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 /* 221195e687SMark J Musante * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #include <mdb/mdb_ctf.h> 27fa9e4066Sahrens #include <sys/zfs_context.h> 28fa9e4066Sahrens #include <sys/mdb_modapi.h> 29fa9e4066Sahrens #include <sys/dbuf.h> 30fa9e4066Sahrens #include <sys/dmu_objset.h> 31fa9e4066Sahrens #include <sys/dsl_dir.h> 32fa9e4066Sahrens #include <sys/dsl_pool.h> 33fa9e4066Sahrens #include <sys/metaslab_impl.h> 34fa9e4066Sahrens #include <sys/space_map.h> 35fa9e4066Sahrens #include <sys/list.h> 36fa9e4066Sahrens #include <sys/spa_impl.h> 37fa9e4066Sahrens #include <sys/vdev_impl.h> 383f1f8012SMatthew Ahrens #include <sys/zap_leaf.h> 393f1f8012SMatthew Ahrens #include <sys/zap_impl.h> 409966ca11SMatthew Ahrens #include <ctype.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 52*feef89cfSVictor Latushkin #ifndef _KERNEL 53*feef89cfSVictor Latushkin int aok; 54*feef89cfSVictor Latushkin #endif 55*feef89cfSVictor Latushkin 56fa9e4066Sahrens static int 57fa9e4066Sahrens getmember(uintptr_t addr, const char *type, mdb_ctf_id_t *idp, 58fa9e4066Sahrens const char *member, int len, void *buf) 59fa9e4066Sahrens { 60fa9e4066Sahrens mdb_ctf_id_t id; 61fa9e4066Sahrens ulong_t off; 62fa9e4066Sahrens char name[64]; 63fa9e4066Sahrens 64fa9e4066Sahrens if (idp == NULL) { 65fa9e4066Sahrens if (mdb_ctf_lookup_by_name(type, &id) == -1) { 66fa9e4066Sahrens mdb_warn("couldn't find type %s", type); 67fa9e4066Sahrens return (DCMD_ERR); 68fa9e4066Sahrens } 69fa9e4066Sahrens idp = &id; 70fa9e4066Sahrens } else { 71fa9e4066Sahrens type = name; 72fa9e4066Sahrens mdb_ctf_type_name(*idp, name, sizeof (name)); 73fa9e4066Sahrens } 74fa9e4066Sahrens 75fa9e4066Sahrens if (mdb_ctf_offsetof(*idp, member, &off) == -1) { 76fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, type); 77fa9e4066Sahrens return (DCMD_ERR); 78fa9e4066Sahrens } 79fa9e4066Sahrens if (off % 8 != 0) { 80fa9e4066Sahrens mdb_warn("member %s of type %s is unsupported bitfield", 81fa9e4066Sahrens member, type); 82fa9e4066Sahrens return (DCMD_ERR); 83fa9e4066Sahrens } 84fa9e4066Sahrens off /= 8; 85fa9e4066Sahrens 86fa9e4066Sahrens if (mdb_vread(buf, len, addr + off) == -1) { 87fa9e4066Sahrens mdb_warn("failed to read %s from %s at %p", 88fa9e4066Sahrens member, type, addr + off); 89fa9e4066Sahrens return (DCMD_ERR); 90fa9e4066Sahrens } 91fa9e4066Sahrens /* mdb_warn("read %s from %s at %p+%llx\n", member, type, addr, off); */ 92fa9e4066Sahrens 93fa9e4066Sahrens return (0); 94fa9e4066Sahrens } 95fa9e4066Sahrens 96fa9e4066Sahrens #define GETMEMB(addr, type, member, dest) \ 97fa9e4066Sahrens getmember(addr, #type, NULL, #member, sizeof (dest), &(dest)) 98fa9e4066Sahrens 99fa9e4066Sahrens #define GETMEMBID(addr, ctfid, member, dest) \ 100fa9e4066Sahrens getmember(addr, NULL, ctfid, #member, sizeof (dest), &(dest)) 101fa9e4066Sahrens 102fa9e4066Sahrens static int 103fa9e4066Sahrens getrefcount(uintptr_t addr, mdb_ctf_id_t *id, 104fa9e4066Sahrens const char *member, uint64_t *rc) 105fa9e4066Sahrens { 106fa9e4066Sahrens static int gotid; 107fa9e4066Sahrens static mdb_ctf_id_t rc_id; 108fa9e4066Sahrens ulong_t off; 109fa9e4066Sahrens 110fa9e4066Sahrens if (!gotid) { 111fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) { 112fa9e4066Sahrens mdb_warn("couldn't find struct refcount"); 113fa9e4066Sahrens return (DCMD_ERR); 114fa9e4066Sahrens } 115fa9e4066Sahrens gotid = TRUE; 116fa9e4066Sahrens } 117fa9e4066Sahrens 118fa9e4066Sahrens if (mdb_ctf_offsetof(*id, member, &off) == -1) { 119fa9e4066Sahrens char name[64]; 120fa9e4066Sahrens mdb_ctf_type_name(*id, name, sizeof (name)); 121fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, name); 122fa9e4066Sahrens return (DCMD_ERR); 123fa9e4066Sahrens } 124fa9e4066Sahrens off /= 8; 125fa9e4066Sahrens 126fa9e4066Sahrens return (GETMEMBID(addr + off, &rc_id, rc_count, *rc)); 127fa9e4066Sahrens } 128fa9e4066Sahrens 129fa9e4066Sahrens static int verbose; 130fa9e4066Sahrens 131fa9e4066Sahrens static int 132fa9e4066Sahrens freelist_walk_init(mdb_walk_state_t *wsp) 133fa9e4066Sahrens { 134fa9e4066Sahrens if (wsp->walk_addr == NULL) { 135fa9e4066Sahrens mdb_warn("must supply starting address\n"); 136fa9e4066Sahrens return (WALK_ERR); 137fa9e4066Sahrens } 138fa9e4066Sahrens 139fa9e4066Sahrens wsp->walk_data = 0; /* Index into the freelist */ 140fa9e4066Sahrens return (WALK_NEXT); 141fa9e4066Sahrens } 142fa9e4066Sahrens 143fa9e4066Sahrens static int 144fa9e4066Sahrens freelist_walk_step(mdb_walk_state_t *wsp) 145fa9e4066Sahrens { 146fa9e4066Sahrens uint64_t entry; 147fa9e4066Sahrens uintptr_t number = (uintptr_t)wsp->walk_data; 1488053a263Sck char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 1498053a263Sck "INVALID", "INVALID", "INVALID", "INVALID" }; 150fa9e4066Sahrens int mapshift = SPA_MINBLOCKSHIFT; 151fa9e4066Sahrens 152fa9e4066Sahrens if (mdb_vread(&entry, sizeof (entry), wsp->walk_addr) == -1) { 153fa9e4066Sahrens mdb_warn("failed to read freelist entry %p", wsp->walk_addr); 154fa9e4066Sahrens return (WALK_DONE); 155fa9e4066Sahrens } 156fa9e4066Sahrens wsp->walk_addr += sizeof (entry); 157fa9e4066Sahrens wsp->walk_data = (void *)(number + 1); 158fa9e4066Sahrens 159fa9e4066Sahrens if (SM_DEBUG_DECODE(entry)) { 160fa9e4066Sahrens mdb_printf("DEBUG: %3u %10s: txg=%llu pass=%llu\n", 161fa9e4066Sahrens number, 162fa9e4066Sahrens ddata[SM_DEBUG_ACTION_DECODE(entry)], 163fa9e4066Sahrens SM_DEBUG_TXG_DECODE(entry), 164fa9e4066Sahrens SM_DEBUG_SYNCPASS_DECODE(entry)); 165fa9e4066Sahrens } else { 166fa9e4066Sahrens mdb_printf("Entry: %3u offsets=%08llx-%08llx type=%c " 167fa9e4066Sahrens "size=%06llx", number, 168fa9e4066Sahrens SM_OFFSET_DECODE(entry) << mapshift, 169fa9e4066Sahrens (SM_OFFSET_DECODE(entry) + SM_RUN_DECODE(entry)) << 170fa9e4066Sahrens mapshift, 171fa9e4066Sahrens SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 172fa9e4066Sahrens SM_RUN_DECODE(entry) << mapshift); 173fa9e4066Sahrens if (verbose) 174fa9e4066Sahrens mdb_printf(" (raw=%012llx)\n", entry); 175fa9e4066Sahrens mdb_printf("\n"); 176fa9e4066Sahrens } 177fa9e4066Sahrens return (WALK_NEXT); 178fa9e4066Sahrens } 179fa9e4066Sahrens 180fa9e4066Sahrens 181fa9e4066Sahrens static int 182fa9e4066Sahrens dataset_name(uintptr_t addr, char *buf) 183fa9e4066Sahrens { 184fa9e4066Sahrens static int gotid; 185fa9e4066Sahrens static mdb_ctf_id_t dd_id; 186fa9e4066Sahrens uintptr_t dd_parent; 187fa9e4066Sahrens char dd_myname[MAXNAMELEN]; 188fa9e4066Sahrens 189fa9e4066Sahrens if (!gotid) { 190fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dir", 191fa9e4066Sahrens &dd_id) == -1) { 192fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dir"); 193fa9e4066Sahrens return (DCMD_ERR); 194fa9e4066Sahrens } 195fa9e4066Sahrens gotid = TRUE; 196fa9e4066Sahrens } 197fa9e4066Sahrens if (GETMEMBID(addr, &dd_id, dd_parent, dd_parent) || 198fa9e4066Sahrens GETMEMBID(addr, &dd_id, dd_myname, dd_myname)) { 199fa9e4066Sahrens return (DCMD_ERR); 200fa9e4066Sahrens } 201fa9e4066Sahrens 202fa9e4066Sahrens if (dd_parent) { 203fa9e4066Sahrens if (dataset_name(dd_parent, buf)) 204fa9e4066Sahrens return (DCMD_ERR); 205fa9e4066Sahrens strcat(buf, "/"); 206fa9e4066Sahrens } 207fa9e4066Sahrens 208fa9e4066Sahrens if (dd_myname[0]) 209fa9e4066Sahrens strcat(buf, dd_myname); 210fa9e4066Sahrens else 211fa9e4066Sahrens strcat(buf, "???"); 212fa9e4066Sahrens 213fa9e4066Sahrens return (0); 214fa9e4066Sahrens } 215fa9e4066Sahrens 216fa9e4066Sahrens static int 217fa9e4066Sahrens objset_name(uintptr_t addr, char *buf) 218fa9e4066Sahrens { 219fa9e4066Sahrens static int gotid; 220503ad85cSMatthew Ahrens static mdb_ctf_id_t os_id, ds_id; 221fa9e4066Sahrens uintptr_t os_dsl_dataset; 222fa9e4066Sahrens char ds_snapname[MAXNAMELEN]; 223fa9e4066Sahrens uintptr_t ds_dir; 224fa9e4066Sahrens 225fa9e4066Sahrens buf[0] = '\0'; 226fa9e4066Sahrens 227fa9e4066Sahrens if (!gotid) { 228503ad85cSMatthew Ahrens if (mdb_ctf_lookup_by_name("struct objset", 229503ad85cSMatthew Ahrens &os_id) == -1) { 230503ad85cSMatthew Ahrens mdb_warn("couldn't find struct objset"); 231fa9e4066Sahrens return (DCMD_ERR); 232fa9e4066Sahrens } 233fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dataset", 234fa9e4066Sahrens &ds_id) == -1) { 235fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dataset"); 236fa9e4066Sahrens return (DCMD_ERR); 237fa9e4066Sahrens } 238fa9e4066Sahrens 239fa9e4066Sahrens gotid = TRUE; 240fa9e4066Sahrens } 241fa9e4066Sahrens 242503ad85cSMatthew Ahrens if (GETMEMBID(addr, &os_id, os_dsl_dataset, os_dsl_dataset)) 243fa9e4066Sahrens return (DCMD_ERR); 244fa9e4066Sahrens 245fa9e4066Sahrens if (os_dsl_dataset == 0) { 246fa9e4066Sahrens strcat(buf, "mos"); 247fa9e4066Sahrens return (0); 248fa9e4066Sahrens } 249fa9e4066Sahrens 250fa9e4066Sahrens if (GETMEMBID(os_dsl_dataset, &ds_id, ds_snapname, ds_snapname) || 251fa9e4066Sahrens GETMEMBID(os_dsl_dataset, &ds_id, ds_dir, ds_dir)) { 252fa9e4066Sahrens return (DCMD_ERR); 253fa9e4066Sahrens } 254fa9e4066Sahrens 255fa9e4066Sahrens if (ds_dir && dataset_name(ds_dir, buf)) 256fa9e4066Sahrens return (DCMD_ERR); 257fa9e4066Sahrens 258fa9e4066Sahrens if (ds_snapname[0]) { 259fa9e4066Sahrens strcat(buf, "@"); 260fa9e4066Sahrens strcat(buf, ds_snapname); 261fa9e4066Sahrens } 262fa9e4066Sahrens return (0); 263fa9e4066Sahrens } 264fa9e4066Sahrens 265fa9e4066Sahrens static void 266fa9e4066Sahrens enum_lookup(char *out, size_t size, mdb_ctf_id_t id, int val, 267fa9e4066Sahrens const char *prefix) 268fa9e4066Sahrens { 269fa9e4066Sahrens const char *cp; 270fa9e4066Sahrens size_t len = strlen(prefix); 271fa9e4066Sahrens 272fa9e4066Sahrens if ((cp = mdb_ctf_enum_name(id, val)) != NULL) { 273fa9e4066Sahrens if (strncmp(cp, prefix, len) == 0) 274fa9e4066Sahrens cp += len; 275fa9e4066Sahrens (void) strncpy(out, cp, size); 276fa9e4066Sahrens } else { 277fa9e4066Sahrens mdb_snprintf(out, size, "? (%d)", val); 278fa9e4066Sahrens } 279fa9e4066Sahrens } 280fa9e4066Sahrens 281614409b5Sahrens /* ARGSUSED */ 282614409b5Sahrens static int 283614409b5Sahrens zfs_params(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 284614409b5Sahrens { 285614409b5Sahrens /* 286614409b5Sahrens * This table can be approximately generated by running: 287614409b5Sahrens * egrep "^[a-z0-9_]+ [a-z0-9_]+( =.*)?;" *.c | cut -d ' ' -f 2 288614409b5Sahrens */ 289614409b5Sahrens static const char *params[] = { 290614409b5Sahrens "arc_reduce_dnlc_percent", 291614409b5Sahrens "zfs_arc_max", 292614409b5Sahrens "zfs_arc_min", 29349e3519aSmaybee "arc_shrink_shift", 294614409b5Sahrens "zfs_mdcomp_disable", 295614409b5Sahrens "zfs_prefetch_disable", 296614409b5Sahrens "zfetch_max_streams", 297614409b5Sahrens "zfetch_min_sec_reap", 298614409b5Sahrens "zfetch_block_cap", 299614409b5Sahrens "zfetch_array_rd_sz", 300614409b5Sahrens "zfs_default_bs", 301614409b5Sahrens "zfs_default_ibs", 302614409b5Sahrens "metaslab_aliquot", 303614409b5Sahrens "reference_tracking_enable", 304614409b5Sahrens "reference_history", 305614409b5Sahrens "spa_max_replication_override", 306b24ab676SJeff Bonwick "spa_mode_global", 307614409b5Sahrens "zfs_flags", 3081ab7f2deSmaybee "zfs_txg_synctime", 3091ab7f2deSmaybee "zfs_txg_timeout", 3101ab7f2deSmaybee "zfs_write_limit_min", 3111ab7f2deSmaybee "zfs_write_limit_max", 3121ab7f2deSmaybee "zfs_write_limit_shift", 3131ab7f2deSmaybee "zfs_write_limit_override", 3141ab7f2deSmaybee "zfs_no_write_throttle", 315614409b5Sahrens "zfs_vdev_cache_max", 316614409b5Sahrens "zfs_vdev_cache_size", 317614409b5Sahrens "zfs_vdev_cache_bshift", 318614409b5Sahrens "vdev_mirror_shift", 319614409b5Sahrens "zfs_vdev_max_pending", 320614409b5Sahrens "zfs_vdev_min_pending", 321614409b5Sahrens "zfs_scrub_limit", 322b16da2e2SGeorge Wilson "zfs_no_scrub_io", 323b16da2e2SGeorge Wilson "zfs_no_scrub_prefetch", 324614409b5Sahrens "zfs_vdev_time_shift", 325614409b5Sahrens "zfs_vdev_ramp_rate", 326614409b5Sahrens "zfs_vdev_aggregation_limit", 327614409b5Sahrens "fzap_default_block_shift", 328614409b5Sahrens "zfs_immediate_write_sz", 329614409b5Sahrens "zfs_read_chunk_size", 330614409b5Sahrens "zil_disable", 331614409b5Sahrens "zfs_nocacheflush", 3321ab7f2deSmaybee "metaslab_gang_bang", 333d6e555bdSGeorge Wilson "metaslab_df_alloc_threshold", 334d6e555bdSGeorge Wilson "metaslab_df_free_pct", 335614409b5Sahrens "zio_injection_enabled", 336614409b5Sahrens "zvol_immediate_write_sz", 337614409b5Sahrens }; 338614409b5Sahrens 339b24ab676SJeff Bonwick for (int i = 0; i < sizeof (params) / sizeof (params[0]); i++) { 340614409b5Sahrens int sz; 341614409b5Sahrens uint64_t val64; 342614409b5Sahrens uint32_t *val32p = (uint32_t *)&val64; 343614409b5Sahrens 344614409b5Sahrens sz = mdb_readvar(&val64, params[i]); 345614409b5Sahrens if (sz == 4) { 346614409b5Sahrens mdb_printf("%s = 0x%x\n", params[i], *val32p); 347614409b5Sahrens } else if (sz == 8) { 348614409b5Sahrens mdb_printf("%s = 0x%llx\n", params[i], val64); 349614409b5Sahrens } else { 350614409b5Sahrens mdb_warn("variable %s not found", params[i]); 