4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
26 * The objective of this program is to provide a DMU/ZAP/SPA stress test
27 * that runs entirely in userland, is easy to use, and easy to extend.
29 * The overall design of the ztest program is as follows:
31 * (1) For each major functional area (e.g. adding vdevs to a pool,
32 * creating and destroying datasets, reading and writing objects, etc)
33 * we have a simple routine to test that functionality. These
34 * individual routines do not have to do anything "stressful".
36 * (2) We turn these simple functionality tests into a stress test by
37 * running them all in parallel, with as many threads as desired,
38 * and spread across as many datasets, objects, and vdevs as desired.
40 * (3) While all this is happening, we inject faults into the pool to
41 * verify that self-healing data really works.
43 * (4) Every time we open a dataset, we change its checksum and compression
44 * functions. Thus even individual objects vary from block to block
45 * in which checksum they use and whether they're compressed.
47 * (5) To verify that we never lose on-disk consistency after a crash,
48 * we run the entire test in a child of the main process.
49 * At random times, the child self-immolates with a SIGKILL.
50 * This is the software equivalent of pulling the power cord.
51 * The parent then runs the test again, using the existing
52 * storage pool, as many times as desired.
54 * (6) To verify that we don't have future leaks or temporal incursions,
55 * many of the functional tests record the transaction group number
56 * as part of their data. When reading old data, they verify that
57 * the transaction group number is less than the current, open txg.
58 * If you add a new test, please do this if applicable.
60 * When run with no arguments, ztest runs for about five minutes and
61 * produces no output if successful. To get a little bit of information,
62 * specify -V. To get more information, specify -VV, and so on.
64 * To turn this into an overnight stress test, use -T to specify run time.
66 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
67 * to increase the pool capacity, fanout, and overall stress level.
69 * The -N(okill) option will suppress kills, so each child runs to completion.
70 * This can be useful when you're trying to distinguish temporal incursions
71 * from plain old race conditions.
74 #include <sys/zfs_context.h>
80 #include <sys/dmu_objset.h>
86 #include <sys/resource.h>
89 #include <sys/zil_impl.h>
90 #include <sys/vdev_impl.h>
91 #include <sys/vdev_file.h>
92 #include <sys/spa_impl.h>
93 #include <sys/metaslab_impl.h>
94 #include <sys/dsl_prop.h>
95 #include <sys/dsl_dataset.h>
96 #include <sys/dsl_scan.h>
97 #include <sys/zio_checksum.h>
98 #include <sys/refcount.h>
100 #include <stdio_ext.h>
108 #include <sys/fs/zfs.h>
109 #include <libnvpair.h>
111 static char cmdname[] = "ztest";
112 static char *zopt_pool = cmdname;
114 static uint64_t zopt_vdevs = 5;
115 static uint64_t zopt_vdevtime;
116 static int zopt_ashift = SPA_MINBLOCKSHIFT;
117 static int zopt_mirrors = 2;
118 static int zopt_raidz = 4;
119 static int zopt_raidz_parity = 1;
120 static size_t zopt_vdev_size = SPA_MINDEVSIZE;
121 static int zopt_datasets = 7;
122 static int zopt_threads = 23;
123 static uint64_t zopt_passtime = 60; /* 60 seconds */
124 static uint64_t zopt_killrate = 70; /* 70% kill rate */
125 static int zopt_verbose = 0;
126 static int zopt_init = 1;
127 static char *zopt_dir = "/tmp";
128 static uint64_t zopt_time = 300; /* 5 minutes */
129 static uint64_t zopt_maxloops = 50; /* max loops during spa_freeze() */
131 #define BT_MAGIC 0x123456789abcdefULL
132 #define MAXFAULTS() (MAX(zs->zs_mirrors, 1) * (zopt_raidz_parity + 1) - 1)
136 ZTEST_IO_WRITE_PATTERN,
137 ZTEST_IO_WRITE_ZEROES,
143 typedef struct ztest_block_tag {
153 typedef struct bufwad {
160 * XXX -- fix zfs range locks to be generic so we can use them here.
182 #define ZTEST_RANGE_LOCKS 64
183 #define ZTEST_OBJECT_LOCKS 64
186 * Object descriptor. Used as a template for object lookup/create/remove.
188 typedef struct ztest_od {
191 dmu_object_type_t od_type;
192 dmu_object_type_t od_crtype;
193 uint64_t od_blocksize;
194 uint64_t od_crblocksize;
197 char od_name[MAXNAMELEN];
203 typedef struct ztest_ds {
207 ztest_od_t *zd_od; /* debugging aid */
208 char zd_name[MAXNAMELEN];
209 mutex_t zd_dirobj_lock;
210 rll_t zd_object_lock[ZTEST_OBJECT_LOCKS];
211 rll_t zd_range_lock[ZTEST_RANGE_LOCKS];
215 * Per-iteration state.
217 typedef void ztest_func_t(ztest_ds_t *zd, uint64_t id);
219 typedef struct ztest_info {
220 ztest_func_t *zi_func; /* test function */
221 uint64_t zi_iters; /* iterations per execution */
222 uint64_t *zi_interval; /* execute every <interval> seconds */
223 uint64_t zi_call_count; /* per-pass count */
224 uint64_t zi_call_time; /* per-pass time */
225 uint64_t zi_call_next; /* next time to call this function */
229 * Note: these aren't static because we want dladdr() to work.
231 ztest_func_t ztest_dmu_read_write;
232 ztest_func_t ztest_dmu_write_parallel;
233 ztest_func_t ztest_dmu_object_alloc_free;
234 ztest_func_t ztest_dmu_commit_callbacks;
235 ztest_func_t ztest_zap;
236 ztest_func_t ztest_zap_parallel;
237 ztest_func_t ztest_zil_commit;
238 ztest_func_t ztest_dmu_read_write_zcopy;
239 ztest_func_t ztest_dmu_objset_create_destroy;
240 ztest_func_t ztest_dmu_prealloc;
241 ztest_func_t ztest_fzap;
242 ztest_func_t ztest_dmu_snapshot_create_destroy;
243 ztest_func_t ztest_dsl_prop_get_set;
244 ztest_func_t ztest_spa_prop_get_set;
245 ztest_func_t ztest_spa_create_destroy;
246 ztest_func_t ztest_fault_inject;
247 ztest_func_t ztest_ddt_repair;
248 ztest_func_t ztest_dmu_snapshot_hold;
249 ztest_func_t ztest_spa_rename;
250 ztest_func_t ztest_scrub;
251 ztest_func_t ztest_dsl_dataset_promote_busy;
252 ztest_func_t ztest_vdev_attach_detach;
253 ztest_func_t ztest_vdev_LUN_growth;
254 ztest_func_t ztest_vdev_add_remove;
255 ztest_func_t ztest_vdev_aux_add_remove;
256 ztest_func_t ztest_split_pool;
258 uint64_t zopt_always = 0ULL * NANOSEC; /* all the time */
259 uint64_t zopt_incessant = 1ULL * NANOSEC / 10; /* every 1/10 second */
260 uint64_t zopt_often = 1ULL * NANOSEC; /* every second */
261 uint64_t zopt_sometimes = 10ULL * NANOSEC; /* every 10 seconds */
262 uint64_t zopt_rarely = 60ULL * NANOSEC; /* every 60 seconds */
264 ztest_info_t ztest_info[] = {
265 { ztest_dmu_read_write, 1, &zopt_always },
266 { ztest_dmu_write_parallel, 10, &zopt_always },
267 { ztest_dmu_object_alloc_free, 1, &zopt_always },
268 { ztest_dmu_commit_callbacks, 1, &zopt_always },
269 { ztest_zap, 30, &zopt_always },
270 { ztest_zap_parallel, 100, &zopt_always },
271 { ztest_split_pool, 1, &zopt_always },
272 { ztest_zil_commit, 1, &zopt_incessant },
273 { ztest_dmu_read_write_zcopy, 1, &zopt_often },
274 { ztest_dmu_objset_create_destroy, 1, &zopt_often },
275 { ztest_dsl_prop_get_set, 1, &zopt_often },
276 { ztest_spa_prop_get_set, 1, &zopt_sometimes },
278 { ztest_dmu_prealloc, 1, &zopt_sometimes },
280 { ztest_fzap, 1, &zopt_sometimes },
281 { ztest_dmu_snapshot_create_destroy, 1, &zopt_sometimes },
282 { ztest_spa_create_destroy, 1, &zopt_sometimes },
283 { ztest_fault_inject, 1, &zopt_sometimes },
284 { ztest_ddt_repair, 1, &zopt_sometimes },
285 { ztest_dmu_snapshot_hold, 1, &zopt_sometimes },
286 { ztest_spa_rename, 1, &zopt_rarely },
287 { ztest_scrub, 1, &zopt_rarely },
288 { ztest_dsl_dataset_promote_busy, 1, &zopt_rarely },
289 { ztest_vdev_attach_detach, 1, &zopt_rarely },
290 { ztest_vdev_LUN_growth, 1, &zopt_rarely },
291 { ztest_vdev_add_remove, 1, &zopt_vdevtime },
292 { ztest_vdev_aux_add_remove, 1, &zopt_vdevtime },
295 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
298 * The following struct is used to hold a list of uncalled commit callbacks.
299 * The callbacks are ordered by txg number.
301 typedef struct ztest_cb_list {
302 mutex_t zcl_callbacks_lock;
303 list_t zcl_callbacks;
307 * Stuff we need to share writably between parent and child.
309 typedef struct ztest_shared {
312 hrtime_t zs_proc_start;
313 hrtime_t zs_proc_stop;
314 hrtime_t zs_thread_start;
315 hrtime_t zs_thread_stop;
316 hrtime_t zs_thread_kill;
317 uint64_t zs_enospc_count;
318 uint64_t zs_vdev_next_leaf;
319 uint64_t zs_vdev_aux;
322 mutex_t zs_vdev_lock;
323 rwlock_t zs_name_lock;
324 ztest_info_t zs_info[ZTEST_FUNCS];
330 #define ID_PARALLEL -1ULL
332 static char ztest_dev_template[] = "%s/%s.%llua";
333 static char ztest_aux_template[] = "%s/%s.%s.%llu";
334 ztest_shared_t *ztest_shared;
337 static int ztest_random_fd;
338 static int ztest_dump_core = 1;
340 static boolean_t ztest_exiting;
342 /* Global commit callback list */
343 static ztest_cb_list_t zcl;
345 extern uint64_t metaslab_gang_bang;
346 extern uint64_t metaslab_df_alloc_threshold;
347 static uint64_t metaslab_sz;
350 ZTEST_META_DNODE = 0,
355 static void usage(boolean_t) __NORETURN;
358 * These libumem hooks provide a reasonable set of defaults for the allocator's
359 * debugging facilities.
364 return ("default,verbose"); /* $UMEM_DEBUG setting */
368 _umem_logging_init(void)
370 return ("fail,contents"); /* $UMEM_LOGGING setting */
373 #define FATAL_MSG_SZ 1024
378 fatal(int do_perror, char *message, ...)
381 int save_errno = errno;
382 char buf[FATAL_MSG_SZ];
384 (void) fflush(stdout);
386 va_start(args, message);
387 (void) sprintf(buf, "ztest: ");
389 (void) vsprintf(buf + strlen(buf), message, args);
392 (void) snprintf(buf + strlen(buf), FATAL_MSG_SZ - strlen(buf),
393 ": %s", strerror(save_errno));
395 (void) fprintf(stderr, "%s\n", buf);
396 fatal_msg = buf; /* to ease debugging */
403 str2shift(const char *buf)
405 const char *ends = "BKMGTPEZ";
410 for (i = 0; i < strlen(ends); i++) {
411 if (toupper(buf[0]) == ends[i])
414 if (i == strlen(ends)) {
415 (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n",
419 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0')) {
422 (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n", buf);
428 nicenumtoull(const char *buf)
433 val = strtoull(buf, &end, 0);
435 (void) fprintf(stderr, "ztest: bad numeric value: %s\n", buf);
437 } else if (end[0] == '.') {
438 double fval = strtod(buf, &end);
439 fval *= pow(2, str2shift(end));
440 if (fval > UINT64_MAX) {
441 (void) fprintf(stderr, "ztest: value too large: %s\n",
445 val = (uint64_t)fval;
447 int shift = str2shift(end);
448 if (shift >= 64 || (val << shift) >> shift != val) {
449 (void) fprintf(stderr, "ztest: value too large: %s\n",
459 usage(boolean_t requested)
461 char nice_vdev_size[10];
462 char nice_gang_bang[10];
463 FILE *fp = requested ? stdout : stderr;
465 nicenum(zopt_vdev_size, nice_vdev_size);
466 nicenum(metaslab_gang_bang, nice_gang_bang);
468 (void) fprintf(fp, "Usage: %s\n"
469 "\t[-v vdevs (default: %llu)]\n"
470 "\t[-s size_of_each_vdev (default: %s)]\n"
471 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
472 "\t[-m mirror_copies (default: %d)]\n"
473 "\t[-r raidz_disks (default: %d)]\n"
474 "\t[-R raidz_parity (default: %d)]\n"
475 "\t[-d datasets (default: %d)]\n"
476 "\t[-t threads (default: %d)]\n"
477 "\t[-g gang_block_threshold (default: %s)]\n"
478 "\t[-i init_count (default: %d)] initialize pool i times\n"
479 "\t[-k kill_percentage (default: %llu%%)]\n"
480 "\t[-p pool_name (default: %s)]\n"
481 "\t[-f dir (default: %s)] file directory for vdev files\n"
482 "\t[-V] verbose (use multiple times for ever more blather)\n"
483 "\t[-E] use existing pool instead of creating new one\n"
484 "\t[-T time (default: %llu sec)] total run time\n"
485 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
486 "\t[-P passtime (default: %llu sec)] time per pass\n"
487 "\t[-h] (print help)\n"
490 (u_longlong_t)zopt_vdevs, /* -v */
491 nice_vdev_size, /* -s */
492 zopt_ashift, /* -a */
493 zopt_mirrors, /* -m */
495 zopt_raidz_parity, /* -R */
496 zopt_datasets, /* -d */
497 zopt_threads, /* -t */
498 nice_gang_bang, /* -g */
500 (u_longlong_t)zopt_killrate, /* -k */
503 (u_longlong_t)zopt_time, /* -T */
504 (u_longlong_t)zopt_maxloops, /* -F */
505 (u_longlong_t)zopt_passtime); /* -P */
506 exit(requested ? 0 : 1);
510 process_options(int argc, char **argv)
515 /* By default, test gang blocks for blocks 32K and greater */
516 metaslab_gang_bang = 32 << 10;
518 while ((opt = getopt(argc, argv,
519 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:")) != EOF) {
536 value = nicenumtoull(optarg);
543 zopt_vdev_size = MAX(SPA_MINDEVSIZE, value);
549 zopt_mirrors = value;
552 zopt_raidz = MAX(1, value);
555 zopt_raidz_parity = MIN(MAX(value, 1), 3);
558 zopt_datasets = MAX(1, value);
561 zopt_threads = MAX(1, value);
564 metaslab_gang_bang = MAX(SPA_MINBLOCKSIZE << 1, value);
570 zopt_killrate = value;
573 zopt_pool = strdup(optarg);
576 zopt_dir = strdup(optarg);
588 zopt_passtime = MAX(1, value);
591 zopt_maxloops = MAX(1, value);
603 zopt_raidz_parity = MIN(zopt_raidz_parity, zopt_raidz - 1);
605 zopt_vdevtime = (zopt_vdevs > 0 ? zopt_time * NANOSEC / zopt_vdevs :
610 ztest_kill(ztest_shared_t *zs)
612 zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(zs->zs_spa));
613 zs->zs_space = metaslab_class_get_space(spa_normal_class(zs->zs_spa));
614 (void) kill(getpid(), SIGKILL);
618 ztest_random(uint64_t range)
625 if (read(ztest_random_fd, &r, sizeof (r)) != sizeof (r))
626 fatal(1, "short read from /dev/urandom");
633 ztest_record_enospc(const char *s)
635 ztest_shared->zs_enospc_count++;
639 ztest_get_ashift(void)
641 if (zopt_ashift == 0)
642 return (SPA_MINBLOCKSHIFT + ztest_random(3));
643 return (zopt_ashift);
647 make_vdev_file(char *path, char *aux, size_t size, uint64_t ashift)
649 char pathbuf[MAXPATHLEN];
654 ashift = ztest_get_ashift();
660 vdev = ztest_shared->zs_vdev_aux;
661 (void) sprintf(path, ztest_aux_template,
662 zopt_dir, zopt_pool, aux, vdev);
664 vdev = ztest_shared->zs_vdev_next_leaf++;
665 (void) sprintf(path, ztest_dev_template,
666 zopt_dir, zopt_pool, vdev);
671 int fd = open(path, O_RDWR | O_CREAT | O_TRUNC, 0666);
673 fatal(1, "can't open %s", path);
674 if (ftruncate(fd, size) != 0)
675 fatal(1, "can't ftruncate %s", path);
679 VERIFY(nvlist_alloc(&file, NV_UNIQUE_NAME, 0) == 0);
680 VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_TYPE, VDEV_TYPE_FILE) == 0);
681 VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_PATH, path) == 0);
682 VERIFY(nvlist_add_uint64(file, ZPOOL_CONFIG_ASHIFT, ashift) == 0);
688 make_vdev_raidz(char *path, char *aux, size_t size, uint64_t ashift, int r)
690 nvlist_t *raidz, **child;
694 return (make_vdev_file(path, aux, size, ashift));
695 child = umem_alloc(r * sizeof (nvlist_t *), UMEM_NOFAIL);
697 for (c = 0; c < r; c++)
698 child[c] = make_vdev_file(path, aux, size, ashift);
700 VERIFY(nvlist_alloc(&raidz, NV_UNIQUE_NAME, 0) == 0);
701 VERIFY(nvlist_add_string(raidz, ZPOOL_CONFIG_TYPE,
702 VDEV_TYPE_RAIDZ) == 0);
703 VERIFY(nvlist_add_uint64(raidz, ZPOOL_CONFIG_NPARITY,
704 zopt_raidz_parity) == 0);
705 VERIFY(nvlist_add_nvlist_array(raidz, ZPOOL_CONFIG_CHILDREN,
708 for (c = 0; c < r; c++)
709 nvlist_free(child[c]);
711 umem_free(child, r * sizeof (nvlist_t *));
717 make_vdev_mirror(char *path, char *aux, size_t size, uint64_t ashift,
720 nvlist_t *mirror, **child;
724 return (make_vdev_raidz(path, aux, size, ashift, r));
726 child = umem_alloc(m * sizeof (nvlist_t *), UMEM_NOFAIL);
728 for (c = 0; c < m; c++)
729 child[c] = make_vdev_raidz(path, aux, size, ashift, r);
