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> 38*3f1f8012SMatthew Ahrens #include <sys/zap_leaf.h> 39*3f1f8012SMatthew 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 52fa9e4066Sahrens static int 53fa9e4066Sahrens getmember(uintptr_t addr, const char *type, mdb_ctf_id_t *idp, 54fa9e4066Sahrens const char *member, int len, void *buf) 55fa9e4066Sahrens { 56fa9e4066Sahrens mdb_ctf_id_t id; 57fa9e4066Sahrens ulong_t off; 58fa9e4066Sahrens char name[64]; 59fa9e4066Sahrens 60fa9e4066Sahrens if (idp == NULL) { 61fa9e4066Sahrens if (mdb_ctf_lookup_by_name(type, &id) == -1) { 62fa9e4066Sahrens mdb_warn("couldn't find type %s", type); 63fa9e4066Sahrens return (DCMD_ERR); 64fa9e4066Sahrens } 65fa9e4066Sahrens idp = &id; 66fa9e4066Sahrens } else { 67fa9e4066Sahrens type = name; 68fa9e4066Sahrens mdb_ctf_type_name(*idp, name, sizeof (name)); 69fa9e4066Sahrens } 70fa9e4066Sahrens 71fa9e4066Sahrens if (mdb_ctf_offsetof(*idp, member, &off) == -1) { 72fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, type); 73fa9e4066Sahrens return (DCMD_ERR); 74fa9e4066Sahrens } 75fa9e4066Sahrens if (off % 8 != 0) { 76fa9e4066Sahrens mdb_warn("member %s of type %s is unsupported bitfield", 77fa9e4066Sahrens member, type); 78fa9e4066Sahrens return (DCMD_ERR); 79fa9e4066Sahrens } 80fa9e4066Sahrens off /= 8; 81fa9e4066Sahrens 82fa9e4066Sahrens if (mdb_vread(buf, len, addr + off) == -1) { 83fa9e4066Sahrens mdb_warn("failed to read %s from %s at %p", 84fa9e4066Sahrens member, type, addr + off); 85fa9e4066Sahrens return (DCMD_ERR); 86fa9e4066Sahrens } 87fa9e4066Sahrens /* mdb_warn("read %s from %s at %p+%llx\n", member, type, addr, off); */ 88fa9e4066Sahrens 89fa9e4066Sahrens return (0); 90fa9e4066Sahrens } 91fa9e4066Sahrens 92fa9e4066Sahrens #define GETMEMB(addr, type, member, dest) \ 93fa9e4066Sahrens getmember(addr, #type, NULL, #member, sizeof (dest), &(dest)) 94fa9e4066Sahrens 95fa9e4066Sahrens #define GETMEMBID(addr, ctfid, member, dest) \ 96fa9e4066Sahrens getmember(addr, NULL, ctfid, #member, sizeof (dest), &(dest)) 97fa9e4066Sahrens 98fa9e4066Sahrens static int 99fa9e4066Sahrens getrefcount(uintptr_t addr, mdb_ctf_id_t *id, 100fa9e4066Sahrens const char *member, uint64_t *rc) 101fa9e4066Sahrens { 102fa9e4066Sahrens static int gotid; 103fa9e4066Sahrens static mdb_ctf_id_t rc_id; 104fa9e4066Sahrens ulong_t off; 105fa9e4066Sahrens 106fa9e4066Sahrens if (!gotid) { 107fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) { 108fa9e4066Sahrens mdb_warn("couldn't find struct refcount"); 109fa9e4066Sahrens return (DCMD_ERR); 110fa9e4066Sahrens } 111fa9e4066Sahrens gotid = TRUE; 112fa9e4066Sahrens } 113fa9e4066Sahrens 114fa9e4066Sahrens if (mdb_ctf_offsetof(*id, member, &off) == -1) { 115fa9e4066Sahrens char name[64]; 116fa9e4066Sahrens mdb_ctf_type_name(*id, name, sizeof (name)); 117fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, name); 118fa9e4066Sahrens return (DCMD_ERR); 119fa9e4066Sahrens } 120fa9e4066Sahrens off /= 8; 121fa9e4066Sahrens 122fa9e4066Sahrens return (GETMEMBID(addr + off, &rc_id, rc_count, *rc)); 123fa9e4066Sahrens } 124fa9e4066Sahrens 125fa9e4066Sahrens static int verbose; 126fa9e4066Sahrens 127fa9e4066Sahrens static int 128fa9e4066Sahrens freelist_walk_init(mdb_walk_state_t *wsp) 129fa9e4066Sahrens { 130fa9e4066Sahrens if (wsp->walk_addr == NULL) { 131fa9e4066Sahrens mdb_warn("must supply starting address\n"); 132fa9e4066Sahrens return (WALK_ERR); 133fa9e4066Sahrens } 134fa9e4066Sahrens 135fa9e4066Sahrens wsp->walk_data = 0; /* Index into the freelist */ 136fa9e4066Sahrens return (WALK_NEXT); 137fa9e4066Sahrens } 138fa9e4066Sahrens 139fa9e4066Sahrens static int 140fa9e4066Sahrens freelist_walk_step(mdb_walk_state_t *wsp) 141fa9e4066Sahrens { 142fa9e4066Sahrens uint64_t entry; 143fa9e4066Sahrens uintptr_t number = (uintptr_t)wsp->walk_data; 1448053a263Sck153898 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 1458053a263Sck153898 "INVALID", "INVALID", "INVALID", "INVALID" }; 146fa9e4066Sahrens int mapshift = SPA_MINBLOCKSHIFT; 147fa9e4066Sahrens 148fa9e4066Sahrens if (mdb_vread(&entry, sizeof (entry), wsp->walk_addr) == -1) { 149fa9e4066Sahrens mdb_warn("failed to read freelist entry %p", wsp->walk_addr); 150fa9e4066Sahrens return (WALK_DONE); 151fa9e4066Sahrens } 152fa9e4066Sahrens wsp->walk_addr += sizeof (entry); 153fa9e4066Sahrens wsp->walk_data = (void *)(number + 1); 154fa9e4066Sahrens 155fa9e4066Sahrens if (SM_DEBUG_DECODE(entry)) { 156fa9e4066Sahrens mdb_printf("DEBUG: %3u %10s: txg=%llu pass=%llu\n", 157fa9e4066Sahrens number, 158fa9e4066Sahrens ddata[SM_DEBUG_ACTION_DECODE(entry)], 159fa9e4066Sahrens SM_DEBUG_TXG_DECODE(entry), 160fa9e4066Sahrens SM_DEBUG_SYNCPASS_DECODE(entry)); 161fa9e4066Sahrens } else { 162fa9e4066Sahrens mdb_printf("Entry: %3u offsets=%08llx-%08llx type=%c " 163fa9e4066Sahrens "size=%06llx", number, 164fa9e4066Sahrens SM_OFFSET_DECODE(entry) << mapshift, 165fa9e4066Sahrens (SM_OFFSET_DECODE(entry) + SM_RUN_DECODE(entry)) << 166fa9e4066Sahrens mapshift, 167fa9e4066Sahrens SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 168fa9e4066Sahrens SM_RUN_DECODE(entry) << mapshift); 169fa9e4066Sahrens if (verbose) 170fa9e4066Sahrens mdb_printf(" (raw=%012llx)\n", entry); 171fa9e4066Sahrens mdb_printf("\n"); 172fa9e4066Sahrens } 173fa9e4066Sahrens return (WALK_NEXT); 174fa9e4066Sahrens } 175fa9e4066Sahrens 176fa9e4066Sahrens 177fa9e4066Sahrens static int 178fa9e4066Sahrens dataset_name(uintptr_t addr, char *buf) 179fa9e4066Sahrens { 180fa9e4066Sahrens static int gotid; 181fa9e4066Sahrens static mdb_ctf_id_t dd_id; 182fa9e4066Sahrens uintptr_t dd_parent; 183fa9e4066Sahrens char dd_myname[MAXNAMELEN]; 184fa9e4066Sahrens 185fa9e4066Sahrens if (!gotid) { 186fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dir", 187fa9e4066Sahrens &dd_id) == -1) { 188fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dir"); 189fa9e4066Sahrens return (DCMD_ERR); 190fa9e4066Sahrens } 191fa9e4066Sahrens gotid = TRUE; 192fa9e4066Sahrens } 193fa9e4066Sahrens if (GETMEMBID(addr, &dd_id, dd_parent, dd_parent) || 194fa9e4066Sahrens GETMEMBID(addr, &dd_id, dd_myname, dd_myname)) { 195fa9e4066Sahrens return (DCMD_ERR); 196fa9e4066Sahrens } 197fa9e4066Sahrens 198fa9e4066Sahrens if (dd_parent) { 199fa9e4066Sahrens if (dataset_name(dd_parent, buf)) 200fa9e4066Sahrens return (DCMD_ERR); 201fa9e4066Sahrens strcat(buf, "/"); 202fa9e4066Sahrens } 203fa9e4066Sahrens 204fa9e4066Sahrens if (dd_myname[0]) 205fa9e4066Sahrens strcat(buf, dd_myname); 206fa9e4066Sahrens else 207fa9e4066Sahrens strcat(buf, "???"); 208fa9e4066Sahrens 209fa9e4066Sahrens return (0); 210fa9e4066Sahrens } 211fa9e4066Sahrens 212fa9e4066Sahrens static int 213fa9e4066Sahrens objset_name(uintptr_t addr, char *buf) 214fa9e4066Sahrens { 215fa9e4066Sahrens static int gotid; 216503ad85cSMatthew Ahrens static mdb_ctf_id_t os_id, ds_id; 217fa9e4066Sahrens uintptr_t os_dsl_dataset; 218fa9e4066Sahrens char ds_snapname[MAXNAMELEN]; 219fa9e4066Sahrens uintptr_t ds_dir; 220fa9e4066Sahrens 221fa9e4066Sahrens buf[0] = '\0'; 222fa9e4066Sahrens 223fa9e4066Sahrens if (!gotid) { 224503ad85cSMatthew Ahrens if (mdb_ctf_lookup_by_name("struct objset", 225503ad85cSMatthew Ahrens &os_id) == -1) { 226503ad85cSMatthew Ahrens mdb_warn("couldn't find struct objset"); 227fa9e4066Sahrens return (DCMD_ERR); 228fa9e4066Sahrens } 229fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dataset", 230fa9e4066Sahrens &ds_id) == -1) { 231fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dataset"); 232fa9e4066Sahrens return (DCMD_ERR); 233fa9e4066Sahrens } 234fa9e4066Sahrens 235fa9e4066Sahrens gotid = TRUE; 236fa9e4066Sahrens } 237fa9e4066Sahrens 238503ad85cSMatthew Ahrens if (GETMEMBID(addr, &os_id, os_dsl_dataset, os_dsl_dataset)) 239fa9e4066Sahrens return (DCMD_ERR); 240fa9e4066Sahrens 241fa9e4066Sahrens if (os_dsl_dataset == 0) { 242fa9e4066Sahrens strcat(buf, "mos"); 243fa9e4066Sahrens return (0); 244fa9e4066Sahrens } 245fa9e4066Sahrens 246fa9e4066Sahrens if (GETMEMBID(os_dsl_dataset, &ds_id, ds_snapname, ds_snapname) || 247fa9e4066Sahrens GETMEMBID(os_dsl_dataset, &ds_id, ds_dir, ds_dir)) { 248fa9e4066Sahrens return (DCMD_ERR); 249fa9e4066Sahrens } 250fa9e4066Sahrens 251fa9e4066Sahrens if (ds_dir && dataset_name(ds_dir, buf)) 252fa9e4066Sahrens return (DCMD_ERR); 253fa9e4066Sahrens 254fa9e4066Sahrens if (ds_snapname[0]) { 255fa9e4066Sahrens strcat(buf, "@"); 256fa9e4066Sahrens strcat(buf, ds_snapname); 257fa9e4066Sahrens } 258fa9e4066Sahrens return (0); 259fa9e4066Sahrens } 260fa9e4066Sahrens 261fa9e4066Sahrens static void 262fa9e4066Sahrens enum_lookup(char *out, size_t size, mdb_ctf_id_t id, int val, 263fa9e4066Sahrens const char *prefix) 264fa9e4066Sahrens { 265fa9e4066Sahrens const char *cp; 266fa9e4066Sahrens size_t len = strlen(prefix); 267fa9e4066Sahrens 268fa9e4066Sahrens if ((cp = mdb_ctf_enum_name(id, val)) != NULL) { 269fa9e4066Sahrens if (strncmp(cp, prefix, len) == 0) 270fa9e4066Sahrens cp += len; 271fa9e4066Sahrens (void) strncpy(out, cp, size); 272fa9e4066Sahrens } else { 273fa9e4066Sahrens mdb_snprintf(out, size, "? (%d)", val); 274fa9e4066Sahrens } 275fa9e4066Sahrens } 276fa9e4066Sahrens 277fa9e4066Sahrens /* ARGSUSED */ 278fa9e4066Sahrens static int 279614409b5Sahrens zfs_params(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 280614409b5Sahrens { 281614409b5Sahrens /* 282614409b5Sahrens * This table can be approximately generated by running: 283614409b5Sahrens * egrep "^[a-z0-9_]+ [a-z0-9_]+( =.*)?;" *.c | cut -d ' ' -f 2 284614409b5Sahrens */ 285614409b5Sahrens static const char *params[] = { 286614409b5Sahrens "arc_reduce_dnlc_percent", 287614409b5Sahrens "zfs_arc_max", 288614409b5Sahrens "zfs_arc_min", 28949e3519aSmaybee "arc_shrink_shift", 290614409b5Sahrens "zfs_mdcomp_disable", 291614409b5Sahrens "zfs_prefetch_disable", 292614409b5Sahrens "zfetch_max_streams", 293614409b5Sahrens "zfetch_min_sec_reap", 294614409b5Sahrens "zfetch_block_cap", 295614409b5Sahrens "zfetch_array_rd_sz", 296614409b5Sahrens "zfs_default_bs", 297614409b5Sahrens "zfs_default_ibs", 298614409b5Sahrens "metaslab_aliquot", 299614409b5Sahrens "reference_tracking_enable", 300614409b5Sahrens "reference_history", 301614409b5Sahrens "spa_max_replication_override", 302b24ab676SJeff Bonwick "spa_mode_global", 303614409b5Sahrens "zfs_flags", 3041ab7f2deSmaybee "zfs_txg_synctime", 3051ab7f2deSmaybee "zfs_txg_timeout", 3061ab7f2deSmaybee "zfs_write_limit_min", 3071ab7f2deSmaybee "zfs_write_limit_max", 3081ab7f2deSmaybee "zfs_write_limit_shift", 3091ab7f2deSmaybee "zfs_write_limit_override", 3101ab7f2deSmaybee "zfs_no_write_throttle", 311614409b5Sahrens "zfs_vdev_cache_max", 312614409b5Sahrens "zfs_vdev_cache_size", 313614409b5Sahrens "zfs_vdev_cache_bshift", 314614409b5Sahrens "vdev_mirror_shift", 315614409b5Sahrens "zfs_vdev_max_pending", 316614409b5Sahrens "zfs_vdev_min_pending", 317614409b5Sahrens "zfs_scrub_limit", 318b16da2e2SGeorge Wilson "zfs_no_scrub_io", 319b16da2e2SGeorge Wilson "zfs_no_scrub_prefetch", 320614409b5Sahrens "zfs_vdev_time_shift", 321614409b5Sahrens "zfs_vdev_ramp_rate", 322614409b5Sahrens "zfs_vdev_aggregation_limit", 323614409b5Sahrens "fzap_default_block_shift", 324614409b5Sahrens "zfs_immediate_write_sz", 325614409b5Sahrens "zfs_read_chunk_size", 326614409b5Sahrens "zil_disable", 327614409b5Sahrens "zfs_nocacheflush", 3281ab7f2deSmaybee "metaslab_gang_bang", 329d6e555bdSGeorge Wilson "metaslab_df_alloc_threshold", 330d6e555bdSGeorge Wilson "metaslab_df_free_pct", 331614409b5Sahrens "zio_injection_enabled", 332614409b5Sahrens "zvol_immediate_write_sz", 333614409b5Sahrens }; 334614409b5Sahrens 335b24ab676SJeff Bonwick for (int i = 0; i < sizeof (params) / sizeof (params[0]); i++) { 336614409b5Sahrens int sz; 337614409b5Sahrens uint64_t val64; 338614409b5Sahrens uint32_t *val32p = (uint32_t *)&val64; 339614409b5Sahrens 340614409b5Sahrens sz = mdb_readvar(&val64, params[i]); 341614409b5Sahrens if (sz == 4) { 342614409b5Sahrens mdb_printf("%s = 0x%x\n", params[i], *val32p); 343614409b5Sahrens } else if (sz == 8) { 344614409b5Sahrens mdb_printf("%s = 0x%llx\n", params[i], val64); 345614409b5Sahrens } else { 346614409b5Sahrens mdb_warn("variable %s not found", params[i]); 347614409b5Sahrens } 348614409b5Sahrens } 349614409b5Sahrens 350614409b5Sahrens return (DCMD_OK); 351614409b5Sahrens } 352614409b5Sahrens 353614409b5Sahrens /* ARGSUSED */ 354614409b5Sahrens static int 355fa9e4066Sahrens blkptr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 356fa9e4066Sahrens { 357b24ab676SJeff Bonwick mdb_ctf_id_t type_enum, checksum_enum, compress_enum; 358b24ab676SJeff Bonwick char type[80], checksum[80], compress[80]; 359b24ab676SJeff Bonwick blkptr_t blk, *bp = &blk; 360b24ab676SJeff Bonwick char buf[BP_SPRINTF_LEN]; 361fa9e4066Sahrens 362b24ab676SJeff Bonwick if (mdb_vread(&blk, sizeof (blkptr_t), addr) == -1) { 363fa9e4066Sahrens mdb_warn("failed to read blkptr_t"); 