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 zil_itx_assign(zd->zd_zilog, itx, tx);
1123 ztest_log_remove(ztest_ds_t *zd, dmu_tx_t *tx, lr_remove_t *lr, uint64_t object)
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 itx->itx_oid = object;
1137 zil_itx_assign(zd->zd_zilog, itx, tx);
1141 ztest_log_write(ztest_ds_t *zd, dmu_tx_t *tx, lr_write_t *lr)
1144 itx_wr_state_t write_state = ztest_random(WR_NUM_STATES);
1146 if (zil_replaying(zd->zd_zilog, tx))
1149 if (lr->lr_length > ZIL_MAX_LOG_DATA)
1150 write_state = WR_INDIRECT;
1152 itx = zil_itx_create(TX_WRITE,
1153 sizeof (*lr) + (write_state == WR_COPIED ? lr->lr_length : 0));
1155 if (write_state == WR_COPIED &&
1156 dmu_read(zd->zd_os, lr->lr_foid, lr->lr_offset, lr->lr_length,
1157 ((lr_write_t *)&itx->itx_lr) + 1, DMU_READ_NO_PREFETCH) != 0) {
1158 zil_itx_destroy(itx);
1159 itx = zil_itx_create(TX_WRITE, sizeof (*lr));
1160 write_state = WR_NEED_COPY;
1162 itx->itx_private = zd;
1163 itx->itx_wr_state = write_state;
1164 itx->itx_sync = (ztest_random(8) == 0);
1165 itx->itx_sod += (write_state == WR_NEED_COPY ? lr->lr_length : 0);
1167 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1168 sizeof (*lr) - sizeof (lr_t));
1170 zil_itx_assign(zd->zd_zilog, itx, tx);
1174 ztest_log_truncate(ztest_ds_t *zd, dmu_tx_t *tx, lr_truncate_t *lr)
1178 if (zil_replaying(zd->zd_zilog, tx))
1181 itx = zil_itx_create(TX_TRUNCATE, sizeof (*lr));
1182 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1183 sizeof (*lr) - sizeof (lr_t));
1185 itx->itx_sync = B_FALSE;
1186 zil_itx_assign(zd->zd_zilog, itx, tx);
1190 ztest_log_setattr(ztest_ds_t *zd, dmu_tx_t *tx, lr_setattr_t *lr)
1194 if (zil_replaying(zd->zd_zilog, tx))
1197 itx = zil_itx_create(TX_SETATTR, sizeof (*lr));
1198 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1199 sizeof (*lr) - sizeof (lr_t));
1201 itx->itx_sync = B_FALSE;
1202 zil_itx_assign(zd->zd_zilog, itx, tx);
1209 ztest_replay_create(ztest_ds_t *zd, lr_create_t *lr, boolean_t byteswap)
1211 char *name = (void *)(lr + 1); /* name follows lr */
1212 objset_t *os = zd->zd_os;
1213 ztest_block_tag_t *bbt;
1220 byteswap_uint64_array(lr, sizeof (*lr));
1222 ASSERT(lr->lr_doid == ZTEST_DIROBJ);
1223 ASSERT(name[0] != '\0');
1225 tx = dmu_tx_create(os);
1227 dmu_tx_hold_zap(tx, lr->lr_doid, B_TRUE, name);
1229 if (lr->lrz_type == DMU_OT_ZAP_OTHER) {
1230 dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL);
1232 dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT);
1235 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1239 ASSERT(dmu_objset_zil(os)->zl_replay == !!lr->lr_foid);
1241 if (lr->lrz_type == DMU_OT_ZAP_OTHER) {
1242 if (lr->lr_foid == 0) {
1243 lr->lr_foid = zap_create(os,
1244 lr->lrz_type, lr->lrz_bonustype,
1245 lr->lrz_bonuslen, tx);
1247 error = zap_create_claim(os, lr->lr_foid,
1248 lr->lrz_type, lr->lrz_bonustype,
1249 lr->lrz_bonuslen, tx);
1252 if (lr->lr_foid == 0) {
1253 lr->lr_foid = dmu_object_alloc(os,
1254 lr->lrz_type, 0, lr->lrz_bonustype,
1255 lr->lrz_bonuslen, tx);
1257 error = dmu_object_claim(os, lr->lr_foid,
1258 lr->lrz_type, 0, lr->lrz_bonustype,
1259 lr->lrz_bonuslen, tx);
1264 ASSERT3U(error, ==, EEXIST);
1265 ASSERT(zd->zd_zilog->zl_replay);
1270 ASSERT(lr->lr_foid != 0);
1272 if (lr->lrz_type != DMU_OT_ZAP_OTHER)
1273 VERIFY3U(0, ==, dmu_object_set_blocksize(os, lr->lr_foid,
1274 lr->lrz_blocksize, lr->lrz_ibshift, tx));
1276 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1277 bbt = ztest_bt_bonus(db);
1278 dmu_buf_will_dirty(db, tx);
1279 ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_gen, txg, txg);
1280 dmu_buf_rele(db, FTAG);
1282 VERIFY3U(0, ==, zap_add(os, lr->lr_doid, name, sizeof (uint64_t), 1,
1285 (void) ztest_log_create(zd, tx, lr);
1293 ztest_replay_remove(ztest_ds_t *zd, lr_remove_t *lr, boolean_t byteswap)
1295 char *name = (void *)(lr + 1); /* name follows lr */
1296 objset_t *os = zd->zd_os;
1297 dmu_object_info_t doi;
1299 uint64_t object, txg;
1302 byteswap_uint64_array(lr, sizeof (*lr));
1304 ASSERT(lr->lr_doid == ZTEST_DIROBJ);
1305 ASSERT(name[0] != '\0');
1308 zap_lookup(os, lr->lr_doid, name, sizeof (object), 1, &object));
1309 ASSERT(object != 0);
1311 ztest_object_lock(zd, object, RL_WRITER);
1313 VERIFY3U(0, ==, dmu_object_info(os, object, &doi));
1315 tx = dmu_tx_create(os);
1317 dmu_tx_hold_zap(tx, lr->lr_doid, B_FALSE, name);
1318 dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END);
1320 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1322 ztest_object_unlock(zd, object);
1326 if (doi.doi_type == DMU_OT_ZAP_OTHER) {
1327 VERIFY3U(0, ==, zap_destroy(os, object, tx));
1329 VERIFY3U(0, ==, dmu_object_free(os, object, tx));
1332 VERIFY3U(0, ==, zap_remove(os, lr->lr_doid, name, tx));
1334 (void) ztest_log_remove(zd, tx, lr, object);
1338 ztest_object_unlock(zd, object);
1344 ztest_replay_write(ztest_ds_t *zd, lr_write_t *lr, boolean_t byteswap)
1346 objset_t *os = zd->zd_os;
1347 void *data = lr + 1; /* data follows lr */
1348 uint64_t offset, length;
1349 ztest_block_tag_t *bt = data;
1350 ztest_block_tag_t *bbt;
1351 uint64_t gen, txg, lrtxg, crtxg;
1352 dmu_object_info_t doi;
1355 arc_buf_t *abuf = NULL;
1359 byteswap_uint64_array(lr, sizeof (*lr));
1361 offset = lr->lr_offset;
1362 length = lr->lr_length;
1364 /* If it's a dmu_sync() block, write the whole block */
1365 if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
1366 uint64_t blocksize = BP_GET_LSIZE(&lr->lr_blkptr);
1367 if (length < blocksize) {
1368 offset -= offset % blocksize;
1373 if (bt->bt_magic == BSWAP_64(BT_MAGIC))
1374 byteswap_uint64_array(bt, sizeof (*bt));
1376 if (bt->bt_magic != BT_MAGIC)
1379 ztest_object_lock(zd, lr->lr_foid, RL_READER);
1380 rl = ztest_range_lock(zd, lr->lr_foid, offset, length, RL_WRITER);
1382 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1384 dmu_object_info_from_db(db, &doi);
1386 bbt = ztest_bt_bonus(db);
1387 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1389 crtxg = bbt->bt_crtxg;
1390 lrtxg = lr->lr_common.lrc_txg;
1392 tx = dmu_tx_create(os);
1394 dmu_tx_hold_write(tx, lr->lr_foid, offset, length);
1396 if (ztest_random(8) == 0 && length == doi.doi_data_block_size &&
1397 P2PHASE(offset, length) == 0)
1398 abuf = dmu_request_arcbuf(db, length);
1400 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1403 dmu_return_arcbuf(abuf);
1404 dmu_buf_rele(db, FTAG);
1405 ztest_range_unlock(rl);
1406 ztest_object_unlock(zd, lr->lr_foid);
1412 * Usually, verify the old data before writing new data --
1413 * but not always, because we also want to verify correct
1414 * behavior when the data was not recently read into cache.
1416 ASSERT(offset % doi.doi_data_block_size == 0);
1417 if (ztest_random(4) != 0) {
1418 int prefetch = ztest_random(2) ?
1419 DMU_READ_PREFETCH : DMU_READ_NO_PREFETCH;
1420 ztest_block_tag_t rbt;
1422 VERIFY(dmu_read(os, lr->lr_foid, offset,
1423 sizeof (rbt), &rbt, prefetch) == 0);
1424 if (rbt.bt_magic == BT_MAGIC) {
1425 ztest_bt_verify(&rbt, os, lr->lr_foid,
1426 offset, gen, txg, crtxg);
1431 * Writes can appear to be newer than the bonus buffer because
1432 * the ztest_get_data() callback does a dmu_read() of the
1433 * open-context data, which may be different than the data
1434 * as it was when the write was generated.
1436 if (zd->zd_zilog->zl_replay) {
1437 ztest_bt_verify(bt, os, lr->lr_foid, offset,
1438 MAX(gen, bt->bt_gen), MAX(txg, lrtxg),
1443 * Set the bt's gen/txg to the bonus buffer's gen/txg
1444 * so that all of the usual ASSERTs will work.