731 VERIFY(nvlist_alloc(&mirror, NV_UNIQUE_NAME, 0) == 0);
732 VERIFY(nvlist_add_string(mirror, ZPOOL_CONFIG_TYPE,
733 VDEV_TYPE_MIRROR) == 0);
734 VERIFY(nvlist_add_nvlist_array(mirror, ZPOOL_CONFIG_CHILDREN,
737 for (c = 0; c < m; c++)
738 nvlist_free(child[c]);
740 umem_free(child, m * sizeof (nvlist_t *));
746 make_vdev_root(char *path, char *aux, size_t size, uint64_t ashift,
747 int log, int r, int m, int t)
749 nvlist_t *root, **child;
754 child = umem_alloc(t * sizeof (nvlist_t *), UMEM_NOFAIL);
756 for (c = 0; c < t; c++) {
757 child[c] = make_vdev_mirror(path, aux, size, ashift, r, m);
758 VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
762 VERIFY(nvlist_alloc(&root, NV_UNIQUE_NAME, 0) == 0);
763 VERIFY(nvlist_add_string(root, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) == 0);
764 VERIFY(nvlist_add_nvlist_array(root, aux ? aux : ZPOOL_CONFIG_CHILDREN,
767 for (c = 0; c < t; c++)
768 nvlist_free(child[c]);
770 umem_free(child, t * sizeof (nvlist_t *));
776 ztest_random_blocksize(void)
778 return (1 << (SPA_MINBLOCKSHIFT +
779 ztest_random(SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1)));
783 ztest_random_ibshift(void)
785 return (DN_MIN_INDBLKSHIFT +
786 ztest_random(DN_MAX_INDBLKSHIFT - DN_MIN_INDBLKSHIFT + 1));
790 ztest_random_vdev_top(spa_t *spa, boolean_t log_ok)
793 vdev_t *rvd = spa->spa_root_vdev;
796 ASSERT(spa_config_held(spa, SCL_ALL, RW_READER) != 0);
799 top = ztest_random(rvd->vdev_children);
800 tvd = rvd->vdev_child[top];
801 } while (tvd->vdev_ishole || (tvd->vdev_islog && !log_ok) ||
802 tvd->vdev_mg == NULL || tvd->vdev_mg->mg_class == NULL);
808 ztest_random_dsl_prop(zfs_prop_t prop)
813 value = zfs_prop_random_value(prop, ztest_random(-1ULL));
814 } while (prop == ZFS_PROP_CHECKSUM && value == ZIO_CHECKSUM_OFF);
820 ztest_dsl_prop_set_uint64(char *osname, zfs_prop_t prop, uint64_t value,
823 const char *propname = zfs_prop_to_name(prop);
825 char setpoint[MAXPATHLEN];
829 error = dsl_prop_set(osname, propname,
830 (inherit ? ZPROP_SRC_NONE : ZPROP_SRC_LOCAL),
831 sizeof (value), 1, &value);
833 if (error == ENOSPC) {
834 ztest_record_enospc(FTAG);
837 ASSERT3U(error, ==, 0);
839 VERIFY3U(dsl_prop_get(osname, propname, sizeof (curval),
840 1, &curval, setpoint), ==, 0);
842 if (zopt_verbose >= 6) {
843 VERIFY(zfs_prop_index_to_string(prop, curval, &valname) == 0);
844 (void) printf("%s %s = %s at '%s'\n",
845 osname, propname, valname, setpoint);
852 ztest_spa_prop_set_uint64(ztest_shared_t *zs, zpool_prop_t prop, uint64_t value)
854 spa_t *spa = zs->zs_spa;
855 nvlist_t *props = NULL;
858 VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0);
859 VERIFY(nvlist_add_uint64(props, zpool_prop_to_name(prop), value) == 0);
861 error = spa_prop_set(spa, props);
865 if (error == ENOSPC) {
866 ztest_record_enospc(FTAG);
869 ASSERT3U(error, ==, 0);
875 ztest_rll_init(rll_t *rll)
877 rll->rll_writer = NULL;
878 rll->rll_readers = 0;
879 VERIFY(_mutex_init(&rll->rll_lock, USYNC_THREAD, NULL) == 0);
880 VERIFY(cond_init(&rll->rll_cv, USYNC_THREAD, NULL) == 0);
884 ztest_rll_destroy(rll_t *rll)
886 ASSERT(rll->rll_writer == NULL);
887 ASSERT(rll->rll_readers == 0);
888 VERIFY(_mutex_destroy(&rll->rll_lock) == 0);
889 VERIFY(cond_destroy(&rll->rll_cv) == 0);
893 ztest_rll_lock(rll_t *rll, rl_type_t type)
895 VERIFY(mutex_lock(&rll->rll_lock) == 0);
897 if (type == RL_READER) {
898 while (rll->rll_writer != NULL)
899 (void) cond_wait(&rll->rll_cv, &rll->rll_lock);
902 while (rll->rll_writer != NULL || rll->rll_readers)
903 (void) cond_wait(&rll->rll_cv, &rll->rll_lock);
904 rll->rll_writer = curthread;
907 VERIFY(mutex_unlock(&rll->rll_lock) == 0);
911 ztest_rll_unlock(rll_t *rll)
913 VERIFY(mutex_lock(&rll->rll_lock) == 0);
915 if (rll->rll_writer) {
916 ASSERT(rll->rll_readers == 0);
917 rll->rll_writer = NULL;
919 ASSERT(rll->rll_readers != 0);
920 ASSERT(rll->rll_writer == NULL);
924 if (rll->rll_writer == NULL && rll->rll_readers == 0)
925 VERIFY(cond_broadcast(&rll->rll_cv) == 0);
927 VERIFY(mutex_unlock(&rll->rll_lock) == 0);
931 ztest_object_lock(ztest_ds_t *zd, uint64_t object, rl_type_t type)
933 rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)];
935 ztest_rll_lock(rll, type);
939 ztest_object_unlock(ztest_ds_t *zd, uint64_t object)
941 rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)];
943 ztest_rll_unlock(rll);
947 ztest_range_lock(ztest_ds_t *zd, uint64_t object, uint64_t offset,
948 uint64_t size, rl_type_t type)
950 uint64_t hash = object ^ (offset % (ZTEST_RANGE_LOCKS + 1));
951 rll_t *rll = &zd->zd_range_lock[hash & (ZTEST_RANGE_LOCKS - 1)];
954 rl = umem_alloc(sizeof (*rl), UMEM_NOFAIL);
955 rl->rl_object = object;
956 rl->rl_offset = offset;
960 ztest_rll_lock(rll, type);
966 ztest_range_unlock(rl_t *rl)
968 rll_t *rll = rl->rl_lock;
970 ztest_rll_unlock(rll);
972 umem_free(rl, sizeof (*rl));
976 ztest_zd_init(ztest_ds_t *zd, objset_t *os)
979 zd->zd_zilog = dmu_objset_zil(os);
981 dmu_objset_name(os, zd->zd_name);
983 VERIFY(_mutex_init(&zd->zd_dirobj_lock, USYNC_THREAD, NULL) == 0);
985 for (int l = 0; l < ZTEST_OBJECT_LOCKS; l++)
986 ztest_rll_init(&zd->zd_object_lock[l]);
988 for (int l = 0; l < ZTEST_RANGE_LOCKS; l++)
989 ztest_rll_init(&zd->zd_range_lock[l]);
993 ztest_zd_fini(ztest_ds_t *zd)
995 VERIFY(_mutex_destroy(&zd->zd_dirobj_lock) == 0);
997 for (int l = 0; l < ZTEST_OBJECT_LOCKS; l++)
998 ztest_rll_destroy(&zd->zd_object_lock[l]);
1000 for (int l = 0; l < ZTEST_RANGE_LOCKS; l++)
1001 ztest_rll_destroy(&zd->zd_range_lock[l]);
1004 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1007 ztest_tx_assign(dmu_tx_t *tx, uint64_t txg_how, const char *tag)
1013 * Attempt to assign tx to some transaction group.
1015 error = dmu_tx_assign(tx, txg_how);
1017 if (error == ERESTART) {
1018 ASSERT(txg_how == TXG_NOWAIT);
1021 ASSERT3U(error, ==, ENOSPC);
1022 ztest_record_enospc(tag);
1027 txg = dmu_tx_get_txg(tx);
1033 ztest_pattern_set(void *buf, uint64_t size, uint64_t value)
1036 uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size);
1043 ztest_pattern_match(void *buf, uint64_t size, uint64_t value)
1046 uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size);
1050 diff |= (value - *ip++);
1056 ztest_bt_generate(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
1057 uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg)
1059 bt->bt_magic = BT_MAGIC;
1060 bt->bt_objset = dmu_objset_id(os);
1061 bt->bt_object = object;
1062 bt->bt_offset = offset;
1065 bt->bt_crtxg = crtxg;
1069 ztest_bt_verify(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
1070 uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg)
1072 ASSERT(bt->bt_magic == BT_MAGIC);
1073 ASSERT(bt->bt_objset == dmu_objset_id(os));
1074 ASSERT(bt->bt_object == object);
1075 ASSERT(bt->bt_offset == offset);
1076 ASSERT(bt->bt_gen <= gen);
1077 ASSERT(bt->bt_txg <= txg);
1078 ASSERT(bt->bt_crtxg == crtxg);
1081 static ztest_block_tag_t *
1082 ztest_bt_bonus(dmu_buf_t *db)
1084 dmu_object_info_t doi;
1085 ztest_block_tag_t *bt;
1087 dmu_object_info_from_db(db, &doi);
1088 ASSERT3U(doi.doi_bonus_size, <=, db->db_size);
1089 ASSERT3U(doi.doi_bonus_size, >=, sizeof (*bt));
1090 bt = (void *)((char *)db->db_data + doi.doi_bonus_size - sizeof (*bt));
1099 #define lrz_type lr_mode
1100 #define lrz_blocksize lr_uid
1101 #define lrz_ibshift lr_gid
1102 #define lrz_bonustype lr_rdev
1103 #define lrz_bonuslen lr_crtime[1]
1106 ztest_log_create(ztest_ds_t *zd, dmu_tx_t *tx, lr_create_t *lr)
1108 char *name = (void *)(lr + 1); /* name follows lr */
1109 size_t namesize = strlen(name) + 1;
1112 if (zil_replaying(zd->zd_zilog, tx))
1115 itx = zil_itx_create(TX_CREATE, sizeof (*lr) + namesize);
1116 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1117 sizeof (*lr) + namesize - sizeof (lr_t));
1119 return (zil_itx_assign(zd->zd_zilog, itx, tx));
1123 ztest_log_remove(ztest_ds_t *zd, dmu_tx_t *tx, lr_remove_t *lr)
1125 char *name = (void *)(lr + 1); /* name follows lr */
1126 size_t namesize = strlen(name) + 1;
1129 if (zil_replaying(zd->zd_zilog, tx))
1132 itx = zil_itx_create(TX_REMOVE, sizeof (*lr) + namesize);
1133 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1134 sizeof (*lr) + namesize - sizeof (lr_t));
1136 return (zil_itx_assign(zd->zd_zilog, itx, tx));
1140 ztest_log_write(ztest_ds_t *zd, dmu_tx_t *tx, lr_write_t *lr)
1143 itx_wr_state_t write_state = ztest_random(WR_NUM_STATES);
1145 if (zil_replaying(zd->zd_zilog, tx))
1148 if (lr->lr_length > ZIL_MAX_LOG_DATA)
1149 write_state = WR_INDIRECT;
1151 itx = zil_itx_create(TX_WRITE,
1152 sizeof (*lr) + (write_state == WR_COPIED ? lr->lr_length : 0));
1154 if (write_state == WR_COPIED &&
1155 dmu_read(zd->zd_os, lr->lr_foid, lr->lr_offset, lr->lr_length,
1156 ((lr_write_t *)&itx->itx_lr) + 1, DMU_READ_NO_PREFETCH) != 0) {
1157 zil_itx_destroy(itx);
1158 itx = zil_itx_create(TX_WRITE, sizeof (*lr));
1159 write_state = WR_NEED_COPY;
1161 itx->itx_private = zd;
1162 itx->itx_wr_state = write_state;
1163 itx->itx_sync = (ztest_random(8) == 0);
1164 itx->itx_sod += (write_state == WR_NEED_COPY ? lr->lr_length : 0);
1166 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1167 sizeof (*lr) - sizeof (lr_t));
1169 return (zil_itx_assign(zd->zd_zilog, itx, tx));
1173 ztest_log_truncate(ztest_ds_t *zd, dmu_tx_t *tx, lr_truncate_t *lr)
1177 if (zil_replaying(zd->zd_zilog, tx))
1180 itx = zil_itx_create(TX_TRUNCATE, sizeof (*lr));
1181 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1182 sizeof (*lr) - sizeof (lr_t));
1184 return (zil_itx_assign(zd->zd_zilog, itx, tx));
1188 ztest_log_setattr(ztest_ds_t *zd, dmu_tx_t *tx, lr_setattr_t *lr)
1192 if (zil_replaying(zd->zd_zilog, tx))
1195 itx = zil_itx_create(TX_SETATTR, sizeof (*lr));
1196 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1197 sizeof (*lr) - sizeof (lr_t));
1199 return (zil_itx_assign(zd->zd_zilog, itx, tx));
1206 ztest_replay_create(ztest_ds_t *zd, lr_create_t *lr, boolean_t byteswap)
1208 char *name = (void *)(lr + 1); /* name follows lr */
1209 objset_t *os = zd->zd_os;
1210 ztest_block_tag_t *bbt;
1217 byteswap_uint64_array(lr, sizeof (*lr));
1219 ASSERT(lr->lr_doid == ZTEST_DIROBJ);
1220 ASSERT(name[0] != '\0');
1222 tx = dmu_tx_create(os);
1224 dmu_tx_hold_zap(tx, lr->lr_doid, B_TRUE, name);
1226 if (lr->lrz_type == DMU_OT_ZAP_OTHER) {
1227 dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL);
1229 dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT);
1232 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1236 ASSERT(dmu_objset_zil(os)->zl_replay == !!lr->lr_foid);
1238 if (lr->lrz_type == DMU_OT_ZAP_OTHER) {
1239 if (lr->lr_foid == 0) {
1240 lr->lr_foid = zap_create(os,
1241 lr->lrz_type, lr->lrz_bonustype,
1242 lr->lrz_bonuslen, tx);
1244 error = zap_create_claim(os, lr->lr_foid,
1245 lr->lrz_type, lr->lrz_bonustype,
1246 lr->lrz_bonuslen, tx);
1249 if (lr->lr_foid == 0) {
1250 lr->lr_foid = dmu_object_alloc(os,
1251 lr->lrz_type, 0, lr->lrz_bonustype,
1252 lr->lrz_bonuslen, tx);
1254 error = dmu_object_claim(os, lr->lr_foid,
1255 lr->lrz_type, 0, lr->lrz_bonustype,
1256 lr->lrz_bonuslen, tx);
1261 ASSERT3U(error, ==, EEXIST);
1262 ASSERT(zd->zd_zilog->zl_replay);
1267 ASSERT(lr->lr_foid != 0);
1269 if (lr->lrz_type != DMU_OT_ZAP_OTHER)
1270 VERIFY3U(0, ==, dmu_object_set_blocksize(os, lr->lr_foid,
1271 lr->lrz_blocksize, lr->lrz_ibshift, tx));
1273 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1274 bbt = ztest_bt_bonus(db);
1275 dmu_buf_will_dirty(db, tx);
1276 ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_gen, txg, txg);
1277 dmu_buf_rele(db, FTAG);
1279 VERIFY3U(0, ==, zap_add(os, lr->lr_doid, name, sizeof (uint64_t), 1,
1282 (void) ztest_log_create(zd, tx, lr);
1290 ztest_replay_remove(ztest_ds_t *zd, lr_remove_t *lr, boolean_t byteswap)
1292 char *name = (void *)(lr + 1); /* name follows lr */
1293 objset_t *os = zd->zd_os;
1294 dmu_object_info_t doi;
1296 uint64_t object, txg;
1299 byteswap_uint64_array(lr, sizeof (*lr));
1301 ASSERT(lr->lr_doid == ZTEST_DIROBJ);
1302 ASSERT(name[0] != '\0');
1305 zap_lookup(os, lr->lr_doid, name, sizeof (object), 1, &object));
1306 ASSERT(object != 0);
1308 ztest_object_lock(zd, object, RL_WRITER);
1310 VERIFY3U(0, ==, dmu_object_info(os, object, &doi));
1312 tx = dmu_tx_create(os);
1314 dmu_tx_hold_zap(tx, lr->lr_doid, B_FALSE, name);
1315 dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END);
1317 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1319 ztest_object_unlock(zd, object);
1323 if (doi.doi_type == DMU_OT_ZAP_OTHER) {
1324 VERIFY3U(0, ==, zap_destroy(os, object, tx));
1326 VERIFY3U(0, ==, dmu_object_free(os, object, tx));
1329 VERIFY3U(0, ==, zap_remove(os, lr->lr_doid, name, tx));
1331 (void) ztest_log_remove(zd, tx, lr);
1335 ztest_object_unlock(zd, object);
1341 ztest_replay_write(ztest_ds_t *zd, lr_write_t *lr, boolean_t byteswap)
1343 objset_t *os = zd->zd_os;
1344 void *data = lr + 1; /* data follows lr */
1345 uint64_t offset, length;
1346 ztest_block_tag_t *bt = data;
1347 ztest_block_tag_t *bbt;
1348 uint64_t gen, txg, lrtxg, crtxg;
1349 dmu_object_info_t doi;
1352 arc_buf_t *abuf = NULL;
1356 byteswap_uint64_array(lr, sizeof (*lr));
1358 offset = lr->lr_offset;
1359 length = lr->lr_length;
1361 /* If it's a dmu_sync() block, write the whole block */
1362 if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
1363 uint64_t blocksize = BP_GET_LSIZE(&lr->lr_blkptr);
1364 if (length < blocksize) {
1365 offset -= offset % blocksize;
1370 if (bt->bt_magic == BSWAP_64(BT_MAGIC))
1371 byteswap_uint64_array(bt, sizeof (*bt));
1373 if (bt->bt_magic != BT_MAGIC)
1376 ztest_object_lock(zd, lr->lr_foid, RL_READER);
1377 rl = ztest_range_lock(zd, lr->lr_foid, offset, length, RL_WRITER);
1379 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1381 dmu_object_info_from_db(db, &doi);
1383 bbt = ztest_bt_bonus(db);
1384 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1386 crtxg = bbt->bt_crtxg;
1387 lrtxg = lr->lr_common.lrc_txg;
1389 tx = dmu_tx_create(os);
1391 dmu_tx_hold_write(tx, lr->lr_foid, offset, length);
1393 if (ztest_random(8) == 0 && length == doi.doi_data_block_size &&
1394 P2PHASE(offset, length) == 0)
1395 abuf = dmu_request_arcbuf(db, length);
1397 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1400 dmu_return_arcbuf(abuf);
1401 dmu_buf_rele(db, FTAG);
1402 ztest_range_unlock(rl);
1403 ztest_object_unlock(zd, lr->lr_foid);
1409 * Usually, verify the old data before writing new data --
1410 * but not always, because we also want to verify correct
1411 * behavior when the data was not recently read into cache.
1413 ASSERT(offset % doi.doi_data_block_size == 0);
1414 if (ztest_random(4) != 0) {
1415 int prefetch = ztest_random(2) ?
1416 DMU_READ_PREFETCH : DMU_READ_NO_PREFETCH;
1417 ztest_block_tag_t rbt;
1419 VERIFY(dmu_read(os, lr->lr_foid, offset,
1420 sizeof (rbt), &rbt, prefetch) == 0);
1421 if (rbt.bt_magic == BT_MAGIC) {
1422 ztest_bt_verify(&rbt, os, lr->lr_foid,
1423 offset, gen, txg, crtxg);
1428 * Writes can appear to be newer than the bonus buffer because
1429 * the ztest_get_data() callback does a dmu_read() of the
1430 * open-context data, which may be different than the data
1431 * as it was when the write was generated.
1433 if (zd->zd_zilog->zl_replay) {
1434 ztest_bt_verify(bt, os, lr->lr_foid, offset,
1435 MAX(gen, bt->bt_gen), MAX(txg, lrtxg),
1440 * Set the bt's gen/txg to the bonus buffer's gen/txg
1441 * so that all of the usual ASSERTs will work.