364fa9e4066Sahrens return (DCMD_ERR); 365fa9e4066Sahrens } 366fa9e4066Sahrens 367b24ab676SJeff Bonwick if (mdb_ctf_lookup_by_name("enum dmu_object_type", &type_enum) == -1 || 368b24ab676SJeff Bonwick mdb_ctf_lookup_by_name("enum zio_checksum", &checksum_enum) == -1 || 369b24ab676SJeff Bonwick mdb_ctf_lookup_by_name("enum zio_compress", &compress_enum) == -1) { 370b24ab676SJeff Bonwick mdb_warn("Could not find blkptr enumerated types"); 371fa9e4066Sahrens return (DCMD_ERR); 372fa9e4066Sahrens } 373fa9e4066Sahrens 374b24ab676SJeff Bonwick enum_lookup(type, sizeof (type), type_enum, 375b24ab676SJeff Bonwick BP_GET_TYPE(bp), "DMU_OT_"); 376b24ab676SJeff Bonwick enum_lookup(checksum, sizeof (checksum), checksum_enum, 377b24ab676SJeff Bonwick BP_GET_CHECKSUM(bp), "ZIO_CHECKSUM_"); 378b24ab676SJeff Bonwick enum_lookup(compress, sizeof (compress), compress_enum, 379b24ab676SJeff Bonwick BP_GET_COMPRESS(bp), "ZIO_COMPRESS_"); 380fa9e4066Sahrens 381b24ab676SJeff Bonwick SPRINTF_BLKPTR(mdb_snprintf, '\n', buf, bp, type, checksum, compress); 382fa9e4066Sahrens 383b24ab676SJeff Bonwick mdb_printf("%s\n", buf); 384fa9e4066Sahrens 385fa9e4066Sahrens return (DCMD_OK); 386fa9e4066Sahrens } 387fa9e4066Sahrens 388fa9e4066Sahrens /* ARGSUSED */ 389fa9e4066Sahrens static int 390fa9e4066Sahrens dbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 391fa9e4066Sahrens { 392fa9e4066Sahrens mdb_ctf_id_t id; 393fa9e4066Sahrens dmu_buf_t db; 394fa9e4066Sahrens uintptr_t objset; 395fa9e4066Sahrens uint8_t level; 396fa9e4066Sahrens uint64_t blkid; 397fa9e4066Sahrens uint64_t holds; 398fa9e4066Sahrens char objectname[32]; 399fa9e4066Sahrens char blkidname[32]; 400fa9e4066Sahrens char path[MAXNAMELEN]; 401fa9e4066Sahrens 402fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) { 403fa9e4066Sahrens mdb_printf(" addr object lvl blkid holds os\n"); 404fa9e4066Sahrens } 405fa9e4066Sahrens 406fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &id) == -1) { 407fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 408fa9e4066Sahrens return (DCMD_ERR); 409fa9e4066Sahrens } 410fa9e4066Sahrens 411fa9e4066Sahrens if (GETMEMBID(addr, &id, db_objset, objset) || 412fa9e4066Sahrens GETMEMBID(addr, &id, db, db) || 413fa9e4066Sahrens GETMEMBID(addr, &id, db_level, level) || 414fa9e4066Sahrens GETMEMBID(addr, &id, db_blkid, blkid)) { 415fa9e4066Sahrens return (WALK_ERR); 416fa9e4066Sahrens } 417fa9e4066Sahrens 418fa9e4066Sahrens if (getrefcount(addr, &id, "db_holds", &holds)) { 419fa9e4066Sahrens return (WALK_ERR); 420fa9e4066Sahrens } 421fa9e4066Sahrens 422fa9e4066Sahrens if (db.db_object == DMU_META_DNODE_OBJECT) 423fa9e4066Sahrens (void) strcpy(objectname, "mdn"); 424fa9e4066Sahrens else 425fa9e4066Sahrens (void) mdb_snprintf(objectname, sizeof (objectname), "%llx", 426fa9e4066Sahrens (u_longlong_t)db.db_object); 427fa9e4066Sahrens 428fa9e4066Sahrens if (blkid == DB_BONUS_BLKID) 429fa9e4066Sahrens (void) strcpy(blkidname, "bonus"); 430fa9e4066Sahrens else 431fa9e4066Sahrens (void) mdb_snprintf(blkidname, sizeof (blkidname), "%llx", 432fa9e4066Sahrens (u_longlong_t)blkid); 433fa9e4066Sahrens 434fa9e4066Sahrens if (objset_name(objset, path)) { 435fa9e4066Sahrens return (WALK_ERR); 436fa9e4066Sahrens } 437fa9e4066Sahrens 438fa9e4066Sahrens mdb_printf("%p %8s %1u %9s %2llu %s\n", 439fa9e4066Sahrens addr, objectname, level, blkidname, holds, path); 440fa9e4066Sahrens 441fa9e4066Sahrens return (DCMD_OK); 442fa9e4066Sahrens } 443fa9e4066Sahrens 444fa9e4066Sahrens /* ARGSUSED */ 445fa9e4066Sahrens static int 446fa9e4066Sahrens dbuf_stats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 447fa9e4066Sahrens { 448fa9e4066Sahrens #define HISTOSZ 32 449fa9e4066Sahrens uintptr_t dbp; 450fa9e4066Sahrens dmu_buf_impl_t db; 451fa9e4066Sahrens dbuf_hash_table_t ht; 452fa9e4066Sahrens uint64_t bucket, ndbufs; 453fa9e4066Sahrens uint64_t histo[HISTOSZ]; 454fa9e4066Sahrens uint64_t histo2[HISTOSZ]; 455fa9e4066Sahrens int i, maxidx; 456fa9e4066Sahrens 457fa9e4066Sahrens if (mdb_readvar(&ht, "dbuf_hash_table") == -1) { 458fa9e4066Sahrens mdb_warn("failed to read 'dbuf_hash_table'"); 459fa9e4066Sahrens return (DCMD_ERR); 460fa9e4066Sahrens } 461fa9e4066Sahrens 462fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) { 463fa9e4066Sahrens histo[i] = 0; 464fa9e4066Sahrens histo2[i] = 0; 465fa9e4066Sahrens } 466fa9e4066Sahrens 467fa9e4066Sahrens ndbufs = 0; 468fa9e4066Sahrens for (bucket = 0; bucket < ht.hash_table_mask+1; bucket++) { 469fa9e4066Sahrens int len; 470fa9e4066Sahrens 471fa9e4066Sahrens if (mdb_vread(&dbp, sizeof (void *), 472fa9e4066Sahrens (uintptr_t)(ht.hash_table+bucket)) == -1) { 473fa9e4066Sahrens mdb_warn("failed to read hash bucket %u at %p", 474fa9e4066Sahrens bucket, ht.hash_table+bucket); 475fa9e4066Sahrens return (DCMD_ERR); 476fa9e4066Sahrens } 477fa9e4066Sahrens 478fa9e4066Sahrens len = 0; 479fa9e4066Sahrens while (dbp != 0) { 480fa9e4066Sahrens if (mdb_vread(&db, sizeof (dmu_buf_impl_t), 481fa9e4066Sahrens dbp) == -1) { 482fa9e4066Sahrens mdb_warn("failed to read dbuf at %p", dbp); 483fa9e4066Sahrens return (DCMD_ERR); 484fa9e4066Sahrens } 485fa9e4066Sahrens dbp = (uintptr_t)db.db_hash_next; 486fa9e4066Sahrens for (i = MIN(len, HISTOSZ - 1); i >= 0; i--) 487fa9e4066Sahrens histo2[i]++; 488fa9e4066Sahrens len++; 489fa9e4066Sahrens ndbufs++; 490fa9e4066Sahrens } 491fa9e4066Sahrens 492fa9e4066Sahrens if (len >= HISTOSZ) 493fa9e4066Sahrens len = HISTOSZ-1; 494fa9e4066Sahrens histo[len]++; 495fa9e4066Sahrens } 496fa9e4066Sahrens 497fa9e4066Sahrens mdb_printf("hash table has %llu buckets, %llu dbufs " 498fa9e4066Sahrens "(avg %llu buckets/dbuf)\n", 499fa9e4066Sahrens ht.hash_table_mask+1, ndbufs, 500fa9e4066Sahrens (ht.hash_table_mask+1)/ndbufs); 501fa9e4066Sahrens 502fa9e4066Sahrens mdb_printf("\n"); 503fa9e4066Sahrens maxidx = 0; 504fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 505fa9e4066Sahrens if (histo[i] > 0) 506fa9e4066Sahrens maxidx = i; 507fa9e4066Sahrens mdb_printf("hash chain length number of buckets\n"); 508fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 509fa9e4066Sahrens mdb_printf("%u %llu\n", i, histo[i]); 510fa9e4066Sahrens 511fa9e4066Sahrens mdb_printf("\n"); 512fa9e4066Sahrens maxidx = 0; 513fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 514fa9e4066Sahrens if (histo2[i] > 0) 515fa9e4066Sahrens maxidx = i; 516fa9e4066Sahrens mdb_printf("hash chain depth number of dbufs\n"); 517fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 518fa9e4066Sahrens mdb_printf("%u or more %llu %llu%%\n", 519fa9e4066Sahrens i, histo2[i], histo2[i]*100/ndbufs); 520fa9e4066Sahrens 521fa9e4066Sahrens 522fa9e4066Sahrens return (DCMD_OK); 523fa9e4066Sahrens } 524fa9e4066Sahrens 525*3f1f8012SMatthew Ahrens #define CHAIN_END 0xffff 526*3f1f8012SMatthew Ahrens /* 527*3f1f8012SMatthew Ahrens * ::zap_leaf [-v] 528*3f1f8012SMatthew Ahrens * 529*3f1f8012SMatthew Ahrens * Print a zap_leaf_phys_t, assumed to be 16k 530*3f1f8012SMatthew Ahrens */ 531*3f1f8012SMatthew Ahrens /* ARGSUSED */ 532*3f1f8012SMatthew Ahrens static int 533*3f1f8012SMatthew Ahrens zap_leaf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 534*3f1f8012SMatthew Ahrens { 535*3f1f8012SMatthew Ahrens char buf[16*1024]; 536*3f1f8012SMatthew Ahrens int verbose = B_FALSE; 537*3f1f8012SMatthew Ahrens int four = B_FALSE; 538*3f1f8012SMatthew Ahrens zap_leaf_t l; 539*3f1f8012SMatthew Ahrens zap_leaf_phys_t *zlp = (void *)buf; 540*3f1f8012SMatthew Ahrens int i; 541*3f1f8012SMatthew Ahrens 542*3f1f8012SMatthew Ahrens if (mdb_getopts(argc, argv, 543*3f1f8012SMatthew Ahrens 'v', MDB_OPT_SETBITS, TRUE, &verbose, 544*3f1f8012SMatthew Ahrens '4', MDB_OPT_SETBITS, TRUE, &four, 545*3f1f8012SMatthew Ahrens NULL) != argc) 546*3f1f8012SMatthew Ahrens return (DCMD_USAGE); 547*3f1f8012SMatthew Ahrens 548*3f1f8012SMatthew Ahrens l.l_phys = zlp; 549*3f1f8012SMatthew Ahrens l.l_bs = 14; /* assume 16k blocks */ 550*3f1f8012SMatthew Ahrens if (four) 551*3f1f8012SMatthew Ahrens l.l_bs = 12; 552*3f1f8012SMatthew Ahrens 553*3f1f8012SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) { 554*3f1f8012SMatthew Ahrens return (DCMD_USAGE); 555*3f1f8012SMatthew Ahrens } 556*3f1f8012SMatthew Ahrens 557*3f1f8012SMatthew Ahrens if (mdb_vread(buf, sizeof (buf), addr) == -1) { 558*3f1f8012SMatthew Ahrens mdb_warn("failed to read zap_leaf_phys_t at %p", addr); 559*3f1f8012SMatthew Ahrens return (DCMD_ERR); 560*3f1f8012SMatthew Ahrens } 561*3f1f8012SMatthew Ahrens 562*3f1f8012SMatthew Ahrens if (zlp->l_hdr.lh_block_type != ZBT_LEAF || 563*3f1f8012SMatthew Ahrens zlp->l_hdr.lh_magic != ZAP_LEAF_MAGIC) { 564*3f1f8012SMatthew Ahrens mdb_warn("This does not appear to be a zap_leaf_phys_t"); 565*3f1f8012SMatthew Ahrens return (DCMD_ERR); 566*3f1f8012SMatthew Ahrens } 567*3f1f8012SMatthew Ahrens 568*3f1f8012SMatthew Ahrens mdb_printf("zap_leaf_phys_t at %p:\n", addr); 569*3f1f8012SMatthew Ahrens mdb_printf(" lh_prefix_len = %u\n", zlp->l_hdr.lh_prefix_len); 570*3f1f8012SMatthew Ahrens mdb_printf(" lh_prefix = %llx\n", zlp->l_hdr.lh_prefix); 571*3f1f8012SMatthew Ahrens mdb_printf(" lh_nentries = %u\n", zlp->l_hdr.lh_nentries); 572*3f1f8012SMatthew Ahrens mdb_printf(" lh_nfree = %u\n", zlp->l_hdr.lh_nfree, 573*3f1f8012SMatthew Ahrens zlp->l_hdr.lh_nfree * 100 / (ZAP_LEAF_NUMCHUNKS(&l))); 574*3f1f8012SMatthew Ahrens mdb_printf(" lh_freelist = %u\n", zlp->l_hdr.lh_freelist); 575*3f1f8012SMatthew Ahrens mdb_printf(" lh_flags = %x (%s)\n", zlp->l_hdr.lh_flags, 576*3f1f8012SMatthew Ahrens zlp->l_hdr.lh_flags & ZLF_ENTRIES_CDSORTED ? 577*3f1f8012SMatthew Ahrens "ENTRIES_CDSORTED" : ""); 578*3f1f8012SMatthew Ahrens 579*3f1f8012SMatthew Ahrens if (verbose) { 580*3f1f8012SMatthew Ahrens mdb_printf(" hash table:\n"); 581*3f1f8012SMatthew Ahrens for (i = 0; i < ZAP_LEAF_HASH_NUMENTRIES(&l); i++) { 582*3f1f8012SMatthew Ahrens if (zlp->l_hash[i] != CHAIN_END) 583*3f1f8012SMatthew Ahrens mdb_printf(" %u: %u\n", i, zlp->l_hash[i]); 584*3f1f8012SMatthew Ahrens } 585*3f1f8012SMatthew Ahrens } 586*3f1f8012SMatthew Ahrens 587*3f1f8012SMatthew Ahrens mdb_printf(" chunks:\n"); 588*3f1f8012SMatthew Ahrens for (i = 0; i < ZAP_LEAF_NUMCHUNKS(&l); i++) { 589*3f1f8012SMatthew Ahrens /* LINTED: alignment */ 590*3f1f8012SMatthew Ahrens zap_leaf_chunk_t *zlc = &ZAP_LEAF_CHUNK(&l, i); 591*3f1f8012SMatthew Ahrens switch (zlc->l_entry.le_type) { 592*3f1f8012SMatthew Ahrens case ZAP_CHUNK_FREE: 593*3f1f8012SMatthew Ahrens if (verbose) { 594*3f1f8012SMatthew Ahrens mdb_printf(" %u: free; lf_next = %u\n", 595*3f1f8012SMatthew Ahrens i, zlc->l_free.lf_next); 596*3f1f8012SMatthew Ahrens } 597*3f1f8012SMatthew Ahrens break; 598*3f1f8012SMatthew Ahrens case ZAP_CHUNK_ENTRY: 599*3f1f8012SMatthew Ahrens mdb_printf(" %u: entry\n", i); 600*3f1f8012SMatthew Ahrens if (verbose) { 601*3f1f8012SMatthew Ahrens mdb_printf(" le_next = %u\n", 602*3f1f8012SMatthew Ahrens zlc->l_entry.le_next); 603*3f1f8012SMatthew Ahrens } 604*3f1f8012SMatthew Ahrens mdb_printf(" le_name_chunk = %u\n", 605*3f1f8012SMatthew Ahrens zlc->l_entry.le_name_chunk); 606*3f1f8012SMatthew Ahrens mdb_printf(" le_name_numints = %u\n", 607*3f1f8012SMatthew Ahrens zlc->l_entry.le_name_numints); 608*3f1f8012SMatthew Ahrens mdb_printf(" le_value_chunk = %u\n", 609*3f1f8012SMatthew Ahrens zlc->l_entry.le_value_chunk); 610*3f1f8012SMatthew Ahrens mdb_printf(" le_value_intlen = %u\n", 611*3f1f8012SMatthew Ahrens zlc->l_entry.le_value_intlen); 612*3f1f8012SMatthew Ahrens mdb_printf(" le_value_numints = %u\n", 613*3f1f8012SMatthew Ahrens zlc->l_entry.le_value_numints); 614*3f1f8012SMatthew Ahrens mdb_printf(" le_cd = %u\n", 615*3f1f8012SMatthew Ahrens zlc->l_entry.le_cd); 616*3f1f8012SMatthew Ahrens mdb_printf(" le_hash = %llx\n", 617*3f1f8012SMatthew Ahrens zlc->l_entry.le_hash); 618*3f1f8012SMatthew Ahrens break; 619*3f1f8012SMatthew Ahrens case ZAP_CHUNK_ARRAY: 620*3f1f8012SMatthew Ahrens mdb_printf(" %u: array \"%s\"\n", 621*3f1f8012SMatthew Ahrens i, zlc->l_array.la_array); 622*3f1f8012SMatthew Ahrens if (verbose) { 623*3f1f8012SMatthew Ahrens int j; 624*3f1f8012SMatthew Ahrens mdb_printf(" "); 625*3f1f8012SMatthew Ahrens for (j = 0; j < ZAP_LEAF_ARRAY_BYTES; j++) { 626*3f1f8012SMatthew Ahrens mdb_printf("%02x ", 627*3f1f8012SMatthew Ahrens zlc->l_array.la_array[j]); 628*3f1f8012SMatthew Ahrens } 629*3f1f8012SMatthew Ahrens mdb_printf("\n"); 630*3f1f8012SMatthew Ahrens } 631*3f1f8012SMatthew Ahrens if (zlc->l_array.la_next != CHAIN_END) { 632*3f1f8012SMatthew Ahrens mdb_printf(" lf_next = %u\n", 633*3f1f8012SMatthew Ahrens zlc->l_array.la_next); 634*3f1f8012SMatthew Ahrens } 635*3f1f8012SMatthew Ahrens break; 636*3f1f8012SMatthew Ahrens default: 637*3f1f8012SMatthew Ahrens mdb_printf(" %u: undefined type %u\n", 638*3f1f8012SMatthew Ahrens zlc->l_entry.le_type); 639*3f1f8012SMatthew Ahrens } 640*3f1f8012SMatthew Ahrens } 641*3f1f8012SMatthew Ahrens 642*3f1f8012SMatthew Ahrens return (DCMD_OK); 643*3f1f8012SMatthew