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Diffstat (limited to 'contrib/opensolaris/cmd/ztest/ztest.c')
| -rw-r--r-- | contrib/opensolaris/cmd/ztest/ztest.c | 3495 |
1 files changed, 0 insertions, 3495 deletions
diff --git a/contrib/opensolaris/cmd/ztest/ztest.c b/contrib/opensolaris/cmd/ztest/ztest.c deleted file mode 100644 index 5d9f028..0000000 --- a/contrib/opensolaris/cmd/ztest/ztest.c +++ /dev/null @@ -1,3495 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License (the "License"). - * You may not use this file except in compliance with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 2007 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -#pragma ident "%Z%%M% %I% %E% SMI" - -/* - * The objective of this program is to provide a DMU/ZAP/SPA stress test - * that runs entirely in userland, is easy to use, and easy to extend. - * - * The overall design of the ztest program is as follows: - * - * (1) For each major functional area (e.g. adding vdevs to a pool, - * creating and destroying datasets, reading and writing objects, etc) - * we have a simple routine to test that functionality. These - * individual routines do not have to do anything "stressful". - * - * (2) We turn these simple functionality tests into a stress test by - * running them all in parallel, with as many threads as desired, - * and spread across as many datasets, objects, and vdevs as desired. - * - * (3) While all this is happening, we inject faults into the pool to - * verify that self-healing data really works. - * - * (4) Every time we open a dataset, we change its checksum and compression - * functions. Thus even individual objects vary from block to block - * in which checksum they use and whether they're compressed. - * - * (5) To verify that we never lose on-disk consistency after a crash, - * we run the entire test in a child of the main process. - * At random times, the child self-immolates with a SIGKILL. - * This is the software equivalent of pulling the power cord. - * The parent then runs the test again, using the existing - * storage pool, as many times as desired. - * - * (6) To verify that we don't have future leaks or temporal incursions, - * many of the functional tests record the transaction group number - * as part of their data. When reading old data, they verify that - * the transaction group number is less than the current, open txg. - * If you add a new test, please do this if applicable. - * - * When run with no arguments, ztest runs for about five minutes and - * produces no output if successful. To get a little bit of information, - * specify -V. To get more information, specify -VV, and so on. - * - * To turn this into an overnight stress test, use -T to specify run time. - * - * You can ask more more vdevs [-v], datasets [-d], or threads [-t] - * to increase the pool capacity, fanout, and overall stress level. - * - * The -N(okill) option will suppress kills, so each child runs to completion. - * This can be useful when you're trying to distinguish temporal incursions - * from plain old race conditions. - */ - -#include <sys/zfs_context.h> -#include <sys/spa.h> -#include <sys/dmu.h> -#include <sys/txg.h> -#include <sys/zap.h> -#include <sys/dmu_traverse.h> -#include <sys/dmu_objset.h> -#include <sys/poll.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/wait.h> -#include <sys/mman.h> -#include <sys/resource.h> -#include <sys/zio.h> -#include <sys/zio_checksum.h> -#include <sys/zio_compress.h> -#include <sys/zil.h> -#include <sys/vdev_impl.h> -#include <sys/spa_impl.h> -#include <sys/dsl_prop.h> -#include <sys/refcount.h> -#include <stdio.h> -#include <stdio_ext.h> -#include <stdlib.h> -#include <unistd.h> -#include <signal.h> -#include <umem.h> -#include <dlfcn.h> -#include <ctype.h> -#include <math.h> -#include <errno.h> -#include <sys/fs/zfs.h> - -static char cmdname[] = "ztest"; -static char *zopt_pool = cmdname; -static char *progname; - -static uint64_t zopt_vdevs = 5; -static uint64_t zopt_vdevtime; -static int zopt_ashift = SPA_MINBLOCKSHIFT; -static int zopt_mirrors = 2; -static int zopt_raidz = 4; -static int zopt_raidz_parity = 1; -static size_t zopt_vdev_size = SPA_MINDEVSIZE; -static int zopt_datasets = 7; -static int zopt_threads = 23; -static uint64_t zopt_passtime = 60; /* 60 seconds */ -static uint64_t zopt_killrate = 70; /* 70% kill rate */ -static int zopt_verbose = 0; -static int zopt_init = 1; -static char *zopt_dir = "/tmp"; -static uint64_t zopt_time = 300; /* 5 minutes */ -static int zopt_maxfaults; - -typedef struct ztest_args { - char *za_pool; - objset_t *za_os; - zilog_t *za_zilog; - thread_t za_thread; - uint64_t za_instance; - uint64_t za_random; - uint64_t za_diroff; - uint64_t za_diroff_shared; - uint64_t za_zil_seq; - hrtime_t za_start; - hrtime_t za_stop; - hrtime_t za_kill; - traverse_handle_t *za_th; -} ztest_args_t; - -typedef void ztest_func_t(ztest_args_t *); - -/* - * Note: these aren't static because we want dladdr() to work. - */ -ztest_func_t ztest_dmu_read_write; -ztest_func_t ztest_dmu_write_parallel; -ztest_func_t ztest_dmu_object_alloc_free; -ztest_func_t ztest_zap; -ztest_func_t ztest_zap_parallel; -ztest_func_t ztest_traverse; -ztest_func_t ztest_dsl_prop_get_set; -ztest_func_t ztest_dmu_objset_create_destroy; -ztest_func_t ztest_dmu_snapshot_create_destroy; -ztest_func_t ztest_spa_create_destroy; -ztest_func_t ztest_fault_inject; -ztest_func_t ztest_vdev_attach_detach; -ztest_func_t ztest_vdev_LUN_growth; -ztest_func_t ztest_vdev_add_remove; -ztest_func_t ztest_scrub; -ztest_func_t ztest_spa_rename; - -typedef struct ztest_info { - ztest_func_t *zi_func; /* test function */ - uint64_t *zi_interval; /* execute every <interval> seconds */ - uint64_t zi_calls; /* per-pass count */ - uint64_t zi_call_time; /* per-pass time */ - uint64_t zi_call_total; /* cumulative total */ - uint64_t zi_call_target; /* target cumulative total */ -} ztest_info_t; - -uint64_t zopt_always = 0; /* all the time */ -uint64_t zopt_often = 1; /* every second */ -uint64_t zopt_sometimes = 10; /* every 10 seconds */ -uint64_t zopt_rarely = 60; /* every 60 seconds */ - -ztest_info_t ztest_info[] = { - { ztest_dmu_read_write, &zopt_always }, - { ztest_dmu_write_parallel, &zopt_always }, - { ztest_dmu_object_alloc_free, &zopt_always }, - { ztest_zap, &zopt_always }, - { ztest_zap_parallel, &zopt_always }, - { ztest_traverse, &zopt_often }, - { ztest_dsl_prop_get_set, &zopt_sometimes }, - { ztest_dmu_objset_create_destroy, &zopt_sometimes }, - { ztest_dmu_snapshot_create_destroy, &zopt_rarely }, - { ztest_spa_create_destroy, &zopt_sometimes }, - { ztest_fault_inject, &zopt_sometimes }, - { ztest_spa_rename, &zopt_rarely }, - { ztest_vdev_attach_detach, &zopt_rarely }, - { ztest_vdev_LUN_growth, &zopt_rarely }, - { ztest_vdev_add_remove, &zopt_vdevtime }, - { ztest_scrub, &zopt_vdevtime }, -}; - -#define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t)) - -#define ZTEST_SYNC_LOCKS 16 - -/* - * Stuff we need to share writably between parent and child. - */ -typedef struct ztest_shared { - mutex_t zs_vdev_lock; - rwlock_t zs_name_lock; - uint64_t zs_vdev_primaries; - uint64_t zs_enospc_count; - hrtime_t zs_start_time; - hrtime_t zs_stop_time; - uint64_t zs_alloc; - uint64_t zs_space; - uint64_t zs_txg; - ztest_info_t zs_info[ZTEST_FUNCS]; - mutex_t zs_sync_lock[ZTEST_SYNC_LOCKS]; - uint64_t zs_seq[ZTEST_SYNC_LOCKS]; -} ztest_shared_t; - -typedef struct ztest_block_tag { - uint64_t bt_objset; - uint64_t bt_object; - uint64_t bt_offset; - uint64_t bt_txg; - uint64_t bt_thread; - uint64_t bt_seq; -} ztest_block_tag_t; - -static char ztest_dev_template[] = "%s/%s.%llua"; -static ztest_shared_t *ztest_shared; - -static int ztest_random_fd; -static int ztest_dump_core = 1; - -extern uint64_t zio_gang_bang; -extern uint16_t zio_zil_fail_shift; - -#define ZTEST_DIROBJ 1 -#define ZTEST_MICROZAP_OBJ 2 -#define ZTEST_FATZAP_OBJ 3 - -#define ZTEST_DIROBJ_BLOCKSIZE (1 << 10) -#define ZTEST_DIRSIZE 256 - -static void usage(boolean_t) __NORETURN; - -/* - * These libumem hooks provide a reasonable set of defaults for the allocator's - * debugging facilities. - */ -const char * -_umem_debug_init() -{ - return ("default,verbose"); /* $UMEM_DEBUG setting */ -} - -const char * -_umem_logging_init(void) -{ - return ("fail,contents"); /* $UMEM_LOGGING setting */ -} - -#define FATAL_MSG_SZ 1024 - -char *fatal_msg; - -static void -fatal(int do_perror, char *message, ...) -{ - va_list args; - int save_errno = errno; - char buf[FATAL_MSG_SZ]; - - (void) fflush(stdout); - - va_start(args, message); - (void) sprintf(buf, "ztest: "); - /* LINTED */ - (void) vsprintf(buf + strlen(buf), message, args); - va_end(args); - if (do_perror) { - (void) snprintf(buf + strlen(buf), FATAL_MSG_SZ - strlen(buf), - ": %s", strerror(save_errno)); - } - (void) fprintf(stderr, "%s\n", buf); - fatal_msg = buf; /* to ease debugging */ - if (ztest_dump_core) - abort(); - exit(3); -} - -static int -str2shift(const char *buf) -{ - const char *ends = "BKMGTPEZ"; - int i; - - if (buf[0] == '\0') - return (0); - for (i = 0; i < strlen(ends); i++) { - if (toupper(buf[0]) == ends[i]) - break; - } - if (i == strlen(ends)) { - (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n", - buf); - usage(B_FALSE); - } - if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0')) { - return (10*i); - } - (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n", buf); - usage(B_FALSE); - /* NOTREACHED */ -} - -static uint64_t -nicenumtoull(const char *buf) -{ - char *end; - uint64_t val; - - val = strtoull(buf, &end, 0); - if (end == buf) { - (void) fprintf(stderr, "ztest: bad numeric value: %s\n", buf); - usage(B_FALSE); - } else if (end[0] == '.') { - double fval = strtod(buf, &end); - fval *= pow(2, str2shift(end)); - if (fval > UINT64_MAX) { - (void) fprintf(stderr, "ztest: value too large: %s\n", - buf); - usage(B_FALSE); - } - val = (uint64_t)fval; - } else { - int shift = str2shift(end); - if (shift >= 64 || (val << shift) >> shift != val) { - (void) fprintf(stderr, "ztest: value too large: %s\n", - buf); - usage(B_FALSE); - } - val <<= shift; - } - return (val); -} - -static void -usage(boolean_t requested) -{ - char nice_vdev_size[10]; - char nice_gang_bang[10]; - FILE *fp = requested ? stdout : stderr; - - nicenum(zopt_vdev_size, nice_vdev_size); - nicenum(zio_gang_bang, nice_gang_bang); - - (void) fprintf(fp, "Usage: %s\n" - "\t[-v vdevs (default: %llu)]\n" - "\t[-s size_of_each_vdev (default: %s)]\n" - "\t[-a alignment_shift (default: %d) (use 0 for random)]\n" - "\t[-m mirror_copies (default: %d)]\n" - "\t[-r raidz_disks (default: %d)]\n" - "\t[-R raidz_parity (default: %d)]\n" - "\t[-d datasets (default: %d)]\n" - "\t[-t threads (default: %d)]\n" - "\t[-g gang_block_threshold (default: %s)]\n" - "\t[-i initialize pool i times (default: %d)]\n" - "\t[-k kill percentage (default: %llu%%)]\n" - "\t[-p pool_name (default: %s)]\n" - "\t[-f file directory for vdev files (default: %s)]\n" - "\t[-V(erbose)] (use multiple times for ever more blather)\n" - "\t[-E(xisting)] (use existing pool instead of creating new one)\n" - "\t[-T time] total run time (default: %llu sec)\n" - "\t[-P passtime] time per pass (default: %llu sec)\n" - "\t[-z zil failure rate (default: fail every 2^%llu allocs)]\n" - "\t[-h] (print help)\n" - "", - cmdname, - (u_longlong_t)zopt_vdevs, /* -v */ - nice_vdev_size, /* -s */ - zopt_ashift, /* -a */ - zopt_mirrors, /* -m */ - zopt_raidz, /* -r */ - zopt_raidz_parity, /* -R */ - zopt_datasets, /* -d */ - zopt_threads, /* -t */ - nice_gang_bang, /* -g */ - zopt_init, /* -i */ - (u_longlong_t)zopt_killrate, /* -k */ - zopt_pool, /* -p */ - zopt_dir, /* -f */ - (u_longlong_t)zopt_time, /* -T */ - (u_longlong_t)zopt_passtime, /* -P */ - (u_longlong_t)zio_zil_fail_shift); /* -z */ - exit(requested ? 