1443 ztest_bt_generate(bt, os, lr->lr_foid, offset, gen, txg, crtxg);
1447 dmu_write(os, lr->lr_foid, offset, length, data, tx);
1449 bcopy(data, abuf->b_data, length);
1450 dmu_assign_arcbuf(db, offset, abuf, tx);
1453 (void) ztest_log_write(zd, tx, lr);
1455 dmu_buf_rele(db, FTAG);
1459 ztest_range_unlock(rl);
1460 ztest_object_unlock(zd, lr->lr_foid);
1466 ztest_replay_truncate(ztest_ds_t *zd, lr_truncate_t *lr, boolean_t byteswap)
1468 objset_t *os = zd->zd_os;
1474 byteswap_uint64_array(lr, sizeof (*lr));
1476 ztest_object_lock(zd, lr->lr_foid, RL_READER);
1477 rl = ztest_range_lock(zd, lr->lr_foid, lr->lr_offset, lr->lr_length,
1480 tx = dmu_tx_create(os);
1482 dmu_tx_hold_free(tx, lr->lr_foid, lr->lr_offset, lr->lr_length);
1484 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1486 ztest_range_unlock(rl);
1487 ztest_object_unlock(zd, lr->lr_foid);
1491 VERIFY(dmu_free_range(os, lr->lr_foid, lr->lr_offset,
1492 lr->lr_length, tx) == 0);
1494 (void) ztest_log_truncate(zd, tx, lr);
1498 ztest_range_unlock(rl);
1499 ztest_object_unlock(zd, lr->lr_foid);
1505 ztest_replay_setattr(ztest_ds_t *zd, lr_setattr_t *lr, boolean_t byteswap)
1507 objset_t *os = zd->zd_os;
1510 ztest_block_tag_t *bbt;
1511 uint64_t txg, lrtxg, crtxg;
1514 byteswap_uint64_array(lr, sizeof (*lr));
1516 ztest_object_lock(zd, lr->lr_foid, RL_WRITER);
1518 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1520 tx = dmu_tx_create(os);
1521 dmu_tx_hold_bonus(tx, lr->lr_foid);
1523 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1525 dmu_buf_rele(db, FTAG);
1526 ztest_object_unlock(zd, lr->lr_foid);
1530 bbt = ztest_bt_bonus(db);
1531 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1532 crtxg = bbt->bt_crtxg;
1533 lrtxg = lr->lr_common.lrc_txg;
1535 if (zd->zd_zilog->zl_replay) {
1536 ASSERT(lr->lr_size != 0);
1537 ASSERT(lr->lr_mode != 0);
1541 * Randomly change the size and increment the generation.
1543 lr->lr_size = (ztest_random(db->db_size / sizeof (*bbt)) + 1) *
1545 lr->lr_mode = bbt->bt_gen + 1;
1550 * Verify that the current bonus buffer is not newer than our txg.
1552 ztest_bt_verify(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode,
1553 MAX(txg, lrtxg), crtxg);
1555 dmu_buf_will_dirty(db, tx);
1557 ASSERT3U(lr->lr_size, >=, sizeof (*bbt));
1558 ASSERT3U(lr->lr_size, <=, db->db_size);
1559 VERIFY3U(dmu_set_bonus(db, lr->lr_size, tx), ==, 0);
1560 bbt = ztest_bt_bonus(db);
1562 ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode, txg, crtxg);
1564 dmu_buf_rele(db, FTAG);
1566 (void) ztest_log_setattr(zd, tx, lr);
1570 ztest_object_unlock(zd, lr->lr_foid);
1575 zil_replay_func_t *ztest_replay_vector[TX_MAX_TYPE] = {
1576 NULL, /* 0 no such transaction type */
1577 ztest_replay_create, /* TX_CREATE */
1578 NULL, /* TX_MKDIR */
1579 NULL, /* TX_MKXATTR */
1580 NULL, /* TX_SYMLINK */
1581 ztest_replay_remove, /* TX_REMOVE */
1582 NULL, /* TX_RMDIR */
1584 NULL, /* TX_RENAME */
1585 ztest_replay_write, /* TX_WRITE */
1586 ztest_replay_truncate, /* TX_TRUNCATE */
1587 ztest_replay_setattr, /* TX_SETATTR */
1589 NULL, /* TX_CREATE_ACL */
1590 NULL, /* TX_CREATE_ATTR */
1591 NULL, /* TX_CREATE_ACL_ATTR */
1592 NULL, /* TX_MKDIR_ACL */
1593 NULL, /* TX_MKDIR_ATTR */
1594 NULL, /* TX_MKDIR_ACL_ATTR */
1595 NULL, /* TX_WRITE2 */
1599 * ZIL get_data callbacks
1603 ztest_get_done(zgd_t *zgd, int error)
1605 ztest_ds_t *zd = zgd->zgd_private;
1606 uint64_t object = zgd->zgd_rl->rl_object;
1609 dmu_buf_rele(zgd->zgd_db, zgd);
1611 ztest_range_unlock(zgd->zgd_rl);
1612 ztest_object_unlock(zd, object);
1614 if (error == 0 && zgd->zgd_bp)
1615 zil_add_block(zgd->zgd_zilog, zgd->zgd_bp);
1617 umem_free(zgd, sizeof (*zgd));
1621 ztest_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio)
1623 ztest_ds_t *zd = arg;
1624 objset_t *os = zd->zd_os;
1625 uint64_t object = lr->lr_foid;
1626 uint64_t offset = lr->lr_offset;
1627 uint64_t size = lr->lr_length;
1628 blkptr_t *bp = &lr->lr_blkptr;
1629 uint64_t txg = lr->lr_common.lrc_txg;
1631 dmu_object_info_t doi;
1636 ztest_object_lock(zd, object, RL_READER);
1637 error = dmu_bonus_hold(os, object, FTAG, &db);
1639 ztest_object_unlock(zd, object);
1643 crtxg = ztest_bt_bonus(db)->bt_crtxg;
1645 if (crtxg == 0 || crtxg > txg) {
1646 dmu_buf_rele(db, FTAG);
1647 ztest_object_unlock(zd, object);
1651 dmu_object_info_from_db(db, &doi);
1652 dmu_buf_rele(db, FTAG);
1655 zgd = umem_zalloc(sizeof (*zgd), UMEM_NOFAIL);
1656 zgd->zgd_zilog = zd->zd_zilog;
1657 zgd->zgd_private = zd;
1659 if (buf != NULL) { /* immediate write */
1660 zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
1663 error = dmu_read(os, object, offset, size, buf,
1664 DMU_READ_NO_PREFETCH);
1667 size = doi.doi_data_block_size;
1669 offset = P2ALIGN(offset, size);
1671 ASSERT(offset < size);
1675 zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
1678 error = dmu_buf_hold(os, object, offset, zgd, &db,
1679 DMU_READ_NO_PREFETCH);
1685 ASSERT(db->db_offset == offset);
1686 ASSERT(db->db_size == size);
1688 error = dmu_sync(zio, lr->lr_common.lrc_txg,
1689 ztest_get_done, zgd);
1696 ztest_get_done(zgd, error);
1702 ztest_lr_alloc(size_t lrsize, char *name)
1705 size_t namesize = name ? strlen(name) + 1 : 0;
1707 lr = umem_zalloc(lrsize + namesize, UMEM_NOFAIL);
1710 bcopy(name, lr + lrsize, namesize);
1716 ztest_lr_free(void *lr, size_t lrsize, char *name)
1718 size_t namesize = name ? strlen(name) + 1 : 0;
1720 umem_free(lr, lrsize + namesize);
1724 * Lookup a bunch of objects. Returns the number of objects not found.
1727 ztest_lookup(ztest_ds_t *zd, ztest_od_t *od, int count)
1732 ASSERT(_mutex_held(&zd->zd_dirobj_lock));
1734 for (int i = 0; i < count; i++, od++) {
1736 error = zap_lookup(zd->zd_os, od->od_dir, od->od_name,
1737 sizeof (uint64_t), 1, &od->od_object);
1739 ASSERT(error == ENOENT);
1740 ASSERT(od->od_object == 0);
1744 ztest_block_tag_t *bbt;
1745 dmu_object_info_t doi;
1747 ASSERT(od->od_object != 0);
1748 ASSERT(missing == 0); /* there should be no gaps */
1750 ztest_object_lock(zd, od->od_object, RL_READER);
1751 VERIFY3U(0, ==, dmu_bonus_hold(zd->zd_os,
1752 od->od_object, FTAG, &db));
1753 dmu_object_info_from_db(db, &doi);
1754 bbt = ztest_bt_bonus(db);
1755 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1756 od->od_type = doi.doi_type;
1757 od->od_blocksize = doi.doi_data_block_size;
1758 od->od_gen = bbt->bt_gen;
1759 dmu_buf_rele(db, FTAG);
1760 ztest_object_unlock(zd, od->od_object);
1768 ztest_create(ztest_ds_t *zd, ztest_od_t *od, int count)
1772 ASSERT(_mutex_held(&zd->zd_dirobj_lock));
1774 for (int i = 0; i < count; i++, od++) {
1781 lr_create_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
1783 lr->lr_doid = od->od_dir;
1784 lr->lr_foid = 0; /* 0 to allocate, > 0 to claim */
1785 lr->lrz_type = od->od_crtype;
1786 lr->lrz_blocksize = od->od_crblocksize;
1787 lr->lrz_ibshift = ztest_random_ibshift();
1788 lr->lrz_bonustype = DMU_OT_UINT64_OTHER;
1789 lr->lrz_bonuslen = dmu_bonus_max();
1790 lr->lr_gen = od->od_crgen;
1791 lr->lr_crtime[0] = time(NULL);
1793 if (ztest_replay_create(zd, lr, B_FALSE) != 0) {
1794 ASSERT(missing == 0);
1798 od->od_object = lr->lr_foid;
1799 od->od_type = od->od_crtype;
1800 od->od_blocksize = od->od_crblocksize;
1801 od->od_gen = od->od_crgen;
1802 ASSERT(od->od_object != 0);
1805 ztest_lr_free(lr, sizeof (*lr), od->od_name);
1812 ztest_remove(ztest_ds_t *zd, ztest_od_t *od, int count)
1817 ASSERT(_mutex_held(&zd->zd_dirobj_lock));
1821 for (int i = count - 1; i >= 0; i--, od--) {
1827 if (od->od_object == 0)
1830 lr_remove_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
1832 lr->lr_doid = od->od_dir;
1834 if ((error = ztest_replay_remove(zd, lr, B_FALSE)) != 0) {
1835 ASSERT3U(error, ==, ENOSPC);
1840 ztest_lr_free(lr, sizeof (*lr), od->od_name);
1847 ztest_write(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size,
1853 lr = ztest_lr_alloc(sizeof (*lr) + size, NULL);
1855 lr->lr_foid = object;
1856 lr->lr_offset = offset;
1857 lr->lr_length = size;
1859 BP_ZERO(&lr->lr_blkptr);
1861 bcopy(data, lr + 1, size);
1863 error = ztest_replay_write(zd, lr, B_FALSE);
1865 ztest_lr_free(lr, sizeof (*lr) + size, NULL);
1871 ztest_truncate(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
1876 lr = ztest_lr_alloc(sizeof (*lr), NULL);
1878 lr->lr_foid = object;
1879 lr->lr_offset = offset;
1880 lr->lr_length = size;
1882 error = ztest_replay_truncate(zd, lr, B_FALSE);
1884 ztest_lr_free(lr, sizeof (*lr), NULL);
1890 ztest_setattr(ztest_ds_t *zd, uint64_t object)
1895 lr = ztest_lr_alloc(sizeof (*lr), NULL);
1897 lr->lr_foid = object;
1901 error = ztest_replay_setattr(zd, lr, B_FALSE);
1903 ztest_lr_free(lr, sizeof (*lr), NULL);
1909 ztest_prealloc(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
1911 objset_t *os = zd->zd_os;
1916 txg_wait_synced(dmu_objset_pool(os), 0);
1918 ztest_object_lock(zd, object, RL_READER);
1919 rl = ztest_range_lock(zd, object, offset, size, RL_WRITER);
1921 tx = dmu_tx_create(os);
1923 dmu_tx_hold_write(tx, object, offset, size);
1925 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1928 dmu_prealloc(os, object, offset, size, tx);
1930 txg_wait_synced(dmu_objset_pool(os), txg);
1932 (void) dmu_free_long_range(os, object, offset, size);
1935 ztest_range_unlock(rl);
1936 ztest_object_unlock(zd, object);
1940 ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
1942 ztest_block_tag_t wbt;
1943 dmu_object_info_t doi;
1944 enum ztest_io_type io_type;
1948 VERIFY(dmu_object_info(zd->zd_os, object, &doi) == 0);
1949 blocksize = doi.doi_data_block_size;
1950 data = umem_alloc(blocksize, UMEM_NOFAIL);
1953 * Pick an i/o type at random, biased toward writing block tags.
1955 io_type = ztest_random(ZTEST_IO_TYPES);
1956 if (ztest_random(2) == 0)
1957 io_type = ZTEST_IO_WRITE_TAG;
1961 case ZTEST_IO_WRITE_TAG:
1962 ztest_bt_generate(&wbt, zd->zd_os, object, offset, 0, 0, 0);
1963 (void) ztest_write(zd, object, offset, sizeof (wbt), &wbt);
1966 case ZTEST_IO_WRITE_PATTERN:
1967 (void) memset(data, 'a' + (object + offset) % 5, blocksize);
1968 if (ztest_random(2) == 0) {
1970 * Induce fletcher2 collisions to ensure that
1971 * zio_ddt_collision() detects and resolves them
1972 * when using fletcher2-verify for deduplication.
1974 ((uint64_t *)data)[0] ^= 1ULL << 63;
1975 ((uint64_t *)data)[4] ^= 1ULL << 63;
1977 (void) ztest_write(zd, object, offset, blocksize, data);
1980 case ZTEST_IO_WRITE_ZEROES:
1981 bzero(data, blocksize);
1982 (void) ztest_write(zd, object, offset, blocksize, data);
1985 case ZTEST_IO_TRUNCATE:
1986 (void) ztest_truncate(zd, object, offset, blocksize);
1989 case ZTEST_IO_SETATTR:
1990 (void) ztest_setattr(zd, object);
1994 umem_free(data, blocksize);
1998 * Initialize an object description template.
2001 ztest_od_init(ztest_od_t *od, uint64_t id, char *tag, uint64_t index,
2002 dmu_object_type_t type, uint64_t blocksize, uint64_t gen)
2004 od->od_dir = ZTEST_DIROBJ;
2007 od->od_crtype = type;
2008 od->od_crblocksize = blocksize ? blocksize : ztest_random_blocksize();
2011 od->od_type = DMU_OT_NONE;
2012 od->od_blocksize = 0;
2015 (void) snprintf(od->od_name, sizeof (od->od_name), "%s(%lld)[%llu]",
2016 tag, (int64_t)id, index);
2020 * Lookup or create the objects for a test using the od template.
2021 * If the objects do not all exist, or if 'remove' is specified,
2022 * remove any existing objects and create new ones. Otherwise,
2023 * use the existing objects.
2026 ztest_object_init(ztest_ds_t *zd, ztest_od_t *od, size_t size, boolean_t remove)
2028 int count = size / sizeof (*od);
2031 VERIFY(mutex_lock(&zd->zd_dirobj_lock) == 0);
2032 if ((ztest_lookup(zd, od, count) != 0 || remove) &&
2033 (ztest_remove(zd, od, count) != 0 ||
2034 ztest_create(zd, od, count) != 0))
2037 VERIFY(mutex_unlock(&zd->zd_dirobj_lock) == 0);
2044 ztest_zil_commit(ztest_ds_t *zd, uint64_t id)
2046 zilog_t *zilog = zd->zd_zilog;
2048 zil_commit(zilog, UINT64_MAX, ztest_random(ZTEST_OBJECTS));
2051 * Remember the committed values in zd, which is in parent/child
2052 * shared memory. If we die, the next iteration of ztest_run()
2053 * will verify that the log really does contain this record.
2055 mutex_enter(&zilog->zl_lock);
2056 ASSERT(zd->zd_seq <= zilog->zl_commit_lr_seq);
2057 zd->zd_seq = zilog->zl_commit_lr_seq;
2058 mutex_exit(&zilog->zl_lock);
2062 * Verify that we can't destroy an active pool, create an existing pool,
2063 * or create a pool with a bad vdev spec.
2067 ztest_spa_create_destroy(ztest_ds_t *zd, uint64_t id)
2069 ztest_shared_t *zs = ztest_shared;
2074 * Attempt to create using a bad file.
2076 nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
2077 VERIFY3U(ENOENT, ==,
2078 spa_create("ztest_bad_file", nvroot, NULL, NULL, NULL));
2079 nvlist_free(nvroot);
2082 * Attempt to create using a bad mirror.
2084 nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 2, 1);
2085 VERIFY3U(ENOENT, ==,
2086 spa_create("ztest_bad_mirror", nvroot, NULL, NULL, NULL));
2087 nvlist_free(nvroot);
2090 * Attempt to create an existing pool. It shouldn't matter
2091 * what's in the nvroot; we should fail with EEXIST.
2093 (void) rw_rdlock(&zs->zs_name_lock);
2094 nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
2095 VERIFY3U(EEXIST, ==, spa_create(zs->zs_pool, nvroot, NULL, NULL, NULL));
2096 nvlist_free(nvroot);
2097 VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
2098 VERIFY3U(EBUSY, ==, spa_destroy(zs->zs_pool));
2099 spa_close(spa, FTAG);
2101 (void) rw_unlock(&zs->zs_name_lock);
2105 vdev_lookup_by_path(vdev_t *vd, const char *path)
2109 if (vd->vdev_path != NULL && strcmp(path, vd->vdev_path) == 0)
2112 for (int c = 0; c < vd->vdev_children; c++)
2113 if ((mvd = vdev_lookup_by_path(vd->vdev_child[c], path)) !=
2121 * Find the first available hole which can be used as a top-level.
2124 find_vdev_hole(spa_t *spa)
2126 vdev_t *rvd = spa->spa_root_vdev;
2129 ASSERT(spa_config_held(spa, SCL_VDEV, RW_READER) == SCL_VDEV);
2131 for (c = 0; c < rvd->vdev_children; c++) {
2132 vdev_t *cvd = rvd->vdev_child[c];
2134 if (cvd->vdev_ishole)
2141 * Verify that vdev_add() works as expected.
2145 ztest_vdev_add_remove(ztest_ds_t *zd, uint64_t id)
2147 ztest_shared_t *zs = ztest_shared;
2148 spa_t *spa = zs->zs_spa;
2154 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2155 leaves = MAX(zs->zs_mirrors + zs->zs_splits, 1) * zopt_raidz;
2157 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2159 ztest_shared->zs_vdev_next_leaf = find_vdev_hole(spa) * leaves;
2162 * If we have slogs then remove them 1/4 of the time.
2164 if (spa_has_slogs(spa) && ztest_random(4) == 0) {
2166 * Grab the guid from the head of the log class rotor.
2168 guid = spa_log_class(spa)->mc_rotor->mg_vd->vdev_guid;
2170 spa_config_exit(spa, SCL_VDEV, FTAG);
2173 * We have to grab the zs_name_lock as writer to
2174 * prevent a race between removing a slog (dmu_objset_find)
2175 * and destroying a dataset. Removing the slog will
2176 * grab a reference on the dataset which may cause
2177 * dmu_objset_destroy() to fail with EBUSY thus
2178 * leaving the dataset in an inconsistent state.