351614409b5Sahrens } 352614409b5Sahrens } 353614409b5Sahrens 354614409b5Sahrens return (DCMD_OK); 355614409b5Sahrens } 356614409b5Sahrens 357fa9e4066Sahrens /* ARGSUSED */ 358fa9e4066Sahrens static int 359fa9e4066Sahrens blkptr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 360fa9e4066Sahrens { 361b24ab676SJeff Bonwick mdb_ctf_id_t type_enum, checksum_enum, compress_enum; 362b24ab676SJeff Bonwick char type[80], checksum[80], compress[80]; 363b24ab676SJeff Bonwick blkptr_t blk, *bp = &blk; 364b24ab676SJeff Bonwick char buf[BP_SPRINTF_LEN]; 365fa9e4066Sahrens 366b24ab676SJeff Bonwick if (mdb_vread(&blk, sizeof (blkptr_t), addr) == -1) { 367fa9e4066Sahrens mdb_warn("failed to read blkptr_t"); 368fa9e4066Sahrens return (DCMD_ERR); 369fa9e4066Sahrens } 370fa9e4066Sahrens 371b24ab676SJeff Bonwick if (mdb_ctf_lookup_by_name("enum dmu_object_type", &type_enum) == -1 || 372b24ab676SJeff Bonwick mdb_ctf_lookup_by_name("enum zio_checksum", &checksum_enum) == -1 || 373b24ab676SJeff Bonwick mdb_ctf_lookup_by_name("enum zio_compress", &compress_enum) == -1) { 374b24ab676SJeff Bonwick mdb_warn("Could not find blkptr enumerated types"); 375fa9e4066Sahrens return (DCMD_ERR); 376fa9e4066Sahrens } 377fa9e4066Sahrens 378b24ab676SJeff Bonwick enum_lookup(type, sizeof (type), type_enum, 379b24ab676SJeff Bonwick BP_GET_TYPE(bp), "DMU_OT_"); 380b24ab676SJeff Bonwick enum_lookup(checksum, sizeof (checksum), checksum_enum, 381b24ab676SJeff Bonwick BP_GET_CHECKSUM(bp), "ZIO_CHECKSUM_"); 382b24ab676SJeff Bonwick enum_lookup(compress, sizeof (compress), compress_enum, 383b24ab676SJeff Bonwick BP_GET_COMPRESS(bp), "ZIO_COMPRESS_"); 384fa9e4066Sahrens 385b24ab676SJeff Bonwick SPRINTF_BLKPTR(mdb_snprintf, '\n', buf, bp, type, checksum, compress); 386fa9e4066Sahrens 387b24ab676SJeff Bonwick mdb_printf("%s\n", buf); 388fa9e4066Sahrens 389fa9e4066Sahrens return (DCMD_OK); 390fa9e4066Sahrens } 391fa9e4066Sahrens 392fa9e4066Sahrens /* ARGSUSED */ 393fa9e4066Sahrens static int 394fa9e4066Sahrens dbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 395fa9e4066Sahrens { 396fa9e4066Sahrens mdb_ctf_id_t id; 397fa9e4066Sahrens dmu_buf_t db; 398fa9e4066Sahrens uintptr_t objset; 399fa9e4066Sahrens uint8_t level; 400fa9e4066Sahrens uint64_t blkid; 401fa9e4066Sahrens uint64_t holds; 402fa9e4066Sahrens char objectname[32]; 403fa9e4066Sahrens char blkidname[32]; 404fa9e4066Sahrens char path[MAXNAMELEN]; 405fa9e4066Sahrens 406fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) { 407fa9e4066Sahrens mdb_printf(" addr object lvl blkid holds os\n"); 408fa9e4066Sahrens } 409fa9e4066Sahrens 410fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &id) == -1) { 411fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 412fa9e4066Sahrens return (DCMD_ERR); 413fa9e4066Sahrens } 414fa9e4066Sahrens 415fa9e4066Sahrens if (GETMEMBID(addr, &id, db_objset, objset) || 416fa9e4066Sahrens GETMEMBID(addr, &id, db, db) || 417fa9e4066Sahrens GETMEMBID(addr, &id, db_level, level) || 418fa9e4066Sahrens GETMEMBID(addr, &id, db_blkid, blkid)) { 419fa9e4066Sahrens return (WALK_ERR); 420fa9e4066Sahrens } 421fa9e4066Sahrens 422fa9e4066Sahrens if (getrefcount(addr, &id, "db_holds", &holds)) { 423fa9e4066Sahrens return (WALK_ERR); 424fa9e4066Sahrens } 425fa9e4066Sahrens 426fa9e4066Sahrens if (db.db_object == DMU_META_DNODE_OBJECT) 427fa9e4066Sahrens (void) strcpy(objectname, "mdn"); 428fa9e4066Sahrens else 429fa9e4066Sahrens (void) mdb_snprintf(objectname, sizeof (objectname), "%llx", 430fa9e4066Sahrens (u_longlong_t)db.db_object); 431fa9e4066Sahrens 432fa9e4066Sahrens if (blkid == DB_BONUS_BLKID) 433fa9e4066Sahrens (void) strcpy(blkidname, "bonus"); 434fa9e4066Sahrens else 435fa9e4066Sahrens (void) mdb_snprintf(blkidname, sizeof (blkidname), "%llx", 436fa9e4066Sahrens (u_longlong_t)blkid); 437fa9e4066Sahrens 438fa9e4066Sahrens if (objset_name(objset, path)) { 439fa9e4066Sahrens return (WALK_ERR); 440fa9e4066Sahrens } 441fa9e4066Sahrens 442fa9e4066Sahrens mdb_printf("%p %8s %1u %9s %2llu %s\n", 443fa9e4066Sahrens addr, objectname, level, blkidname, holds, path); 444fa9e4066Sahrens 445fa9e4066Sahrens return (DCMD_OK); 446fa9e4066Sahrens } 447fa9e4066Sahrens 448fa9e4066Sahrens /* ARGSUSED */ 449fa9e4066Sahrens static int 450fa9e4066Sahrens dbuf_stats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 451fa9e4066Sahrens { 452fa9e4066Sahrens #define HISTOSZ 32 453fa9e4066Sahrens uintptr_t dbp; 454fa9e4066Sahrens dmu_buf_impl_t db; 455fa9e4066Sahrens dbuf_hash_table_t ht; 456fa9e4066Sahrens uint64_t bucket, ndbufs; 457fa9e4066Sahrens uint64_t histo[HISTOSZ]; 458fa9e4066Sahrens uint64_t histo2[HISTOSZ]; 459fa9e4066Sahrens int i, maxidx; 460fa9e4066Sahrens 461fa9e4066Sahrens if (mdb_readvar(&ht, "dbuf_hash_table") == -1) { 462fa9e4066Sahrens mdb_warn("failed to read 'dbuf_hash_table'"); 463fa9e4066Sahrens return (DCMD_ERR); 464fa9e4066Sahrens } 465fa9e4066Sahrens 466fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) { 467fa9e4066Sahrens histo[i] = 0; 468fa9e4066Sahrens histo2[i] = 0; 469fa9e4066Sahrens } 470fa9e4066Sahrens 471fa9e4066Sahrens ndbufs = 0; 472fa9e4066Sahrens for (bucket = 0; bucket < ht.hash_table_mask+1; bucket++) { 473fa9e4066Sahrens int len; 474fa9e4066Sahrens 475fa9e4066Sahrens if (mdb_vread(&dbp, sizeof (void *), 476fa9e4066Sahrens (uintptr_t)(ht.hash_table+bucket)) == -1) { 477fa9e4066Sahrens mdb_warn("failed to read hash bucket %u at %p", 478fa9e4066Sahrens bucket, ht.hash_table+bucket); 479fa9e4066Sahrens return (DCMD_ERR); 480fa9e4066Sahrens } 481fa9e4066Sahrens 482fa9e4066Sahrens len = 0; 483fa9e4066Sahrens while (dbp != 0) { 484fa9e4066Sahrens if (mdb_vread(&db, sizeof (dmu_buf_impl_t), 485fa9e4066Sahrens dbp) == -1) { 486fa9e4066Sahrens mdb_warn("failed to read dbuf at %p", dbp); 487fa9e4066Sahrens return (DCMD_ERR); 488fa9e4066Sahrens } 489fa9e4066Sahrens dbp = (uintptr_t)db.db_hash_next; 490fa9e4066Sahrens for (i = MIN(len, HISTOSZ - 1); i >= 0; i--) 491fa9e4066Sahrens histo2[i]++; 492fa9e4066Sahrens len++; 493fa9e4066Sahrens ndbufs++; 494fa9e4066Sahrens } 495fa9e4066Sahrens 496fa9e4066Sahrens if (len >= HISTOSZ) 497fa9e4066Sahrens len = HISTOSZ-1; 498fa9e4066Sahrens histo[len]++; 499fa9e4066Sahrens } 500fa9e4066Sahrens 501fa9e4066Sahrens mdb_printf("hash table has %llu buckets, %llu dbufs " 502fa9e4066Sahrens "(avg %llu buckets/dbuf)\n", 503fa9e4066Sahrens ht.hash_table_mask+1, ndbufs, 504fa9e4066Sahrens (ht.hash_table_mask+1)/ndbufs); 505fa9e4066Sahrens 506fa9e4066Sahrens mdb_printf("\n"); 507fa9e4066Sahrens maxidx = 0; 508fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 509fa9e4066Sahrens if (histo[i] > 0) 510fa9e4066Sahrens maxidx = i; 511fa9e4066Sahrens mdb_printf("hash chain length number of buckets\n"); 512fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 513fa9e4066Sahrens mdb_printf("%u %llu\n", i, histo[i]); 514fa9e4066Sahrens 515fa9e4066Sahrens mdb_printf("\n"); 516fa9e4066Sahrens maxidx = 0; 517fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 518fa9e4066Sahrens if (histo2[i] > 0) 519fa9e4066Sahrens maxidx = i; 520fa9e4066Sahrens mdb_printf("hash chain depth number of dbufs\n"); 521fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 522fa9e4066Sahrens mdb_printf("%u or more %llu %llu%%\n", 523fa9e4066Sahrens i, histo2[i], histo2[i]*100/ndbufs); 524fa9e4066Sahrens 525fa9e4066Sahrens 526fa9e4066Sahrens return (DCMD_OK); 527fa9e4066Sahrens } 528fa9e4066Sahrens 5293f1f8012SMatthew Ahrens #define CHAIN_END 0xffff 5303f1f8012SMatthew Ahrens /* 5313f1f8012SMatthew Ahrens * ::zap_leaf [-v] 5323f1f8012SMatthew Ahrens * 5333f1f8012SMatthew Ahrens * Print a zap_leaf_phys_t, assumed to be 16k 5343f1f8012SMatthew Ahrens */ 5353f1f8012SMatthew Ahrens /* ARGSUSED */ 5363f1f8012SMatthew Ahrens static int 5373f1f8012SMatthew Ahrens zap_leaf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 5383f1f8012SMatthew Ahrens { 5393f1f8012SMatthew Ahrens char buf[16*1024]; 5403f1f8012SMatthew Ahrens int verbose = B_FALSE; 5413f1f8012SMatthew Ahrens int four = B_FALSE; 5423f1f8012SMatthew Ahrens zap_leaf_t l; 5433f1f8012SMatthew Ahrens zap_leaf_phys_t *zlp = (void *)buf; 5443f1f8012SMatthew Ahrens int i; 5453f1f8012SMatthew Ahrens 5463f1f8012SMatthew Ahrens if (mdb_getopts(argc, argv, 5473f1f8012SMatthew Ahrens 'v', MDB_OPT_SETBITS, TRUE, &verbose, 5483f1f8012SMatthew Ahrens '4', MDB_OPT_SETBITS, TRUE, &four, 5493f1f8012SMatthew Ahrens NULL) != argc) 5503f1f8012SMatthew Ahrens return (DCMD_USAGE); 5513f1f8012SMatthew Ahrens 5523f1f8012SMatthew Ahrens l.l_phys = zlp; 5533f1f8012SMatthew Ahrens l.l_bs = 14; /* assume 16k blocks */ 5543f1f8012SMatthew Ahrens if (four) 5553f1f8012SMatthew Ahrens l.l_bs = 12; 5563f1f8012SMatthew Ahrens 5573f1f8012SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) { 5583f1f8012SMatthew Ahrens return (DCMD_USAGE); 5593f1f8012SMatthew Ahrens } 5603f1f8012SMatthew Ahrens 5613f1f8012SMatthew Ahrens if (mdb_vread(buf, sizeof (buf), addr) == -1) { 5623f1f8012SMatthew Ahrens mdb_warn("failed to read zap_leaf_phys_t at %p", addr); 5633f1f8012SMatthew Ahrens return (DCMD_ERR); 5643f1f8012SMatthew Ahrens } 5653f1f8012SMatthew Ahrens 5663f1f8012SMatthew Ahrens if (zlp->l_hdr.lh_block_type != ZBT_LEAF || 5673f1f8012SMatthew Ahrens zlp->l_hdr.lh_magic != ZAP_LEAF_MAGIC) { 5683f1f8012SMatthew Ahrens mdb_warn("This does not appear to be a zap_leaf_phys_t"); 5693f1f8012SMatthew Ahrens return (DCMD_ERR); 5703f1f8012SMatthew Ahrens } 5713f1f8012SMatthew Ahrens 5723f1f8012SMatthew Ahrens mdb_printf("zap_leaf_phys_t at %p:\n", addr); 5733f1f8012SMatthew Ahrens mdb_printf(" lh_prefix_len = %u\n", zlp->l_hdr.lh_prefix_len); 5743f1f8012SMatthew Ahrens mdb_printf(" lh_prefix = %llx\n", zlp->l_hdr.lh_prefix); 5753f1f8012SMatthew Ahrens mdb_printf(" lh_nentries = %u\n", zlp->l_hdr.lh_nentries); 5763f1f8012SMatthew Ahrens mdb_printf(" lh_nfree = %u\n", zlp->l_hdr.lh_nfree, 5773f1f8012SMatthew Ahrens zlp->l_hdr.lh_nfree * 100 / (ZAP_LEAF_NUMCHUNKS(&l))); 5783f1f8012SMatthew Ahrens mdb_printf(" lh_freelist = %u\n", zlp->l_hdr.lh_freelist); 5793f1f8012SMatthew Ahrens mdb_printf(" lh_flags = %x (%s)\n", zlp->l_hdr.lh_flags, 5803f1f8012SMatthew Ahrens zlp->l_hdr.lh_flags & ZLF_ENTRIES_CDSORTED ? 5813f1f8012SMatthew Ahrens "ENTRIES_CDSORTED" : ""); 5823f1f8012SMatthew Ahrens 5833f1f8012SMatthew Ahrens if (verbose) { 5843f1f8012SMatthew Ahrens mdb_printf(" hash table:\n"); 5853f1f8012SMatthew Ahrens for (i = 0; i < ZAP_LEAF_HASH_NUMENTRIES(&l); i++) { 5863f1f8012SMatthew Ahrens if (zlp->l_hash[i] != CHAIN_END) 5873f1f8012SMatthew Ahrens mdb_printf(" %u: %u\n", i, zlp->l_hash[i]); 5883f1f8012SMatthew Ahrens } 5893f1f8012SMatthew Ahrens } 5903f1f8012SMatthew Ahrens 5913f1f8012SMatthew Ahrens mdb_printf(" chunks:\n"); 5923f1f8012SMatthew Ahrens for (i = 0; i < ZAP_LEAF_NUMCHUNKS(&l); i++) { 5933f1f8012SMatthew Ahrens /* LINTED: alignment */ 5943f1f8012SMatthew Ahrens zap_leaf_chunk_t *zlc = &ZAP_LEAF_CHUNK(&l, i); 5953f1f8012SMatthew Ahrens switch (zlc->l_entry.le_type) { 5963f1f8012SMatthew Ahrens case ZAP_CHUNK_FREE: 5973f1f8012SMatthew Ahrens if (verbose) { 5983f1f8012SMatthew Ahrens mdb_printf(" %u: free; lf_next = %u\n", 5993f1f8012SMatthew Ahrens i, zlc->l_free.lf_next); 6003f1f8012SMatthew Ahrens } 6013f1f8012SMatthew Ahrens break; 6023f1f8012SMatthew Ahrens case ZAP_CHUNK_ENTRY: 6033f1f8012SMatthew Ahrens mdb_printf(" %u: entry\n", i); 6043f1f8012SMatthew Ahrens if (verbose) { 6053f1f8012SMatthew Ahrens mdb_printf(" le_next = %u\n", 6063f1f8012SMatthew Ahrens zlc->l_entry.le_next); 6073f1f8012SMatthew Ahrens } 6083f1f8012SMatthew Ahrens mdb_printf(" le_name_chunk = %u\n", 6093f1f8012SMatthew Ahrens zlc->l_entry.le_name_chunk); 6103f1f8012SMatthew Ahrens mdb_printf(" le_name_numints = %u\n", 6113f1f8012SMatthew Ahrens zlc->l_entry.le_name_numints); 6123f1f8012SMatthew Ahrens mdb_printf(" le_value_chunk = %u\n", 6133f1f8012SMatthew Ahrens zlc->l_entry.le_value_chunk); 6143f1f8012SMatthew Ahrens mdb_printf(" le_value_intlen = %u\n", 6153f1f8012SMatthew Ahrens zlc->l_entry.le_value_intlen); 6163f1f8012SMatthew Ahrens mdb_printf(" le_value_numints = %u\n", 6173f1f8012SMatthew Ahrens zlc->l_entry.le_value_numints); 6183f1f8012SMatthew Ahrens mdb_printf(" le_cd = %u\n", 6193f1f8012SMatthew Ahrens zlc->l_entry.le_cd); 6203f1f8012SMatthew Ahrens mdb_printf(" le_hash = %llx\n", 6213f1f8012SMatthew Ahrens zlc->l_entry.le_hash); 6223f1f8012SMatthew Ahrens break; 6233f1f8012SMatthew Ahrens case ZAP_CHUNK_ARRAY: 6243f1f8012SMatthew Ahrens mdb_printf(" %u: array \"%s\"\n", 6253f1f8012SMatthew Ahrens i, zlc->l_array.la_array); 6263f1f8012SMatthew Ahrens if (verbose) { 6273f1f8012SMatthew Ahrens int j; 6283f1f8012SMatthew Ahrens mdb_printf(" "); 6293f1f8012SMatthew Ahrens for (j = 0; j < ZAP_LEAF_ARRAY_BYTES; j++) { 6303f1f8012SMatthew Ahrens mdb_printf("%02x ", 6313f1f8012SMatthew Ahrens zlc->l_array.la_array[j]); 6323f1f8012SMatthew Ahrens } 6333f1f8012SMatthew Ahrens mdb_printf("\n"); 6343f1f8012SMatthew Ahrens } 6353f1f8012SMatthew Ahrens if (zlc->l_array.la_next != CHAIN_END) { 6363f1f8012SMatthew Ahrens mdb_printf(" lf_next = %u\n", 6373f1f8012SMatthew Ahrens zlc->l_array.la_next); 6383f1f8012SMatthew Ahrens } 6393f1f8012SMatthew Ahrens break; 6403f1f8012SMatthew Ahrens default: 6413f1f8012SMatthew Ahrens mdb_printf(" %u: undefined type %u\n", 6423f1f8012SMatthew Ahrens zlc->l_entry.le_type); 6433f1f8012SMatthew Ahrens } 6443f1f8012SMatthew Ahrens } 6453f1f8012SMatthew Ahrens 6463f1f8012SMatthew Ahrens return (DCMD_OK); 6473f1f8012SMatthew Ahrens } 6483f1f8012SMatthew Ahrens 649fa9e4066Sahrens typedef struct dbufs_data { 650fa9e4066Sahrens mdb_ctf_id_t id; 651fa9e4066Sahrens uint64_t objset; 652fa9e4066Sahrens uint64_t object; 653fa9e4066Sahrens uint64_t level; 654fa9e4066Sahrens uint64_t blkid; 655fa9e4066Sahrens char *osname; 656fa9e4066Sahrens } dbufs_data_t; 657fa9e4066Sahrens 658fa9e4066Sahrens #define DBUFS_UNSET (0xbaddcafedeadbeefULL) 659fa9e4066Sahrens 660fa9e4066Sahrens /* ARGSUSED */ 661fa9e4066Sahrens static int 662fa9e4066Sahrens dbufs_cb(uintptr_t addr, const void *unknown, void *arg) 663fa9e4066Sahrens { 664fa9e4066Sahrens dbufs_data_t *data = arg; 665fa9e4066Sahrens uintptr_t objset; 666fa9e4066Sahrens dmu_buf_t db; 667fa9e4066Sahrens uint8_t level; 668fa9e4066Sahrens uint64_t blkid; 669fa9e4066Sahrens char osname[MAXNAMELEN]; 670fa9e4066Sahrens 671fa9e4066Sahrens if (GETMEMBID(addr, &data->id, db_objset, objset) || 672fa9e4066Sahrens GETMEMBID(addr, &data->id, db, db) || 673fa9e4066Sahrens GETMEMBID(addr, &data->id, db_level, level) || 674fa9e4066Sahrens GETMEMBID(addr, &data->id, db_blkid, blkid)) { 675fa9e4066Sahrens return (WALK_ERR); 676fa9e4066Sahrens } 677fa9e4066Sahrens 678fa9e4066Sahrens if ((data->objset == DBUFS_UNSET || data->objset == objset) && 679fa9e4066Sahrens (data->osname == NULL || (objset_name(objset, osname) == 0 && 680ccae0b50Seschrock strcmp(data->osname, osname) == 0)) && 681fa9e4066Sahrens (data->object == DBUFS_UNSET || data->object == db.db_object) && 682fa9e4066Sahrens (data->level == DBUFS_UNSET || data->level == level) && 683fa9e4066Sahrens (data->blkid == DBUFS_UNSET || data->blkid == blkid)) { 684fa9e4066Sahrens mdb_printf("%#lr\n", addr); 685fa9e4066Sahrens } 686fa9e4066Sahrens return (WALK_NEXT); 687fa9e4066Sahrens } 688fa9e4066Sahrens 689fa9e4066Sahrens /* ARGSUSED */ 690fa9e4066Sahrens static int 691fa9e4066Sahrens dbufs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 692fa9e4066Sahrens { 693fa9e4066Sahrens dbufs_data_t data; 694fa9e4066Sahrens char *object = NULL; 695fa9e4066Sahrens char *blkid = NULL; 696fa9e4066Sahrens 697fa9e4066Sahrens data.objset = data.object = data.level = data.blkid = DBUFS_UNSET; 698fa9e4066Sahrens data.osname = NULL; 699fa9e4066Sahrens 700fa9e4066Sahrens if (mdb_getopts(argc, argv, 701fa9e4066Sahrens 'O', MDB_OPT_UINT64, &data.objset, 702fa9e4066Sahrens 'n', MDB_OPT_STR, &data.osname, 703fa9e4066Sahrens 'o', MDB_OPT_STR, &object, 704fa9e4066Sahrens 'l', MDB_OPT_UINT64, &data.level, 705fa9e4066Sahrens 'b', MDB_OPT_STR, &blkid) != argc) { 706fa9e4066Sahrens return (DCMD_USAGE); 707fa9e4066Sahrens } 708fa9e4066Sahrens 709fa9e4066Sahrens if (object) { 710fa9e4066Sahrens if (strcmp(object, "mdn") == 0) { 711fa9e4066Sahrens data.object = DMU_META_DNODE_OBJECT; 712fa9e4066Sahrens } else { 713fa9e4066Sahrens data.object = mdb_strtoull(object); 714fa9e4066Sahrens } 715fa9e4066Sahrens } 716fa9e4066Sahrens 717fa9e4066Sahrens if (blkid) { 718fa9e4066Sahrens if (strcmp(blkid, "bonus") == 0) { 719fa9e4066Sahrens data.blkid = DB_BONUS_BLKID; 720fa9e4066Sahrens } else { 721fa9e4066Sahrens data.blkid = mdb_strtoull(blkid); 722fa9e4066Sahrens } 723fa9e4066Sahrens } 724fa9e4066Sahrens 725fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &data.id) == -1) { 726fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 727fa9e4066Sahrens return (DCMD_ERR); 728fa9e4066Sahrens } 729fa9e4066Sahrens 7305f5f7a6fSahrens if (mdb_walk("dmu_buf_impl_t", dbufs_cb, &data) != 0) { 731fa9e4066Sahrens mdb_warn("can't walk dbufs"); 732fa9e4066Sahrens return (DCMD_ERR); 733fa9e4066Sahrens } 734fa9e4066Sahrens 735fa9e4066Sahrens return (DCMD_OK); 736fa9e4066Sahrens } 737fa9e4066Sahrens 738fa9e4066Sahrens typedef struct abuf_find_data { 739fa9e4066Sahrens dva_t dva; 740fa9e4066Sahrens mdb_ctf_id_t id; 741fa9e4066Sahrens } abuf_find_data_t; 742fa9e4066Sahrens 743fa9e4066Sahrens /* ARGSUSED */ 744fa9e4066Sahrens static int 745fa9e4066Sahrens abuf_find_cb(uintptr_t addr, const void *unknown, void *arg) 746fa9e4066Sahrens { 747fa9e4066Sahrens abuf_find_data_t *data = arg; 748fa9e4066Sahrens dva_t dva; 749fa9e4066Sahrens 750fa9e4066Sahrens if (GETMEMBID(addr, &data->id, b_dva, dva)) { 751fa9e4066Sahrens return (WALK_ERR); 752fa9e4066Sahrens } 753fa9e4066Sahrens 754fa9e4066Sahrens if (dva.dva_word[0] == data->dva.dva_word[0] && 755fa9e4066Sahrens dva.dva_word[1] == data->dva.dva_word[1]) { 756fa9e4066Sahrens mdb_printf("%#lr\n", addr); 757fa9e4066Sahrens } 758fa9e4066Sahrens return (WALK_NEXT); 759fa9e4066Sahrens } 760fa9e4066Sahrens 761fa9e4066Sahrens /* ARGSUSED */ 762fa9e4066Sahrens static int 763fa9e4066Sahrens abuf_find(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 764fa9e4066Sahrens { 765fa9e4066Sahrens abuf_find_data_t data; 766fa9e4066Sahrens GElf_Sym sym; 767fa9e4066Sahrens int i; 768fa9e4066Sahrens const char *syms[] = { 769a2eea2e1Sahrens "ARC_mru", 770a2eea2e1Sahrens "ARC_mru_ghost", 771a2eea2e1Sahrens "ARC_mfu", 772a2eea2e1Sahrens "ARC_mfu_ghost", 773fa9e4066Sahrens }; 774fa9e4066Sahrens 775fa9e4066Sahrens if (argc != 2) 776fa9e4066Sahrens return (DCMD_USAGE); 777fa9e4066Sahrens 778fa9e4066Sahrens for (i = 0; i < 2; i ++) { 779fa9e4066Sahrens switch (argv[i].a_type) { 780fa9e4066Sahrens case MDB_TYPE_STRING: 781fa9e4066Sahrens data.dva.dva_word[i] = mdb_strtoull(argv[i].a_un.a_str); 782fa9e4066Sahrens break; 783fa9e4066Sahrens case MDB_TYPE_IMMEDIATE: 784fa9e4066Sahrens data.dva.dva_word[i] = argv[i].a_un.a_val; 785fa9e4066Sahrens break; 786fa9e4066Sahrens default: 787fa9e4066Sahrens return (DCMD_USAGE); 788fa9e4066Sahrens } 789fa9e4066Sahrens } 790fa9e4066Sahrens 791fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct arc_buf_hdr", &data.id) == -1) { 792fa9e4066Sahrens mdb_warn("couldn't find struct arc_buf_hdr"); 793fa9e4066Sahrens return (DCMD_ERR); 794fa9e4066Sahrens } 795fa9e4066Sahrens 796fa9e4066Sahrens for (i = 0; i < sizeof (syms) / sizeof (syms[0]); i++) { 797fa9e4066Sahrens if (mdb_lookup_by_name(syms[i], &sym)) { 798fa9e4066Sahrens mdb_warn("can't find symbol %s", syms[i]); 799fa9e4066Sahrens return (DCMD_ERR); 800fa9e4066Sahrens } 801fa9e4066Sahrens 802fa9e4066Sahrens if (mdb_pwalk("list", abuf_find_cb, &data, sym.st_value) != 0) { 803fa9e4066Sahrens mdb_warn("can't walk %s", syms[i]); 804fa9e4066Sahrens return (DCMD_ERR); 805fa9e4066Sahrens } 806fa9e4066Sahrens } 807fa9e4066Sahrens 808fa9e4066Sahrens return (DCMD_OK); 809fa9e4066Sahrens } 810fa9e4066Sahrens 81144cb6abcSbmc /*ARGSUSED*/ 81244cb6abcSbmc static int 81344cb6abcSbmc arc_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 81444cb6abcSbmc { 81544cb6abcSbmc kstat_named_t *stats; 81644cb6abcSbmc GElf_Sym sym; 81791ebeef5Sahrens int nstats, i; 81844cb6abcSbmc uint_t opt_a = FALSE; 81991ebeef5Sahrens uint_t opt_b = FALSE; 82091ebeef5Sahrens uint_t shift = 0; 82191ebeef5Sahrens const char *suffix; 82244cb6abcSbmc 82391ebeef5Sahrens static const char *bytestats[] = { 82491ebeef5Sahrens "p", "c", "c_min", "c_max", "size", NULL 82591ebeef5Sahrens }; 82691ebeef5Sahrens 82791ebeef5Sahrens static const char *extras[] = { 82891ebeef5Sahrens "arc_no_grow", "arc_tempreserve", 82991ebeef5Sahrens "arc_meta_used", "arc_meta_limit", "arc_meta_max", 83091ebeef5Sahrens NULL 83144cb6abcSbmc }; 83244cb6abcSbmc 83344cb6abcSbmc if (mdb_lookup_by_name("arc_stats", &sym) == -1) { 83444cb6abcSbmc mdb_warn("failed to find 'arc_stats'"); 83544cb6abcSbmc return (DCMD_ERR); 83644cb6abcSbmc } 83744cb6abcSbmc 83844cb6abcSbmc stats = mdb_zalloc(sym.st_size, UM_SLEEP | UM_GC); 83944cb6abcSbmc 84044cb6abcSbmc if (mdb_vread(stats, sym.st_size, sym.st_value) == -1) { 84144cb6abcSbmc mdb_warn("couldn't read 'arc_stats' at %p", sym.st_value); 84244cb6abcSbmc return (DCMD_ERR); 84344cb6abcSbmc } 84444cb6abcSbmc 84544cb6abcSbmc nstats = sym.st_size / sizeof (kstat_named_t); 84644cb6abcSbmc 84791ebeef5Sahrens /* NB: -a / opt_a are ignored for backwards compatability */ 84891ebeef5Sahrens if (mdb_getopts(argc, argv, 84991ebeef5Sahrens 'a', MDB_OPT_SETBITS, TRUE, &opt_a, 85091ebeef5Sahrens 'b', MDB_OPT_SETBITS, TRUE, &opt_b, 85191ebeef5Sahrens 'k', MDB_OPT_SETBITS, 10, &shift, 85291ebeef5Sahrens 'm', MDB_OPT_SETBITS, 20, &shift, 85391ebeef5Sahrens 'g', MDB_OPT_SETBITS, 30, &shift, 85491ebeef5Sahrens NULL) != argc) 85544cb6abcSbmc return (DCMD_USAGE); 85644cb6abcSbmc 85791ebeef5Sahrens if (!opt_b && !shift) 85891ebeef5Sahrens shift = 20; 85991ebeef5Sahrens 86091ebeef5Sahrens switch (shift) { 86191ebeef5Sahrens case 0: 86291ebeef5Sahrens suffix = "B"; 86391ebeef5Sahrens break; 86491ebeef5Sahrens case 10: 86591ebeef5Sahrens suffix = "KB"; 86691ebeef5Sahrens break; 86791ebeef5Sahrens case 20: 86891ebeef5Sahrens suffix = "MB"; 86991ebeef5Sahrens break; 87091ebeef5Sahrens case 30: 87191ebeef5Sahrens suffix = "GB"; 87291ebeef5Sahrens break; 87391ebeef5Sahrens default: 87491ebeef5Sahrens suffix = "XX"; 87591ebeef5Sahrens } 87691ebeef5Sahrens 87791ebeef5Sahrens for (i = 0; i < nstats; i++) { 87891ebeef5Sahrens int j; 87991ebeef5Sahrens boolean_t bytes = B_FALSE; 88091ebeef5Sahrens 88191ebeef5Sahrens for (j = 0; bytestats[j]; j++) { 88291ebeef5Sahrens if (strcmp(stats[i].name, bytestats[j]) == 0) { 88391ebeef5Sahrens bytes = B_TRUE; 88491ebeef5Sahrens break; 88591ebeef5Sahrens } 88691ebeef5Sahrens } 88744cb6abcSbmc 88891ebeef5Sahrens if (bytes) { 88991ebeef5Sahrens mdb_printf("%-25s = %9llu %s\n", stats[i].name, 89091ebeef5Sahrens stats[i].value.ui64 >> shift, suffix); 89191ebeef5Sahrens } else { 89291ebeef5Sahrens mdb_printf("%-25s = %9llu\n", stats[i].name, 89344cb6abcSbmc stats[i].value.ui64); 89444cb6abcSbmc } 89544cb6abcSbmc } 89644cb6abcSbmc 89791ebeef5Sahrens for (i = 0; extras[i]; i++) { 89891ebeef5Sahrens uint64_t buf; 89944cb6abcSbmc 90091ebeef5Sahrens if (mdb_lookup_by_name(extras[i], &sym) == -1) { 90191ebeef5Sahrens mdb_warn("failed to find '%s'", extras[i]); 90291ebeef5Sahrens return (DCMD_ERR); 90344cb6abcSbmc } 90444cb6abcSbmc 90591ebeef5Sahrens if (sym.st_size != sizeof (uint64_t) && 90691ebeef5Sahrens sym.st_size != sizeof (uint32_t)) { 90791ebeef5Sahrens mdb_warn("expected scalar for variable '%s'\n", 90891ebeef5Sahrens extras[i]); 90991ebeef5Sahrens return (DCMD_ERR); 91044cb6abcSbmc } 91144cb6abcSbmc 91291ebeef5Sahrens if (mdb_vread(&buf, sym.st_size, sym.st_value) == -1) { 91391ebeef5Sahrens mdb_warn("couldn't read '%s'", extras[i]); 91491ebeef5Sahrens return (DCMD_ERR); 91544cb6abcSbmc } 91644cb6abcSbmc 91791ebeef5Sahrens mdb_printf("%-25s = ", extras[i]); 91891ebeef5Sahrens 91991ebeef5Sahrens /* NB: all the 64-bit extras happen to be byte counts */ 92091ebeef5Sahrens if (sym.st_size == sizeof (uint64_t)) 92191ebeef5Sahrens mdb_printf("%9llu %s\n", buf >> shift, suffix); 92244cb6abcSbmc 92391ebeef5Sahrens if (sym.st_size == sizeof (uint32_t)) 92491ebeef5Sahrens mdb_printf("%9d\n", *((uint32_t *)&buf)); 92591ebeef5Sahrens } 92644cb6abcSbmc return (DCMD_OK); 92744cb6abcSbmc } 92844cb6abcSbmc 929fa9e4066Sahrens /* 930fa9e4066Sahrens * ::spa 931fa9e4066Sahrens * 932fa9e4066Sahrens * -c Print configuration information as well 933fa9e4066Sahrens * -v Print vdev state 934fa9e4066Sahrens * -e Print vdev error stats 935fa9e4066Sahrens * 936fa9e4066Sahrens * Print a summarized spa_t. When given no arguments, prints out a table of all 937fa9e4066Sahrens * active pools on the system. 