0 : 1); -} - -static uint64_t -ztest_random(uint64_t range) -{ - uint64_t r; - - if (range == 0) - return (0); - - if (read(ztest_random_fd, &r, sizeof (r)) != sizeof (r)) - fatal(1, "short read from /dev/urandom"); - - return (r % range); -} - -static void -ztest_record_enospc(char *s) -{ - dprintf("ENOSPC doing: %s\n", s ? s : "<unknown>"); - ztest_shared->zs_enospc_count++; -} - -static void -process_options(int argc, char **argv) -{ - int opt; - uint64_t value; - - /* Remember program name. */ - progname = argv[0]; - - /* By default, test gang blocks for blocks 32K and greater */ - zio_gang_bang = 32 << 10; - - /* Default value, fail every 32nd allocation */ - zio_zil_fail_shift = 5; - - while ((opt = getopt(argc, argv, - "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:z:h")) != EOF) { - value = 0; - switch (opt) { - case 'v': - case 's': - case 'a': - case 'm': - case 'r': - case 'R': - case 'd': - case 't': - case 'g': - case 'i': - case 'k': - case 'T': - case 'P': - case 'z': - value = nicenumtoull(optarg); - } - switch (opt) { - case 'v': - zopt_vdevs = value; - break; - case 's': - zopt_vdev_size = MAX(SPA_MINDEVSIZE, value); - break; - case 'a': - zopt_ashift = value; - break; - case 'm': - zopt_mirrors = value; - break; - case 'r': - zopt_raidz = MAX(1, value); - break; - case 'R': - zopt_raidz_parity = MIN(MAX(value, 1), 2); - break; - case 'd': - zopt_datasets = MAX(1, value); - break; - case 't': - zopt_threads = MAX(1, value); - break; - case 'g': - zio_gang_bang = MAX(SPA_MINBLOCKSIZE << 1, value); - break; - case 'i': - zopt_init = value; - break; - case 'k': - zopt_killrate = value; - break; - case 'p': - zopt_pool = strdup(optarg); - break; - case 'f': - zopt_dir = strdup(optarg); - break; - case 'V': - zopt_verbose++; - break; - case 'E': - zopt_init = 0; - break; - case 'T': - zopt_time = value; - break; - case 'P': - zopt_passtime = MAX(1, value); - break; - case 'z': - zio_zil_fail_shift = MIN(value, 16); - break; - case 'h': - usage(B_TRUE); - break; - case '?': - default: - usage(B_FALSE); - break; - } - } - - zopt_raidz_parity = MIN(zopt_raidz_parity, zopt_raidz - 1); - - zopt_vdevtime = (zopt_vdevs > 0 ? zopt_time / zopt_vdevs : UINT64_MAX); - zopt_maxfaults = MAX(zopt_mirrors, 1) * (zopt_raidz_parity + 1) - 1; -} - -static uint64_t -ztest_get_ashift(void) -{ - if (zopt_ashift == 0) - return (SPA_MINBLOCKSHIFT + ztest_random(3)); - return (zopt_ashift); -} - -static nvlist_t * -make_vdev_file(size_t size) -{ - char dev_name[MAXPATHLEN]; - uint64_t vdev; - uint64_t ashift = ztest_get_ashift(); - int fd; - nvlist_t *file; - - if (size == 0) { - (void) snprintf(dev_name, sizeof (dev_name), "%s", - "/dev/bogus"); - } else { - vdev = ztest_shared->zs_vdev_primaries++; - (void) sprintf(dev_name, ztest_dev_template, - zopt_dir, zopt_pool, vdev); - - fd = open(dev_name, O_RDWR | O_CREAT | O_TRUNC, 0666); - if (fd == -1) - fatal(1, "can't open %s", dev_name); - if (ftruncate(fd, size) != 0) - fatal(1, "can't ftruncate %s", dev_name); - (void) close(fd); - } - - VERIFY(nvlist_alloc(&file, NV_UNIQUE_NAME, 0) == 0); - VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_TYPE, VDEV_TYPE_FILE) == 0); - VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_PATH, dev_name) == 0); - VERIFY(nvlist_add_uint64(file, ZPOOL_CONFIG_ASHIFT, ashift) == 0); - - return (file); -} - -static nvlist_t * -make_vdev_raidz(size_t size, int r) -{ - nvlist_t *raidz, **child; - int c; - - if (r < 2) - return (make_vdev_file(size)); - - child = umem_alloc(r * sizeof (nvlist_t *), UMEM_NOFAIL); - - for (c = 0; c < r; c++) - child[c] = make_vdev_file(size); - - VERIFY(nvlist_alloc(&raidz, NV_UNIQUE_NAME, 0) == 0); - VERIFY(nvlist_add_string(raidz, ZPOOL_CONFIG_TYPE, - VDEV_TYPE_RAIDZ) == 0); - VERIFY(nvlist_add_uint64(raidz, ZPOOL_CONFIG_NPARITY, - zopt_raidz_parity) == 0); - VERIFY(nvlist_add_nvlist_array(raidz, ZPOOL_CONFIG_CHILDREN, - child, r) == 0); - - for (c = 0; c < r; c++) - nvlist_free(child[c]); - - umem_free(child, r * sizeof (nvlist_t *)); - - return (raidz); -} - -static nvlist_t * -make_vdev_mirror(size_t size, int r, int m) -{ - nvlist_t *mirror, **child; - int c; - - if (m < 1) - return (make_vdev_raidz(size, r)); - - child = umem_alloc(m * sizeof (nvlist_t *), UMEM_NOFAIL); - - for (c = 0; c < m; c++) - child[c] = make_vdev_raidz(size, r); - - VERIFY(nvlist_alloc(&mirror, NV_UNIQUE_NAME, 0) == 0); - VERIFY(nvlist_add_string(mirror, ZPOOL_CONFIG_TYPE, - VDEV_TYPE_MIRROR) == 0); - VERIFY(nvlist_add_nvlist_array(mirror, ZPOOL_CONFIG_CHILDREN, - child, m) == 0); - - for (c = 0; c < m; c++) - nvlist_free(child[c]); - - umem_free(child, m * sizeof (nvlist_t *)); - - return (mirror); -} - -static nvlist_t * -make_vdev_root(size_t size, int r, int m, int t) -{ - nvlist_t *root, **child; - int c; - - ASSERT(t > 0); - - child = umem_alloc(t * sizeof (nvlist_t *), UMEM_NOFAIL); - - for (c = 0; c < t; c++) - child[c] = make_vdev_mirror(size, r, m); - - VERIFY(nvlist_alloc(&root, NV_UNIQUE_NAME, 0) == 0); - VERIFY(nvlist_add_string(root, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) == 0); - VERIFY(nvlist_add_nvlist_array(root, ZPOOL_CONFIG_CHILDREN, - child, t) == 0); - - for (c = 0; c < t; c++) - nvlist_free(child[c]); - - umem_free(child, t * sizeof (nvlist_t *)); - - return (root); -} - -static void -ztest_set_random_blocksize(objset_t *os, uint64_t object, dmu_tx_t *tx) -{ - int bs = SPA_MINBLOCKSHIFT + - ztest_random(SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1); - int ibs = DN_MIN_INDBLKSHIFT + - ztest_random(DN_MAX_INDBLKSHIFT - DN_MIN_INDBLKSHIFT + 1); - int error; - - error = dmu_object_set_blocksize(os, object, 1ULL << bs, ibs, tx); - if (error) { - char osname[300]; - dmu_objset_name(os, osname); - fatal(0, "dmu_object_set_blocksize('%s', %llu, %d, %d) = %d", - osname, object, 1 << bs, ibs, error); - } -} - -static uint8_t -ztest_random_checksum(void) -{ - uint8_t checksum; - - do { - checksum = ztest_random(ZIO_CHECKSUM_FUNCTIONS); - } while (zio_checksum_table[checksum].ci_zbt); - - if (checksum == ZIO_CHECKSUM_OFF) - checksum = ZIO_CHECKSUM_ON; - - return (checksum); -} - -static uint8_t -ztest_random_compress(void) -{ - return ((uint8_t)ztest_random(ZIO_COMPRESS_FUNCTIONS)); -} - -typedef struct ztest_replay { - objset_t *zr_os; - uint64_t zr_assign; -} ztest_replay_t; - -static int -ztest_replay_create(ztest_replay_t *zr, lr_create_t *lr, boolean_t byteswap) -{ - objset_t *os = zr->zr_os; - dmu_tx_t *tx; - int error; - - if (byteswap) - byteswap_uint64_array(lr, sizeof (*lr)); - - tx = dmu_tx_create(os); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - error = dmu_tx_assign(tx, zr->zr_assign); - if (error) { - dmu_tx_abort(tx); - return (error); - } - - error = dmu_object_claim(os, lr->lr_doid, lr->lr_mode, 0, - DMU_OT_NONE, 0, tx); - ASSERT3U(error, ==, 0); - dmu_tx_commit(tx); - - if (zopt_verbose >= 5) { - char osname[MAXNAMELEN]; - dmu_objset_name(os, osname); - (void) printf("replay create of %s object %llu" - " in txg %llu = %d\n", - osname, (u_longlong_t)lr->lr_doid, - (u_longlong_t)zr->zr_assign, error); - } - - return (error); -} - -static int -ztest_replay_remove(ztest_replay_t *zr, lr_remove_t *lr, boolean_t byteswap) -{ - objset_t *os = zr->zr_os; - dmu_tx_t *tx; - int error; - - if (byteswap) - byteswap_uint64_array(lr, sizeof (*lr)); - - tx = dmu_tx_create(os); - dmu_tx_hold_free(tx, lr->lr_doid, 0, DMU_OBJECT_END); - error = dmu_tx_assign(tx, zr->zr_assign); - if (error) { - dmu_tx_abort(tx); - return (error); - } - - error = dmu_object_free(os, lr->lr_doid, tx); - dmu_tx_commit(tx); - - return (error); -} - -zil_replay_func_t *ztest_replay_vector[TX_MAX_TYPE] = { - NULL, /* 0 no such transaction type */ - ztest_replay_create, /* TX_CREATE */ - NULL, /* TX_MKDIR */ - NULL, /* TX_MKXATTR */ - NULL, /* TX_SYMLINK */ - ztest_replay_remove, /* TX_REMOVE */ - NULL, /* TX_RMDIR */ - NULL, /* TX_LINK */ - NULL, /* TX_RENAME */ - NULL, /* TX_WRITE */ - NULL, /* TX_TRUNCATE */ - NULL, /* TX_SETATTR */ - NULL, /* TX_ACL */ -}; - -/* - * Verify that we can't destroy an active pool, create an existing pool, - * or create a pool with a bad vdev spec. - */ -void -ztest_spa_create_destroy(ztest_args_t *za) -{ - int error; - spa_t *spa; - nvlist_t *nvroot; - - /* - * Attempt to create using a bad file. - */ - nvroot = make_vdev_root(0, 0, 0, 1); - error = spa_create("ztest_bad_file", nvroot, NULL); - nvlist_free(nvroot); - if (error != ENOENT) - fatal(0, "spa_create(bad_file) = %d", error); - - /* - * Attempt to create using a bad mirror. - */ - nvroot = make_vdev_root(0, 0, 2, 1); - error = spa_create("ztest_bad_mirror", nvroot, NULL); - nvlist_free(nvroot); - if (error != ENOENT) - fatal(0, "spa_create(bad_mirror) = %d", error); - - /* - * Attempt to create an existing pool. It shouldn't matter - * what's in the nvroot; we should fail with EEXIST. - */ - (void) rw_rdlock(&ztest_shared->zs_name_lock); - nvroot = make_vdev_root(0, 0, 0, 1); - error = spa_create(za->za_pool, nvroot, NULL); - nvlist_free(nvroot); - if (error != EEXIST) - fatal(0, "spa_create(whatever) = %d", error); - - error = spa_open(za->za_pool, &spa, FTAG); - if (error) - fatal(0, "spa_open() = %d", error); - - error = spa_destroy(za->za_pool); - if (error != EBUSY) - fatal(0, "spa_destroy() = %d", error); - - spa_close(spa, FTAG); - (void) rw_unlock(&ztest_shared->zs_name_lock); -} - -/* - * Verify that vdev_add() works as expected. - */ -void -ztest_vdev_add_remove(ztest_args_t *za) -{ - spa_t *spa = dmu_objset_spa(za->za_os); - uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz; - nvlist_t *nvroot; - int error; - - if (zopt_verbose >= 6) - (void) printf("adding vdev\n"); - - (void) mutex_lock(&ztest_shared->zs_vdev_lock); - - spa_config_enter(spa, RW_READER, FTAG); - - ztest_shared->zs_vdev_primaries = - spa->spa_root_vdev->vdev_children * leaves; - - spa_config_exit(spa, FTAG); - - nvroot = make_vdev_root(zopt_vdev_size, zopt_raidz, zopt_mirrors, 1); - error = spa_vdev_add(spa, nvroot); - nvlist_free(nvroot); - - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); - - if (error == ENOSPC) - ztest_record_enospc("spa_vdev_add"); - else if (error != 0) - fatal(0, "spa_vdev_add() = %d", error); - - if (zopt_verbose >= 6) - (void) printf("spa_vdev_add = %d, as expected\n", error); -} - -static vdev_t * -vdev_lookup_by_path(vdev_t *vd, const char *path) -{ - int c; - vdev_t *mvd; - - if (vd->vdev_path != NULL) { - if (vd->vdev_wholedisk == 1) { - /* - * For whole disks, the internal path has 's0', but the - * path passed in by the user doesn't. - */ - if (strlen(path) == strlen(vd->vdev_path) - 2 && - strncmp(path, vd->vdev_path, strlen(path)) == 0) - return (vd); - } else if (strcmp(path, vd->vdev_path) == 0) { - return (vd); - } - } - - for (c = 0; c < vd->vdev_children; c++) - if ((mvd = vdev_lookup_by_path(vd->vdev_child[c], path)) != - NULL) - return (mvd); - - return (NULL); -} - -/* - * Verify that we can attach and detach devices. - */ -void -ztest_vdev_attach_detach(ztest_args_t *za) -{ - spa_t *spa = dmu_objset_spa(za->za_os); - vdev_t *rvd = spa->spa_root_vdev; - vdev_t *oldvd, *newvd, *pvd; - nvlist_t *root, *file; - uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz; - uint64_t leaf, top; - uint64_t ashift = ztest_get_ashift(); - size_t oldsize, newsize; - char oldpath[MAXPATHLEN], newpath[MAXPATHLEN]; - int replacing; - int error, expected_error; - int fd; - - (void) mutex_lock(&ztest_shared->zs_vdev_lock); - - spa_config_enter(spa, RW_READER, FTAG); - - /* - * Decide whether to do an attach or a replace. - */ - replacing = ztest_random(2); - - /* - * Pick a random top-level vdev. - */ - top = ztest_random(rvd->vdev_children); - - /* - * Pick a random leaf within it. - */ - leaf = ztest_random(leaves); - - /* - * Generate the path to this leaf. The filename will end with 'a'. - * We'll alternate replacements with a filename that ends with 'b'. - */ - (void) snprintf(oldpath, sizeof (oldpath), - ztest_dev_template, zopt_dir, zopt_pool, top * leaves + leaf); - - bcopy(oldpath, newpath, MAXPATHLEN); - - /* - * If the 'a' file isn't part of the pool, the 'b' file must be. - */ - if (vdev_lookup_by_path(rvd, oldpath) == NULL) - oldpath[strlen(oldpath) - 1] = 'b'; - else - newpath[strlen(newpath) - 1] = 'b'; - - /* - * Now oldpath represents something that's already in the pool, - * and newpath is the thing we'll try to attach. - */ - oldvd = vdev_lookup_by_path(rvd, oldpath); - newvd = vdev_lookup_by_path(rvd, newpath); - ASSERT(oldvd != NULL); - pvd = oldvd->vdev_parent; - - /* - * Make newsize a little bigger or smaller than oldsize. - * If it's smaller, the attach should fail. - * If it's larger, and we're doing a replace, - * we should get dynamic LUN growth when we're done. - */ - oldsize = vdev_get_rsize(oldvd); - newsize = 10 * oldsize / (9 + ztest_random(3)); - - /* - * If pvd is not a mirror or root, the attach should fail with ENOTSUP, - * unless it's a replace; in that case any non-replacing parent is OK. - * - * If newvd is already part of the pool, it should fail with EBUSY. - * - * If newvd is too small, it should fail with EOVERFLOW. - */ - if (newvd != NULL) - expected_error = EBUSY; - else if (pvd->vdev_ops != &vdev_mirror_ops && - pvd->vdev_ops != &vdev_root_ops && - (!replacing || pvd->vdev_ops == &vdev_replacing_ops)) - expected_error = ENOTSUP; - else if (newsize < oldsize) - expected_error = EOVERFLOW; - else if (ashift > oldvd->vdev_top->vdev_ashift) - expected_error = EDOM; - else - expected_error = 0; - - /* - * If newvd isn't already part of the pool, create it. - */ - if (newvd == NULL) { - fd = open(newpath, O_RDWR | O_CREAT | O_TRUNC, 0666); - if (fd == -1) - fatal(1, "can't open %s", newpath); - if (ftruncate(fd, newsize) != 0) - fatal(1, "can't ftruncate %s", newpath); - (void) close(fd); - } - - spa_config_exit(spa, FTAG); - - /* - * Build the nvlist describing newpath. - */ - VERIFY(nvlist_alloc(&file, NV_UNIQUE_NAME, 0) == 0); - VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_TYPE, VDEV_TYPE_FILE) == 0); - VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_PATH, newpath) == 0); - VERIFY(nvlist_add_uint64(file, ZPOOL_CONFIG_ASHIFT, ashift) == 0); - - VERIFY(nvlist_alloc(&root, NV_UNIQUE_NAME, 0) == 0); - VERIFY(nvlist_add_string(root, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) == 0); - VERIFY(nvlist_add_nvlist_array(root, ZPOOL_CONFIG_CHILDREN, - &file, 1) == 0); - - error = spa_vdev_attach(spa, oldvd->vdev_guid, root, replacing); - - nvlist_free(file); - nvlist_free(root); - - /* - * If our parent was the replacing vdev, but the replace completed, - * then instead of failing with ENOTSUP we may either succeed, - * fail with ENODEV, or fail with EOVERFLOW. - */ - if (expected_error == ENOTSUP && - (error == 0 || error == ENODEV || error == EOVERFLOW)) - expected_error = error; - - /* - * If someone grew the LUN, the replacement may be too small. - */ - if (error == EOVERFLOW) - expected_error = error; - - if (error != expected_error) { - fatal(0, "attach (%s, %s, %d) returned %d, expected %d", - oldpath, newpath, replacing, error, expected_error); - } - - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); -} - -/* - * Verify that dynamic LUN growth works as expected. - */ -/* ARGSUSED */ -void -ztest_vdev_LUN_growth(ztest_args_t *za) -{ - spa_t *spa = dmu_objset_spa(za->za_os); - char dev_name[MAXPATHLEN]; - uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz; - uint64_t vdev; - size_t fsize; - int fd; - - (void) mutex_lock(&ztest_shared->zs_vdev_lock); - - /* - * Pick a random leaf vdev. - */ - spa_config_enter(spa, RW_READER, FTAG); - vdev = ztest_random(spa->spa_root_vdev->vdev_children * leaves); - spa_config_exit(spa, FTAG); - - (void) sprintf(dev_name, ztest_dev_template, zopt_dir, zopt_pool, vdev); - - if ((fd = open(dev_name, O_RDWR)) != -1) { - /* - * Determine the size. - */ - fsize = lseek(fd, 0, SEEK_END); - - /* - * If it's less than 2x the original size, grow by around 3%. - */ - if (fsize < 2 * zopt_vdev_size) { - size_t newsize = fsize + ztest_random(fsize / 32); - (void) ftruncate(fd, newsize); - if (zopt_verbose >= 6) { - (void) printf("%s grew from %lu to %lu bytes\n", - dev_name, (ulong_t)fsize, (ulong_t)newsize); - } - } - (void) close(fd); - } - - (void) mutex_unlock(&ztest_shared->zs_vdev_lock); -} - -/* ARGSUSED */ -static void -ztest_create_cb(objset_t *os, void *arg, dmu_tx_t *tx) -{ - /* - * Create the directory object. - */ - VERIFY(dmu_object_claim(os, ZTEST_DIROBJ, - DMU_OT_UINT64_OTHER, ZTEST_DIROBJ_BLOCKSIZE, - DMU_OT_UINT64_OTHER, sizeof (ztest_block_tag_t), tx) == 0); - - VERIFY(zap_create_claim(os, ZTEST_MICROZAP_OBJ, - DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0); - - VERIFY(zap_create_claim(os, ZTEST_FATZAP_OBJ, - DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0); -} - -/* ARGSUSED */ -static int -ztest_destroy_cb(char *name, void *arg) -{ - objset_t *os; - dmu_object_info_t doi; - int error; - - /* - * Verify that the dataset contains a directory object. - */ - error = dmu_objset_open(name, DMU_OST_OTHER, - DS_MODE_STANDARD | DS_MODE_READONLY, &os); - ASSERT3U(error, ==, 0); - error = dmu_object_info(os, ZTEST_DIROBJ, &doi); - if (error != ENOENT) { - /* We could have crashed in the middle of destroying it */ - ASSERT3U(error, ==, 0); - ASSERT3U(doi.doi_type, ==, DMU_OT_UINT64_OTHER); - ASSERT3S(doi.doi_physical_blks, >=, 0); - } - dmu_objset_close(os); - - /* - * Destroy the dataset. - */ - error = dmu_objset_destroy(name); - ASSERT3U(error, ==, 0); - return (0); -} - -/* - * Verify that dmu_objset_{create,destroy,open,close} work as expected. - */ -static uint64_t -ztest_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t object, int mode) -{ - itx_t *itx; - lr_create_t *lr; - size_t namesize; - char name[24]; - - (void) sprintf(name, "ZOBJ_%llu", (u_longlong_t)object); - namesize = strlen(name) + 1; - - itx = zil_itx_create(TX_CREATE, sizeof (*lr) + namesize + - ztest_random(ZIL_MAX_BLKSZ)); - lr = (lr_create_t *)&itx->itx_lr; - bzero(lr + 1, lr->lr_common.lrc_reclen - sizeof (*lr)); - lr->lr_doid = object; - lr->lr_foid = 0; - lr->lr_mode = mode; - lr->lr_uid = 0; - lr->lr_gid = 0; - lr->lr_gen = dmu_tx_get_txg(tx); - lr->lr_crtime[0] = time(NULL); - lr->lr_crtime[1] = 0; - lr->lr_rdev = 0; - bcopy(name, (char *)(lr + 1), namesize); - - return (zil_itx_assign(zilog, itx, tx)); -} - -void -ztest_dmu_objset_create_destroy(ztest_args_t *za) -{ - int error; - objset_t *os; - char name[100]; - int mode, basemode, expected_error; - zilog_t *zilog; - uint64_t seq; - uint64_t objects; - ztest_replay_t zr; - - (void) rw_rdlock(&ztest_shared->zs_name_lock); - (void) snprintf(name, 100, "%s/%s_temp_%llu", za->za_pool, za->za_pool, - (u_longlong_t)za->za_instance); - - basemode = DS_MODE_LEVEL(za->za_instance); - if (basemode == DS_MODE_NONE) - basemode++; - - /* - * If this dataset exists from a previous run, process its replay log - * half of the time. If we don't replay it, then dmu_objset_destroy() - * (invoked from ztest_destroy_cb() below) should just throw it away. - */ - if (ztest_random(2) == 0 && - dmu_objset_open(name, DMU_OST_OTHER, DS_MODE_PRIMARY, &os) == 0) { - zr.zr_os = os; - zil_replay(os, &zr, &zr.zr_assign, ztest_replay_vector); - dmu_objset_close(os); - } - - /* - * There may be an old instance of the dataset we're about to - * create lying around from a previous run. If so, destroy it - * and all of its snapshots. - */ - (void) dmu_objset_find(name, ztest_destroy_cb, NULL, - DS_FIND_CHILDREN | DS_FIND_SNAPSHOTS); - - /* - * Verify that the destroyed dataset is no longer in the namespace. - */ - error = dmu_objset_open(name, DMU_OST_OTHER, basemode, &os); - if (error != ENOENT) - fatal(1, "dmu_objset_open(%s) found destroyed dataset %p", - name, os); - - /* - * Verify that we can create a new dataset. - */ - error = dmu_objset_create(name, DMU_OST_OTHER, NULL, ztest_create_cb, - NULL); - if (error) { - if (error == ENOSPC) { - ztest_record_enospc("dmu_objset_create"); - (void) rw_unlock(&ztest_shared->zs_name_lock); - return; - } - fatal(0, "dmu_objset_create(%s) = %d", name, error); - } - - error = dmu_objset_open(name, DMU_OST_OTHER, basemode, &os); - if (error) { - fatal(0, "dmu_objset_open(%s) = %d", name, error); - } - - /* - * Open the intent log for it. - */ - zilog = zil_open(os, NULL); - - /* - * Put a random number of objects in there. - */ - objects = ztest_random(20); - seq = 0; - while (objects-- != 0) { - uint64_t object; - dmu_tx_t *tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, sizeof (name)); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - dmu_tx_abort(tx); - } else { - object = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - ztest_set_random_blocksize(os, object, tx); - seq = ztest_log_create(zilog, tx, object, - DMU_OT_UINT64_OTHER); - dmu_write(os, object, 0, sizeof (name), name, tx); - dmu_tx_commit(tx); - } - if (ztest_random(5) == 0) { - zil_commit(zilog, seq, object); - } - if (ztest_random(100) == 0) { - error = zil_suspend(zilog); - if (error == 0) { - zil_resume(zilog); - } - } - } - - /* - * Verify that we cannot create an existing dataset. - */ - error = dmu_objset_create(name, DMU_OST_OTHER, NULL, NULL, NULL); - if (error != EEXIST) - fatal(0, "created existing dataset, error = %d", error); - - /* - * Verify that multiple dataset opens are allowed, but only when - * the new access mode is compatible with the base mode. - * We use a mixture of typed and typeless opens, and when the - * open succeeds, verify that the discovered type is correct. - */ - for (mode = DS_MODE_STANDARD; mode < DS_MODE_LEVELS; mode++) { - objset_t *os2; - error = dmu_objset_open(name, DMU_OST_OTHER, mode, &os2); - expected_error = (basemode + mode < DS_MODE_LEVELS) ? 