2180 VERIFY(rw_wrlock(&ztest_shared->zs_name_lock) == 0);
2181 error = spa_vdev_remove(spa, guid, B_FALSE);
2182 VERIFY(rw_unlock(&ztest_shared->zs_name_lock) == 0);
2184 if (error && error != EEXIST)
2185 fatal(0, "spa_vdev_remove() = %d", error);
2187 spa_config_exit(spa, SCL_VDEV, FTAG);
2190 * Make 1/4 of the devices be log devices.
2192 nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0,
2193 ztest_random(4) == 0, zopt_raidz, zs->zs_mirrors, 1);
2195 error = spa_vdev_add(spa, nvroot);
2196 nvlist_free(nvroot);
2198 if (error == ENOSPC)
2199 ztest_record_enospc("spa_vdev_add");
2200 else if (error != 0)
2201 fatal(0, "spa_vdev_add() = %d", error);
2204 VERIFY(mutex_unlock(&ztest_shared->zs_vdev_lock) == 0);
2208 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2212 ztest_vdev_aux_add_remove(ztest_ds_t *zd, uint64_t id)
2214 ztest_shared_t *zs = ztest_shared;
2215 spa_t *spa = zs->zs_spa;
2216 vdev_t *rvd = spa->spa_root_vdev;
2217 spa_aux_vdev_t *sav;
2222 if (ztest_random(2) == 0) {
2223 sav = &spa->spa_spares;
2224 aux = ZPOOL_CONFIG_SPARES;
2226 sav = &spa->spa_l2cache;
2227 aux = ZPOOL_CONFIG_L2CACHE;
2230 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2232 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2234 if (sav->sav_count != 0 && ztest_random(4) == 0) {
2236 * Pick a random device to remove.
2238 guid = sav->sav_vdevs[ztest_random(sav->sav_count)]->vdev_guid;
2241 * Find an unused device we can add.
2243 zs->zs_vdev_aux = 0;
2245 char path[MAXPATHLEN];
2247 (void) sprintf(path, ztest_aux_template, zopt_dir,
2248 zopt_pool, aux, zs->zs_vdev_aux);
2249 for (c = 0; c < sav->sav_count; c++)
2250 if (strcmp(sav->sav_vdevs[c]->vdev_path,
2253 if (c == sav->sav_count &&
2254 vdev_lookup_by_path(rvd, path) == NULL)
2260 spa_config_exit(spa, SCL_VDEV, FTAG);
2266 nvlist_t *nvroot = make_vdev_root(NULL, aux,
2267 (zopt_vdev_size * 5) / 4, 0, 0, 0, 0, 1);
2268 error = spa_vdev_add(spa, nvroot);
2270 fatal(0, "spa_vdev_add(%p) = %d", nvroot, error);
2271 nvlist_free(nvroot);
2274 * Remove an existing device. Sometimes, dirty its
2275 * vdev state first to make sure we handle removal
2276 * of devices that have pending state changes.
2278 if (ztest_random(2) == 0)
2279 (void) vdev_online(spa, guid, 0, NULL);
2281 error = spa_vdev_remove(spa, guid, B_FALSE);
2282 if (error != 0 && error != EBUSY)
2283 fatal(0, "spa_vdev_remove(%llu) = %d", guid, error);
2286 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2290 * split a pool if it has mirror tlvdevs
2294 ztest_split_pool(ztest_ds_t *zd, uint64_t id)
2296 ztest_shared_t *zs = ztest_shared;
2297 spa_t *spa = zs->zs_spa;
2298 vdev_t *rvd = spa->spa_root_vdev;
2299 nvlist_t *tree, **child, *config, *split, **schild;
2300 uint_t c, children, schildren = 0, lastlogid = 0;
2303 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2305 /* ensure we have a useable config; mirrors of raidz aren't supported */
2306 if (zs->zs_mirrors < 3 || zopt_raidz > 1) {
2307 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2311 /* clean up the old pool, if any */
2312 (void) spa_destroy("splitp");
2314 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2316 /* generate a config from the existing config */
2317 mutex_enter(&spa->spa_props_lock);
2318 VERIFY(nvlist_lookup_nvlist(spa->spa_config, ZPOOL_CONFIG_VDEV_TREE,
2320 mutex_exit(&spa->spa_props_lock);
2322 VERIFY(nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child,
2325 schild = malloc(rvd->vdev_children * sizeof (nvlist_t *));
2326 for (c = 0; c < children; c++) {
2327 vdev_t *tvd = rvd->vdev_child[c];
2331 if (tvd->vdev_islog || tvd->vdev_ops == &vdev_hole_ops) {
2332 VERIFY(nvlist_alloc(&schild[schildren], NV_UNIQUE_NAME,
2334 VERIFY(nvlist_add_string(schild[schildren],
2335 ZPOOL_CONFIG_TYPE, VDEV_TYPE_HOLE) == 0);
2336 VERIFY(nvlist_add_uint64(schild[schildren],
2337 ZPOOL_CONFIG_IS_HOLE, 1) == 0);
2339 lastlogid = schildren;
2344 VERIFY(nvlist_lookup_nvlist_array(child[c],
2345 ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0);
2346 VERIFY(nvlist_dup(mchild[0], &schild[schildren++], 0) == 0);
2349 /* OK, create a config that can be used to split */
2350 VERIFY(nvlist_alloc(&split, NV_UNIQUE_NAME, 0) == 0);
2351 VERIFY(nvlist_add_string(split, ZPOOL_CONFIG_TYPE,
2352 VDEV_TYPE_ROOT) == 0);
2353 VERIFY(nvlist_add_nvlist_array(split, ZPOOL_CONFIG_CHILDREN, schild,
2354 lastlogid != 0 ? lastlogid : schildren) == 0);
2356 VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, 0) == 0);
2357 VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, split) == 0);
2359 for (c = 0; c < schildren; c++)
2360 nvlist_free(schild[c]);
2364 spa_config_exit(spa, SCL_VDEV, FTAG);
2366 (void) rw_wrlock(&zs->zs_name_lock);
2367 error = spa_vdev_split_mirror(spa, "splitp", config, NULL, B_FALSE);
2368 (void) rw_unlock(&zs->zs_name_lock);
2370 nvlist_free(config);
2373 (void) printf("successful split - results:\n");
2374 mutex_enter(&spa_namespace_lock);
2375 show_pool_stats(spa);
2376 show_pool_stats(spa_lookup("splitp"));
2377 mutex_exit(&spa_namespace_lock);
2381 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2386 * Verify that we can attach and detach devices.
2390 ztest_vdev_attach_detach(ztest_ds_t *zd, uint64_t id)
2392 ztest_shared_t *zs = ztest_shared;
2393 spa_t *spa = zs->zs_spa;
2394 spa_aux_vdev_t *sav = &spa->spa_spares;
2395 vdev_t *rvd = spa->spa_root_vdev;
2396 vdev_t *oldvd, *newvd, *pvd;
2400 uint64_t ashift = ztest_get_ashift();
2401 uint64_t oldguid, pguid;
2402 size_t oldsize, newsize;
2403 char oldpath[MAXPATHLEN], newpath[MAXPATHLEN];
2405 int oldvd_has_siblings = B_FALSE;
2406 int newvd_is_spare = B_FALSE;
2408 int error, expected_error;
2410 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2411 leaves = MAX(zs->zs_mirrors, 1) * zopt_raidz;
2413 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2416 * Decide whether to do an attach or a replace.
2418 replacing = ztest_random(2);
2421 * Pick a random top-level vdev.
2423 top = ztest_random_vdev_top(spa, B_TRUE);
2426 * Pick a random leaf within it.
2428 leaf = ztest_random(leaves);
2433 oldvd = rvd->vdev_child[top];
2434 if (zs->zs_mirrors >= 1) {
2435 ASSERT(oldvd->vdev_ops == &vdev_mirror_ops);
2436 ASSERT(oldvd->vdev_children >= zs->zs_mirrors);
2437 oldvd = oldvd->vdev_child[leaf / zopt_raidz];
2439 if (zopt_raidz > 1) {
2440 ASSERT(oldvd->vdev_ops == &vdev_raidz_ops);
2441 ASSERT(oldvd->vdev_children == zopt_raidz);
2442 oldvd = oldvd->vdev_child[leaf % zopt_raidz];
2446 * If we're already doing an attach or replace, oldvd may be a
2447 * mirror vdev -- in which case, pick a random child.
2449 while (oldvd->vdev_children != 0) {
2450 oldvd_has_siblings = B_TRUE;
2451 ASSERT(oldvd->vdev_children >= 2);
2452 oldvd = oldvd->vdev_child[ztest_random(oldvd->vdev_children)];
2455 oldguid = oldvd->vdev_guid;
2456 oldsize = vdev_get_min_asize(oldvd);
2457 oldvd_is_log = oldvd->vdev_top->vdev_islog;
2458 (void) strcpy(oldpath, oldvd->vdev_path);
2459 pvd = oldvd->vdev_parent;
2460 pguid = pvd->vdev_guid;
2463 * If oldvd has siblings, then half of the time, detach it.
2465 if (oldvd_has_siblings && ztest_random(2) == 0) {
2466 spa_config_exit(spa, SCL_VDEV, FTAG);
2467 error = spa_vdev_detach(spa, oldguid, pguid, B_FALSE);
2468 if (error != 0 && error != ENODEV && error != EBUSY &&
2470 fatal(0, "detach (%s) returned %d", oldpath, error);
2471 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2476 * For the new vdev, choose with equal probability between the two
2477 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2479 if (sav->sav_count != 0 && ztest_random(3) == 0) {
2480 newvd = sav->sav_vdevs[ztest_random(sav->sav_count)];
2481 newvd_is_spare = B_TRUE;
2482 (void) strcpy(newpath, newvd->vdev_path);
2484 (void) snprintf(newpath, sizeof (newpath), ztest_dev_template,
2485 zopt_dir, zopt_pool, top * leaves + leaf);
2486 if (ztest_random(2) == 0)
2487 newpath[strlen(newpath) - 1] = 'b';
2488 newvd = vdev_lookup_by_path(rvd, newpath);
2492 newsize = vdev_get_min_asize(newvd);
2495 * Make newsize a little bigger or smaller than oldsize.
2496 * If it's smaller, the attach should fail.
2497 * If it's larger, and we're doing a replace,
2498 * we should get dynamic LUN growth when we're done.
2500 newsize = 10 * oldsize / (9 + ztest_random(3));
2504 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2505 * unless it's a replace; in that case any non-replacing parent is OK.
2507 * If newvd is already part of the pool, it should fail with EBUSY.
2509 * If newvd is too small, it should fail with EOVERFLOW.
2511 if (pvd->vdev_ops != &vdev_mirror_ops &&
2512 pvd->vdev_ops != &vdev_root_ops && (!replacing ||
2513 pvd->vdev_ops == &vdev_replacing_ops ||
2514 pvd->vdev_ops == &vdev_spare_ops))
2515 expected_error = ENOTSUP;
2516 else if (newvd_is_spare && (!replacing || oldvd_is_log))
2517 expected_error = ENOTSUP;
2518 else if (newvd == oldvd)
2519 expected_error = replacing ? 0 : EBUSY;
2520 else if (vdev_lookup_by_path(rvd, newpath) != NULL)
2521 expected_error = EBUSY;
2522 else if (newsize < oldsize)
2523 expected_error = EOVERFLOW;
2524 else if (ashift > oldvd->vdev_top->vdev_ashift)
2525 expected_error = EDOM;
2529 spa_config_exit(spa, SCL_VDEV, FTAG);
2532 * Build the nvlist describing newpath.
2534 root = make_vdev_root(newpath, NULL, newvd == NULL ? newsize : 0,
2535 ashift, 0, 0, 0, 1);
2537 error = spa_vdev_attach(spa, oldguid, root, replacing);
2542 * If our parent was the replacing vdev, but the replace completed,
2543 * then instead of failing with ENOTSUP we may either succeed,
2544 * fail with ENODEV, or fail with EOVERFLOW.
2546 if (expected_error == ENOTSUP &&
2547 (error == 0 || error == ENODEV || error == EOVERFLOW))
2548 expected_error = error;
2551 * If someone grew the LUN, the replacement may be too small.
2553 if (error == EOVERFLOW || error == EBUSY)
2554 expected_error = error;
2556 /* XXX workaround 6690467 */
2557 if (error != expected_error && expected_error != EBUSY) {
2558 fatal(0, "attach (%s %llu, %s %llu, %d) "
2559 "returned %d, expected %d",
2560 oldpath, (longlong_t)oldsize, newpath,
2561 (longlong_t)newsize, replacing, error, expected_error);
2564 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2568 * Callback function which expands the physical size of the vdev.
2571 grow_vdev(vdev_t *vd, void *arg)
2573 spa_t *spa = vd->vdev_spa;
2574 size_t *newsize = arg;
2578 ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
2579 ASSERT(vd->vdev_ops->vdev_op_leaf);
2581 if ((fd = open(vd->vdev_path, O_RDWR)) == -1)
2584 fsize = lseek(fd, 0, SEEK_END);
2585 (void) ftruncate(fd, *newsize);
2587 if (zopt_verbose >= 6) {
2588 (void) printf("%s grew from %lu to %lu bytes\n",
2589 vd->vdev_path, (ulong_t)fsize, (ulong_t)*newsize);
2596 * Callback function which expands a given vdev by calling vdev_online().
2600 online_vdev(vdev_t *vd, void *arg)
2602 spa_t *spa = vd->vdev_spa;
2603 vdev_t *tvd = vd->vdev_top;
2604 uint64_t guid = vd->vdev_guid;
2605 uint64_t generation = spa->spa_config_generation + 1;
2606 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
2609 ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
2610 ASSERT(vd->vdev_ops->vdev_op_leaf);
2612 /* Calling vdev_online will initialize the new metaslabs */
2613 spa_config_exit(spa, SCL_STATE, spa);
2614 error = vdev_online(spa, guid, ZFS_ONLINE_EXPAND, &newstate);
2615 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
2618 * If vdev_online returned an error or the underlying vdev_open
2619 * failed then we abort the expand. The only way to know that
2620 * vdev_open fails is by checking the returned newstate.
2622 if (error || newstate != VDEV_STATE_HEALTHY) {
2623 if (zopt_verbose >= 5) {
2624 (void) printf("Unable to expand vdev, state %llu, "
2625 "error %d\n", (u_longlong_t)newstate, error);
2629 ASSERT3U(newstate, ==, VDEV_STATE_HEALTHY);
2632 * Since we dropped the lock we need to ensure that we're
2633 * still talking to the original vdev. It's possible this
2634 * vdev may have been detached/replaced while we were
2635 * trying to online it.
2637 if (generation != spa->spa_config_generation) {
2638 if (zopt_verbose >= 5) {
2639 (void) printf("vdev configuration has changed, "
2640 "guid %llu, state %llu, expected gen %llu, "
2643 (u_longlong_t)tvd->vdev_state,
2644 (u_longlong_t)generation,
2645 (u_longlong_t)spa->spa_config_generation);
2653 * Traverse the vdev tree calling the supplied function.
2654 * We continue to walk the tree until we either have walked all
2655 * children or we receive a non-NULL return from the callback.
2656 * If a NULL callback is passed, then we just return back the first
2657 * leaf vdev we encounter.
2660 vdev_walk_tree(vdev_t *vd, vdev_t *(*func)(vdev_t *, void *), void *arg)
2662 if (vd->vdev_ops->vdev_op_leaf) {
2666 return (func(vd, arg));
2669 for (uint_t c = 0; c < vd->vdev_children; c++) {
2670 vdev_t *cvd = vd->vdev_child[c];
2671 if ((cvd = vdev_walk_tree(cvd, func, arg)) != NULL)
2678 * Verify that dynamic LUN growth works as expected.
2682 ztest_vdev_LUN_growth(ztest_ds_t *zd, uint64_t id)
2684 ztest_shared_t *zs = ztest_shared;
2685 spa_t *spa = zs->zs_spa;
2687 metaslab_class_t *mc;
2688 metaslab_group_t *mg;
2689 size_t psize, newsize;
2691 uint64_t old_class_space, new_class_space, old_ms_count, new_ms_count;
2693 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2694 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
2696 top = ztest_random_vdev_top(spa, B_TRUE);
2698 tvd = spa->spa_root_vdev->vdev_child[top];
2701 old_ms_count = tvd->vdev_ms_count;
2702 old_class_space = metaslab_class_get_space(mc);
2705 * Determine the size of the first leaf vdev associated with
2706 * our top-level device.
2708 vd = vdev_walk_tree(tvd, NULL, NULL);
2709 ASSERT3P(vd, !=, NULL);
2710 ASSERT(vd->vdev_ops->vdev_op_leaf);
2712 psize = vd->vdev_psize;
2715 * We only try to expand the vdev if it's healthy, less than 4x its
2716 * original size, and it has a valid psize.
2718 if (tvd->vdev_state != VDEV_STATE_HEALTHY ||
2719 psize == 0 || psize >= 4 * zopt_vdev_size) {
2720 spa_config_exit(spa, SCL_STATE, spa);
2721 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2725 newsize = psize + psize / 8;
2726 ASSERT3U(newsize, >, psize);
2728 if (zopt_verbose >= 6) {
2729 (void) printf("Expanding LUN %s from %lu to %lu\n",
2730 vd->vdev_path, (ulong_t)psize, (ulong_t)newsize);
2734 * Growing the vdev is a two step process:
2735 * 1). expand the physical size (i.e. relabel)
2736 * 2). online the vdev to create the new metaslabs
2738 if (vdev_walk_tree(tvd, grow_vdev, &newsize) != NULL ||
2739 vdev_walk_tree(tvd, online_vdev, NULL) != NULL ||
2740 tvd->vdev_state != VDEV_STATE_HEALTHY) {
2741 if (zopt_verbose >= 5) {
2742 (void) printf("Could not expand LUN because "
2743 "the vdev configuration changed.\n");
2745 spa_config_exit(spa, SCL_STATE, spa);
2746 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2750 spa_config_exit(spa, SCL_STATE, spa);
2753 * Expanding the LUN will update the config asynchronously,
2754 * thus we must wait for the async thread to complete any
2755 * pending tasks before proceeding.
2759 mutex_enter(&spa->spa_async_lock);
2760 done = (spa->spa_async_thread == NULL && !spa->spa_async_tasks);
2761 mutex_exit(&spa->spa_async_lock);
2764 txg_wait_synced(spa_get_dsl(spa), 0);
2765 (void) poll(NULL, 0, 100);
2768 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
2770 tvd = spa->spa_root_vdev->vdev_child[top];
2771 new_ms_count = tvd->vdev_ms_count;
2772 new_class_space = metaslab_class_get_space(mc);
2774 if (tvd->vdev_mg != mg || mg->mg_class != mc) {
2775 if (zopt_verbose >= 5) {
2776 (void) printf("Could not verify LUN expansion due to "
2777 "intervening vdev offline or remove.\n");
2779 spa_config_exit(spa, SCL_STATE, spa);
2780 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2785 * Make sure we were able to grow the vdev.
2787 if (new_ms_count <= old_ms_count)
2788 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
2789 old_ms_count, new_ms_count);
2792 * Make sure we were able to grow the pool.