938fa9e4066Sahrens */ 939fa9e4066Sahrens /* ARGSUSED */ 940fa9e4066Sahrens static int 941fa9e4066Sahrens spa_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 942fa9e4066Sahrens { 943fa9e4066Sahrens spa_t spa; 944fa9e4066Sahrens const char *statetab[] = { "ACTIVE", "EXPORTED", "DESTROYED", 945e14bb325SJeff Bonwick "SPARE", "L2CACHE", "UNINIT", "UNAVAIL", "POTENTIAL" }; 946fa9e4066Sahrens const char *state; 947fa9e4066Sahrens int config = FALSE; 948fa9e4066Sahrens int vdevs = FALSE; 949fa9e4066Sahrens int errors = FALSE; 950fa9e4066Sahrens 951fa9e4066Sahrens if (mdb_getopts(argc, argv, 952fa9e4066Sahrens 'c', MDB_OPT_SETBITS, TRUE, &config, 953fa9e4066Sahrens 'v', MDB_OPT_SETBITS, TRUE, &vdevs, 954fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 955fa9e4066Sahrens NULL) != argc) 956fa9e4066Sahrens return (DCMD_USAGE); 957fa9e4066Sahrens 958fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 959fa9e4066Sahrens if (mdb_walk_dcmd("spa", "spa", argc, argv) == -1) { 960fa9e4066Sahrens mdb_warn("can't walk spa"); 961fa9e4066Sahrens return (DCMD_ERR); 962fa9e4066Sahrens } 963fa9e4066Sahrens 964fa9e4066Sahrens return (DCMD_OK); 965fa9e4066Sahrens } 966fa9e4066Sahrens 967fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 968fa9e4066Sahrens mdb_printf("%#lr\n", addr); 969fa9e4066Sahrens return (DCMD_OK); 970fa9e4066Sahrens } 971fa9e4066Sahrens 972fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) 973fa9e4066Sahrens mdb_printf("%<u>%-?s %9s %-*s%</u>\n", "ADDR", "STATE", 974fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 60 : 52, "NAME"); 975fa9e4066Sahrens 976fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 977fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 978fa9e4066Sahrens return (DCMD_ERR); 979fa9e4066Sahrens } 980fa9e4066Sahrens 981fa9e4066Sahrens if (spa.spa_state < 0 || spa.spa_state > POOL_STATE_UNAVAIL) 982ea8dc4b6Seschrock state = "UNKNOWN"; 983fa9e4066Sahrens else 984fa9e4066Sahrens state = statetab[spa.spa_state]; 985fa9e4066Sahrens 986e14bb325SJeff Bonwick mdb_printf("%0?p %9s %s\n", addr, state, spa.spa_name); 987fa9e4066Sahrens 988fa9e4066Sahrens if (config) { 989fa9e4066Sahrens mdb_printf("\n"); 990fa9e4066Sahrens mdb_inc_indent(4); 991fa9e4066Sahrens if (mdb_call_dcmd("spa_config", addr, flags, 0, 992fa9e4066Sahrens NULL) != DCMD_OK) 993fa9e4066Sahrens return (DCMD_ERR); 994fa9e4066Sahrens mdb_dec_indent(4); 995fa9e4066Sahrens } 996fa9e4066Sahrens 997fa9e4066Sahrens if (vdevs || errors) { 998fa9e4066Sahrens mdb_arg_t v; 999fa9e4066Sahrens 1000fa9e4066Sahrens v.a_type = MDB_TYPE_STRING; 1001fa9e4066Sahrens v.a_un.a_str = "-e"; 1002fa9e4066Sahrens 1003fa9e4066Sahrens mdb_printf("\n"); 1004fa9e4066Sahrens mdb_inc_indent(4); 1005fa9e4066Sahrens if (mdb_call_dcmd("spa_vdevs", addr, flags, errors ? 1 : 0, 1006fa9e4066Sahrens &v) != DCMD_OK) 1007fa9e4066Sahrens return (DCMD_ERR); 1008fa9e4066Sahrens mdb_dec_indent(4); 1009fa9e4066Sahrens } 1010fa9e4066Sahrens 1011fa9e4066Sahrens return (DCMD_OK); 1012fa9e4066Sahrens } 1013fa9e4066Sahrens 1014fa9e4066Sahrens /* 1015fa9e4066Sahrens * ::spa_config 1016fa9e4066Sahrens * 1017fa9e4066Sahrens * Given a spa_t, print the configuration information stored in spa_config. 1018fa9e4066Sahrens * Since it's just an nvlist, format it as an indented list of name=value pairs. 1019fa9e4066Sahrens * We simply read the value of spa_config and pass off to ::nvlist. 1020fa9e4066Sahrens */ 1021fa9e4066Sahrens /* ARGSUSED */ 1022fa9e4066Sahrens static int 1023fa9e4066Sahrens spa_print_config(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1024fa9e4066Sahrens { 1025fa9e4066Sahrens spa_t spa; 1026fa9e4066Sahrens 1027fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1028fa9e4066Sahrens return (DCMD_USAGE); 1029fa9e4066Sahrens 1030fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1031fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1032fa9e4066Sahrens return (DCMD_ERR); 1033fa9e4066Sahrens } 1034fa9e4066Sahrens 1035fa9e4066Sahrens if (spa.spa_config == NULL) { 1036fa9e4066Sahrens mdb_printf("(none)\n"); 1037fa9e4066Sahrens return (DCMD_OK); 1038fa9e4066Sahrens } 1039fa9e4066Sahrens 1040fa9e4066Sahrens return (mdb_call_dcmd("nvlist", (uintptr_t)spa.spa_config, flags, 1041fa9e4066Sahrens 0, NULL)); 1042fa9e4066Sahrens } 1043fa9e4066Sahrens 1044fa9e4066Sahrens /* 1045fa9e4066Sahrens * ::vdev 1046fa9e4066Sahrens * 1047fa9e4066Sahrens * Print out a summarized vdev_t, in the following form: 1048fa9e4066Sahrens * 1049fa9e4066Sahrens * ADDR STATE AUX DESC 1050fa9e4066Sahrens * fffffffbcde23df0 HEALTHY - /dev/dsk/c0t0d0 1051fa9e4066Sahrens * 1052fa9e4066Sahrens * If '-r' is specified, recursively visit all children. 1053fa9e4066Sahrens * 1054fa9e4066Sahrens * With '-e', the statistics associated with the vdev are printed as well. 1055fa9e4066Sahrens */ 1056fa9e4066Sahrens static int 1057614409b5Sahrens do_print_vdev(uintptr_t addr, int flags, int depth, int stats, 1058fa9e4066Sahrens int recursive) 1059fa9e4066Sahrens { 1060fa9e4066Sahrens vdev_t vdev; 1061fa9e4066Sahrens char desc[MAXNAMELEN]; 1062fa9e4066Sahrens int c, children; 1063fa9e4066Sahrens uintptr_t *child; 1064fa9e4066Sahrens const char *state, *aux; 1065fa9e4066Sahrens 1066fa9e4066Sahrens if (mdb_vread(&vdev, sizeof (vdev), (uintptr_t)addr) == -1) { 1067fa9e4066Sahrens mdb_warn("failed to read vdev_t at %p\n", (uintptr_t)addr); 1068fa9e4066Sahrens return (DCMD_ERR); 1069fa9e4066Sahrens } 1070fa9e4066Sahrens 1071fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 1072fa9e4066Sahrens mdb_printf("%#lr", addr); 1073fa9e4066Sahrens } else { 1074fa9e4066Sahrens if (vdev.vdev_path != NULL) { 1075fa9e4066Sahrens if (mdb_readstr(desc, sizeof (desc), 1076fa9e4066Sahrens (uintptr_t)vdev.vdev_path) == -1) { 1077fa9e4066Sahrens mdb_warn("failed to read vdev_path at %p\n", 1078fa9e4066Sahrens vdev.vdev_path); 1079fa9e4066Sahrens return (DCMD_ERR); 1080fa9e4066Sahrens } 1081fa9e4066Sahrens } else if (vdev.vdev_ops != NULL) { 1082fa9e4066Sahrens vdev_ops_t ops; 1083fa9e4066Sahrens if (mdb_vread(&ops, sizeof (ops), 1084fa9e4066Sahrens (uintptr_t)vdev.vdev_ops) == -1) { 1085fa9e4066Sahrens mdb_warn("failed to read vdev_ops at %p\n", 1086fa9e4066Sahrens vdev.vdev_ops); 1087fa9e4066Sahrens return (DCMD_ERR); 1088fa9e4066Sahrens } 1089fa9e4066Sahrens (void) strcpy(desc, ops.vdev_op_type); 1090fa9e4066Sahrens } else { 1091fa9e4066Sahrens (void) strcpy(desc, "<unknown>"); 1092fa9e4066Sahrens } 1093fa9e4066Sahrens 1094fa9e4066Sahrens if (depth == 0 && DCMD_HDRSPEC(flags)) 1095fa9e4066Sahrens mdb_printf("%<u>%-?s %-9s %-12s %-*s%</u>\n", 1096fa9e4066Sahrens "ADDR", "STATE", "AUX", 1097fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 43 : 35, 1098fa9e4066Sahrens "DESCRIPTION"); 1099fa9e4066Sahrens 1100fa9e4066Sahrens mdb_printf("%0?p ", addr); 1101fa9e4066Sahrens 1102fa9e4066Sahrens switch (vdev.vdev_state) { 1103fa9e4066Sahrens case VDEV_STATE_CLOSED: 1104ccae0b50Seschrock state = "CLOSED"; 1105ccae0b50Seschrock break; 1106fa9e4066Sahrens case VDEV_STATE_OFFLINE: 1107ccae0b50Seschrock state = "OFFLINE"; 1108ccae0b50Seschrock break; 1109fa9e4066Sahrens case VDEV_STATE_CANT_OPEN: 1110ccae0b50Seschrock state = "CANT_OPEN"; 1111ccae0b50Seschrock break; 1112fa9e4066Sahrens case VDEV_STATE_DEGRADED: 1113ccae0b50Seschrock state = "DEGRADED"; 1114ccae0b50Seschrock break; 1115fa9e4066Sahrens case VDEV_STATE_HEALTHY: 1116ccae0b50Seschrock state = "HEALTHY"; 1117ccae0b50Seschrock break; 11183d7072f8Seschrock case VDEV_STATE_REMOVED: 11193d7072f8Seschrock state = "REMOVED"; 11203d7072f8Seschrock break; 11213d7072f8Seschrock case VDEV_STATE_FAULTED: 11223d7072f8Seschrock state = "FAULTED"; 11233d7072f8Seschrock break; 1124fa9e4066Sahrens default: 1125ccae0b50Seschrock state = "UNKNOWN"; 1126ccae0b50Seschrock break; 1127fa9e4066Sahrens } 1128fa9e4066Sahrens 1129fa9e4066Sahrens switch (vdev.vdev_stat.vs_aux) { 1130fa9e4066Sahrens case VDEV_AUX_NONE: 1131fa9e4066Sahrens aux = "-"; 1132fa9e4066Sahrens break; 1133fa9e4066Sahrens case VDEV_AUX_OPEN_FAILED: 1134fa9e4066Sahrens aux = "OPEN_FAILED"; 1135fa9e4066Sahrens break; 1136fa9e4066Sahrens case VDEV_AUX_CORRUPT_DATA: 1137fa9e4066Sahrens aux = "CORRUPT_DATA"; 1138fa9e4066Sahrens break; 1139fa9e4066Sahrens case VDEV_AUX_NO_REPLICAS: 1140fa9e4066Sahrens aux = "NO_REPLICAS"; 1141fa9e4066Sahrens break; 1142fa9e4066Sahrens case VDEV_AUX_BAD_GUID_SUM: 1143fa9e4066Sahrens aux = "BAD_GUID_SUM"; 1144fa9e4066Sahrens break; 1145fa9e4066Sahrens case VDEV_AUX_TOO_SMALL: 1146fa9e4066Sahrens aux = "TOO_SMALL"; 1147fa9e4066Sahrens break; 1148fa9e4066Sahrens case VDEV_AUX_BAD_LABEL: 1149fa9e4066Sahrens aux = "BAD_LABEL"; 1150fa9e4066Sahrens break; 1151b87f3af3Sperrin case VDEV_AUX_VERSION_NEWER: 1152b87f3af3Sperrin aux = "VERS_NEWER"; 1153b87f3af3Sperrin break; 1154b87f3af3Sperrin case VDEV_AUX_VERSION_OLDER: 1155b87f3af3Sperrin aux = "VERS_OLDER"; 1156b87f3af3Sperrin break; 1157b87f3af3Sperrin case VDEV_AUX_SPARED: 1158b87f3af3Sperrin aux = "SPARED"; 1159b87f3af3Sperrin break; 1160b87f3af3Sperrin case VDEV_AUX_ERR_EXCEEDED: 1161b87f3af3Sperrin aux = "ERR_EXCEEDED"; 1162b87f3af3Sperrin break; 1163b87f3af3Sperrin case VDEV_AUX_IO_FAILURE: 1164b87f3af3Sperrin aux = "IO_FAILURE"; 1165b87f3af3Sperrin break; 1166b87f3af3Sperrin case VDEV_AUX_BAD_LOG: 1167b87f3af3Sperrin aux = "BAD_LOG"; 1168b87f3af3Sperrin break; 11691195e687SMark J Musante case VDEV_AUX_EXTERNAL: 11701195e687SMark J Musante aux = "EXTERNAL"; 11711195e687SMark J Musante break; 11721195e687SMark J Musante case VDEV_AUX_SPLIT_POOL: 11731195e687SMark J Musante aux = "SPLIT_POOL"; 11741195e687SMark J Musante break; 1175fa9e4066Sahrens default: 1176fa9e4066Sahrens aux = "UNKNOWN"; 1177fa9e4066Sahrens break; 1178fa9e4066Sahrens } 1179fa9e4066Sahrens 1180fa9e4066Sahrens mdb_printf("%-9s %-12s %*s%s\n", state, aux, depth, "", desc); 1181fa9e4066Sahrens 1182fa9e4066Sahrens if (stats) { 1183fa9e4066Sahrens vdev_stat_t *vs = &vdev.vdev_stat; 1184fa9e4066Sahrens int i; 1185fa9e4066Sahrens 1186fa9e4066Sahrens mdb_inc_indent(4); 1187fa9e4066Sahrens mdb_printf("\n"); 1188fa9e4066Sahrens mdb_printf("%<u> %12s %12s %12s %12s " 1189fa9e4066Sahrens "%12s%</u>\n", "READ", "WRITE", "FREE", "CLAIM", 1190fa9e4066Sahrens "IOCTL"); 1191fa9e4066Sahrens mdb_printf("OPS "); 1192fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1193fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_ops[i], 1194fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1195fa9e4066Sahrens mdb_printf("\n"); 1196fa9e4066Sahrens mdb_printf("BYTES "); 1197fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1198fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_bytes[i], 1199fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1200fa9e4066Sahrens 1201fa9e4066Sahrens 1202fa9e4066Sahrens mdb_printf("\n"); 1203fa9e4066Sahrens mdb_printf("EREAD %10#llx\n", vs->vs_read_errors); 1204fa9e4066Sahrens mdb_printf("EWRITE %10#llx\n", vs->vs_write_errors); 1205fa9e4066Sahrens mdb_printf("ECKSUM %10#llx\n", 1206fa9e4066Sahrens vs->vs_checksum_errors); 1207fa9e4066Sahrens mdb_dec_indent(4); 1208fa9e4066Sahrens } 1209fa9e4066Sahrens 1210614409b5Sahrens if (stats) 1211fa9e4066Sahrens mdb_printf("\n"); 1212fa9e4066Sahrens } 1213fa9e4066Sahrens 1214fa9e4066Sahrens children = vdev.vdev_children; 1215fa9e4066Sahrens 1216fa9e4066Sahrens if (children == 0 || !recursive) 1217fa9e4066Sahrens return (DCMD_OK); 1218fa9e4066Sahrens 1219fa9e4066Sahrens child = mdb_alloc(children * sizeof (void *), UM_SLEEP | UM_GC); 1220fa9e4066Sahrens if (mdb_vread(child, children * sizeof (void *), 1221fa9e4066Sahrens (uintptr_t)vdev.vdev_child) == -1) { 1222fa9e4066Sahrens mdb_warn("failed to read vdev children at %p", vdev.vdev_child); 1223fa9e4066Sahrens return (DCMD_ERR); 1224fa9e4066Sahrens } 1225fa9e4066Sahrens 1226fa9e4066Sahrens for (c = 0; c < children; c++) { 1227614409b5Sahrens if (do_print_vdev(child[c], flags, depth + 2, stats, 1228fa9e4066Sahrens recursive)) 1229fa9e4066Sahrens return (DCMD_ERR); 1230fa9e4066Sahrens } 1231fa9e4066Sahrens 1232fa9e4066Sahrens return (DCMD_OK); 1233fa9e4066Sahrens } 1234fa9e4066Sahrens 1235fa9e4066Sahrens static int 1236fa9e4066Sahrens vdev_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1237fa9e4066Sahrens { 1238fa9e4066Sahrens int recursive = FALSE; 1239fa9e4066Sahrens int stats = FALSE; 1240c5904d13Seschrock uint64_t depth = 0; 1241fa9e4066Sahrens 1242fa9e4066Sahrens if (mdb_getopts(argc, argv, 1243fa9e4066Sahrens 'r', MDB_OPT_SETBITS, TRUE, &recursive, 1244fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &stats, 1245c5904d13Seschrock 'd', MDB_OPT_UINT64, &depth, 1246fa9e4066Sahrens NULL) != argc) 1247fa9e4066Sahrens return (DCMD_USAGE); 1248fa9e4066Sahrens 1249fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 1250fa9e4066Sahrens mdb_warn("no vdev_t address given\n"); 1251fa9e4066Sahrens return (DCMD_ERR); 1252fa9e4066Sahrens } 1253fa9e4066Sahrens 1254c5904d13Seschrock return (do_print_vdev(addr, flags, (int)depth, stats, recursive)); 1255fa9e4066Sahrens } 1256fa9e4066Sahrens 12575f5f7a6fSahrens typedef struct metaslab_walk_data { 12585f5f7a6fSahrens uint64_t mw_numvdevs; 12595f5f7a6fSahrens uintptr_t *mw_vdevs; 12605f5f7a6fSahrens int mw_curvdev; 12615f5f7a6fSahrens uint64_t mw_nummss; 12625f5f7a6fSahrens uintptr_t *mw_mss; 12635f5f7a6fSahrens int mw_curms; 12645f5f7a6fSahrens } metaslab_walk_data_t; 12655f5f7a6fSahrens 12665f5f7a6fSahrens static int 12675f5f7a6fSahrens metaslab_walk_step(mdb_walk_state_t *wsp) 12685f5f7a6fSahrens { 12695f5f7a6fSahrens metaslab_walk_data_t *mw = wsp->walk_data; 12705f5f7a6fSahrens metaslab_t ms; 12715f5f7a6fSahrens uintptr_t msp; 12725f5f7a6fSahrens 12735f5f7a6fSahrens if (mw->mw_curvdev >= mw->mw_numvdevs) 12745f5f7a6fSahrens return (WALK_DONE); 12755f5f7a6fSahrens 12765f5f7a6fSahrens if (mw->mw_mss == NULL) { 12775f5f7a6fSahrens uintptr_t mssp; 12785f5f7a6fSahrens uintptr_t vdevp; 12795f5f7a6fSahrens 12805f5f7a6fSahrens ASSERT(mw->mw_curms == 0); 12815f5f7a6fSahrens ASSERT(mw->mw_nummss == 0); 12825f5f7a6fSahrens 12835f5f7a6fSahrens vdevp = mw->mw_vdevs[mw->mw_curvdev]; 12845f5f7a6fSahrens if (GETMEMB(vdevp, struct vdev, vdev_ms, mssp) || 12855f5f7a6fSahrens GETMEMB(vdevp, struct vdev, vdev_ms_count, mw->mw_nummss)) { 