1446 ztest_bt_generate(bt, os, lr->lr_foid, offset, gen, txg, crtxg);
1450 dmu_write(os, lr->lr_foid, offset, length, data, tx);
1452 bcopy(data, abuf->b_data, length);
1453 dmu_assign_arcbuf(db, offset, abuf, tx);
1456 (void) ztest_log_write(zd, tx, lr);
1458 dmu_buf_rele(db, FTAG);
1462 ztest_range_unlock(rl);
1463 ztest_object_unlock(zd, lr->lr_foid);
1469 ztest_replay_truncate(ztest_ds_t *zd, lr_truncate_t *lr, boolean_t byteswap)
1471 objset_t *os = zd->zd_os;
1477 byteswap_uint64_array(lr, sizeof (*lr));
1479 ztest_object_lock(zd, lr->lr_foid, RL_READER);
1480 rl = ztest_range_lock(zd, lr->lr_foid, lr->lr_offset, lr->lr_length,
1483 tx = dmu_tx_create(os);
1485 dmu_tx_hold_free(tx, lr->lr_foid, lr->lr_offset, lr->lr_length);
1487 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1489 ztest_range_unlock(rl);
1490 ztest_object_unlock(zd, lr->lr_foid);
1494 VERIFY(dmu_free_range(os, lr->lr_foid, lr->lr_offset,
1495 lr->lr_length, tx) == 0);
1497 (void) ztest_log_truncate(zd, tx, lr);
1501 ztest_range_unlock(rl);
1502 ztest_object_unlock(zd, lr->lr_foid);
1508 ztest_replay_setattr(ztest_ds_t *zd, lr_setattr_t *lr, boolean_t byteswap)
1510 objset_t *os = zd->zd_os;
1513 ztest_block_tag_t *bbt;
1514 uint64_t txg, lrtxg, crtxg;
1517 byteswap_uint64_array(lr, sizeof (*lr));
1519 ztest_object_lock(zd, lr->lr_foid, RL_WRITER);
1521 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1523 tx = dmu_tx_create(os);
1524 dmu_tx_hold_bonus(tx, lr->lr_foid);
1526 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1528 dmu_buf_rele(db, FTAG);
1529 ztest_object_unlock(zd, lr->lr_foid);
1533 bbt = ztest_bt_bonus(db);
1534 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1535 crtxg = bbt->bt_crtxg;
1536 lrtxg = lr->lr_common.lrc_txg;
1538 if (zd->zd_zilog->zl_replay) {
1539 ASSERT(lr->lr_size != 0);
1540 ASSERT(lr->lr_mode != 0);
1544 * Randomly change the size and increment the generation.
1546 lr->lr_size = (ztest_random(db->db_size / sizeof (*bbt)) + 1) *
1548 lr->lr_mode = bbt->bt_gen + 1;
1553 * Verify that the current bonus buffer is not newer than our txg.
1555 ztest_bt_verify(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode,
1556 MAX(txg, lrtxg), crtxg);
1558 dmu_buf_will_dirty(db, tx);
1560 ASSERT3U(lr->lr_size, >=, sizeof (*bbt));
1561 ASSERT3U(lr->lr_size, <=, db->db_size);
1562 VERIFY3U(dmu_set_bonus(db, lr->lr_size, tx), ==, 0);
1563 bbt = ztest_bt_bonus(db);
1565 ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode, txg, crtxg);
1567 dmu_buf_rele(db, FTAG);
1569 (void) ztest_log_setattr(zd, tx, lr);
1573 ztest_object_unlock(zd, lr->lr_foid);
1578 zil_replay_func_t *ztest_replay_vector[TX_MAX_TYPE] = {
1579 NULL, /* 0 no such transaction type */
1580 ztest_replay_create, /* TX_CREATE */
1581 NULL, /* TX_MKDIR */
1582 NULL, /* TX_MKXATTR */
1583 NULL, /* TX_SYMLINK */
1584 ztest_replay_remove, /* TX_REMOVE */
1585 NULL, /* TX_RMDIR */
1587 NULL, /* TX_RENAME */
1588 ztest_replay_write, /* TX_WRITE */
1589 ztest_replay_truncate, /* TX_TRUNCATE */
1590 ztest_replay_setattr, /* TX_SETATTR */
1592 NULL, /* TX_CREATE_ACL */
1593 NULL, /* TX_CREATE_ATTR */
1594 NULL, /* TX_CREATE_ACL_ATTR */
1595 NULL, /* TX_MKDIR_ACL */
1596 NULL, /* TX_MKDIR_ATTR */
1597 NULL, /* TX_MKDIR_ACL_ATTR */
1598 NULL, /* TX_WRITE2 */
1602 * ZIL get_data callbacks
1606 ztest_get_done(zgd_t *zgd, int error)
1608 ztest_ds_t *zd = zgd->zgd_private;
1609 uint64_t object = zgd->zgd_rl->rl_object;
1612 dmu_buf_rele(zgd->zgd_db, zgd);
1614 ztest_range_unlock(zgd->zgd_rl);
1615 ztest_object_unlock(zd, object);
1617 if (error == 0 && zgd->zgd_bp)
1618 zil_add_block(zgd->zgd_zilog, zgd->zgd_bp);
1620 umem_free(zgd, sizeof (*zgd));
1624 ztest_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio)
1626 ztest_ds_t *zd = arg;
1627 objset_t *os = zd->zd_os;
1628 uint64_t object = lr->lr_foid;
1629 uint64_t offset = lr->lr_offset;
1630 uint64_t size = lr->lr_length;
1631 blkptr_t *bp = &lr->lr_blkptr;
1632 uint64_t txg = lr->lr_common.lrc_txg;
1634 dmu_object_info_t doi;
1639 ztest_object_lock(zd, object, RL_READER);
1640 error = dmu_bonus_hold(os, object, FTAG, &db);
1642 ztest_object_unlock(zd, object);
1646 crtxg = ztest_bt_bonus(db)->bt_crtxg;
1648 if (crtxg == 0 || crtxg > txg) {
1649 dmu_buf_rele(db, FTAG);
1650 ztest_object_unlock(zd, object);
1654 dmu_object_info_from_db(db, &doi);
1655 dmu_buf_rele(db, FTAG);
1658 zgd = umem_zalloc(sizeof (*zgd), UMEM_NOFAIL);
1659 zgd->zgd_zilog = zd->zd_zilog;
1660 zgd->zgd_private = zd;
1662 if (buf != NULL) { /* immediate write */
1663 zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
1666 error = dmu_read(os, object, offset, size, buf,
1667 DMU_READ_NO_PREFETCH);
1670 size = doi.doi_data_block_size;
1672 offset = P2ALIGN(offset, size);
1674 ASSERT(offset < size);
1678 zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
1681 error = dmu_buf_hold(os, object, offset, zgd, &db,
1682 DMU_READ_NO_PREFETCH);
1688 ASSERT(db->db_offset == offset);
1689 ASSERT(db->db_size == size);
1691 error = dmu_sync(zio, lr->lr_common.lrc_txg,
1692 ztest_get_done, zgd);
1699 ztest_get_done(zgd, error);
1705 ztest_lr_alloc(size_t lrsize, char *name)
1708 size_t namesize = name ? strlen(name) + 1 : 0;
1710 lr = umem_zalloc(lrsize + namesize, UMEM_NOFAIL);
1713 bcopy(name, lr + lrsize, namesize);
1719 ztest_lr_free(void *lr, size_t lrsize, char *name)
1721 size_t namesize = name ? strlen(name) + 1 : 0;
1723 umem_free(lr, lrsize + namesize);
1727 * Lookup a bunch of objects. Returns the number of objects not found.
1730 ztest_lookup(ztest_ds_t *zd, ztest_od_t *od, int count)
1735 ASSERT(_mutex_held(&zd->zd_dirobj_lock));
1737 for (int i = 0; i < count; i++, od++) {
1739 error = zap_lookup(zd->zd_os, od->od_dir, od->od_name,
1740 sizeof (uint64_t), 1, &od->od_object);
1742 ASSERT(error == ENOENT);
1743 ASSERT(od->od_object == 0);
1747 ztest_block_tag_t *bbt;
1748 dmu_object_info_t doi;
1750 ASSERT(od->od_object != 0);
1751 ASSERT(missing == 0); /* there should be no gaps */
1753 ztest_object_lock(zd, od->od_object, RL_READER);
1754 VERIFY3U(0, ==, dmu_bonus_hold(zd->zd_os,
1755 od->od_object, FTAG, &db));
1756 dmu_object_info_from_db(db, &doi);
1757 bbt = ztest_bt_bonus(db);
1758 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1759 od->od_type = doi.doi_type;
1760 od->od_blocksize = doi.doi_data_block_size;
1761 od->od_gen = bbt->bt_gen;
1762 dmu_buf_rele(db, FTAG);
1763 ztest_object_unlock(zd, od->od_object);
1771 ztest_create(ztest_ds_t *zd, ztest_od_t *od, int count)
1775 ASSERT(_mutex_held(&zd->zd_dirobj_lock));
1777 for (int i = 0; i < count; i++, od++) {
1784 lr_create_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
1786 lr->lr_doid = od->od_dir;
1787 lr->lr_foid = 0; /* 0 to allocate, > 0 to claim */
1788 lr->lrz_type = od->od_crtype;
1789 lr->lrz_blocksize = od->od_crblocksize;
1790 lr->lrz_ibshift = ztest_random_ibshift();
1791 lr->lrz_bonustype = DMU_OT_UINT64_OTHER;
1792 lr->lrz_bonuslen = dmu_bonus_max();
1793 lr->lr_gen = od->od_crgen;
1794 lr->lr_crtime[0] = time(NULL);
1796 if (ztest_replay_create(zd, lr, B_FALSE) != 0) {
1797 ASSERT(missing == 0);
1801 od->od_object = lr->lr_foid;
1802 od->od_type = od->od_crtype;
1803 od->od_blocksize = od->od_crblocksize;
1804 od->od_gen = od->od_crgen;
1805 ASSERT(od->od_object != 0);
1808 ztest_lr_free(lr, sizeof (*lr), od->od_name);
1815 ztest_remove(ztest_ds_t *zd, ztest_od_t *od, int count)
1820 ASSERT(_mutex_held(&zd->zd_dirobj_lock));
1824 for (int i = count - 1; i >= 0; i--, od--) {
1830 if (od->od_object == 0)
1833 lr_remove_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
1835 lr->lr_doid = od->od_dir;
1837 if ((error = ztest_replay_remove(zd, lr, B_FALSE)) != 0) {
1838 ASSERT3U(error, ==, ENOSPC);
1843 ztest_lr_free(lr, sizeof (*lr), od->od_name);
1850 ztest_write(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size,
1856 lr = ztest_lr_alloc(sizeof (*lr) + size, NULL);
1858 lr->lr_foid = object;
1859 lr->lr_offset = offset;
1860 lr->lr_length = size;
1862 BP_ZERO(&lr->lr_blkptr);
1864 bcopy(data, lr + 1, size);
1866 error = ztest_replay_write(zd, lr, B_FALSE);
1868 ztest_lr_free(lr, sizeof (*lr) + size, NULL);
1874 ztest_truncate(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
1879 lr = ztest_lr_alloc(sizeof (*lr), NULL);
1881 lr->lr_foid = object;
1882 lr->lr_offset = offset;
1883 lr->lr_length = size;
1885 error = ztest_replay_truncate(zd, lr, B_FALSE);
1887 ztest_lr_free(lr, sizeof (*lr), NULL);
1893 ztest_setattr(ztest_ds_t *zd, uint64_t object)
1898 lr = ztest_lr_alloc(sizeof (*lr), NULL);
1900 lr->lr_foid = object;
1904 error = ztest_replay_setattr(zd, lr, B_FALSE);
1906 ztest_lr_free(lr, sizeof (*lr), NULL);
1912 ztest_prealloc(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
1914 objset_t *os = zd->zd_os;
1919 txg_wait_synced(dmu_objset_pool(os), 0);
1921 ztest_object_lock(zd, object, RL_READER);
1922 rl = ztest_range_lock(zd, object, offset, size, RL_WRITER);
1924 tx = dmu_tx_create(os);
1926 dmu_tx_hold_write(tx, object, offset, size);
1928 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1931 dmu_prealloc(os, object, offset, size, tx);
1933 txg_wait_synced(dmu_objset_pool(os), txg);
1935 (void) dmu_free_long_range(os, object, offset, size);
1938 ztest_range_unlock(rl);
1939 ztest_object_unlock(zd, object);
1943 ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
1945 ztest_block_tag_t wbt;
1946 dmu_object_info_t doi;
1947 enum ztest_io_type io_type;
1951 VERIFY(dmu_object_info(zd->zd_os, object, &doi) == 0);
1952 blocksize = doi.doi_data_block_size;
1953 data = umem_alloc(blocksize, UMEM_NOFAIL);
1956 * Pick an i/o type at random, biased toward writing block tags.