2794 if (new_class_space <= old_class_space)
2795 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
2796 old_class_space, new_class_space);
2798 if (zopt_verbose >= 5) {
2799 char oldnumbuf[6], newnumbuf[6];
2801 nicenum(old_class_space, oldnumbuf);
2802 nicenum(new_class_space, newnumbuf);
2803 (void) printf("%s grew from %s to %s\n",
2804 spa->spa_name, oldnumbuf, newnumbuf);
2807 spa_config_exit(spa, SCL_STATE, spa);
2808 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2812 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
2816 ztest_objset_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
2819 * Create the objects common to all ztest datasets.
2821 VERIFY(zap_create_claim(os, ZTEST_DIROBJ,
2822 DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0);
2826 ztest_dataset_create(char *dsname)
2828 uint64_t zilset = ztest_random(100);
2829 int err = dmu_objset_create(dsname, DMU_OST_OTHER, 0,
2830 ztest_objset_create_cb, NULL);
2832 if (err || zilset < 80)
2835 (void) printf("Setting dataset %s to sync always\n", dsname);
2836 return (ztest_dsl_prop_set_uint64(dsname, ZFS_PROP_SYNC,
2837 ZFS_SYNC_ALWAYS, B_FALSE));
2842 ztest_objset_destroy_cb(const char *name, void *arg)
2845 dmu_object_info_t doi;
2849 * Verify that the dataset contains a directory object.
2851 VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os));
2852 error = dmu_object_info(os, ZTEST_DIROBJ, &doi);
2853 if (error != ENOENT) {
2854 /* We could have crashed in the middle of destroying it */
2855 ASSERT3U(error, ==, 0);
2856 ASSERT3U(doi.doi_type, ==, DMU_OT_ZAP_OTHER);
2857 ASSERT3S(doi.doi_physical_blocks_512, >=, 0);
2859 dmu_objset_rele(os, FTAG);
2862 * Destroy the dataset.
2864 VERIFY3U(0, ==, dmu_objset_destroy(name, B_FALSE));
2869 ztest_snapshot_create(char *osname, uint64_t id)
2871 char snapname[MAXNAMELEN];
2874 (void) snprintf(snapname, MAXNAMELEN, "%s@%llu", osname,
2877 error = dmu_objset_snapshot(osname, strchr(snapname, '@') + 1,
2879 if (error == ENOSPC) {
2880 ztest_record_enospc(FTAG);
2883 if (error != 0 && error != EEXIST)
2884 fatal(0, "ztest_snapshot_create(%s) = %d", snapname, error);
2889 ztest_snapshot_destroy(char *osname, uint64_t id)
2891 char snapname[MAXNAMELEN];
2894 (void) snprintf(snapname, MAXNAMELEN, "%s@%llu", osname,
2897 error = dmu_objset_destroy(snapname, B_FALSE);
2898 if (error != 0 && error != ENOENT)
2899 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname, error);
2905 ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
2907 ztest_shared_t *zs = ztest_shared;
2912 char name[MAXNAMELEN];
2915 (void) rw_rdlock(&zs->zs_name_lock);
2917 (void) snprintf(name, MAXNAMELEN, "%s/temp_%llu",
2918 zs->zs_pool, (u_longlong_t)id);
2921 * If this dataset exists from a previous run, process its replay log
2922 * half of the time. If we don't replay it, then dmu_objset_destroy()
2923 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
2925 if (ztest_random(2) == 0 &&
2926 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os) == 0) {
2927 ztest_zd_init(&zdtmp, os);
2928 zil_replay(os, &zdtmp, ztest_replay_vector);
2929 ztest_zd_fini(&zdtmp);
2930 dmu_objset_disown(os, FTAG);
2934 * There may be an old instance of the dataset we're about to
2935 * create lying around from a previous run. If so, destroy it
2936 * and all of its snapshots.
2938 (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
2939 DS_FIND_CHILDREN | DS_FIND_SNAPSHOTS);
2942 * Verify that the destroyed dataset is no longer in the namespace.
2944 VERIFY3U(ENOENT, ==, dmu_objset_hold(name, FTAG, &os));
2947 * Verify that we can create a new dataset.
2949 error = ztest_dataset_create(name);
2951 if (error == ENOSPC) {
2952 ztest_record_enospc(FTAG);
2953 (void) rw_unlock(&zs->zs_name_lock);
2956 fatal(0, "dmu_objset_create(%s) = %d", name, error);
2960 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os));
2962 ztest_zd_init(&zdtmp, os);
2965 * Open the intent log for it.
2967 zilog = zil_open(os, ztest_get_data);
2970 * Put some objects in there, do a little I/O to them,
2971 * and randomly take a couple of snapshots along the way.
2973 iters = ztest_random(5);
2974 for (int i = 0; i < iters; i++) {
2975 ztest_dmu_object_alloc_free(&zdtmp, id);
2976 if (ztest_random(iters) == 0)
2977 (void) ztest_snapshot_create(name, i);
2981 * Verify that we cannot create an existing dataset.
2983 VERIFY3U(EEXIST, ==,
2984 dmu_objset_create(name, DMU_OST_OTHER, 0, NULL, NULL));
2987 * Verify that we can hold an objset that is also owned.
2989 VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os2));
2990 dmu_objset_rele(os2, FTAG);
2993 * Verify that we cannot own an objset that is already owned.
2996 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os2));
2999 dmu_objset_disown(os, FTAG);
3000 ztest_zd_fini(&zdtmp);
3002 (void) rw_unlock(&zs->zs_name_lock);
3006 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3009 ztest_dmu_snapshot_create_destroy(ztest_ds_t *zd, uint64_t id)
3011 ztest_shared_t *zs = ztest_shared;
3013 (void) rw_rdlock(&zs->zs_name_lock);
3014 (void) ztest_snapshot_destroy(zd->zd_name, id);
3015 (void) ztest_snapshot_create(zd->zd_name, id);
3016 (void) rw_unlock(&zs->zs_name_lock);
3020 * Cleanup non-standard snapshots and clones.
3023 ztest_dsl_dataset_cleanup(char *osname, uint64_t id)
3025 char snap1name[MAXNAMELEN];
3026 char clone1name[MAXNAMELEN];
3027 char snap2name[MAXNAMELEN];
3028 char clone2name[MAXNAMELEN];
3029 char snap3name[MAXNAMELEN];
3032 (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id);
3033 (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id);
3034 (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id);
3035 (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id);
3036 (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id);
3038 error = dmu_objset_destroy(clone2name, B_FALSE);
3039 if (error && error != ENOENT)
3040 fatal(0, "dmu_objset_destroy(%s) = %d", clone2name, error);
3041 error = dmu_objset_destroy(snap3name, B_FALSE);
3042 if (error && error != ENOENT)
3043 fatal(0, "dmu_objset_destroy(%s) = %d", snap3name, error);
3044 error = dmu_objset_destroy(snap2name, B_FALSE);
3045 if (error && error != ENOENT)
3046 fatal(0, "dmu_objset_destroy(%s) = %d", snap2name, error);
3047 error = dmu_objset_destroy(clone1name, B_FALSE);
3048 if (error && error != ENOENT)
3049 fatal(0, "dmu_objset_destroy(%s) = %d", clone1name, error);
3050 error = dmu_objset_destroy(snap1name, B_FALSE);
3051 if (error && error != ENOENT)
3052 fatal(0, "dmu_objset_destroy(%s) = %d", snap1name, error);
3056 * Verify dsl_dataset_promote handles EBUSY
3059 ztest_dsl_dataset_promote_busy(ztest_ds_t *zd, uint64_t id)
3061 ztest_shared_t *zs = ztest_shared;
3064 char snap1name[MAXNAMELEN];
3065 char clone1name[MAXNAMELEN];
3066 char snap2name[MAXNAMELEN];
3067 char clone2name[MAXNAMELEN];
3068 char snap3name[MAXNAMELEN];
3069 char *osname = zd->zd_name;
3072 (void) rw_rdlock(&zs->zs_name_lock);
3074 ztest_dsl_dataset_cleanup(osname, id);
3076 (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id);
3077 (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id);
3078 (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id);
3079 (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id);
3080 (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id);
3082 error = dmu_objset_snapshot(osname, strchr(snap1name, '@')+1,
3084 if (error && error != EEXIST) {
3085 if (error == ENOSPC) {
3086 ztest_record_enospc(FTAG);
3089 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name, error);
3092 error = dmu_objset_hold(snap1name, FTAG, &clone);
3094 fatal(0, "dmu_open_snapshot(%s) = %d", snap1name, error);
3096 error = dmu_objset_clone(clone1name, dmu_objset_ds(clone), 0);
3097 dmu_objset_rele(clone, FTAG);
3099 if (error == ENOSPC) {
3100 ztest_record_enospc(FTAG);
3103 fatal(0, "dmu_objset_create(%s) = %d", clone1name, error);
3106 error = dmu_objset_snapshot(clone1name, strchr(snap2name, '@')+1,
3108 if (error && error != EEXIST) {
3109 if (error == ENOSPC) {
3110 ztest_record_enospc(FTAG);
3113 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name, error);
3116 error = dmu_objset_snapshot(clone1name, strchr(snap3name, '@')+1,
3118 if (error && error != EEXIST) {
3119 if (error == ENOSPC) {
3120 ztest_record_enospc(FTAG);
3123 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error);
3126 error = dmu_objset_hold(snap3name, FTAG, &clone);
3128 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error);
3130 error = dmu_objset_clone(clone2name, dmu_objset_ds(clone), 0);
3131 dmu_objset_rele(clone, FTAG);
3133 if (error == ENOSPC) {
3134 ztest_record_enospc(FTAG);
3137 fatal(0, "dmu_objset_create(%s) = %d", clone2name, error);
3140 error = dsl_dataset_own(snap2name, B_FALSE, FTAG, &ds);
3142 fatal(0, "dsl_dataset_own(%s) = %d", snap2name, error);
3143 error = dsl_dataset_promote(clone2name, NULL);
3145 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name,
3147 dsl_dataset_disown(ds, FTAG);
3150 ztest_dsl_dataset_cleanup(osname, id);
3152 (void) rw_unlock(&zs->zs_name_lock);
3156 * Verify that dmu_object_{alloc,free} work as expected.
3159 ztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t id)
3162 int batchsize = sizeof (od) / sizeof (od[0]);
3164 for (int b = 0; b < batchsize; b++)
3165 ztest_od_init(&od[b], id, FTAG, b, DMU_OT_UINT64_OTHER, 0, 0);
3168 * Destroy the previous batch of objects, create a new batch,
3169 * and do some I/O on the new objects.
3171 if (ztest_object_init(zd, od, sizeof (od), B_TRUE) != 0)
3174 while (ztest_random(4 * batchsize) != 0)
3175 ztest_io(zd, od[ztest_random(batchsize)].od_object,
3176 ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
3180 * Verify that dmu_{read,write} work as expected.
3183 ztest_dmu_read_write(ztest_ds_t *zd, uint64_t id)
3185 objset_t *os = zd->zd_os;
3188 int i, freeit, error;
3190 bufwad_t *packbuf, *bigbuf, *pack, *bigH, *bigT;
3191 uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
3192 uint64_t chunksize = (1000 + ztest_random(1000)) * sizeof (uint64_t);
3193 uint64_t regions = 997;
3194 uint64_t stride = 123456789ULL;
3195 uint64_t width = 40;
3196 int free_percent = 5;
3199 * This test uses two objects, packobj and bigobj, that are always
3200 * updated together (i.e. in the same tx) so that their contents are
3201 * in sync and can be compared. Their contents relate to each other
3202 * in a simple way: packobj is a dense array of 'bufwad' structures,
3203 * while bigobj is a sparse array of the same bufwads. Specifically,
3204 * for any index n, there are three bufwads that should be identical:
3206 * packobj, at offset n * sizeof (bufwad_t)
3207 * bigobj, at the head of the nth chunk
3208 * bigobj, at the tail of the nth chunk
3210 * The chunk size is arbitrary. It doesn't have to be a power of two,
3211 * and it doesn't have any relation to the object blocksize.
3212 * The only requirement is that it can hold at least two bufwads.
3214 * Normally, we write the bufwad to each of these locations.
3215 * However, free_percent of the time we instead write zeroes to
3216 * packobj and perform a dmu_free_range() on bigobj. By comparing
3217 * bigobj to packobj, we can verify that the DMU is correctly
3218 * tracking which parts of an object are allocated and free,
3219 * and that the contents of the allocated blocks are correct.
3223 * Read the directory info. If it's the first time, set things up.
3225 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, chunksize);
3226 ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize);
3228 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3231 bigobj = od[0].od_object;
3232 packobj = od[1].od_object;
3233 chunksize = od[0].od_gen;
3234 ASSERT(chunksize == od[1].od_gen);
3237 * Prefetch a random chunk of the big object.
3238 * Our aim here is to get some async reads in flight
3239 * for blocks that we may free below; the DMU should
3240 * handle this race correctly.
3242 n = ztest_random(regions) * stride + ztest_random(width);
3243 s = 1 + ztest_random(2 * width - 1);
3244 dmu_prefetch(os, bigobj, n * chunksize, s * chunksize);
3247 * Pick a random index and compute the offsets into packobj and bigobj.
3249 n = ztest_random(regions) * stride + ztest_random(width);
3250 s = 1 + ztest_random(width - 1);
3252 packoff = n * sizeof (bufwad_t);
3253 packsize = s * sizeof (bufwad_t);
3255 bigoff = n * chunksize;
3256 bigsize = s * chunksize;
3258 packbuf = umem_alloc(packsize, UMEM_NOFAIL);
3259 bigbuf = umem_alloc(bigsize, UMEM_NOFAIL);
3262 * free_percent of the time, free a range of bigobj rather than
3265 freeit = (ztest_random(100) < free_percent);
3268 * Read the current contents of our objects.
3270 error = dmu_read(os, packobj, packoff, packsize, packbuf,
3272 ASSERT3U(error, ==, 0);
3273 error = dmu_read(os, bigobj, bigoff, bigsize, bigbuf,
3275 ASSERT3U(error, ==, 0);
3278 * Get a tx for the mods to both packobj and bigobj.
3280 tx = dmu_tx_create(os);
3282 dmu_tx_hold_write(tx, packobj, packoff, packsize);
3285 dmu_tx_hold_free(tx, bigobj, bigoff, bigsize);
3287 dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
3289 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3291 umem_free(packbuf, packsize);
3292 umem_free(bigbuf, bigsize);
3296 dmu_object_set_checksum(os, bigobj,
3297 (enum zio_checksum)ztest_random_dsl_prop(ZFS_PROP_CHECKSUM), tx);
3299 dmu_object_set_compress(os, bigobj,
3300 (enum zio_compress)ztest_random_dsl_prop(ZFS_PROP_COMPRESSION), tx);
3303 * For each index from n to n + s, verify that the existing bufwad
3304 * in packobj matches the bufwads at the head and tail of the
3305 * corresponding chunk in bigobj. Then update all three bufwads
3306 * with the new values we want to write out.
3308 for (i = 0; i < s; i++) {
3310 pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
3312 bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
3314 bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
3316 ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
3317 ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
3319 if (pack->bw_txg > txg)
3320 fatal(0, "future leak: got %llx, open txg is %llx",
3323 if (pack->bw_data != 0 && pack->bw_index != n + i)
3324 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3325 pack->bw_index, n, i);
3327 if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0)
3328 fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH);
3330 if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0)
3331 fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT);
3334 bzero(pack, sizeof (bufwad_t));
3336 pack->bw_index = n + i;
3338 pack->bw_data = 1 + ztest_random(-2ULL);
3345 * We've verified all the old bufwads, and made new ones.
3346 * Now write them out.
3348 dmu_write(os, packobj, packoff, packsize, packbuf, tx);
3351 if (zopt_verbose >= 7) {
3352 (void) printf("freeing offset %llx size %llx"
3354 (u_longlong_t)bigoff,
3355 (u_longlong_t)bigsize,
3358 VERIFY(0 == dmu_free_range(os, bigobj, bigoff, bigsize, tx));
3360 if (zopt_verbose >= 7) {
3361 (void) printf("writing offset %llx size %llx"
3363 (u_longlong_t)bigoff,
3364 (u_longlong_t)bigsize,
3367 dmu_write(os, bigobj, bigoff, bigsize, bigbuf, tx);
3373 * Sanity check the stuff we just wrote.
3376 void *packcheck = umem_alloc(packsize, UMEM_NOFAIL);
3377 void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL);
3379 VERIFY(0 == dmu_read(os, packobj, packoff,
3380 packsize, packcheck, DMU_READ_PREFETCH));
3381 VERIFY(0 == dmu_read(os, bigobj, bigoff,
3382 bigsize, bigcheck, DMU_READ_PREFETCH));
3384 ASSERT(bcmp(packbuf, packcheck, packsize) == 0);
3385 ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0);
3387 umem_free(packcheck, packsize);
3388 umem_free(bigcheck, bigsize);
3391 umem_free(packbuf, packsize);
3392 umem_free(bigbuf, bigsize);
3396 compare_and_update_pbbufs(uint64_t s, bufwad_t *packbuf, bufwad_t *bigbuf,
3397 uint64_t bigsize, uint64_t n, uint64_t chunksize, uint64_t txg)
3405 * For each index from n to n + s, verify that the existing bufwad
3406 * in packobj matches the bufwads at the head and tail of the
3407 * corresponding chunk in bigobj. Then update all three bufwads
3408 * with the new values we want to write out.
3410 for (i = 0; i < s; i++) {
3412 pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
3414 bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
3416 bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
3418 ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
3419 ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
3421 if (pack->bw_txg > txg)
3422 fatal(0, "future leak: got %llx, open txg is %llx",
3425 if (pack->bw_data != 0 && pack->bw_index != n + i)
3426 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3427 pack->bw_index, n, i);
3429 if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0)
3430 fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH);
3432 if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0)
3433 fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT);
3435 pack->bw_index = n + i;
3437 pack->bw_data = 1 + ztest_random(-2ULL);
3445 ztest_dmu_read_write_zcopy(ztest_ds_t *zd, uint64_t id)
3447 objset_t *os = zd->zd_os;
3453 bufwad_t *packbuf, *bigbuf;
3454 uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
3455 uint64_t blocksize = ztest_random_blocksize();
3456 uint64_t chunksize = blocksize;
3457 uint64_t regions = 997;
3458 uint64_t stride = 123456789ULL;
3460 dmu_buf_t *bonus_db;
3461 arc_buf_t **bigbuf_arcbufs;
3462 dmu_object_info_t doi;
3465 * This test uses two objects, packobj and bigobj, that are always
3466 * updated together (i.e. in the same tx) so that their contents are
3467 * in sync and can be compared. Their contents relate to each other
3468 * in a simple way: packobj is a dense array of 'bufwad' structures,
3469 * while bigobj is a sparse array of the same bufwads. Specifically,
3470 * for any index n, there are three bufwads that should be identical:
3472 * packobj, at offset n * sizeof (bufwad_t)
3473 * bigobj, at the head of the nth chunk
3474 * bigobj, at the tail of the nth chunk
3476 * The chunk size is set equal to bigobj block size so that
3477 * dmu_assign_arcbuf() can be tested for object updates.
3481 * Read the directory info. If it's the first time, set things up.
3483 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
3484 ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize);
3486 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3489 bigobj = od[0].od_object;
3490 packobj = od[1].od_object;
3491 blocksize = od[0].od_blocksize;
3492 chunksize = blocksize;
3493 ASSERT(chunksize == od[1].od_gen);
3495 VERIFY(dmu_object_info(os, bigobj, &doi) == 0);
3496 VERIFY(ISP2(doi.doi_data_block_size));
3497 VERIFY(chunksize == doi.doi_data_block_size);
3498 VERIFY(chunksize >= 2 * sizeof (bufwad_t));
3501 * Pick a random index and compute the offsets into packobj and bigobj.
