", 255fa9e4066Sahrens &osi_id) == -1) { 256fa9e4066Sahrens mdb_warn("couldn't find struct objset_impl"); 257fa9e4066Sahrens return (DCMD_ERR); 258fa9e4066Sahrens } 259fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dataset", 260fa9e4066Sahrens &ds_id) == -1) { 261fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dataset"); 262fa9e4066Sahrens return (DCMD_ERR); 263fa9e4066Sahrens } 264fa9e4066Sahrens 265fa9e4066Sahrens gotid = TRUE; 266fa9e4066Sahrens } 267fa9e4066Sahrens 268fa9e4066Sahrens if (GETMEMBID(addr, &osi_id, os_dsl_dataset, os_dsl_dataset)) 269fa9e4066Sahrens return (DCMD_ERR); 270fa9e4066Sahrens 271fa9e4066Sahrens if (os_dsl_dataset == 0) { 272fa9e4066Sahrens strcat(buf, "mos"); 273fa9e4066Sahrens return (0); 274fa9e4066Sahrens } 275fa9e4066Sahrens 276fa9e4066Sahrens if (GETMEMBID(os_dsl_dataset, &ds_id, ds_snapname, ds_snapname) || 277fa9e4066Sahrens GETMEMBID(os_dsl_dataset, &ds_id, ds_dir, ds_dir)) { 278fa9e4066Sahrens return (DCMD_ERR); 279fa9e4066Sahrens } 280fa9e4066Sahrens 281fa9e4066Sahrens if (ds_dir && dataset_name(ds_dir, buf)) 282fa9e4066Sahrens return (DCMD_ERR); 283fa9e4066Sahrens 284fa9e4066Sahrens if (ds_snapname[0]) { 285fa9e4066Sahrens strcat(buf, "@"); 286fa9e4066Sahrens strcat(buf, ds_snapname); 287fa9e4066Sahrens } 288fa9e4066Sahrens return (0); 289fa9e4066Sahrens } 290fa9e4066Sahrens 291fa9e4066Sahrens static void 292fa9e4066Sahrens enum_lookup(char *out, size_t size, mdb_ctf_id_t id, int val, 293fa9e4066Sahrens const char *prefix) 294fa9e4066Sahrens { 295fa9e4066Sahrens const char *cp; 296fa9e4066Sahrens size_t len = strlen(prefix); 297fa9e4066Sahrens 298fa9e4066Sahrens if ((cp = mdb_ctf_enum_name(id, val)) != NULL) { 299fa9e4066Sahrens if (strncmp(cp, prefix, len) == 0) 300fa9e4066Sahrens cp += len; 301fa9e4066Sahrens (void) strncpy(out, cp, size); 302fa9e4066Sahrens } else { 303fa9e4066Sahrens mdb_snprintf(out, size, "? (%d)", val); 304fa9e4066Sahrens } 305fa9e4066Sahrens } 306fa9e4066Sahrens 307fa9e4066Sahrens /* ARGSUSED */ 308fa9e4066Sahrens static int 309fa9e4066Sahrens zio_pipeline(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 310fa9e4066Sahrens { 311fa9e4066Sahrens mdb_ctf_id_t pipe_enum; 312fa9e4066Sahrens int i; 313fa9e4066Sahrens char stage[1024]; 314fa9e4066Sahrens 315fa9e4066Sahrens if (mdb_ctf_lookup_by_name("enum zio_stage", &pipe_enum) == -1) { 316fa9e4066Sahrens mdb_warn("Could not find enum zio_stage"); 317fa9e4066Sahrens return (DCMD_ERR); 318fa9e4066Sahrens } 319fa9e4066Sahrens 320fa9e4066Sahrens for (i = 0; i < 32; i++) { 321fa9e4066Sahrens if (addr & (1U << i)) { 322fa9e4066Sahrens enum_lookup(stage, sizeof (stage), pipe_enum, i, 323fa9e4066Sahrens "ZIO_STAGE_"); 324fa9e4066Sahrens mdb_printf(" %s\n", stage); 325fa9e4066Sahrens } 326fa9e4066Sahrens } 327fa9e4066Sahrens 328fa9e4066Sahrens return (DCMD_OK); 329fa9e4066Sahrens } 330fa9e4066Sahrens 331fa9e4066Sahrens /* ARGSUSED */ 332fa9e4066Sahrens static int 333614409b5Sahrens zfs_params(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 334614409b5Sahrens { 335614409b5Sahrens /* 336614409b5Sahrens * This table can be approximately generated by running: 337614409b5Sahrens * egrep "^[a-z0-9_]+ [a-z0-9_]+( =.*)?;" *.c | cut -d ' ' -f 2 338614409b5Sahrens */ 339614409b5Sahrens static const char *params[] = { 340614409b5Sahrens "arc_reduce_dnlc_percent", 341614409b5Sahrens "zfs_arc_max", 342614409b5Sahrens "zfs_arc_min", 34349e3519aSmaybee "arc_shrink_shift", 344614409b5Sahrens "zfs_mdcomp_disable", 345614409b5Sahrens "zfs_prefetch_disable", 346614409b5Sahrens "zfetch_max_streams", 347614409b5Sahrens "zfetch_min_sec_reap", 348614409b5Sahrens "zfetch_block_cap", 349614409b5Sahrens "zfetch_array_rd_sz", 350614409b5Sahrens "zfs_default_bs", 351614409b5Sahrens "zfs_default_ibs", 352614409b5Sahrens "metaslab_aliquot", 353614409b5Sahrens "reference_tracking_enable", 354614409b5Sahrens "reference_history", 355614409b5Sahrens "zio_taskq_threads", 356614409b5Sahrens "spa_max_replication_override", 357614409b5Sahrens "spa_mode", 358614409b5Sahrens "zfs_flags", 359*1ab7f2deSmaybee "zfs_txg_synctime", 360*1ab7f2deSmaybee "zfs_txg_timeout", 361*1ab7f2deSmaybee "zfs_write_limit_min", 362*1ab7f2deSmaybee "zfs_write_limit_max", 363*1ab7f2deSmaybee "zfs_write_limit_shift", 364*1ab7f2deSmaybee "zfs_write_limit_override", 365*1ab7f2deSmaybee "zfs_no_write_throttle", 366614409b5Sahrens "zfs_vdev_cache_max", 367614409b5Sahrens "zfs_vdev_cache_size", 368614409b5Sahrens "zfs_vdev_cache_bshift", 369614409b5Sahrens "vdev_mirror_shift", 370614409b5Sahrens "zfs_vdev_max_pending", 371614409b5Sahrens "zfs_vdev_min_pending", 372614409b5Sahrens "zfs_scrub_limit", 373614409b5Sahrens "zfs_vdev_time_shift", 374614409b5Sahrens "zfs_vdev_ramp_rate", 375614409b5Sahrens "zfs_vdev_aggregation_limit", 376614409b5Sahrens "fzap_default_block_shift", 377614409b5Sahrens "zfs_immediate_write_sz", 378614409b5Sahrens "zfs_read_chunk_size", 379614409b5Sahrens "zil_disable", 380614409b5Sahrens "zfs_nocacheflush", 381*1ab7f2deSmaybee "metaslab_gang_bang", 382614409b5Sahrens "zio_injection_enabled", 383614409b5Sahrens "zvol_immediate_write_sz", 384614409b5Sahrens }; 385614409b5Sahrens int i; 386614409b5Sahrens 387614409b5Sahrens for (i = 0; i < sizeof (params) / sizeof (params[0]); i++) { 388614409b5Sahrens int sz; 389614409b5Sahrens uint64_t val64; 390614409b5Sahrens uint32_t *val32p = (uint32_t *)&val64; 391614409b5Sahrens 392614409b5Sahrens sz = mdb_readvar(&val64, params[i]); 393614409b5Sahrens if (sz == 4) { 394614409b5Sahrens mdb_printf("%s = 0x%x\n", params[i], *val32p); 395614409b5Sahrens } else if (sz == 8) { 396614409b5Sahrens mdb_printf("%s = 0x%llx\n", params[i], val64); 397614409b5Sahrens } else { 398614409b5Sahrens mdb_warn("variable %s not found", params[i]); 399614409b5Sahrens } 400614409b5Sahrens } 401614409b5Sahrens 402614409b5Sahrens return (DCMD_OK); 403614409b5Sahrens } 404614409b5Sahrens 405614409b5Sahrens /* ARGSUSED */ 406614409b5Sahrens static int 407fa9e4066Sahrens blkptr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 408fa9e4066Sahrens { 409fa9e4066Sahrens blkptr_t bp; 410fa9e4066Sahrens dmu_object_type_info_t *doti; 411fa9e4066Sahrens zio_compress_info_t *zct; 412fa9e4066Sahrens zio_checksum_info_t *zci; 413fa9e4066Sahrens int i; 414fa9e4066Sahrens char buf[MAXPATHLEN]; 415fa9e4066Sahrens 416fa9e4066Sahrens if (mdb_vread(&bp, sizeof (blkptr_t), addr) == -1) { 417fa9e4066Sahrens mdb_warn("failed to read blkptr_t"); 418fa9e4066Sahrens return (DCMD_ERR); 419fa9e4066Sahrens } 420fa9e4066Sahrens 421fa9e4066Sahrens if (read_symbol("dmu_ot", (void **)&doti) != DCMD_OK) 422fa9e4066Sahrens return (DCMD_ERR); 423fa9e4066Sahrens for (i = 0; i < DMU_OT_NUMTYPES; i++) { 424fa9e4066Sahrens mdb_readstr(buf, sizeof (buf), (uintptr_t)doti[i].ot_name); 425fa9e4066Sahrens doti[i].ot_name = local_strdup(buf); 426fa9e4066Sahrens } 427fa9e4066Sahrens 428fa9e4066Sahrens if (read_symbol("zio_checksum_table", (void **)&zci) != DCMD_OK) 429fa9e4066Sahrens return (DCMD_ERR); 430fa9e4066Sahrens for (i = 0; i < ZIO_CHECKSUM_FUNCTIONS; i++) { 431fa9e4066Sahrens mdb_readstr(buf, sizeof (buf), (uintptr_t)zci[i].ci_name); 432fa9e4066Sahrens zci[i].ci_name = local_strdup(buf); 433fa9e4066Sahrens } 434fa9e4066Sahrens 435fa9e4066Sahrens if (read_symbol("zio_compress_table", (void **)&zct) != DCMD_OK) 436fa9e4066Sahrens return (DCMD_ERR); 437fa9e4066Sahrens for (i = 0; i < ZIO_COMPRESS_FUNCTIONS; i++) { 438fa9e4066Sahrens mdb_readstr(buf, sizeof (buf), (uintptr_t)zct[i].ci_name); 439fa9e4066Sahrens zct[i].ci_name = local_strdup(buf); 440fa9e4066Sahrens } 441fa9e4066Sahrens 44244cd46caSbillm /* 44344cd46caSbillm * Super-ick warning: This code is also duplicated in 44444cd46caSbillm * cmd/zdb.c . Yeah, I hate code replication, too. 44544cd46caSbillm */ 44644cd46caSbillm for (i = 0; i < BP_GET_NDVAS(&bp); i++) { 447ecc2d604Sbonwick dva_t *dva = &bp.blk_dva[i]; 44844cd46caSbillm 44944cd46caSbillm mdb_printf("DVA[%d]: vdev_id %lld / %llx\n", i, 45044cd46caSbillm DVA_GET_VDEV(dva), DVA_GET_OFFSET(dva)); 45144cd46caSbillm mdb_printf("DVA[%d]: GANG: %-5s GRID: %04x\t" 45244cd46caSbillm "ASIZE: %llx\n", i, DVA_GET_GANG(dva) ? "TRUE" : "FALSE", 45344cd46caSbillm DVA_GET_GRID(dva), DVA_GET_ASIZE(dva)); 45444cd46caSbillm mdb_printf("DVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", i, 45544cd46caSbillm DVA_GET_VDEV(dva), DVA_GET_OFFSET(dva), BP_GET_PSIZE(&bp), 45644cd46caSbillm BP_SHOULD_BYTESWAP(&bp) ? "e" : "", 45744cd46caSbillm !DVA_GET_GANG(dva) && BP_GET_LEVEL(&bp) != 0 ? "i" : "", 45844cd46caSbillm DVA_GET_GANG(dva) ? "g" : "", 45944cd46caSbillm BP_GET_COMPRESS(&bp) != 0 ? "d" : ""); 460fa9e4066Sahrens } 461fa9e4066Sahrens mdb_printf("LSIZE: %-16llx\t\tPSIZE: %llx\n", 462fa9e4066Sahrens BP_GET_LSIZE(&bp), BP_GET_PSIZE(&bp)); 46344cd46caSbillm mdb_printf("ENDIAN: %6s\t\t\t\t\tTYPE: %s\n", 464fa9e4066Sahrens BP_GET_BYTEORDER(&bp) ? "LITTLE" : "BIG", 465fa9e4066Sahrens doti[BP_GET_TYPE(&bp)].ot_name); 466fa9e4066Sahrens mdb_printf("BIRTH: %-16llx LEVEL: %-2d\tFILL: %llx\n", 467fa9e4066Sahrens bp.blk_birth, BP_GET_LEVEL(&bp), bp.blk_fill); 468fa9e4066Sahrens