1958 io_type = ztest_random(ZTEST_IO_TYPES);
1959 if (ztest_random(2) == 0)
1960 io_type = ZTEST_IO_WRITE_TAG;
1964 case ZTEST_IO_WRITE_TAG:
1965 ztest_bt_generate(&wbt, zd->zd_os, object, offset, 0, 0, 0);
1966 (void) ztest_write(zd, object, offset, sizeof (wbt), &wbt);
1969 case ZTEST_IO_WRITE_PATTERN:
1970 (void) memset(data, 'a' + (object + offset) % 5, blocksize);
1971 if (ztest_random(2) == 0) {
1973 * Induce fletcher2 collisions to ensure that
1974 * zio_ddt_collision() detects and resolves them
1975 * when using fletcher2-verify for deduplication.
1977 ((uint64_t *)data)[0] ^= 1ULL << 63;
1978 ((uint64_t *)data)[4] ^= 1ULL << 63;
1980 (void) ztest_write(zd, object, offset, blocksize, data);
1983 case ZTEST_IO_WRITE_ZEROES:
1984 bzero(data, blocksize);
1985 (void) ztest_write(zd, object, offset, blocksize, data);
1988 case ZTEST_IO_TRUNCATE:
1989 (void) ztest_truncate(zd, object, offset, blocksize);
1992 case ZTEST_IO_SETATTR:
1993 (void) ztest_setattr(zd, object);
1997 umem_free(data, blocksize);
2001 * Initialize an object description template.
2004 ztest_od_init(ztest_od_t *od, uint64_t id, char *tag, uint64_t index,
2005 dmu_object_type_t type, uint64_t blocksize, uint64_t gen)
2007 od->od_dir = ZTEST_DIROBJ;
2010 od->od_crtype = type;
2011 od->od_crblocksize = blocksize ? blocksize : ztest_random_blocksize();
2014 od->od_type = DMU_OT_NONE;
2015 od->od_blocksize = 0;
2018 (void) snprintf(od->od_name, sizeof (od->od_name), "%s(%lld)[%llu]",
2019 tag, (int64_t)id, index);
2023 * Lookup or create the objects for a test using the od template.
2024 * If the objects do not all exist, or if 'remove' is specified,
2025 * remove any existing objects and create new ones. Otherwise,
2026 * use the existing objects.
2029 ztest_object_init(ztest_ds_t *zd, ztest_od_t *od, size_t size, boolean_t remove)
2031 int count = size / sizeof (*od);
2034 VERIFY(mutex_lock(&zd->zd_dirobj_lock) == 0);
2035 if ((ztest_lookup(zd, od, count) != 0 || remove) &&
2036 (ztest_remove(zd, od, count) != 0 ||
2037 ztest_create(zd, od, count) != 0))
2040 VERIFY(mutex_unlock(&zd->zd_dirobj_lock) == 0);
2047 ztest_zil_commit(ztest_ds_t *zd, uint64_t id)
2049 zilog_t *zilog = zd->zd_zilog;
2051 zil_commit(zilog, ztest_random(ZTEST_OBJECTS));
2054 * Remember the committed values in zd, which is in parent/child
2055 * shared memory. If we die, the next iteration of ztest_run()
2056 * will verify that the log really does contain this record.
2058 mutex_enter(&zilog->zl_lock);
2059 ASSERT(zd->zd_seq <= zilog->zl_commit_lr_seq);
2060 zd->zd_seq = zilog->zl_commit_lr_seq;
2061 mutex_exit(&zilog->zl_lock);
2065 * Verify that we can't destroy an active pool, create an existing pool,
2066 * or create a pool with a bad vdev spec.
2070 ztest_spa_create_destroy(ztest_ds_t *zd, uint64_t id)
2072 ztest_shared_t *zs = ztest_shared;
2077 * Attempt to create using a bad file.
2079 nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
2080 VERIFY3U(ENOENT, ==,
2081 spa_create("ztest_bad_file", nvroot, NULL, NULL, NULL));
2082 nvlist_free(nvroot);
2085 * Attempt to create using a bad mirror.
2087 nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 2, 1);
2088 VERIFY3U(ENOENT, ==,
2089 spa_create("ztest_bad_mirror", nvroot, NULL, NULL, NULL));
2090 nvlist_free(nvroot);
2093 * Attempt to create an existing pool. It shouldn't matter
2094 * what's in the nvroot; we should fail with EEXIST.
2096 (void) rw_rdlock(&zs->zs_name_lock);
2097 nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
2098 VERIFY3U(EEXIST, ==, spa_create(zs->zs_pool, nvroot, NULL, NULL, NULL));
2099 nvlist_free(nvroot);
2100 VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
2101 VERIFY3U(EBUSY, ==, spa_destroy(zs->zs_pool));
2102 spa_close(spa, FTAG);
2104 (void) rw_unlock(&zs->zs_name_lock);
2108 vdev_lookup_by_path(vdev_t *vd, const char *path)
2112 if (vd->vdev_path != NULL && strcmp(path, vd->vdev_path) == 0)
2115 for (int c = 0; c < vd->vdev_children; c++)
2116 if ((mvd = vdev_lookup_by_path(vd->vdev_child[c], path)) !=
2124 * Find the first available hole which can be used as a top-level.
2127 find_vdev_hole(spa_t *spa)
2129 vdev_t *rvd = spa->spa_root_vdev;
2132 ASSERT(spa_config_held(spa, SCL_VDEV, RW_READER) == SCL_VDEV);
2134 for (c = 0; c < rvd->vdev_children; c++) {
2135 vdev_t *cvd = rvd->vdev_child[c];
2137 if (cvd->vdev_ishole)
2144 * Verify that vdev_add() works as expected.
2148 ztest_vdev_add_remove(ztest_ds_t *zd, uint64_t id)
2150 ztest_shared_t *zs = ztest_shared;
2151 spa_t *spa = zs->zs_spa;
2157 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2158 leaves = MAX(zs->zs_mirrors + zs->zs_splits, 1) * zopt_raidz;
2160 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2162 ztest_shared->zs_vdev_next_leaf = find_vdev_hole(spa) * leaves;
2165 * If we have slogs then remove them 1/4 of the time.
2167 if (spa_has_slogs(spa) && ztest_random(4) == 0) {
2169 * Grab the guid from the head of the log class rotor.
2171 guid = spa_log_class(spa)->mc_rotor->mg_vd->vdev_guid;
2173 spa_config_exit(spa, SCL_VDEV, FTAG);
2176 * We have to grab the zs_name_lock as writer to
2177 * prevent a race between removing a slog (dmu_objset_find)
2178 * and destroying a dataset. Removing the slog will
2179 * grab a reference on the dataset which may cause
2180 * dmu_objset_destroy() to fail with EBUSY thus
2181 * leaving the dataset in an inconsistent state.
2183 VERIFY(rw_wrlock(&ztest_shared->zs_name_lock) == 0);
2184 error = spa_vdev_remove(spa, guid, B_FALSE);
2185 VERIFY(rw_unlock(&ztest_shared->zs_name_lock) == 0);
2187 if (error && error != EEXIST)
2188 fatal(0, "spa_vdev_remove() = %d", error);
2190 spa_config_exit(spa, SCL_VDEV, FTAG);
2193 * Make 1/4 of the devices be log devices.
2195 nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0,
2196 ztest_random(4) == 0, zopt_raidz, zs->zs_mirrors, 1);
2198 error = spa_vdev_add(spa, nvroot);
2199 nvlist_free(nvroot);
2201 if (error == ENOSPC)
2202 ztest_record_enospc("spa_vdev_add");
2203 else if (error != 0)
2204 fatal(0, "spa_vdev_add() = %d", error);
2207 VERIFY(mutex_unlock(&ztest_shared->zs_vdev_lock) == 0);
2211 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2215 ztest_vdev_aux_add_remove(ztest_ds_t *zd, uint64_t id)
2217 ztest_shared_t *zs = ztest_shared;
2218 spa_t *spa = zs->zs_spa;
2219 vdev_t *rvd = spa->spa_root_vdev;
2220 spa_aux_vdev_t *sav;
2225 if (ztest_random(2) == 0) {
2226 sav = &spa->spa_spares;
2227 aux = ZPOOL_CONFIG_SPARES;
2229 sav = &spa->spa_l2cache;
2230 aux = ZPOOL_CONFIG_L2CACHE;
2233 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2235 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2237 if (sav->sav_count != 0 && ztest_random(4) == 0) {
2239 * Pick a random device to remove.