Ahrens } 644*3f1f8012SMatthew Ahrens 645fa9e4066Sahrens typedef struct dbufs_data { 646fa9e4066Sahrens mdb_ctf_id_t id; 647fa9e4066Sahrens uint64_t objset; 648fa9e4066Sahrens uint64_t object; 649fa9e4066Sahrens uint64_t level; 650fa9e4066Sahrens uint64_t blkid; 651fa9e4066Sahrens char *osname; 652fa9e4066Sahrens } dbufs_data_t; 653fa9e4066Sahrens 654fa9e4066Sahrens #define DBUFS_UNSET (0xbaddcafedeadbeefULL) 655fa9e4066Sahrens 656fa9e4066Sahrens /* ARGSUSED */ 657fa9e4066Sahrens static int 658fa9e4066Sahrens dbufs_cb(uintptr_t addr, const void *unknown, void *arg) 659fa9e4066Sahrens { 660fa9e4066Sahrens dbufs_data_t *data = arg; 661fa9e4066Sahrens uintptr_t objset; 662fa9e4066Sahrens dmu_buf_t db; 663fa9e4066Sahrens uint8_t level; 664fa9e4066Sahrens uint64_t blkid; 665fa9e4066Sahrens char osname[MAXNAMELEN]; 666fa9e4066Sahrens 667fa9e4066Sahrens if (GETMEMBID(addr, &data->id, db_objset, objset) || 668fa9e4066Sahrens GETMEMBID(addr, &data->id, db, db) || 669fa9e4066Sahrens GETMEMBID(addr, &data->id, db_level, level) || 670fa9e4066Sahrens GETMEMBID(addr, &data->id, db_blkid, blkid)) { 671fa9e4066Sahrens return (WALK_ERR); 672fa9e4066Sahrens } 673fa9e4066Sahrens 674fa9e4066Sahrens if ((data->objset == DBUFS_UNSET || data->objset == objset) && 675fa9e4066Sahrens (data->osname == NULL || (objset_name(objset, osname) == 0 && 676fa9e4066Sahrens strcmp(data->osname, osname) == 0)) && 677fa9e4066Sahrens (data->object == DBUFS_UNSET || data->object == db.db_object) && 678fa9e4066Sahrens (data->level == DBUFS_UNSET || data->level == level) && 679fa9e4066Sahrens (data->blkid == DBUFS_UNSET || data->blkid == blkid)) { 680fa9e4066Sahrens mdb_printf("%#lr\n", addr); 681fa9e4066Sahrens } 682fa9e4066Sahrens return (WALK_NEXT); 683fa9e4066Sahrens } 684fa9e4066Sahrens 685fa9e4066Sahrens /* ARGSUSED */ 686fa9e4066Sahrens static int 687fa9e4066Sahrens dbufs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 688fa9e4066Sahrens { 689fa9e4066Sahrens dbufs_data_t data; 690fa9e4066Sahrens char *object = NULL; 691fa9e4066Sahrens char *blkid = NULL; 692fa9e4066Sahrens 693fa9e4066Sahrens data.objset = data.object = data.level = data.blkid = DBUFS_UNSET; 694fa9e4066Sahrens data.osname = NULL; 695fa9e4066Sahrens 696fa9e4066Sahrens if (mdb_getopts(argc, argv, 697fa9e4066Sahrens 'O', MDB_OPT_UINT64, &data.objset, 698fa9e4066Sahrens 'n', MDB_OPT_STR, &data.osname, 699fa9e4066Sahrens 'o', MDB_OPT_STR, &object, 700fa9e4066Sahrens 'l', MDB_OPT_UINT64, &data.level, 701fa9e4066Sahrens 'b', MDB_OPT_STR, &blkid) != argc) { 702fa9e4066Sahrens return (DCMD_USAGE); 703fa9e4066Sahrens } 704fa9e4066Sahrens 705fa9e4066Sahrens if (object) { 706fa9e4066Sahrens if (strcmp(object, "mdn") == 0) { 707fa9e4066Sahrens data.object = DMU_META_DNODE_OBJECT; 708fa9e4066Sahrens } else { 709fa9e4066Sahrens data.object = mdb_strtoull(object); 710fa9e4066Sahrens } 711fa9e4066Sahrens } 712fa9e4066Sahrens 713fa9e4066Sahrens if (blkid) { 714fa9e4066Sahrens if (strcmp(blkid, "bonus") == 0) { 715fa9e4066Sahrens data.blkid = DB_BONUS_BLKID; 716fa9e4066Sahrens } else { 717fa9e4066Sahrens data.blkid = mdb_strtoull(blkid); 718fa9e4066Sahrens } 719fa9e4066Sahrens } 720fa9e4066Sahrens 721fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &data.id) == -1) { 722fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 723fa9e4066Sahrens return (DCMD_ERR); 724fa9e4066Sahrens } 725fa9e4066Sahrens 7265f5f7a6fSahrens if (mdb_walk("dmu_buf_impl_t", dbufs_cb, &data) != 0) { 727fa9e4066Sahrens mdb_warn("can't walk dbufs"); 728fa9e4066Sahrens return (DCMD_ERR); 729fa9e4066Sahrens } 730fa9e4066Sahrens 731fa9e4066Sahrens return (DCMD_OK); 732fa9e4066Sahrens } 733fa9e4066Sahrens 734fa9e4066Sahrens typedef struct abuf_find_data { 735fa9e4066Sahrens dva_t dva; 736fa9e4066Sahrens mdb_ctf_id_t id; 737fa9e4066Sahrens } abuf_find_data_t; 738fa9e4066Sahrens 739fa9e4066Sahrens /* ARGSUSED */ 740fa9e4066Sahrens static int 741fa9e4066Sahrens abuf_find_cb(uintptr_t addr, const void *unknown, void *arg) 742fa9e4066Sahrens { 743fa9e4066Sahrens abuf_find_data_t *data = arg; 744fa9e4066Sahrens dva_t dva; 745fa9e4066Sahrens 746fa9e4066Sahrens if (GETMEMBID(addr, &data->id, b_dva, dva)) { 747fa9e4066Sahrens return (WALK_ERR); 748fa9e4066Sahrens } 749fa9e4066Sahrens 750fa9e4066Sahrens if (dva.dva_word[0] == data->dva.dva_word[0] && 751fa9e4066Sahrens dva.dva_word[1] == data->dva.dva_word[1]) { 752fa9e4066Sahrens mdb_printf("%#lr\n", addr); 753fa9e4066Sahrens } 754fa9e4066Sahrens return (WALK_NEXT); 755fa9e4066Sahrens } 756fa9e4066Sahrens 757fa9e4066Sahrens /* ARGSUSED */ 758fa9e4066Sahrens static int 759fa9e4066Sahrens abuf_find(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 760fa9e4066Sahrens { 761fa9e4066Sahrens abuf_find_data_t data; 762fa9e4066Sahrens GElf_Sym sym; 763fa9e4066Sahrens int i; 764fa9e4066Sahrens const char *syms[] = { 765a2eea2e1Sahrens "ARC_mru", 766a2eea2e1Sahrens "ARC_mru_ghost", 767a2eea2e1Sahrens "ARC_mfu", 768a2eea2e1Sahrens "ARC_mfu_ghost", 769fa9e4066Sahrens }; 770fa9e4066Sahrens 771fa9e4066Sahrens if (argc != 2) 772fa9e4066Sahrens return (DCMD_USAGE); 773fa9e4066Sahrens 774fa9e4066Sahrens for (i = 0; i < 2; i ++) { 775fa9e4066Sahrens switch (argv[i].a_type) { 776fa9e4066Sahrens case MDB_TYPE_STRING: 777fa9e4066Sahrens data.dva.dva_word[i] = mdb_strtoull(argv[i].a_un.a_str); 778fa9e4066Sahrens break; 779fa9e4066Sahrens case MDB_TYPE_IMMEDIATE: 780fa9e4066Sahrens data.dva.dva_word[i] = argv[i].a_un.a_val; 781fa9e4066Sahrens break; 782fa9e4066Sahrens default: 783fa9e4066Sahrens return (DCMD_USAGE); 784fa9e4066Sahrens } 785fa9e4066Sahrens } 786fa9e4066Sahrens 787fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct arc_buf_hdr", &data.id) == -1) { 788fa9e4066Sahrens mdb_warn("couldn't find struct arc_buf_hdr"); 789fa9e4066Sahrens return (DCMD_ERR); 790fa9e4066Sahrens } 791fa9e4066Sahrens 792fa9e4066Sahrens for (i = 0; i < sizeof (syms) / sizeof (syms[0]); i++) { 793fa9e4066Sahrens if (mdb_lookup_by_name(syms[i], &sym)) { 794fa9e4066Sahrens mdb_warn("can't find symbol %s", syms[i]); 795fa9e4066Sahrens return (DCMD_ERR); 796fa9e4066Sahrens } 797fa9e4066Sahrens 798fa9e4066Sahrens if (mdb_pwalk("list", abuf_find_cb, &data, sym.st_value) != 0) { 799fa9e4066Sahrens mdb_warn("can't walk %s", syms[i]); 800fa9e4066Sahrens return (DCMD_ERR); 801fa9e4066Sahrens } 802fa9e4066Sahrens } 803fa9e4066Sahrens 804fa9e4066Sahrens return (DCMD_OK); 805fa9e4066Sahrens } 806fa9e4066Sahrens 80744cb6abcSbmc /*ARGSUSED*/ 80844cb6abcSbmc static int 80944cb6abcSbmc arc_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 81044cb6abcSbmc { 81144cb6abcSbmc kstat_named_t *stats; 81244cb6abcSbmc GElf_Sym sym; 81391ebeef5Sahrens int nstats, i; 81444cb6abcSbmc uint_t opt_a = FALSE; 81591ebeef5Sahrens uint_t opt_b = FALSE; 81691ebeef5Sahrens uint_t shift = 0; 81791ebeef5Sahrens const char *suffix; 81844cb6abcSbmc 81991ebeef5Sahrens static const char *bytestats[] = { 82091ebeef5Sahrens "p", "c", "c_min", "c_max", "size", NULL 82191ebeef5Sahrens }; 82291ebeef5Sahrens 82391ebeef5Sahrens static const char *extras[] = { 82491ebeef5Sahrens "arc_no_grow", "arc_tempreserve", 82591ebeef5Sahrens "arc_meta_used", "arc_meta_limit", "arc_meta_max", 82691ebeef5Sahrens NULL 82744cb6abcSbmc }; 82844cb6abcSbmc 82944cb6abcSbmc if (mdb_lookup_by_name("arc_stats", &sym) == -1) { 83044cb6abcSbmc mdb_warn("failed to find 'arc_stats'"); 83144cb6abcSbmc return (DCMD_ERR); 83244cb6abcSbmc } 83344cb6abcSbmc 83444cb6abcSbmc stats = mdb_zalloc(sym.st_size, UM_SLEEP | UM_GC); 83544cb6abcSbmc 83644cb6abcSbmc if (mdb_vread(stats, sym.st_size, sym.st_value) == -1) { 83744cb6abcSbmc mdb_warn("couldn't read 'arc_stats' at %p", sym.st_value); 83844cb6abcSbmc return (DCMD_ERR); 83944cb6abcSbmc } 84044cb6abcSbmc 84144cb6abcSbmc nstats = sym.st_size / sizeof (kstat_named_t); 84244cb6abcSbmc 84391ebeef5Sahrens /* NB: -a / opt_a are ignored for backwards compatability */ 84491ebeef5Sahrens if (mdb_getopts(argc, argv, 84591ebeef5Sahrens 'a', MDB_OPT_SETBITS, TRUE, &opt_a, 84691ebeef5Sahrens 'b', MDB_OPT_SETBITS, TRUE, &opt_b, 84791ebeef5Sahrens 'k', MDB_OPT_SETBITS, 10, &shift, 84891ebeef5Sahrens 'm', MDB_OPT_SETBITS, 20, &shift, 84991ebeef5Sahrens 'g', MDB_OPT_SETBITS, 30, &shift, 85091ebeef5Sahrens NULL) != argc) 85144cb6abcSbmc return (DCMD_USAGE); 85244cb6abcSbmc 85391ebeef5Sahrens if (!opt_b && !shift) 85491ebeef5Sahrens shift = 20; 85544cb6abcSbmc 85691ebeef5Sahrens switch (shift) { 85791ebeef5Sahrens case 0: 85891ebeef5Sahrens suffix = "B"; 85991ebeef5Sahrens break; 86091ebeef5Sahrens case 10: 86191ebeef5Sahrens suffix = "KB"; 86291ebeef5Sahrens break; 86391ebeef5Sahrens case 20: 86491ebeef5Sahrens suffix = "MB"; 86591ebeef5Sahrens break; 86691ebeef5Sahrens case 30: 86791ebeef5Sahrens suffix = "GB"; 86891ebeef5Sahrens break; 86991ebeef5Sahrens default: 87091ebeef5Sahrens suffix = "XX"; 87191ebeef5Sahrens } 87291ebeef5Sahrens 87344cb6abcSbmc for (i = 0; i < nstats; i++) { 87491ebeef5Sahrens int j; 87591ebeef5Sahrens boolean_t bytes = B_FALSE; 87691ebeef5Sahrens 87791ebeef5Sahrens for (j = 0; bytestats[j]; j++) { 87891ebeef5Sahrens if (strcmp(stats[i].name, bytestats[j]) == 0) { 87991ebeef5Sahrens bytes = B_TRUE; 88091ebeef5Sahrens break; 88191ebeef5Sahrens } 88291ebeef5Sahrens } 88391ebeef5Sahrens 88491ebeef5Sahrens if (bytes) { 88591ebeef5Sahrens mdb_printf("%-25s = %9llu %s\n", stats[i].name, 88691ebeef5Sahrens stats[i].value.ui64 >> shift, suffix); 88791ebeef5Sahrens } else { 88891ebeef5Sahrens mdb_printf("%-25s = %9llu\n", stats[i].name, 88944cb6abcSbmc stats[i].value.ui64); 89044cb6abcSbmc } 89144cb6abcSbmc } 89244cb6abcSbmc 89391ebeef5Sahrens for (i = 0; extras[i]; i++) { 89444cb6abcSbmc uint64_t buf; 89544cb6abcSbmc 89691ebeef5Sahrens if (mdb_lookup_by_name(extras[i], &sym) == -1) { 89791ebeef5Sahrens mdb_warn("failed to find '%s'", extras[i]); 89844cb6abcSbmc return (DCMD_ERR); 89944cb6abcSbmc } 90044cb6abcSbmc 90144cb6abcSbmc if (sym.st_size != sizeof (uint64_t) && 90244cb6abcSbmc sym.st_size != sizeof (uint32_t)) { 90391ebeef5Sahrens mdb_warn("expected scalar for variable '%s'\n", 90491ebeef5Sahrens extras[i]); 90544cb6abcSbmc return (DCMD_ERR); 90644cb6abcSbmc } 90744cb6abcSbmc 90844cb6abcSbmc if (mdb_vread(&buf, sym.st_size, sym.st_value) == -1) { 90991ebeef5Sahrens mdb_warn("couldn't read '%s'", extras[i]); 91044cb6abcSbmc return (DCMD_ERR); 91144cb6abcSbmc } 91244cb6abcSbmc 91391ebeef5Sahrens mdb_printf("%-25s = ", extras[i]); 91444cb6abcSbmc 91591ebeef5Sahrens /* NB: all the 64-bit extras happen to be byte counts */ 91644cb6abcSbmc if (sym.st_size == sizeof (uint64_t)) 91791ebeef5Sahrens mdb_printf("%9llu %s\n", buf >> shift, suffix); 91844cb6abcSbmc 91944cb6abcSbmc if (sym.st_size == sizeof (uint32_t)) 92091ebeef5Sahrens mdb_printf("%9d\n", *((uint32_t *)&buf)); 92144cb6abcSbmc } 92244cb6abcSbmc return (DCMD_OK); 92344cb6abcSbmc } 92444cb6abcSbmc 925fa9e4066Sahrens /* 926fa9e4066Sahrens * ::spa 927fa9e4066Sahrens * 928fa9e4066Sahrens * -c Print configuration information as well 929fa9e4066Sahrens * -v Print vdev state 930fa9e4066Sahrens * -e Print vdev error stats 931fa9e4066Sahrens * 932fa9e4066Sahrens * Print a summarized spa_t. When given no arguments, prints out a table of all 933fa9e4066Sahrens * active pools on the system. 934fa9e4066Sahrens */ 935fa9e4066Sahrens /* ARGSUSED */ 936fa9e4066Sahrens static int 937fa9e4066Sahrens spa_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 938fa9e4066Sahrens { 939fa9e4066Sahrens spa_t spa; 940fa9e4066Sahrens const char *statetab[] = { "ACTIVE", "EXPORTED", "DESTROYED", 941e14bb325SJeff Bonwick "SPARE", "L2CACHE", "UNINIT", "UNAVAIL", "POTENTIAL" }; 942fa9e4066Sahrens const char *state; 943fa9e4066Sahrens int config = FALSE; 944fa9e4066Sahrens int vdevs = FALSE; 945fa9e4066Sahrens int errors = FALSE; 946fa9e4066Sahrens 947fa9e4066Sahrens if (mdb_getopts(argc, argv, 948fa9e4066Sahrens 'c', MDB_OPT_SETBITS, TRUE, &config, 949fa9e4066Sahrens 'v', MDB_OPT_SETBITS, TRUE, &vdevs, 950fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 951fa9e4066Sahrens NULL) != argc) 952fa9e4066Sahrens return (DCMD_USAGE); 953fa9e4066Sahrens 954fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 955fa9e4066Sahrens if (mdb_walk_dcmd("spa", "spa", argc, argv) == -1) { 956fa9e4066Sahrens mdb_warn("can't walk spa"); 957fa9e4066Sahrens return (DCMD_ERR); 958fa9e4066Sahrens } 959fa9e4066Sahrens 960fa9e4066Sahrens return (DCMD_OK); 961fa9e4066Sahrens } 962fa9e4066Sahrens 963fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 964fa9e4066Sahrens mdb_printf("%#lr\n", addr); 965fa9e4066Sahrens return (DCMD_OK); 966fa9e4066Sahrens } 967fa9e4066Sahrens 968fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) 969fa9e4066Sahrens mdb_printf("%<u>%-?s %9s %-*s%</u>\n", "ADDR", "STATE", 970fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 60 : 52, "NAME"); 971fa9e4066Sahrens 972fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 973fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 974fa9e4066Sahrens return (DCMD_ERR); 975fa9e4066Sahrens } 976fa9e4066Sahrens 977fa9e4066Sahrens if (spa.spa_state < 0 || spa.spa_state > POOL_STATE_UNAVAIL) 978ea8dc4b6Seschrock state = "UNKNOWN"; 979fa9e4066Sahrens else 980fa9e4066Sahrens state = statetab[spa.spa_state]; 981fa9e4066Sahrens 982e14bb325SJeff Bonwick mdb_printf("%0?p %9s %s\n", addr, state, spa.spa_name); 983fa9e4066Sahrens 984fa9e4066Sahrens if (config) { 985fa9e4066Sahrens mdb_printf("\n"); 986fa9e4066Sahrens mdb_inc_indent(4); 987fa9e4066Sahrens if (mdb_call_dcmd("spa_config", addr, flags, 0, 988fa9e4066Sahrens NULL) != DCMD_OK) 989fa9e4066Sahrens return (DCMD_ERR); 990fa9e4066Sahrens mdb_dec_indent(4); 991fa9e4066Sahrens } 992fa9e4066Sahrens 993fa9e4066Sahrens if (vdevs || errors) { 994fa9e4066Sahrens mdb_arg_t v; 995fa9e4066Sahrens 996fa9e4066Sahrens v.a_type = MDB_TYPE_STRING; 997fa9e4066Sahrens v.a_un.a_str = "-e"; 998fa9e4066Sahrens 999fa9e4066Sahrens mdb_printf("\n"); 1000fa9e4066Sahrens mdb_inc_indent(4); 1001fa9e4066Sahrens if (mdb_call_dcmd("spa_vdevs", addr, flags, errors ? 