12865f5f7a6fSahrens return (WALK_ERR); 12875f5f7a6fSahrens } 12885f5f7a6fSahrens 12895f5f7a6fSahrens mw->mw_mss = mdb_alloc(mw->mw_nummss * sizeof (void*), 12905f5f7a6fSahrens UM_SLEEP | UM_GC); 12915f5f7a6fSahrens if (mdb_vread(mw->mw_mss, mw->mw_nummss * sizeof (void*), 12925f5f7a6fSahrens mssp) == -1) { 12935f5f7a6fSahrens mdb_warn("failed to read vdev_ms at %p", mssp); 12945f5f7a6fSahrens return (WALK_ERR); 12955f5f7a6fSahrens } 12965f5f7a6fSahrens } 12975f5f7a6fSahrens 12985f5f7a6fSahrens if (mw->mw_curms >= mw->mw_nummss) { 12995f5f7a6fSahrens mw->mw_mss = NULL; 13005f5f7a6fSahrens mw->mw_curms = 0; 13015f5f7a6fSahrens mw->mw_nummss = 0; 13025f5f7a6fSahrens mw->mw_curvdev++; 13035f5f7a6fSahrens return (WALK_NEXT); 13045f5f7a6fSahrens } 13055f5f7a6fSahrens 13065f5f7a6fSahrens msp = mw->mw_mss[mw->mw_curms]; 13075f5f7a6fSahrens if (mdb_vread(&ms, sizeof (metaslab_t), msp) == -1) { 13085f5f7a6fSahrens mdb_warn("failed to read metaslab_t at %p", msp); 13095f5f7a6fSahrens return (WALK_ERR); 13105f5f7a6fSahrens } 13115f5f7a6fSahrens 13125f5f7a6fSahrens mw->mw_curms++; 13135f5f7a6fSahrens 13145f5f7a6fSahrens return (wsp->walk_callback(msp, &ms, wsp->walk_cbdata)); 13155f5f7a6fSahrens } 13165f5f7a6fSahrens 13175f5f7a6fSahrens /* ARGSUSED */ 13185f5f7a6fSahrens static int 13195f5f7a6fSahrens metaslab_walk_init(mdb_walk_state_t *wsp) 13205f5f7a6fSahrens { 13215f5f7a6fSahrens metaslab_walk_data_t *mw; 13225f5f7a6fSahrens uintptr_t root_vdevp; 13235f5f7a6fSahrens uintptr_t childp; 13245f5f7a6fSahrens 13255f5f7a6fSahrens if (wsp->walk_addr == NULL) { 13265f5f7a6fSahrens mdb_warn("must supply address of spa_t\n"); 13275f5f7a6fSahrens return (WALK_ERR); 13285f5f7a6fSahrens } 13295f5f7a6fSahrens 13305f5f7a6fSahrens mw = mdb_zalloc(sizeof (metaslab_walk_data_t), UM_SLEEP | UM_GC); 13315f5f7a6fSahrens 13325f5f7a6fSahrens if (GETMEMB(wsp->walk_addr, struct spa, spa_root_vdev, root_vdevp) || 13335f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_children, mw->mw_numvdevs) || 13345f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_child, childp)) { 13355f5f7a6fSahrens return (DCMD_ERR); 13365f5f7a6fSahrens } 13375f5f7a6fSahrens 13385f5f7a6fSahrens mw->mw_vdevs = mdb_alloc(mw->mw_numvdevs * sizeof (void *), 13395f5f7a6fSahrens UM_SLEEP | UM_GC); 13405f5f7a6fSahrens if (mdb_vread(mw->mw_vdevs, mw->mw_numvdevs * sizeof (void *), 13415f5f7a6fSahrens childp) == -1) { 13425f5f7a6fSahrens mdb_warn("failed to read root vdev children at %p", childp); 13435f5f7a6fSahrens return (DCMD_ERR); 13445f5f7a6fSahrens } 13455f5f7a6fSahrens 13465f5f7a6fSahrens wsp->walk_data = mw; 13475f5f7a6fSahrens 13485f5f7a6fSahrens return (WALK_NEXT); 13495f5f7a6fSahrens } 13505f5f7a6fSahrens 1351fa9e4066Sahrens typedef struct mdb_spa { 1352fa9e4066Sahrens uintptr_t spa_dsl_pool; 1353fa9e4066Sahrens uintptr_t spa_root_vdev; 1354fa9e4066Sahrens } mdb_spa_t; 1355fa9e4066Sahrens 1356fa9e4066Sahrens typedef struct mdb_dsl_dir { 1357fa9e4066Sahrens uintptr_t dd_phys; 1358fa9e4066Sahrens int64_t dd_space_towrite[TXG_SIZE]; 1359fa9e4066Sahrens } mdb_dsl_dir_t; 1360fa9e4066Sahrens 1361fa9e4066Sahrens typedef struct mdb_dsl_dir_phys { 1362fa9e4066Sahrens uint64_t dd_used_bytes; 1363fa9e4066Sahrens uint64_t dd_compressed_bytes; 1364fa9e4066Sahrens uint64_t dd_uncompressed_bytes; 1365fa9e4066Sahrens } mdb_dsl_dir_phys_t; 1366fa9e4066Sahrens 1367fa9e4066Sahrens typedef struct mdb_vdev { 1368fa9e4066Sahrens uintptr_t vdev_parent; 1369fa9e4066Sahrens uintptr_t vdev_ms; 1370fa9e4066Sahrens uint64_t vdev_ms_count; 1371fa9e4066Sahrens vdev_stat_t vdev_stat; 1372fa9e4066Sahrens } mdb_vdev_t; 1373fa9e4066Sahrens 1374fa9e4066Sahrens typedef struct mdb_metaslab { 1375fa9e4066Sahrens space_map_t ms_allocmap[TXG_SIZE]; 1376fa9e4066Sahrens space_map_t ms_freemap[TXG_SIZE]; 1377fa9e4066Sahrens space_map_t ms_map; 1378ecc2d604Sbonwick space_map_obj_t ms_smo; 13795f5f7a6fSahrens space_map_obj_t ms_smo_syncing; 1380fa9e4066Sahrens } mdb_metaslab_t; 1381fa9e4066Sahrens 13825f5f7a6fSahrens typedef struct space_data { 13835f5f7a6fSahrens uint64_t ms_allocmap[TXG_SIZE]; 13845f5f7a6fSahrens uint64_t ms_freemap[TXG_SIZE]; 13855f5f7a6fSahrens uint64_t ms_map; 13865f5f7a6fSahrens uint64_t avail; 13875f5f7a6fSahrens uint64_t nowavail; 13885f5f7a6fSahrens } space_data_t; 13895f5f7a6fSahrens 13905f5f7a6fSahrens /* ARGSUSED */ 13915f5f7a6fSahrens static int 13925f5f7a6fSahrens space_cb(uintptr_t addr, const void *unknown, void *arg) 13935f5f7a6fSahrens { 13945f5f7a6fSahrens space_data_t *sd = arg; 13955f5f7a6fSahrens mdb_metaslab_t ms; 13965f5f7a6fSahrens 13975f5f7a6fSahrens if (GETMEMB(addr, struct metaslab, ms_allocmap, ms.ms_allocmap) || 13985f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_freemap, ms.ms_freemap) || 13995f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_map, ms.ms_map) || 14005f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo, ms.ms_smo) || 14015f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo_syncing, ms.ms_smo_syncing)) { 14025f5f7a6fSahrens return (WALK_ERR); 14035f5f7a6fSahrens } 14045f5f7a6fSahrens 14055f5f7a6fSahrens sd->ms_allocmap[0] += ms.ms_allocmap[0].sm_space; 14065f5f7a6fSahrens sd->ms_allocmap[1] += ms.ms_allocmap[1].sm_space; 14075f5f7a6fSahrens sd->ms_allocmap[2] += ms.ms_allocmap[2].sm_space; 14085f5f7a6fSahrens sd->ms_allocmap[3] += ms.ms_allocmap[3].sm_space; 14095f5f7a6fSahrens sd->ms_freemap[0] += ms.ms_freemap[0].sm_space; 14105f5f7a6fSahrens sd->ms_freemap[1] += ms.ms_freemap[1].sm_space; 14115f5f7a6fSahrens sd->ms_freemap[2] += ms.ms_freemap[2].sm_space; 14125f5f7a6fSahrens sd->ms_freemap[3] += ms.ms_freemap[3].sm_space; 14135f5f7a6fSahrens sd->ms_map += ms.ms_map.sm_space; 14145f5f7a6fSahrens sd->avail += ms.ms_map.sm_size - ms.ms_smo.smo_alloc; 14155f5f7a6fSahrens sd->nowavail += ms.ms_map.sm_size - ms.ms_smo_syncing.smo_alloc; 14165f5f7a6fSahrens 14175f5f7a6fSahrens return (WALK_NEXT); 14185f5f7a6fSahrens } 14195f5f7a6fSahrens 1420fa9e4066Sahrens /* 1421fa9e4066Sahrens * ::spa_space [-b] 1422fa9e4066Sahrens * 1423fa9e4066Sahrens * Given a spa_t, print out it's on-disk space usage and in-core 1424fa9e4066Sahrens * estimates of future usage. If -b is given, print space in bytes. 1425fa9e4066Sahrens * Otherwise print in megabytes. 1426fa9e4066Sahrens */ 1427fa9e4066Sahrens /* ARGSUSED */ 1428fa9e4066Sahrens static int 1429fa9e4066Sahrens spa_space(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1430fa9e4066Sahrens { 1431fa9e4066Sahrens mdb_spa_t spa; 1432fa9e4066Sahrens uintptr_t dp_root_dir; 1433fa9e4066Sahrens mdb_dsl_dir_t dd; 1434fa9e4066Sahrens mdb_dsl_dir_phys_t dsp; 1435fa9e4066Sahrens uint64_t children; 1436fa9e4066Sahrens uintptr_t childaddr; 14375f5f7a6fSahrens space_data_t sd; 1438fa9e4066Sahrens int shift = 20; 1439fa9e4066Sahrens char *suffix = "M"; 1440fa9e4066Sahrens int bits = FALSE; 1441fa9e4066Sahrens 1442fa9e4066Sahrens if (mdb_getopts(argc, argv, 'b', MDB_OPT_SETBITS, TRUE, &bits, NULL) != 1443fa9e4066Sahrens argc) 1444fa9e4066Sahrens return (DCMD_USAGE); 1445fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1446fa9e4066Sahrens return (DCMD_USAGE); 1447fa9e4066Sahrens 1448fa9e4066Sahrens if (bits) { 1449fa9e4066Sahrens shift = 0; 1450fa9e4066Sahrens suffix = ""; 1451fa9e4066Sahrens } 1452fa9e4066Sahrens 1453fa9e4066Sahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, spa.spa_dsl_pool) || 1454fa9e4066Sahrens GETMEMB(addr, struct spa, spa_root_vdev, spa.spa_root_vdev) || 1455fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_children, children) || 1456fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_child, childaddr) || 1457fa9e4066Sahrens GETMEMB(spa.spa_dsl_pool, struct dsl_pool, 1458fa9e4066Sahrens dp_root_dir, dp_root_dir) || 1459fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, dd_phys, dd.dd_phys) || 1460fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, 1461fa9e4066Sahrens dd_space_towrite, dd.dd_space_towrite) || 1462fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 14635f5f7a6fSahrens dd_used_bytes, dsp.dd_used_bytes) || 14645f5f7a6fSahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1465fa9e4066Sahrens dd_compressed_bytes, dsp.dd_compressed_bytes) || 1466fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1467fa9e4066Sahrens dd_uncompressed_bytes, dsp.dd_uncompressed_bytes)) { 1468fa9e4066Sahrens return (DCMD_ERR); 1469fa9e4066Sahrens } 1470fa9e4066Sahrens 1471fa9e4066Sahrens mdb_printf("dd_space_towrite = %llu%s %llu%s %llu%s %llu%s\n", 1472fa9e4066Sahrens dd.dd_space_towrite[0] >> shift, suffix, 1473fa9e4066Sahrens dd.dd_space_towrite[1] >> shift, suffix, 1474fa9e4066Sahrens dd.dd_space_towrite[2] >> shift, suffix, 1475fa9e4066Sahrens dd.dd_space_towrite[3] >> shift, suffix); 1476fa9e4066Sahrens 1477fa9e4066Sahrens mdb_printf("dd_phys.dd_used_bytes = %llu%s\n", 1478fa9e4066Sahrens dsp.dd_used_bytes >> shift, suffix); 14795f5f7a6fSahrens mdb_printf("dd_phys.dd_compressed_bytes = %llu%s\n", 14805f5f7a6fSahrens dsp.dd_compressed_bytes >> shift, suffix); 14815f5f7a6fSahrens mdb_printf("dd_phys.dd_uncompressed_bytes = %llu%s\n", 14825f5f7a6fSahrens dsp.dd_uncompressed_bytes >> shift, suffix); 14835f5f7a6fSahrens 14845f5f7a6fSahrens bzero(&sd, sizeof (sd)); 14855f5f7a6fSahrens if (mdb_pwalk("metaslab", space_cb, &sd, addr) != 0) { 14865f5f7a6fSahrens mdb_warn("can't walk metaslabs"); 14875f5f7a6fSahrens return (DCMD_ERR); 1488fa9e4066Sahrens } 1489fa9e4066Sahrens 1490fa9e4066Sahrens mdb_printf("ms_allocmap = %llu%s %llu%s %llu%s %llu%s\n", 14915f5f7a6fSahrens sd.ms_allocmap[0] >> shift, suffix, 14925f5f7a6fSahrens sd.ms_allocmap[1] >> shift, suffix, 14935f5f7a6fSahrens sd.ms_allocmap[2] >> shift, suffix, 14945f5f7a6fSahrens sd.ms_allocmap[3] >> shift, suffix); 1495fa9e4066Sahrens mdb_printf("ms_freemap = %llu%s %llu%s %llu%s %llu%s\n", 14965f5f7a6fSahrens sd.ms_freemap[0] >> shift, suffix, 14975f5f7a6fSahrens sd.ms_freemap[1] >> shift, suffix, 14985f5f7a6fSahrens sd.ms_freemap[2] >> shift, suffix, 14995f5f7a6fSahrens sd.ms_freemap[3] >> shift, suffix); 15005f5f7a6fSahrens mdb_printf("ms_map = %llu%s\n", sd.ms_map >> shift, suffix); 15015f5f7a6fSahrens mdb_printf("last synced avail = %llu%s\n", sd.avail >> shift, suffix); 15025f5f7a6fSahrens mdb_printf("current syncing avail = %llu%s\n", 15035f5f7a6fSahrens sd.nowavail >> shift, suffix); 1504fa9e4066Sahrens 1505fa9e4066Sahrens return (DCMD_OK); 1506fa9e4066Sahrens } 1507fa9e4066Sahrens 1508fa9e4066Sahrens /* 1509fa9e4066Sahrens * ::spa_verify 1510fa9e4066Sahrens * 1511fa9e4066Sahrens * Given a spa_t, verify that that the pool is self-consistent. 1512fa9e4066Sahrens * Currently, it only checks to make sure that the vdev tree exists. 1513fa9e4066Sahrens */ 1514fa9e4066Sahrens /* ARGSUSED */ 1515fa9e4066Sahrens static int 1516fa9e4066Sahrens spa_verify(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1517fa9e4066Sahrens { 1518fa9e4066Sahrens spa_t spa; 1519fa9e4066Sahrens 1520fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1521fa9e4066Sahrens return (DCMD_USAGE); 1522fa9e4066Sahrens 1523fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1524fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1525fa9e4066Sahrens return (DCMD_ERR); 1526fa9e4066Sahrens } 1527fa9e4066Sahrens 1528fa9e4066Sahrens if (spa.spa_root_vdev == NULL) { 1529fa9e4066Sahrens mdb_printf("no vdev tree present\n"); 1530fa9e4066Sahrens return (DCMD_OK); 1531fa9e4066Sahrens } 1532fa9e4066Sahrens 1533fa9e4066Sahrens return (DCMD_OK); 1534fa9e4066Sahrens } 1535fa9e4066Sahrens 1536ec9f632eSEric Schrock static int 1537ec9f632eSEric Schrock spa_print_aux(spa_aux_vdev_t *sav, uint_t flags, mdb_arg_t *v, 1538ec9f632eSEric Schrock const char *name) 1539ec9f632eSEric Schrock { 1540ec9f632eSEric Schrock uintptr_t *aux; 1541ec9f632eSEric Schrock size_t len; 1542ec9f632eSEric Schrock int ret, i; 1543ec9f632eSEric Schrock 1544ec9f632eSEric Schrock /* 1545ec9f632eSEric Schrock * Iterate over aux vdevs and print those out as well. This is a 1546ec9f632eSEric Schrock * little annoying because we don't have a root vdev to pass to ::vdev. 1547ec9f632eSEric Schrock * Instead, we print a single line and then call it for each child 1548ec9f632eSEric Schrock * vdev. 1549ec9f632eSEric Schrock */ 1550ec9f632eSEric Schrock if (sav->sav_count != 0) { 1551ec9f632eSEric Schrock v[1].a_type = MDB_TYPE_STRING; 1552ec9f632eSEric Schrock v[1].a_un.a_str = "-d"; 1553ec9f632eSEric Schrock v[2].a_type = MDB_TYPE_IMMEDIATE; 1554ec9f632eSEric Schrock v[2].a_un.a_val = 2; 1555ec9f632eSEric Schrock 1556ec9f632eSEric Schrock len = sav->sav_count * sizeof (uintptr_t); 1557ec9f632eSEric Schrock aux = mdb_alloc(len, UM_SLEEP); 1558ec9f632eSEric Schrock if (mdb_vread(aux, len, 1559ec9f632eSEric Schrock (uintptr_t)sav->sav_vdevs) == -1) { 1560ec9f632eSEric Schrock mdb_free(aux, len); 1561ec9f632eSEric Schrock mdb_warn("failed to read l2cache vdevs at %p", 1562ec9f632eSEric Schrock sav->sav_vdevs); 1563ec9f632eSEric Schrock return (DCMD_ERR); 1564ec9f632eSEric Schrock } 1565ec9f632eSEric Schrock 1566ec9f632eSEric Schrock mdb_printf("%-?s %-9s %-12s %s\n", "-", "-", "-", name); 1567ec9f632eSEric Schrock 1568ec9f632eSEric Schrock for (i = 0; i < sav->sav_count; i++) { 1569ec9f632eSEric Schrock ret = mdb_call_dcmd("vdev", aux[i], flags, 3, v); 1570ec9f632eSEric Schrock if (ret != DCMD_OK) { 1571ec9f632eSEric Schrock mdb_free(aux, len); 1572ec9f632eSEric Schrock return (ret); 1573ec9f632eSEric Schrock } 1574ec9f632eSEric Schrock } 1575ec9f632eSEric Schrock 1576ec9f632eSEric Schrock mdb_free(aux, len); 1577ec9f632eSEric Schrock } 1578ec9f632eSEric Schrock 1579ec9f632eSEric Schrock return (0); 1580ec9f632eSEric Schrock } 1581ec9f632eSEric Schrock 1582fa9e4066Sahrens /* 1583fa9e4066Sahrens * ::spa_vdevs 1584fa9e4066Sahrens * 1585fa9e4066Sahrens * -e Include error stats 1586fa9e4066Sahrens * 1587fa9e4066Sahrens * Print out a summarized list of vdevs for the given spa_t. 1588c5904d13Seschrock * This is accomplished by invoking "::vdev -re" on the root vdev, as well as 1589c5904d13Seschrock * iterating over the cache devices. 