0 : EBUSY; - if (error != expected_error) - fatal(0, "dmu_objset_open('%s') = %d, expected %d", - name, error, expected_error); - if (error == 0) - dmu_objset_close(os2); - } - - zil_close(zilog); - dmu_objset_close(os); - - error = dmu_objset_destroy(name); - if (error) - fatal(0, "dmu_objset_destroy(%s) = %d", name, error); - - (void) rw_unlock(&ztest_shared->zs_name_lock); -} - -/* - * Verify that dmu_snapshot_{create,destroy,open,close} work as expected. - */ -void -ztest_dmu_snapshot_create_destroy(ztest_args_t *za) -{ - int error; - objset_t *os = za->za_os; - char snapname[100]; - char osname[MAXNAMELEN]; - - (void) rw_rdlock(&ztest_shared->zs_name_lock); - dmu_objset_name(os, osname); - (void) snprintf(snapname, 100, "%s@%llu", osname, - (u_longlong_t)za->za_instance); - - error = dmu_objset_destroy(snapname); - if (error != 0 && error != ENOENT) - fatal(0, "dmu_objset_destroy() = %d", error); - error = dmu_objset_snapshot(osname, strchr(snapname, '@')+1, FALSE); - if (error == ENOSPC) - ztest_record_enospc("dmu_take_snapshot"); - else if (error != 0 && error != EEXIST) - fatal(0, "dmu_take_snapshot() = %d", error); - (void) rw_unlock(&ztest_shared->zs_name_lock); -} - -#define ZTEST_TRAVERSE_BLOCKS 1000 - -static int -ztest_blk_cb(traverse_blk_cache_t *bc, spa_t *spa, void *arg) -{ - ztest_args_t *za = arg; - zbookmark_t *zb = &bc->bc_bookmark; - blkptr_t *bp = &bc->bc_blkptr; - dnode_phys_t *dnp = bc->bc_dnode; - traverse_handle_t *th = za->za_th; - uint64_t size = BP_GET_LSIZE(bp); - - /* - * Level -1 indicates the objset_phys_t or something in its intent log. - */ - if (zb->zb_level == -1) { - if (BP_GET_TYPE(bp) == DMU_OT_OBJSET) { - ASSERT3U(zb->zb_object, ==, 0); - ASSERT3U(zb->zb_blkid, ==, 0); - ASSERT3U(size, ==, sizeof (objset_phys_t)); - za->za_zil_seq = 0; - } else if (BP_GET_TYPE(bp) == DMU_OT_INTENT_LOG) { - ASSERT3U(zb->zb_object, ==, 0); - ASSERT3U(zb->zb_blkid, >, za->za_zil_seq); - za->za_zil_seq = zb->zb_blkid; - } else { - ASSERT3U(zb->zb_object, !=, 0); /* lr_write_t */ - } - - return (0); - } - - ASSERT(dnp != NULL); - - if (bc->bc_errno) - return (ERESTART); - - /* - * Once in a while, abort the traverse. We only do this to odd - * instance numbers to ensure that even ones can run to completion. - */ - if ((za->za_instance & 1) && ztest_random(10000) == 0) - return (EINTR); - - if (bp->blk_birth == 0) { - ASSERT(th->th_advance & ADVANCE_HOLES); - return (0); - } - - if (zb->zb_level == 0 && !(th->th_advance & ADVANCE_DATA) && - bc == &th->th_cache[ZB_DN_CACHE][0]) { - ASSERT(bc->bc_data == NULL); - return (0); - } - - ASSERT(bc->bc_data != NULL); - - /* - * This is an expensive question, so don't ask it too often. - */ - if (((za->za_random ^ th->th_callbacks) & 0xff) == 0) { - void *xbuf = umem_alloc(size, UMEM_NOFAIL); - if (arc_tryread(spa, bp, xbuf) == 0) { - ASSERT(bcmp(bc->bc_data, xbuf, size) == 0); - } - umem_free(xbuf, size); - } - - if (zb->zb_level > 0) { - ASSERT3U(size, ==, 1ULL << dnp->dn_indblkshift); - return (0); - } - - ASSERT(zb->zb_level == 0); - ASSERT3U(size, ==, dnp->dn_datablkszsec << DEV_BSHIFT); - - return (0); -} - -/* - * Verify that live pool traversal works. - */ -void -ztest_traverse(ztest_args_t *za) -{ - spa_t *spa = dmu_objset_spa(za->za_os); - traverse_handle_t *th = za->za_th; - int rc, advance; - uint64_t cbstart, cblimit; - - if (th == NULL) { - advance = 0; - - if (ztest_random(2) == 0) - advance |= ADVANCE_PRE; - - if (ztest_random(2) == 0) - advance |= ADVANCE_PRUNE; - - if (ztest_random(2) == 0) - advance |= ADVANCE_DATA; - - if (ztest_random(2) == 0) - advance |= ADVANCE_HOLES; - - if (ztest_random(2) == 0) - advance |= ADVANCE_ZIL; - - th = za->za_th = traverse_init(spa, ztest_blk_cb, za, advance, - ZIO_FLAG_CANFAIL); - - traverse_add_pool(th, 0, -1ULL); - } - - advance = th->th_advance; - cbstart = th->th_callbacks; - cblimit = cbstart + ((advance & ADVANCE_DATA) ? 100 : 1000); - - while ((rc = traverse_more(th)) == EAGAIN && th->th_callbacks < cblimit) - continue; - - if (zopt_verbose >= 5) - (void) printf("traverse %s%s%s%s %llu blocks to " - "<%llu, %llu, %lld, %llx>%s\n", - (advance & ADVANCE_PRE) ? "pre" : "post", - (advance & ADVANCE_PRUNE) ? "|prune" : "", - (advance & ADVANCE_DATA) ? "|data" : "", - (advance & ADVANCE_HOLES) ? "|holes" : "", - (u_longlong_t)(th->th_callbacks - cbstart), - (u_longlong_t)th->th_lastcb.zb_objset, - (u_longlong_t)th->th_lastcb.zb_object, - (u_longlong_t)th->th_lastcb.zb_level, - (u_longlong_t)th->th_lastcb.zb_blkid, - rc == 0 ? " [done]" : - rc == EINTR ? " [aborted]" : - rc == EAGAIN ? "" : - strerror(rc)); - - if (rc != EAGAIN) { - if (rc != 0 && rc != EINTR) - fatal(0, "traverse_more(%p) = %d", th, rc); - traverse_fini(th); - za->za_th = NULL; - } -} - -/* - * Verify that dmu_object_{alloc,free} work as expected. - */ -void -ztest_dmu_object_alloc_free(ztest_args_t *za) -{ - objset_t *os = za->za_os; - dmu_buf_t *db; - dmu_tx_t *tx; - uint64_t batchobj, object, batchsize, endoff, temp; - int b, c, error, bonuslen; - dmu_object_info_t doi; - char osname[MAXNAMELEN]; - - dmu_objset_name(os, osname); - - endoff = -8ULL; - batchsize = 2; - - /* - * Create a batch object if necessary, and record it in the directory. - */ - VERIFY(0 == dmu_read(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t), &batchobj)); - if (batchobj == 0) { - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t)); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create a batch object"); - dmu_tx_abort(tx); - return; - } - batchobj = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - ztest_set_random_blocksize(os, batchobj, tx); - dmu_write(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t), &batchobj, tx); - dmu_tx_commit(tx); - } - - /* - * Destroy the previous batch of objects. - */ - for (b = 0; b < batchsize; b++) { - VERIFY(0 == dmu_read(os, batchobj, b * sizeof (uint64_t), - sizeof (uint64_t), &object)); - if (object == 0) - continue; - /* - * Read and validate contents. - * We expect the nth byte of the bonus buffer to be n. - */ - VERIFY(0 == dmu_bonus_hold(os, object, FTAG, &db)); - - dmu_object_info_from_db(db, &doi); - ASSERT(doi.doi_type == DMU_OT_UINT64_OTHER); - ASSERT(doi.doi_bonus_type == DMU_OT_PLAIN_OTHER); - ASSERT3S(doi.doi_physical_blks, >=, 0); - - bonuslen = db->db_size; - - for (c = 0; c < bonuslen; c++) { - if (((uint8_t *)db->db_data)[c] != - (uint8_t)(c + bonuslen)) { - fatal(0, - "bad bonus: %s, obj %llu, off %d: %u != %u", - osname, object, c, - ((uint8_t *)db->db_data)[c], - (uint8_t)(c + bonuslen)); - } - } - - dmu_buf_rele(db, FTAG); - - /* - * We expect the word at endoff to be our object number. - */ - VERIFY(0 == dmu_read(os, object, endoff, - sizeof (uint64_t), &temp)); - - if (temp != object) { - fatal(0, "bad data in %s, got %llu, expected %llu", - osname, temp, object); - } - - /* - * Destroy old object and clear batch entry. - */ - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, batchobj, - b * sizeof (uint64_t), sizeof (uint64_t)); - dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("free object"); - dmu_tx_abort(tx); - return; - } - error = dmu_object_free(os, object, tx); - if (error) { - fatal(0, "dmu_object_free('%s', %llu) = %d", - osname, object, error); - } - object = 0; - - dmu_object_set_checksum(os, batchobj, - ztest_random_checksum(), tx); - dmu_object_set_compress(os, batchobj, - ztest_random_compress(), tx); - - dmu_write(os, batchobj, b * sizeof (uint64_t), - sizeof (uint64_t), &object, tx); - - dmu_tx_commit(tx); - } - - /* - * Before creating the new batch of objects, generate a bunch of churn. - */ - for (b = ztest_random(100); b > 0; b--) { - tx = dmu_tx_create(os); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("churn objects"); - dmu_tx_abort(tx); - return; - } - object = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - ztest_set_random_blocksize(os, object, tx); - error = dmu_object_free(os, object, tx); - if (error) { - fatal(0, "dmu_object_free('%s', %llu) = %d", - osname, object, error); - } - dmu_tx_commit(tx); - } - - /* - * Create a new batch of objects with randomly chosen - * blocksizes and record them in the batch directory. - */ - for (b = 0; b < batchsize; b++) { - uint32_t va_blksize; - u_longlong_t va_nblocks; - - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, batchobj, b * sizeof (uint64_t), - sizeof (uint64_t)); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - dmu_tx_hold_write(tx, DMU_NEW_OBJECT, endoff, - sizeof (uint64_t)); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create batchobj"); - dmu_tx_abort(tx); - return; - } - bonuslen = (int)ztest_random(dmu_bonus_max()) + 1; - - object = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_PLAIN_OTHER, bonuslen, tx); - - ztest_set_random_blocksize(os, object, tx); - - dmu_object_set_checksum(os, object, - ztest_random_checksum(), tx); - dmu_object_set_compress(os, object, - ztest_random_compress(), tx); - - dmu_write(os, batchobj, b * sizeof (uint64_t), - sizeof (uint64_t), &object, tx); - - /* - * Write to both the bonus buffer and the regular data. - */ - VERIFY(0 == dmu_bonus_hold(os, object, FTAG, &db)); - ASSERT3U(bonuslen, ==, db->db_size); - - dmu_object_size_from_db(db, &va_blksize, &va_nblocks); - ASSERT3S(va_nblocks, >=, 0); - - dmu_buf_will_dirty(db, tx); - - /* - * See comments above regarding the contents of - * the bonus buffer and the word at endoff. - */ - for (c = 0; c < db->db_size; c++) - ((uint8_t *)db->db_data)[c] = (uint8_t)(c + bonuslen); - - dmu_buf_rele(db, FTAG); - - /* - * Write to a large offset to increase indirection. - */ - dmu_write(os, object, endoff, sizeof (uint64_t), &object, tx); - - dmu_tx_commit(tx); - } -} - -/* - * Verify that dmu_{read,write} work as expected. - */ -typedef struct bufwad { - uint64_t bw_index; - uint64_t bw_txg; - uint64_t bw_data; -} bufwad_t; - -typedef struct dmu_read_write_dir { - uint64_t dd_packobj; - uint64_t dd_bigobj; - uint64_t dd_chunk; -} dmu_read_write_dir_t; - -void -ztest_dmu_read_write(ztest_args_t *za) -{ - objset_t *os = za->za_os; - dmu_read_write_dir_t dd; - dmu_tx_t *tx; - int i, freeit, error; - uint64_t n, s, txg; - bufwad_t *packbuf, *bigbuf, *pack, *bigH, *bigT; - uint64_t packoff, packsize, bigoff, bigsize; - uint64_t regions = 997; - uint64_t stride = 123456789ULL; - uint64_t width = 40; - int free_percent = 5; - - /* - * This test uses two objects, packobj and bigobj, that are always - * updated together (i.e. in the same tx) so that their contents are - * in sync and can be compared. Their contents relate to each other - * in a simple way: packobj is a dense array of 'bufwad' structures, - * while bigobj is a sparse array of the same bufwads. Specifically, - * for any index n, there are three bufwads that should be identical: - * - * packobj, at offset n * sizeof (bufwad_t) - * bigobj, at the head of the nth chunk - * bigobj, at the tail of the nth chunk - * - * The chunk size is arbitrary. It doesn't have to be a power of two, - * and it doesn't have any relation to the object blocksize. - * The only requirement is that it can hold at least two bufwads. - * - * Normally, we write the bufwad to each of these locations. - * However, free_percent of the time we instead write zeroes to - * packobj and perform a dmu_free_range() on bigobj. By comparing - * bigobj to packobj, we can verify that the DMU is correctly - * tracking which parts of an object are allocated and free, - * and that the contents of the allocated blocks are correct. - */ - - /* - * Read the directory info. If it's the first time, set things up. - */ - VERIFY(0 == dmu_read(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (dd), &dd)); - if (dd.dd_chunk == 0) { - ASSERT(dd.dd_packobj == 0); - ASSERT(dd.dd_bigobj == 0); - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, sizeof (dd)); - dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create r/w directory"); - dmu_tx_abort(tx); - return; - } - - dd.dd_packobj = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - dd.dd_bigobj = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0, - DMU_OT_NONE, 0, tx); - dd.dd_chunk = (1000 + ztest_random(1000)) * sizeof (uint64_t); - - ztest_set_random_blocksize(os, dd.dd_packobj, tx); - ztest_set_random_blocksize(os, dd.dd_bigobj, tx); - - dmu_write(os, ZTEST_DIROBJ, za->za_diroff, sizeof (dd), &dd, - tx); - dmu_tx_commit(tx); - } - - /* - * Prefetch a random chunk of the big object. - * Our aim here is to get some async reads in flight - * for blocks that we may free below; the DMU should - * handle this race correctly. - */ - n = ztest_random(regions) * stride + ztest_random(width); - s = 1 + ztest_random(2 * width - 1); - dmu_prefetch(os, dd.dd_bigobj, n * dd.dd_chunk, s * dd.dd_chunk); - - /* - * Pick a random index and compute the offsets into packobj and bigobj. - */ - n = ztest_random(regions) * stride + ztest_random(width); - s = 1 + ztest_random(width - 1); - - packoff = n * sizeof (bufwad_t); - packsize = s * sizeof (bufwad_t); - - bigoff = n * dd.dd_chunk; - bigsize = s * dd.dd_chunk; - - packbuf = umem_alloc(packsize, UMEM_NOFAIL); - bigbuf = umem_alloc(bigsize, UMEM_NOFAIL); - - /* - * free_percent of the time, free a range of bigobj rather than - * overwriting it. - */ - freeit = (ztest_random(100) < free_percent); - - /* - * Read the current contents of our objects. - */ - error = dmu_read(os, dd.dd_packobj, packoff, packsize, packbuf); - ASSERT3U(error, ==, 0); - error = dmu_read(os, dd.dd_bigobj, bigoff, bigsize, bigbuf); - ASSERT3U(error, ==, 0); - - /* - * Get a tx for the mods to both packobj and bigobj. - */ - tx = dmu_tx_create(os); - - dmu_tx_hold_write(tx, dd.dd_packobj, packoff, packsize); - - if (freeit) - dmu_tx_hold_free(tx, dd.dd_bigobj, bigoff, bigsize); - else - dmu_tx_hold_write(tx, dd.dd_bigobj, bigoff, bigsize); - - error = dmu_tx_assign(tx, TXG_WAIT); - - if (error) { - ztest_record_enospc("dmu r/w range"); - dmu_tx_abort(tx); - umem_free(packbuf, packsize); - umem_free(bigbuf, bigsize); - return; - } - - txg = dmu_tx_get_txg(tx); - - /* - * For each index from n to n + s, verify that the existing bufwad - * in packobj matches the bufwads at the head and tail of the - * corresponding chunk in bigobj. Then update all three bufwads - * with the new values we want to write out. - */ - for (i = 0; i < s; i++) { - /* LINTED */ - pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t)); - /* LINTED */ - bigH = (bufwad_t *)((char *)bigbuf + i * dd.dd_chunk); - /* LINTED */ - bigT = (bufwad_t *)((char *)bigH + dd.dd_chunk) - 1; - - ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize); - ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize); - - if (pack->bw_txg > txg) - fatal(0, "future leak: got %llx, open txg is %llx", - pack->bw_txg, txg); - - if (pack->bw_data != 0 && pack->bw_index != n + i) - fatal(0, "wrong index: got %llx, wanted %llx+%llx", - pack->bw_index, n, i); - - if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0) - fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH); - - if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0) - fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT); - - if (freeit) { - bzero(pack, sizeof (bufwad_t)); - } else { - pack->bw_index = n + i; - pack->bw_txg = txg; - pack->bw_data = 1 + ztest_random(-2ULL); - } - *bigH = *pack; - *bigT = *pack; - } - - /* - * We've verified all the old bufwads, and made new ones. - * Now write them out. - */ - dmu_write(os, dd.dd_packobj, packoff, packsize, packbuf, tx); - - if (freeit) { - if (zopt_verbose >= 6) { - (void) printf("freeing offset %llx size %llx" - " txg %llx\n", - (u_longlong_t)bigoff, - (u_longlong_t)bigsize, - (u_longlong_t)txg); - } - VERIFY(0 == dmu_free_range(os, dd.dd_bigobj, bigoff, - bigsize, tx)); - } else { - if (zopt_verbose >= 6) { - (void) printf("writing offset %llx size %llx" - " txg %llx\n", - (u_longlong_t)bigoff, - (u_longlong_t)bigsize, - (u_longlong_t)txg); - } - dmu_write(os, dd.dd_bigobj, bigoff, bigsize, bigbuf, tx); - } - - dmu_tx_commit(tx); - - /* - * Sanity check the stuff we just wrote. - */ - { - void *packcheck = umem_alloc(packsize, UMEM_NOFAIL); - void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL); - - VERIFY(0 == dmu_read(os, dd.dd_packobj, packoff, - packsize, packcheck)); - VERIFY(0 == dmu_read(os, dd.dd_bigobj, bigoff, - bigsize, bigcheck)); - - ASSERT(bcmp(packbuf, packcheck, packsize) == 0); - ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0); - - umem_free(packcheck, packsize); - umem_free(bigcheck, bigsize); - } - - umem_free(packbuf, packsize); - umem_free(bigbuf, bigsize); -} - -void -ztest_dmu_check_future_leak(objset_t *os, uint64_t txg) -{ - dmu_buf_t *db; - ztest_block_tag_t rbt; - - if (zopt_verbose >= 3) { - char osname[MAXNAMELEN]; - dmu_objset_name(os, osname); - (void) printf("checking %s for future leaks in txg %lld...\n", - osname, (u_longlong_t)txg); - } - - /* - * Make sure that, if there is a write record in the bonus buffer - * of the ZTEST_DIROBJ, that the txg for this record is <= the - * last synced txg of the pool. - */ - - VERIFY(0 == dmu_bonus_hold(os, ZTEST_DIROBJ, FTAG, &db)); - ASSERT3U(db->db_size, ==, sizeof (rbt)); - bcopy(db->db_data, &rbt, db->db_size); - if (rbt.bt_objset != 0) { - ASSERT3U(rbt.bt_objset, ==, dmu_objset_id(os)); - ASSERT3U(rbt.bt_object, ==, ZTEST_DIROBJ); - ASSERT3U(rbt.bt_offset, ==, -1ULL); - if (rbt.bt_txg > txg) { - fatal(0, - "future leak: got %llx, last synced txg is %llx", - rbt.bt_txg, txg); - } - } - dmu_buf_rele(db, FTAG); -} - -void -ztest_dmu_write_parallel(ztest_args_t *za) -{ - objset_t *os = za->za_os; - dmu_tx_t *tx; - dmu_buf_t *db; - int i, b, error, do_free, bs; - uint64_t off, txg_how, txg; - mutex_t *lp; - char osname[MAXNAMELEN]; - char iobuf[SPA_MAXBLOCKSIZE]; - ztest_block_tag_t rbt, wbt; - - dmu_objset_name(os, osname); - bs = ZTEST_DIROBJ_BLOCKSIZE; - - /* - * Have multiple threads write to large offsets in ZTEST_DIROBJ - * to verify that having multiple threads writing to the same object - * in parallel doesn't cause any trouble. - * Also do parallel writes to the bonus buffer on occasion. - */ - for (i = 0; i < 50; i++) { - b = ztest_random(ZTEST_SYNC_LOCKS); - lp = &ztest_shared->zs_sync_lock[b]; - - do_free = (ztest_random(4) == 0); - - off = za->za_diroff_shared + ((uint64_t)b << SPA_MAXBLOCKSHIFT); - - if (ztest_random(4) == 0) { - /* - * Do the bonus buffer instead of a regular block. - */ - do_free = 0; - off = -1ULL; - } - - tx = dmu_tx_create(os); - - if (off == -1ULL) - dmu_tx_hold_bonus(tx, ZTEST_DIROBJ); - else if (do_free) - dmu_tx_hold_free(tx, ZTEST_DIROBJ, off, bs); - else - dmu_tx_hold_write(tx, ZTEST_DIROBJ, off, bs); - - txg_how = ztest_random(2) == 0 ? TXG_WAIT : TXG_NOWAIT; - error = dmu_tx_assign(tx, txg_how); - if (error) { - if (error == ERESTART) { - ASSERT(txg_how == TXG_NOWAIT); - dmu_tx_wait(tx); - dmu_tx_abort(tx); - continue; - } - dmu_tx_abort(tx); - ztest_record_enospc("dmu write parallel"); - return; - } - txg = dmu_tx_get_txg(tx); - - if (do_free) { - (void) mutex_lock(lp); - VERIFY(0 == dmu_free_range(os, ZTEST_DIROBJ, off, - bs, tx)); - (void) mutex_unlock(lp); - dmu_tx_commit(tx); - continue; - } - - wbt.bt_objset = dmu_objset_id(os); - wbt.bt_object = ZTEST_DIROBJ; - wbt.bt_offset = off; - wbt.bt_txg = txg; - wbt.bt_thread = za->za_instance; - - if (off == -1ULL) { - wbt.bt_seq = 0; - VERIFY(0 == dmu_bonus_hold(os, ZTEST_DIROBJ, - FTAG, &db)); - ASSERT3U(db->db_size, ==, sizeof (wbt)); - bcopy(db->db_data, &rbt, db->db_size); - if (rbt.bt_objset != 0) { - ASSERT3U(rbt.bt_objset, ==, wbt.bt_objset); - ASSERT3U(rbt.bt_object, ==, wbt.bt_object); - ASSERT3U(rbt.bt_offset, ==, wbt.bt_offset); - ASSERT3U(rbt.bt_txg, <=, wbt.bt_txg); - } - dmu_buf_will_dirty(db, tx); - bcopy(&wbt, db->db_data, db->db_size); - dmu_buf_rele(db, FTAG); - dmu_tx_commit(tx); - continue; - } - - (void) mutex_lock(lp); - - wbt.bt_seq = ztest_shared->zs_seq[b]++; - - dmu_write(os, ZTEST_DIROBJ, off, sizeof (wbt), &wbt, tx); - - (void) mutex_unlock(lp); - - if (ztest_random(100) == 0) - (void) poll(NULL, 0, 1); /* open dn_notxholds window */ - - dmu_tx_commit(tx); - - if (ztest_random(1000) == 0) - txg_wait_synced(dmu_objset_pool(os), txg); - - if (ztest_random(2) == 0) { - blkptr_t blk = { 0 }; - uint64_t blkoff; - zbookmark_t zb; - - (void) mutex_lock(lp); - blkoff = P2ALIGN_TYPED(off, bs, uint64_t); - error = dmu_buf_hold(os, - ZTEST_DIROBJ, blkoff, FTAG, &db); - if (error) { - dprintf("dmu_buf_hold(%s, %d, %llx) = %d\n", - osname, ZTEST_DIROBJ, blkoff, error); - (void) mutex_unlock(lp); - continue; - } - blkoff = off - blkoff; - error = dmu_sync(NULL, db, &blk, txg, NULL, NULL); - dmu_buf_rele(db, FTAG); - (void) mutex_unlock(lp); - if (error) { - dprintf("dmu_sync(%s, %d, %llx) = %d\n", - osname, ZTEST_DIROBJ, off, error); - continue; - } - - if (blk.blk_birth == 0) { /* concurrent free */ - continue; - } - txg_suspend(dmu_objset_pool(os)); - - ASSERT(blk.blk_fill == 1); - ASSERT3U(BP_GET_TYPE(&blk), ==, DMU_OT_UINT64_OTHER); - ASSERT3U(BP_GET_LEVEL(&blk), ==, 0); - ASSERT3U(BP_GET_LSIZE(&blk), ==, bs); - - /* - * Read the block that dmu_sync() returned to - * make sure its contents match what we wrote. - * We do this while still txg_suspend()ed to ensure - * that the block can't be reused before we read it. - */ - zb.zb_objset = dmu_objset_id(os); - zb.zb_object = ZTEST_DIROBJ; - zb.zb_level = 0; - zb.zb_blkid = off / bs; - error = zio_wait(zio_read(NULL, dmu_objset_spa(os), - &blk, iobuf, bs, NULL, NULL, - ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_MUSTSUCCEED, &zb)); - ASSERT(error == 0); - - txg_resume(dmu_objset_pool(os)); - - bcopy(&iobuf[blkoff], &rbt, sizeof (rbt)); - - if (rbt.bt_objset == 0) /* concurrent free */ - continue; - - ASSERT3U(rbt.bt_objset, ==, wbt.bt_objset); - ASSERT3U(rbt.bt_object, ==, wbt.bt_object); - ASSERT3U(rbt.bt_offset, ==, wbt.bt_offset); - - /* - * The semantic of dmu_sync() is that we always - * push the most recent version of the data, - * so in the face of concurrent updates we may - * see a newer version of the block. That's OK. - */ - ASSERT3U(rbt.bt_txg, >=, wbt.bt_txg); - if (rbt.bt_thread == wbt.bt_thread) - ASSERT3U(rbt.bt_seq, ==, wbt.bt_seq); - else - ASSERT3U(rbt.bt_seq, >, wbt.bt_seq); - } - } -} - -/* - * Verify that zap_{create,destroy,add,remove,update} work as expected. - */ -#define ZTEST_ZAP_MIN_INTS 1 -#define ZTEST_ZAP_MAX_INTS 4 -#define ZTEST_ZAP_MAX_PROPS 1000 - -void -ztest_zap(ztest_args_t *za) -{ - objset_t *os = za->za_os; - uint64_t object; - uint64_t txg, last_txg; - uint64_t value[ZTEST_ZAP_MAX_INTS]; - uint64_t zl_ints, zl_intsize, prop; - int i, ints; - int iters = 100; - dmu_tx_t *tx; - char propname[100], txgname[100]; - int error; - char osname[MAXNAMELEN]; - char *hc[2] = { "s.acl.h", ".s.open.h.hyLZlg" }; - - dmu_objset_name(os, osname); - - /* - * Create a new object if necessary, and record it in the directory. - */ - VERIFY(0 == dmu_read(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t), &object)); - - if (object == 0) { - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t)); - dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, TRUE, NULL); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create zap test obj"); - dmu_tx_abort(tx); - return; - } - object = zap_create(os, DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx); - if (error) { - fatal(0, "zap_create('%s', %llu) = %d", - osname, object, error); - } - ASSERT(object != 0); - dmu_write(os, ZTEST_DIROBJ, za->za_diroff, - sizeof (uint64_t), &object, tx); - /* - * Generate a known hash collision, and verify that - * we can lookup and remove both entries. - */ - for (i = 0; i < 2; i++) { - value[i] = i; - error = zap_add(os, object, hc[i], sizeof (uint64_t), - 1, &value[i], tx); - ASSERT3U(error, ==, 0); - } - for (i = 0; i < 2; i++) { - error = zap_add(os, object, hc[i], sizeof (uint64_t), - 1, &value[i], tx); - ASSERT3U(error, ==, EEXIST); - error = zap_length(os, object, hc[i], - &zl_intsize, &zl_ints); - ASSERT3U(error, ==, 0); - ASSERT3U(zl_intsize, ==, sizeof (uint64_t)); - ASSERT3U(zl_ints, ==, 1); - } - for (i = 0; i < 2; i++) { - error = zap_remove(os, object, hc[i], tx); - ASSERT3U(error, ==, 0); - } - - dmu_tx_commit(tx); - } - - ints = MAX(ZTEST_ZAP_MIN_INTS, object % ZTEST_ZAP_MAX_INTS); - - while (--iters >= 0) { - prop = ztest_random(ZTEST_ZAP_MAX_PROPS); - (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop); - (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop); - bzero(value, sizeof (value)); - last_txg = 0; - - /* - * If these zap entries already exist, validate their contents. - */ - error = zap_length(os, object, txgname, &zl_intsize, &zl_ints); - if (error == 0) { - ASSERT3U(zl_intsize, ==, sizeof (uint64_t)); - ASSERT3U(zl_ints, ==, 1); - - error = zap_lookup(os, object, txgname, zl_intsize, - zl_ints, &last_txg); - - ASSERT3U(error, ==, 0); - - error = zap_length(os, object, propname, &zl_intsize, - &zl_ints); - - ASSERT3U(error, ==, 0); - ASSERT3U(zl_intsize, ==, sizeof (uint64_t)); - ASSERT3U(zl_ints, ==, ints); - - error = zap_lookup(os, object, propname, zl_intsize, - zl_ints, value); - - ASSERT3U(error, ==, 0); - - for (i = 0; i < ints; i++) { - ASSERT3U(value[i], ==, last_txg + object + i); - } - } else { - ASSERT3U(error, ==, ENOENT); - } - - /* - * Atomically update two entries in our zap object. - * The first is named txg_%llu, and contains the txg - * in which the property was last updated. The second - * is named prop_%llu, and the nth element of its value - * should be txg + object + n. - */ - tx = dmu_tx_create(os); - dmu_tx_hold_zap(tx, object, TRUE, NULL); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("create zap entry"); - dmu_tx_abort(tx); - return; - } - txg = dmu_tx_get_txg(tx); - - if (last_txg > txg) - fatal(0, "zap future leak: old %llu new %llu", - last_txg, txg); - - for (i = 0; i < ints; i++) - value[i] = txg + object + i; - - error = zap_update(os, object, txgname, sizeof (uint64_t), - 1, &txg, tx); - if (error) - fatal(0, "zap_update('%s', %llu, '%s') = %d", - osname, object, txgname, error); - - error = zap_update(os, object, propname, sizeof (uint64_t), - ints, value, tx); - if (error) - fatal(0, "zap_update('%s', %llu, '%s') = %d", - osname, object, propname, error); - - dmu_tx_commit(tx); - - /* - * Remove a random pair of entries. - */ - prop = ztest_random(ZTEST_ZAP_MAX_PROPS); - (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop); - (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop); - - error = zap_length(os, object, txgname, &zl_intsize, &zl_ints); - - if (error == ENOENT) - continue; - - ASSERT3U(error, ==, 0); - - tx = dmu_tx_create(os); - dmu_tx_hold_zap(tx, object, TRUE, NULL); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("remove zap entry"); - dmu_tx_abort(tx); - return; - } - error = zap_remove(os, object, txgname, tx); - if (error) - fatal(0, "zap_remove('%s', %llu, '%s') = %d", - osname, object, txgname, error); - - error = zap_remove(os, object, propname, tx); - if (error) - fatal(0, "zap_remove('%s', %llu, '%s') = %d", - osname, object, propname, error); - - dmu_tx_commit(tx); - } - - /* - * Once in a while, destroy the object. - */ - if (ztest_random(100) != 0) - return; - - tx = dmu_tx_create(os); - dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, sizeof (uint64_t)); - dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("destroy zap object"); - dmu_tx_abort(tx); - return; - } - error = zap_destroy(os, object, tx); - if (error) - fatal(0, "zap_destroy('%s', %llu) = %d", - osname, object, error); - object = 0; - dmu_write(os, ZTEST_DIROBJ, za->za_diroff, sizeof (uint64_t), - &object, tx); - dmu_tx_commit(tx); -} - -void -ztest_zap_parallel(ztest_args_t *za) -{ - objset_t *os = za->za_os; - uint64_t txg, object, count, wsize, wc, zl_wsize, zl_wc; - int iters = 100; - dmu_tx_t *tx; - int i, namelen, error; - char name[20], string_value[20]; - void *data; - - while (--iters >= 0) { - /* - * Generate a random name of the form 'xxx.....' where each - * x is a random printable character and the dots are dots. - * There are 94 such characters, and the name length goes from - * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names. - */ - namelen = ztest_random(sizeof (name) - 5) + 5 + 1; - - for (i = 0; i < 3; i++) - name[i] = '!' + ztest_random('~' - '!' + 1); - for (; i < namelen - 1; i++) - name[i] = '.'; - name[i] = '\0'; - - if (ztest_random(2) == 0) - object = ZTEST_MICROZAP_OBJ; - else - object = ZTEST_FATZAP_OBJ; - - if ((namelen & 1) || object == ZTEST_MICROZAP_OBJ) { - wsize = sizeof (txg); - wc = 1; - data = &txg; - } else { - wsize = 1; - wc = namelen; - data = string_value; - } - - count = -1ULL; - VERIFY(zap_count(os, object, &count) == 0); - ASSERT(count != -1ULL); - - /* - * Select an operation: length, lookup, add, update, remove. - */ - i = ztest_random(5); - - if (i >= 2) { - tx = dmu_tx_create(os); - dmu_tx_hold_zap(tx, object, TRUE, NULL); - error = dmu_tx_assign(tx, TXG_WAIT); - if (error) { - ztest_record_enospc("zap parallel"); - dmu_tx_abort(tx); - return; - } - txg = dmu_tx_get_txg(tx); - bcopy(name, string_value, namelen); - } else { - tx = NULL; - txg = 0; - bzero(string_value, namelen); - } - - switch (i) { - - case 0: - error = zap_length(os, object, name, &zl_wsize, &zl_wc); - if (error == 0) { - ASSERT3U(wsize, ==, zl_wsize); - ASSERT3U(wc, ==, zl_wc); - } else { - ASSERT3U(error, ==, ENOENT); - } - break; - - case 1: - error = zap_lookup(os, object, name, wsize, wc, data); - if (error == 0) { - if (data == string_value && - bcmp(name, data, namelen) != 0) - fatal(0, "name '%s' != val '%s' len %d", - name, data, namelen); - } else { - ASSERT3U(error, ==, ENOENT); - } - break; - - case 2: - error = zap_add(os, object, name, wsize, wc, data, tx); - ASSERT(error == 0 || error == EEXIST); - break; - - case 3: - VERIFY(zap_update(os, object, name, wsize, wc, - data, tx) == 0); - break; - - case 4: - error = zap_remove(os, object, name, tx); - ASSERT(error == 0 || error == ENOENT); - break; - } - - if (tx != NULL) - dmu_tx_commit(tx); - } -} - -void -ztest_dsl_prop_get_set(ztest_args_t *za) -{ - objset_t *os = za->za_os; - int i, inherit; - uint64_t value; - const char *prop, *valname; - char setpoint[MAXPATHLEN]; - char osname[MAXNAMELEN]; - int error; - - (void) rw_rdlock(&ztest_shared->zs_name_lock); - - dmu_objset_name(os, osname); - - for (i = 0; i < 2; i++) { - if (i == 0) { - prop = "checksum"; - value = ztest_random_checksum(); - inherit = (value == ZIO_CHECKSUM_INHERIT); - } else { - prop = "compression"; - value = ztest_random_compress(); - inherit = (value == ZIO_COMPRESS_INHERIT); - } - - error = dsl_prop_set(osname, prop, sizeof (value), - !inherit, &value); - - if (error == ENOSPC) { - ztest_record_enospc("dsl_prop_set"); - break; - } - - ASSERT3U(error, ==, 0); - - VERIFY3U(dsl_prop_get(osname, prop, sizeof (value), - 1, &value, setpoint), ==, 0); - - if (i == 0) - valname = zio_checksum_table[value].ci_name; - else - valname = zio_compress_table[value].ci_name; - - if (zopt_verbose >= 6) { - (void) printf("%s %s = %s for '%s'\n", - osname, prop, valname, setpoint); - } - } - - (void) rw_unlock(&ztest_shared->zs_name_lock); -} - -static void -ztest_error_setup(vdev_t *vd, int mode, int mask, uint64_t arg) -{ - int c; - - for (c = 0; c < vd->vdev_children; c++) - ztest_error_setup(vd->vdev_child[c], mode, mask, arg); - - if (vd->vdev_path != NULL) { - vd->vdev_fault_mode = mode; - vd->vdev_fault_mask = mask; - vd->vdev_fault_arg = arg; - } -} - -/* - * Inject random faults into the on-disk data. - */ -void -ztest_fault_inject(ztest_args_t *za) -{ - int fd; - uint64_t offset; - uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz; - uint64_t bad = 0x1990c0ffeedecadeULL; - uint64_t top, leaf; - char path0[MAXPATHLEN]; - char pathrand[MAXPATHLEN]; - size_t fsize; - spa_t *spa = dmu_objset_spa(za->za_os); - int bshift = SPA_MAXBLOCKSHIFT + 2; /* don't scrog all labels */ - int iters = 1000; - vdev_t *vd0; - uint64_t guid0 = 0; - - /* - * We can't inject faults when we have no fault tolerance. - */ - if (zopt_maxfaults == 0) - return; - - ASSERT(leaves >= 2); - - /* - * Pick a random top-level vdev. - */ - spa_config_enter(spa, RW_READER, FTAG); - top = ztest_random(spa->spa_root_vdev->vdev_children); - spa_config_exit(spa, FTAG); - - /* - * Pick a random leaf. - */ - leaf = ztest_random(leaves); - - /* - * Generate paths