1 : 0, 1002fa9e4066Sahrens &v) != DCMD_OK) 1003fa9e4066Sahrens return (DCMD_ERR); 1004fa9e4066Sahrens mdb_dec_indent(4); 1005fa9e4066Sahrens } 1006fa9e4066Sahrens 1007fa9e4066Sahrens return (DCMD_OK); 1008fa9e4066Sahrens } 1009fa9e4066Sahrens 1010fa9e4066Sahrens /* 1011fa9e4066Sahrens * ::spa_config 1012fa9e4066Sahrens * 1013fa9e4066Sahrens * Given a spa_t, print the configuration information stored in spa_config. 1014fa9e4066Sahrens * Since it's just an nvlist, format it as an indented list of name=value pairs. 1015fa9e4066Sahrens * We simply read the value of spa_config and pass off to ::nvlist. 1016fa9e4066Sahrens */ 1017fa9e4066Sahrens /* ARGSUSED */ 1018fa9e4066Sahrens static int 1019fa9e4066Sahrens spa_print_config(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1020fa9e4066Sahrens { 1021fa9e4066Sahrens spa_t spa; 1022fa9e4066Sahrens 1023fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1024fa9e4066Sahrens return (DCMD_USAGE); 1025fa9e4066Sahrens 1026fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1027fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1028fa9e4066Sahrens return (DCMD_ERR); 1029fa9e4066Sahrens } 1030fa9e4066Sahrens 1031fa9e4066Sahrens if (spa.spa_config == NULL) { 1032fa9e4066Sahrens mdb_printf("(none)\n"); 1033fa9e4066Sahrens return (DCMD_OK); 1034fa9e4066Sahrens } 1035fa9e4066Sahrens 1036fa9e4066Sahrens return (mdb_call_dcmd("nvlist", (uintptr_t)spa.spa_config, flags, 1037fa9e4066Sahrens 0, NULL)); 1038fa9e4066Sahrens } 1039fa9e4066Sahrens 1040fa9e4066Sahrens /* 1041fa9e4066Sahrens * ::vdev 1042fa9e4066Sahrens * 1043fa9e4066Sahrens * Print out a summarized vdev_t, in the following form: 1044fa9e4066Sahrens * 1045fa9e4066Sahrens * ADDR STATE AUX DESC 1046fa9e4066Sahrens * fffffffbcde23df0 HEALTHY - /dev/dsk/c0t0d0 1047fa9e4066Sahrens * 1048fa9e4066Sahrens * If '-r' is specified, recursively visit all children. 1049fa9e4066Sahrens * 1050fa9e4066Sahrens * With '-e', the statistics associated with the vdev are printed as well. 1051fa9e4066Sahrens */ 1052fa9e4066Sahrens static int 1053614409b5Sahrens do_print_vdev(uintptr_t addr, int flags, int depth, int stats, 1054fa9e4066Sahrens int recursive) 1055fa9e4066Sahrens { 1056fa9e4066Sahrens vdev_t vdev; 1057fa9e4066Sahrens char desc[MAXNAMELEN]; 1058fa9e4066Sahrens int c, children; 1059fa9e4066Sahrens uintptr_t *child; 1060fa9e4066Sahrens const char *state, *aux; 1061fa9e4066Sahrens 1062fa9e4066Sahrens if (mdb_vread(&vdev, sizeof (vdev), (uintptr_t)addr) == -1) { 1063fa9e4066Sahrens mdb_warn("failed to read vdev_t at %p\n", (uintptr_t)addr); 1064fa9e4066Sahrens return (DCMD_ERR); 1065fa9e4066Sahrens } 1066fa9e4066Sahrens 1067fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 1068fa9e4066Sahrens mdb_printf("%#lr", addr); 1069fa9e4066Sahrens } else { 1070fa9e4066Sahrens if (vdev.vdev_path != NULL) { 1071fa9e4066Sahrens if (mdb_readstr(desc, sizeof (desc), 1072fa9e4066Sahrens (uintptr_t)vdev.vdev_path) == -1) { 1073fa9e4066Sahrens mdb_warn("failed to read vdev_path at %p\n", 1074fa9e4066Sahrens vdev.vdev_path); 1075fa9e4066Sahrens return (DCMD_ERR); 1076fa9e4066Sahrens } 1077fa9e4066Sahrens } else if (vdev.vdev_ops != NULL) { 1078fa9e4066Sahrens vdev_ops_t ops; 1079fa9e4066Sahrens if (mdb_vread(&ops, sizeof (ops), 1080fa9e4066Sahrens (uintptr_t)vdev.vdev_ops) == -1) { 1081fa9e4066Sahrens mdb_warn("failed to read vdev_ops at %p\n", 1082fa9e4066Sahrens vdev.vdev_ops); 1083fa9e4066Sahrens return (DCMD_ERR); 1084fa9e4066Sahrens } 1085fa9e4066Sahrens (void) strcpy(desc, ops.vdev_op_type); 1086fa9e4066Sahrens } else { 1087fa9e4066Sahrens (void) strcpy(desc, "<unknown>"); 1088fa9e4066Sahrens } 1089fa9e4066Sahrens 1090fa9e4066Sahrens if (depth == 0 && DCMD_HDRSPEC(flags)) 1091fa9e4066Sahrens mdb_printf("%<u>%-?s %-9s %-12s %-*s%</u>\n", 1092fa9e4066Sahrens "ADDR", "STATE", "AUX", 1093fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 43 : 35, 1094fa9e4066Sahrens "DESCRIPTION"); 1095fa9e4066Sahrens 1096fa9e4066Sahrens mdb_printf("%0?p ", addr); 1097fa9e4066Sahrens 1098fa9e4066Sahrens switch (vdev.vdev_state) { 1099fa9e4066Sahrens case VDEV_STATE_CLOSED: 1100fa9e4066Sahrens state = "CLOSED"; 1101fa9e4066Sahrens break; 1102fa9e4066Sahrens case VDEV_STATE_OFFLINE: 1103fa9e4066Sahrens state = "OFFLINE"; 1104fa9e4066Sahrens break; 1105fa9e4066Sahrens case VDEV_STATE_CANT_OPEN: 1106fa9e4066Sahrens state = "CANT_OPEN"; 1107fa9e4066Sahrens break; 1108fa9e4066Sahrens case VDEV_STATE_DEGRADED: 1109fa9e4066Sahrens state = "DEGRADED"; 1110fa9e4066Sahrens break; 1111fa9e4066Sahrens case VDEV_STATE_HEALTHY: 1112fa9e4066Sahrens state = "HEALTHY"; 1113fa9e4066Sahrens break; 11143d7072f8Seschrock case VDEV_STATE_REMOVED: 11153d7072f8Seschrock state = "REMOVED"; 11163d7072f8Seschrock break; 11173d7072f8Seschrock case VDEV_STATE_FAULTED: 11183d7072f8Seschrock state = "FAULTED"; 11193d7072f8Seschrock break; 1120fa9e4066Sahrens default: 1121fa9e4066Sahrens state = "UNKNOWN"; 1122fa9e4066Sahrens break; 1123fa9e4066Sahrens } 1124fa9e4066Sahrens 1125fa9e4066Sahrens switch (vdev.vdev_stat.vs_aux) { 1126fa9e4066Sahrens case VDEV_AUX_NONE: 1127fa9e4066Sahrens aux = "-"; 1128fa9e4066Sahrens break; 1129fa9e4066Sahrens case VDEV_AUX_OPEN_FAILED: 1130fa9e4066Sahrens aux = "OPEN_FAILED"; 1131fa9e4066Sahrens break; 1132fa9e4066Sahrens case VDEV_AUX_CORRUPT_DATA: 1133fa9e4066Sahrens aux = "CORRUPT_DATA"; 1134fa9e4066Sahrens break; 1135fa9e4066Sahrens case VDEV_AUX_NO_REPLICAS: 1136fa9e4066Sahrens aux = "NO_REPLICAS"; 1137fa9e4066Sahrens break; 1138fa9e4066Sahrens case VDEV_AUX_BAD_GUID_SUM: 1139fa9e4066Sahrens aux = "BAD_GUID_SUM"; 1140fa9e4066Sahrens break; 1141fa9e4066Sahrens case VDEV_AUX_TOO_SMALL: 1142fa9e4066Sahrens aux = "TOO_SMALL"; 1143fa9e4066Sahrens break; 1144fa9e4066Sahrens case VDEV_AUX_BAD_LABEL: 1145fa9e4066Sahrens aux = "BAD_LABEL"; 1146fa9e4066Sahrens break; 1147b87f3af3Sperrin case VDEV_AUX_VERSION_NEWER: 1148b87f3af3Sperrin aux = "VERS_NEWER"; 1149b87f3af3Sperrin break; 1150b87f3af3Sperrin case VDEV_AUX_VERSION_OLDER: 1151b87f3af3Sperrin aux = "VERS_OLDER"; 1152b87f3af3Sperrin break; 1153b87f3af3Sperrin case VDEV_AUX_SPARED: 1154b87f3af3Sperrin aux = "SPARED"; 1155b87f3af3Sperrin break; 1156b87f3af3Sperrin case VDEV_AUX_ERR_EXCEEDED: 1157b87f3af3Sperrin aux = "ERR_EXCEEDED"; 1158b87f3af3Sperrin break; 1159b87f3af3Sperrin case VDEV_AUX_IO_FAILURE: 1160b87f3af3Sperrin aux = "IO_FAILURE"; 1161b87f3af3Sperrin break; 1162b87f3af3Sperrin case VDEV_AUX_BAD_LOG: 1163b87f3af3Sperrin aux = "BAD_LOG"; 1164b87f3af3Sperrin break; 11651195e687SMark J Musante case VDEV_AUX_EXTERNAL: 11661195e687SMark J Musante aux = "EXTERNAL"; 11671195e687SMark J Musante break; 11681195e687SMark J Musante case VDEV_AUX_SPLIT_POOL: 11691195e687SMark J Musante aux = "SPLIT_POOL"; 11701195e687SMark J Musante break; 1171fa9e4066Sahrens default: 1172fa9e4066Sahrens aux = "UNKNOWN"; 1173fa9e4066Sahrens break; 1174fa9e4066Sahrens } 1175fa9e4066Sahrens 1176fa9e4066Sahrens mdb_printf("%-9s %-12s %*s%s\n", state, aux, depth, "", desc); 1177fa9e4066Sahrens 1178fa9e4066Sahrens if (stats) { 1179fa9e4066Sahrens vdev_stat_t *vs = &vdev.vdev_stat; 1180fa9e4066Sahrens int i; 1181fa9e4066Sahrens 1182fa9e4066Sahrens mdb_inc_indent(4); 1183fa9e4066Sahrens mdb_printf("\n"); 1184fa9e4066Sahrens mdb_printf("%<u> %12s %12s %12s %12s " 1185fa9e4066Sahrens "%12s%</u>\n", "READ", "WRITE", "FREE", "CLAIM", 1186fa9e4066Sahrens "IOCTL"); 1187fa9e4066Sahrens mdb_printf("OPS "); 1188fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1189fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_ops[i], 1190fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1191fa9e4066Sahrens mdb_printf("\n"); 1192fa9e4066Sahrens mdb_printf("BYTES "); 1193fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1194fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_bytes[i], 1195fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1196fa9e4066Sahrens 1197fa9e4066Sahrens 1198fa9e4066Sahrens mdb_printf("\n"); 1199fa9e4066Sahrens mdb_printf("EREAD %10#llx\n", vs->vs_read_errors); 1200fa9e4066Sahrens mdb_printf("EWRITE %10#llx\n", vs->vs_write_errors); 1201fa9e4066Sahrens mdb_printf("ECKSUM %10#llx\n", 1202fa9e4066Sahrens vs->vs_checksum_errors); 1203fa9e4066Sahrens mdb_dec_indent(4); 1204fa9e4066Sahrens } 1205fa9e4066Sahrens 1206614409b5Sahrens if (stats) 1207fa9e4066Sahrens mdb_printf("\n"); 1208fa9e4066Sahrens } 1209fa9e4066Sahrens 1210fa9e4066Sahrens children = vdev.vdev_children; 1211fa9e4066Sahrens 1212fa9e4066Sahrens if (children == 0 || !recursive) 1213fa9e4066Sahrens return (DCMD_OK); 1214fa9e4066Sahrens 1215fa9e4066Sahrens child = mdb_alloc(children * sizeof (void *), UM_SLEEP | UM_GC); 1216fa9e4066Sahrens if (mdb_vread(child, children * sizeof (void *), 1217fa9e4066Sahrens (uintptr_t)vdev.vdev_child) == -1) { 1218fa9e4066Sahrens mdb_warn("failed to read vdev children at %p", vdev.vdev_child); 1219fa9e4066Sahrens return (DCMD_ERR); 1220fa9e4066Sahrens } 1221fa9e4066Sahrens 1222fa9e4066Sahrens for (c = 0; c < children; c++) { 1223614409b5Sahrens if (do_print_vdev(child[c], flags, depth + 2, stats, 1224fa9e4066Sahrens recursive)) 1225fa9e4066Sahrens return (DCMD_ERR); 1226fa9e4066Sahrens } 1227fa9e4066Sahrens 1228fa9e4066Sahrens return (DCMD_OK); 1229fa9e4066Sahrens } 1230fa9e4066Sahrens 1231fa9e4066Sahrens static int 1232fa9e4066Sahrens vdev_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1233fa9e4066Sahrens { 1234fa9e4066Sahrens int recursive = FALSE; 1235fa9e4066Sahrens int stats = FALSE; 1236c5904d13Seschrock uint64_t depth = 0; 1237fa9e4066Sahrens 1238fa9e4066Sahrens if (mdb_getopts(argc, argv, 1239fa9e4066Sahrens 'r', MDB_OPT_SETBITS, TRUE, &recursive, 1240fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &stats, 1241c5904d13Seschrock 'd', MDB_OPT_UINT64, &depth, 1242fa9e4066Sahrens NULL) != argc) 1243fa9e4066Sahrens return (DCMD_USAGE); 1244fa9e4066Sahrens 1245fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 1246fa9e4066Sahrens mdb_warn("no vdev_t address given\n"); 1247fa9e4066Sahrens return (DCMD_ERR); 1248fa9e4066Sahrens } 1249fa9e4066Sahrens 1250c5904d13Seschrock return (do_print_vdev(addr, flags, (int)depth, stats, recursive)); 1251fa9e4066Sahrens } 1252fa9e4066Sahrens 12535f5f7a6fSahrens typedef struct metaslab_walk_data { 12545f5f7a6fSahrens uint64_t mw_numvdevs; 12555f5f7a6fSahrens uintptr_t *mw_vdevs; 12565f5f7a6fSahrens int mw_curvdev; 12575f5f7a6fSahrens uint64_t mw_nummss; 12585f5f7a6fSahrens uintptr_t *mw_mss; 12595f5f7a6fSahrens int mw_curms; 12605f5f7a6fSahrens } metaslab_walk_data_t; 12615f5f7a6fSahrens 12625f5f7a6fSahrens static int 12635f5f7a6fSahrens metaslab_walk_step(mdb_walk_state_t *wsp) 12645f5f7a6fSahrens { 12655f5f7a6fSahrens metaslab_walk_data_t *mw = wsp->walk_data; 12665f5f7a6fSahrens metaslab_t ms; 12675f5f7a6fSahrens uintptr_t msp; 12685f5f7a6fSahrens 12695f5f7a6fSahrens if (mw->mw_curvdev >= mw->mw_numvdevs) 12705f5f7a6fSahrens return (WALK_DONE); 12715f5f7a6fSahrens 12725f5f7a6fSahrens if (mw->mw_mss == NULL) { 12735f5f7a6fSahrens uintptr_t mssp; 12745f5f7a6fSahrens uintptr_t vdevp; 12755f5f7a6fSahrens 12765f5f7a6fSahrens ASSERT(mw->mw_curms == 0); 12775f5f7a6fSahrens ASSERT(mw->mw_nummss == 0); 12785f5f7a6fSahrens 12795f5f7a6fSahrens vdevp = mw->mw_vdevs[mw->mw_curvdev]; 12805f5f7a6fSahrens if (GETMEMB(vdevp, struct vdev, vdev_ms, mssp) || 12815f5f7a6fSahrens GETMEMB(vdevp, struct vdev, vdev_ms_count, mw->mw_nummss)) { 12825f5f7a6fSahrens return (WALK_ERR); 12835f5f7a6fSahrens } 12845f5f7a6fSahrens 12855f5f7a6fSahrens mw->mw_mss = mdb_alloc(mw->mw_nummss * sizeof (void*), 12865f5f7a6fSahrens UM_SLEEP | UM_GC); 12875f5f7a6fSahrens if (mdb_vread(mw->mw_mss, mw->mw_nummss * sizeof (void*), 12885f5f7a6fSahrens mssp) == -1) { 12895f5f7a6fSahrens mdb_warn("failed to read