2241 guid = sav->sav_vdevs[ztest_random(sav->sav_count)]->vdev_guid;
2244 * Find an unused device we can add.
2246 zs->zs_vdev_aux = 0;
2248 char path[MAXPATHLEN];
2250 (void) sprintf(path, ztest_aux_template, zopt_dir,
2251 zopt_pool, aux, zs->zs_vdev_aux);
2252 for (c = 0; c < sav->sav_count; c++)
2253 if (strcmp(sav->sav_vdevs[c]->vdev_path,
2256 if (c == sav->sav_count &&
2257 vdev_lookup_by_path(rvd, path) == NULL)
2263 spa_config_exit(spa, SCL_VDEV, FTAG);
2269 nvlist_t *nvroot = make_vdev_root(NULL, aux,
2270 (zopt_vdev_size * 5) / 4, 0, 0, 0, 0, 1);
2271 error = spa_vdev_add(spa, nvroot);
2273 fatal(0, "spa_vdev_add(%p) = %d", nvroot, error);
2274 nvlist_free(nvroot);
2277 * Remove an existing device. Sometimes, dirty its
2278 * vdev state first to make sure we handle removal
2279 * of devices that have pending state changes.
2281 if (ztest_random(2) == 0)
2282 (void) vdev_online(spa, guid, 0, NULL);
2284 error = spa_vdev_remove(spa, guid, B_FALSE);
2285 if (error != 0 && error != EBUSY)
2286 fatal(0, "spa_vdev_remove(%llu) = %d", guid, error);
2289 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2293 * split a pool if it has mirror tlvdevs
2297 ztest_split_pool(ztest_ds_t *zd, uint64_t id)
2299 ztest_shared_t *zs = ztest_shared;
2300 spa_t *spa = zs->zs_spa;
2301 vdev_t *rvd = spa->spa_root_vdev;
2302 nvlist_t *tree, **child, *config, *split, **schild;
2303 uint_t c, children, schildren = 0, lastlogid = 0;
2306 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2308 /* ensure we have a useable config; mirrors of raidz aren't supported */
2309 if (zs->zs_mirrors < 3 || zopt_raidz > 1) {
2310 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2314 /* clean up the old pool, if any */
2315 (void) spa_destroy("splitp");
2317 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2319 /* generate a config from the existing config */
2320 mutex_enter(&spa->spa_props_lock);
2321 VERIFY(nvlist_lookup_nvlist(spa->spa_config, ZPOOL_CONFIG_VDEV_TREE,
2323 mutex_exit(&spa->spa_props_lock);
2325 VERIFY(nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child,
2328 schild = malloc(rvd->vdev_children * sizeof (nvlist_t *));
2329 for (c = 0; c < children; c++) {
2330 vdev_t *tvd = rvd->vdev_child[c];
2334 if (tvd->vdev_islog || tvd->vdev_ops == &vdev_hole_ops) {
2335 VERIFY(nvlist_alloc(&schild[schildren], NV_UNIQUE_NAME,
2337 VERIFY(nvlist_add_string(schild[schildren],
2338 ZPOOL_CONFIG_TYPE, VDEV_TYPE_HOLE) == 0);
2339 VERIFY(nvlist_add_uint64(schild[schildren],
2340 ZPOOL_CONFIG_IS_HOLE, 1) == 0);
2342 lastlogid = schildren;
2347 VERIFY(nvlist_lookup_nvlist_array(child[c],
2348 ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0);
2349 VERIFY(nvlist_dup(mchild[0], &schild[schildren++], 0) == 0);
2352 /* OK, create a config that can be used to split */
2353 VERIFY(nvlist_alloc(&split, NV_UNIQUE_NAME, 0) == 0);
2354 VERIFY(nvlist_add_string(split, ZPOOL_CONFIG_TYPE,
2355 VDEV_TYPE_ROOT) == 0);
2356 VERIFY(nvlist_add_nvlist_array(split, ZPOOL_CONFIG_CHILDREN, schild,
2357 lastlogid != 0 ? lastlogid : schildren) == 0);
2359 VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, 0) == 0);
2360 VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, split) == 0);
2362 for (c = 0; c < schildren; c++)
2363 nvlist_free(schild[c]);
2367 spa_config_exit(spa, SCL_VDEV, FTAG);
2369 (void) rw_wrlock(&zs->zs_name_lock);
2370 error = spa_vdev_split_mirror(spa, "splitp", config, NULL, B_FALSE);
2371 (void) rw_unlock(&zs->zs_name_lock);
2373 nvlist_free(config);
2376 (void) printf("successful split - results:\n");
2377 mutex_enter(&spa_namespace_lock);
2378 show_pool_stats(spa);
2379 show_pool_stats(spa_lookup("splitp"));
2380 mutex_exit(&spa_namespace_lock);
2384 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2389 * Verify that we can attach and detach devices.
2393 ztest_vdev_attach_detach(ztest_ds_t *zd, uint64_t id)
2395 ztest_shared_t *zs = ztest_shared;
2396 spa_t *spa = zs->zs_spa;
2397 spa_aux_vdev_t *sav = &spa->spa_spares;
2398 vdev_t *rvd = spa->spa_root_vdev;
2399 vdev_t *oldvd, *newvd, *pvd;
2403 uint64_t ashift = ztest_get_ashift();
2404 uint64_t oldguid, pguid;
2405 size_t oldsize, newsize;
2406 char oldpath[MAXPATHLEN], newpath[MAXPATHLEN];
2408 int oldvd_has_siblings = B_FALSE;
2409 int newvd_is_spare = B_FALSE;
2411 int error, expected_error;
2413 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2414 leaves = MAX(zs->zs_mirrors, 1) * zopt_raidz;
2416 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2419 * Decide whether to do an attach or a replace.
2421 replacing = ztest_random(2);
2424 * Pick a random top-level vdev.
2426 top = ztest_random_vdev_top(spa, B_TRUE);
2429 * Pick a random leaf within it.
2431 leaf = ztest_random(leaves);
2436 oldvd = rvd->vdev_child[top];
2437 if (zs->zs_mirrors >= 1) {
2438 ASSERT(oldvd->vdev_ops == &vdev_mirror_ops);
2439 ASSERT(oldvd->vdev_children >= zs->zs_mirrors);
2440 oldvd = oldvd->vdev_child[leaf / zopt_raidz];
2442 if (zopt_raidz > 1) {
2443 ASSERT(oldvd->vdev_ops == &vdev_raidz_ops);
2444 ASSERT(oldvd->vdev_children == zopt_raidz);
2445 oldvd = oldvd->vdev_child[leaf % zopt_raidz];
2449 * If we're already doing an attach or replace, oldvd may be a
2450 * mirror vdev -- in which case, pick a random child.
2452 while (oldvd->vdev_children != 0) {
2453 oldvd_has_siblings = B_TRUE;
2454 ASSERT(oldvd->vdev_children >= 2);
2455 oldvd = oldvd->vdev_child[ztest_random(oldvd->vdev_children)];
2458 oldguid = oldvd->vdev_guid;
2459 oldsize = vdev_get_min_asize(oldvd);
2460 oldvd_is_log = oldvd->vdev_top->vdev_islog;
2461 (void) strcpy(oldpath, oldvd->vdev_path);
2462 pvd = oldvd->vdev_parent;
2463 pguid = pvd->vdev_guid;
2466 * If oldvd has siblings, then half of the time, detach it.
2468 if (oldvd_has_siblings && ztest_random(2) == 0) {
2469 spa_config_exit(spa, SCL_VDEV, FTAG);
2470 error = spa_vdev_detach(spa, oldguid, pguid, B_FALSE);
2471 if (error != 0 && error != ENODEV && error != EBUSY &&
2473 fatal(0, "detach (%s) returned %d", oldpath, error);
2474 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2479 * For the new vdev, choose with equal probability between the two
2480 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2482 if (sav->sav_count != 0 && ztest_random(3) == 0) {
2483 newvd = sav->sav_vdevs[ztest_random(sav->sav_count)];
2484 newvd_is_spare = B_TRUE;
2485 (void) strcpy(newpath, newvd->vdev_path);
2487 (void) snprintf(newpath, sizeof (newpath), ztest_dev_template,
2488 zopt_dir, zopt_pool, top * leaves + leaf);
2489 if (ztest_random(2) == 0)
2490 newpath[strlen(newpath) - 1] = 'b';
2491 newvd = vdev_lookup_by_path(rvd, newpath);
2495 newsize = vdev_get_min_asize(newvd);
2498 * Make newsize a little bigger or smaller than oldsize.
2499 * If it's smaller, the attach should fail.
2500 * If it's larger, and we're doing a replace,
2501 * we should get dynamic LUN growth when we're done.
2503 newsize = 10 * oldsize / (9 + ztest_random(3));
2507 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2508 * unless it's a replace; in that case any non-replacing parent is OK.
2510 * If newvd is already part of the pool, it should fail with EBUSY.
2512 * If newvd is too small, it should fail with EOVERFLOW.
2514 if (pvd->vdev_ops != &vdev_mirror_ops &&
2515 pvd->vdev_ops != &vdev_root_ops && (!replacing ||
2516 pvd->vdev_ops == &vdev_replacing_ops ||
2517 pvd->vdev_ops == &vdev_spare_ops))
2518 expected_error = ENOTSUP;
2519 else if (newvd_is_spare && (!replacing || oldvd_is_log))
2520 expected_error = ENOTSUP;
2521 else if (newvd == oldvd)
2522 expected_error = replacing ? 0 : EBUSY;
2523 else if (vdev_lookup_by_path(rvd, newpath) != NULL)
2524 expected_error = EBUSY;
2525 else if (newsize < oldsize)
2526 expected_error = EOVERFLOW;
2527 else if (ashift > oldvd->vdev_top->vdev_ashift)
2528 expected_error = EDOM;
2532 spa_config_exit(spa, SCL_VDEV, FTAG);
2535 * Build the nvlist describing newpath.