3503 n = ztest_random(regions) * stride + ztest_random(width);
3504 s = 1 + ztest_random(width - 1);
3506 packoff = n * sizeof (bufwad_t);
3507 packsize = s * sizeof (bufwad_t);
3509 bigoff = n * chunksize;
3510 bigsize = s * chunksize;
3512 packbuf = umem_zalloc(packsize, UMEM_NOFAIL);
3513 bigbuf = umem_zalloc(bigsize, UMEM_NOFAIL);
3515 VERIFY3U(0, ==, dmu_bonus_hold(os, bigobj, FTAG, &bonus_db));
3517 bigbuf_arcbufs = umem_zalloc(2 * s * sizeof (arc_buf_t *), UMEM_NOFAIL);
3520 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
3521 * Iteration 1 test zcopy to already referenced dbufs.
3522 * Iteration 2 test zcopy to dirty dbuf in the same txg.
3523 * Iteration 3 test zcopy to dbuf dirty in previous txg.
3524 * Iteration 4 test zcopy when dbuf is no longer dirty.
3525 * Iteration 5 test zcopy when it can't be done.
3526 * Iteration 6 one more zcopy write.
3528 for (i = 0; i < 7; i++) {
3533 * In iteration 5 (i == 5) use arcbufs
3534 * that don't match bigobj blksz to test
3535 * dmu_assign_arcbuf() when it can't directly
3536 * assign an arcbuf to a dbuf.
3538 for (j = 0; j < s; j++) {
3541 dmu_request_arcbuf(bonus_db, chunksize);
3543 bigbuf_arcbufs[2 * j] =
3544 dmu_request_arcbuf(bonus_db, chunksize / 2);
3545 bigbuf_arcbufs[2 * j + 1] =
3546 dmu_request_arcbuf(bonus_db, chunksize / 2);
3551 * Get a tx for the mods to both packobj and bigobj.
3553 tx = dmu_tx_create(os);
3555 dmu_tx_hold_write(tx, packobj, packoff, packsize);
3556 dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
3558 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3560 umem_free(packbuf, packsize);
3561 umem_free(bigbuf, bigsize);
3562 for (j = 0; j < s; j++) {
3564 dmu_return_arcbuf(bigbuf_arcbufs[j]);
3567 bigbuf_arcbufs[2 * j]);
3569 bigbuf_arcbufs[2 * j + 1]);
3572 umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
3573 dmu_buf_rele(bonus_db, FTAG);
3578 * 50% of the time don't read objects in the 1st iteration to
3579 * test dmu_assign_arcbuf() for the case when there're no
3580 * existing dbufs for the specified offsets.
3582 if (i != 0 || ztest_random(2) != 0) {
3583 error = dmu_read(os, packobj, packoff,
3584 packsize, packbuf, DMU_READ_PREFETCH);
3585 ASSERT3U(error, ==, 0);
3586 error = dmu_read(os, bigobj, bigoff, bigsize,
3587 bigbuf, DMU_READ_PREFETCH);
3588 ASSERT3U(error, ==, 0);
3590 compare_and_update_pbbufs(s, packbuf, bigbuf, bigsize,
3594 * We've verified all the old bufwads, and made new ones.
3595 * Now write them out.
3597 dmu_write(os, packobj, packoff, packsize, packbuf, tx);
3598 if (zopt_verbose >= 7) {
3599 (void) printf("writing offset %llx size %llx"
3601 (u_longlong_t)bigoff,
3602 (u_longlong_t)bigsize,
3605 for (off = bigoff, j = 0; j < s; j++, off += chunksize) {
3608 bcopy((caddr_t)bigbuf + (off - bigoff),
3609 bigbuf_arcbufs[j]->b_data, chunksize);
3611 bcopy((caddr_t)bigbuf + (off - bigoff),
3612 bigbuf_arcbufs[2 * j]->b_data,
3614 bcopy((caddr_t)bigbuf + (off - bigoff) +
3616 bigbuf_arcbufs[2 * j + 1]->b_data,
3621 VERIFY(dmu_buf_hold(os, bigobj, off,
3622 FTAG, &dbt, DMU_READ_NO_PREFETCH) == 0);
3625 dmu_assign_arcbuf(bonus_db, off,
3626 bigbuf_arcbufs[j], tx);
3628 dmu_assign_arcbuf(bonus_db, off,
3629 bigbuf_arcbufs[2 * j], tx);
3630 dmu_assign_arcbuf(bonus_db,
3631 off + chunksize / 2,
3632 bigbuf_arcbufs[2 * j + 1], tx);
3635 dmu_buf_rele(dbt, FTAG);
3641 * Sanity check the stuff we just wrote.
3644 void *packcheck = umem_alloc(packsize, UMEM_NOFAIL);
3645 void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL);
3647 VERIFY(0 == dmu_read(os, packobj, packoff,
3648 packsize, packcheck, DMU_READ_PREFETCH));
3649 VERIFY(0 == dmu_read(os, bigobj, bigoff,
3650 bigsize, bigcheck, DMU_READ_PREFETCH));
3652 ASSERT(bcmp(packbuf, packcheck, packsize) == 0);
3653 ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0);
3655 umem_free(packcheck, packsize);
3656 umem_free(bigcheck, bigsize);
3659 txg_wait_open(dmu_objset_pool(os), 0);
3660 } else if (i == 3) {
3661 txg_wait_synced(dmu_objset_pool(os), 0);
3665 dmu_buf_rele(bonus_db, FTAG);
3666 umem_free(packbuf, packsize);
3667 umem_free(bigbuf, bigsize);
3668 umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
3673 ztest_dmu_write_parallel(ztest_ds_t *zd, uint64_t id)
3676 uint64_t offset = (1ULL << (ztest_random(20) + 43)) +
3677 (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
3680 * Have multiple threads write to large offsets in an object
3681 * to verify that parallel writes to an object -- even to the
3682 * same blocks within the object -- doesn't cause any trouble.
3684 ztest_od_init(&od[0], ID_PARALLEL, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
3686 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3689 while (ztest_random(10) != 0)
3690 ztest_io(zd, od[0].od_object, offset);
3694 ztest_dmu_prealloc(ztest_ds_t *zd, uint64_t id)
3697 uint64_t offset = (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT)) +
3698 (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
3699 uint64_t count = ztest_random(20) + 1;
3700 uint64_t blocksize = ztest_random_blocksize();
3703 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
3705 if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
3708 if (ztest_truncate(zd, od[0].od_object, offset, count * blocksize) != 0)
3711 ztest_prealloc(zd, od[0].od_object, offset, count * blocksize);
3713 data = umem_zalloc(blocksize, UMEM_NOFAIL);
3715 while (ztest_random(count) != 0) {
3716 uint64_t randoff = offset + (ztest_random(count) * blocksize);
3717 if (ztest_write(zd, od[0].od_object, randoff, blocksize,
3720 while (ztest_random(4) != 0)
3721 ztest_io(zd, od[0].od_object, randoff);
3724 umem_free(data, blocksize);
3728 * Verify that zap_{create,destroy,add,remove,update} work as expected.
3730 #define ZTEST_ZAP_MIN_INTS 1
3731 #define ZTEST_ZAP_MAX_INTS 4
3732 #define ZTEST_ZAP_MAX_PROPS 1000
3735 ztest_zap(ztest_ds_t *zd, uint64_t id)
3737 objset_t *os = zd->zd_os;
3740 uint64_t txg, last_txg;
3741 uint64_t value[ZTEST_ZAP_MAX_INTS];
3742 uint64_t zl_ints, zl_intsize, prop;
3745 char propname[100], txgname[100];
3747 char *hc[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
3749 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
3751 if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
3754 object = od[0].od_object;
3757 * Generate a known hash collision, and verify that
3758 * we can lookup and remove both entries.
3760 tx = dmu_tx_create(os);
3761 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
3762 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3765 for (i = 0; i < 2; i++) {
3767 VERIFY3U(0, ==, zap_add(os, object, hc[i], sizeof (uint64_t),
3770 for (i = 0; i < 2; i++) {
3771 VERIFY3U(EEXIST, ==, zap_add(os, object, hc[i],
3772 sizeof (uint64_t), 1, &value[i], tx));
3774 zap_length(os, object, hc[i], &zl_intsize, &zl_ints));
3775 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
3776 ASSERT3U(zl_ints, ==, 1);
3778 for (i = 0; i < 2; i++) {
3779 VERIFY3U(0, ==, zap_remove(os, object, hc[i], tx));
3784 * Generate a buch of random entries.
3786 ints = MAX(ZTEST_ZAP_MIN_INTS, object % ZTEST_ZAP_MAX_INTS);
3788 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
3789 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
3790 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
3791 bzero(value, sizeof (value));
3795 * If these zap entries already exist, validate their contents.
3797 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
3799 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
3800 ASSERT3U(zl_ints, ==, 1);
3802 VERIFY(zap_lookup(os, object, txgname, zl_intsize,
3803 zl_ints, &last_txg) == 0);
3805 VERIFY(zap_length(os, object, propname, &zl_intsize,
3808 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
3809 ASSERT3U(zl_ints, ==, ints);
3811 VERIFY(zap_lookup(os, object, propname, zl_intsize,
3812 zl_ints, value) == 0);
3814 for (i = 0; i < ints; i++) {
3815 ASSERT3U(value[i], ==, last_txg + object + i);
3818 ASSERT3U(error, ==, ENOENT);
3822 * Atomically update two entries in our zap object.
3823 * The first is named txg_%llu, and contains the txg
3824 * in which the property was last updated. The second
3825 * is named prop_%llu, and the nth element of its value
3826 * should be txg + object + n.
3828 tx = dmu_tx_create(os);
3829 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
3830 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3835 fatal(0, "zap future leak: old %llu new %llu", last_txg, txg);
3837 for (i = 0; i < ints; i++)
3838 value[i] = txg + object + i;
3840 VERIFY3U(0, ==, zap_update(os, object, txgname, sizeof (uint64_t),
3842 VERIFY3U(0, ==, zap_update(os, object, propname, sizeof (uint64_t),
3848 * Remove a random pair of entries.
3850 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
3851 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
3852 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
3854 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
3856 if (error == ENOENT)
3859 ASSERT3U(error, ==, 0);
3861 tx = dmu_tx_create(os);
3862 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
3863 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3866 VERIFY3U(0, ==, zap_remove(os, object, txgname, tx));
3867 VERIFY3U(0, ==, zap_remove(os, object, propname, tx));
3872 * Testcase to test the upgrading of a microzap to fatzap.
3875 ztest_fzap(ztest_ds_t *zd, uint64_t id)
3877 objset_t *os = zd->zd_os;
3879 uint64_t object, txg;
3881 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
3883 if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
3886 object = od[0].od_object;
3889 * Add entries to this ZAP and make sure it spills over
3890 * and gets upgraded to a fatzap. Also, since we are adding
3891 * 2050 entries we should see ptrtbl growth and leaf-block split.
3893 for (int i = 0; i < 2050; i++) {
3894 char name[MAXNAMELEN];
3899 (void) snprintf(name, sizeof (name), "fzap-%llu-%llu",
3902 tx = dmu_tx_create(os);
3903 dmu_tx_hold_zap(tx, object, B_TRUE, name);
3904 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3907 error = zap_add(os, object, name, sizeof (uint64_t), 1,
3909 ASSERT(error == 0 || error == EEXIST);
3916 ztest_zap_parallel(ztest_ds_t *zd, uint64_t id)
3918 objset_t *os = zd->zd_os;
3920 uint64_t txg, object, count, wsize, wc, zl_wsize, zl_wc;
3922 int i, namelen, error;
3923 int micro = ztest_random(2);
3924 char name[20], string_value[20];
3927 ztest_od_init(&od[0], ID_PARALLEL, FTAG, micro, DMU_OT_ZAP_OTHER, 0, 0);
3929 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3932 object = od[0].od_object;
3935 * Generate a random name of the form 'xxx.....' where each
3936 * x is a random printable character and the dots are dots.
3937 * There are 94 such characters, and the name length goes from
3938 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
3940 namelen = ztest_random(sizeof (name) - 5) + 5 + 1;
3942 for (i = 0; i < 3; i++)
3943 name[i] = '!' + ztest_random('~' - '!' + 1);
3944 for (; i < namelen - 1; i++)
3948 if ((namelen & 1) || micro) {
3949 wsize = sizeof (txg);
3955 data = string_value;
3959 VERIFY(zap_count(os, object, &count) == 0);
3960 ASSERT(count != -1ULL);
3963 * Select an operation: length, lookup, add, update, remove.
3965 i = ztest_random(5);
3968 tx = dmu_tx_create(os);
3969 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
3970 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3973 bcopy(name, string_value, namelen);
3977 bzero(string_value, namelen);
3983 error = zap_length(os, object, name, &zl_wsize, &zl_wc);
3985 ASSERT3U(wsize, ==, zl_wsize);
3986 ASSERT3U(wc, ==, zl_wc);
3988 ASSERT3U(error, ==, ENOENT);
3993 error = zap_lookup(os, object, name, wsize, wc, data);
3995 if (data == string_value &&
3996 bcmp(name, data, namelen) != 0)
3997 fatal(0, "name '%s' != val '%s' len %d",
3998 name, data, namelen);
4000 ASSERT3U(error, ==, ENOENT);
4005 error = zap_add(os, object, name, wsize, wc, data, tx);
4006 ASSERT(error == 0 || error == EEXIST);
4010 VERIFY(zap_update(os, object, name, wsize, wc, data, tx) == 0);
4014 error = zap_remove(os, object, name, tx);
4015 ASSERT(error == 0 || error == ENOENT);
4024 * Commit callback data.
4026 typedef struct ztest_cb_data {
4027 list_node_t zcd_node;
4029 int zcd_expected_err;
4030 boolean_t zcd_added;
4031 boolean_t zcd_called;
4035 /* This is the actual commit callback function */
4037 ztest_commit_callback(void *arg, int error)
4039 ztest_cb_data_t *data = arg;
4040 uint64_t synced_txg;
4042 VERIFY(data != NULL);
4043 VERIFY3S(data->zcd_expected_err, ==, error);
4044 VERIFY(!data->zcd_called);
4046 synced_txg = spa_last_synced_txg(data->zcd_spa);
4047 if (data->zcd_txg > synced_txg)
4048 fatal(0, "commit callback of txg %" PRIu64 " called prematurely"
4049 ", last synced txg = %" PRIu64 "\n", data->zcd_txg,
4052 data->zcd_called = B_TRUE;
4054 if (error == ECANCELED) {
4055 ASSERT3U(data->zcd_txg, ==, 0);
4056 ASSERT(!data->zcd_added);
4059 * The private callback data should be destroyed here, but
4060 * since we are going to check the zcd_called field after
4061 * dmu_tx_abort(), we will destroy it there.
4066 /* Was this callback added to the global callback list? */
4067 if (!data->zcd_added)
4070 ASSERT3U(data->zcd_txg, !=, 0);
4072 /* Remove our callback from the list */
4073 (void) mutex_lock(&zcl.zcl_callbacks_lock);
4074 list_remove(&zcl.zcl_callbacks, data);
4075 (void) mutex_unlock(&zcl.zcl_callbacks_lock);
4078 umem_free(data, sizeof (ztest_cb_data_t));
4081 /* Allocate and initialize callback data structure */
4082 static ztest_cb_data_t *
4083 ztest_create_cb_data(objset_t *os, uint64_t txg)
4085 ztest_cb_data_t *cb_data;
4087 cb_data = umem_zalloc(sizeof (ztest_cb_data_t), UMEM_NOFAIL);
4089 cb_data->zcd_txg = txg;
4090 cb_data->zcd_spa = dmu_objset_spa(os);
4096 * If a number of txgs equal to this threshold have been created after a commit
4097 * callback has been registered but not called, then we assume there is an
4098 * implementation bug.
4100 #define ZTEST_COMMIT_CALLBACK_THRESH (TXG_CONCURRENT_STATES + 2)
4103 * Commit callback test.
4106 ztest_dmu_commit_callbacks(ztest_ds_t *zd, uint64_t id)
4108 objset_t *os = zd->zd_os;
4111 ztest_cb_data_t *cb_data[3], *tmp_cb;
4112 uint64_t old_txg, txg;
4115 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
4117 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
4120 tx = dmu_tx_create(os);
4122 cb_data[0] = ztest_create_cb_data(os, 0);
4123 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[0]);
4125 dmu_tx_hold_write(tx, od[0].od_object, 0, sizeof (uint64_t));
4127 /* Every once in a while, abort the transaction on purpose */
4128 if (ztest_random(100) == 0)
4132 error = dmu_tx_assign(tx, TXG_NOWAIT);
4134 txg = error ? 0 : dmu_tx_get_txg(tx);
4136 cb_data[0]->zcd_txg = txg;
4137 cb_data[1] = ztest_create_cb_data(os, txg);
4138 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[1]);
4142 * It's not a strict requirement to call the registered
4143 * callbacks from inside dmu_tx_abort(), but that's what
4144 * it's supposed to happen in the current implementation
4145 * so we will check for that.
4147 for (i = 0; i < 2; i++) {
4148 cb_data[i]->zcd_expected_err = ECANCELED;
4149 VERIFY(!cb_data[i]->zcd_called);
4154 for (i = 0; i < 2; i++) {
4155 VERIFY(cb_data[i]->zcd_called);
4156 umem_free(cb_data[i], sizeof (ztest_cb_data_t));
4162 cb_data[2] = ztest_create_cb_data(os, txg);
4163 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[2]);
4166 * Read existing data to make sure there isn't a future leak.
4168 VERIFY(0 == dmu_read(os, od[0].od_object, 0, sizeof (uint64_t),
4169 &old_txg, DMU_READ_PREFETCH));
4172 fatal(0, "future leak: got %" PRIu64 ", open txg is %" PRIu64,
4175 dmu_write(os, od[0].od_object, 0, sizeof (uint64_t), &txg, tx);
4177 (void) mutex_lock(&zcl.zcl_callbacks_lock);
4180 * Since commit callbacks don't have any ordering requirement and since
4181 * it is theoretically possible for a commit callback to be called
4182 * after an arbitrary amount of time has elapsed since its txg has been
4183 * synced, it is difficult to reliably determine whether a commit
4184 * callback hasn't been called due to high load or due to a flawed
4187 * In practice, we will assume that if after a certain number of txgs a
4188 * commit callback hasn't been called, then most likely there's an
4189 * implementation bug..
4191 tmp_cb = list_head(&zcl.zcl_callbacks);
4192 if (tmp_cb != NULL &&
4193 tmp_cb->zcd_txg > txg - ZTEST_COMMIT_CALLBACK_THRESH) {
4194 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4195 PRIu64 ", open txg: %" PRIu64 "\n", tmp_cb->zcd_txg, txg);
4199 * Let's find the place to insert our callbacks.
4201 * Even though the list is ordered by txg, it is possible for the
4202 * insertion point to not be the end because our txg may already be
4203 * quiescing at this point and other callbacks in the open txg
4204 * (from other objsets) may have sneaked in.