vdev_ms at %p", mssp); 12905f5f7a6fSahrens return (WALK_ERR); 12915f5f7a6fSahrens } 12925f5f7a6fSahrens } 12935f5f7a6fSahrens 12945f5f7a6fSahrens if (mw->mw_curms >= mw->mw_nummss) { 12955f5f7a6fSahrens mw->mw_mss = NULL; 12965f5f7a6fSahrens mw->mw_curms = 0; 12975f5f7a6fSahrens mw->mw_nummss = 0; 12985f5f7a6fSahrens mw->mw_curvdev++; 12995f5f7a6fSahrens return (WALK_NEXT); 13005f5f7a6fSahrens } 13015f5f7a6fSahrens 13025f5f7a6fSahrens msp = mw->mw_mss[mw->mw_curms]; 13035f5f7a6fSahrens if (mdb_vread(&ms, sizeof (metaslab_t), msp) == -1) { 13045f5f7a6fSahrens mdb_warn("failed to read metaslab_t at %p", msp); 13055f5f7a6fSahrens return (WALK_ERR); 13065f5f7a6fSahrens } 13075f5f7a6fSahrens 13085f5f7a6fSahrens mw->mw_curms++; 13095f5f7a6fSahrens 13105f5f7a6fSahrens return (wsp->walk_callback(msp, &ms, wsp->walk_cbdata)); 13115f5f7a6fSahrens } 13125f5f7a6fSahrens 13135f5f7a6fSahrens /* ARGSUSED */ 13145f5f7a6fSahrens static int 13155f5f7a6fSahrens metaslab_walk_init(mdb_walk_state_t *wsp) 13165f5f7a6fSahrens { 13175f5f7a6fSahrens metaslab_walk_data_t *mw; 13185f5f7a6fSahrens uintptr_t root_vdevp; 13195f5f7a6fSahrens uintptr_t childp; 13205f5f7a6fSahrens 13215f5f7a6fSahrens if (wsp->walk_addr == NULL) { 13225f5f7a6fSahrens mdb_warn("must supply address of spa_t\n"); 13235f5f7a6fSahrens return (WALK_ERR); 13245f5f7a6fSahrens } 13255f5f7a6fSahrens 13265f5f7a6fSahrens mw = mdb_zalloc(sizeof (metaslab_walk_data_t), UM_SLEEP | UM_GC); 13275f5f7a6fSahrens 13285f5f7a6fSahrens if (GETMEMB(wsp->walk_addr, struct spa, spa_root_vdev, root_vdevp) || 13295f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_children, mw->mw_numvdevs) || 13305f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_child, childp)) { 13315f5f7a6fSahrens return (DCMD_ERR); 13325f5f7a6fSahrens } 13335f5f7a6fSahrens 13345f5f7a6fSahrens mw->mw_vdevs = mdb_alloc(mw->mw_numvdevs * sizeof (void *), 13355f5f7a6fSahrens UM_SLEEP | UM_GC); 13365f5f7a6fSahrens if (mdb_vread(mw->mw_vdevs, mw->mw_numvdevs * sizeof (void *), 13375f5f7a6fSahrens childp) == -1) { 13385f5f7a6fSahrens mdb_warn("failed to read root vdev children at %p", childp); 13395f5f7a6fSahrens return (DCMD_ERR); 13405f5f7a6fSahrens } 13415f5f7a6fSahrens 13425f5f7a6fSahrens wsp->walk_data = mw; 13435f5f7a6fSahrens 13445f5f7a6fSahrens return (WALK_NEXT); 13455f5f7a6fSahrens } 13465f5f7a6fSahrens 1347fa9e4066Sahrens typedef struct mdb_spa { 1348fa9e4066Sahrens uintptr_t spa_dsl_pool; 1349fa9e4066Sahrens uintptr_t spa_root_vdev; 1350fa9e4066Sahrens } mdb_spa_t; 1351fa9e4066Sahrens 1352fa9e4066Sahrens typedef struct mdb_dsl_dir { 1353fa9e4066Sahrens uintptr_t dd_phys; 1354fa9e4066Sahrens int64_t dd_space_towrite[TXG_SIZE]; 1355fa9e4066Sahrens } mdb_dsl_dir_t; 1356fa9e4066Sahrens 1357fa9e4066Sahrens typedef struct mdb_dsl_dir_phys { 1358fa9e4066Sahrens uint64_t dd_used_bytes; 1359fa9e4066Sahrens uint64_t dd_compressed_bytes; 1360fa9e4066Sahrens uint64_t dd_uncompressed_bytes; 1361fa9e4066Sahrens } mdb_dsl_dir_phys_t; 1362fa9e4066Sahrens 1363fa9e4066Sahrens typedef struct mdb_vdev { 1364fa9e4066Sahrens uintptr_t vdev_parent; 1365fa9e4066Sahrens uintptr_t vdev_ms; 1366fa9e4066Sahrens uint64_t vdev_ms_count; 1367fa9e4066Sahrens vdev_stat_t vdev_stat; 1368fa9e4066Sahrens } mdb_vdev_t; 1369fa9e4066Sahrens 1370fa9e4066Sahrens typedef struct mdb_metaslab { 1371fa9e4066Sahrens space_map_t ms_allocmap[TXG_SIZE]; 1372fa9e4066Sahrens space_map_t ms_freemap[TXG_SIZE]; 1373fa9e4066Sahrens space_map_t ms_map; 1374ecc2d604Sbonwick space_map_obj_t ms_smo; 13755f5f7a6fSahrens space_map_obj_t ms_smo_syncing; 1376fa9e4066Sahrens } mdb_metaslab_t; 1377fa9e4066Sahrens 13785f5f7a6fSahrens typedef struct space_data { 13795f5f7a6fSahrens uint64_t ms_allocmap[TXG_SIZE]; 13805f5f7a6fSahrens uint64_t ms_freemap[TXG_SIZE]; 13815f5f7a6fSahrens uint64_t ms_map; 13825f5f7a6fSahrens uint64_t avail; 13835f5f7a6fSahrens uint64_t nowavail; 13845f5f7a6fSahrens } space_data_t; 13855f5f7a6fSahrens 13865f5f7a6fSahrens /* ARGSUSED */ 13875f5f7a6fSahrens static int 13885f5f7a6fSahrens space_cb(uintptr_t addr, const void *unknown, void *arg) 13895f5f7a6fSahrens { 13905f5f7a6fSahrens space_data_t *sd = arg; 13915f5f7a6fSahrens mdb_metaslab_t ms; 13925f5f7a6fSahrens 13935f5f7a6fSahrens if (GETMEMB(addr, struct metaslab, ms_allocmap, ms.ms_allocmap) || 13945f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_freemap, ms.ms_freemap) || 13955f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_map, ms.ms_map) || 13965f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo, ms.ms_smo) || 13975f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo_syncing, ms.ms_smo_syncing)) { 13985f5f7a6fSahrens return (WALK_ERR); 13995f5f7a6fSahrens } 14005f5f7a6fSahrens 14015f5f7a6fSahrens sd->ms_allocmap[0] += ms.ms_allocmap[0].sm_space; 14025f5f7a6fSahrens sd->ms_allocmap[1] += ms.ms_allocmap[1].sm_space; 14035f5f7a6fSahrens sd->ms_allocmap[2] += ms.ms_allocmap[2].sm_space; 14045f5f7a6fSahrens sd->ms_allocmap[3] += ms.ms_allocmap[3].sm_space; 14055f5f7a6fSahrens sd->ms_freemap[0] += ms.ms_freemap[0].sm_space; 14065f5f7a6fSahrens sd->ms_freemap[1] += ms.ms_freemap[1].sm_space; 14075f5f7a6fSahrens sd->ms_freemap[2] += ms.ms_freemap[2].sm_space; 14085f5f7a6fSahrens sd->ms_freemap[3] += ms.ms_freemap[3].sm_space; 14095f5f7a6fSahrens sd->ms_map += ms.ms_map.sm_space; 14105f5f7a6fSahrens sd->avail += ms.ms_map.sm_size - ms.ms_smo.smo_alloc; 14115f5f7a6fSahrens sd->nowavail += ms.ms_map.sm_size - ms.ms_smo_syncing.smo_alloc; 14125f5f7a6fSahrens 14135f5f7a6fSahrens return (WALK_NEXT); 14145f5f7a6fSahrens } 14155f5f7a6fSahrens 1416fa9e4066Sahrens /* 1417fa9e4066Sahrens * ::spa_space [-b] 1418fa9e4066Sahrens * 1419fa9e4066Sahrens * Given a spa_t, print out it's on-disk space usage and in-core 1420fa9e4066Sahrens * estimates of future usage. If -b is given, print space in bytes. 1421fa9e4066Sahrens * Otherwise print in megabytes. 1422fa9e4066Sahrens */ 1423fa9e4066Sahrens /* ARGSUSED */ 1424fa9e4066Sahrens static int 1425fa9e4066Sahrens spa_space(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1426fa9e4066Sahrens { 1427fa9e4066Sahrens mdb_spa_t spa; 1428fa9e4066Sahrens uintptr_t dp_root_dir; 1429fa9e4066Sahrens mdb_dsl_dir_t dd; 1430fa9e4066Sahrens mdb_dsl_dir_phys_t dsp; 1431fa9e4066Sahrens uint64_t children; 1432fa9e4066Sahrens uintptr_t childaddr; 14335f5f7a6fSahrens space_data_t sd; 1434fa9e4066Sahrens int shift = 20; 1435fa9e4066Sahrens char *suffix = "M"; 1436fa9e4066Sahrens int bits = FALSE; 1437fa9e4066Sahrens 1438fa9e4066Sahrens if (mdb_getopts(argc, argv, 'b', MDB_OPT_SETBITS, TRUE, &bits, NULL) != 1439fa9e4066Sahrens argc) 1440fa9e4066Sahrens return (DCMD_USAGE); 1441fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1442fa9e4066Sahrens return (DCMD_USAGE); 1443fa9e4066Sahrens 1444fa9e4066Sahrens if (bits) { 1445fa9e4066Sahrens shift = 0; 1446fa9e4066Sahrens suffix = ""; 1447fa9e4066Sahrens } 1448fa9e4066Sahrens 1449fa9e4066Sahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, spa.spa_dsl_pool) || 1450fa9e4066Sahrens GETMEMB(addr, struct spa, spa_root_vdev, spa.spa_root_vdev) || 1451fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_children, children) || 1452fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_child, childaddr) || 1453fa9e4066Sahrens GETMEMB(spa.spa_dsl_pool, struct dsl_pool, 1454fa9e4066Sahrens dp_root_dir, dp_root_dir) || 1455fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, dd_phys, dd.dd_phys) || 1456fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, 1457fa9e4066Sahrens dd_space_towrite, dd.dd_space_towrite) || 1458fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 14595f5f7a6fSahrens dd_used_bytes, dsp.dd_used_bytes) || 14605f5f7a6fSahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1461fa9e4066Sahrens dd_compressed_bytes, dsp.dd_compressed_bytes) || 1462fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1463fa9e4066Sahrens dd_uncompressed_bytes, dsp.dd_uncompressed_bytes)) { 1464fa9e4066Sahrens return (DCMD_ERR); 1465fa9e4066Sahrens } 1466fa9e4066Sahrens 1467fa9e4066Sahrens mdb_printf("dd_space_towrite = %llu%s %llu%s %llu%s %llu%s\n", 1468fa9e4066Sahrens dd.dd_space_towrite[0] >> shift, suffix, 1469fa9e4066Sahrens dd.dd_space_towrite[1] >> shift, suffix, 1470fa9e4066Sahrens dd.dd_space_towrite[2] >> shift, suffix, 1471fa9e4066Sahrens dd.dd_space_towrite[3] >> shift, suffix); 1472fa9e4066Sahrens 1473fa9e4066Sahrens mdb_printf("dd_phys.dd_used_bytes = %llu%s\n", 1474fa9e4066Sahrens dsp.dd_used_bytes >> shift, suffix); 1475fa9e4066Sahrens mdb_printf("dd_phys.dd_compressed_bytes = %llu%s\n", 1476fa9e4066Sahrens dsp.dd_compressed_bytes >> shift, suffix); 1477fa9e4066Sahrens mdb_printf("dd_phys.dd_uncompressed_bytes = %llu%s\n", 1478fa9e4066Sahrens dsp.dd_uncompressed_bytes >> shift, suffix); 1479fa9e4066Sahrens 14805f5f7a6fSahrens bzero(&sd, sizeof (sd)); 14815f5f7a6fSahrens if (mdb_pwalk("metaslab", space_cb, &sd, addr) != 0) { 14825f5f7a6fSahrens mdb_warn("can't walk metaslabs"); 1483fa9e4066Sahrens return (DCMD_ERR); 1484fa9e4066Sahrens } 1485fa9e4066Sahrens 1486fa9e4066Sahrens mdb_printf("ms_allocmap = %llu%s %llu%s %llu%s %llu%s\n", 14875f5f7a6fSahrens sd.ms_allocmap[0] >> shift, suffix, 14885f5f7a6fSahrens sd.ms_allocmap[1] >> shift, suffix, 14895f5f7a6fSahrens sd.ms_allocmap[2] >> shift, suffix, 14905f5f7a6fSahrens sd.ms_allocmap[3] >> shift, suffix); 1491fa9e4066Sahrens mdb_printf("ms_freemap = %llu%s %llu%s %llu%s %llu%s\n", 14925f5f7a6fSahrens sd.ms_freemap[0] >> shift, suffix, 14935f5f7a6fSahrens sd.ms_freemap[1] >> shift, suffix, 14945f5f7a6fSahrens sd.ms_freemap[2] >> shift, suffix, 14955f5f7a6fSahrens sd.ms_freemap[3] >> shift, suffix); 14965f5f7a6fSahrens mdb_printf("ms_map = %llu%s\n", sd.ms_map >> shift, suffix); 14975f5f7a6fSahrens mdb_printf("last synced avail = %llu%s\n", sd.avail >> shift, suffix); 14985f5f7a6fSahrens mdb_printf("current syncing avail = %llu%s\n", 14995f5f7a6fSahrens sd.nowavail >> shift, suffix); 1500fa9e4066Sahrens 1501fa9e4066Sahrens return (DCMD_OK); 1502fa9e4066Sahrens } 1503fa9e4066Sahrens 1504fa9e4066Sahrens /* 1505fa9e4066Sahrens * ::spa_verify 1506fa9e4066Sahrens * 1507fa9e4066Sahrens * Given a spa_t, verify that that the pool is self-consistent. 1508fa9e4066Sahrens * Currently, it only checks to make sure that the vdev tree exists. 1509fa9e4066Sahrens */ 1510fa9e4066Sahrens /* ARGSUSED */ 1511fa9e4066Sahrens static int 1512fa9e4066Sahrens spa_verify(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1513fa9e4066Sahrens { 1514fa9e4066Sahrens spa_t spa; 1515fa9e4066Sahrens 1516fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1517fa9e4066Sahrens return (DCMD_USAGE); 1518fa9e4066Sahrens 1519fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1520fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1521fa9e4066Sahrens return (DCMD_ERR); 1522fa9e4066Sahrens } 1523fa9e4066Sahrens 1524fa9e4066Sahrens if (spa.spa_root_vdev == NULL) { 1525fa9e4066Sahrens mdb_printf("no vdev tree present\n"); 1526fa9e4066Sahrens return (DCMD_OK); 1527fa9e4066Sahrens } 1528fa9e4066Sahrens 1529fa9e4066Sahrens return (DCMD_OK); 1530fa9e4066Sahrens } 1531fa9e4066Sahrens 1532ec9f632eSEric Schrock static int 1533ec9f632eSEric Schrock spa_print_aux(spa_aux_vdev_t *sav, uint_t flags, mdb_arg_t *v, 1534ec9f632eSEric Schrock const char *name) 1535ec9f632eSEric Schrock { 1536ec9f632eSEric Schrock uintptr_t *aux; 1537ec9f632eSEric Schrock size_t len; 1538ec9f632eSEric Schrock int ret, i; 1539ec9f632eSEric Schrock 1540ec9f632eSEric Schrock /* 1541ec9f632eSEric Schrock * Iterate over aux vdevs and print those out as well. This is a 1542ec9f632eSEric Schrock * little annoying because we don't have a root vdev to pass to ::vdev. 1543ec9f632eSEric Schrock * Instead, we print a single line and then call it for each child 1544ec9f632eSEric Schrock * vdev. 1545ec9f632eSEric Schrock */ 1546ec9f632eSEric Schrock if (sav->sav_count != 0) { 1547ec9f632eSEric Schrock v[1].a_type = MDB_TYPE_STRING; 1548ec9f632eSEric Schrock v[1].a_un.a_str = "-d"; 1549ec9f632eSEric Schrock v[2].a_type = MDB_TYPE_IMMEDIATE; 1550ec9f632eSEric Schrock v[2].a_un.a_val = 2; 1551ec9f632eSEric Schrock 1552ec9f632eSEric Schrock len = sav->sav_count * sizeof (uintptr_t); 1553ec9f632eSEric Schrock aux = mdb_alloc(len, UM_SLEEP); 1554ec9f632eSEric Schrock if (mdb_vread(aux, len, 1555ec9f632eSEric Schrock (uintptr_t)sav->sav_vdevs) == -1) { 1556ec9f632eSEric Schrock mdb_free(aux, len); 1557ec9f632eSEric Schrock mdb_warn("failed to read l2cache vdevs at %p", 1558ec9f632eSEric Schrock sav->sav_vdevs); 1559ec9f632eSEric Schrock return (DCMD_ERR); 1560ec9f632eSEric Schrock } 1561ec9f632eSEric Schrock 1562ec9f632eSEric Schrock mdb_printf("%-?s %-9s %-12s %s\n", "-", "-", "-", name); 1563ec9f632eSEric Schrock 1564ec9f632eSEric Schrock for (i = 0; i < sav->sav_count; i++) { 1565ec9f632eSEric Schrock ret = mdb_call_dcmd("vdev", aux[i], flags, 3, v); 1566ec9f632eSEric Schrock if (ret != DCMD_OK) { 1567ec9f632eSEric Schrock mdb_free(aux, len); 1568ec9f632eSEric Schrock return (ret); 1569ec9f632eSEric Schrock } 1570ec9f632eSEric Schrock } 1571ec9f632eSEric Schrock 1572ec9f632eSEric Schrock mdb_free(aux, len); 1573ec9f632eSEric Schrock } 1574ec9f632eSEric Schrock 1575ec9f632eSEric Schrock return (0); 1576ec9f632eSEric Schrock } 1577ec9f632eSEric Schrock 1578fa9e4066Sahrens /* 1579fa9e4066Sahrens * ::spa_vdevs 1580fa9e4066Sahrens * 1581fa9e4066Sahrens * -e Include error stats 1582fa9e4066Sahrens * 1583fa9e4066Sahrens * Print out a summarized list of vdevs for the given spa_t. 1584c5904d13Seschrock * This is accomplished by invoking "::vdev -re" on the root vdev, as well as 1585c5904d13Seschrock * iterating over the cache devices. 