mdb_printf("CKFUNC: %-16s\t\tCOMP: %s\n", 469fa9e4066Sahrens zci[BP_GET_CHECKSUM(&bp)].ci_name, 470fa9e4066Sahrens zct[BP_GET_COMPRESS(&bp)].ci_name); 471fa9e4066Sahrens mdb_printf("CKSUM: %llx:%llx:%llx:%llx\n", 472fa9e4066Sahrens bp.blk_cksum.zc_word[0], 473fa9e4066Sahrens bp.blk_cksum.zc_word[1], 474fa9e4066Sahrens bp.blk_cksum.zc_word[2], 475fa9e4066Sahrens bp.blk_cksum.zc_word[3]); 476fa9e4066Sahrens 477fa9e4066Sahrens return (DCMD_OK); 478fa9e4066Sahrens } 479fa9e4066Sahrens 480fa9e4066Sahrens /* ARGSUSED */ 481fa9e4066Sahrens static int 482fa9e4066Sahrens dbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 483fa9e4066Sahrens { 484fa9e4066Sahrens mdb_ctf_id_t id; 485fa9e4066Sahrens dmu_buf_t db; 486fa9e4066Sahrens uintptr_t objset; 487fa9e4066Sahrens uint8_t level; 488fa9e4066Sahrens uint64_t blkid; 489fa9e4066Sahrens uint64_t holds; 490fa9e4066Sahrens char objectname[32]; 491fa9e4066Sahrens char blkidname[32]; 492fa9e4066Sahrens char path[MAXNAMELEN]; 493fa9e4066Sahrens 494fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) { 495fa9e4066Sahrens mdb_printf(" addr object lvl blkid holds os\n"); 496fa9e4066Sahrens } 497fa9e4066Sahrens 498fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &id) == -1) { 499fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 500fa9e4066Sahrens return (DCMD_ERR); 501fa9e4066Sahrens } 502fa9e4066Sahrens 503fa9e4066Sahrens if (GETMEMBID(addr, &id, db_objset, objset) || 504fa9e4066Sahrens GETMEMBID(addr, &id, db, db) || 505fa9e4066Sahrens GETMEMBID(addr, &id, db_level, level) || 506fa9e4066Sahrens GETMEMBID(addr, &id, db_blkid, blkid)) { 507fa9e4066Sahrens return (WALK_ERR); 508fa9e4066Sahrens } 509fa9e4066Sahrens 510fa9e4066Sahrens if (getrefcount(addr, &id, "db_holds", &holds)) { 511fa9e4066Sahrens return (WALK_ERR); 512fa9e4066Sahrens } 513fa9e4066Sahrens 514fa9e4066Sahrens if (db.db_object == DMU_META_DNODE_OBJECT) 515fa9e4066Sahrens (void) strcpy(objectname, "mdn"); 516fa9e4066Sahrens else 517fa9e4066Sahrens (void) mdb_snprintf(objectname, sizeof (objectname), "%llx", 518fa9e4066Sahrens (u_longlong_t)db.db_object); 519fa9e4066Sahrens 520fa9e4066Sahrens if (blkid == DB_BONUS_BLKID) 521fa9e4066Sahrens (void) strcpy(blkidname, "bonus"); 522fa9e4066Sahrens else 523fa9e4066Sahrens (void) mdb_snprintf(blkidname, sizeof (blkidname), "%llx", 524fa9e4066Sahrens (u_longlong_t)blkid); 525fa9e4066Sahrens 526fa9e4066Sahrens if (objset_name(objset, path)) { 527fa9e4066Sahrens return (WALK_ERR); 528fa9e4066Sahrens } 529fa9e4066Sahrens 530fa9e4066Sahrens mdb_printf("%p %8s %1u %9s %2llu %s\n", 531fa9e4066Sahrens addr, objectname, level, blkidname, holds, path); 532fa9e4066Sahrens 533fa9e4066Sahrens return (DCMD_OK); 534fa9e4066Sahrens } 535fa9e4066Sahrens 536fa9e4066Sahrens /* ARGSUSED */ 537fa9e4066Sahrens static int 538fa9e4066Sahrens dbuf_stats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 539fa9e4066Sahrens { 540fa9e4066Sahrens #define HISTOSZ 32 541fa9e4066Sahrens uintptr_t dbp; 542fa9e4066Sahrens dmu_buf_impl_t db; 543fa9e4066Sahrens dbuf_hash_table_t ht; 544fa9e4066Sahrens uint64_t bucket, ndbufs; 545fa9e4066Sahrens uint64_t histo[HISTOSZ]; 546fa9e4066Sahrens uint64_t histo2[HISTOSZ]; 547fa9e4066Sahrens int i, maxidx; 548fa9e4066Sahrens 549fa9e4066Sahrens if (mdb_readvar(&ht, "dbuf_hash_table") == -1) { 550fa9e4066Sahrens mdb_warn("failed to read 'dbuf_hash_table'"); 551fa9e4066Sahrens return (DCMD_ERR); 552fa9e4066Sahrens } 553fa9e4066Sahrens 554fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) { 555fa9e4066Sahrens histo[i] = 0; 556fa9e4066Sahrens histo2[i] = 0; 557fa9e4066Sahrens } 558fa9e4066Sahrens 559fa9e4066Sahrens ndbufs = 0; 560fa9e4066Sahrens for (bucket = 0; bucket < ht.hash_table_mask+1; bucket++) { 561fa9e4066Sahrens int len; 562fa9e4066Sahrens 563fa9e4066Sahrens if (mdb_vread(&dbp, sizeof (void *), 564fa9e4066Sahrens (uintptr_t)(ht.hash_table+bucket)) == -1) { 565fa9e4066Sahrens mdb_warn("failed to read hash bucket %u at %p", 566fa9e4066Sahrens bucket, ht.hash_table+bucket); 567fa9e4066Sahrens return (DCMD_ERR); 568fa9e4066Sahrens } 569fa9e4066Sahrens 570fa9e4066Sahrens len = 0; 571fa9e4066Sahrens while (dbp != 0) { 572fa9e4066Sahrens if (mdb_vread(&db, sizeof (dmu_buf_impl_t), 573fa9e4066Sahrens dbp) == -1) { 574fa9e4066Sahrens mdb_warn("failed to read dbuf at %p", dbp); 575fa9e4066Sahrens return (DCMD_ERR); 576fa9e4066Sahrens } 577fa9e4066Sahrens dbp = (uintptr_t)db.db_hash_next; 578fa9e4066Sahrens for (i = MIN(len, HISTOSZ - 1); i >= 0; i--) 579fa9e4066Sahrens histo2[i]++; 580fa9e4066Sahrens len++; 581fa9e4066Sahrens ndbufs++; 582fa9e4066Sahrens } 583fa9e4066Sahrens 584fa9e4066Sahrens if (len >= HISTOSZ) 585fa9e4066Sahrens len = HISTOSZ-1; 586fa9e4066Sahrens histo[len]++; 587fa9e4066Sahrens } 588fa9e4066Sahrens 589fa9e4066Sahrens mdb_printf("hash table has %llu buckets, %llu dbufs " 590fa9e4066Sahrens "(avg %llu buckets/dbuf)\n", 591fa9e4066Sahrens ht.hash_table_mask+1, ndbufs, 592fa9e4066Sahrens (ht.hash_table_mask+1)/ndbufs); 593fa9e4066Sahrens 594fa9e4066Sahrens mdb_printf("\n"); 595fa9e4066Sahrens maxidx = 0; 596fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 597fa9e4066Sahrens if (histo[i] > 0) 598fa9e4066Sahrens maxidx = i; 599fa9e4066Sahrens mdb_printf("hash chain length number of buckets\n"); 600fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 601fa9e4066Sahrens mdb_printf("%u %llu\n", i, histo[i]); 602fa9e4066Sahrens 603fa9e4066Sahrens mdb_printf("\n"); 604fa9e4066Sahrens maxidx = 0; 605fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 606fa9e4066Sahrens if (histo2[i] > 0) 607fa9e4066Sahrens maxidx = i; 608fa9e4066Sahrens mdb_printf("hash chain depth number of dbufs\n"); 609fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 610fa9e4066Sahrens mdb_printf("%u or more %llu %llu%%\n", 611fa9e4066Sahrens i, histo2[i], histo2[i]*100/ndbufs); 612fa9e4066Sahrens 613fa9e4066Sahrens 614fa9e4066Sahrens return (DCMD_OK); 615fa9e4066Sahrens } 616fa9e4066Sahrens 617fa9e4066Sahrens typedef struct dbufs_data { 618fa9e4066Sahrens mdb_ctf_id_t id; 619fa9e4066Sahrens uint64_t objset; 620fa9e4066Sahrens uint64_t object; 621fa9e4066Sahrens uint64_t level; 622fa9e4066Sahrens uint64_t blkid; 623fa9e4066Sahrens char *osname; 624fa9e4066Sahrens } dbufs_data_t; 625fa9e4066Sahrens 626fa9e4066Sahrens #define DBUFS_UNSET (0xbaddcafedeadbeefULL) 627fa9e4066Sahrens 628fa9e4066Sahrens /* ARGSUSED */ 629fa9e4066Sahrens static int 630fa9e4066Sahrens dbufs_cb(uintptr_t addr, const void *unknown, void *arg) 631fa9e4066Sahrens { 632fa9e4066Sahrens dbufs_data_t *data = arg; 633fa9e4066Sahrens uintptr_t objset; 634fa9e4066Sahrens dmu_buf_t db; 635fa9e4066Sahrens uint8_t level; 636fa9e4066Sahrens uint64_t blkid; 637fa9e4066Sahrens char osname[MAXNAMELEN]; 638fa9e4066Sahrens 639fa9e4066Sahrens if (GETMEMBID(addr, &data->id, db_objset, objset) || 640fa9e4066Sahrens GETMEMBID(addr, &data->id, db, db) || 641fa9e4066Sahrens GETMEMBID(addr, &data->id, db_level, level) || 642fa9e4066Sahrens GETMEMBID(addr, &data->id, db_blkid, blkid)) { 643fa9e4066Sahrens return (WALK_ERR); 644fa9e4066Sahrens } 645fa9e4066Sahrens 646fa9e4066Sahrens if ((data->objset == DBUFS_UNSET || data->objset == objset) && 647fa9e4066Sahrens (data->osname == NULL || (objset_name(objset, osname) == 0 && 648fa9e4066Sahrens strcmp(data->osname, osname) == 0)) && 649fa9e4066Sahrens (data->object == DBUFS_UNSET || data->object == db.db_object) && 650fa9e4066Sahrens (data->level == DBUFS_UNSET || data->level == level) && 651fa9e4066Sahrens (data->blkid == DBUFS_UNSET || data->blkid == blkid)) { 652fa9e4066Sahrens mdb_printf("%#lr\n", addr); 653fa9e4066Sahrens } 654fa9e4066Sahrens return (WALK_NEXT); 655fa9e4066Sahrens } 656fa9e4066Sahrens 657fa9e4066Sahrens /* ARGSUSED */ 658fa9e4066Sahrens static int 659fa9e4066Sahrens dbufs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 660fa9e4066Sahrens { 661fa9e4066Sahrens dbufs_data_t data; 662fa9e4066Sahrens char *object = NULL; 663fa9e4066Sahrens char *blkid = NULL; 664fa9e4066Sahrens 665fa9e4066Sahrens data.objset = data.object = data.level = data.blkid = DBUFS_UNSET; 666fa9e4066Sahrens data.osname = NULL; 667fa9e4066Sahrens 668fa9e4066Sahrens if (mdb_getopts(argc, argv, 669fa9e4066Sahrens 'O', MDB_OPT_UINT64, &data.objset, 670fa9e4066Sahrens 'n', MDB_OPT_STR, &data.osname, 671fa9e4066Sahrens 'o', MDB_OPT_STR, &object, 672fa9e4066Sahrens 'l', MDB_OPT_UINT64, &data.level, 673fa9e4066Sahrens 'b', MDB_OPT_STR, &blkid) != argc) { 674fa9e4066Sahrens return (DCMD_USAGE); 675fa9e4066Sahrens } 676fa9e4066Sahrens 677fa9e4066Sahrens if (object) { 678fa9e4066Sahrens if (strcmp(object, "mdn") == 0) { 679fa9e4066Sahrens data.object = DMU_META_DNODE_OBJECT; 680fa9e4066Sahrens } else { 681fa9e4066Sahrens data.object = mdb_strtoull(object); 682fa9e4066Sahrens } 683fa9e4066Sahrens } 684fa9e4066Sahrens 685fa9e4066Sahrens if (blkid) { 686fa9e4066Sahrens if (strcmp(blkid, "bonus") == 0) { 687fa9e4066Sahrens data.blkid = DB_BONUS_BLKID; 688fa9e4066Sahrens } else { 689fa9e4066Sahrens data.blkid = mdb_strtoull(blkid); 690fa9e4066Sahrens } 691fa9e4066Sahrens } 692fa9e4066Sahrens 693fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &data.id) == -1) { 694fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 695fa9e4066Sahrens return (DCMD_ERR); 696fa9e4066Sahrens } 697fa9e4066Sahrens 6985f5f7a6fSahrens if (mdb_walk("dmu_buf_impl_t", dbufs_cb, &data) != 0) { 699fa9e4066Sahrens mdb_warn("can't walk dbufs"); 700fa9e4066Sahrens return (DCMD_ERR); 701fa9e4066Sahrens } 702fa9e4066Sahrens 703fa9e4066Sahrens return (DCMD_OK); 704fa9e4066Sahrens } 705fa9e4066Sahrens 706fa9e4066Sahrens typedef struct abuf_find_data { 707fa9e4066Sahrens dva_t dva; 708fa9e4066Sahrens mdb_ctf_id_t id; 709fa9e4066Sahrens } abuf_find_data_t; 710fa9e4066Sahrens 711fa9e4066Sahrens /* ARGSUSED */ 712fa9e4066Sahrens static int 713fa9e4066Sahrens abuf_find_cb(uintptr_t addr, const void *unknown, void *arg) 714fa9e4066Sahrens { 715fa9e4066Sahrens abuf_find_data_t *data = arg; 716fa9e4066Sahrens dva_t dva; 717fa9e4066Sahrens 718fa9e4066Sahrens if (GETMEMBID(addr, &data->id, b_dva, dva)) { 719fa9e4066Sahrens return (WALK_ERR); 720fa9e4066Sahrens } 721fa9e4066Sahrens 722fa9e4066Sahrens if (dva.dva_word[0] == data->dva.dva_word[0] && 723fa9e4066Sahrens dva.dva_word[1] == data->dva.dva_word[1]) { 724fa9e4066Sahrens mdb_printf("%#lr\n", addr); 725fa9e4066Sahrens } 726fa9e4066Sahrens return (WALK_NEXT); 727fa9e4066Sahrens } 728fa9e4066Sahrens 729fa9e4066Sahrens /* ARGSUSED */ 730fa9e4066Sahrens static int 731fa9e4066Sahrens abuf_find(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 732fa9e4066Sahrens { 733fa9e4066Sahrens abuf_find_data_t data; 734fa9e4066Sahrens GElf_Sym sym; 735fa9e4066Sahrens int i; 736fa9e4066Sahrens const char *syms[] = { 737a2eea2e1Sahrens "ARC_mru", 738a2eea2e1Sahrens "ARC_mru_ghost", 739a2eea2e1Sahrens "ARC_mfu", 740a2eea2e1Sahrens "ARC_mfu_ghost", 741fa9e4066Sahrens }; 742fa9e4066Sahrens 743fa9e4066Sahrens if (argc != 2) 744fa9e4066Sahrens return (DCMD_USAGE); 745fa9e4066Sahrens 746fa9e4066Sahrens for (i = 0; i < 2; i ++) { 747fa9e4066Sahrens switch (argv[i].a_type) { 748fa9e4066Sahrens case MDB_TYPE_STRING: 749fa9e4066Sahrens data.dva.dva_word[i] = mdb_strtoull(argv[i].a_un.a_str); 750fa9e4066Sahrens break; 751fa9e4066Sahrens case MDB_TYPE_IMMEDIATE: 752fa9e4066Sahrens data.dva.dva_word[i] = argv[i].a_un.a_val; 753fa9e4066Sahrens break; 754fa9e4066Sahrens default: 755fa9e4066Sahrens return (DCMD_USAGE); 756fa9e4066Sahrens } 757fa9e4066Sahrens } 758fa9e4066Sahrens 759fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct arc_buf_hdr", &data.id) == -1) { 760fa9e4066Sahrens mdb_warn("couldn't find struct arc_buf_hdr"); 761fa9e4066Sahrens return (DCMD_ERR); 762fa9e4066Sahrens } 763fa9e4066Sahrens 764fa9e4066Sahrens for (i = 0; i < sizeof (syms) / sizeof (syms[0]); i++) { 765fa9e4066Sahrens if (mdb_lookup_by_name(syms[i], &sym)) { 766fa9e4066Sahrens mdb_warn("can't find symbol %s", syms[i]); 767fa9e4066Sahrens return (DCMD_ERR); 768fa9e4066Sahrens } 769fa9e4066Sahrens 770fa9e4066Sahrens if (mdb_pwalk("list", abuf_find_cb, &data, sym.st_value) != 0) { 771fa9e4066Sahrens mdb_warn("can't walk %s", syms[i]); 772fa9e4066Sahrens return (DCMD_ERR); 773fa9e4066Sahrens } 774fa9e4066Sahrens } 775fa9e4066Sahrens 776fa9e4066Sahrens return (DCMD_OK); 777fa9e4066Sahrens } 778fa9e4066Sahrens 77944cb6abcSbmc /*ARGSUSED*/ 78044cb6abcSbmc static int 78144cb6abcSbmc arc_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 78244cb6abcSbmc { 78344cb6abcSbmc kstat_named_t *stats; 78444cb6abcSbmc GElf_Sym sym; 78591ebeef5Sahrens int nstats, i; 78644cb6abcSbmc uint_t opt_a = FALSE; 78791ebeef5Sahrens uint_t opt_b = FALSE; 78891ebeef5Sahrens uint_t shift = 0; 78991ebeef5Sahrens const char *suffix; 79044cb6abcSbmc 79191ebeef5Sahrens static const char *bytestats[] = { 79291ebeef5Sahrens "p", "c", "c_min", "c_max", "size", NULL 79391ebeef5Sahrens }; 79491ebeef5Sahrens 79591ebeef5Sahrens static const char *extras[] = { 79691ebeef5Sahrens "arc_no_grow", "arc_tempreserve", 79791ebeef5Sahrens "arc_meta_used", "arc_meta_limit", "arc_meta_max", 79891ebeef5Sahrens NULL 79944cb6abcSbmc }; 80044cb6abcSbmc 80144cb6abcSbmc if (mdb_lookup_by_name("arc_stats", &sym) == -1) { 80244cb6abcSbmc mdb_warn("failed to find 'arc_stats'"); 80344cb6abcSbmc return (DCMD_ERR); 80444cb6abcSbmc } 80544cb6abcSbmc 80644cb6abcSbmc stats = mdb_zalloc(sym.st_size, UM_SLEEP | UM_GC); 80744cb6abcSbmc 80844cb6abcSbmc if (mdb_vread(stats, sym.st_size, sym.st_value) == -1) { 80944cb6abcSbmc mdb_warn("couldn't read 'arc_stats' at %p", sym.st_value); 81044cb6abcSbmc return (DCMD_ERR); 81144cb6abcSbmc } 81244cb6abcSbmc 81344cb6abcSbmc nstats = sym.st_size / sizeof (kstat_named_t); 81444cb6abcSbmc 81591ebeef5Sahrens /* NB: -a / opt_a are ignored for backwards compatability */ 81691ebeef5Sahrens if (mdb_getopts(argc, argv, 81791ebeef5Sahrens 'a', MDB_OPT_SETBITS, TRUE, &opt_a, 81891ebeef5Sahrens 'b', MDB_OPT_SETBITS, TRUE, &opt_b, 81991ebeef5Sahrens 'k', MDB_OPT_SETBITS, 10, &shift, 82091ebeef5Sahrens 'm', MDB_OPT_SETBITS, 20, &shift, 82191ebeef5Sahrens 'g', MDB_OPT_SETBITS, 30, &shift, 82291ebeef5Sahrens NULL) != argc) 82344cb6abcSbmc return (DCMD_USAGE); 82444cb6abcSbmc 82591ebeef5Sahrens if (!opt_b && !shift) 82691ebeef5Sahrens shift = 20; 82744cb6abcSbmc 82891ebeef5Sahrens switch (shift) { 82991ebeef5Sahrens case 0: 83091ebeef5Sahrens suffix = "B"; 83191ebeef5Sahrens break; 83291ebeef5Sahrens case 10: 83391ebeef5Sahrens suffix = "KB"; 83491ebeef5Sahrens break; 83591ebeef5Sahrens case 20: 83691ebeef5Sahrens suffix = "MB"; 83791ebeef5Sahrens break; 83891ebeef5Sahrens case 30: 83991ebeef5Sahrens suffix = "GB"; 84091ebeef5Sahrens break; 84191ebeef5Sahrens default: 84291ebeef5Sahrens suffix = "XX"; 84391ebeef5Sahrens } 84491ebeef5Sahrens 84544cb6abcSbmc for (i = 0; i < nstats; i++) { 84691ebeef5Sahrens int j; 84791ebeef5Sahrens boolean_t bytes = B_FALSE; 84891ebeef5Sahrens 84991ebeef5Sahrens for (j = 0; bytestats[j]; j++) { 85091ebeef5Sahrens if (strcmp(stats[i].name, bytestats[j]) == 0) { 85191ebeef5Sahrens bytes = B_TRUE; 85291ebeef5Sahrens break; 85391ebeef5Sahrens } 85491ebeef5Sahrens } 85591ebeef5Sahrens 85691ebeef5Sahrens if (bytes) { 85791ebeef5Sahrens mdb_printf("%-25s = %9llu %s\n", stats[i].name, 85891ebeef5Sahrens stats[i].value.ui64 >> shift, suffix); 85991ebeef5Sahrens } else { 86091ebeef5Sahrens mdb_printf("%-25s = %9llu\n", stats[i].name, 86144cb6abcSbmc stats[i].value.ui64); 86244cb6abcSbmc } 86344cb6abcSbmc } 86444cb6abcSbmc 86591ebeef5Sahrens for (i = 0; extras[i]; i++) { 86644cb6abcSbmc uint64_t buf; 86744cb6abcSbmc 86891ebeef5Sahrens if (mdb_lookup_by_name(extras[i], &sym) == -1) { 86991ebeef5Sahrens mdb_warn("failed to find '%s'", extras[i]); 87044cb6abcSbmc return (DCMD_ERR); 87144cb6abcSbmc } 87244cb6abcSbmc 87344cb6abcSbmc if (sym.st_size != sizeof (uint64_t) && 87444cb6abcSbmc sym.st_size != sizeof (uint32_t)) { 87591ebeef5Sahrens mdb_warn("expected scalar for variable '%s'\n", 87691ebeef5Sahrens extras[i]); 87744cb6abcSbmc return (DCMD_ERR); 87844cb6abcSbmc } 87944cb6abcSbmc 88044cb6abcSbmc if (mdb_vread(&buf, sym.st_size, sym.st_value) == -1) { 88191ebeef5Sahrens mdb_warn("couldn't read '%s'", extras[i]); 88244cb6abcSbmc return (DCMD_ERR); 88344cb6abcSbmc } 88444cb6abcSbmc 88591ebeef5Sahrens mdb_printf("%-25s = ", extras[i]); 88644cb6abcSbmc 88791ebeef5Sahrens /* NB: all the 64-bit extras happen to be byte counts */ 88844cb6abcSbmc if (sym.st_size == sizeof (uint64_t)) 88991ebeef5Sahrens mdb_printf("%9llu %s\n", buf >> shift, suffix); 89044cb6abcSbmc 89144cb6abcSbmc if (sym.st_size == sizeof (uint32_t)) 89291ebeef5Sahrens mdb_printf("%9d\n", *((uint32_t *)&buf)); 89344cb6abcSbmc } 89444cb6abcSbmc return (DCMD_OK); 89544cb6abcSbmc } 89644cb6abcSbmc 897fa9e4066Sahrens /* 898fa9e4066Sahrens * ::spa 899fa9e4066Sahrens * 900fa9e4066Sahrens * -c Print configuration information as well 901fa9e4066Sahrens * -v Print vdev state 902fa9e4066Sahrens * -e Print vdev error stats 903fa9e4066Sahrens * 904fa9e4066Sahrens * Print a summarized spa_t. When given no arguments, prints out a table of all 905fa9e4066Sahrens * active pools on the system. 