to the first two leaves in this top-level vdev, - * and to the random leaf we selected. We'll induce transient - * I/O errors and random online/offline activity on leaf 0, - * and we'll write random garbage to the randomly chosen leaf. - */ - (void) snprintf(path0, sizeof (path0), - ztest_dev_template, zopt_dir, zopt_pool, top * leaves + 0); - (void) snprintf(pathrand, sizeof (pathrand), - ztest_dev_template, zopt_dir, zopt_pool, top * leaves + leaf); - - dprintf("damaging %s and %s\n", path0, pathrand); - - spa_config_enter(spa, RW_READER, FTAG); - - /* - * If we can tolerate two or more faults, make vd0 fail randomly. - */ - vd0 = vdev_lookup_by_path(spa->spa_root_vdev, path0); - if (vd0 != NULL && zopt_maxfaults >= 2) { - guid0 = vd0->vdev_guid; - ztest_error_setup(vd0, VDEV_FAULT_COUNT, - (1U << ZIO_TYPE_READ) | (1U << ZIO_TYPE_WRITE), 100); - } - - spa_config_exit(spa, FTAG); - - /* - * If we can tolerate two or more faults, randomly online/offline vd0. - */ - if (zopt_maxfaults >= 2 && guid0 != 0) { - if (ztest_random(10) < 6) - (void) vdev_offline(spa, guid0, B_TRUE); - else - (void) vdev_online(spa, guid0); - } - - /* - * We have at least single-fault tolerance, so inject data corruption. - */ - fd = open(pathrand, O_RDWR); - - if (fd == -1) /* we hit a gap in the device namespace */ - return; - - fsize = lseek(fd, 0, SEEK_END); - - while (--iters != 0) { - offset = ztest_random(fsize / (leaves << bshift)) * - (leaves << bshift) + (leaf << bshift) + - (ztest_random(1ULL << (bshift - 1)) & -8ULL); - - if (offset >= fsize) - continue; - - if (zopt_verbose >= 6) - (void) printf("injecting bad word into %s," - " offset 0x%llx\n", pathrand, (u_longlong_t)offset); - - if (pwrite(fd, &bad, sizeof (bad), offset) != sizeof (bad)) - fatal(1, "can't inject bad word at 0x%llx in %s", - offset, pathrand); - } - - (void) close(fd); -} - -/* - * Scrub the pool. - */ -void -ztest_scrub(ztest_args_t *za) -{ - spa_t *spa = dmu_objset_spa(za->za_os); - - (void) spa_scrub(spa, POOL_SCRUB_EVERYTHING, B_FALSE); - (void) poll(NULL, 0, 1000); /* wait a second, then force a restart */ - (void) spa_scrub(spa, POOL_SCRUB_EVERYTHING, B_FALSE); -} - -/* - * Rename the pool to a different name and then rename it back. - */ -void -ztest_spa_rename(ztest_args_t *za) -{ - char *oldname, *newname; - int error; - spa_t *spa; - - (void) rw_wrlock(&ztest_shared->zs_name_lock); - - oldname = za->za_pool; - newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL); - (void) strcpy(newname, oldname); - (void) strcat(newname, "_tmp"); - - /* - * Do the rename - */ - error = spa_rename(oldname, newname); - if (error) - fatal(0, "spa_rename('%s', '%s') = %d", oldname, - newname, error); - - /* - * Try to open it under the old name, which shouldn't exist - */ - error = spa_open(oldname, &spa, FTAG); - if (error != ENOENT) - fatal(0, "spa_open('%s') = %d", oldname, error); - - /* - * Open it under the new name and make sure it's still the same spa_t. - */ - error = spa_open(newname, &spa, FTAG); - if (error != 0) - fatal(0, "spa_open('%s') = %d", newname, error); - - ASSERT(spa == dmu_objset_spa(za->za_os)); - spa_close(spa, FTAG); - - /* - * Rename it back to the original - */ - error = spa_rename(newname, oldname); - if (error) - fatal(0, "spa_rename('%s', '%s') = %d", newname, - oldname, error); - - /* - * Make sure it can still be opened - */ - error = spa_open(oldname, &spa, FTAG); - if (error != 0) - fatal(0, "spa_open('%s') = %d", oldname, error); - - ASSERT(spa == dmu_objset_spa(za->za_os)); - spa_close(spa, FTAG); - - umem_free(newname, strlen(newname) + 1); - - (void) rw_unlock(&ztest_shared->zs_name_lock); -} - - -/* - * Completely obliterate one disk. - */ -static void -ztest_obliterate_one_disk(uint64_t vdev) -{ - int fd; - char dev_name[MAXPATHLEN], copy_name[MAXPATHLEN]; - size_t fsize; - - if (zopt_maxfaults < 2) - return; - - (void) sprintf(dev_name, ztest_dev_template, zopt_dir, zopt_pool, vdev); - (void) snprintf(copy_name, MAXPATHLEN, "%s.old", dev_name); - - fd = open(dev_name, O_RDWR); - - if (fd == -1) - fatal(1, "can't open %s", dev_name); - - /* - * Determine the size. - */ - fsize = lseek(fd, 0, SEEK_END); - - (void) close(fd); - - /* - * Rename the old device to dev_name.old (useful for debugging). - */ - VERIFY(rename(dev_name, copy_name) == 0); - - /* - * Create a new one. - */ - VERIFY((fd = open(dev_name, O_RDWR | O_CREAT | O_TRUNC, 0666)) >= 0); - VERIFY(ftruncate(fd, fsize) == 0); - (void) close(fd); -} - -static void -ztest_replace_one_disk(spa_t *spa, uint64_t vdev) -{ - char dev_name[MAXPATHLEN]; - nvlist_t *file, *root; - int error; - uint64_t guid; - uint64_t ashift = ztest_get_ashift(); - vdev_t *vd; - - (void) sprintf(dev_name, ztest_dev_template, zopt_dir, zopt_pool, vdev); - - /* - * Build the nvlist describing dev_name. - */ - VERIFY(nvlist_alloc(&file, NV_UNIQUE_NAME, 0) == 0); - VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_TYPE, VDEV_TYPE_FILE) == 0); - VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_PATH, dev_name) == 0); - VERIFY(nvlist_add_uint64(file, ZPOOL_CONFIG_ASHIFT, ashift) == 0); - - VERIFY(nvlist_alloc(&root, NV_UNIQUE_NAME, 0) == 0); - VERIFY(nvlist_add_string(root, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) == 0); - VERIFY(nvlist_add_nvlist_array(root, ZPOOL_CONFIG_CHILDREN, - &file, 1) == 0); - - spa_config_enter(spa, RW_READER, FTAG); - if ((vd = vdev_lookup_by_path(spa->spa_root_vdev, dev_name)) == NULL) - guid = 0; - else - guid = vd->vdev_guid; - spa_config_exit(spa, FTAG); - error = spa_vdev_attach(spa, guid, root, B_TRUE); - if (error != 0 && - error != EBUSY && - error != ENOTSUP && - error != ENODEV && - error != EDOM) - fatal(0, "spa_vdev_attach(in-place) = %d", error); - - nvlist_free(file); - nvlist_free(root); -} - -static void -ztest_verify_blocks(char *pool) -{ - int status; - char zdb[MAXPATHLEN + MAXNAMELEN + 20]; - char zbuf[1024]; - char *bin; - FILE *fp; - - if (realpath(progname, zdb) == NULL) - assert(!"realpath() failed"); - - /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */ - bin = strstr(zdb, "/usr/bin/"); - if (bin == NULL) - bin = zdb; - /* LINTED */ - (void) sprintf(bin, "/usr/sbin/zdb -bc%s%s -U -O %s %s", - zopt_verbose >= 3 ? "s" : "", - zopt_verbose >= 4 ? "v" : "", - ztest_random(2) == 0 ? "pre" : "post", pool); - - if (zopt_verbose >= 5) - (void) printf("Executing %s\n", strstr(zdb, "zdb ")); - - fp = popen(zdb, "r"); - assert(fp != NULL); - - while (fgets(zbuf, sizeof (zbuf), fp) != NULL) - if (zopt_verbose >= 3) - (void) printf("%s", zbuf); - - status = pclose(fp); - - if (status == 0) - return; - - ztest_dump_core = 0; - if (WIFEXITED(status)) - fatal(0, "'%s' exit code %d", zdb, WEXITSTATUS(status)); - else - fatal(0, "'%s' died with signal %d", zdb, WTERMSIG(status)); -} - -static void -ztest_walk_pool_directory(char *header) -{ - spa_t *spa = NULL; - - if (zopt_verbose >= 6) - (void) printf("%s\n", header); - - mutex_enter(&spa_namespace_lock); - while ((spa = spa_next(spa)) != NULL) - if (zopt_verbose >= 6) - (void) printf("\t%s\n", spa_name(spa)); - mutex_exit(&spa_namespace_lock); -} - -static void -ztest_spa_import_export(char *oldname, char *newname) -{ - nvlist_t *config; - uint64_t pool_guid; - spa_t *spa; - int error; - - if (zopt_verbose >= 4) { - (void) printf("import/export: old = %s, new = %s\n", - oldname, newname); - } - - /* - * Clean up from previous runs. - */ - (void) spa_destroy(newname); - - /* - * Get the pool's configuration and guid. - */ - error = spa_open(oldname, &spa, FTAG); - if (error) - fatal(0, "spa_open('%s') = %d", oldname, error); - - pool_guid = spa_guid(spa); - spa_close(spa, FTAG); - - ztest_walk_pool_directory("pools before export"); - - /* - * Export it. - */ - error = spa_export(oldname, &config); - if (error) - fatal(0, "spa_export('%s') = %d", oldname, error); - - ztest_walk_pool_directory("pools after export"); - - /* - * Import it under the new name. - */ - error = spa_import(newname, config, NULL); - if (error) - fatal(0, "spa_import('%s') = %d", newname, error); - - ztest_walk_pool_directory("pools after import"); - - /* - * Try to import it again -- should fail with EEXIST. - */ - error = spa_import(newname, config, NULL); - if (error != EEXIST) - fatal(0, "spa_import('%s') twice", newname); - - /* - * Try to import it under a different name -- should fail with EEXIST. - */ - error = spa_import(oldname, config, NULL); - if (error != EEXIST) - fatal(0, "spa_import('%s') under multiple names", newname); - - /* - * Verify that the pool is no longer visible under the old name. - */ - error = spa_open(oldname, &spa, FTAG); - if (error != ENOENT) - fatal(0, "spa_open('%s') = %d", newname, error); - - /* - * Verify that we can open and close the pool using the new name. - */ - error = spa_open(newname, &spa, FTAG); - if (error) - fatal(0, "spa_open('%s') = %d", newname, error); - ASSERT(pool_guid == spa_guid(spa)); - spa_close(spa, FTAG); - - nvlist_free(config); -} - -static void * -ztest_thread(void *arg) -{ - ztest_args_t *za = arg; - ztest_shared_t *zs = ztest_shared; - hrtime_t now, functime; - ztest_info_t *zi; - int f; - - while ((now = gethrtime()) < za->za_stop) { - /* - * See if it's time to force a crash. - */ - if (now > za->za_kill) { - dmu_tx_t *tx; - uint64_t txg; - - mutex_enter(&spa_namespace_lock); - tx = dmu_tx_create(za->za_os); - VERIFY(0 == dmu_tx_assign(tx, TXG_NOWAIT)); - txg = dmu_tx_get_txg(tx); - dmu_tx_commit(tx); - zs->zs_txg = txg; - if (zopt_verbose >= 3) - (void) printf( - "killing process after txg %lld\n", - (u_longlong_t)txg); - txg_wait_synced(dmu_objset_pool(za->za_os), txg); - zs->zs_alloc = spa_get_alloc(dmu_objset_spa(za->za_os)); - zs->zs_space = spa_get_space(dmu_objset_spa(za->za_os)); - (void) kill(getpid(), SIGKILL); - } - - /* - * Pick a random function. - */ - f = ztest_random(ZTEST_FUNCS); - zi = &zs->zs_info[f]; - - /* - * Decide whether to call it, based on the requested frequency. - */ - if (zi->zi_call_target == 0 || - (double)zi->zi_call_total / zi->zi_call_target > - (double)(now - zs->zs_start_time) / (zopt_time * NANOSEC)) - continue; - - atomic_add_64(&zi->zi_calls, 1); - atomic_add_64(&zi->zi_call_total, 1); - - za->za_diroff = (za->za_instance * ZTEST_FUNCS + f) * - ZTEST_DIRSIZE; - za->za_diroff_shared = (1ULL << 63); - - ztest_dmu_write_parallel(za); - - zi->zi_func(za); - - functime = gethrtime() - now; - - atomic_add_64(&zi->zi_call_time, functime); - - if (zopt_verbose >= 4) { - Dl_info dli; - (void) dladdr((void *)zi->zi_func, &dli); - (void) printf("%6.2f sec in %s\n", - (double)functime / NANOSEC, dli.dli_sname); - } - - /* - * If we're getting ENOSPC with some regularity, stop. - */ - if (zs->zs_enospc_count > 10) - break; - } - - return (NULL); -} - -/* - * Kick off threads to run tests on all datasets in parallel. - */ -static void -ztest_run(char *pool) -{ - int t, d, error; - ztest_shared_t *zs = ztest_shared; - ztest_args_t *za; - spa_t *spa; - char