1586fa9e4066Sahrens */ 1587fa9e4066Sahrens /* ARGSUSED */ 1588fa9e4066Sahrens static int 1589fa9e4066Sahrens spa_vdevs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1590fa9e4066Sahrens { 1591fa9e4066Sahrens spa_t spa; 1592c5904d13Seschrock mdb_arg_t v[3]; 1593fa9e4066Sahrens int errors = FALSE; 1594ec9f632eSEric Schrock int ret; 1595fa9e4066Sahrens 1596fa9e4066Sahrens if (mdb_getopts(argc, argv, 1597fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 1598fa9e4066Sahrens NULL) != argc) 1599fa9e4066Sahrens return (DCMD_USAGE); 1600fa9e4066Sahrens 1601fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1602fa9e4066Sahrens return (DCMD_USAGE); 1603fa9e4066Sahrens 1604fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1605fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1606fa9e4066Sahrens return (DCMD_ERR); 1607fa9e4066Sahrens } 1608fa9e4066Sahrens 1609088e9d47Seschrock /* 1610088e9d47Seschrock * Unitialized spa_t structures can have a NULL root vdev. 1611088e9d47Seschrock */ 1612088e9d47Seschrock if (spa.spa_root_vdev == NULL) { 1613088e9d47Seschrock mdb_printf("no associated vdevs\n"); 1614088e9d47Seschrock return (DCMD_OK); 1615088e9d47Seschrock } 1616088e9d47Seschrock 1617c5904d13Seschrock v[0].a_type = MDB_TYPE_STRING; 1618c5904d13Seschrock v[0].a_un.a_str = errors ? "-re" : "-r"; 1619fa9e4066Sahrens 1620c5904d13Seschrock ret = mdb_call_dcmd("vdev", (uintptr_t)spa.spa_root_vdev, 1621c5904d13Seschrock flags, 1, v); 1622c5904d13Seschrock if (ret != DCMD_OK) 1623c5904d13Seschrock return (ret); 1624c5904d13Seschrock 1625ec9f632eSEric Schrock if (spa_print_aux(&spa.spa_l2cache, flags, v, "cache") != 0 || 1626ec9f632eSEric Schrock spa_print_aux(&spa.spa_spares, flags, v, "spares") != 0) 1627c5904d13Seschrock return (DCMD_ERR); 1628c5904d13Seschrock 1629c5904d13Seschrock return (DCMD_OK); 1630fa9e4066Sahrens } 1631fa9e4066Sahrens 1632ccae0b50Seschrock /* 1633ccae0b50Seschrock * ::zio 1634ccae0b50Seschrock * 1635ccae0b50Seschrock * Print a summary of zio_t and all its children. This is intended to display a 1636ccae0b50Seschrock * zio tree, and hence we only pick the most important pieces of information for 1637ccae0b50Seschrock * the main summary. More detailed information can always be found by doing a 1638ccae0b50Seschrock * '::print zio' on the underlying zio_t. The columns we display are: 1639ccae0b50Seschrock * 1640ccae0b50Seschrock * ADDRESS TYPE STAGE WAITER 1641ccae0b50Seschrock * 1642ccae0b50Seschrock * The 'address' column is indented by one space for each depth level as we 1643ccae0b50Seschrock * descend down the tree. 1644ccae0b50Seschrock */ 1645fac3008cSeschrock 1646a3f829aeSBill Moore #define ZIO_MAXINDENT 24 1647a3f829aeSBill Moore #define ZIO_MAXWIDTH (sizeof (uintptr_t) * 2 + ZIO_MAXINDENT) 1648a3f829aeSBill Moore #define ZIO_WALK_SELF 0 1649a3f829aeSBill Moore #define ZIO_WALK_CHILD 1 1650a3f829aeSBill Moore #define ZIO_WALK_PARENT 2 1651a3f829aeSBill Moore 1652a3f829aeSBill Moore typedef struct zio_print_args { 1653a3f829aeSBill Moore int zpa_current_depth; 1654a3f829aeSBill Moore int zpa_min_depth; 1655a3f829aeSBill Moore int zpa_max_depth; 1656a3f829aeSBill Moore int zpa_type; 1657a3f829aeSBill Moore uint_t zpa_flags; 1658a3f829aeSBill Moore } zio_print_args_t; 1659a3f829aeSBill Moore 1660a3f829aeSBill Moore static int zio_child_cb(uintptr_t addr, const void *unknown, void *arg); 1661fac3008cSeschrock 1662ccae0b50Seschrock static int 1663ccae0b50Seschrock zio_print_cb(uintptr_t addr, const void *data, void *priv) 1664ccae0b50Seschrock { 1665ccae0b50Seschrock const zio_t *zio = data; 1666a3f829aeSBill Moore zio_print_args_t *zpa = priv; 1667ccae0b50Seschrock mdb_ctf_id_t type_enum, stage_enum; 1668a3f829aeSBill Moore int indent = zpa->zpa_current_depth; 1669ccae0b50Seschrock const char *type, *stage; 1670a3f829aeSBill Moore uintptr_t laddr; 1671ccae0b50Seschrock 1672a3f829aeSBill Moore if (indent > ZIO_MAXINDENT) 1673a3f829aeSBill Moore indent = ZIO_MAXINDENT; 1674ccae0b50Seschrock 1675ccae0b50Seschrock if (mdb_ctf_lookup_by_name("enum zio_type", &type_enum) == -1 || 1676ccae0b50Seschrock mdb_ctf_lookup_by_name("enum zio_stage", &stage_enum) == -1) { 1677ccae0b50Seschrock mdb_warn("failed to lookup zio enums"); 1678ccae0b50Seschrock return (WALK_ERR); 1679ccae0b50Seschrock } 1680ccae0b50Seschrock 1681ccae0b50Seschrock if ((type = mdb_ctf_enum_name(type_enum, zio->io_type)) != NULL) 1682ccae0b50Seschrock type += sizeof ("ZIO_TYPE_") - 1; 1683ccae0b50Seschrock else 1684ccae0b50Seschrock type = "?"; 1685ccae0b50Seschrock 1686ccae0b50Seschrock if ((stage = mdb_ctf_enum_name(stage_enum, zio->io_stage)) != NULL) 1687ccae0b50Seschrock stage += sizeof ("ZIO_STAGE_") - 1; 1688ccae0b50Seschrock else 1689ccae0b50Seschrock stage = "?"; 1690ccae0b50Seschrock 1691a3f829aeSBill Moore if (zpa->zpa_current_depth >= zpa->zpa_min_depth) { 1692a3f829aeSBill Moore if (zpa->zpa_flags & DCMD_PIPE_OUT) { 1693a3f829aeSBill Moore mdb_printf("%?p\n", addr); 1694a3f829aeSBill Moore } else { 1695a3f829aeSBill Moore mdb_printf("%*s%-*p %-5s %-16s ", indent, "", 1696a3f829aeSBill Moore ZIO_MAXWIDTH - indent, addr, type, stage); 1697ccae0b50Seschrock if (zio->io_waiter) 1698ccae0b50Seschrock mdb_printf("%?p\n", zio->io_waiter); 1699ccae0b50Seschrock else 1700ccae0b50Seschrock mdb_printf("-\n"); 1701a3f829aeSBill Moore } 1702a3f829aeSBill Moore } 1703ccae0b50Seschrock 1704a3f829aeSBill Moore if (zpa->zpa_current_depth >= zpa->zpa_max_depth) 1705a3f829aeSBill Moore return (WALK_NEXT); 1706a3f829aeSBill Moore 1707a3f829aeSBill Moore if (zpa->zpa_type == ZIO_WALK_PARENT) 1708a3f829aeSBill Moore laddr = addr + OFFSETOF(zio_t, io_parent_list); 1709a3f829aeSBill Moore else 1710a3f829aeSBill Moore laddr = addr + OFFSETOF(zio_t, io_child_list); 1711a3f829aeSBill Moore 1712a3f829aeSBill Moore zpa->zpa_current_depth++; 1713a3f829aeSBill Moore if (mdb_pwalk("list", zio_child_cb, zpa, laddr) != 0) { 1714a3f829aeSBill Moore mdb_warn("failed to walk zio_t children at %p\n", laddr); 1715a3f829aeSBill Moore return (WALK_ERR); 1716a3f829aeSBill Moore } 1717a3f829aeSBill Moore zpa->zpa_current_depth--; 1718a3f829aeSBill Moore 1719a3f829aeSBill Moore return (WALK_NEXT); 1720a3f829aeSBill Moore } 1721a3f829aeSBill Moore 1722a3f829aeSBill Moore /* ARGSUSED */ 1723a3f829aeSBill Moore static int 1724a3f829aeSBill Moore zio_child_cb(uintptr_t addr, const void *unknown, void *arg) 1725a3f829aeSBill Moore { 1726a3f829aeSBill Moore zio_link_t zl; 1727a3f829aeSBill Moore zio_t zio; 1728a3f829aeSBill Moore uintptr_t ziop; 1729a3f829aeSBill Moore zio_print_args_t *zpa = arg; 1730a3f829aeSBill Moore 1731a3f829aeSBill Moore if (mdb_vread(&zl, sizeof (zl), addr) == -1) { 1732a3f829aeSBill Moore mdb_warn("failed to read zio_link_t at %p", addr); 1733ccae0b50Seschrock return (WALK_ERR); 1734ccae0b50Seschrock } 1735ccae0b50Seschrock 1736a3f829aeSBill Moore if (zpa->zpa_type == ZIO_WALK_PARENT) 1737a3f829aeSBill Moore ziop = (uintptr_t)zl.zl_parent; 1738a3f829aeSBill Moore else 1739a3f829aeSBill Moore ziop = (uintptr_t)zl.zl_child; 1740a3f829aeSBill Moore 1741a3f829aeSBill Moore if (mdb_vread(&zio, sizeof (zio_t), ziop) == -1) { 1742a3f829aeSBill Moore mdb_warn("failed to read zio_t at %p", ziop); 1743a3f829aeSBill Moore return (WALK_ERR); 1744a3f829aeSBill Moore } 1745a3f829aeSBill Moore 1746a3f829aeSBill Moore return (zio_print_cb(ziop, &zio, arg)); 1747ccae0b50Seschrock } 1748ccae0b50Seschrock 1749ccae0b50Seschrock /* ARGSUSED */ 1750ccae0b50Seschrock static int 1751ccae0b50Seschrock zio_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1752ccae0b50Seschrock { 1753ccae0b50Seschrock zio_t zio; 1754a3f829aeSBill Moore zio_print_args_t zpa = { 0 }; 1755ccae0b50Seschrock 1756ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1757ccae0b50Seschrock return (DCMD_USAGE); 1758ccae0b50Seschrock 1759a3f829aeSBill Moore if (mdb_getopts(argc, argv, 1760a3f829aeSBill Moore 'r', MDB_OPT_SETBITS, INT_MAX, &zpa.zpa_max_depth, 1761a3f829aeSBill Moore 'c', MDB_OPT_SETBITS, ZIO_WALK_CHILD, &zpa.zpa_type, 1762a3f829aeSBill Moore 'p', MDB_OPT_SETBITS, ZIO_WALK_PARENT, &zpa.zpa_type, 1763a3f829aeSBill Moore NULL) != argc) 1764a3f829aeSBill Moore return (DCMD_USAGE); 1765a3f829aeSBill Moore 1766a3f829aeSBill Moore zpa.zpa_flags = flags; 1767a3f829aeSBill Moore if (zpa.zpa_max_depth != 0) { 1768a3f829aeSBill Moore if (zpa.zpa_type == ZIO_WALK_SELF) 1769a3f829aeSBill Moore zpa.zpa_type = ZIO_WALK_CHILD; 1770a3f829aeSBill Moore } else if (zpa.zpa_type != ZIO_WALK_SELF) { 1771a3f829aeSBill Moore zpa.zpa_min_depth = 1; 1772a3f829aeSBill Moore zpa.zpa_max_depth = 1; 1773a3f829aeSBill Moore } 1774a3f829aeSBill Moore 1775ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio_t), addr) == -1) { 1776ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", addr); 1777ccae0b50Seschrock return (DCMD_ERR); 1778ccae0b50Seschrock } 1779ccae0b50Seschrock 1780a3f829aeSBill Moore if (!(flags & DCMD_PIPE_OUT) && DCMD_HDRSPEC(flags)) 1781a3f829aeSBill Moore mdb_printf("%<u>%-*s %-5s %-16s %-?s%</u>\n", ZIO_MAXWIDTH, 1782fac3008cSeschrock "ADDRESS", "TYPE", "STAGE", "WAITER"); 1783fac3008cSeschrock 1784a3f829aeSBill Moore if (zio_print_cb(addr, &zio, &zpa) != WALK_NEXT) 1785ccae0b50Seschrock return (DCMD_ERR); 1786ccae0b50Seschrock 1787ccae0b50Seschrock return (DCMD_OK); 1788ccae0b50Seschrock } 1789ccae0b50Seschrock 1790ccae0b50Seschrock /* 1791ccae0b50Seschrock * [addr]::zio_state 1792ccae0b50Seschrock * 1793ccae0b50Seschrock * Print a summary of all zio_t structures on the system, or for a particular 1794ccae0b50Seschrock * pool. This is equivalent to '::walk zio_root | ::zio'. 1795ccae0b50Seschrock */ 1796ccae0b50Seschrock /*ARGSUSED*/ 1797ccae0b50Seschrock static int 1798ccae0b50Seschrock zio_state(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1799ccae0b50Seschrock { 1800ccae0b50Seschrock /* 1801ccae0b50Seschrock * MDB will remember the last address of the pipeline, so if we don't 1802ccae0b50Seschrock * zero this we'll end up trying to walk zio structures for a 1803ccae0b50Seschrock * non-existent spa_t. 1804ccae0b50Seschrock */ 1805ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1806ccae0b50Seschrock addr = 0; 1807ccae0b50Seschrock 1808ccae0b50Seschrock return (mdb_pwalk_dcmd("zio_root", "zio", argc, argv, addr)); 1809ccae0b50Seschrock } 1810ccae0b50Seschrock 1811fa9e4066Sahrens typedef struct txg_list_walk_data { 1812fa9e4066Sahrens uintptr_t lw_head[TXG_SIZE]; 1813fa9e4066Sahrens int lw_txgoff; 1814fa9e4066Sahrens int lw_maxoff; 1815fa9e4066Sahrens size_t lw_offset; 1816fa9e4066Sahrens void *lw_obj; 1817fa9e4066Sahrens } txg_list_walk_data_t; 1818fa9e4066Sahrens 1819fa9e4066Sahrens static int 1820fa9e4066Sahrens txg_list_walk_init_common(mdb_walk_state_t *wsp, int txg, int maxoff) 1821fa9e4066Sahrens { 1822fa9e4066Sahrens txg_list_walk_data_t *lwd; 1823fa9e4066Sahrens txg_list_t list; 1824fa9e4066Sahrens int i; 1825fa9e4066Sahrens 1826fa9e4066Sahrens lwd = mdb_alloc(sizeof (txg_list_walk_data_t), UM_SLEEP | UM_GC); 1827fa9e4066Sahrens if (mdb_vread(&list, sizeof (txg_list_t), wsp->walk_addr) == -1) { 1828fa9e4066Sahrens mdb_warn("failed to read txg_list_t at %#lx", wsp->walk_addr); 1829fa9e4066Sahrens return (WALK_ERR); 1830fa9e4066Sahrens } 1831fa9e4066Sahrens 1832fa9e4066Sahrens for (i = 0; i < TXG_SIZE; i++) 1833fa9e4066Sahrens lwd->lw_head[i] = (uintptr_t)list.tl_head[i]; 1834fa9e4066Sahrens lwd->lw_offset = list.tl_offset; 1835fa9e4066Sahrens lwd->lw_obj = mdb_alloc(lwd->lw_offset + sizeof (txg_node_t), 1836fa9e4066Sahrens UM_SLEEP | UM_GC); 1837fa9e4066Sahrens lwd->lw_txgoff = txg; 1838fa9e4066Sahrens lwd->lw_maxoff = maxoff; 1839fa9e4066Sahrens 1840fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1841fa9e4066Sahrens wsp->walk_data = lwd; 1842fa9e4066Sahrens 1843fa9e4066Sahrens return (WALK_NEXT); 1844fa9e4066Sahrens } 1845fa9e4066Sahrens 1846fa9e4066Sahrens static int 1847fa9e4066Sahrens txg_list_walk_init(mdb_walk_state_t *wsp) 1848fa9e4066Sahrens { 1849fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, TXG_SIZE-1)); 1850fa9e4066Sahrens } 1851fa9e4066Sahrens 1852fa9e4066Sahrens