906fa9e4066Sahrens */ 907fa9e4066Sahrens /* ARGSUSED */ 908fa9e4066Sahrens static int 909fa9e4066Sahrens spa_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 910fa9e4066Sahrens { 911fa9e4066Sahrens spa_t spa; 912fa9e4066Sahrens char poolname[MAXNAMELEN]; 913fa9e4066Sahrens const char *statetab[] = { "ACTIVE", "EXPORTED", "DESTROYED", 9140a4e9518Sgw25295 "SPARE", "UNINIT", "IOFAILURE", "UNAVAIL" }; 915fa9e4066Sahrens const char *state; 916fa9e4066Sahrens int config = FALSE; 917fa9e4066Sahrens int vdevs = FALSE; 918fa9e4066Sahrens int errors = FALSE; 919fa9e4066Sahrens 920fa9e4066Sahrens if (mdb_getopts(argc, argv, 921fa9e4066Sahrens 'c', MDB_OPT_SETBITS, TRUE, &config, 922fa9e4066Sahrens 'v', MDB_OPT_SETBITS, TRUE, &vdevs, 923fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 924fa9e4066Sahrens NULL) != argc) 925fa9e4066Sahrens return (DCMD_USAGE); 926fa9e4066Sahrens 927fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 928fa9e4066Sahrens if (mdb_walk_dcmd("spa", "spa", argc, argv) == -1) { 929fa9e4066Sahrens mdb_warn("can't walk spa"); 930fa9e4066Sahrens return (DCMD_ERR); 931fa9e4066Sahrens } 932fa9e4066Sahrens 933fa9e4066Sahrens return (DCMD_OK); 934fa9e4066Sahrens } 935fa9e4066Sahrens 936fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 937fa9e4066Sahrens mdb_printf("%#lr\n", addr); 938fa9e4066Sahrens return (DCMD_OK); 939fa9e4066Sahrens } 940fa9e4066Sahrens 941fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) 942fa9e4066Sahrens mdb_printf("%<u>%-?s %9s %-*s%</u>\n", "ADDR", "STATE", 943fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 60 : 52, "NAME"); 944fa9e4066Sahrens 945fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 946fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 947fa9e4066Sahrens return (DCMD_ERR); 948fa9e4066Sahrens } 949fa9e4066Sahrens 950fa9e4066Sahrens if (mdb_readstr(poolname, sizeof (poolname), (uintptr_t)spa.spa_name) 951fa9e4066Sahrens == -1) { 952fa9e4066Sahrens mdb_warn("failed to read pool name at %p", spa.spa_name); 953fa9e4066Sahrens return (DCMD_ERR); 954fa9e4066Sahrens } 955fa9e4066Sahrens 956fa9e4066Sahrens if (spa.spa_state < 0 || spa.spa_state > POOL_STATE_UNAVAIL) 957ea8dc4b6Seschrock state = "UNKNOWN"; 958fa9e4066Sahrens else 959fa9e4066Sahrens state = statetab[spa.spa_state]; 960fa9e4066Sahrens 961fa9e4066Sahrens mdb_printf("%0?p %9s %s\n", addr, state, poolname); 962fa9e4066Sahrens 963fa9e4066Sahrens if (config) { 964fa9e4066Sahrens mdb_printf("\n"); 965fa9e4066Sahrens mdb_inc_indent(4); 966fa9e4066Sahrens if (mdb_call_dcmd("spa_config", addr, flags, 0, 967fa9e4066Sahrens NULL) != DCMD_OK) 968fa9e4066Sahrens return (DCMD_ERR); 969fa9e4066Sahrens mdb_dec_indent(4); 970fa9e4066Sahrens } 971fa9e4066Sahrens 972fa9e4066Sahrens if (vdevs || errors) { 973fa9e4066Sahrens mdb_arg_t v; 974fa9e4066Sahrens 975fa9e4066Sahrens v.a_type = MDB_TYPE_STRING; 976fa9e4066Sahrens v.a_un.a_str = "-e"; 977fa9e4066Sahrens 978fa9e4066Sahrens mdb_printf("\n"); 979fa9e4066Sahrens mdb_inc_indent(4); 980fa9e4066Sahrens if (mdb_call_dcmd("spa_vdevs", addr, flags, errors ? 1 : 0, 981fa9e4066Sahrens &v) != DCMD_OK) 982fa9e4066Sahrens return (DCMD_ERR); 983fa9e4066Sahrens mdb_dec_indent(4); 984fa9e4066Sahrens } 985fa9e4066Sahrens 986fa9e4066Sahrens return (DCMD_OK); 987fa9e4066Sahrens } 988fa9e4066Sahrens 989fa9e4066Sahrens /* 990fa9e4066Sahrens * ::spa_config 991fa9e4066Sahrens * 992fa9e4066Sahrens * Given a spa_t, print the configuration information stored in spa_config. 993fa9e4066Sahrens * Since it's just an nvlist, format it as an indented list of name=value pairs. 994fa9e4066Sahrens * We simply read the value of spa_config and pass off to ::nvlist. 995fa9e4066Sahrens */ 996fa9e4066Sahrens /* ARGSUSED */ 997fa9e4066Sahrens static int 998fa9e4066Sahrens spa_print_config(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 999fa9e4066Sahrens { 1000fa9e4066Sahrens spa_t spa; 1001fa9e4066Sahrens 1002fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1003fa9e4066Sahrens return (DCMD_USAGE); 1004fa9e4066Sahrens 1005fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1006fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1007fa9e4066Sahrens return (DCMD_ERR); 1008fa9e4066Sahrens } 1009fa9e4066Sahrens 1010fa9e4066Sahrens if (spa.spa_config == NULL) { 1011fa9e4066Sahrens mdb_printf("(none)\n"); 1012fa9e4066Sahrens return (DCMD_OK); 1013fa9e4066Sahrens } 1014fa9e4066Sahrens 1015fa9e4066Sahrens return (mdb_call_dcmd("nvlist", (uintptr_t)spa.spa_config, flags, 1016fa9e4066Sahrens 0, NULL)); 1017fa9e4066Sahrens } 1018fa9e4066Sahrens 1019fa9e4066Sahrens /* 1020fa9e4066Sahrens * ::vdev 1021fa9e4066Sahrens * 1022fa9e4066Sahrens * Print out a summarized vdev_t, in the following form: 1023fa9e4066Sahrens * 1024fa9e4066Sahrens * ADDR STATE AUX DESC 1025fa9e4066Sahrens * fffffffbcde23df0 HEALTHY - /dev/dsk/c0t0d0 1026fa9e4066Sahrens * 1027fa9e4066Sahrens * If '-r' is specified, recursively visit all children. 1028fa9e4066Sahrens * 1029fa9e4066Sahrens * With '-e', the statistics associated with the vdev are printed as well. 1030fa9e4066Sahrens */ 1031fa9e4066Sahrens static int 1032614409b5Sahrens do_print_vdev(uintptr_t addr, int flags, int depth, int stats, 1033fa9e4066Sahrens int recursive) 1034fa9e4066Sahrens { 1035fa9e4066Sahrens vdev_t vdev; 1036fa9e4066Sahrens char desc[MAXNAMELEN]; 1037fa9e4066Sahrens int c, children; 1038fa9e4066Sahrens uintptr_t *child; 1039fa9e4066Sahrens const char *state, *aux; 1040fa9e4066Sahrens 1041fa9e4066Sahrens if (mdb_vread(&vdev, sizeof (vdev), (uintptr_t)addr) == -1) { 1042fa9e4066Sahrens mdb_warn("failed to read vdev_t at %p\n", (uintptr_t)addr); 1043fa9e4066Sahrens return (DCMD_ERR); 1044fa9e4066Sahrens } 1045fa9e4066Sahrens 1046fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 1047fa9e4066Sahrens mdb_printf("%#lr", addr); 1048fa9e4066Sahrens } else { 1049fa9e4066Sahrens if (vdev.vdev_path != NULL) { 1050fa9e4066Sahrens if (mdb_readstr(desc, sizeof (desc), 1051fa9e4066Sahrens (uintptr_t)vdev.vdev_path) == -1) { 1052fa9e4066Sahrens mdb_warn("failed to read vdev_path at %p\n", 1053fa9e4066Sahrens vdev.vdev_path); 1054fa9e4066Sahrens return (DCMD_ERR); 1055fa9e4066Sahrens } 1056fa9e4066Sahrens } else if (vdev.vdev_ops != NULL) { 1057fa9e4066Sahrens vdev_ops_t ops; 1058fa9e4066Sahrens if (mdb_vread(&ops, sizeof (ops), 1059fa9e4066Sahrens (uintptr_t)vdev.vdev_ops) == -1) { 1060fa9e4066Sahrens mdb_warn("failed to read vdev_ops at %p\n", 1061fa9e4066Sahrens vdev.vdev_ops); 1062fa9e4066Sahrens return (DCMD_ERR); 1063fa9e4066Sahrens } 1064fa9e4066Sahrens (void) strcpy(desc, ops.vdev_op_type); 1065fa9e4066Sahrens } else { 1066fa9e4066Sahrens (void) strcpy(desc, "<unknown>"); 1067fa9e4066Sahrens } 1068fa9e4066Sahrens 1069fa9e4066Sahrens if (depth == 0 && DCMD_HDRSPEC(flags)) 1070fa9e4066Sahrens mdb_printf("%<u>%-?s %-9s %-12s %-*s%</u>\n", 1071fa9e4066Sahrens "ADDR", "STATE", "AUX", 1072fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 43 : 35, 1073fa9e4066Sahrens "DESCRIPTION"); 1074fa9e4066Sahrens 1075fa9e4066Sahrens mdb_printf("%0?p ", addr); 1076fa9e4066Sahrens 1077fa9e4066Sahrens switch (vdev.vdev_state) { 1078fa9e4066Sahrens case VDEV_STATE_CLOSED: 1079fa9e4066Sahrens state = "CLOSED"; 1080fa9e4066Sahrens break; 1081fa9e4066Sahrens case VDEV_STATE_OFFLINE: 1082fa9e4066Sahrens state = "OFFLINE"; 1083fa9e4066Sahrens break; 1084fa9e4066Sahrens case VDEV_STATE_CANT_OPEN: 1085fa9e4066Sahrens state = "CANT_OPEN"; 1086fa9e4066Sahrens break; 1087fa9e4066Sahrens case VDEV_STATE_DEGRADED: 1088fa9e4066Sahrens state = "DEGRADED"; 1089fa9e4066Sahrens break; 1090fa9e4066Sahrens case VDEV_STATE_HEALTHY: 1091fa9e4066Sahrens state = "HEALTHY"; 1092fa9e4066Sahrens break; 10933d7072f8Seschrock case VDEV_STATE_REMOVED: 10943d7072f8Seschrock state = "REMOVED"; 10953d7072f8Seschrock break; 10963d7072f8Seschrock case VDEV_STATE_FAULTED: 10973d7072f8Seschrock state = "FAULTED"; 10983d7072f8Seschrock break; 1099fa9e4066Sahrens default: 1100fa9e4066Sahrens state = "UNKNOWN"; 1101fa9e4066Sahrens break; 1102fa9e4066Sahrens } 1103fa9e4066Sahrens 1104fa9e4066Sahrens switch (vdev.vdev_stat.vs_aux) { 1105fa9e4066Sahrens case VDEV_AUX_NONE: 1106fa9e4066Sahrens aux = "-"; 1107fa9e4066Sahrens break; 1108fa9e4066Sahrens case VDEV_AUX_OPEN_FAILED: 1109fa9e4066Sahrens aux = "OPEN_FAILED"; 1110fa9e4066Sahrens break; 1111fa9e4066Sahrens case VDEV_AUX_CORRUPT_DATA: 1112fa9e4066Sahrens aux = "CORRUPT_DATA"; 1113fa9e4066Sahrens break; 1114fa9e4066Sahrens case VDEV_AUX_NO_REPLICAS: 1115fa9e4066Sahrens aux = "NO_REPLICAS"; 1116fa9e4066Sahrens break; 1117fa9e4066Sahrens case VDEV_AUX_BAD_GUID_SUM: 1118fa9e4066Sahrens aux = "BAD_GUID_SUM"; 1119fa9e4066Sahrens break; 1120fa9e4066Sahrens case VDEV_AUX_TOO_SMALL: 1121fa9e4066Sahrens aux = "TOO_SMALL"; 1122fa9e4066Sahrens break; 1123fa9e4066Sahrens case VDEV_AUX_BAD_LABEL: 1124fa9e4066Sahrens aux = "BAD_LABEL"; 1125fa9e4066Sahrens break; 1126fa9e4066Sahrens default: 1127fa9e4066Sahrens aux = "UNKNOWN"; 1128fa9e4066Sahrens break; 1129fa9e4066Sahrens } 1130fa9e4066Sahrens 1131fa9e4066Sahrens mdb_printf("%-9s %-12s %*s%s\n", state, aux, depth, "", desc); 1132fa9e4066Sahrens 1133fa9e4066Sahrens if (stats) { 1134fa9e4066Sahrens vdev_stat_t *vs = &vdev.vdev_stat; 1135fa9e4066Sahrens int i; 1136fa9e4066Sahrens 1137fa9e4066Sahrens mdb_inc_indent(4); 1138fa9e4066Sahrens mdb_printf("\n"); 1139fa9e4066Sahrens mdb_printf("%<u> %12s %12s %12s %12s " 1140fa9e4066Sahrens "%12s%</u>\n", "READ", "WRITE", "FREE", "CLAIM", 1141fa9e4066Sahrens "IOCTL"); 1142fa9e4066Sahrens mdb_printf("OPS "); 1143fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1144fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_ops[i], 1145fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1146fa9e4066Sahrens mdb_printf("\n"); 1147fa9e4066Sahrens mdb_printf("BYTES "); 1148fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1149fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_bytes[i], 1150fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1151fa9e4066Sahrens 1152fa9e4066Sahrens 1153fa9e4066Sahrens mdb_printf("\n"); 1154fa9e4066Sahrens mdb_printf("EREAD %10#llx\n", vs->vs_read_errors); 