1590fa9e4066Sahrens */ 1591fa9e4066Sahrens /* ARGSUSED */ 1592fa9e4066Sahrens static int 1593fa9e4066Sahrens spa_vdevs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1594fa9e4066Sahrens { 1595fa9e4066Sahrens spa_t spa; 1596c5904d13Seschrock mdb_arg_t v[3]; 1597fa9e4066Sahrens int errors = FALSE; 1598ec9f632eSEric Schrock int ret; 1599fa9e4066Sahrens 1600fa9e4066Sahrens if (mdb_getopts(argc, argv, 1601fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 1602fa9e4066Sahrens NULL) != argc) 1603fa9e4066Sahrens return (DCMD_USAGE); 1604fa9e4066Sahrens 1605fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1606fa9e4066Sahrens return (DCMD_USAGE); 1607fa9e4066Sahrens 1608fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1609fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1610fa9e4066Sahrens return (DCMD_ERR); 1611fa9e4066Sahrens } 1612fa9e4066Sahrens 1613088e9d47Seschrock /* 1614088e9d47Seschrock * Unitialized spa_t structures can have a NULL root vdev. 1615088e9d47Seschrock */ 1616088e9d47Seschrock if (spa.spa_root_vdev == NULL) { 1617088e9d47Seschrock mdb_printf("no associated vdevs\n"); 1618088e9d47Seschrock return (DCMD_OK); 1619088e9d47Seschrock } 1620088e9d47Seschrock 1621c5904d13Seschrock v[0].a_type = MDB_TYPE_STRING; 1622c5904d13Seschrock v[0].a_un.a_str = errors ? "-re" : "-r"; 1623fa9e4066Sahrens 1624c5904d13Seschrock ret = mdb_call_dcmd("vdev", (uintptr_t)spa.spa_root_vdev, 1625c5904d13Seschrock flags, 1, v); 1626c5904d13Seschrock if (ret != DCMD_OK) 1627c5904d13Seschrock return (ret); 1628c5904d13Seschrock 1629ec9f632eSEric Schrock if (spa_print_aux(&spa.spa_l2cache, flags, v, "cache") != 0 || 1630ec9f632eSEric Schrock spa_print_aux(&spa.spa_spares, flags, v, "spares") != 0) 1631ec9f632eSEric Schrock return (DCMD_ERR); 1632c5904d13Seschrock 1633c5904d13Seschrock return (DCMD_OK); 1634fa9e4066Sahrens } 1635fa9e4066Sahrens 1636ccae0b50Seschrock /* 1637ccae0b50Seschrock * ::zio 1638ccae0b50Seschrock * 1639ccae0b50Seschrock * Print a summary of zio_t and all its children. This is intended to display a 1640ccae0b50Seschrock * zio tree, and hence we only pick the most important pieces of information for 1641ccae0b50Seschrock * the main summary. More detailed information can always be found by doing a 1642ccae0b50Seschrock * '::print zio' on the underlying zio_t. The columns we display are: 1643ccae0b50Seschrock * 1644ccae0b50Seschrock * ADDRESS TYPE STAGE WAITER 1645ccae0b50Seschrock * 1646ccae0b50Seschrock * The 'address' column is indented by one space for each depth level as we 1647ccae0b50Seschrock * descend down the tree. 1648ccae0b50Seschrock */ 1649fac3008cSeschrock 1650a3f829aeSBill Moore #define ZIO_MAXINDENT 24 1651a3f829aeSBill Moore #define ZIO_MAXWIDTH (sizeof (uintptr_t) * 2 + ZIO_MAXINDENT) 1652a3f829aeSBill Moore #define ZIO_WALK_SELF 0 1653a3f829aeSBill Moore #define ZIO_WALK_CHILD 1 1654a3f829aeSBill Moore #define ZIO_WALK_PARENT 2 1655a3f829aeSBill Moore 1656a3f829aeSBill Moore typedef struct zio_print_args { 1657a3f829aeSBill Moore int zpa_current_depth; 1658a3f829aeSBill Moore int zpa_min_depth; 1659a3f829aeSBill Moore int zpa_max_depth; 1660a3f829aeSBill Moore int zpa_type; 1661a3f829aeSBill Moore uint_t zpa_flags; 1662a3f829aeSBill Moore } zio_print_args_t; 1663a3f829aeSBill Moore 1664a3f829aeSBill Moore static int zio_child_cb(uintptr_t addr, const void *unknown, void *arg); 1665fac3008cSeschrock 1666ccae0b50Seschrock static int 1667ccae0b50Seschrock zio_print_cb(uintptr_t addr, const void *data, void *priv) 1668ccae0b50Seschrock { 1669ccae0b50Seschrock const zio_t *zio = data; 1670a3f829aeSBill Moore zio_print_args_t *zpa = priv; 1671ccae0b50Seschrock mdb_ctf_id_t type_enum, stage_enum; 1672a3f829aeSBill Moore int indent = zpa->zpa_current_depth; 1673ccae0b50Seschrock const char *type, *stage; 1674a3f829aeSBill Moore uintptr_t laddr; 1675ccae0b50Seschrock 1676a3f829aeSBill Moore if (indent > ZIO_MAXINDENT) 1677a3f829aeSBill Moore indent = ZIO_MAXINDENT; 1678ccae0b50Seschrock 1679ccae0b50Seschrock if (mdb_ctf_lookup_by_name("enum zio_type", &type_enum) == -1 || 1680ccae0b50Seschrock mdb_ctf_lookup_by_name("enum zio_stage", &stage_enum) == -1) { 1681ccae0b50Seschrock mdb_warn("failed to lookup zio enums"); 1682ccae0b50Seschrock return (WALK_ERR); 1683ccae0b50Seschrock } 1684ccae0b50Seschrock 1685ccae0b50Seschrock if ((type = mdb_ctf_enum_name(type_enum, zio->io_type)) != NULL) 1686ccae0b50Seschrock type += sizeof ("ZIO_TYPE_") - 1; 1687ccae0b50Seschrock else 1688ccae0b50Seschrock type = "?"; 1689ccae0b50Seschrock 1690ccae0b50Seschrock if ((stage = mdb_ctf_enum_name(stage_enum, zio->io_stage)) != NULL) 1691ccae0b50Seschrock stage += sizeof ("ZIO_STAGE_") - 1; 1692ccae0b50Seschrock else 1693ccae0b50Seschrock stage = "?"; 1694ccae0b50Seschrock 1695a3f829aeSBill Moore if (zpa->zpa_current_depth >= zpa->zpa_min_depth) { 1696a3f829aeSBill Moore if (zpa->zpa_flags & DCMD_PIPE_OUT) { 1697a3f829aeSBill Moore mdb_printf("%?p\n", addr); 1698a3f829aeSBill Moore } else { 1699a3f829aeSBill Moore mdb_printf("%*s%-*p %-5s %-16s ", indent, "", 1700a3f829aeSBill Moore ZIO_MAXWIDTH - indent, addr, type, stage); 1701a3f829aeSBill Moore if (zio->io_waiter) 1702a3f829aeSBill Moore mdb_printf("%?p\n", zio->io_waiter); 1703a3f829aeSBill Moore else 1704a3f829aeSBill Moore mdb_printf("-\n"); 1705a3f829aeSBill Moore } 1706a3f829aeSBill Moore } 1707a3f829aeSBill Moore 1708a3f829aeSBill Moore if (zpa->zpa_current_depth >= zpa->zpa_max_depth) 1709a3f829aeSBill Moore return (WALK_NEXT); 1710ccae0b50Seschrock 1711a3f829aeSBill Moore if (zpa->zpa_type == ZIO_WALK_PARENT) 1712a3f829aeSBill Moore laddr = addr + OFFSETOF(zio_t, io_parent_list); 1713ccae0b50Seschrock else 1714a3f829aeSBill Moore laddr = addr + OFFSETOF(zio_t, io_child_list); 1715ccae0b50Seschrock 1716a3f829aeSBill Moore zpa->zpa_current_depth++; 1717a3f829aeSBill Moore if (mdb_pwalk("list", zio_child_cb, zpa, laddr) != 0) { 1718a3f829aeSBill Moore mdb_warn("failed to walk zio_t children at %p\n", laddr); 1719ccae0b50Seschrock return (WALK_ERR); 1720ccae0b50Seschrock } 1721a3f829aeSBill Moore zpa->zpa_current_depth--; 1722ccae0b50Seschrock 1723ccae0b50Seschrock return (WALK_NEXT); 1724ccae0b50Seschrock } 1725ccae0b50Seschrock 1726a3f829aeSBill Moore /* ARGSUSED */ 1727ccae0b50Seschrock static int 1728a3f829aeSBill Moore zio_child_cb(uintptr_t addr, const void *unknown, void *arg) 1729ccae0b50Seschrock { 1730a3f829aeSBill Moore zio_link_t zl; 1731ccae0b50Seschrock zio_t zio; 1732a3f829aeSBill Moore uintptr_t ziop; 1733a3f829aeSBill Moore zio_print_args_t *zpa = arg; 1734a3f829aeSBill Moore 1735a3f829aeSBill Moore if (mdb_vread(&zl, sizeof (zl), addr) == -1) { 1736a3f829aeSBill Moore mdb_warn("failed to read zio_link_t at %p", addr); 1737a3f829aeSBill Moore return (WALK_ERR); 1738a3f829aeSBill Moore } 1739a3f829aeSBill Moore 1740a3f829aeSBill Moore if (zpa->zpa_type == ZIO_WALK_PARENT) 1741a3f829aeSBill Moore ziop = (uintptr_t)zl.zl_parent; 1742a3f829aeSBill Moore else 1743a3f829aeSBill Moore ziop = (uintptr_t)zl.zl_child; 1744a3f829aeSBill Moore 1745a3f829aeSBill Moore if (mdb_vread(&zio, sizeof (zio_t), ziop) == -1) { 1746a3f829aeSBill Moore mdb_warn("failed to read zio_t at %p", ziop); 1747a3f829aeSBill Moore return (WALK_ERR); 1748a3f829aeSBill Moore } 1749fac3008cSeschrock 1750a3f829aeSBill Moore return (zio_print_cb(ziop, &zio, arg)); 1751a3f829aeSBill Moore } 1752a3f829aeSBill Moore 1753a3f829aeSBill Moore /* ARGSUSED */ 1754a3f829aeSBill Moore static int 1755a3f829aeSBill Moore zio_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1756a3f829aeSBill Moore { 1757a3f829aeSBill Moore zio_t zio; 1758a3f829aeSBill Moore zio_print_args_t zpa = { 0 }; 1759ccae0b50Seschrock 1760ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1761ccae0b50Seschrock return (DCMD_USAGE); 1762ccae0b50Seschrock 1763a3f829aeSBill Moore if (mdb_getopts(argc, argv, 1764a3f829aeSBill Moore 'r', MDB_OPT_SETBITS, INT_MAX, &zpa.zpa_max_depth, 1765a3f829aeSBill Moore 'c', MDB_OPT_SETBITS, ZIO_WALK_CHILD, &zpa.zpa_type, 1766a3f829aeSBill Moore 'p', MDB_OPT_SETBITS, ZIO_WALK_PARENT, &zpa.zpa_type, 1767a3f829aeSBill Moore NULL) != argc) 1768a3f829aeSBill Moore return (DCMD_USAGE); 1769a3f829aeSBill Moore 1770a3f829aeSBill Moore zpa.zpa_flags = flags; 1771a3f829aeSBill Moore if (zpa.zpa_max_depth != 0) { 1772a3f829aeSBill Moore if (zpa.zpa_type == ZIO_WALK_SELF) 1773a3f829aeSBill Moore zpa.zpa_type = ZIO_WALK_CHILD; 1774a3f829aeSBill Moore } else if (zpa.zpa_type != ZIO_WALK_SELF) { 1775a3f829aeSBill Moore zpa.zpa_min_depth = 1; 1776a3f829aeSBill Moore zpa.zpa_max_depth = 1; 1777a3f829aeSBill Moore } 1778a3f829aeSBill Moore 1779ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio_t), addr) == -1) { 1780ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", addr); 1781ccae0b50Seschrock return (DCMD_ERR); 1782ccae0b50Seschrock } 1783ccae0b50Seschrock 1784a3f829aeSBill Moore if (!(flags & DCMD_PIPE_OUT) && DCMD_HDRSPEC(flags)) 1785a3f829aeSBill Moore mdb_printf("%<u>%-*s %-5s %-16s %-?s%</u>\n", ZIO_MAXWIDTH, 1786fac3008cSeschrock "ADDRESS", "TYPE", "STAGE", "WAITER"); 1787fac3008cSeschrock 1788a3f829aeSBill Moore if (zio_print_cb(addr, &zio, &zpa) != WALK_NEXT) 1789ccae0b50Seschrock return (DCMD_ERR); 1790ccae0b50Seschrock 1791ccae0b50Seschrock return (DCMD_OK); 1792ccae0b50Seschrock } 1793ccae0b50Seschrock 1794ccae0b50Seschrock /* 1795ccae0b50Seschrock * [addr]::zio_state 1796ccae0b50Seschrock * 1797ccae0b50Seschrock * Print a summary of all zio_t structures on the system, or for a particular 1798ccae0b50Seschrock * pool. This is equivalent to '::walk zio_root | ::zio'. 1799ccae0b50Seschrock */ 1800ccae0b50Seschrock /*ARGSUSED*/ 1801ccae0b50Seschrock static int 1802ccae0b50Seschrock zio_state(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1803ccae0b50Seschrock { 1804ccae0b50Seschrock /* 1805ccae0b50Seschrock * MDB will remember the last address of the pipeline, so if we don't 1806ccae0b50Seschrock * zero this we'll end up trying to walk zio structures for a 1807ccae0b50Seschrock * non-existent spa_t. 1808ccae0b50Seschrock */ 1809ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1810ccae0b50Seschrock addr = 0; 1811ccae0b50Seschrock 1812ccae0b50Seschrock return (mdb_pwalk_dcmd("zio_root", "zio", argc, argv, addr)); 1813ccae0b50Seschrock } 1814ccae0b50Seschrock 1815fa9e4066Sahrens typedef struct txg_list_walk_data { 1816fa9e4066Sahrens uintptr_t lw_head[TXG_SIZE]; 1817fa9e4066Sahrens int lw_txgoff; 1818fa9e4066Sahrens int lw_maxoff; 1819fa9e4066Sahrens size_t lw_offset; 1820fa9e4066Sahrens void *lw_obj; 1821fa9e4066Sahrens } txg_list_walk_data_t; 1822fa9e4066Sahrens 1823fa9e4066Sahrens static int 1824fa9e4066Sahrens txg_list_walk_init_common(mdb_walk_state_t *wsp, int txg, int maxoff) 1825fa9e4066Sahrens { 1826fa9e4066Sahrens txg_list_walk_data_t *lwd; 1827fa9e4066Sahrens txg_list_t list; 1828fa9e4066Sahrens int i; 1829fa9e4066Sahrens 1830fa9e4066Sahrens lwd = mdb_alloc(sizeof (txg_list_walk_data_t), UM_SLEEP | UM_GC); 1831fa9e4066Sahrens if (mdb_vread(&list, sizeof (txg_list_t), wsp->walk_addr) == -1) { 1832fa9e4066Sahrens mdb_warn("failed to read txg_list_t at %#lx", wsp->walk_addr); 1833fa9e4066Sahrens return (WALK_ERR); 1834fa9e4066Sahrens } 1835fa9e4066Sahrens 1836fa9e4066Sahrens for (i = 0; i < TXG_SIZE; i++) 1837fa9e4066Sahrens lwd->lw_head[i] = (uintptr_t)list.tl_head[i]; 1838fa9e4066Sahrens lwd->lw_offset = list.tl_offset; 1839fa9e4066Sahrens lwd->lw_obj = mdb_alloc(lwd->lw_offset + sizeof (txg_node_t), 1840fa9e4066Sahrens UM_SLEEP | UM_GC); 1841fa9e4066Sahrens lwd->lw_txgoff = txg; 1842fa9e4066Sahrens lwd->lw_maxoff = maxoff; 1843fa9e4066Sahrens 1844fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1845fa9e4066Sahrens wsp->walk_data = lwd; 1846fa9e4066Sahrens 1847fa9e4066Sahrens return (WALK_NEXT); 1848fa9e4066Sahrens } 1849fa9e4066Sahrens 1850fa9e4066Sahrens static int 1851fa9e4066Sahrens txg_list_walk_init(mdb_walk_state_t *wsp) 1852fa9e4066Sahrens { 1853fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, TXG_SIZE-1)); 1854fa9e4066Sahrens } 1855fa9e4066Sahrens 1856fa9e4066Sahrens static int 1857fa9e4066Sahrens txg_list0_walk_init(mdb_walk_state_t *wsp) 1858fa9e4066Sahrens { 1859fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, 0)); 1860fa9e4066Sahrens } 1861fa9e4066Sahrens 1862fa9e4066Sahrens static int 1863fa9e4066Sahrens txg_list1_walk_init(mdb_walk_state_t *wsp) 1864fa9e4066Sahrens { 1865fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 1, 1)); 1866fa9e4066Sahrens } 1867fa9e4066Sahrens 1868fa9e4066Sahrens static int 1869fa9e4066Sahrens txg_list2_walk_init(mdb_walk_state_t *wsp) 1870fa9e4066Sahrens { 1871fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 2, 2)); 1872fa9e4066Sahrens } 1873fa9e4066Sahrens 1874fa9e4066Sahrens static int 1875fa9e4066Sahrens txg_list3_walk_init(mdb_walk_state_t *wsp) 1876fa9e4066Sahrens { 1877fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 3, 3)); 1878fa9e4066Sahrens } 1879fa9e4066Sahrens 1880fa9e4066Sahrens static int 1881fa9e4066Sahrens txg_list_walk_step(mdb_walk_state_t *wsp) 1882fa9e4066Sahrens { 1883fa9e4066Sahrens txg_list_walk_data_t *lwd = wsp->walk_data; 1884fa9e4066Sahrens uintptr_t addr; 1885fa9e4066Sahrens txg_node_t *node; 1886fa9e4066Sahrens int status; 1887fa9e4066Sahrens 1888fa9e4066Sahrens while (wsp->walk_addr == NULL && lwd->lw_txgoff < lwd->lw_maxoff) { 1889fa9e4066Sahrens lwd->lw_txgoff++; 1890fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1891fa9e4066Sahrens } 1892fa9e4066Sahrens 1893fa9e4066Sahrens if (wsp->walk_addr == NULL) 1894fa9e4066Sahrens return (WALK_DONE); 1895fa9e4066Sahrens 1896fa9e4066Sahrens addr = wsp->walk_addr - lwd->lw_offset; 1897fa9e4066Sahrens 1898fa9e4066Sahrens if (mdb_vread(lwd->lw_obj, 1899fa9e4066Sahrens lwd->lw_offset + sizeof (txg_node_t), addr) == -1) { 1900fa9e4066Sahrens mdb_warn("failed to read list element at %#lx", addr); 1901fa9e4066Sahrens return (WALK_ERR); 1902fa9e4066Sahrens } 1903fa9e4066Sahrens 1904fa9e4066Sahrens status = wsp->walk_callback(addr, lwd->lw_obj, wsp->walk_cbdata); 1905fa9e4066Sahrens node = (txg_node_t *)((uintptr_t)lwd->lw_obj + lwd->lw_offset); 1906fa9e4066Sahrens wsp->walk_addr = (uintptr_t)node->tn_next[lwd->lw_txgoff]; 1907fa9e4066Sahrens 1908fa9e4066Sahrens return (status); 1909fa9e4066Sahrens } 1910fa9e4066Sahrens 1911fa9e4066Sahrens /* 1912fa9e4066Sahrens * ::walk spa 1913fa9e4066Sahrens * 1914fa9e4066Sahrens * Walk all named spa_t structures in the namespace. This is nothing more than 1915fa9e4066Sahrens * a layered avl walk. 1916fa9e4066Sahrens */ 1917fa9e4066Sahrens static int 1918fa9e4066Sahrens spa_walk_init(mdb_walk_state_t *wsp) 1919fa9e4066Sahrens { 1920fa9e4066Sahrens GElf_Sym sym; 1921fa9e4066Sahrens 1922fa9e4066Sahrens if (wsp->walk_addr != NULL) { 1923fa9e4066Sahrens mdb_warn("spa walk only supports global walks\n"); 1924fa9e4066Sahrens return (WALK_ERR); 1925fa9e4066Sahrens } 1926fa9e4066Sahrens 1927fa9e4066Sahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "spa_namespace_avl", &sym) == -1) { 1928fa9e4066Sahrens mdb_warn("failed to find symbol 'spa_namespace_avl'"); 1929fa9e4066Sahrens return (WALK_ERR); 1930fa9e4066Sahrens } 1931fa9e4066Sahrens 1932fa9e4066Sahrens wsp->walk_addr = (uintptr_t)sym.st_value; 1933fa9e4066Sahrens 1934fa9e4066Sahrens if (mdb_layered_walk("avl", wsp) == -1) { 1935fa9e4066Sahrens mdb_warn("failed to walk 'avl'\n"); 1936fa9e4066Sahrens return (WALK_ERR); 1937fa9e4066Sahrens } 1938fa9e4066Sahrens 1939fa9e4066Sahrens return (WALK_NEXT); 1940fa9e4066Sahrens } 1941fa9e4066Sahrens 1942fa9e4066Sahrens static int 1943fa9e4066Sahrens spa_walk_step(mdb_walk_state_t *wsp) 1944fa9e4066Sahrens { 1945fa9e4066Sahrens spa_t spa; 1946fa9e4066Sahrens 1947fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), wsp->walk_addr) == -1) { 1948fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", wsp->walk_addr); 1949fa9e4066Sahrens return (WALK_ERR); 1950fa9e4066Sahrens } 1951fa9e4066Sahrens 1952fa9e4066Sahrens return (wsp->walk_callback(wsp->walk_addr, &spa, wsp->walk_cbdata)); 1953fa9e4066Sahrens } 1954fa9e4066Sahrens 1955ccae0b50Seschrock /* 1956ccae0b50Seschrock * [addr]::walk zio 1957ccae0b50Seschrock * 1958ccae0b50Seschrock * Walk all active zio_t structures on the system. This is simply a layered 1959ccae0b50Seschrock * walk on top of ::walk zio_cache, with the optional ability to limit the 1960ccae0b50Seschrock * structures to a particular pool. 1961ccae0b50Seschrock */ 1962ccae0b50Seschrock static int 1963ccae0b50Seschrock zio_walk_init(mdb_walk_state_t *wsp) 1964ccae0b50Seschrock { 1965ccae0b50Seschrock wsp->walk_data = (void *)wsp->walk_addr; 1966ccae0b50Seschrock 1967ccae0b50Seschrock if (mdb_layered_walk("zio_cache", wsp) == -1) { 1968ccae0b50Seschrock mdb_warn("failed to walk 'zio_cache'\n"); 1969ccae0b50Seschrock return (WALK_ERR); 1970ccae0b50Seschrock } 1971ccae0b50Seschrock 1972ccae0b50Seschrock return (WALK_NEXT); 1973ccae0b50Seschrock } 1974ccae0b50Seschrock 1975ccae0b50Seschrock static int 1976ccae0b50Seschrock zio_walk_step(mdb_walk_state_t *wsp) 1977ccae0b50Seschrock { 1978ccae0b50Seschrock zio_t zio; 1979ccae0b50Seschrock 1980ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1981ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1982ccae0b50Seschrock return (WALK_ERR); 1983ccae0b50Seschrock } 1984ccae0b50Seschrock 1985ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1986ccae0b50Seschrock return (WALK_NEXT); 1987ccae0b50Seschrock 1988ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1989ccae0b50Seschrock } 1990ccae0b50Seschrock 1991ccae0b50Seschrock /* 1992ccae0b50Seschrock * [addr]::walk zio_root 1993ccae0b50Seschrock * 1994ccae0b50Seschrock * Walk only root zio_t structures, optionally for a particular spa_t. 1995ccae0b50Seschrock */ 1996ccae0b50Seschrock static int 1997ccae0b50Seschrock zio_walk_root_step(mdb_walk_state_t *wsp) 1998ccae0b50Seschrock { 1999ccae0b50Seschrock zio_t zio; 2000ccae0b50Seschrock 2001ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 2002ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 2003ccae0b50Seschrock return (WALK_ERR); 2004ccae0b50Seschrock } 2005ccae0b50Seschrock 2006ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 2007ccae0b50Seschrock return (WALK_NEXT); 2008ccae0b50Seschrock 2009a3f829aeSBill Moore /* If the parent list is not empty, ignore */ 2010a3f829aeSBill Moore if (zio.io_parent_list.list_head.list_next != 2011a3f829aeSBill Moore &((zio_t *)wsp->walk_addr)->io_parent_list.list_head) 2012ccae0b50Seschrock return (WALK_NEXT); 2013ccae0b50Seschrock 2014ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 2015ccae0b50Seschrock } 2016ccae0b50Seschrock 201788b7b0f2SMatthew Ahrens #define NICENUM_BUFLEN 6 201888b7b0f2SMatthew Ahrens 201988b7b0f2SMatthew Ahrens static int 2020ff64c0f7SMatthew Ahrens snprintfrac(char *buf, int len, 2021ff64c0f7SMatthew Ahrens uint64_t numerator, uint64_t denom, int frac_digits) 202288b7b0f2SMatthew Ahrens { 2023ff64c0f7SMatthew Ahrens int mul = 1; 202488b7b0f2SMatthew Ahrens int whole, frac, i; 202588b7b0f2SMatthew Ahrens 202688b7b0f2SMatthew Ahrens for (i = frac_digits; i; i--) 202788b7b0f2SMatthew Ahrens mul *= 10; 2028ff64c0f7SMatthew Ahrens whole = numerator / denom; 2029ff64c0f7SMatthew Ahrens frac = mul * numerator / denom - mul * whole; 203088b7b0f2SMatthew Ahrens return (mdb_snprintf(buf, len, "%u.%0*u", whole, frac_digits, frac)); 203188b7b0f2SMatthew Ahrens } 203288b7b0f2SMatthew Ahrens 203388b7b0f2SMatthew Ahrens static void 203488b7b0f2SMatthew Ahrens mdb_nicenum(uint64_t num, char *buf) 203588b7b0f2SMatthew Ahrens { 203688b7b0f2SMatthew Ahrens uint64_t n = num; 203788b7b0f2SMatthew Ahrens int index = 0; 203888b7b0f2SMatthew Ahrens char *u; 203988b7b0f2SMatthew Ahrens 204088b7b0f2SMatthew Ahrens while (n >= 1024) { 204188b7b0f2SMatthew Ahrens n = (n + (1024 / 2)) / 1024; /* Round up or down */ 204288b7b0f2SMatthew Ahrens index++; 204388b7b0f2SMatthew Ahrens } 204488b7b0f2SMatthew Ahrens 204588b7b0f2SMatthew Ahrens u = &" \0K\0M\0G\0T\0P\0E\0"[index*2]; 204688b7b0f2SMatthew Ahrens 204788b7b0f2SMatthew Ahrens if (index == 0) { 204888b7b0f2SMatthew Ahrens (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu", 204988b7b0f2SMatthew Ahrens (u_longlong_t)n); 205088b7b0f2SMatthew Ahrens } else if (n < 10 && (num & (num - 1)) != 0) { 2051ff64c0f7SMatthew Ahrens (void) snprintfrac(buf, NICENUM_BUFLEN, 2052ff64c0f7SMatthew Ahrens num, 1ULL << 10 * index, 2); 205388b7b0f2SMatthew Ahrens strcat(buf, u); 205488b7b0f2SMatthew Ahrens } else if (n < 100 && (num & (num - 1)) != 0) { 2055ff64c0f7SMatthew Ahrens (void) snprintfrac(buf, NICENUM_BUFLEN, 2056ff64c0f7SMatthew Ahrens num, 1ULL << 10 * index, 1); 205788b7b0f2SMatthew Ahrens strcat(buf, u); 205888b7b0f2SMatthew Ahrens } else { 205988b7b0f2SMatthew Ahrens (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu%s", 206088b7b0f2SMatthew Ahrens (u_longlong_t)n, u); 206188b7b0f2SMatthew Ahrens } 206288b7b0f2SMatthew Ahrens } 206388b7b0f2SMatthew Ahrens 206488b7b0f2SMatthew Ahrens /* 206588b7b0f2SMatthew Ahrens * ::zfs_blkstats 206688b7b0f2SMatthew Ahrens * 206788b7b0f2SMatthew Ahrens * -v print verbose per-level information 206888b7b0f2SMatthew Ahrens * 206988b7b0f2SMatthew Ahrens */ 207088b7b0f2SMatthew Ahrens static int 207188b7b0f2SMatthew Ahrens zfs_blkstats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 207288b7b0f2SMatthew Ahrens { 207388b7b0f2SMatthew Ahrens boolean_t verbose = B_FALSE; 207488b7b0f2SMatthew Ahrens zfs_all_blkstats_t stats; 207588b7b0f2SMatthew Ahrens dmu_object_type_t t; 207688b7b0f2SMatthew Ahrens zfs_blkstat_t *tzb; 207788b7b0f2SMatthew Ahrens uint64_t ditto; 207888b7b0f2SMatthew Ahrens dmu_object_type_info_t dmu_ot[DMU_OT_NUMTYPES + 10]; 207988b7b0f2SMatthew Ahrens /* +10 in case it grew */ 208088b7b0f2SMatthew Ahrens 208188b7b0f2SMatthew Ahrens if (mdb_readvar(&dmu_ot, "dmu_ot") == -1) { 208288b7b0f2SMatthew Ahrens mdb_warn("failed to read 'dmu_ot'"); 208388b7b0f2SMatthew Ahrens return (DCMD_ERR); 208488b7b0f2SMatthew Ahrens } 208588b7b0f2SMatthew Ahrens 208688b7b0f2SMatthew Ahrens if (mdb_getopts(argc, argv, 208788b7b0f2SMatthew Ahrens 'v', MDB_OPT_SETBITS, TRUE, &verbose, 208888b7b0f2SMatthew Ahrens NULL) != argc) 208988b7b0f2SMatthew Ahrens return (DCMD_USAGE); 209088b7b0f2SMatthew Ahrens 209188b7b0f2SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) 209288b7b0f2SMatthew Ahrens return (DCMD_USAGE); 209388b7b0f2SMatthew Ahrens 209488b7b0f2SMatthew Ahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, addr) || 209588b7b0f2SMatthew Ahrens GETMEMB(addr, struct dsl_pool, dp_blkstats, addr) || 209688b7b0f2SMatthew Ahrens mdb_vread(&stats, sizeof (zfs_all_blkstats_t), addr) == -1) { 209788b7b0f2SMatthew Ahrens mdb_warn("failed to read data at %p;", addr); 209888b7b0f2SMatthew Ahrens mdb_printf("maybe no stats? run \"zpool scrub\" first."); 209988b7b0f2SMatthew Ahrens return (DCMD_ERR); 210088b7b0f2SMatthew Ahrens } 210188b7b0f2SMatthew Ahrens 210288b7b0f2SMatthew Ahrens tzb = &stats.zab_type[DN_MAX_LEVELS][DMU_OT_NUMTYPES]; 210388b7b0f2SMatthew Ahrens if (tzb->zb_gangs != 0) { 210488b7b0f2SMatthew Ahrens mdb_printf("Ganged blocks: %llu\n", 210588b7b0f2SMatthew Ahrens (longlong_t)tzb->zb_gangs); 210688b7b0f2SMatthew Ahrens } 210788b7b0f2SMatthew Ahrens 210888b7b0f2SMatthew Ahrens ditto = tzb->zb_ditto_2_of_2_samevdev + tzb->zb_ditto_2_of_3_samevdev + 210988b7b0f2SMatthew Ahrens tzb->zb_ditto_3_of_3_samevdev; 211088b7b0f2SMatthew Ahrens if (ditto != 0) { 211188b7b0f2SMatthew Ahrens mdb_printf("Dittoed blocks on same vdev: %llu\n", 211288b7b0f2SMatthew Ahrens (longlong_t)ditto); 211388b7b0f2SMatthew Ahrens } 211488b7b0f2SMatthew Ahrens 211588b7b0f2SMatthew Ahrens mdb_printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 211688b7b0f2SMatthew Ahrens "\t avg\t comp\t%%Total\tType\n"); 211788b7b0f2SMatthew Ahrens 211888b7b0f2SMatthew Ahrens for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 211988b7b0f2SMatthew Ahrens char csize[NICENUM_BUFLEN], lsize[NICENUM_BUFLEN]; 212088b7b0f2SMatthew Ahrens char psize[NICENUM_BUFLEN], asize[NICENUM_BUFLEN]; 212188b7b0f2SMatthew Ahrens char avg[NICENUM_BUFLEN]; 212288b7b0f2SMatthew Ahrens char comp[NICENUM_BUFLEN], pct[NICENUM_BUFLEN]; 212388b7b0f2SMatthew Ahrens char typename[64]; 212488b7b0f2SMatthew Ahrens int l; 212588b7b0f2SMatthew Ahrens 212688b7b0f2SMatthew Ahrens 212788b7b0f2SMatthew Ahrens if (t == DMU_OT_DEFERRED) 212888b7b0f2SMatthew Ahrens strcpy(typename, "deferred free"); 212988b7b0f2SMatthew Ahrens else if (t == DMU_OT_TOTAL) 213088b7b0f2SMatthew Ahrens strcpy(typename, "Total"); 213188b7b0f2SMatthew Ahrens else if (mdb_readstr(typename, sizeof (typename), 213288b7b0f2SMatthew Ahrens (uintptr_t)dmu_ot[t].ot_name) == -1) { 213388b7b0f2SMatthew Ahrens mdb_warn("failed to read type name"); 213488b7b0f2SMatthew Ahrens return (DCMD_ERR); 213588b7b0f2SMatthew Ahrens } 213688b7b0f2SMatthew Ahrens 213788b7b0f2SMatthew Ahrens if (stats.zab_type[DN_MAX_LEVELS][t].zb_asize == 0) 213888b7b0f2SMatthew Ahrens continue; 213988b7b0f2SMatthew Ahrens 214088b7b0f2SMatthew Ahrens for (l = -1; l < DN_MAX_LEVELS; l++) { 214188b7b0f2SMatthew Ahrens int level = (l == -1 ? DN_MAX_LEVELS : l); 214288b7b0f2SMatthew Ahrens zfs_blkstat_t *zb = &stats.zab_type[level][t]; 214388b7b0f2SMatthew Ahrens 214488b7b0f2SMatthew Ahrens if (zb->zb_asize == 0) 214588b7b0f2SMatthew Ahrens continue; 214688b7b0f2SMatthew Ahrens 214788b7b0f2SMatthew Ahrens /* 214888b7b0f2SMatthew Ahrens * Don't print each level unless requested. 