static int 1853fa9e4066Sahrens txg_list0_walk_init(mdb_walk_state_t *wsp) 1854fa9e4066Sahrens { 1855fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, 0)); 1856fa9e4066Sahrens } 1857fa9e4066Sahrens 1858fa9e4066Sahrens static int 1859fa9e4066Sahrens txg_list1_walk_init(mdb_walk_state_t *wsp) 1860fa9e4066Sahrens { 1861fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 1, 1)); 1862fa9e4066Sahrens } 1863fa9e4066Sahrens 1864fa9e4066Sahrens static int 1865fa9e4066Sahrens txg_list2_walk_init(mdb_walk_state_t *wsp) 1866fa9e4066Sahrens { 1867fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 2, 2)); 1868fa9e4066Sahrens } 1869fa9e4066Sahrens 1870fa9e4066Sahrens static int 1871fa9e4066Sahrens txg_list3_walk_init(mdb_walk_state_t *wsp) 1872fa9e4066Sahrens { 1873fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 3, 3)); 1874fa9e4066Sahrens } 1875fa9e4066Sahrens 1876fa9e4066Sahrens static int 1877fa9e4066Sahrens txg_list_walk_step(mdb_walk_state_t *wsp) 1878fa9e4066Sahrens { 1879fa9e4066Sahrens txg_list_walk_data_t *lwd = wsp->walk_data; 1880fa9e4066Sahrens uintptr_t addr; 1881fa9e4066Sahrens txg_node_t *node; 1882fa9e4066Sahrens int status; 1883fa9e4066Sahrens 1884fa9e4066Sahrens while (wsp->walk_addr == NULL && lwd->lw_txgoff < lwd->lw_maxoff) { 1885fa9e4066Sahrens lwd->lw_txgoff++; 1886fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1887fa9e4066Sahrens } 1888fa9e4066Sahrens 1889fa9e4066Sahrens if (wsp->walk_addr == NULL) 1890fa9e4066Sahrens return (WALK_DONE); 1891fa9e4066Sahrens 1892fa9e4066Sahrens addr = wsp->walk_addr - lwd->lw_offset; 1893fa9e4066Sahrens 1894fa9e4066Sahrens if (mdb_vread(lwd->lw_obj, 1895fa9e4066Sahrens lwd->lw_offset + sizeof (txg_node_t), addr) == -1) { 1896fa9e4066Sahrens mdb_warn("failed to read list element at %#lx", addr); 1897fa9e4066Sahrens return (WALK_ERR); 1898fa9e4066Sahrens } 1899fa9e4066Sahrens 1900fa9e4066Sahrens status = wsp->walk_callback(addr, lwd->lw_obj, wsp->walk_cbdata); 1901fa9e4066Sahrens node = (txg_node_t *)((uintptr_t)lwd->lw_obj + lwd->lw_offset); 1902fa9e4066Sahrens wsp->walk_addr = (uintptr_t)node->tn_next[lwd->lw_txgoff]; 1903fa9e4066Sahrens 1904fa9e4066Sahrens return (status); 1905fa9e4066Sahrens } 1906fa9e4066Sahrens 1907fa9e4066Sahrens /* 1908fa9e4066Sahrens * ::walk spa 1909fa9e4066Sahrens * 1910fa9e4066Sahrens * Walk all named spa_t structures in the namespace. This is nothing more than 1911fa9e4066Sahrens * a layered avl walk. 1912fa9e4066Sahrens */ 1913fa9e4066Sahrens static int 1914fa9e4066Sahrens spa_walk_init(mdb_walk_state_t *wsp) 1915fa9e4066Sahrens { 1916fa9e4066Sahrens GElf_Sym sym; 1917fa9e4066Sahrens 1918fa9e4066Sahrens if (wsp->walk_addr != NULL) { 1919fa9e4066Sahrens mdb_warn("spa walk only supports global walks\n"); 1920fa9e4066Sahrens return (WALK_ERR); 1921fa9e4066Sahrens } 1922fa9e4066Sahrens 1923fa9e4066Sahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "spa_namespace_avl", &sym) == -1) { 1924fa9e4066Sahrens mdb_warn("failed to find symbol 'spa_namespace_avl'"); 1925fa9e4066Sahrens return (WALK_ERR); 1926fa9e4066Sahrens } 1927fa9e4066Sahrens 1928fa9e4066Sahrens wsp->walk_addr = (uintptr_t)sym.st_value; 1929fa9e4066Sahrens 1930fa9e4066Sahrens if (mdb_layered_walk("avl", wsp) == -1) { 1931fa9e4066Sahrens mdb_warn("failed to walk 'avl'\n"); 1932fa9e4066Sahrens return (WALK_ERR); 1933fa9e4066Sahrens } 1934fa9e4066Sahrens 1935fa9e4066Sahrens return (WALK_NEXT); 1936fa9e4066Sahrens } 1937fa9e4066Sahrens 1938fa9e4066Sahrens static int 1939fa9e4066Sahrens spa_walk_step(mdb_walk_state_t *wsp) 1940fa9e4066Sahrens { 1941fa9e4066Sahrens spa_t spa; 1942fa9e4066Sahrens 1943fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), wsp->walk_addr) == -1) { 1944fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", wsp->walk_addr); 1945fa9e4066Sahrens return (WALK_ERR); 1946fa9e4066Sahrens } 1947fa9e4066Sahrens 1948fa9e4066Sahrens return (wsp->walk_callback(wsp->walk_addr, &spa, wsp->walk_cbdata)); 1949fa9e4066Sahrens } 1950fa9e4066Sahrens 1951fa9e4066Sahrens /* 1952ccae0b50Seschrock * [addr]::walk zio 1953ccae0b50Seschrock * 1954ccae0b50Seschrock * Walk all active zio_t structures on the system. This is simply a layered 1955ccae0b50Seschrock * walk on top of ::walk zio_cache, with the optional ability to limit the 1956ccae0b50Seschrock * structures to a particular pool. 1957ccae0b50Seschrock */ 1958ccae0b50Seschrock static int 1959ccae0b50Seschrock zio_walk_init(mdb_walk_state_t *wsp) 1960ccae0b50Seschrock { 1961ccae0b50Seschrock wsp->walk_data = (void *)wsp->walk_addr; 1962ccae0b50Seschrock 1963ccae0b50Seschrock if (mdb_layered_walk("zio_cache", wsp) == -1) { 1964ccae0b50Seschrock mdb_warn("failed to walk 'zio_cache'\n"); 1965ccae0b50Seschrock return (WALK_ERR); 1966ccae0b50Seschrock } 1967ccae0b50Seschrock 1968ccae0b50Seschrock return (WALK_NEXT); 1969ccae0b50Seschrock } 1970ccae0b50Seschrock 1971ccae0b50Seschrock static int 1972ccae0b50Seschrock zio_walk_step(mdb_walk_state_t *wsp) 1973ccae0b50Seschrock { 1974ccae0b50Seschrock zio_t zio; 1975ccae0b50Seschrock 1976ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1977ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1978ccae0b50Seschrock return (WALK_ERR); 1979ccae0b50Seschrock } 1980ccae0b50Seschrock 1981ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1982ccae0b50Seschrock return (WALK_NEXT); 1983ccae0b50Seschrock 1984ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1985ccae0b50Seschrock } 1986ccae0b50Seschrock 1987ccae0b50Seschrock /* 1988ccae0b50Seschrock * [addr]::walk zio_root 1989ccae0b50Seschrock * 1990ccae0b50Seschrock * Walk only root zio_t structures, optionally for a particular spa_t. 1991ccae0b50Seschrock */ 1992ccae0b50Seschrock static int 1993ccae0b50Seschrock zio_walk_root_step(mdb_walk_state_t *wsp) 1994ccae0b50Seschrock { 1995ccae0b50Seschrock zio_t zio; 1996ccae0b50Seschrock 1997ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1998ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1999ccae0b50Seschrock return (WALK_ERR); 2000ccae0b50Seschrock } 2001ccae0b50Seschrock 2002ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 2003ccae0b50Seschrock return (WALK_NEXT); 2004ccae0b50Seschrock 2005a3f829aeSBill Moore /* If the parent list is not empty, ignore */ 2006a3f829aeSBill Moore if (zio.io_parent_list.list_head.list_next != 2007a3f829aeSBill Moore &((zio_t *)wsp->walk_addr)->io_parent_list.list_head) 2008ccae0b50Seschrock return (WALK_NEXT); 2009ccae0b50Seschrock 2010ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 2011ccae0b50Seschrock } 2012ccae0b50Seschrock 201388b7b0f2SMatthew Ahrens #define NICENUM_BUFLEN 6 201488b7b0f2SMatthew Ahrens 201588b7b0f2SMatthew Ahrens static int 2016ff64c0f7SMatthew Ahrens snprintfrac(char *buf, int len, 2017ff64c0f7SMatthew Ahrens uint64_t numerator, uint64_t denom, int frac_digits) 201888b7b0f2SMatthew Ahrens { 2019ff64c0f7SMatthew Ahrens int mul = 1; 202088b7b0f2SMatthew Ahrens int whole, frac, i; 202188b7b0f2SMatthew Ahrens 202288b7b0f2SMatthew Ahrens for (i = frac_digits; i; i--) 202388b7b0f2SMatthew Ahrens mul *= 10; 2024ff64c0f7SMatthew Ahrens whole = numerator / denom; 2025ff64c0f7SMatthew Ahrens frac = mul * numerator / denom - mul * whole; 202688b7b0f2SMatthew Ahrens return (mdb_snprintf(buf, len, "%u.%0*u", whole, frac_digits, frac)); 202788b7b0f2SMatthew Ahrens } 202888b7b0f2SMatthew Ahrens 202988b7b0f2SMatthew Ahrens static void 203088b7b0f2SMatthew Ahrens mdb_nicenum(uint64_t num, char *buf) 203188b7b0f2SMatthew Ahrens { 203288b7b0f2SMatthew Ahrens uint64_t n = num; 203388b7b0f2SMatthew Ahrens int index = 0; 203488b7b0f2SMatthew Ahrens char *u; 203588b7b0f2SMatthew Ahrens 203688b7b0f2SMatthew Ahrens while (n >= 1024) { 203788b7b0f2SMatthew Ahrens n = (n + (1024 / 2)) / 1024; /* Round up or down */ 203888b7b0f2SMatthew Ahrens index++; 203988b7b0f2SMatthew Ahrens } 204088b7b0f2SMatthew Ahrens 204188b7b0f2SMatthew Ahrens u = &" \0K\0M\0G\0T\0P\0E\0"[index*2]; 204288b7b0f2SMatthew Ahrens 204388b7b0f2SMatthew Ahrens if (index == 0) { 204488b7b0f2SMatthew Ahrens (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu", 204588b7b0f2SMatthew Ahrens (u_longlong_t)n); 204688b7b0f2SMatthew Ahrens } else if (n < 10 && (num & (num - 1)) != 0) { 2047ff64c0f7SMatthew Ahrens (void) snprintfrac(buf, NICENUM_BUFLEN, 2048ff64c0f7SMatthew Ahrens num, 1ULL << 10 * index, 2); 204988b7b0f2SMatthew Ahrens strcat(buf, u); 205088b7b0f2SMatthew Ahrens } else if (n < 100 && (num & (num - 1)) != 0) { 2051ff64c0f7SMatthew Ahrens (void) snprintfrac(buf, NICENUM_BUFLEN, 2052ff64c0f7SMatthew Ahrens num, 1ULL << 10 * index, 1); 205388b7b0f2SMatthew Ahrens strcat(buf, u); 205488b7b0f2SMatthew Ahrens } else { 205588b7b0f2SMatthew Ahrens (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu%s", 205688b7b0f2SMatthew Ahrens (u_longlong_t)n, u); 205788b7b0f2SMatthew Ahrens } 205888b7b0f2SMatthew Ahrens } 205988b7b0f2SMatthew Ahrens 206088b7b0f2SMatthew Ahrens /* 206188b7b0f2SMatthew Ahrens * ::zfs_blkstats 206288b7b0f2SMatthew Ahrens * 206388b7b0f2SMatthew Ahrens * -v print verbose per-level information 206488b7b0f2SMatthew Ahrens * 206588b7b0f2SMatthew Ahrens */ 206688b7b0f2SMatthew Ahrens static int 206788b7b0f2SMatthew Ahrens zfs_blkstats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 206888b7b0f2SMatthew Ahrens { 206988b7b0f2SMatthew Ahrens boolean_t verbose = B_FALSE; 207088b7b0f2SMatthew Ahrens zfs_all_blkstats_t stats; 207188b7b0f2SMatthew Ahrens dmu_object_type_t t; 207288b7b0f2SMatthew Ahrens zfs_blkstat_t *tzb; 207388b7b0f2SMatthew Ahrens uint64_t ditto; 207488b7b0f2SMatthew Ahrens dmu_object_type_info_t dmu_ot[DMU_OT_NUMTYPES + 10]; 207588b7b0f2SMatthew Ahrens /* +10 in case it grew */ 207688b7b0f2SMatthew Ahrens 207788b7b0f2SMatthew Ahrens if (mdb_readvar(&dmu_ot, "dmu_ot") == -1) { 207888b7b0f2SMatthew Ahrens mdb_warn("failed to read 'dmu_ot'"); 207988b7b0f2SMatthew Ahrens return (DCMD_ERR); 208088b7b0f2SMatthew Ahrens } 208188b7b0f2SMatthew Ahrens 208288b7b0f2SMatthew Ahrens if (mdb_getopts(argc, argv, 208388b7b0f2SMatthew Ahrens 'v', MDB_OPT_SETBITS, TRUE, &verbose, 208488b7b0f2SMatthew Ahrens NULL) != argc) 208588b7b0f2SMatthew Ahrens return (DCMD_USAGE); 208688b7b0f2SMatthew Ahrens 208788b7b0f2SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) 208888b7b0f2SMatthew Ahrens return (DCMD_USAGE); 208988b7b0f2SMatthew Ahrens 209088b7b0f2SMatthew Ahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, addr) || 209188b7b0f2SMatthew Ahrens GETMEMB(addr, struct dsl_pool, dp_blkstats, addr) || 209288b7b0f2SMatthew Ahrens mdb_vread(&stats, sizeof (zfs_all_blkstats_t), addr) == -1) { 209388b7b0f2SMatthew Ahrens mdb_warn("failed to read data at %p;", addr); 209488b7b0f2SMatthew Ahrens mdb_printf("maybe no stats? run \"zpool scrub\" first."); 209588b7b0f2SMatthew Ahrens return (DCMD_ERR); 209688b7b0f2SMatthew Ahrens } 209788b7b0f2SMatthew Ahrens 209888b7b0f2SMatthew Ahrens tzb = &stats.zab_type[DN_MAX_LEVELS][DMU_OT_NUMTYPES]; 209988b7b0f2SMatthew Ahrens if (tzb->zb_gangs != 0) { 210088b7b0f2SMatthew Ahrens mdb_printf("Ganged blocks: %llu\n", 210188b7b0f2SMatthew Ahrens (longlong_t)tzb->zb_gangs); 210288b7b0f2SMatthew Ahrens } 210388b7b0f2SMatthew Ahrens 210488b7b0f2SMatthew Ahrens ditto = tzb->zb_ditto_2_of_2_samevdev + tzb->zb_ditto_2_of_3_samevdev + 210588b7b0f2SMatthew Ahrens tzb->zb_ditto_3_of_3_samevdev; 210688b7b0f2SMatthew Ahrens if (ditto != 0) { 210788b7b0f2SMatthew Ahrens mdb_printf("Dittoed blocks on same vdev: %llu\n", 210888b7b0f2SMatthew Ahrens (longlong_t)ditto); 210988b7b0f2SMatthew Ahrens } 211088b7b0f2SMatthew Ahrens 211188b7b0f2SMatthew Ahrens mdb_printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 211288b7b0f2SMatthew Ahrens "\t avg\t comp\t%%Total\tType\n"); 211388b7b0f2SMatthew Ahrens 211488b7b0f2SMatthew Ahrens for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 211588b7b0f2SMatthew Ahrens char csize[NICENUM_BUFLEN], lsize[NICENUM_BUFLEN]; 211688b7b0f2SMatthew Ahrens char psize[NICENUM_BUFLEN], asize[NICENUM_BUFLEN]; 211788b7b0f2SMatthew Ahrens char avg[NICENUM_BUFLEN]; 211888b7b0f2SMatthew Ahrens char comp[NICENUM_BUFLEN], pct[NICENUM_BUFLEN]; 211988b7b0f2SMatthew Ahrens char typename[64]; 212088b7b0f2SMatthew Ahrens int l; 212188b7b0f2SMatthew Ahrens 212288b7b0f2SMatthew Ahrens 212388b7b0f2SMatthew Ahrens if (t == DMU_OT_DEFERRED) 212488b7b0f2SMatthew Ahrens strcpy(typename, "deferred free"); 212588b7b0f2SMatthew Ahrens else if (t == DMU_OT_TOTAL) 212688b7b0f2SMatthew Ahrens strcpy(typename, "Total"); 212788b7b0f2SMatthew Ahrens else if (mdb_readstr(typename, sizeof (typename), 212888b7b0f2SMatthew Ahrens (uintptr_t)dmu_ot[t].ot_name) == -1) { 212988b7b0f2SMatthew Ahrens mdb_warn("failed to read type name"); 213088b7b0f2SMatthew Ahrens return (DCMD_ERR); 213188b7b0f2SMatthew Ahrens } 213288b7b0f2SMatthew Ahrens 213388b7b0f2SMatthew Ahrens if (stats.zab_type[DN_MAX_LEVELS][t].zb_asize == 0) 213488b7b0f2SMatthew Ahrens continue; 213588b7b0f2SMatthew Ahrens 213688b7b0f2SMatthew Ahrens for (l = -1; l < DN_MAX_LEVELS; l++) { 213788b7b0f2SMatthew Ahrens int level = (l == -1 ? DN_MAX_LEVELS : l); 213888b7b0f2SMatthew Ahrens zfs_blkstat_t *zb = &stats.zab_type[level][t]; 213988b7b0f2SMatthew Ahrens 214088b7b0f2SMatthew Ahrens if (zb->zb_asize == 0) 214188b7b0f2SMatthew Ahrens continue; 214288b7b0f2SMatthew Ahrens 214388b7b0f2SMatthew Ahrens /* 214488b7b0f2SMatthew Ahrens * Don't print each level unless requested. 