1155fa9e4066Sahrens mdb_printf("EWRITE %10#llx\n", vs->vs_write_errors); 1156fa9e4066Sahrens mdb_printf("ECKSUM %10#llx\n", 1157fa9e4066Sahrens vs->vs_checksum_errors); 1158fa9e4066Sahrens mdb_dec_indent(4); 1159fa9e4066Sahrens } 1160fa9e4066Sahrens 1161614409b5Sahrens if (stats) 1162fa9e4066Sahrens mdb_printf("\n"); 1163fa9e4066Sahrens } 1164fa9e4066Sahrens 1165fa9e4066Sahrens children = vdev.vdev_children; 1166fa9e4066Sahrens 1167fa9e4066Sahrens if (children == 0 || !recursive) 1168fa9e4066Sahrens return (DCMD_OK); 1169fa9e4066Sahrens 1170fa9e4066Sahrens child = mdb_alloc(children * sizeof (void *), UM_SLEEP | UM_GC); 1171fa9e4066Sahrens if (mdb_vread(child, children * sizeof (void *), 1172fa9e4066Sahrens (uintptr_t)vdev.vdev_child) == -1) { 1173fa9e4066Sahrens mdb_warn("failed to read vdev children at %p", vdev.vdev_child); 1174fa9e4066Sahrens return (DCMD_ERR); 1175fa9e4066Sahrens } 1176fa9e4066Sahrens 1177fa9e4066Sahrens for (c = 0; c < children; c++) { 1178614409b5Sahrens if (do_print_vdev(child[c], flags, depth + 2, stats, 1179fa9e4066Sahrens recursive)) 1180fa9e4066Sahrens return (DCMD_ERR); 1181fa9e4066Sahrens } 1182fa9e4066Sahrens 1183fa9e4066Sahrens return (DCMD_OK); 1184fa9e4066Sahrens } 1185fa9e4066Sahrens 1186fa9e4066Sahrens static int 1187fa9e4066Sahrens vdev_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1188fa9e4066Sahrens { 1189fa9e4066Sahrens int recursive = FALSE; 1190fa9e4066Sahrens int stats = FALSE; 1191fa9e4066Sahrens 1192fa9e4066Sahrens if (mdb_getopts(argc, argv, 1193fa9e4066Sahrens 'r', MDB_OPT_SETBITS, TRUE, &recursive, 1194fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &stats, 1195fa9e4066Sahrens NULL) != argc) 1196fa9e4066Sahrens return (DCMD_USAGE); 1197fa9e4066Sahrens 1198fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 1199fa9e4066Sahrens mdb_warn("no vdev_t address given\n"); 1200fa9e4066Sahrens return (DCMD_ERR); 1201fa9e4066Sahrens } 1202fa9e4066Sahrens 1203614409b5Sahrens return (do_print_vdev(addr, flags, 0, stats, recursive)); 1204fa9e4066Sahrens } 1205fa9e4066Sahrens 12065f5f7a6fSahrens typedef struct metaslab_walk_data { 12075f5f7a6fSahrens uint64_t mw_numvdevs; 12085f5f7a6fSahrens uintptr_t *mw_vdevs; 12095f5f7a6fSahrens int mw_curvdev; 12105f5f7a6fSahrens uint64_t mw_nummss; 12115f5f7a6fSahrens uintptr_t *mw_mss; 12125f5f7a6fSahrens int mw_curms; 12135f5f7a6fSahrens } metaslab_walk_data_t; 12145f5f7a6fSahrens 12155f5f7a6fSahrens static int 12165f5f7a6fSahrens metaslab_walk_step(mdb_walk_state_t *wsp) 12175f5f7a6fSahrens { 12185f5f7a6fSahrens metaslab_walk_data_t *mw = wsp->walk_data; 12195f5f7a6fSahrens metaslab_t ms; 12205f5f7a6fSahrens uintptr_t msp; 12215f5f7a6fSahrens 12225f5f7a6fSahrens if (mw->mw_curvdev >= mw->mw_numvdevs) 12235f5f7a6fSahrens return (WALK_DONE); 12245f5f7a6fSahrens 12255f5f7a6fSahrens if (mw->mw_mss == NULL) { 12265f5f7a6fSahrens uintptr_t mssp; 12275f5f7a6fSahrens uintptr_t vdevp; 12285f5f7a6fSahrens 12295f5f7a6fSahrens ASSERT(mw->mw_curms == 0); 12305f5f7a6fSahrens ASSERT(mw->mw_nummss == 0); 12315f5f7a6fSahrens 12325f5f7a6fSahrens vdevp = mw->mw_vdevs[mw->mw_curvdev]; 12335f5f7a6fSahrens if (GETMEMB(vdevp, struct vdev, vdev_ms, mssp) || 12345f5f7a6fSahrens GETMEMB(vdevp, struct vdev, vdev_ms_count, mw->mw_nummss)) { 12355f5f7a6fSahrens return (WALK_ERR); 12365f5f7a6fSahrens } 12375f5f7a6fSahrens 12385f5f7a6fSahrens mw->mw_mss = mdb_alloc(mw->mw_nummss * sizeof (void*), 12395f5f7a6fSahrens UM_SLEEP | UM_GC); 12405f5f7a6fSahrens if (mdb_vread(mw->mw_mss, mw->mw_nummss * sizeof (void*), 12415f5f7a6fSahrens mssp) == -1) { 12425f5f7a6fSahrens mdb_warn("failed to read vdev_ms at %p", mssp); 12435f5f7a6fSahrens return (WALK_ERR); 12445f5f7a6fSahrens } 12455f5f7a6fSahrens } 12465f5f7a6fSahrens 12475f5f7a6fSahrens if (mw->mw_curms >= mw->mw_nummss) { 12485f5f7a6fSahrens mw->mw_mss = NULL; 12495f5f7a6fSahrens mw->mw_curms = 0; 12505f5f7a6fSahrens mw->mw_nummss = 0; 12515f5f7a6fSahrens mw->mw_curvdev++; 12525f5f7a6fSahrens return (WALK_NEXT); 12535f5f7a6fSahrens } 12545f5f7a6fSahrens 12555f5f7a6fSahrens msp = mw->mw_mss[mw->mw_curms]; 12565f5f7a6fSahrens if (mdb_vread(&ms, sizeof (metaslab_t), msp) == -1) { 12575f5f7a6fSahrens mdb_warn("failed to read metaslab_t at %p", msp); 12585f5f7a6fSahrens return (WALK_ERR); 12595f5f7a6fSahrens } 12605f5f7a6fSahrens 12615f5f7a6fSahrens mw->mw_curms++; 12625f5f7a6fSahrens 12635f5f7a6fSahrens return (wsp->walk_callback(msp, &ms, wsp->walk_cbdata)); 12645f5f7a6fSahrens } 12655f5f7a6fSahrens 12665f5f7a6fSahrens /* ARGSUSED */ 12675f5f7a6fSahrens static int 12685f5f7a6fSahrens metaslab_walk_init(mdb_walk_state_t *wsp) 12695f5f7a6fSahrens { 12705f5f7a6fSahrens metaslab_walk_data_t *mw; 12715f5f7a6fSahrens uintptr_t root_vdevp; 12725f5f7a6fSahrens uintptr_t childp; 12735f5f7a6fSahrens 12745f5f7a6fSahrens if (wsp->walk_addr == NULL) { 12755f5f7a6fSahrens mdb_warn("must supply address of spa_t\n"); 12765f5f7a6fSahrens return (WALK_ERR); 12775f5f7a6fSahrens } 12785f5f7a6fSahrens 12795f5f7a6fSahrens mw = mdb_zalloc(sizeof (metaslab_walk_data_t), UM_SLEEP | UM_GC); 12805f5f7a6fSahrens 12815f5f7a6fSahrens if (GETMEMB(wsp->walk_addr, struct spa, spa_root_vdev, root_vdevp) || 12825f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_children, mw->mw_numvdevs) || 12835f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_child, childp)) { 12845f5f7a6fSahrens return (DCMD_ERR); 12855f5f7a6fSahrens } 12865f5f7a6fSahrens 12875f5f7a6fSahrens mw->mw_vdevs = mdb_alloc(mw->mw_numvdevs * sizeof (void *), 12885f5f7a6fSahrens UM_SLEEP | UM_GC); 12895f5f7a6fSahrens if (mdb_vread(mw->mw_vdevs, mw->mw_numvdevs * sizeof (void *), 12905f5f7a6fSahrens childp) == -1) { 12915f5f7a6fSahrens mdb_warn("failed to read root vdev children at %p", childp); 12925f5f7a6fSahrens return (DCMD_ERR); 12935f5f7a6fSahrens } 12945f5f7a6fSahrens 12955f5f7a6fSahrens wsp->walk_data = mw; 12965f5f7a6fSahrens 12975f5f7a6fSahrens return (WALK_NEXT); 12985f5f7a6fSahrens } 12995f5f7a6fSahrens 1300fa9e4066Sahrens typedef struct mdb_spa { 1301fa9e4066Sahrens uintptr_t spa_dsl_pool; 1302fa9e4066Sahrens uintptr_t spa_root_vdev; 1303fa9e4066Sahrens } mdb_spa_t; 1304fa9e4066Sahrens 1305fa9e4066Sahrens typedef struct mdb_dsl_dir { 1306fa9e4066Sahrens uintptr_t dd_phys; 1307fa9e4066Sahrens uint64_t dd_used_bytes; 1308fa9e4066Sahrens int64_t dd_space_towrite[TXG_SIZE]; 1309fa9e4066Sahrens } mdb_dsl_dir_t; 1310fa9e4066Sahrens 1311fa9e4066Sahrens typedef struct mdb_dsl_dir_phys { 1312fa9e4066Sahrens uint64_t dd_used_bytes; 1313fa9e4066Sahrens uint64_t dd_compressed_bytes; 1314fa9e4066Sahrens uint64_t dd_uncompressed_bytes; 1315fa9e4066Sahrens } mdb_dsl_dir_phys_t; 1316fa9e4066Sahrens 1317fa9e4066Sahrens typedef struct mdb_vdev { 1318fa9e4066Sahrens uintptr_t vdev_parent; 1319fa9e4066Sahrens uintptr_t vdev_ms; 1320fa9e4066Sahrens uint64_t vdev_ms_count; 1321fa9e4066Sahrens vdev_stat_t vdev_stat; 1322fa9e4066Sahrens } mdb_vdev_t; 1323fa9e4066Sahrens 1324fa9e4066Sahrens typedef struct mdb_metaslab { 1325fa9e4066Sahrens space_map_t ms_allocmap[TXG_SIZE]; 1326fa9e4066Sahrens space_map_t ms_freemap[TXG_SIZE]; 1327fa9e4066Sahrens space_map_t ms_map; 1328ecc2d604Sbonwick space_map_obj_t ms_smo; 13295f5f7a6fSahrens space_map_obj_t ms_smo_syncing; 1330fa9e4066Sahrens } mdb_metaslab_t; 1331fa9e4066Sahrens 13325f5f7a6fSahrens typedef struct space_data { 13335f5f7a6fSahrens uint64_t ms_allocmap[TXG_SIZE]; 13345f5f7a6fSahrens uint64_t ms_freemap[TXG_SIZE]; 13355f5f7a6fSahrens uint64_t ms_map; 13365f5f7a6fSahrens uint64_t avail; 13375f5f7a6fSahrens uint64_t nowavail; 13385f5f7a6fSahrens } space_data_t; 13395f5f7a6fSahrens 13405f5f7a6fSahrens /* ARGSUSED */ 13415f5f7a6fSahrens static int 13425f5f7a6fSahrens space_cb(uintptr_t addr, const void *unknown, void *arg) 13435f5f7a6fSahrens { 13445f5f7a6fSahrens space_data_t *sd = arg; 13455f5f7a6fSahrens mdb_metaslab_t ms; 13465f5f7a6fSahrens 13475f5f7a6fSahrens if (GETMEMB(addr, struct metaslab, ms_allocmap, ms.ms_allocmap) || 13485f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_freemap, ms.ms_freemap) || 13495f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_map, ms.ms_map) || 13505f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo, ms.ms_smo) || 13515f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo_syncing, ms.ms_smo_syncing)) { 13525f5f7a6fSahrens return (WALK_ERR); 13535f5f7a6fSahrens } 13545f5f7a6fSahrens 13555f5f7a6fSahrens sd->ms_allocmap[0] += ms.ms_allocmap[0].sm_space; 13565f5f7a6fSahrens sd->ms_allocmap[1] += ms.ms_allocmap[1].sm_space; 13575f5f7a6fSahrens sd->ms_allocmap[2] += ms.ms_allocmap[2].sm_space; 13585f5f7a6fSahrens sd->ms_allocmap[3] += ms.ms_allocmap[3].sm_space; 13595f5f7a6fSahrens sd->ms_freemap[0] += ms.ms_freemap[0].sm_space; 13605f5f7a6fSahrens sd->ms_freemap[1] += ms.ms_freemap[1].sm_space; 13615f5f7a6fSahrens sd->ms_freemap[2] += ms.ms_freemap[2].sm_space; 13625f5f7a6fSahrens sd->ms_freemap[3] += ms.ms_freemap[3].sm_space; 13635f5f7a6fSahrens sd->ms_map += ms.ms_map.sm_space; 13645f5f7a6fSahrens sd->avail += ms.ms_map.sm_size - ms.ms_smo.smo_alloc; 13655f5f7a6fSahrens sd->nowavail += ms.ms_map.sm_size - ms.ms_smo_syncing.smo_alloc; 13665f5f7a6fSahrens 13675f5f7a6fSahrens return (WALK_NEXT); 13685f5f7a6fSahrens } 13695f5f7a6fSahrens 1370fa9e4066Sahrens /* 1371fa9e4066Sahrens * ::spa_space [-b] 1372fa9e4066Sahrens * 1373fa9e4066Sahrens * Given a spa_t, print out it's on-disk space usage and in-core 1374fa9e4066Sahrens * estimates of future usage. If -b is given, print space in bytes. 