2537 root = make_vdev_root(newpath, NULL, newvd == NULL ? newsize : 0,
2538 ashift, 0, 0, 0, 1);
2540 error = spa_vdev_attach(spa, oldguid, root, replacing);
2545 * If our parent was the replacing vdev, but the replace completed,
2546 * then instead of failing with ENOTSUP we may either succeed,
2547 * fail with ENODEV, or fail with EOVERFLOW.
2549 if (expected_error == ENOTSUP &&
2550 (error == 0 || error == ENODEV || error == EOVERFLOW))
2551 expected_error = error;
2554 * If someone grew the LUN, the replacement may be too small.
2556 if (error == EOVERFLOW || error == EBUSY)
2557 expected_error = error;
2559 /* XXX workaround 6690467 */
2560 if (error != expected_error && expected_error != EBUSY) {
2561 fatal(0, "attach (%s %llu, %s %llu, %d) "
2562 "returned %d, expected %d",
2563 oldpath, (longlong_t)oldsize, newpath,
2564 (longlong_t)newsize, replacing, error, expected_error);
2567 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2571 * Callback function which expands the physical size of the vdev.
2574 grow_vdev(vdev_t *vd, void *arg)
2576 spa_t *spa = vd->vdev_spa;
2577 size_t *newsize = arg;
2581 ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
2582 ASSERT(vd->vdev_ops->vdev_op_leaf);
2584 if ((fd = open(vd->vdev_path, O_RDWR)) == -1)
2587 fsize = lseek(fd, 0, SEEK_END);
2588 (void) ftruncate(fd, *newsize);
2590 if (zopt_verbose >= 6) {
2591 (void) printf("%s grew from %lu to %lu bytes\n",
2592 vd->vdev_path, (ulong_t)fsize, (ulong_t)*newsize);
2599 * Callback function which expands a given vdev by calling vdev_online().
2603 online_vdev(vdev_t *vd, void *arg)
2605 spa_t *spa = vd->vdev_spa;
2606 vdev_t *tvd = vd->vdev_top;
2607 uint64_t guid = vd->vdev_guid;
2608 uint64_t generation = spa->spa_config_generation + 1;
2609 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
2612 ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
2613 ASSERT(vd->vdev_ops->vdev_op_leaf);
2615 /* Calling vdev_online will initialize the new metaslabs */
2616 spa_config_exit(spa, SCL_STATE, spa);
2617 error = vdev_online(spa, guid, ZFS_ONLINE_EXPAND, &newstate);
2618 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
2621 * If vdev_online returned an error or the underlying vdev_open
2622 * failed then we abort the expand. The only way to know that
2623 * vdev_open fails is by checking the returned newstate.
2625 if (error || newstate != VDEV_STATE_HEALTHY) {
2626 if (zopt_verbose >= 5) {
2627 (void) printf("Unable to expand vdev, state %llu, "
2628 "error %d\n", (u_longlong_t)newstate, error);
2632 ASSERT3U(newstate, ==, VDEV_STATE_HEALTHY);
2635 * Since we dropped the lock we need to ensure that we're
2636 * still talking to the original vdev. It's possible this
2637 * vdev may have been detached/replaced while we were
2638 * trying to online it.
2640 if (generation != spa->spa_config_generation) {
2641 if (zopt_verbose >= 5) {
2642 (void) printf("vdev configuration has changed, "
2643 "guid %llu, state %llu, expected gen %llu, "
2646 (u_longlong_t)tvd->vdev_state,
2647 (u_longlong_t)generation,
2648 (u_longlong_t)spa->spa_config_generation);
2656 * Traverse the vdev tree calling the supplied function.
2657 * We continue to walk the tree until we either have walked all
2658 * children or we receive a non-NULL return from the callback.
2659 * If a NULL callback is passed, then we just return back the first
2660 * leaf vdev we encounter.
2663 vdev_walk_tree(vdev_t *vd, vdev_t *(*func)(vdev_t *, void *), void *arg)
2665 if (vd->vdev_ops->vdev_op_leaf) {
2669 return (func(vd, arg));
2672 for (uint_t c = 0; c < vd->vdev_children; c++) {
2673 vdev_t *cvd = vd->vdev_child[c];
2674 if ((cvd = vdev_walk_tree(cvd, func, arg)) != NULL)
2681 * Verify that dynamic LUN growth works as expected.
2685 ztest_vdev_LUN_growth(ztest_ds_t *zd, uint64_t id)
2687 ztest_shared_t *zs = ztest_shared;
2688 spa_t *spa = zs->zs_spa;
2690 metaslab_class_t *mc;
2691 metaslab_group_t *mg;
2692 size_t psize, newsize;
2694 uint64_t old_class_space, new_class_space, old_ms_count, new_ms_count;
2696 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
2697 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
2699 top = ztest_random_vdev_top(spa, B_TRUE);
2701 tvd = spa->spa_root_vdev->vdev_child[top];
2704 old_ms_count = tvd->vdev_ms_count;
2705 old_class_space = metaslab_class_get_space(mc);
2708 * Determine the size of the first leaf vdev associated with
2709 * our top-level device.
2711 vd = vdev_walk_tree(tvd, NULL, NULL);
2712 ASSERT3P(vd, !=, NULL);
2713 ASSERT(vd->vdev_ops->vdev_op_leaf);
2715 psize = vd->vdev_psize;
2718 * We only try to expand the vdev if it's healthy, less than 4x its
2719 * original size, and it has a valid psize.
2721 if (tvd->vdev_state != VDEV_STATE_HEALTHY ||
2722 psize == 0 || psize >= 4 * zopt_vdev_size) {
2723 spa_config_exit(spa, SCL_STATE, spa);
2724 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2728 newsize = psize + psize / 8;
2729 ASSERT3U(newsize, >, psize);
2731 if (zopt_verbose >= 6) {
2732 (void) printf("Expanding LUN %s from %lu to %lu\n",
2733 vd->vdev_path, (ulong_t)psize, (ulong_t)newsize);
2737 * Growing the vdev is a two step process:
2738 * 1). expand the physical size (i.e. relabel)
2739 * 2). online the vdev to create the new metaslabs
2741 if (vdev_walk_tree(tvd, grow_vdev, &newsize) != NULL ||
2742 vdev_walk_tree(tvd, online_vdev, NULL) != NULL ||
2743 tvd->vdev_state != VDEV_STATE_HEALTHY) {
2744 if (zopt_verbose >= 5) {
2745 (void) printf("Could not expand LUN because "
2746 "the vdev configuration changed.\n");
2748 spa_config_exit(spa, SCL_STATE, spa);
2749 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2753 spa_config_exit(spa, SCL_STATE, spa);
2756 * Expanding the LUN will update the config asynchronously,
2757 * thus we must wait for the async thread to complete any
2758 * pending tasks before proceeding.
2762 mutex_enter(&spa->spa_async_lock);
2763 done = (spa->spa_async_thread == NULL && !spa->spa_async_tasks);
2764 mutex_exit(&spa->spa_async_lock);
2767 txg_wait_synced(spa_get_dsl(spa), 0);
2768 (void) poll(NULL, 0, 100);
2771 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
2773 tvd = spa->spa_root_vdev->vdev_child[top];
2774 new_ms_count = tvd->vdev_ms_count;
2775 new_class_space = metaslab_class_get_space(mc);
2777 if (tvd->vdev_mg != mg || mg->mg_class != mc) {
2778 if (zopt_verbose >= 5) {
2779 (void) printf("Could not verify LUN expansion due to "
2780 "intervening vdev offline or remove.\n");
2782 spa_config_exit(spa, SCL_STATE, spa);
2783 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2788 * Make sure we were able to grow the vdev.
2790 if (new_ms_count <= old_ms_count)
2791 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
2792 old_ms_count, new_ms_count);
2795 * Make sure we were able to grow the pool.
2797 if (new_class_space <= old_class_space)
2798 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
2799 old_class_space, new_class_space);
2801 if (zopt_verbose >= 5) {
2802 char oldnumbuf[6], newnumbuf[6];
2804 nicenum(old_class_space, oldnumbuf);
2805 nicenum(new_class_space, newnumbuf);
2806 (void) printf("%s grew from %s to %s\n",
2807 spa->spa_name, oldnumbuf, newnumbuf);
2810 spa_config_exit(spa, SCL_STATE, spa);
2811 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
2815 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
2819 ztest_objset_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
2822 * Create the objects common to all ztest datasets.
2824 VERIFY(zap_create_claim(os, ZTEST_DIROBJ,
2825 DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0);
2829 ztest_dataset_create(char *dsname)
2831 uint64_t zilset = ztest_random(100);
2832 int err = dmu_objset_create(dsname, DMU_OST_OTHER, 0,
2833 ztest_objset_create_cb, NULL);
2835 if (err || zilset < 80)
2838 (void) printf("Setting dataset %s to sync always\n", dsname);
2839 return (ztest_dsl_prop_set_uint64(dsname, ZFS_PROP_SYNC,
2840 ZFS_SYNC_ALWAYS, B_FALSE));
2845 ztest_objset_destroy_cb(const char *name, void *arg)
2848 dmu_object_info_t doi;
2852 * Verify that the dataset contains a directory object.
2854 VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os));
2855 error = dmu_object_info(os, ZTEST_DIROBJ, &doi);
2856 if (error != ENOENT) {
2857 /* We could have crashed in the middle of destroying it */
2858 ASSERT3U(error, ==, 0);
2859 ASSERT3U(doi.doi_type, ==, DMU_OT_ZAP_OTHER);
2860 ASSERT3S(doi.doi_physical_blocks_512, >=, 0);
2862 dmu_objset_rele(os, FTAG);
2865 * Destroy the dataset.