214988b7b0f2SMatthew Ahrens */ 215088b7b0f2SMatthew Ahrens if (!verbose && level != DN_MAX_LEVELS) 215188b7b0f2SMatthew Ahrens continue; 215288b7b0f2SMatthew Ahrens 215388b7b0f2SMatthew Ahrens /* 215488b7b0f2SMatthew Ahrens * If all the space is level 0, don't print the 215588b7b0f2SMatthew Ahrens * level 0 separately. 215688b7b0f2SMatthew Ahrens */ 215788b7b0f2SMatthew Ahrens if (level == 0 && zb->zb_asize == 215888b7b0f2SMatthew Ahrens stats.zab_type[DN_MAX_LEVELS][t].zb_asize) 215988b7b0f2SMatthew Ahrens continue; 216088b7b0f2SMatthew Ahrens 216188b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_count, csize); 216288b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_lsize, lsize); 216388b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_psize, psize); 216488b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize, asize); 216588b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2166ff64c0f7SMatthew Ahrens (void) snprintfrac(comp, NICENUM_BUFLEN, 2167ff64c0f7SMatthew Ahrens zb->zb_lsize, zb->zb_psize, 2); 2168ff64c0f7SMatthew Ahrens (void) snprintfrac(pct, NICENUM_BUFLEN, 2169ff64c0f7SMatthew Ahrens 100 * zb->zb_asize, tzb->zb_asize, 2); 217088b7b0f2SMatthew Ahrens 217188b7b0f2SMatthew Ahrens mdb_printf("%6s\t%5s\t%5s\t%5s\t%5s" 217288b7b0f2SMatthew Ahrens "\t%5s\t%6s\t", 217388b7b0f2SMatthew Ahrens csize, lsize, psize, asize, avg, comp, pct); 217488b7b0f2SMatthew Ahrens 217588b7b0f2SMatthew Ahrens if (level == DN_MAX_LEVELS) 217688b7b0f2SMatthew Ahrens mdb_printf("%s\n", typename); 217788b7b0f2SMatthew Ahrens else 217888b7b0f2SMatthew Ahrens mdb_printf(" L%d %s\n", 217988b7b0f2SMatthew Ahrens level, typename); 218088b7b0f2SMatthew Ahrens } 218188b7b0f2SMatthew Ahrens } 218288b7b0f2SMatthew Ahrens 218388b7b0f2SMatthew Ahrens return (DCMD_OK); 218488b7b0f2SMatthew Ahrens } 218588b7b0f2SMatthew Ahrens 21869966ca11SMatthew Ahrens /* ARGSUSED */ 21879966ca11SMatthew Ahrens static int 21889966ca11SMatthew Ahrens reference_cb(uintptr_t addr, const void *ignored, void *arg) 21899966ca11SMatthew Ahrens { 21909966ca11SMatthew Ahrens static int gotid; 21919966ca11SMatthew Ahrens static mdb_ctf_id_t ref_id; 21929966ca11SMatthew Ahrens uintptr_t ref_holder; 21939966ca11SMatthew Ahrens uintptr_t ref_removed; 21949966ca11SMatthew Ahrens uint64_t ref_number; 21959966ca11SMatthew Ahrens boolean_t holder_is_str; 21969966ca11SMatthew Ahrens char holder_str[128]; 21979966ca11SMatthew Ahrens boolean_t removed = (boolean_t)arg; 21989966ca11SMatthew Ahrens 21999966ca11SMatthew Ahrens if (!gotid) { 22009966ca11SMatthew Ahrens if (mdb_ctf_lookup_by_name("struct reference", &ref_id) == -1) { 22019966ca11SMatthew Ahrens mdb_warn("couldn't find struct reference"); 22029966ca11SMatthew Ahrens return (WALK_ERR); 22039966ca11SMatthew Ahrens } 22049966ca11SMatthew Ahrens gotid = TRUE; 22059966ca11SMatthew Ahrens } 22069966ca11SMatthew Ahrens 22079966ca11SMatthew Ahrens if (GETMEMBID(addr, &ref_id, ref_holder, ref_holder) || 22089966ca11SMatthew Ahrens GETMEMBID(addr, &ref_id, ref_removed, ref_removed) || 22099966ca11SMatthew Ahrens GETMEMBID(addr, &ref_id, ref_number, ref_number)) 22109966ca11SMatthew Ahrens return (WALK_ERR); 22119966ca11SMatthew Ahrens 22129966ca11SMatthew Ahrens if (mdb_readstr(holder_str, sizeof (holder_str), ref_holder) != -1) { 22139966ca11SMatthew Ahrens char *cp; 22149966ca11SMatthew Ahrens holder_is_str = B_TRUE; 22159966ca11SMatthew Ahrens for (cp = holder_str; *cp; cp++) { 22169966ca11SMatthew Ahrens if (!isprint(*cp)) { 22179966ca11SMatthew Ahrens holder_is_str = B_FALSE; 22189966ca11SMatthew Ahrens break; 22199966ca11SMatthew Ahrens } 22209966ca11SMatthew Ahrens } 22219966ca11SMatthew Ahrens } else { 22229966ca11SMatthew Ahrens holder_is_str = B_FALSE; 22239966ca11SMatthew Ahrens } 22249966ca11SMatthew Ahrens 22259966ca11SMatthew Ahrens if (removed) 22269966ca11SMatthew Ahrens mdb_printf("removed "); 22279966ca11SMatthew Ahrens mdb_printf("reference "); 22289966ca11SMatthew Ahrens if (ref_number != 1) 22299966ca11SMatthew Ahrens mdb_printf("with count=%llu ", ref_number); 22309966ca11SMatthew Ahrens mdb_printf("with tag %p", (void*)ref_holder); 22319966ca11SMatthew Ahrens if (holder_is_str) 22329966ca11SMatthew Ahrens mdb_printf(" \"%s\"", holder_str); 22339966ca11SMatthew Ahrens mdb_printf(", held at:\n"); 22349966ca11SMatthew Ahrens 22359966ca11SMatthew Ahrens (void) mdb_call_dcmd("whatis", addr, DCMD_ADDRSPEC, 0, NULL); 22369966ca11SMatthew Ahrens 22379966ca11SMatthew Ahrens if (removed) { 22389966ca11SMatthew Ahrens mdb_printf("removed at:\n"); 22399966ca11SMatthew Ahrens (void) mdb_call_dcmd("whatis", ref_removed, 22409966ca11SMatthew Ahrens DCMD_ADDRSPEC, 0, NULL); 22419966ca11SMatthew Ahrens } 22429966ca11SMatthew Ahrens 22439966ca11SMatthew Ahrens mdb_printf("\n"); 22449966ca11SMatthew Ahrens 22459966ca11SMatthew Ahrens return (WALK_NEXT); 22469966ca11SMatthew Ahrens } 22479966ca11SMatthew Ahrens 22489966ca11SMatthew Ahrens /* ARGSUSED */ 22499966ca11SMatthew Ahrens static int 22509966ca11SMatthew Ahrens refcount(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 22519966ca11SMatthew Ahrens { 22529966ca11SMatthew Ahrens uint64_t rc_count, rc_removed_count; 22539966ca11SMatthew Ahrens uintptr_t rc_list, rc_removed; 22549966ca11SMatthew Ahrens static int gotid; 22559966ca11SMatthew Ahrens static mdb_ctf_id_t rc_id; 22569966ca11SMatthew Ahrens ulong_t off; 22579966ca11SMatthew Ahrens 22589966ca11SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) 22599966ca11SMatthew Ahrens return (DCMD_USAGE); 22609966ca11SMatthew Ahrens 22619966ca11SMatthew Ahrens if (!gotid) { 22629966ca11SMatthew Ahrens if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) { 22639966ca11SMatthew Ahrens mdb_warn("couldn't find struct refcount"); 22649966ca11SMatthew Ahrens return (DCMD_ERR); 22659966ca11SMatthew Ahrens } 22669966ca11SMatthew Ahrens gotid = TRUE; 22679966ca11SMatthew Ahrens } 22689966ca11SMatthew Ahrens 22699966ca11SMatthew Ahrens if (GETMEMBID(addr, &rc_id, rc_count, rc_count) || 22709966ca11SMatthew Ahrens GETMEMBID(addr, &rc_id, rc_removed_count, rc_removed_count)) 22719966ca11SMatthew Ahrens return (DCMD_ERR); 22729966ca11SMatthew Ahrens 22739966ca11SMatthew Ahrens mdb_printf("refcount_t at %p has %llu current holds, " 22749966ca11SMatthew Ahrens "%llu recently released holds\n", 22759966ca11SMatthew Ahrens addr, (longlong_t)rc_count, (longlong_t)rc_removed_count); 22769966ca11SMatthew Ahrens 22779966ca11SMatthew Ahrens if (rc_count > 0) 22789966ca11SMatthew Ahrens mdb_printf("current holds:\n"); 22799966ca11SMatthew Ahrens if (mdb_ctf_offsetof(rc_id, "rc_list", &off) == -1) 22809966ca11SMatthew Ahrens return (DCMD_ERR); 22819966ca11SMatthew Ahrens rc_list = addr + off/NBBY; 22829966ca11SMatthew Ahrens mdb_pwalk("list", reference_cb, (void*)B_FALSE, rc_list); 22839966ca11SMatthew Ahrens 22849966ca11SMatthew Ahrens if (rc_removed_count > 0) 22859966ca11SMatthew Ahrens mdb_printf("released holds:\n"); 22869966ca11SMatthew Ahrens if (mdb_ctf_offsetof(rc_id, "rc_removed", &off) == -1) 22879966ca11SMatthew Ahrens return (DCMD_ERR); 22889966ca11SMatthew Ahrens rc_removed = addr + off/NBBY; 22899966ca11SMatthew Ahrens mdb_pwalk("list", reference_cb, (void*)B_TRUE, rc_removed); 22909966ca11SMatthew Ahrens 22919966ca11SMatthew Ahrens return (DCMD_OK); 22929966ca11SMatthew Ahrens } 22939966ca11SMatthew Ahrens 2294fa9e4066Sahrens /* 2295fa9e4066Sahrens * MDB module linkage information: 2296fa9e4066Sahrens * 2297fa9e4066Sahrens * We declare a list of structures describing our dcmds, and a function 2298fa9e4066Sahrens * named _mdb_init to return a pointer to our module information. 2299fa9e4066Sahrens */ 2300fa9e4066Sahrens 2301fa9e4066Sahrens static const mdb_dcmd_t dcmds[] = { 230291ebeef5Sahrens { "arc", "[-bkmg]", "print ARC variables", arc_print }, 2303fa9e4066Sahrens { "blkptr", ":", "print blkptr_t", blkptr }, 2304fa9e4066Sahrens { "dbuf", ":", "print dmu_buf_impl_t", dbuf }, 2305fa9e4066Sahrens { "dbuf_stats", ":", "dbuf stats", dbuf_stats }, 2306fa9e4066Sahrens { "dbufs", 2307503ad85cSMatthew Ahrens "\t[-O objset_t*] [-n objset_name | \"mos\"] " 2308a3f829aeSBill Moore "[-o object | \"mdn\"] \n" 2309a3f829aeSBill Moore "\t[-l level] [-b blkid | \"bonus\"]", 2310a3f829aeSBill Moore "find dmu_buf_impl_t's that match specified criteria", dbufs }, 2311fa9e4066Sahrens { "abuf_find", "dva_word[0] dva_word[1]", 2312a3f829aeSBill Moore "find arc_buf_hdr_t of a specified DVA", 2313a3f829aeSBill Moore abuf_find }, 2314fa9e4066Sahrens { "spa", "?[-cv]", "spa_t summary", spa_print }, 2315fa9e4066Sahrens { "spa_config", ":", "print spa_t configuration", spa_print_config }, 2316fa9e4066Sahrens { "spa_verify", ":", "verify spa_t consistency", spa_verify }, 2317fa9e4066Sahrens { "spa_space", ":[-b]", "print spa_t on-disk space usage", spa_space }, 2318fa9e4066Sahrens { "spa_vdevs", ":", "given a spa_t, print vdev summary", spa_vdevs }, 231991ebeef5Sahrens { "vdev", ":[-re]\n" 2320a3f829aeSBill Moore "\t-r display recursively\n" 2321a3f829aeSBill Moore "\t-e print statistics", 2322a3f829aeSBill Moore "vdev_t summary", vdev_print }, 2323a3f829aeSBill Moore { "zio", ":[cpr]\n" 2324a3f829aeSBill Moore "\t-c display children\n" 2325a3f829aeSBill Moore "\t-p display parents\n" 2326a3f829aeSBill Moore "\t-r display recursively", 2327a3f829aeSBill Moore "zio_t summary", zio_print }, 2328ccae0b50Seschrock { "zio_state", "?", "print out all zio_t structures on system or " 2329ccae0b50Seschrock "for a particular pool", zio_state }, 233088b7b0f2SMatthew Ahrens { "zfs_blkstats", ":[-v]", 233188b7b0f2SMatthew Ahrens "given a spa_t, print block type stats from last scrub", 233288b7b0f2SMatthew Ahrens zfs_blkstats }, 2333614409b5Sahrens { "zfs_params", "", "print zfs tunable parameters", zfs_params }, 23349966ca11SMatthew Ahrens { "refcount", "", "print refcount_t holders", refcount }, 23353f1f8012SMatthew Ahrens { "zap_leaf", "", "print zap_leaf_phys_t", zap_leaf }, 2336fa9e4066Sahrens { NULL } 2337fa9e4066Sahrens }; 2338fa9e4066Sahrens 2339fa9e4066Sahrens static const mdb_walker_t walkers[] = { 2340fa9e4066Sahrens /* 2341fa9e4066Sahrens * In userland, there is no generic provider of list_t walkers, so we 2342fa9e4066Sahrens * need to add it. 2343fa9e4066Sahrens */ 2344fa9e4066Sahrens #ifndef _KERNEL 2345fa9e4066Sahrens { LIST_WALK_NAME, LIST_WALK_DESC, 2346fa9e4066Sahrens list_walk_init, list_walk_step, list_walk_fini }, 2347fa9e4066Sahrens #endif 2348fa9e4066Sahrens { "zms_freelist", "walk ZFS metaslab freelist", 23495f5f7a6fSahrens freelist_walk_init, freelist_walk_step, NULL }, 2350fa9e4066Sahrens { "txg_list", "given any txg_list_t *, walk all entries in all txgs", 23515f5f7a6fSahrens txg_list_walk_init, txg_list_walk_step, NULL }, 2352fa9e4066Sahrens { "txg_list0", "given any txg_list_t *, walk all entries in txg 0", 23535f5f7a6fSahrens txg_list0_walk_init, txg_list_walk_step, NULL }, 2354fa9e4066Sahrens { "txg_list1", "given any txg_list_t *, walk all entries in txg 1", 23555f5f7a6fSahrens txg_list1_walk_init, txg_list_walk_step, NULL }, 2356fa9e4066Sahrens { "txg_list2", "given any txg_list_t *, walk all entries in txg 2", 23575f5f7a6fSahrens txg_list2_walk_init, txg_list_walk_step, NULL }, 2358fa9e4066Sahrens { "txg_list3", "given any txg_list_t *, walk all entries in txg 3", 23595f5f7a6fSahrens txg_list3_walk_init, txg_list_walk_step, NULL }, 2360ccae0b50Seschrock { "zio", "walk all zio structures, optionally for a particular spa_t", 2361ccae0b50Seschrock zio_walk_init, zio_walk_step, NULL }, 2362ccae0b50Seschrock { "zio_root", "walk all root zio_t structures, optionally for a " 2363ccae0b50Seschrock "particular spa_t", 2364ccae0b50Seschrock zio_walk_init, zio_walk_root_step, NULL }, 2365fa9e4066Sahrens { "spa", "walk all spa_t entries in the namespace", 2366fa9e4066Sahrens spa_walk_init, spa_walk_step, NULL }, 23675f5f7a6fSahrens { "metaslab", "given a spa_t *, walk all metaslab_t structures", 23685f5f7a6fSahrens metaslab_walk_init, metaslab_walk_step, NULL }, 2369fa9e4066Sahrens { NULL } 2370fa9e4066Sahrens }; 2371fa9e4066Sahrens 2372fa9e4066Sahrens static const mdb_modinfo_t modinfo = { 2373fa9e4066Sahrens MDB_API_VERSION, dcmds, walkers 2374fa9e4066Sahrens }; 2375fa9e4066Sahrens 2376fa9e4066Sahrens const mdb_modinfo_t * 2377fa9e4066Sahrens _mdb_init(void) 2378fa9e4066Sahrens { 2379fa9e4066Sahrens return (&modinfo); 2380fa9e4066Sahrens } 2381