1375fa9e4066Sahrens * Otherwise print in megabytes. 1376fa9e4066Sahrens */ 1377fa9e4066Sahrens /* ARGSUSED */ 1378fa9e4066Sahrens static int 1379fa9e4066Sahrens spa_space(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1380fa9e4066Sahrens { 1381fa9e4066Sahrens mdb_spa_t spa; 1382fa9e4066Sahrens uintptr_t dp_root_dir; 1383fa9e4066Sahrens mdb_dsl_dir_t dd; 1384fa9e4066Sahrens mdb_dsl_dir_phys_t dsp; 1385fa9e4066Sahrens uint64_t children; 1386fa9e4066Sahrens uintptr_t childaddr; 13875f5f7a6fSahrens space_data_t sd; 1388fa9e4066Sahrens int shift = 20; 1389fa9e4066Sahrens char *suffix = "M"; 1390fa9e4066Sahrens int bits = FALSE; 1391fa9e4066Sahrens 1392fa9e4066Sahrens if (mdb_getopts(argc, argv, 'b', MDB_OPT_SETBITS, TRUE, &bits, NULL) != 1393fa9e4066Sahrens argc) 1394fa9e4066Sahrens return (DCMD_USAGE); 1395fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1396fa9e4066Sahrens return (DCMD_USAGE); 1397fa9e4066Sahrens 1398fa9e4066Sahrens if (bits) { 1399fa9e4066Sahrens shift = 0; 1400fa9e4066Sahrens suffix = ""; 1401fa9e4066Sahrens } 1402fa9e4066Sahrens 1403fa9e4066Sahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, spa.spa_dsl_pool) || 1404fa9e4066Sahrens GETMEMB(addr, struct spa, spa_root_vdev, spa.spa_root_vdev) || 1405fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_children, children) || 1406fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_child, childaddr) || 1407fa9e4066Sahrens GETMEMB(spa.spa_dsl_pool, struct dsl_pool, 1408fa9e4066Sahrens dp_root_dir, dp_root_dir) || 1409fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, dd_phys, dd.dd_phys) || 1410fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, 1411fa9e4066Sahrens dd_used_bytes, dd.dd_used_bytes) || 1412fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, 1413fa9e4066Sahrens dd_space_towrite, dd.dd_space_towrite) || 1414fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 14155f5f7a6fSahrens dd_used_bytes, dsp.dd_used_bytes) || 14165f5f7a6fSahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1417fa9e4066Sahrens dd_compressed_bytes, dsp.dd_compressed_bytes) || 1418fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1419fa9e4066Sahrens dd_uncompressed_bytes, dsp.dd_uncompressed_bytes)) { 1420fa9e4066Sahrens return (DCMD_ERR); 1421fa9e4066Sahrens } 1422fa9e4066Sahrens 1423fa9e4066Sahrens mdb_printf("dd_space_towrite = %llu%s %llu%s %llu%s %llu%s\n", 1424fa9e4066Sahrens dd.dd_space_towrite[0] >> shift, suffix, 1425fa9e4066Sahrens dd.dd_space_towrite[1] >> shift, suffix, 1426fa9e4066Sahrens dd.dd_space_towrite[2] >> shift, suffix, 1427fa9e4066Sahrens dd.dd_space_towrite[3] >> shift, suffix); 1428fa9e4066Sahrens mdb_printf("dd_used_bytes = %llu%s\n", 1429fa9e4066Sahrens dd.dd_used_bytes >> shift, suffix); 1430fa9e4066Sahrens 1431fa9e4066Sahrens mdb_printf("dd_phys.dd_used_bytes = %llu%s\n", 1432fa9e4066Sahrens dsp.dd_used_bytes >> shift, suffix); 1433fa9e4066Sahrens mdb_printf("dd_phys.dd_compressed_bytes = %llu%s\n", 1434fa9e4066Sahrens dsp.dd_compressed_bytes >> shift, suffix); 1435fa9e4066Sahrens mdb_printf("dd_phys.dd_uncompressed_bytes = %llu%s\n", 1436fa9e4066Sahrens dsp.dd_uncompressed_bytes >> shift, suffix); 1437fa9e4066Sahrens 14385f5f7a6fSahrens bzero(&sd, sizeof (sd)); 14395f5f7a6fSahrens if (mdb_pwalk("metaslab", space_cb, &sd, addr) != 0) { 14405f5f7a6fSahrens mdb_warn("can't walk metaslabs"); 1441fa9e4066Sahrens return (DCMD_ERR); 1442fa9e4066Sahrens } 1443fa9e4066Sahrens 1444fa9e4066Sahrens mdb_printf("ms_allocmap = %llu%s %llu%s %llu%s %llu%s\n", 14455f5f7a6fSahrens sd.ms_allocmap[0] >> shift, suffix, 14465f5f7a6fSahrens sd.ms_allocmap[1] >> shift, suffix, 14475f5f7a6fSahrens sd.ms_allocmap[2] >> shift, suffix, 14485f5f7a6fSahrens sd.ms_allocmap[3] >> shift, suffix); 1449fa9e4066Sahrens mdb_printf("ms_freemap = %llu%s %llu%s %llu%s %llu%s\n", 14505f5f7a6fSahrens sd.ms_freemap[0] >> shift, suffix, 14515f5f7a6fSahrens sd.ms_freemap[1] >> shift, suffix, 14525f5f7a6fSahrens sd.ms_freemap[2] >> shift, suffix, 14535f5f7a6fSahrens sd.ms_freemap[3] >> shift, suffix); 14545f5f7a6fSahrens mdb_printf("ms_map = %llu%s\n", sd.ms_map >> shift, suffix); 14555f5f7a6fSahrens mdb_printf("last synced avail = %llu%s\n", sd.avail >> shift, suffix); 14565f5f7a6fSahrens mdb_printf("current syncing avail = %llu%s\n", 14575f5f7a6fSahrens sd.nowavail >> shift, suffix); 1458fa9e4066Sahrens 1459fa9e4066Sahrens return (DCMD_OK); 1460fa9e4066Sahrens } 1461fa9e4066Sahrens 1462fa9e4066Sahrens /* 1463fa9e4066Sahrens * ::spa_verify 1464fa9e4066Sahrens * 1465fa9e4066Sahrens * Given a spa_t, verify that that the pool is self-consistent. 1466fa9e4066Sahrens * Currently, it only checks to make sure that the vdev tree exists. 1467fa9e4066Sahrens */ 1468fa9e4066Sahrens /* ARGSUSED */ 1469fa9e4066Sahrens static int 1470fa9e4066Sahrens spa_verify(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1471fa9e4066Sahrens { 1472fa9e4066Sahrens spa_t spa; 1473fa9e4066Sahrens 1474fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1475fa9e4066Sahrens return (DCMD_USAGE); 1476fa9e4066Sahrens 1477fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1478fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1479fa9e4066Sahrens return (DCMD_ERR); 1480fa9e4066Sahrens } 1481fa9e4066Sahrens 1482fa9e4066Sahrens if (spa.spa_root_vdev == NULL) { 1483fa9e4066Sahrens mdb_printf("no vdev tree present\n"); 1484fa9e4066Sahrens return (DCMD_OK); 1485fa9e4066Sahrens } 1486fa9e4066Sahrens 1487fa9e4066Sahrens return (DCMD_OK); 1488fa9e4066Sahrens } 1489fa9e4066Sahrens 1490fa9e4066Sahrens /* 1491fa9e4066Sahrens * ::spa_vdevs 1492fa9e4066Sahrens * 1493fa9e4066Sahrens * -e Include error stats 1494fa9e4066Sahrens * 1495fa9e4066Sahrens * Print out a summarized list of vdevs for the given spa_t. 1496fa9e4066Sahrens * This is accomplished by invoking "::vdev -re" on the root vdev. 1497fa9e4066Sahrens */ 1498fa9e4066Sahrens /* ARGSUSED */ 1499fa9e4066Sahrens static int 1500fa9e4066Sahrens spa_vdevs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1501fa9e4066Sahrens { 1502fa9e4066Sahrens spa_t spa; 1503fa9e4066Sahrens mdb_arg_t v; 1504fa9e4066Sahrens int errors = FALSE; 1505fa9e4066Sahrens 1506fa9e4066Sahrens if (mdb_getopts(argc, argv, 1507fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 1508fa9e4066Sahrens NULL) != argc) 1509fa9e4066Sahrens return (DCMD_USAGE); 1510fa9e4066Sahrens 1511fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1512fa9e4066Sahrens return (DCMD_USAGE); 1513fa9e4066Sahrens 1514fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1515fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1516fa9e4066Sahrens return (DCMD_ERR); 1517fa9e4066Sahrens } 1518fa9e4066Sahrens 1519088e9d47Seschrock /* 1520088e9d47Seschrock * Unitialized spa_t structures can have a NULL root vdev. 1521088e9d47Seschrock */ 1522088e9d47Seschrock if (spa.spa_root_vdev == NULL) { 1523088e9d47Seschrock mdb_printf("no associated vdevs\n"); 1524088e9d47Seschrock return (DCMD_OK); 1525088e9d47Seschrock } 1526088e9d47Seschrock 1527fa9e4066Sahrens v.a_type = MDB_TYPE_STRING; 1528fa9e4066Sahrens v.a_un.a_str = errors ? "-re" : "-r"; 1529fa9e4066Sahrens 1530fa9e4066Sahrens return (mdb_call_dcmd("vdev", (uintptr_t)spa.spa_root_vdev, 1531fa9e4066Sahrens flags, 1, &v)); 1532fa9e4066Sahrens } 1533fa9e4066Sahrens 1534ccae0b50Seschrock /* 1535ccae0b50Seschrock * ::zio 1536ccae0b50Seschrock * 1537ccae0b50Seschrock * Print a summary of zio_t and all its children. This is intended to display a 1538ccae0b50Seschrock * zio tree, and hence we only pick the most important pieces of information for 1539ccae0b50Seschrock * the main summary. More detailed information can always be found by doing a 1540ccae0b50Seschrock * '::print zio' on the underlying zio_t. The columns we display are: 1541ccae0b50Seschrock * 1542ccae0b50Seschrock * ADDRESS TYPE STAGE WAITER 1543ccae0b50Seschrock * 1544ccae0b50Seschrock * The 'address' column is indented by one space for each depth level as we 1545ccae0b50Seschrock * descend down the tree. 1546ccae0b50Seschrock */ 1547fac3008cSeschrock 1548fac3008cSeschrock #define ZIO_MAXDEPTH 16 1549fac3008cSeschrock 1550ccae0b50Seschrock static int 1551ccae0b50Seschrock zio_print_cb(uintptr_t addr, const void *data, void *priv) 1552ccae0b50Seschrock { 1553ccae0b50Seschrock const zio_t *zio = data; 1554ccae0b50Seschrock uintptr_t depth = (uintptr_t)priv; 1555ccae0b50Seschrock mdb_ctf_id_t type_enum, stage_enum; 1556ccae0b50Seschrock const char *type, *stage; 1557ccae0b50Seschrock int maxdepth; 1558ccae0b50Seschrock 1559fac3008cSeschrock maxdepth = sizeof (uintptr_t) * 2 + ZIO_MAXDEPTH; 1560fac3008cSeschrock if (depth > ZIO_MAXDEPTH) 1561fac3008cSeschrock depth = ZIO_MAXDEPTH; 1562ccae0b50Seschrock 