2867 VERIFY3U(0, ==, dmu_objset_destroy(name, B_FALSE));
2872 ztest_snapshot_create(char *osname, uint64_t id)
2874 char snapname[MAXNAMELEN];
2877 (void) snprintf(snapname, MAXNAMELEN, "%s@%llu", osname,
2880 error = dmu_objset_snapshot(osname, strchr(snapname, '@') + 1,
2881 NULL, NULL, B_FALSE, B_FALSE, -1);
2882 if (error == ENOSPC) {
2883 ztest_record_enospc(FTAG);
2886 if (error != 0 && error != EEXIST)
2887 fatal(0, "ztest_snapshot_create(%s) = %d", snapname, error);
2892 ztest_snapshot_destroy(char *osname, uint64_t id)
2894 char snapname[MAXNAMELEN];
2897 (void) snprintf(snapname, MAXNAMELEN, "%s@%llu", osname,
2900 error = dmu_objset_destroy(snapname, B_FALSE);
2901 if (error != 0 && error != ENOENT)
2902 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname, error);
2908 ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
2910 ztest_shared_t *zs = ztest_shared;
2915 char name[MAXNAMELEN];
2918 (void) rw_rdlock(&zs->zs_name_lock);
2920 (void) snprintf(name, MAXNAMELEN, "%s/temp_%llu",
2921 zs->zs_pool, (u_longlong_t)id);
2924 * If this dataset exists from a previous run, process its replay log
2925 * half of the time. If we don't replay it, then dmu_objset_destroy()
2926 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
2928 if (ztest_random(2) == 0 &&
2929 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os) == 0) {
2930 ztest_zd_init(&zdtmp, os);
2931 zil_replay(os, &zdtmp, ztest_replay_vector);
2932 ztest_zd_fini(&zdtmp);
2933 dmu_objset_disown(os, FTAG);
2937 * There may be an old instance of the dataset we're about to
2938 * create lying around from a previous run. If so, destroy it
2939 * and all of its snapshots.
2941 (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
2942 DS_FIND_CHILDREN | DS_FIND_SNAPSHOTS);
2945 * Verify that the destroyed dataset is no longer in the namespace.
2947 VERIFY3U(ENOENT, ==, dmu_objset_hold(name, FTAG, &os));
2950 * Verify that we can create a new dataset.
2952 error = ztest_dataset_create(name);
2954 if (error == ENOSPC) {
2955 ztest_record_enospc(FTAG);
2956 (void) rw_unlock(&zs->zs_name_lock);
2959 fatal(0, "dmu_objset_create(%s) = %d", name, error);
2963 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os));
2965 ztest_zd_init(&zdtmp, os);
2968 * Open the intent log for it.
2970 zilog = zil_open(os, ztest_get_data);
2973 * Put some objects in there, do a little I/O to them,
2974 * and randomly take a couple of snapshots along the way.
2976 iters = ztest_random(5);
2977 for (int i = 0; i < iters; i++) {
2978 ztest_dmu_object_alloc_free(&zdtmp, id);
2979 if (ztest_random(iters) == 0)
2980 (void) ztest_snapshot_create(name, i);
2984 * Verify that we cannot create an existing dataset.
2986 VERIFY3U(EEXIST, ==,
2987 dmu_objset_create(name, DMU_OST_OTHER, 0, NULL, NULL));
2990 * Verify that we can hold an objset that is also owned.
2992 VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os2));
2993 dmu_objset_rele(os2, FTAG);
2996 * Verify that we cannot own an objset that is already owned.
2999 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os2));
3002 dmu_objset_disown(os, FTAG);
3003 ztest_zd_fini(&zdtmp);
3005 (void) rw_unlock(&zs->zs_name_lock);
3009 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3012 ztest_dmu_snapshot_create_destroy(ztest_ds_t *zd, uint64_t id)
3014 ztest_shared_t *zs = ztest_shared;
3016 (void) rw_rdlock(&zs->zs_name_lock);
3017 (void) ztest_snapshot_destroy(zd->zd_name, id);
3018 (void) ztest_snapshot_create(zd->zd_name, id);
3019 (void) rw_unlock(&zs->zs_name_lock);
3023 * Cleanup non-standard snapshots and clones.
3026 ztest_dsl_dataset_cleanup(char *osname, uint64_t id)
3028 char snap1name[MAXNAMELEN];
3029 char clone1name[MAXNAMELEN];
3030 char snap2name[MAXNAMELEN];
3031 char clone2name[MAXNAMELEN];
3032 char snap3name[MAXNAMELEN];
3035 (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id);
3036 (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id);
3037 (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id);
3038 (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id);
3039 (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id);
3041 error = dmu_objset_destroy(clone2name, B_FALSE);
3042 if (error && error != ENOENT)
3043 fatal(0, "dmu_objset_destroy(%s) = %d", clone2name, error);
3044 error = dmu_objset_destroy(snap3name, B_FALSE);
3045 if (error && error != ENOENT)
3046 fatal(0, "dmu_objset_destroy(%s) = %d", snap3name, error);
3047 error = dmu_objset_destroy(snap2name, B_FALSE);
3048 if (error && error != ENOENT)
3049 fatal(0, "dmu_objset_destroy(%s) = %d", snap2name, error);
3050 error = dmu_objset_destroy(clone1name, B_FALSE);
3051 if (error && error != ENOENT)
3052 fatal(0, "dmu_objset_destroy(%s) = %d", clone1name, error);
3053 error = dmu_objset_destroy(snap1name, B_FALSE);
3054 if (error && error != ENOENT)
3055 fatal(0, "dmu_objset_destroy(%s) = %d", snap1name, error);
3059 * Verify dsl_dataset_promote handles EBUSY
3062 ztest_dsl_dataset_promote_busy(ztest_ds_t *zd, uint64_t id)
3064 ztest_shared_t *zs = ztest_shared;
3067 char snap1name[MAXNAMELEN];
3068 char clone1name[MAXNAMELEN];
3069 char snap2name[MAXNAMELEN];
3070 char clone2name[MAXNAMELEN];
3071 char snap3name[MAXNAMELEN];
3072 char *osname = zd->zd_name;
3075 (void) rw_rdlock(&zs->zs_name_lock);
3077 ztest_dsl_dataset_cleanup(osname, id);
3079 (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id);
3080 (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id);
3081 (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id);
3082 (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id);
3083 (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id);
3085 error = dmu_objset_snapshot(osname, strchr(snap1name, '@')+1,
3086 NULL, NULL, B_FALSE, B_FALSE, -1);
3087 if (error && error != EEXIST) {
3088 if (error == ENOSPC) {
3089 ztest_record_enospc(FTAG);
3092 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name, error);
3095 error = dmu_objset_hold(snap1name, FTAG, &clone);
3097 fatal(0, "dmu_open_snapshot(%s) = %d", snap1name, error);
3099 error = dmu_objset_clone(clone1name, dmu_objset_ds(clone), 0);
3100 dmu_objset_rele(clone, FTAG);
3102 if (error == ENOSPC) {
3103 ztest_record_enospc(FTAG);
3106 fatal(0, "dmu_objset_create(%s) = %d", clone1name, error);
3109 error = dmu_objset_snapshot(clone1name, strchr(snap2name, '@')+1,
3110 NULL, NULL, B_FALSE, B_FALSE, -1);
3111 if (error && error != EEXIST) {
3112 if (error == ENOSPC) {
3113 ztest_record_enospc(FTAG);
3116 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name, error);
3119 error = dmu_objset_snapshot(clone1name, strchr(snap3name, '@')+1,
3120 NULL, NULL, B_FALSE, B_FALSE, -1);
3121 if (error && error != EEXIST) {
3122 if (error == ENOSPC) {
3123 ztest_record_enospc(FTAG);
3126 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error);
3129 error = dmu_objset_hold(snap3name, FTAG, &clone);
3131 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error);
3133 error = dmu_objset_clone(clone2name, dmu_objset_ds(clone), 0);
3134 dmu_objset_rele(clone, FTAG);
3136 if (error == ENOSPC) {
3137 ztest_record_enospc(FTAG);
3140 fatal(0, "dmu_objset_create(%s) = %d", clone2name, error);
3143 error = dsl_dataset_own(snap2name, B_FALSE, FTAG, &ds);
3145 fatal(0, "dsl_dataset_own(%s) = %d", snap2name, error);
3146 error = dsl_dataset_promote(clone2name, NULL);
3148 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name,
3150 dsl_dataset_disown(ds, FTAG);
3153 ztest_dsl_dataset_cleanup(osname, id);
3155 (void) rw_unlock(&zs->zs_name_lock);
3159 * Verify that dmu_object_{alloc,free} work as expected.
3162 ztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t id)
3165 int batchsize = sizeof (od) / sizeof (od[0]);
3167 for (int b = 0; b < batchsize; b++)
3168 ztest_od_init(&od[b], id, FTAG, b, DMU_OT_UINT64_OTHER, 0, 0);
3171 * Destroy the previous batch of objects, create a new batch,
3172 * and do some I/O on the new objects.
3174 if (ztest_object_init(zd, od, sizeof (od), B_TRUE) != 0)
3177 while (ztest_random(4 * batchsize) != 0)
3178 ztest_io(zd, od[ztest_random(batchsize)].od_object,
3179 ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
3183 * Verify that dmu_{read,write} work as expected.
3186 ztest_dmu_read_write(ztest_ds_t *zd, uint64_t id)
3188 objset_t *os = zd->zd_os;
3191 int i, freeit, error;
3193 bufwad_t *packbuf, *bigbuf, *pack, *bigH, *bigT;
3194 uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
3195 uint64_t chunksize = (1000 + ztest_random(1000)) * sizeof (uint64_t);
3196 uint64_t regions = 997;
3197 uint64_t stride = 123456789ULL;
3198 uint64_t width = 40;
3199 int free_percent = 5;
3202 * This test uses two objects, packobj and bigobj, that are always
3203 * updated together (i.e. in the same tx) so that their contents are
3204 * in sync and can be compared. Their contents relate to each other
3205 * in a simple way: packobj is a dense array of 'bufwad' structures,
3206 * while bigobj is a sparse array of the same bufwads. Specifically,
3207 * for any index n, there are three bufwads that should be identical:
3209 * packobj, at offset n * sizeof (bufwad_t)
3210 * bigobj, at the head of the nth chunk
3211 * bigobj, at the tail of the nth chunk
3213 * The chunk size is arbitrary. It doesn't have to be a power of two,
3214 * and it doesn't have any relation to the object blocksize.
3215 * The only requirement is that it can hold at least two bufwads.
3217 * Normally, we write the bufwad to each of these locations.
3218 * However, free_percent of the time we instead write zeroes to
3219 * packobj and perform a dmu_free_range() on bigobj. By comparing
3220 * bigobj to packobj, we can verify that the DMU is correctly
3221 * tracking which parts of an object are allocated and free,
3222 * and that the contents of the allocated blocks are correct.
3226 * Read the directory info. If it's the first time, set things up.
3228 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, chunksize);
3229 ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize);
3231 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3234 bigobj = od[0].od_object;
3235 packobj = od[1].od_object;
3236 chunksize = od[0].od_gen;
3237 ASSERT(chunksize == od[1].od_gen);
3240 * Prefetch a random chunk of the big object.