4206 tmp_cb = list_tail(&zcl.zcl_callbacks);
4207 while (tmp_cb != NULL && tmp_cb->zcd_txg > txg)
4208 tmp_cb = list_prev(&zcl.zcl_callbacks, tmp_cb);
4210 /* Add the 3 callbacks to the list */
4211 for (i = 0; i < 3; i++) {
4213 list_insert_head(&zcl.zcl_callbacks, cb_data[i]);
4215 list_insert_after(&zcl.zcl_callbacks, tmp_cb,
4218 cb_data[i]->zcd_added = B_TRUE;
4219 VERIFY(!cb_data[i]->zcd_called);
4221 tmp_cb = cb_data[i];
4224 (void) mutex_unlock(&zcl.zcl_callbacks_lock);
4231 ztest_dsl_prop_get_set(ztest_ds_t *zd, uint64_t id)
4233 zfs_prop_t proplist[] = {
4235 ZFS_PROP_COMPRESSION,
4239 ztest_shared_t *zs = ztest_shared;
4241 (void) rw_rdlock(&zs->zs_name_lock);
4243 for (int p = 0; p < sizeof (proplist) / sizeof (proplist[0]); p++)
4244 (void) ztest_dsl_prop_set_uint64(zd->zd_name, proplist[p],
4245 ztest_random_dsl_prop(proplist[p]), (int)ztest_random(2));
4247 (void) rw_unlock(&zs->zs_name_lock);
4252 ztest_spa_prop_get_set(ztest_ds_t *zd, uint64_t id)
4254 ztest_shared_t *zs = ztest_shared;
4255 nvlist_t *props = NULL;
4257 (void) rw_rdlock(&zs->zs_name_lock);
4259 (void) ztest_spa_prop_set_uint64(zs, ZPOOL_PROP_DEDUPDITTO,
4260 ZIO_DEDUPDITTO_MIN + ztest_random(ZIO_DEDUPDITTO_MIN));
4262 VERIFY3U(spa_prop_get(zs->zs_spa, &props), ==, 0);
4264 if (zopt_verbose >= 6)
4265 dump_nvlist(props, 4);
4269 (void) rw_unlock(&zs->zs_name_lock);
4273 * Test snapshot hold/release and deferred destroy.
4276 ztest_dmu_snapshot_hold(ztest_ds_t *zd, uint64_t id)
4279 objset_t *os = zd->zd_os;
4283 char clonename[100];
4285 char osname[MAXNAMELEN];
4287 (void) rw_rdlock(&ztest_shared->zs_name_lock);
4289 dmu_objset_name(os, osname);
4291 (void) snprintf(snapname, 100, "sh1_%llu", id);
4292 (void) snprintf(fullname, 100, "%s@%s", osname, snapname);
4293 (void) snprintf(clonename, 100, "%s/ch1_%llu", osname, id);
4294 (void) snprintf(tag, 100, "%tag_%llu", id);
4297 * Clean up from any previous run.
4299 (void) dmu_objset_destroy(clonename, B_FALSE);
4300 (void) dsl_dataset_user_release(osname, snapname, tag, B_FALSE);
4301 (void) dmu_objset_destroy(fullname, B_FALSE);
4304 * Create snapshot, clone it, mark snap for deferred destroy,
4305 * destroy clone, verify snap was also destroyed.
4307 error = dmu_objset_snapshot(osname, snapname, NULL, FALSE);
4309 if (error == ENOSPC) {
4310 ztest_record_enospc("dmu_objset_snapshot");
4313 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
4316 error = dmu_objset_hold(fullname, FTAG, &origin);
4318 fatal(0, "dmu_objset_hold(%s) = %d", fullname, error);
4320 error = dmu_objset_clone(clonename, dmu_objset_ds(origin), 0);
4321 dmu_objset_rele(origin, FTAG);
4323 if (error == ENOSPC) {
4324 ztest_record_enospc("dmu_objset_clone");
4327 fatal(0, "dmu_objset_clone(%s) = %d", clonename, error);
4330 error = dmu_objset_destroy(fullname, B_TRUE);
4332 fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d",
4336 error = dmu_objset_destroy(clonename, B_FALSE);
4338 fatal(0, "dmu_objset_destroy(%s) = %d", clonename, error);
4340 error = dmu_objset_hold(fullname, FTAG, &origin);
4341 if (error != ENOENT)
4342 fatal(0, "dmu_objset_hold(%s) = %d", fullname, error);
4345 * Create snapshot, add temporary hold, verify that we can't
4346 * destroy a held snapshot, mark for deferred destroy,
4347 * release hold, verify snapshot was destroyed.
4349 error = dmu_objset_snapshot(osname, snapname, NULL, FALSE);
4351 if (error == ENOSPC) {
4352 ztest_record_enospc("dmu_objset_snapshot");
4355 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
4358 error = dsl_dataset_user_hold(osname, snapname, tag, B_FALSE, B_TRUE);
4360 fatal(0, "dsl_dataset_user_hold(%s)", fullname, tag);
4362 error = dmu_objset_destroy(fullname, B_FALSE);
4363 if (error != EBUSY) {
4364 fatal(0, "dmu_objset_destroy(%s, B_FALSE) = %d",
4368 error = dmu_objset_destroy(fullname, B_TRUE);
4370 fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d",
4374 error = dsl_dataset_user_release(osname, snapname, tag, B_FALSE);
4376 fatal(0, "dsl_dataset_user_release(%s)", fullname, tag);
4378 VERIFY(dmu_objset_hold(fullname, FTAG, &origin) == ENOENT);
4381 (void) rw_unlock(&ztest_shared->zs_name_lock);
4385 * Inject random faults into the on-disk data.
4389 ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
4391 ztest_shared_t *zs = ztest_shared;
4392 spa_t *spa = zs->zs_spa;
4396 uint64_t bad = 0x1990c0ffeedecade;
4398 char path0[MAXPATHLEN];
4399 char pathrand[MAXPATHLEN];
4401 int bshift = SPA_MAXBLOCKSHIFT + 2; /* don't scrog all labels */
4407 boolean_t islog = B_FALSE;
4409 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
4410 maxfaults = MAXFAULTS();
4411 leaves = MAX(zs->zs_mirrors, 1) * zopt_raidz;
4412 mirror_save = zs->zs_mirrors;
4413 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
4415 ASSERT(leaves >= 1);
4418 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4420 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
4422 if (ztest_random(2) == 0) {
4424 * Inject errors on a normal data device or slog device.
4426 top = ztest_random_vdev_top(spa, B_TRUE);
4427 leaf = ztest_random(leaves) + zs->zs_splits;
4430 * Generate paths to the first leaf in this top-level vdev,
4431 * and to the random leaf we selected. We'll induce transient
4432 * write failures and random online/offline activity on leaf 0,
4433 * and we'll write random garbage to the randomly chosen leaf.
4435 (void) snprintf(path0, sizeof (path0), ztest_dev_template,
4436 zopt_dir, zopt_pool, top * leaves + zs->zs_splits);
4437 (void) snprintf(pathrand, sizeof (pathrand), ztest_dev_template,
4438 zopt_dir, zopt_pool, top * leaves + leaf);
4440 vd0 = vdev_lookup_by_path(spa->spa_root_vdev, path0);
4441 if (vd0 != NULL && vd0->vdev_top->vdev_islog)
4444 if (vd0 != NULL && maxfaults != 1) {
4446 * Make vd0 explicitly claim to be unreadable,
4447 * or unwriteable, or reach behind its back
4448 * and close the underlying fd. We can do this if
4449 * maxfaults == 0 because we'll fail and reexecute,
4450 * and we can do it if maxfaults >= 2 because we'll
4451 * have enough redundancy. If maxfaults == 1, the
4452 * combination of this with injection of random data
4453 * corruption below exceeds the pool's fault tolerance.
4455 vdev_file_t *vf = vd0->vdev_tsd;
4457 if (vf != NULL && ztest_random(3) == 0) {
4458 (void) close(vf->vf_vnode->v_fd);
4459 vf->vf_vnode->v_fd = -1;
4460 } else if (ztest_random(2) == 0) {
4461 vd0->vdev_cant_read = B_TRUE;
4463 vd0->vdev_cant_write = B_TRUE;
4465 guid0 = vd0->vdev_guid;
4469 * Inject errors on an l2cache device.
4471 spa_aux_vdev_t *sav = &spa->spa_l2cache;
4473 if (sav->sav_count == 0) {
4474 spa_config_exit(spa, SCL_STATE, FTAG);
4477 vd0 = sav->sav_vdevs[ztest_random(sav->sav_count)];
4478 guid0 = vd0->vdev_guid;
4479 (void) strcpy(path0, vd0->vdev_path);
4480 (void) strcpy(pathrand, vd0->vdev_path);
4484 maxfaults = INT_MAX; /* no limit on cache devices */
4487 spa_config_exit(spa, SCL_STATE, FTAG);
4490 * If we can tolerate two or more faults, or we're dealing
4491 * with a slog, randomly online/offline vd0.
4493 if ((maxfaults >= 2 || islog) && guid0 != 0) {
4494 if (ztest_random(10) < 6) {
4495 int flags = (ztest_random(2) == 0 ?
4496 ZFS_OFFLINE_TEMPORARY : 0);
4499 * We have to grab the zs_name_lock as writer to
4500 * prevent a race between offlining a slog and
4501 * destroying a dataset. Offlining the slog will
4502 * grab a reference on the dataset which may cause
4503 * dmu_objset_destroy() to fail with EBUSY thus
4504 * leaving the dataset in an inconsistent state.
4507 (void) rw_wrlock(&ztest_shared->zs_name_lock);
4509 VERIFY(vdev_offline(spa, guid0, flags) != EBUSY);
4512 (void) rw_unlock(&ztest_shared->zs_name_lock);
4514 (void) vdev_online(spa, guid0, 0, NULL);
4522 * We have at least single-fault tolerance, so inject data corruption.
4524 fd = open(pathrand, O_RDWR);
4526 if (fd == -1) /* we hit a gap in the device namespace */
4529 fsize = lseek(fd, 0, SEEK_END);
4531 while (--iters != 0) {
4532 offset = ztest_random(fsize / (leaves << bshift)) *
4533 (leaves << bshift) + (leaf << bshift) +
4534 (ztest_random(1ULL << (bshift - 1)) & -8ULL);
4536 if (offset >= fsize)
4539 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
4540 if (mirror_save != zs->zs_mirrors) {
4541 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
4546 if (pwrite(fd, &bad, sizeof (bad), offset) != sizeof (bad))
4547 fatal(1, "can't inject bad word at 0x%llx in %s",
4550 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
4552 if (zopt_verbose >= 7)
4553 (void) printf("injected bad word into %s,"
4554 " offset 0x%llx\n", pathrand, (u_longlong_t)offset);
4561 * Verify that DDT repair works as expected.
4564 ztest_ddt_repair(ztest_ds_t *zd, uint64_t id)
4566 ztest_shared_t *zs = ztest_shared;
4567 spa_t *spa = zs->zs_spa;
4568 objset_t *os = zd->zd_os;
4570 uint64_t object, blocksize, txg, pattern, psize;
4571 enum zio_checksum checksum = spa_dedup_checksum(spa);
4576 int copies = 2 * ZIO_DEDUPDITTO_MIN;
4578 blocksize = ztest_random_blocksize();
4579 blocksize = MIN(blocksize, 2048); /* because we write so many */
4581 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
4583 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
4587 * Take the name lock as writer to prevent anyone else from changing
4588 * the pool and dataset properies we need to maintain during this test.
4590 (void) rw_wrlock(&zs->zs_name_lock);
4592 if (ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_DEDUP, checksum,
4594 ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_COPIES, 1,
4596 (void) rw_unlock(&zs->zs_name_lock);
4600 object = od[0].od_object;
4601 blocksize = od[0].od_blocksize;
4602 pattern = spa_guid(spa) ^ dmu_objset_fsid_guid(os);
4604 ASSERT(object != 0);
4606 tx = dmu_tx_create(os);
4607 dmu_tx_hold_write(tx, object, 0, copies * blocksize);
4608 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
4610 (void) rw_unlock(&zs->zs_name_lock);
4615 * Write all the copies of our block.
4617 for (int i = 0; i < copies; i++) {
4618 uint64_t offset = i * blocksize;
4619 VERIFY(dmu_buf_hold(os, object, offset, FTAG, &db,
4620 DMU_READ_NO_PREFETCH) == 0);
4621 ASSERT(db->db_offset == offset);
4622 ASSERT(db->db_size == blocksize);
4623 ASSERT(ztest_pattern_match(db->db_data, db->db_size, pattern) ||
4624 ztest_pattern_match(db->db_data, db->db_size, 0ULL));
4625 dmu_buf_will_fill(db, tx);
4626 ztest_pattern_set(db->db_data, db->db_size, pattern);
4627 dmu_buf_rele(db, FTAG);
4631 txg_wait_synced(spa_get_dsl(spa), txg);
4634 * Find out what block we got.
4636 VERIFY(dmu_buf_hold(os, object, 0, FTAG, &db,
4637 DMU_READ_NO_PREFETCH) == 0);
4638 blk = *((dmu_buf_impl_t *)db)->db_blkptr;
4639 dmu_buf_rele(db, FTAG);
4642 * Damage the block. Dedup-ditto will save us when we read it later.
4644 psize = BP_GET_PSIZE(&blk);
4645 buf = zio_buf_alloc(psize);
4646 ztest_pattern_set(buf, psize, ~pattern);
4648 (void) zio_wait(zio_rewrite(NULL, spa, 0, &blk,
4649 buf, psize, NULL, NULL, ZIO_PRIORITY_SYNC_WRITE,
4650 ZIO_FLAG_CANFAIL | ZIO_FLAG_INDUCE_DAMAGE, NULL));
4652 zio_buf_free(buf, psize);
4654 (void) rw_unlock(&zs->zs_name_lock);
4662 ztest_scrub(ztest_ds_t *zd, uint64_t id)
4664 ztest_shared_t *zs = ztest_shared;
4665 spa_t *spa = zs->zs_spa;
4667 (void) spa_scan(spa, POOL_SCAN_SCRUB);
4668 (void) poll(NULL, 0, 100); /* wait a moment, then force a restart */
4669 (void) spa_scan(spa, POOL_SCAN_SCRUB);
4673 * Rename the pool to a different name and then rename it back.
4677 ztest_spa_rename(ztest_ds_t *zd, uint64_t id)
4679 ztest_shared_t *zs = ztest_shared;
4680 char *oldname, *newname;
4683 (void) rw_wrlock(&zs->zs_name_lock);
4685 oldname = zs->zs_pool;
4686 newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
4687 (void) strcpy(newname, oldname);
4688 (void) strcat(newname, "_tmp");
4693 VERIFY3U(0, ==, spa_rename(oldname, newname));
4696 * Try to open it under the old name, which shouldn't exist
4698 VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
4701 * Open it under the new name and make sure it's still the same spa_t.
4703 VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
4705 ASSERT(spa == zs->zs_spa);
4706 spa_close(spa, FTAG);
4709 * Rename it back to the original
4711 VERIFY3U(0, ==, spa_rename(newname, oldname));
4714 * Make sure it can still be opened
4716 VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
4718 ASSERT(spa == zs->zs_spa);
4719 spa_close(spa, FTAG);
4721 umem_free(newname, strlen(newname) + 1);
4723 (void) rw_unlock(&zs->zs_name_lock);
4727 * Verify pool integrity by running zdb.
4730 ztest_run_zdb(char *pool)
4733 char zdb[MAXPATHLEN + MAXNAMELEN + 20];
4741 (void) realpath(getexecname(), zdb);
4743 /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
4744 bin = strstr(zdb, "/usr/bin/");
4745 ztest = strstr(bin, "/ztest");
4747 isalen = ztest - isa;
4751 "/usr/sbin%.*s/zdb -bcc%s%s -U %s %s",
4754 zopt_verbose >= 3 ? "s" : "",
4755 zopt_verbose >= 4 ? "v" : "",
4760 if (zopt_verbose >= 5)
4761 (void) printf("Executing %s\n", strstr(zdb, "zdb "));
4763 fp = popen(zdb, "r");
4765 while (fgets(zbuf, sizeof (zbuf), fp) != NULL)
4766 if (zopt_verbose >= 3)
4767 (void) printf("%s", zbuf);
4769 status = pclose(fp);
4774 ztest_dump_core = 0;
4775 if (WIFEXITED(status))
4776 fatal(0, "'%s' exit code %d", zdb, WEXITSTATUS(status));
4778 fatal(0, "'%s' died with signal %d", zdb, WTERMSIG(status));
4782 ztest_walk_pool_directory(char *header)
4786 if (zopt_verbose >= 6)
4787 (void) printf("%s\n", header);
4789 mutex_enter(&spa_namespace_lock);
4790 while ((spa = spa_next(spa)) != NULL)
4791 if (zopt_verbose >= 6)
4792 (void) printf("\t%s\n", spa_name(spa));
4793 mutex_exit(&spa_namespace_lock);
4797 ztest_spa_import_export(char *oldname, char *newname)
4799 nvlist_t *config, *newconfig;
4803 if (zopt_verbose >= 4) {
4804 (void) printf("import/export: old = %s, new = %s\n",
4809 * Clean up from previous runs.
4811 (void) spa_destroy(newname);
4814 * Get the pool's configuration and guid.
4816 VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
4819 * Kick off a scrub to tickle scrub/export races.
4821 if (ztest_random(2) == 0)
4822 (void) spa_scan(spa, POOL_SCAN_SCRUB);
4824 pool_guid = spa_guid(spa);
4825 spa_close(spa, FTAG);
4827 ztest_walk_pool_directory("pools before export");
4832 VERIFY3U(0, ==, spa_export(oldname, &config, B_FALSE, B_FALSE));
4834 ztest_walk_pool_directory("pools after export");
4839 newconfig = spa_tryimport(config);
4840 ASSERT(newconfig != NULL);
4841 nvlist_free(newconfig);
4844 * Import it under the new name.
4846 VERIFY3U(0, ==, spa_import(newname, config, NULL));
4848 ztest_walk_pool_directory("pools after import");
4851 * Try to import it again -- should fail with EEXIST.
4853 VERIFY3U(EEXIST, ==, spa_import(newname, config, NULL));
4856 * Try to import it under a different name -- should fail with EEXIST.
4858 VERIFY3U(EEXIST, ==, spa_import(oldname, config, NULL));
4861 * Verify that the pool is no longer visible under the old name.
4863 VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
4866 * Verify that we can open and close the pool using the new name.
4868 VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
4869 ASSERT(pool_guid == spa_guid(spa));
4870 spa_close(spa, FTAG);
4872 nvlist_free(config);
4876 ztest_resume(spa_t *spa)
4878 if (spa_suspended(spa) && zopt_verbose >= 6)
4879 (void) printf("resuming from suspended state\n");
4880 spa_vdev_state_enter(spa, SCL_NONE);
4881 vdev_clear(spa, NULL);
4882 (void) spa_vdev_state_exit(spa, NULL, 0);
4883 (void) zio_resume(spa);
4887 ztest_resume_thread(void *arg)
4891 while (!ztest_exiting) {
4892 if (spa_suspended(spa))
4894 (void) poll(NULL, 0, 100);
4900 ztest_deadman_thread(void *arg)
4902 ztest_shared_t *zs = arg;
4906 delta = (zs->zs_thread_stop - zs->zs_thread_start) / NANOSEC + grace;
4908 (void) poll(NULL, 0, (int)(1000 * delta));
4910 fatal(0, "failed to complete within %d seconds of deadline", grace);
4916 ztest_execute(ztest_info_t *zi, uint64_t id)
4918 ztest_shared_t *zs = ztest_shared;
4919 ztest_ds_t *zd = &zs->zs_zd[id % zopt_datasets];
4920 hrtime_t functime = gethrtime();
4922 for (int i = 0; i < zi->zi_iters; i++)
4923 zi->zi_func(zd, id);
4925 functime = gethrtime() - functime;
4927 atomic_add_64(&zi->zi_call_count, 1);
4928 atomic_add_64(&zi->zi_call_time, functime);
4930 if (zopt_verbose >= 4) {
4932 (void) dladdr((void *)zi->zi_func, &dli);
4933 (void) printf("%6.2f sec in %s\n",
4934 (double)functime / NANOSEC, dli.dli_sname);
4939 ztest_thread(void *arg)
4941 uint64_t id = (uintptr_t)arg;
4942 ztest_shared_t *zs = ztest_shared;
4947 while ((now = gethrtime()) < zs->zs_thread_stop) {
4949 * See if it's time to force a crash.