1563ccae0b50Seschrock if (mdb_ctf_lookup_by_name("enum zio_type", &type_enum) == -1 || 1564ccae0b50Seschrock mdb_ctf_lookup_by_name("enum zio_stage", &stage_enum) == -1) { 1565ccae0b50Seschrock mdb_warn("failed to lookup zio enums"); 1566ccae0b50Seschrock return (WALK_ERR); 1567ccae0b50Seschrock } 1568ccae0b50Seschrock 1569ccae0b50Seschrock if ((type = mdb_ctf_enum_name(type_enum, zio->io_type)) != NULL) 1570ccae0b50Seschrock type += sizeof ("ZIO_TYPE_") - 1; 1571ccae0b50Seschrock else 1572ccae0b50Seschrock type = "?"; 1573ccae0b50Seschrock 1574ccae0b50Seschrock if ((stage = mdb_ctf_enum_name(stage_enum, zio->io_stage)) != NULL) 1575ccae0b50Seschrock stage += sizeof ("ZIO_STAGE_") - 1; 1576ccae0b50Seschrock else 1577ccae0b50Seschrock stage = "?"; 1578ccae0b50Seschrock 1579ccae0b50Seschrock 1580ccae0b50Seschrock mdb_printf("%*s%-*p %-5s %-22s ", 1581ccae0b50Seschrock depth, "", maxdepth - depth, addr, type, stage); 1582ccae0b50Seschrock if (zio->io_waiter) 1583ccae0b50Seschrock mdb_printf("%?p\n", zio->io_waiter); 1584ccae0b50Seschrock else 1585ccae0b50Seschrock mdb_printf("-\n"); 1586ccae0b50Seschrock 1587ccae0b50Seschrock if (mdb_pwalk("zio_child", zio_print_cb, (void *)(depth + 1), 1588ccae0b50Seschrock addr) != 0) { 1589ccae0b50Seschrock mdb_warn("failed to walk zio_t children at %p\n", addr); 1590ccae0b50Seschrock return (WALK_ERR); 1591ccae0b50Seschrock } 1592ccae0b50Seschrock 1593ccae0b50Seschrock return (WALK_NEXT); 1594ccae0b50Seschrock } 1595ccae0b50Seschrock 1596ccae0b50Seschrock /*ARGSUSED*/ 1597ccae0b50Seschrock static int 1598ccae0b50Seschrock zio_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1599ccae0b50Seschrock { 1600ccae0b50Seschrock zio_t zio; 1601fac3008cSeschrock int maxdepth; 1602fac3008cSeschrock 1603fac3008cSeschrock maxdepth = sizeof (uintptr_t) * 2 + ZIO_MAXDEPTH; 1604ccae0b50Seschrock 1605ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1606ccae0b50Seschrock return (DCMD_USAGE); 1607ccae0b50Seschrock 1608ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio_t), addr) == -1) { 1609ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", addr); 1610ccae0b50Seschrock return (DCMD_ERR); 1611ccae0b50Seschrock } 1612ccae0b50Seschrock 1613fac3008cSeschrock if (DCMD_HDRSPEC(flags)) 1614fac3008cSeschrock mdb_printf("%<u>%-*s %-5s %-22s %-?s%</u>\n", maxdepth, 1615fac3008cSeschrock "ADDRESS", "TYPE", "STAGE", "WAITER"); 1616fac3008cSeschrock 1617ccae0b50Seschrock if (zio_print_cb(addr, &zio, NULL) != WALK_NEXT) 1618ccae0b50Seschrock return (DCMD_ERR); 1619ccae0b50Seschrock 1620ccae0b50Seschrock return (DCMD_OK); 1621ccae0b50Seschrock } 1622ccae0b50Seschrock 1623ccae0b50Seschrock /* 1624ccae0b50Seschrock * [addr]::zio_state 1625ccae0b50Seschrock * 1626ccae0b50Seschrock * Print a summary of all zio_t structures on the system, or for a particular 1627ccae0b50Seschrock * pool. This is equivalent to '::walk zio_root | ::zio'. 1628ccae0b50Seschrock */ 1629ccae0b50Seschrock /*ARGSUSED*/ 1630ccae0b50Seschrock static int 1631ccae0b50Seschrock zio_state(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1632ccae0b50Seschrock { 1633ccae0b50Seschrock /* 1634ccae0b50Seschrock * MDB will remember the last address of the pipeline, so if we don't 1635ccae0b50Seschrock * zero this we'll end up trying to walk zio structures for a 1636ccae0b50Seschrock * non-existent spa_t. 1637ccae0b50Seschrock */ 1638ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1639ccae0b50Seschrock addr = 0; 1640ccae0b50Seschrock 1641ccae0b50Seschrock return (mdb_pwalk_dcmd("zio_root", "zio", argc, argv, addr)); 1642ccae0b50Seschrock } 1643ccae0b50Seschrock 1644fa9e4066Sahrens typedef struct txg_list_walk_data { 1645fa9e4066Sahrens uintptr_t lw_head[TXG_SIZE]; 1646fa9e4066Sahrens int lw_txgoff; 1647fa9e4066Sahrens int lw_maxoff; 1648fa9e4066Sahrens size_t lw_offset; 1649fa9e4066Sahrens void *lw_obj; 1650fa9e4066Sahrens } txg_list_walk_data_t; 1651fa9e4066Sahrens 1652fa9e4066Sahrens static int 1653fa9e4066Sahrens txg_list_walk_init_common(mdb_walk_state_t *wsp, int txg, int maxoff) 1654fa9e4066Sahrens { 1655fa9e4066Sahrens txg_list_walk_data_t *lwd; 1656fa9e4066Sahrens txg_list_t list; 1657fa9e4066Sahrens int i; 1658fa9e4066Sahrens 1659fa9e4066Sahrens lwd = mdb_alloc(sizeof (txg_list_walk_data_t), UM_SLEEP | UM_GC); 1660fa9e4066Sahrens if (mdb_vread(&list, sizeof (txg_list_t), wsp->walk_addr) == -1) { 1661fa9e4066Sahrens mdb_warn("failed to read txg_list_t at %#lx", wsp->walk_addr); 1662fa9e4066Sahrens return (WALK_ERR); 1663fa9e4066Sahrens } 1664fa9e4066Sahrens 1665fa9e4066Sahrens for (i = 0; i < TXG_SIZE; i++) 1666fa9e4066Sahrens lwd->lw_head[i] = (uintptr_t)list.tl_head[i]; 1667fa9e4066Sahrens lwd->lw_offset = list.tl_offset; 1668fa9e4066Sahrens lwd->lw_obj = mdb_alloc(lwd->lw_offset + sizeof (txg_node_t), 1669fa9e4066Sahrens UM_SLEEP | UM_GC); 1670fa9e4066Sahrens lwd->lw_txgoff = txg; 1671fa9e4066Sahrens lwd->lw_maxoff = maxoff; 1672fa9e4066Sahrens 1673fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1674fa9e4066Sahrens wsp->walk_data = lwd; 1675fa9e4066Sahrens 1676fa9e4066Sahrens return (WALK_NEXT); 1677fa9e4066Sahrens } 1678fa9e4066Sahrens 1679fa9e4066Sahrens static int 1680fa9e4066Sahrens txg_list_walk_init(mdb_walk_state_t *wsp) 1681fa9e4066Sahrens { 1682fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, TXG_SIZE-1)); 1683fa9e4066Sahrens } 1684fa9e4066Sahrens 1685fa9e4066Sahrens static int 1686fa9e4066Sahrens txg_list0_walk_init(mdb_walk_state_t *wsp) 1687fa9e4066Sahrens { 1688fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, 0)); 1689fa9e4066Sahrens } 1690fa9e4066Sahrens 1691fa9e4066Sahrens static int 1692fa9e4066Sahrens txg_list1_walk_init(mdb_walk_state_t *wsp) 1693fa9e4066Sahrens { 1694fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 1, 1)); 1695fa9e4066Sahrens } 1696fa9e4066Sahrens 1697fa9e4066Sahrens static int 1698fa9e4066Sahrens txg_list2_walk_init(mdb_walk_state_t *wsp) 1699fa9e4066Sahrens { 1700fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 2, 2)); 1701fa9e4066Sahrens } 1702fa9e4066Sahrens 1703fa9e4066Sahrens static int 1704fa9e4066Sahrens txg_list3_walk_init(mdb_walk_state_t *wsp) 1705fa9e4066Sahrens { 1706fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 3, 3)); 1707fa9e4066Sahrens } 1708fa9e4066Sahrens 1709fa9e4066Sahrens static int 1710fa9e4066Sahrens txg_list_walk_step(mdb_walk_state_t *wsp) 1711fa9e4066Sahrens { 1712fa9e4066Sahrens txg_list_walk_data_t *lwd = wsp->walk_data; 1713fa9e4066Sahrens uintptr_t addr; 1714fa9e4066Sahrens txg_node_t *node; 1715fa9e4066Sahrens int status; 1716fa9e4066Sahrens 1717fa9e4066Sahrens while (wsp->walk_addr == NULL && lwd->lw_txgoff < lwd->lw_maxoff) { 1718fa9e4066Sahrens lwd->lw_txgoff++; 1719fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1720fa9e4066Sahrens } 1721fa9e4066Sahrens 1722fa9e4066Sahrens if (wsp->walk_addr == NULL) 1723fa9e4066Sahrens return (WALK_DONE); 1724fa9e4066Sahrens 1725fa9e4066Sahrens addr = wsp->walk_addr - lwd->lw_offset; 1726fa9e4066Sahrens 1727fa9e4066Sahrens if (mdb_vread(lwd->lw_obj, 1728fa9e4066Sahrens lwd->lw_offset + sizeof (txg_node_t), addr) == -1) { 1729fa9e4066Sahrens mdb_warn("failed to read list element at %#lx", addr); 1730fa9e4066Sahrens return (WALK_ERR); 1731fa9e4066Sahrens } 1732fa9e4066Sahrens 1733fa9e4066Sahrens status = wsp->walk_callback(addr, lwd->lw_obj, wsp->walk_cbdata); 1734fa9e4066Sahrens node = (txg_node_t *)((uintptr_t)lwd->lw_obj + lwd->lw_offset); 1735fa9e4066Sahrens wsp->walk_addr = (uintptr_t)node->tn_next[lwd->lw_txgoff]; 1736fa9e4066Sahrens 1737fa9e4066Sahrens return (status); 1738fa9e4066Sahrens } 1739fa9e4066Sahrens 1740fa9e4066Sahrens /* 1741fa9e4066Sahrens * ::walk spa 1742fa9e4066Sahrens * 1743fa9e4066Sahrens * Walk all named spa_t structures in the namespace. This is nothing more than 1744fa9e4066Sahrens * a layered avl walk. 1745fa9e4066Sahrens */ 1746fa9e4066Sahrens static int 1747fa9e4066Sahrens spa_walk_init(mdb_walk_state_t *wsp) 1748fa9e4066Sahrens { 1749fa9e4066Sahrens GElf_Sym sym; 1750fa9e4066Sahrens 1751fa9e4066Sahrens if (wsp->walk_addr != NULL) { 1752fa9e4066Sahrens mdb_warn("spa walk only supports global walks\n"); 1753fa9e4066Sahrens return (WALK_ERR); 1754fa9e4066Sahrens } 1755fa9e4066Sahrens 1756fa9e4066Sahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "spa_namespace_avl", &sym) == -1) { 1757fa9e4066Sahrens mdb_warn("failed to find symbol 'spa_namespace_avl'"); 1758fa9e4066Sahrens return (WALK_ERR); 1759fa9e4066Sahrens } 1760fa9e4066Sahrens 1761fa9e4066Sahrens wsp->walk_addr = (uintptr_t)sym.st_value; 1762fa9e4066Sahrens 1763fa9e4066Sahrens if (mdb_layered_walk("avl", wsp) == -1) { 1764fa9e4066Sahrens mdb_warn("failed to walk 'avl'\n"); 1765fa9e4066Sahrens return (WALK_ERR); 1766fa9e4066Sahrens } 1767fa9e4066Sahrens 1768fa9e4066Sahrens return (WALK_NEXT); 1769fa9e4066Sahrens } 1770fa9e4066Sahrens 1771fa9e4066Sahrens static int 1772fa9e4066Sahrens spa_walk_step(mdb_walk_state_t *wsp) 1773fa9e4066Sahrens { 1774fa9e4066Sahrens spa_t spa; 1775fa9e4066Sahrens 1776fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), wsp->walk_addr) == -1) { 