3241 * Our aim here is to get some async reads in flight
3242 * for blocks that we may free below; the DMU should
3243 * handle this race correctly.
3245 n = ztest_random(regions) * stride + ztest_random(width);
3246 s = 1 + ztest_random(2 * width - 1);
3247 dmu_prefetch(os, bigobj, n * chunksize, s * chunksize);
3250 * Pick a random index and compute the offsets into packobj and bigobj.
3252 n = ztest_random(regions) * stride + ztest_random(width);
3253 s = 1 + ztest_random(width - 1);
3255 packoff = n * sizeof (bufwad_t);
3256 packsize = s * sizeof (bufwad_t);
3258 bigoff = n * chunksize;
3259 bigsize = s * chunksize;
3261 packbuf = umem_alloc(packsize, UMEM_NOFAIL);
3262 bigbuf = umem_alloc(bigsize, UMEM_NOFAIL);
3265 * free_percent of the time, free a range of bigobj rather than
3268 freeit = (ztest_random(100) < free_percent);
3271 * Read the current contents of our objects.
3273 error = dmu_read(os, packobj, packoff, packsize, packbuf,
3275 ASSERT3U(error, ==, 0);
3276 error = dmu_read(os, bigobj, bigoff, bigsize, bigbuf,
3278 ASSERT3U(error, ==, 0);
3281 * Get a tx for the mods to both packobj and bigobj.
3283 tx = dmu_tx_create(os);
3285 dmu_tx_hold_write(tx, packobj, packoff, packsize);
3288 dmu_tx_hold_free(tx, bigobj, bigoff, bigsize);
3290 dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
3292 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3294 umem_free(packbuf, packsize);
3295 umem_free(bigbuf, bigsize);
3299 dmu_object_set_checksum(os, bigobj,
3300 (enum zio_checksum)ztest_random_dsl_prop(ZFS_PROP_CHECKSUM), tx);
3302 dmu_object_set_compress(os, bigobj,
3303 (enum zio_compress)ztest_random_dsl_prop(ZFS_PROP_COMPRESSION), tx);
3306 * For each index from n to n + s, verify that the existing bufwad
3307 * in packobj matches the bufwads at the head and tail of the
3308 * corresponding chunk in bigobj. Then update all three bufwads
3309 * with the new values we want to write out.
3311 for (i = 0; i < s; i++) {
3313 pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
3315 bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
3317 bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
3319 ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
3320 ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
3322 if (pack->bw_txg > txg)
3323 fatal(0, "future leak: got %llx, open txg is %llx",
3326 if (pack->bw_data != 0 && pack->bw_index != n + i)
3327 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3328 pack->bw_index, n, i);
3330 if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0)
3331 fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH);
3333 if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0)
3334 fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT);
3337 bzero(pack, sizeof (bufwad_t));
3339 pack->bw_index = n + i;
3341 pack->bw_data = 1 + ztest_random(-2ULL);
3348 * We've verified all the old bufwads, and made new ones.
3349 * Now write them out.
3351 dmu_write(os, packobj, packoff, packsize, packbuf, tx);
3354 if (zopt_verbose >= 7) {
3355 (void) printf("freeing offset %llx size %llx"
3357 (u_longlong_t)bigoff,
3358 (u_longlong_t)bigsize,
3361 VERIFY(0 == dmu_free_range(os, bigobj, bigoff, bigsize, tx));
3363 if (zopt_verbose >= 7) {
3364 (void) printf("writing offset %llx size %llx"
3366 (u_longlong_t)bigoff,
3367 (u_longlong_t)bigsize,
3370 dmu_write(os, bigobj, bigoff, bigsize, bigbuf, tx);
3376 * Sanity check the stuff we just wrote.
3379 void *packcheck = umem_alloc(packsize, UMEM_NOFAIL);
3380 void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL);
3382 VERIFY(0 == dmu_read(os, packobj, packoff,
3383 packsize, packcheck, DMU_READ_PREFETCH));
3384 VERIFY(0 == dmu_read(os, bigobj, bigoff,
3385 bigsize, bigcheck, DMU_READ_PREFETCH));
3387 ASSERT(bcmp(packbuf, packcheck, packsize) == 0);
3388 ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0);
3390 umem_free(packcheck, packsize);
3391 umem_free(bigcheck, bigsize);
3394 umem_free(packbuf, packsize);
3395 umem_free(bigbuf, bigsize);
3399 compare_and_update_pbbufs(uint64_t s, bufwad_t *packbuf, bufwad_t *bigbuf,
3400 uint64_t bigsize, uint64_t n, uint64_t chunksize, uint64_t txg)
3408 * For each index from n to n + s, verify that the existing bufwad
3409 * in packobj matches the bufwads at the head and tail of the
3410 * corresponding chunk in bigobj. Then update all three bufwads
3411 * with the new values we want to write out.
3413 for (i = 0; i < s; i++) {
3415 pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
3417 bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
3419 bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
3421 ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
3422 ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
3424 if (pack->bw_txg > txg)
3425 fatal(0, "future leak: got %llx, open txg is %llx",
3428 if (pack->bw_data != 0 && pack->bw_index != n + i)
3429 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3430 pack->bw_index, n, i);
3432 if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0)
3433 fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH);
3435 if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0)
3436 fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT);
3438 pack->bw_index = n + i;
3440 pack->bw_data = 1 + ztest_random(-2ULL);
3448 ztest_dmu_read_write_zcopy(ztest_ds_t *zd, uint64_t id)
3450 objset_t *os = zd->zd_os;
3456 bufwad_t *packbuf, *bigbuf;
3457 uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
3458 uint64_t blocksize = ztest_random_blocksize();
3459 uint64_t chunksize = blocksize;
3460 uint64_t regions = 997;
3461 uint64_t stride = 123456789ULL;
3463 dmu_buf_t *bonus_db;
3464 arc_buf_t **bigbuf_arcbufs;
3465 dmu_object_info_t doi;
3468 * This test uses two objects, packobj and bigobj, that are always
3469 * updated together (i.e. in the same tx) so that their contents are
3470 * in sync and can be compared. Their contents relate to each other
3471 * in a simple way: packobj is a dense array of 'bufwad' structures,
3472 * while bigobj is a sparse array of the same bufwads. Specifically,
3473 * for any index n, there are three bufwads that should be identical:
3475 * packobj, at offset n * sizeof (bufwad_t)
3476 * bigobj, at the head of the nth chunk
3477 * bigobj, at the tail of the nth chunk
3479 * The chunk size is set equal to bigobj block size so that
3480 * dmu_assign_arcbuf() can be tested for object updates.
3484 * Read the directory info. If it's the first time, set things up.
3486 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
3487 ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize);
3489 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3492 bigobj = od[0].od_object;
3493 packobj = od[1].od_object;
3494 blocksize = od[0].od_blocksize;
3495 chunksize = blocksize;
3496 ASSERT(chunksize == od[1].od_gen);
3498 VERIFY(dmu_object_info(os, bigobj, &doi) == 0);
3499 VERIFY(ISP2(doi.doi_data_block_size));
3500 VERIFY(chunksize == doi.doi_data_block_size);
3501 VERIFY(chunksize >= 2 * sizeof (bufwad_t));
3504 * Pick a random index and compute the offsets into packobj and bigobj.
3506 n = ztest_random(regions) * stride + ztest_random(width);
3507 s = 1 + ztest_random(width - 1);
3509 packoff = n * sizeof (bufwad_t);
3510 packsize = s * sizeof (bufwad_t);
3512 bigoff = n * chunksize;
3513 bigsize = s * chunksize;
3515 packbuf = umem_zalloc(packsize, UMEM_NOFAIL);
3516 bigbuf = umem_zalloc(bigsize, UMEM_NOFAIL);
3518 VERIFY3U(0, ==, dmu_bonus_hold(os, bigobj, FTAG, &bonus_db));
3520 bigbuf_arcbufs = umem_zalloc(2 * s * sizeof (arc_buf_t *), UMEM_NOFAIL);
3523 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
3524 * Iteration 1 test zcopy to already referenced dbufs.
3525 * Iteration 2 test zcopy to dirty dbuf in the same txg.
3526 * Iteration 3 test zcopy to dbuf dirty in previous txg.
3527 * Iteration 4 test zcopy when dbuf is no longer dirty.
3528 * Iteration 5 test zcopy when it can't be done.
3529 * Iteration 6 one more zcopy write.
3531 for (i = 0; i < 7; i++) {
3536 * In iteration 5 (i == 5) use arcbufs
3537 * that don't match bigobj blksz to test
3538 * dmu_assign_arcbuf() when it can't directly
3539 * assign an arcbuf to a dbuf.
3541 for (j = 0; j < s; j++) {
3544 dmu_request_arcbuf(bonus_db, chunksize);
3546 bigbuf_arcbufs[2 * j] =
3547 dmu_request_arcbuf(bonus_db, chunksize / 2);
3548 bigbuf_arcbufs[2 * j + 1] =
3549 dmu_request_arcbuf(bonus_db, chunksize / 2);
3554 * Get a tx for the mods to both packobj and bigobj.
3556 tx = dmu_tx_create(os);
3558 dmu_tx_hold_write(tx, packobj, packoff, packsize);
3559 dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
3561 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3563 umem_free(packbuf, packsize);
3564 umem_free(bigbuf, bigsize);
3565 for (j = 0; j < s; j++) {
3567 dmu_return_arcbuf(bigbuf_arcbufs[j]);
3570 bigbuf_arcbufs[2 * j]);
3572 bigbuf_arcbufs[2 * j + 1]);
3575 umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
3576 dmu_buf_rele(bonus_db, FTAG);
3581 * 50% of the time don't read objects in the 1st iteration to
3582 * test dmu_assign_arcbuf() for the case when there're no
3583 * existing dbufs for the specified offsets.
3585 if (i != 0 || ztest_random(2) != 0) {
3586 error = dmu_read(os, packobj, packoff,
3587 packsize, packbuf, DMU_READ_PREFETCH);
3588 ASSERT3U(error, ==, 0);
3589 error = dmu_read(os, bigobj, bigoff, bigsize,
3590 bigbuf, DMU_READ_PREFETCH);
3591 ASSERT3U(error, ==, 0);
3593 compare_and_update_pbbufs(s, packbuf, bigbuf, bigsize,
3597 * We've verified all the old bufwads, and made new ones.