name[100]; - - (void) _mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL); - (void) rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL); - - for (t = 0; t < ZTEST_SYNC_LOCKS; t++) - (void) _mutex_init(&zs->zs_sync_lock[t], USYNC_THREAD, NULL); - - /* - * Destroy one disk before we even start. - * It's mirrored, so everything should work just fine. - * This makes us exercise fault handling very early in spa_load(). - */ - ztest_obliterate_one_disk(0); - - /* - * Verify that the sum of the sizes of all blocks in the pool - * equals the SPA's allocated space total. - */ - ztest_verify_blocks(pool); - - /* - * Kick off a replacement of the disk we just obliterated. - */ - kernel_init(FREAD | FWRITE); - error = spa_open(pool, &spa, FTAG); - if (error) - fatal(0, "spa_open(%s) = %d", pool, error); - ztest_replace_one_disk(spa, 0); - if (zopt_verbose >= 5) - show_pool_stats(spa); - spa_close(spa, FTAG); - kernel_fini(); - - kernel_init(FREAD | FWRITE); - - /* - * Verify that we can export the pool and reimport it under a - * different name. - */ - if (ztest_random(2) == 0) { - (void) snprintf(name, 100, "%s_import", pool); - ztest_spa_import_export(pool, name); - ztest_spa_import_export(name, pool); - } - - /* - * Verify that we can loop over all pools. - */ - mutex_enter(&spa_namespace_lock); - for (spa = spa_next(NULL); spa != NULL; spa = spa_next(spa)) { - if (zopt_verbose > 3) { - (void) printf("spa_next: found %s\n", spa_name(spa)); - } - } - mutex_exit(&spa_namespace_lock); - - /* - * Open our pool. - */ - error = spa_open(pool, &spa, FTAG); - if (error) - fatal(0, "spa_open() = %d", error); - - /* - * Verify that we can safely inquire about about any object, - * whether it's allocated or not. To make it interesting, - * we probe a 5-wide window around each power of two. - * This hits all edge cases, including zero and the max. - */ - for (t = 0; t < 64; t++) { - for (d = -5; d <= 5; d++) { - error = dmu_object_info(spa->spa_meta_objset, - (1ULL << t) + d, NULL); - ASSERT(error == 0 || error == ENOENT || - error == EINVAL); - } - } - - /* - * Now kick off all the tests that run in parallel. - */ - zs->zs_enospc_count = 0; - - za = umem_zalloc(zopt_threads * sizeof (ztest_args_t), UMEM_NOFAIL); - - if (zopt_verbose >= 4) - (void) printf("starting main threads...\n"); - - za[0].za_start = gethrtime(); - za[0].za_stop = za[0].za_start + zopt_passtime * NANOSEC; - za[0].za_stop = MIN(za[0].za_stop, zs->zs_stop_time); - za[0].za_kill = za[0].za_stop; - if (ztest_random(100) < zopt_killrate) - za[0].za_kill -= ztest_random(zopt_passtime * NANOSEC); - - for (t = 0; t < zopt_threads; t++) { - d = t % zopt_datasets; - if (t < zopt_datasets) { - ztest_replay_t zr; - int test_future = FALSE; - (void) rw_rdlock(&ztest_shared->zs_name_lock); - (void) snprintf(name, 100, "%s/%s_%d", pool, pool, d); - error = dmu_objset_create(name, DMU_OST_OTHER, NULL, - ztest_create_cb, NULL); - if (error == EEXIST) { - test_future = TRUE; - } else if (error != 0) { - if (error == ENOSPC) { - zs->zs_enospc_count++; - (void) rw_unlock( - &ztest_shared->zs_name_lock); - break; - } - fatal(0, "dmu_objset_create(%s) = %d", - name, error); - } - error = dmu_objset_open(name, DMU_OST_OTHER, - DS_MODE_STANDARD, &za[d].za_os); - if (error) - fatal(0, "dmu_objset_open('%s') = %d", - name, error); - (void) rw_unlock(&ztest_shared->zs_name_lock); - if (test_future && ztest_shared->zs_txg > 0) - ztest_dmu_check_future_leak(za[d].za_os, - ztest_shared->zs_txg); - zr.zr_os = za[d].za_os; - zil_replay(zr.zr_os, &zr, &zr.zr_assign, - ztest_replay_vector); - za[d].za_zilog = zil_open(za[d].za_os, NULL); - } - za[t].za_pool = spa_strdup(pool); - za[t].za_os = za[d].za_os; - za[t].za_zilog = za[d].za_zilog; - za[t].za_instance = t; - za[t].za_random = ztest_random(-1ULL); - za[t].za_start = za[0].za_start; - za[t].za_stop = za[0].za_stop; - za[t].za_kill = za[0].za_kill; - - error = thr_create(0, 0, ztest_thread, &za[t], THR_BOUND, - &za[t].za_thread); - if (error) - fatal(0, "can't create thread %d: error %d", - t, error); - } - ztest_shared->zs_txg = 0; - - while (--t >= 0) { - error = thr_join(za[t].za_thread, NULL, NULL); - if (error) - fatal(0, "thr_join(%d) = %d", t, error); - if (za[t].za_th) - traverse_fini(za[t].za_th); - if (t < zopt_datasets) { - zil_close(za[t].za_zilog); - dmu_objset_close(za[t].za_os); - } - spa_strfree(za[t].za_pool); - } - - umem_free(za, zopt_threads * sizeof (ztest_args_t)); - - if (zopt_verbose >= 3) - show_pool_stats(spa); - - txg_wait_synced(spa_get_dsl(spa), 0); - - zs->zs_alloc = spa_get_alloc(spa); - zs->zs_space = spa_get_space(spa); - - /* - * Did we have out-of-space errors? If so, destroy a random objset. - */ - if (zs->zs_enospc_count != 0) { - (void) rw_rdlock(&ztest_shared->zs_name_lock); - (void) snprintf(name, 100, "%s/%s_%d", pool, pool, - (int)ztest_random(zopt_datasets)); - if (zopt_verbose >= 3) - (void) printf("Destroying %s to free up space\n", name); - (void) dmu_objset_find(name, ztest_destroy_cb, NULL, - DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); - (void) rw_unlock(&ztest_shared->zs_name_lock); - } - - txg_wait_synced(spa_get_dsl(spa), 0); - - /* - * Right before closing the pool, kick off a bunch of async I/O; - * spa_close() should wait for it to complete. - */ - for (t = 1; t < 50; t++) - dmu_prefetch(spa->spa_meta_objset, t, 0, 1 << 15); - - spa_close(spa, FTAG); - - kernel_fini(); -} - -void -print_time(hrtime_t t, char *timebuf) -{ - hrtime_t s = t / NANOSEC; - hrtime_t m = s / 60; - hrtime_t h = m / 60; - hrtime_t d = h / 24; - - s -= m * 60; - m -= h * 60; - h -= d * 24; - - timebuf[0] = '\0'; - - if (d) - (void) sprintf(timebuf, - "%llud%02lluh%02llum%02llus", d, h, m, s); - else if (h) - (void) sprintf(timebuf, "%lluh%02llum%02llus", h, m, s); - else if (m) - (void) sprintf(timebuf, "%llum%02llus", m, s); - else - (void) sprintf(timebuf, "%llus", s); -} - -/* - * Create a storage pool with the given name and initial vdev size. - * Then create the specified number of datasets in the pool. - */ -static void -ztest_init(char *pool) -{ - spa_t *spa; - int error; - nvlist_t *nvroot; - - kernel_init(FREAD | FWRITE); - - /* - * Create the storage pool. - */ - (void) spa_destroy(pool); - ztest_shared->zs_vdev_primaries = 0; - nvroot = make_vdev_root(zopt_vdev_size, zopt_raidz, zopt_mirrors, 1); - error = spa_create(pool, nvroot, NULL); - nvlist_free(nvroot); - - if (error) - fatal(0, "spa_create() = %d", error); - error = spa_open(pool, &spa, FTAG); - if (error) - fatal(0, "spa_open() = %d", error); - - if (zopt_verbose >= 3) - show_pool_stats(spa); - - spa_close(spa, FTAG); - - kernel_fini(); -} - -int -main(int argc, char **argv) -{ - int kills = 0; - int iters = 0; - int i, f; - ztest_shared_t *zs; - ztest_info_t *zi; - char timebuf[100]; - char numbuf[6]; - - (void) setvbuf(stdout, NULL, _IOLBF, 0); - - /* Override location of zpool.cache */ - spa_config_dir = "/tmp"; - - ztest_random_fd = open("/dev/urandom", O_RDONLY); - - process_options(argc, argv); - - argc -= optind; - argv += optind; - - dprintf_setup(&argc, argv); - - /* - * Blow away any existing copy of zpool.cache - */ - if (zopt_init != 0) - (void) remove("/tmp/zpool.cache"); - - zs = ztest_shared = (void *)mmap(0, - P2ROUNDUP(sizeof (ztest_shared_t), getpagesize()), - PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0); - - if (zopt_verbose >= 1) { - (void) printf("%llu vdevs, %d datasets, %d threads," - " %llu seconds...\n", - (u_longlong_t)zopt_vdevs, zopt_datasets, zopt_threads, - (u_longlong_t)zopt_time); - } - - /* - * Create and initialize our storage pool. - */ - for (i = 1; i <= zopt_init; i++) { - bzero(zs, sizeof (ztest_shared_t)); - if (zopt_verbose >= 3 && zopt_init != 1) - (void) printf("ztest_init(), pass %d\n", i); - ztest_init(zopt_pool); - } - - /* - * Initialize the call targets for each function. - */ - for (f = 0; f < ZTEST_FUNCS; f++) { - zi = &zs->zs_info[f]; - - *zi = ztest_info[f]; - - if (*zi->zi_interval == 0) - zi->zi_call_target = UINT64_MAX; - else - zi->zi_call_target = zopt_time / *zi->zi_interval; - } - - zs->zs_start_time = gethrtime(); - zs->zs_stop_time = zs->zs_start_time + zopt_time * NANOSEC; - - /* - * Run the tests in a loop. These tests include fault injection - * to verify that self-healing data works, and forced crashes - * to verify that we never lose on-disk consistency. - */ - while (gethrtime() < zs->zs_stop_time) { - int status; - pid_t pid; - char *tmp; - - /* - * Initialize the workload counters for each function. - */ - for (f = 0; f < ZTEST_FUNCS; f++) { - zi = &zs->zs_info[f]; - zi->zi_calls = 0; - zi->zi_call_time = 0; - } - - pid = fork(); - - if (pid == -1) - fatal(1, "fork failed"); - - if (pid == 0) { /* child */ - struct rlimit rl = { 1024, 1024 }; - (void) setrlimit(RLIMIT_NOFILE, &rl); - (void) enable_extended_FILE_stdio(-1, -1); - ztest_run(zopt_pool); - exit(0); - } - - while (waitpid(pid, &status, 0) != pid) - continue; - - if (WIFEXITED(status)) { - if (WEXITSTATUS(status) != 0) { - (void) fprintf(stderr, - "child exited with code %d\n", - WEXITSTATUS(status)); - exit(2); - } - } else if (WIFSIGNALED(status)) { - if (WTERMSIG(status) != SIGKILL) { - (void) fprintf(stderr, - "child died with signal %d\n", - WTERMSIG(status)); - exit(3); - } - kills++; - } else { - (void) fprintf(stderr, "something strange happened " - "to child\n"); - exit(4); - } - - iters++; - - if (zopt_verbose >= 1) { - hrtime_t now = gethrtime(); - - now = MIN(now, zs->zs_stop_time); - print_time(zs->zs_stop_time - now, timebuf); - nicenum(zs->zs_space, numbuf); - - (void) printf("Pass %3d, %8s, %3llu ENOSPC, " - "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n", - iters, - WIFEXITED(status) ? "Complete" : "SIGKILL", - (u_longlong_t)zs->zs_enospc_count, - 100.0 * zs->zs_alloc / zs->zs_space, - numbuf, - 100.0 * (now - zs->zs_start_time) / - (zopt_time * NANOSEC), timebuf); - } - - if (zopt_verbose >= 2) { - (void) printf("\nWorkload summary:\n\n"); - (void) printf("%7s %9s %s\n", - "Calls", "Time", "Function"); - (void) printf("%7s %9s %s\n", - "-----", "----", "--------"); - for (f = 0; f < ZTEST_FUNCS; f++) { - Dl_info dli; - - zi = &zs->zs_info[f]; - print_time(zi->zi_call_time, timebuf); - (void) dladdr((void *)zi->zi_func, &dli); - (void) printf("%7llu %9s %s\n", - (u_longlong_t)zi->zi_calls, timebuf, - dli.dli_sname); - } - (void) printf("\n"); - } - - /* - * It's possible that we killed a child during a rename test, in - * which case we'll have a 'ztest_tmp' pool lying around instead - * of 'ztest'. Do a blind rename in case this happened. - */ - tmp = umem_alloc(strlen(zopt_pool) + 5, UMEM_NOFAIL); - (void) strcpy(tmp, zopt_pool); - (void) strcat(tmp, "_tmp"); - kernel_init(FREAD | FWRITE); - (void) spa_rename(tmp, zopt_pool); - kernel_fini(); - umem_free(tmp, strlen(tmp) + 1); - } - - ztest_verify_blocks(zopt_pool); - - if (zopt_verbose >= 1) { - (void) printf("%d killed, %d completed, %.0f%% kill rate\n", - kills, iters - kills, (100.0 * kills) / MAX(1, iters)); - } - - return (0); -} |