4951 if (now > zs->zs_thread_kill)
4955 * If we're getting ENOSPC with some regularity, stop.
4957 if (zs->zs_enospc_count > 10)
4961 * Pick a random function to execute.
4963 zi = &zs->zs_info[ztest_random(ZTEST_FUNCS)];
4964 call_next = zi->zi_call_next;
4966 if (now >= call_next &&
4967 atomic_cas_64(&zi->zi_call_next, call_next, call_next +
4968 ztest_random(2 * zi->zi_interval[0] + 1)) == call_next)
4969 ztest_execute(zi, id);
4976 ztest_dataset_name(char *dsname, char *pool, int d)
4978 (void) snprintf(dsname, MAXNAMELEN, "%s/ds_%d", pool, d);
4982 ztest_dataset_destroy(ztest_shared_t *zs, int d)
4984 char name[MAXNAMELEN];
4986 ztest_dataset_name(name, zs->zs_pool, d);
4988 if (zopt_verbose >= 3)
4989 (void) printf("Destroying %s to free up space\n", name);
4992 * Cleanup any non-standard clones and snapshots. In general,
4993 * ztest thread t operates on dataset (t % zopt_datasets),
4994 * so there may be more than one thing to clean up.
4996 for (int t = d; t < zopt_threads; t += zopt_datasets)
4997 ztest_dsl_dataset_cleanup(name, t);
4999 (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
5000 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
5004 ztest_dataset_dirobj_verify(ztest_ds_t *zd)
5006 uint64_t usedobjs, dirobjs, scratch;
5009 * ZTEST_DIROBJ is the object directory for the entire dataset.
5010 * Therefore, the number of objects in use should equal the
5011 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5012 * If not, we have an object leak.
5014 * Note that we can only check this in ztest_dataset_open(),
5015 * when the open-context and syncing-context values agree.
5016 * That's because zap_count() returns the open-context value,
5017 * while dmu_objset_space() returns the rootbp fill count.
5019 VERIFY3U(0, ==, zap_count(zd->zd_os, ZTEST_DIROBJ, &dirobjs));
5020 dmu_objset_space(zd->zd_os, &scratch, &scratch, &usedobjs, &scratch);
5021 ASSERT3U(dirobjs + 1, ==, usedobjs);
5025 ztest_dataset_open(ztest_shared_t *zs, int d)
5027 ztest_ds_t *zd = &zs->zs_zd[d];
5028 uint64_t committed_seq = zd->zd_seq;
5031 char name[MAXNAMELEN];
5034 ztest_dataset_name(name, zs->zs_pool, d);
5036 (void) rw_rdlock(&zs->zs_name_lock);
5038 error = ztest_dataset_create(name);
5039 if (error == ENOSPC) {
5040 (void) rw_unlock(&zs->zs_name_lock);
5041 ztest_record_enospc(FTAG);
5044 ASSERT(error == 0 || error == EEXIST);
5046 VERIFY3U(dmu_objset_hold(name, zd, &os), ==, 0);
5047 (void) rw_unlock(&zs->zs_name_lock);
5049 ztest_zd_init(zd, os);
5051 zilog = zd->zd_zilog;
5053 if (zilog->zl_header->zh_claim_lr_seq != 0 &&
5054 zilog->zl_header->zh_claim_lr_seq < committed_seq)
5055 fatal(0, "missing log records: claimed %llu < committed %llu",
5056 zilog->zl_header->zh_claim_lr_seq, committed_seq);
5058 ztest_dataset_dirobj_verify(zd);
5060 zil_replay(os, zd, ztest_replay_vector);
5062 ztest_dataset_dirobj_verify(zd);
5064 if (zopt_verbose >= 6)
5065 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5067 (u_longlong_t)zilog->zl_parse_blk_count,
5068 (u_longlong_t)zilog->zl_parse_lr_count,
5069 (u_longlong_t)zilog->zl_replaying_seq);
5071 zilog = zil_open(os, ztest_get_data);
5073 if (zilog->zl_replaying_seq != 0 &&
5074 zilog->zl_replaying_seq < committed_seq)
5075 fatal(0, "missing log records: replayed %llu < committed %llu",
5076 zilog->zl_replaying_seq, committed_seq);
5082 ztest_dataset_close(ztest_shared_t *zs, int d)
5084 ztest_ds_t *zd = &zs->zs_zd[d];
5086 zil_close(zd->zd_zilog);
5087 dmu_objset_rele(zd->zd_os, zd);
5093 * Kick off threads to run tests on all datasets in parallel.
5096 ztest_run(ztest_shared_t *zs)
5100 thread_t resume_tid;
5103 ztest_exiting = B_FALSE;
5106 * Initialize parent/child shared state.
5108 VERIFY(_mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL) == 0);
5109 VERIFY(rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL) == 0);
5111 zs->zs_thread_start = gethrtime();
5112 zs->zs_thread_stop = zs->zs_thread_start + zopt_passtime * NANOSEC;
5113 zs->zs_thread_stop = MIN(zs->zs_thread_stop, zs->zs_proc_stop);
5114 zs->zs_thread_kill = zs->zs_thread_stop;
5115 if (ztest_random(100) < zopt_killrate)
5116 zs->zs_thread_kill -= ztest_random(zopt_passtime * NANOSEC);
5118 (void) _mutex_init(&zcl.zcl_callbacks_lock, USYNC_THREAD, NULL);
5120 list_create(&zcl.zcl_callbacks, sizeof (ztest_cb_data_t),
5121 offsetof(ztest_cb_data_t, zcd_node));
5126 kernel_init(FREAD | FWRITE);
5127 VERIFY(spa_open(zs->zs_pool, &spa, FTAG) == 0);
5130 spa->spa_dedup_ditto = 2 * ZIO_DEDUPDITTO_MIN;
5133 * We don't expect the pool to suspend unless maxfaults == 0,
5134 * in which case ztest_fault_inject() temporarily takes away
5135 * the only valid replica.
5137 if (MAXFAULTS() == 0)
5138 spa->spa_failmode = ZIO_FAILURE_MODE_WAIT;
5140 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC;
5143 * Create a thread to periodically resume suspended I/O.
5145 VERIFY(thr_create(0, 0, ztest_resume_thread, spa, THR_BOUND,
5149 * Create a deadman thread to abort() if we hang.
5151 VERIFY(thr_create(0, 0, ztest_deadman_thread, zs, THR_BOUND,
5155 * Verify that we can safely inquire about about any object,
5156 * whether it's allocated or not. To make it interesting,
5157 * we probe a 5-wide window around each power of two.
5158 * This hits all edge cases, including zero and the max.
5160 for (int t = 0; t < 64; t++) {
5161 for (int d = -5; d <= 5; d++) {
5162 error = dmu_object_info(spa->spa_meta_objset,
5163 (1ULL << t) + d, NULL);
5164 ASSERT(error == 0 || error == ENOENT ||
5170 * If we got any ENOSPC errors on the previous run, destroy something.
5172 if (zs->zs_enospc_count != 0) {
5173 int d = ztest_random(zopt_datasets);
5174 ztest_dataset_destroy(zs, d);
5176 zs->zs_enospc_count = 0;
5178 tid = umem_zalloc(zopt_threads * sizeof (thread_t), UMEM_NOFAIL);
5180 if (zopt_verbose >= 4)
5181 (void) printf("starting main threads...\n");
5184 * Kick off all the tests that run in parallel.
5186 for (int t = 0; t < zopt_threads; t++) {
5187 if (t < zopt_datasets && ztest_dataset_open(zs, t) != 0)
5189 VERIFY(thr_create(0, 0, ztest_thread, (void *)(uintptr_t)t,
5190 THR_BOUND, &tid[t]) == 0);
5194 * Wait for all of the tests to complete. We go in reverse order
5195 * so we don't close datasets while threads are still using them.
5197 for (int t = zopt_threads - 1; t >= 0; t--) {
5198 VERIFY(thr_join(tid[t], NULL, NULL) == 0);
5199 if (t < zopt_datasets)
5200 ztest_dataset_close(zs, t);
5203 txg_wait_synced(spa_get_dsl(spa), 0);
5205 zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
5206 zs->zs_space = metaslab_class_get_space(spa_normal_class(spa));
5208 umem_free(tid, zopt_threads * sizeof (thread_t));
5210 /* Kill the resume thread */
5211 ztest_exiting = B_TRUE;
5212 VERIFY(thr_join(resume_tid, NULL, NULL) == 0);
5216 * Right before closing the pool, kick off a bunch of async I/O;
5217 * spa_close() should wait for it to complete.
5219 for (uint64_t object = 1; object < 50; object++)
5220 dmu_prefetch(spa->spa_meta_objset, object, 0, 1ULL << 20);
5222 spa_close(spa, FTAG);
5225 * Verify that we can loop over all pools.
5227 mutex_enter(&spa_namespace_lock);
5228 for (spa = spa_next(NULL); spa != NULL; spa = spa_next(spa))
5229 if (zopt_verbose > 3)
5230 (void) printf("spa_next: found %s\n", spa_name(spa));
5231 mutex_exit(&spa_namespace_lock);
5234 * Verify that we can export the pool and reimport it under a
5237 if (ztest_random(2) == 0) {
5238 char name[MAXNAMELEN];
5239 (void) snprintf(name, MAXNAMELEN, "%s_import", zs->zs_pool);
5240 ztest_spa_import_export(zs->zs_pool, name);
5241 ztest_spa_import_export(name, zs->zs_pool);
5248 ztest_freeze(ztest_shared_t *zs)
5250 ztest_ds_t *zd = &zs->zs_zd[0];
5254 if (zopt_verbose >= 3)
5255 (void) printf("testing spa_freeze()...\n");
5257 kernel_init(FREAD | FWRITE);
5258 VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
5259 VERIFY3U(0, ==, ztest_dataset_open(zs, 0));
5262 * Force the first log block to be transactionally allocated.
5263 * We have to do this before we freeze the pool -- otherwise
5264 * the log chain won't be anchored.
5266 while (BP_IS_HOLE(&zd->zd_zilog->zl_header->zh_log)) {
5267 ztest_dmu_object_alloc_free(zd, 0);
5268 zil_commit(zd->zd_zilog, UINT64_MAX, 0);
5271 txg_wait_synced(spa_get_dsl(spa), 0);
5274 * Freeze the pool. This stops spa_sync() from doing anything,
5275 * so that the only way to record changes from now on is the ZIL.
5280 * Run tests that generate log records but don't alter the pool config
5281 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5282 * We do a txg_wait_synced() after each iteration to force the txg
5283 * to increase well beyond the last synced value in the uberblock.
5284 * The ZIL should be OK with that.
5286 while (ztest_random(10) != 0 && numloops++ < zopt_maxloops) {
5287 ztest_dmu_write_parallel(zd, 0);
5288 ztest_dmu_object_alloc_free(zd, 0);
5289 txg_wait_synced(spa_get_dsl(spa), 0);
5293 * Commit all of the changes we just generated.
5295 zil_commit(zd->zd_zilog, UINT64_MAX, 0);
5296 txg_wait_synced(spa_get_dsl(spa), 0);
5299 * Close our dataset and close the pool.
5301 ztest_dataset_close(zs, 0);
5302 spa_close(spa, FTAG);
5306 * Open and close the pool and dataset to induce log replay.
5308 kernel_init(FREAD | FWRITE);
5309 VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
5310 VERIFY3U(0, ==, ztest_dataset_open(zs, 0));
5311 ztest_dataset_close(zs, 0);
5312 spa_close(spa, FTAG);
5315 list_destroy(&zcl.zcl_callbacks);
5317 (void) _mutex_destroy(&zcl.zcl_callbacks_lock);
5319 (void) rwlock_destroy(&zs->zs_name_lock);
5320 (void) _mutex_destroy(&zs->zs_vdev_lock);
5324 print_time(hrtime_t t, char *timebuf)
5326 hrtime_t s = t / NANOSEC;
5327 hrtime_t m = s / 60;
5328 hrtime_t h = m / 60;
5329 hrtime_t d = h / 24;
5338 (void) sprintf(timebuf,
5339 "%llud%02lluh%02llum%02llus", d, h, m, s);
5341 (void) sprintf(timebuf, "%lluh%02llum%02llus", h, m, s);
5343 (void) sprintf(timebuf, "%llum%02llus", m, s);
5345 (void) sprintf(timebuf, "%llus", s);
5353 if (ztest_random(2) == 0)
5356 VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0);
5357 VERIFY(nvlist_add_uint64(props, "autoreplace", 1) == 0);
5359 (void) printf("props:\n");
5360 dump_nvlist(props, 4);
5366 * Create a storage pool with the given name and initial vdev size.
5367 * Then test spa_freeze() functionality.
5370 ztest_init(ztest_shared_t *zs)
5373 nvlist_t *nvroot, *props;
5375 VERIFY(_mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL) == 0);
5376 VERIFY(rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL) == 0);
5378 kernel_init(FREAD | FWRITE);
5381 * Create the storage pool.
5383 (void) spa_destroy(zs->zs_pool);
5384 ztest_shared->zs_vdev_next_leaf = 0;
5386 zs->zs_mirrors = zopt_mirrors;
5387 nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0,
5388 0, zopt_raidz, zs->zs_mirrors, 1);
5389 props = make_random_props();
5390 VERIFY3U(0, ==, spa_create(zs->zs_pool, nvroot, props, NULL, NULL));
5391 nvlist_free(nvroot);
5393 VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
5394 metaslab_sz = 1ULL << spa->spa_root_vdev->vdev_child[0]->vdev_ms_shift;
5395 spa_close(spa, FTAG);
5399 ztest_run_zdb(zs->zs_pool);
5403 ztest_run_zdb(zs->zs_pool);
5407 main(int argc, char **argv)
5418 (void) setvbuf(stdout, NULL, _IOLBF, 0);
5420 ztest_random_fd = open("/dev/urandom", O_RDONLY);
5422 process_options(argc, argv);
5424 /* Override location of zpool.cache */
5425 (void) asprintf((char **)&spa_config_path, "%s/zpool.cache", zopt_dir);
5428 * Blow away any existing copy of zpool.cache
5431 (void) remove(spa_config_path);
5433 shared_size = sizeof (*zs) + zopt_datasets * sizeof (ztest_ds_t);
5435 zs = ztest_shared = (void *)mmap(0,
5436 P2ROUNDUP(shared_size, getpagesize()),
5437 PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0);
5439 if (zopt_verbose >= 1) {
5440 (void) printf("%llu vdevs, %d datasets, %d threads,"
5441 " %llu seconds...\n",
5442 (u_longlong_t)zopt_vdevs, zopt_datasets, zopt_threads,
5443 (u_longlong_t)zopt_time);
5447 * Create and initialize our storage pool.
5449 for (int i = 1; i <= zopt_init; i++) {
5450 bzero(zs, sizeof (ztest_shared_t));
5451 if (zopt_verbose >= 3 && zopt_init != 1)
5452 (void) printf("ztest_init(), pass %d\n", i);
5453 zs->zs_pool = zopt_pool;
5457 zs->zs_pool = zopt_pool;
5458 zs->zs_proc_start = gethrtime();
5459 zs->zs_proc_stop = zs->zs_proc_start + zopt_time * NANOSEC;
5461 for (int f = 0; f < ZTEST_FUNCS; f++) {
5462 zi = &zs->zs_info[f];
5463 *zi = ztest_info[f];
5464 if (zs->zs_proc_start + zi->zi_interval[0] > zs->zs_proc_stop)
5465 zi->zi_call_next = UINT64_MAX;
5467 zi->zi_call_next = zs->zs_proc_start +
5468 ztest_random(2 * zi->zi_interval[0] + 1);
5472 * Run the tests in a loop. These tests include fault injection
5473 * to verify that self-healing data works, and forced crashes
5474 * to verify that we never lose on-disk consistency.
5476 while (gethrtime() < zs->zs_proc_stop) {
5481 * Initialize the workload counters for each function.
5483 for (int f = 0; f < ZTEST_FUNCS; f++) {
5484 zi = &zs->zs_info[f];
5485 zi->zi_call_count = 0;
5486 zi->zi_call_time = 0;
5489 /* Set the allocation switch size */
5490 metaslab_df_alloc_threshold = ztest_random(metaslab_sz / 4) + 1;
5495 fatal(1, "fork failed");
5497 if (pid == 0) { /* child */
5498 struct rlimit rl = { 1024, 1024 };
5499 (void) setrlimit(RLIMIT_NOFILE, &rl);
5500 (void) enable_extended_FILE_stdio(-1, -1);
5505 while (waitpid(pid, &status, 0) != pid)
5508 if (WIFEXITED(status)) {
5509 if (WEXITSTATUS(status) != 0) {
5510 (void) fprintf(stderr,
5511 "child exited with code %d\n",
5512 WEXITSTATUS(status));
5515 } else if (WIFSIGNALED(status)) {
5516 if (WTERMSIG(status) != SIGKILL) {
5517 (void) fprintf(stderr,
5518 "child died with signal %d\n",
5524 (void) fprintf(stderr, "something strange happened "
5531 if (zopt_verbose >= 1) {
5532 hrtime_t now = gethrtime();
5534 now = MIN(now, zs->zs_proc_stop);
5535 print_time(zs->zs_proc_stop - now, timebuf);
5536 nicenum(zs->zs_space, numbuf);
5538 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
5539 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
5541 WIFEXITED(status) ? "Complete" : "SIGKILL",
5542 (u_longlong_t)zs->zs_enospc_count,
5543 100.0 * zs->zs_alloc / zs->zs_space,
5545 100.0 * (now - zs->zs_proc_start) /
5546 (zopt_time * NANOSEC), timebuf);
5549 if (zopt_verbose >= 2) {
5550 (void) printf("\nWorkload summary:\n\n");
5551 (void) printf("%7s %9s %s\n",
5552 "Calls", "Time", "Function");
5553 (void) printf("%7s %9s %s\n",
5554 "-----", "----", "--------");
5555 for (int f = 0; f < ZTEST_FUNCS; f++) {
5558 zi = &zs->zs_info[f];
5559 print_time(zi->zi_call_time, timebuf);
5560 (void) dladdr((void *)zi->zi_func, &dli);
5561 (void) printf("%7llu %9s %s\n",
5562 (u_longlong_t)zi->zi_call_count, timebuf,
5565 (void) printf("\n");
5569 * It's possible that we killed a child during a rename test,
5570 * in which case we'll have a 'ztest_tmp' pool lying around
5571 * instead of 'ztest'. Do a blind rename in case this happened.
5574 if (spa_open(zopt_pool, &spa, FTAG) == 0) {
5575 spa_close(spa, FTAG);
5577 char tmpname[MAXNAMELEN];
5579 kernel_init(FREAD | FWRITE);
5580 (void) snprintf(tmpname, sizeof (tmpname), "%s_tmp",
5582 (void) spa_rename(tmpname, zopt_pool);
5586 ztest_run_zdb(zopt_pool);
5589 if (zopt_verbose >= 1) {
5590 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
5591 kills, iters - kills, (100.0 * kills) / MAX(1, iters));