1777fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", wsp->walk_addr); 1778fa9e4066Sahrens return (WALK_ERR); 1779fa9e4066Sahrens } 1780fa9e4066Sahrens 1781fa9e4066Sahrens return (wsp->walk_callback(wsp->walk_addr, &spa, wsp->walk_cbdata)); 1782fa9e4066Sahrens } 1783fa9e4066Sahrens 1784fa9e4066Sahrens /* 1785ccae0b50Seschrock * [addr]::walk zio 1786ccae0b50Seschrock * 1787ccae0b50Seschrock * Walk all active zio_t structures on the system. This is simply a layered 1788ccae0b50Seschrock * walk on top of ::walk zio_cache, with the optional ability to limit the 1789ccae0b50Seschrock * structures to a particular pool. 1790ccae0b50Seschrock */ 1791ccae0b50Seschrock static int 1792ccae0b50Seschrock zio_walk_init(mdb_walk_state_t *wsp) 1793ccae0b50Seschrock { 1794ccae0b50Seschrock wsp->walk_data = (void *)wsp->walk_addr; 1795ccae0b50Seschrock 1796ccae0b50Seschrock if (mdb_layered_walk("zio_cache", wsp) == -1) { 1797ccae0b50Seschrock mdb_warn("failed to walk 'zio_cache'\n"); 1798ccae0b50Seschrock return (WALK_ERR); 1799ccae0b50Seschrock } 1800ccae0b50Seschrock 1801ccae0b50Seschrock return (WALK_NEXT); 1802ccae0b50Seschrock } 1803ccae0b50Seschrock 1804ccae0b50Seschrock static int 1805ccae0b50Seschrock zio_walk_step(mdb_walk_state_t *wsp) 1806ccae0b50Seschrock { 1807ccae0b50Seschrock zio_t zio; 1808ccae0b50Seschrock 1809ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1810ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1811ccae0b50Seschrock return (WALK_ERR); 1812ccae0b50Seschrock } 1813ccae0b50Seschrock 1814ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1815ccae0b50Seschrock return (WALK_NEXT); 1816ccae0b50Seschrock 1817ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1818ccae0b50Seschrock } 1819ccae0b50Seschrock 1820ccae0b50Seschrock /* 1821ccae0b50Seschrock * ::walk zio_child 1822ccae0b50Seschrock * 1823ccae0b50Seschrock * Walk the children of a zio_t structure. 1824ccae0b50Seschrock */ 1825ccae0b50Seschrock static int 1826ccae0b50Seschrock zio_child_walk_init(mdb_walk_state_t *wsp) 1827ccae0b50Seschrock { 1828ccae0b50Seschrock zio_t zio; 1829ccae0b50Seschrock 1830ccae0b50Seschrock if (wsp->walk_addr == 0) { 1831ccae0b50Seschrock mdb_warn("::walk zio_child doesn't support global walks\n"); 1832ccae0b50Seschrock return (WALK_ERR); 1833ccae0b50Seschrock } 1834ccae0b50Seschrock 1835ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1836ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1837ccae0b50Seschrock return (WALK_ERR); 1838ccae0b50Seschrock } 1839ccae0b50Seschrock 1840ccae0b50Seschrock wsp->walk_addr = (uintptr_t)zio.io_child; 1841ccae0b50Seschrock return (WALK_NEXT); 1842ccae0b50Seschrock } 1843ccae0b50Seschrock 1844ccae0b50Seschrock static int 1845ccae0b50Seschrock zio_sibling_walk_step(mdb_walk_state_t *wsp) 1846ccae0b50Seschrock { 1847ccae0b50Seschrock zio_t zio; 1848ccae0b50Seschrock int status; 1849ccae0b50Seschrock 1850ccae0b50Seschrock if (wsp->walk_addr == NULL) 1851ccae0b50Seschrock return (WALK_DONE); 1852ccae0b50Seschrock 1853ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1854ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1855ccae0b50Seschrock return (WALK_ERR); 1856ccae0b50Seschrock } 1857ccae0b50Seschrock 1858ccae0b50Seschrock status = wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata); 1859ccae0b50Seschrock 1860ccae0b50Seschrock wsp->walk_addr = (uintptr_t)zio.io_sibling_next; 1861ccae0b50Seschrock return (status); 1862ccae0b50Seschrock } 1863ccae0b50Seschrock 1864ccae0b50Seschrock /* 1865ccae0b50Seschrock * [addr]::walk zio_root 1866ccae0b50Seschrock * 1867ccae0b50Seschrock * Walk only root zio_t structures, optionally for a particular spa_t. 1868ccae0b50Seschrock */ 1869ccae0b50Seschrock static int 1870ccae0b50Seschrock zio_walk_root_step(mdb_walk_state_t *wsp) 1871ccae0b50Seschrock { 1872ccae0b50Seschrock zio_t zio; 1873ccae0b50Seschrock 1874ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1875ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1876ccae0b50Seschrock return (WALK_ERR); 1877ccae0b50Seschrock } 1878ccae0b50Seschrock 1879ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1880ccae0b50Seschrock return (WALK_NEXT); 1881ccae0b50Seschrock 1882ccae0b50Seschrock if ((uintptr_t)zio.io_root != wsp->walk_addr) 1883ccae0b50Seschrock return (WALK_NEXT); 1884ccae0b50Seschrock 1885ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1886ccae0b50Seschrock } 1887ccae0b50Seschrock 1888ccae0b50Seschrock /* 1889fa9e4066Sahrens * MDB module linkage information: 1890fa9e4066Sahrens * 1891fa9e4066Sahrens * We declare a list of structures describing our dcmds, and a function 1892fa9e4066Sahrens * named _mdb_init to return a pointer to our module information. 1893fa9e4066Sahrens */ 1894fa9e4066Sahrens 1895fa9e4066Sahrens static const mdb_dcmd_t dcmds[] = { 189691ebeef5Sahrens { "arc", "[-bkmg]", "print ARC variables", arc_print }, 1897fa9e4066Sahrens { "blkptr", ":", "print blkptr_t", blkptr }, 1898fa9e4066Sahrens { "dbuf", ":", "print dmu_buf_impl_t", dbuf }, 1899fa9e4066Sahrens { "dbuf_stats", ":", "dbuf stats", dbuf_stats }, 1900fa9e4066Sahrens { "dbufs", 19013cb34c60Sahrens "\t[-O objset_impl_t*] [-n objset_name | \"mos\"] " 19023cb34c60Sahrens "[-o object | \"mdn\"] \n" 1903fa9e4066Sahrens "\t[-l level] [-b blkid | \"bonus\"]", 190491ebeef5Sahrens "find dmu_buf_impl_t's that match specified criteria", dbufs }, 1905fa9e4066Sahrens { "abuf_find", "dva_word[0] dva_word[1]", 1906fa9e4066Sahrens "find arc_buf_hdr_t of a specified DVA", 1907fa9e4066Sahrens abuf_find }, 1908fa9e4066Sahrens { "spa", "?[-cv]", "spa_t summary", spa_print }, 1909fa9e4066Sahrens { "spa_config", ":", "print spa_t configuration", spa_print_config }, 1910fa9e4066Sahrens { "spa_verify", ":", "verify spa_t consistency", spa_verify }, 1911fa9e4066Sahrens { "spa_space", ":[-b]", "print spa_t on-disk space usage", spa_space }, 1912fa9e4066Sahrens { "spa_vdevs", ":", "given a spa_t, print vdev summary", spa_vdevs }, 191391ebeef5Sahrens { "vdev", ":[-re]\n" 191491ebeef5Sahrens "\t-r display recursively\n" 191591ebeef5Sahrens "\t-e print statistics\n", 191691ebeef5Sahrens "vdev_t summary", vdev_print }, 1917ccae0b50Seschrock { "zio", ":", "zio_t summary", zio_print }, 1918ccae0b50Seschrock { "zio_state", "?", "print out all zio_t structures on system or " 1919ccae0b50Seschrock "for a particular pool", zio_state }, 1920fa9e4066Sahrens { "zio_pipeline", ":", "decode a zio pipeline", zio_pipeline }, 1921614409b5Sahrens { "zfs_params", "", "print zfs tunable parameters", zfs_params }, 1922fa9e4066Sahrens { NULL } 1923fa9e4066Sahrens }; 1924fa9e4066Sahrens 1925fa9e4066Sahrens static const mdb_walker_t walkers[] = { 1926fa9e4066Sahrens /* 1927fa9e4066Sahrens * In userland, there is no generic provider of list_t walkers, so we 1928fa9e4066Sahrens * need to add it. 1929fa9e4066Sahrens */ 1930fa9e4066Sahrens #ifndef _KERNEL 1931fa9e4066Sahrens { LIST_WALK_NAME, LIST_WALK_DESC, 1932fa9e4066Sahrens list_walk_init, list_walk_step, list_walk_fini }, 1933fa9e4066Sahrens #endif 1934fa9e4066Sahrens { "zms_freelist", "walk ZFS metaslab freelist", 19355f5f7a6fSahrens freelist_walk_init, freelist_walk_step, NULL }, 1936fa9e4066Sahrens { "txg_list", "given any txg_list_t *, walk all entries in all txgs", 19375f5f7a6fSahrens txg_list_walk_init, txg_list_walk_step, NULL }, 1938fa9e4066Sahrens { "txg_list0", "given any txg_list_t *, walk all entries in txg 0", 19395f5f7a6fSahrens txg_list0_walk_init, txg_list_walk_step, NULL }, 1940fa9e4066Sahrens { "txg_list1", "given any txg_list_t *, walk all entries in txg 1", 19415f5f7a6fSahrens txg_list1_walk_init, txg_list_walk_step, NULL }, 1942fa9e4066Sahrens { "txg_list2", "given any txg_list_t *, walk all entries in txg 2", 19435f5f7a6fSahrens txg_list2_walk_init, txg_list_walk_step, NULL }, 1944fa9e4066Sahrens { "txg_list3", "given any txg_list_t *, walk all entries in txg 3", 19455f5f7a6fSahrens txg_list3_walk_init, txg_list_walk_step, NULL }, 1946ccae0b50Seschrock { "zio", "walk all zio structures, optionally for a particular spa_t", 1947ccae0b50Seschrock zio_walk_init, zio_walk_step, NULL }, 1948ccae0b50Seschrock { "zio_child", "walk children of a zio_t structure", 1949ccae0b50Seschrock zio_child_walk_init, zio_sibling_walk_step, NULL }, 1950ccae0b50Seschrock { "zio_root", "walk all root zio_t structures, optionally for a " 1951ccae0b50Seschrock "particular spa_t", 1952ccae0b50Seschrock zio_walk_init, zio_walk_root_step, NULL }, 1953fa9e4066Sahrens { "spa", "walk all spa_t entries in the namespace", 1954fa9e4066Sahrens spa_walk_init, spa_walk_step, NULL }, 19555f5f7a6fSahrens { "metaslab", "given a spa_t *, walk all metaslab_t structures", 19565f5f7a6fSahrens metaslab_walk_init, metaslab_walk_step, NULL }, 1957fa9e4066Sahrens { NULL } 1958fa9e4066Sahrens }; 1959fa9e4066Sahrens 1960fa9e4066Sahrens static const mdb_modinfo_t modinfo = { 1961fa9e4066Sahrens MDB_API_VERSION, dcmds, walkers 1962fa9e4066Sahrens }; 1963fa9e4066Sahrens 1964fa9e4066Sahrens const mdb_modinfo_t * 1965fa9e4066Sahrens _mdb_init(void) 1966fa9e4066Sahrens { 1967fa9e4066Sahrens return (&modinfo); 1968fa9e4066Sahrens } 1969