214588b7b0f2SMatthew Ahrens */ 214688b7b0f2SMatthew Ahrens if (!verbose && level != DN_MAX_LEVELS) 214788b7b0f2SMatthew Ahrens continue; 214888b7b0f2SMatthew Ahrens 214988b7b0f2SMatthew Ahrens /* 215088b7b0f2SMatthew Ahrens * If all the space is level 0, don't print the 215188b7b0f2SMatthew Ahrens * level 0 separately. 215288b7b0f2SMatthew Ahrens */ 215388b7b0f2SMatthew Ahrens if (level == 0 && zb->zb_asize == 215488b7b0f2SMatthew Ahrens stats.zab_type[DN_MAX_LEVELS][t].zb_asize) 215588b7b0f2SMatthew Ahrens continue; 215688b7b0f2SMatthew Ahrens 215788b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_count, csize); 215888b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_lsize, lsize); 215988b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_psize, psize); 216088b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize, asize); 216188b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2162ff64c0f7SMatthew Ahrens (void) snprintfrac(comp, NICENUM_BUFLEN, 2163ff64c0f7SMatthew Ahrens zb->zb_lsize, zb->zb_psize, 2); 2164ff64c0f7SMatthew Ahrens (void) snprintfrac(pct, NICENUM_BUFLEN, 2165ff64c0f7SMatthew Ahrens 100 * zb->zb_asize, tzb->zb_asize, 2); 216688b7b0f2SMatthew Ahrens 216788b7b0f2SMatthew Ahrens mdb_printf("%6s\t%5s\t%5s\t%5s\t%5s" 216888b7b0f2SMatthew Ahrens "\t%5s\t%6s\t", 216988b7b0f2SMatthew Ahrens csize, lsize, psize, asize, avg, comp, pct); 217088b7b0f2SMatthew Ahrens 217188b7b0f2SMatthew Ahrens if (level == DN_MAX_LEVELS) 217288b7b0f2SMatthew Ahrens mdb_printf("%s\n", typename); 217388b7b0f2SMatthew Ahrens else 217488b7b0f2SMatthew Ahrens mdb_printf(" L%d %s\n", 217588b7b0f2SMatthew Ahrens level, typename); 217688b7b0f2SMatthew Ahrens } 217788b7b0f2SMatthew Ahrens } 217888b7b0f2SMatthew Ahrens 217988b7b0f2SMatthew Ahrens return (DCMD_OK); 218088b7b0f2SMatthew Ahrens } 218188b7b0f2SMatthew Ahrens 21829966ca11SMatthew Ahrens /* ARGSUSED */ 21839966ca11SMatthew Ahrens static int 21849966ca11SMatthew Ahrens reference_cb(uintptr_t addr, const void *ignored, void *arg) 21859966ca11SMatthew Ahrens { 21869966ca11SMatthew Ahrens static int gotid; 21879966ca11SMatthew Ahrens static mdb_ctf_id_t ref_id; 21889966ca11SMatthew Ahrens uintptr_t ref_holder; 21899966ca11SMatthew Ahrens uintptr_t ref_removed; 21909966ca11SMatthew Ahrens uint64_t ref_number; 21919966ca11SMatthew Ahrens boolean_t holder_is_str; 21929966ca11SMatthew Ahrens char holder_str[128]; 21939966ca11SMatthew Ahrens boolean_t removed = (boolean_t)arg; 21949966ca11SMatthew Ahrens 21959966ca11SMatthew Ahrens if (!gotid) { 21969966ca11SMatthew Ahrens if (mdb_ctf_lookup_by_name("struct reference", &ref_id) == -1) { 21979966ca11SMatthew Ahrens mdb_warn("couldn't find struct reference"); 21989966ca11SMatthew Ahrens return (WALK_ERR); 21999966ca11SMatthew Ahrens } 22009966ca11SMatthew Ahrens gotid = TRUE; 22019966ca11SMatthew Ahrens } 22029966ca11SMatthew Ahrens 22039966ca11SMatthew Ahrens if (GETMEMBID(addr, &ref_id, ref_holder, ref_holder) || 22049966ca11SMatthew Ahrens GETMEMBID(addr, &ref_id, ref_removed, ref_removed) || 22059966ca11SMatthew Ahrens GETMEMBID(addr, &ref_id, ref_number, ref_number)) 22069966ca11SMatthew Ahrens return (WALK_ERR); 22079966ca11SMatthew Ahrens 22089966ca11SMatthew Ahrens if (mdb_readstr(holder_str, sizeof (holder_str), ref_holder) != -1) { 22099966ca11SMatthew Ahrens char *cp; 22109966ca11SMatthew Ahrens holder_is_str = B_TRUE; 22119966ca11SMatthew Ahrens for (cp = holder_str; *cp; cp++) { 22129966ca11SMatthew Ahrens if (!isprint(*cp)) { 22139966ca11SMatthew Ahrens holder_is_str = B_FALSE; 22149966ca11SMatthew Ahrens break; 22159966ca11SMatthew Ahrens } 22169966ca11SMatthew Ahrens } 22179966ca11SMatthew Ahrens } else { 22189966ca11SMatthew Ahrens holder_is_str = B_FALSE; 22199966ca11SMatthew Ahrens } 22209966ca11SMatthew Ahrens 22219966ca11SMatthew Ahrens if (removed) 22229966ca11SMatthew Ahrens mdb_printf("removed "); 22239966ca11SMatthew Ahrens mdb_printf("reference "); 22249966ca11SMatthew Ahrens if (ref_number != 1) 22259966ca11SMatthew Ahrens mdb_printf("with count=%llu ", ref_number); 22269966ca11SMatthew Ahrens mdb_printf("with tag %p", (void*)ref_holder); 22279966ca11SMatthew Ahrens if (holder_is_str) 22289966ca11SMatthew Ahrens mdb_printf(" \"%s\"", holder_str); 22299966ca11SMatthew Ahrens mdb_printf(", held at:\n"); 22309966ca11SMatthew Ahrens 22319966ca11SMatthew Ahrens (void) mdb_call_dcmd("whatis", addr, DCMD_ADDRSPEC, 0, NULL); 22329966ca11SMatthew Ahrens 22339966ca11SMatthew Ahrens if (removed) { 22349966ca11SMatthew Ahrens mdb_printf("removed at:\n"); 22359966ca11SMatthew Ahrens (void) mdb_call_dcmd("whatis", ref_removed, 22369966ca11SMatthew Ahrens DCMD_ADDRSPEC, 0, NULL); 22379966ca11SMatthew Ahrens } 22389966ca11SMatthew Ahrens 22399966ca11SMatthew Ahrens mdb_printf("\n"); 22409966ca11SMatthew Ahrens 22419966ca11SMatthew Ahrens return (WALK_NEXT); 22429966ca11SMatthew Ahrens } 22439966ca11SMatthew Ahrens 22449966ca11SMatthew Ahrens /* ARGSUSED */ 22459966ca11SMatthew Ahrens static int 22469966ca11SMatthew Ahrens refcount(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 22479966ca11SMatthew Ahrens { 22489966ca11SMatthew Ahrens uint64_t rc_count, rc_removed_count; 22499966ca11SMatthew Ahrens uintptr_t rc_list, rc_removed; 22509966ca11SMatthew Ahrens static int gotid; 22519966ca11SMatthew Ahrens static mdb_ctf_id_t rc_id; 22529966ca11SMatthew Ahrens ulong_t off; 22539966ca11SMatthew Ahrens 22549966ca11SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) 22559966ca11SMatthew Ahrens return (DCMD_USAGE); 22569966ca11SMatthew Ahrens 22579966ca11SMatthew Ahrens if (!gotid) { 22589966ca11SMatthew Ahrens if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) { 22599966ca11SMatthew Ahrens mdb_warn("couldn't find struct refcount"); 22609966ca11SMatthew Ahrens return (DCMD_ERR); 22619966ca11SMatthew Ahrens } 22629966ca11SMatthew Ahrens gotid = TRUE; 22639966ca11SMatthew Ahrens } 22649966ca11SMatthew Ahrens 22659966ca11SMatthew Ahrens if (GETMEMBID(addr, &rc_id, rc_count, rc_count) || 22669966ca11SMatthew Ahrens GETMEMBID(addr, &rc_id, rc_removed_count, rc_removed_count)) 22679966ca11SMatthew Ahrens return (DCMD_ERR); 22689966ca11SMatthew Ahrens 22699966ca11SMatthew Ahrens mdb_printf("refcount_t at %p has %llu current holds, " 22709966ca11SMatthew Ahrens "%llu recently released holds\n", 22719966ca11SMatthew Ahrens addr, (longlong_t)rc_count, (longlong_t)rc_removed_count); 22729966ca11SMatthew Ahrens 22739966ca11SMatthew Ahrens if (rc_count > 0) 22749966ca11SMatthew Ahrens mdb_printf("current holds:\n"); 22759966ca11SMatthew Ahrens if (mdb_ctf_offsetof(rc_id, "rc_list", &off) == -1) 22769966ca11SMatthew Ahrens return (DCMD_ERR); 22779966ca11SMatthew Ahrens rc_list = addr + off/NBBY; 22789966ca11SMatthew Ahrens mdb_pwalk("list", reference_cb, (void*)B_FALSE, rc_list); 22799966ca11SMatthew Ahrens 22809966ca11SMatthew Ahrens if (rc_removed_count > 0) 22819966ca11SMatthew Ahrens mdb_printf("released holds:\n"); 22829966ca11SMatthew Ahrens if (mdb_ctf_offsetof(rc_id, "rc_removed", &off) == -1) 22839966ca11SMatthew Ahrens return (DCMD_ERR); 22849966ca11SMatthew Ahrens rc_removed = addr + off/NBBY; 22859966ca11SMatthew Ahrens mdb_pwalk("list", reference_cb, (void*)B_TRUE, rc_removed); 22869966ca11SMatthew Ahrens 22879966ca11SMatthew Ahrens return (DCMD_OK); 22889966ca11SMatthew Ahrens } 22899966ca11SMatthew Ahrens 2290ccae0b50Seschrock /* 2291fa9e4066Sahrens * MDB module linkage information: 2292fa9e4066Sahrens * 2293fa9e4066Sahrens * We declare a list of structures describing our dcmds, and a function 2294fa9e4066Sahrens * named _mdb_init to return a pointer to our module information. 2295fa9e4066Sahrens */ 2296fa9e4066Sahrens 2297fa9e4066Sahrens static const mdb_dcmd_t dcmds[] = { 229891ebeef5Sahrens { "arc", "[-bkmg]", "print ARC variables", arc_print }, 2299fa9e4066Sahrens { "blkptr", ":", "print blkptr_t", blkptr }, 2300fa9e4066Sahrens { "dbuf", ":", "print dmu_buf_impl_t", dbuf }, 2301fa9e4066Sahrens { "dbuf_stats", ":", "dbuf stats", dbuf_stats }, 2302fa9e4066Sahrens { "dbufs", 2303503ad85cSMatthew Ahrens "\t[-O objset_t*] [-n objset_name | \"mos\"] " 23043cb34c60Sahrens "[-o object | \"mdn\"] \n" 2305fa9e4066Sahrens "\t[-l level] [-b blkid | \"bonus\"]", 230691ebeef5Sahrens "find dmu_buf_impl_t's that match specified criteria", dbufs }, 2307fa9e4066Sahrens { "abuf_find", "dva_word[0] dva_word[1]", 2308fa9e4066Sahrens "find arc_buf_hdr_t of a specified DVA", 2309fa9e4066Sahrens abuf_find }, 2310fa9e4066Sahrens { "spa", "?[-cv]", "spa_t summary", spa_print }, 2311fa9e4066Sahrens { "spa_config", ":", "print spa_t configuration", spa_print_config }, 2312fa9e4066Sahrens { "spa_verify", ":", "verify spa_t consistency", spa_verify }, 2313fa9e4066Sahrens { "spa_space", ":[-b]", "print spa_t on-disk space usage", spa_space }, 2314fa9e4066Sahrens { "spa_vdevs", ":", "given a spa_t, print vdev summary", spa_vdevs }, 231591ebeef5Sahrens { "vdev", ":[-re]\n" 231691ebeef5Sahrens "\t-r display recursively\n" 2317a3f829aeSBill Moore "\t-e print statistics", 231891ebeef5Sahrens "vdev_t summary", vdev_print }, 2319a3f829aeSBill Moore { "zio", ":[cpr]\n" 2320a3f829aeSBill Moore "\t-c display children\n" 2321a3f829aeSBill Moore "\t-p display parents\n" 2322a3f829aeSBill Moore "\t-r display recursively", 2323a3f829aeSBill Moore "zio_t summary", zio_print }, 2324ccae0b50Seschrock { "zio_state", "?", "print out all zio_t structures on system or " 2325ccae0b50Seschrock "for a particular pool", zio_state }, 232688b7b0f2SMatthew Ahrens { "zfs_blkstats", ":[-v]", 232788b7b0f2SMatthew Ahrens "given a spa_t, print block type stats from last scrub", 232888b7b0f2SMatthew Ahrens zfs_blkstats }, 2329614409b5Sahrens { "zfs_params", "", "print zfs tunable parameters", zfs_params }, 23309966ca11SMatthew Ahrens { "refcount", "", "print refcount_t holders", refcount }, 2331*3f1f8012SMatthew Ahrens { "zap_leaf", "", "print zap_leaf_phys_t", zap_leaf }, 2332fa9e4066Sahrens { NULL } 2333fa9e4066Sahrens }; 2334fa9e4066Sahrens 2335fa9e4066Sahrens static const mdb_walker_t walkers[] = { 2336fa9e4066Sahrens /* 2337fa9e4066Sahrens * In userland, there is no generic provider of list_t walkers, so we 2338fa9e4066Sahrens * need to add it. 2339fa9e4066Sahrens */ 2340fa9e4066Sahrens #ifndef _KERNEL 2341fa9e4066Sahrens { LIST_WALK_NAME, LIST_WALK_DESC, 2342fa9e4066Sahrens list_walk_init, list_walk_step, list_walk_fini }, 2343fa9e4066Sahrens #endif 2344fa9e4066Sahrens { "zms_freelist", "walk ZFS metaslab freelist", 23455f5f7a6fSahrens freelist_walk_init, freelist_walk_step, NULL }, 2346fa9e4066Sahrens { "txg_list", "given any txg_list_t *, walk all entries in all txgs", 23475f5f7a6fSahrens txg_list_walk_init, txg_list_walk_step, NULL }, 2348fa9e4066Sahrens { "txg_list0", "given any txg_list_t *, walk all entries in txg 0", 23495f5f7a6fSahrens txg_list0_walk_init, txg_list_walk_step, NULL }, 2350fa9e4066Sahrens { "txg_list1", "given any txg_list_t *, walk all entries in txg 1", 23515f5f7a6fSahrens txg_list1_walk_init, txg_list_walk_step, NULL }, 2352fa9e4066Sahrens { "txg_list2", "given any txg_list_t *, walk all entries in txg 2", 23535f5f7a6fSahrens txg_list2_walk_init, txg_list_walk_step, NULL }, 2354fa9e4066Sahrens { "txg_list3", "given any txg_list_t *, walk all entries in txg 3", 23555f5f7a6fSahrens txg_list3_walk_init, txg_list_walk_step, NULL }, 2356ccae0b50Seschrock { "zio", "walk all zio structures, optionally for a particular spa_t", 2357ccae0b50Seschrock zio_walk_init, zio_walk_step, NULL }, 2358ccae0b50Seschrock { "zio_root", "walk all root zio_t structures, optionally for a " 2359ccae0b50Seschrock "particular spa_t", 2360ccae0b50Seschrock zio_walk_init, zio_walk_root_step, NULL }, 2361fa9e4066Sahrens { "spa", "walk all spa_t entries in the namespace", 2362fa9e4066Sahrens spa_walk_init, spa_walk_step, NULL }, 23635f5f7a6fSahrens { "metaslab", "given a spa_t *, walk all metaslab_t structures", 23645f5f7a6fSahrens metaslab_walk_init, metaslab_walk_step, NULL }, 2365fa9e4066Sahrens { NULL } 2366fa9e4066Sahrens }; 2367fa9e4066Sahrens 2368fa9e4066Sahrens static const mdb_modinfo_t modinfo = { 2369fa9e4066Sahrens MDB_API_VERSION, dcmds, walkers 2370fa9e4066Sahrens }; 2371fa9e4066Sahrens 2372fa9e4066Sahrens const mdb_modinfo_t * 2373fa9e4066Sahrens _mdb_init(void) 2374fa9e4066Sahrens { 2375fa9e4066Sahrens return (&modinfo); 2376fa9e4066Sahrens } 2377