3598 * Now write them out.
3600 dmu_write(os, packobj, packoff, packsize, packbuf, tx);
3601 if (zopt_verbose >= 7) {
3602 (void) printf("writing offset %llx size %llx"
3604 (u_longlong_t)bigoff,
3605 (u_longlong_t)bigsize,
3608 for (off = bigoff, j = 0; j < s; j++, off += chunksize) {
3611 bcopy((caddr_t)bigbuf + (off - bigoff),
3612 bigbuf_arcbufs[j]->b_data, chunksize);
3614 bcopy((caddr_t)bigbuf + (off - bigoff),
3615 bigbuf_arcbufs[2 * j]->b_data,
3617 bcopy((caddr_t)bigbuf + (off - bigoff) +
3619 bigbuf_arcbufs[2 * j + 1]->b_data,
3624 VERIFY(dmu_buf_hold(os, bigobj, off,
3625 FTAG, &dbt, DMU_READ_NO_PREFETCH) == 0);
3628 dmu_assign_arcbuf(bonus_db, off,
3629 bigbuf_arcbufs[j], tx);
3631 dmu_assign_arcbuf(bonus_db, off,
3632 bigbuf_arcbufs[2 * j], tx);
3633 dmu_assign_arcbuf(bonus_db,
3634 off + chunksize / 2,
3635 bigbuf_arcbufs[2 * j + 1], tx);
3638 dmu_buf_rele(dbt, FTAG);
3644 * Sanity check the stuff we just wrote.
3647 void *packcheck = umem_alloc(packsize, UMEM_NOFAIL);
3648 void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL);
3650 VERIFY(0 == dmu_read(os, packobj, packoff,
3651 packsize, packcheck, DMU_READ_PREFETCH));
3652 VERIFY(0 == dmu_read(os, bigobj, bigoff,
3653 bigsize, bigcheck, DMU_READ_PREFETCH));
3655 ASSERT(bcmp(packbuf, packcheck, packsize) == 0);
3656 ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0);
3658 umem_free(packcheck, packsize);
3659 umem_free(bigcheck, bigsize);
3662 txg_wait_open(dmu_objset_pool(os), 0);
3663 } else if (i == 3) {
3664 txg_wait_synced(dmu_objset_pool(os), 0);
3668 dmu_buf_rele(bonus_db, FTAG);
3669 umem_free(packbuf, packsize);
3670 umem_free(bigbuf, bigsize);
3671 umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
3676 ztest_dmu_write_parallel(ztest_ds_t *zd, uint64_t id)
3679 uint64_t offset = (1ULL << (ztest_random(20) + 43)) +
3680 (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
3683 * Have multiple threads write to large offsets in an object
3684 * to verify that parallel writes to an object -- even to the
3685 * same blocks within the object -- doesn't cause any trouble.
3687 ztest_od_init(&od[0], ID_PARALLEL, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
3689 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3692 while (ztest_random(10) != 0)
3693 ztest_io(zd, od[0].od_object, offset);
3697 ztest_dmu_prealloc(ztest_ds_t *zd, uint64_t id)
3700 uint64_t offset = (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT)) +
3701 (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
3702 uint64_t count = ztest_random(20) + 1;
3703 uint64_t blocksize = ztest_random_blocksize();
3706 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
3708 if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
3711 if (ztest_truncate(zd, od[0].od_object, offset, count * blocksize) != 0)
3714 ztest_prealloc(zd, od[0].od_object, offset, count * blocksize);
3716 data = umem_zalloc(blocksize, UMEM_NOFAIL);
3718 while (ztest_random(count) != 0) {
3719 uint64_t randoff = offset + (ztest_random(count) * blocksize);
3720 if (ztest_write(zd, od[0].od_object, randoff, blocksize,
3723 while (ztest_random(4) != 0)
3724 ztest_io(zd, od[0].od_object, randoff);
3727 umem_free(data, blocksize);
3731 * Verify that zap_{create,destroy,add,remove,update} work as expected.
3733 #define ZTEST_ZAP_MIN_INTS 1
3734 #define ZTEST_ZAP_MAX_INTS 4
3735 #define ZTEST_ZAP_MAX_PROPS 1000
3738 ztest_zap(ztest_ds_t *zd, uint64_t id)
3740 objset_t *os = zd->zd_os;
3743 uint64_t txg, last_txg;
3744 uint64_t value[ZTEST_ZAP_MAX_INTS];
3745 uint64_t zl_ints, zl_intsize, prop;
3748 char propname[100], txgname[100];
3750 char *hc[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
3752 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
3754 if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
3757 object = od[0].od_object;
3760 * Generate a known hash collision, and verify that
3761 * we can lookup and remove both entries.
3763 tx = dmu_tx_create(os);
3764 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
3765 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3768 for (i = 0; i < 2; i++) {
3770 VERIFY3U(0, ==, zap_add(os, object, hc[i], sizeof (uint64_t),
3773 for (i = 0; i < 2; i++) {
3774 VERIFY3U(EEXIST, ==, zap_add(os, object, hc[i],
3775 sizeof (uint64_t), 1, &value[i], tx));
3777 zap_length(os, object, hc[i], &zl_intsize, &zl_ints));
3778 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
3779 ASSERT3U(zl_ints, ==, 1);
3781 for (i = 0; i < 2; i++) {
3782 VERIFY3U(0, ==, zap_remove(os, object, hc[i], tx));
3787 * Generate a buch of random entries.
3789 ints = MAX(ZTEST_ZAP_MIN_INTS, object % ZTEST_ZAP_MAX_INTS);
3791 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
3792 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
3793 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
3794 bzero(value, sizeof (value));
3798 * If these zap entries already exist, validate their contents.
3800 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
3802 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
3803 ASSERT3U(zl_ints, ==, 1);
3805 VERIFY(zap_lookup(os, object, txgname, zl_intsize,
3806 zl_ints, &last_txg) == 0);
3808 VERIFY(zap_length(os, object, propname, &zl_intsize,
3811 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
3812 ASSERT3U(zl_ints, ==, ints);
3814 VERIFY(zap_lookup(os, object, propname, zl_intsize,
3815 zl_ints, value) == 0);
3817 for (i = 0; i < ints; i++) {
3818 ASSERT3U(value[i], ==, last_txg + object + i);
3821 ASSERT3U(error, ==, ENOENT);
3825 * Atomically update two entries in our zap object.
3826 * The first is named txg_%llu, and contains the txg
3827 * in which the property was last updated. The second
3828 * is named prop_%llu, and the nth element of its value
3829 * should be txg + object + n.
3831 tx = dmu_tx_create(os);
3832 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
3833 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3838 fatal(0, "zap future leak: old %llu new %llu", last_txg, txg);
3840 for (i = 0; i < ints; i++)
3841 value[i] = txg + object + i;
3843 VERIFY3U(0, ==, zap_update(os, object, txgname, sizeof (uint64_t),
3845 VERIFY3U(0, ==, zap_update(os, object, propname, sizeof (uint64_t),
3851 * Remove a random pair of entries.
3853 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
3854 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
3855 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
3857 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
3859 if (error == ENOENT)
3862 ASSERT3U(error, ==, 0);
3864 tx = dmu_tx_create(os);
3865 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
3866 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3869 VERIFY3U(0, ==, zap_remove(os, object, txgname, tx));
3870 VERIFY3U(0, ==, zap_remove(os, object, propname, tx));
3875 * Testcase to test the upgrading of a microzap to fatzap.
3878 ztest_fzap(ztest_ds_t *zd, uint64_t id)
3880 objset_t *os = zd->zd_os;
3882 uint64_t object, txg;
3884 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
3886 if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
3889 object = od[0].od_object;
3892 * Add entries to this ZAP and make sure it spills over
3893 * and gets upgraded to a fatzap. Also, since we are adding
3894 * 2050 entries we should see ptrtbl growth and leaf-block split.
3896 for (int i = 0; i < 2050; i++) {
3897 char name[MAXNAMELEN];
3902 (void) snprintf(name, sizeof (name), "fzap-%llu-%llu",
3905 tx = dmu_tx_create(os);
3906 dmu_tx_hold_zap(tx, object, B_TRUE, name);
3907 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3910 error = zap_add(os, object, name, sizeof (uint64_t), 1,
3912 ASSERT(error == 0 || error == EEXIST);
3919 ztest_zap_parallel(ztest_ds_t *zd, uint64_t id)
3921 objset_t *os = zd->zd_os;
3923 uint64_t txg, object, count, wsize, wc, zl_wsize, zl_wc;
3925 int i, namelen, error;
3926 int micro = ztest_random(2);
3927 char name[20], string_value[20];
3930 ztest_od_init(&od[0], ID_PARALLEL, FTAG, micro, DMU_OT_ZAP_OTHER, 0, 0);
3932 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3935 object = od[0].od_object;
3938 * Generate a random name of the form 'xxx.....' where each
3939 * x is a random printable character and the dots are dots.
3940 * There are 94 such characters, and the name length goes from
3941 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
3943 namelen = ztest_random(sizeof (name) - 5) + 5 + 1;
3945 for (i = 0; i < 3; i++)
3946 name[i] = '!' + ztest_random('~' - '!' + 1);
3947 for (; i < namelen - 1; i++)
3951 if ((namelen & 1) || micro) {
3952 wsize = sizeof (txg);
3958 data = string_value;
3962 VERIFY(zap_count(os, object, &count) == 0);
3963 ASSERT(count != -1ULL);
3966 * Select an operation: length, lookup, add, update, remove.
3968 i = ztest_random(5);
3971 tx = dmu_tx_create(os);
3972 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
3973 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3976 bcopy(name, string_value, namelen);
3980 bzero(string_value, namelen);
3986 error = zap_length(os, object, name, &zl_wsize, &zl_wc);
3988 ASSERT3U(wsize, ==, zl_wsize);
3989 ASSERT3U(wc, ==, zl_wc);
3991 ASSERT3U(error, ==, ENOENT);
3996 error = zap_lookup(os, object, name, wsize, wc, data);
3998 if (data == string_value &&
3999 bcmp(name, data, namelen) != 0)
4000 fatal(0, "name '%s' != val '%s' len %d",
4001 name, data, namelen);
4003 ASSERT3U(error, ==, ENOENT);
4008 error = zap_add(os, object, name, wsize, wc, data, tx);
4009 ASSERT(error == 0 || error == EEXIST);
4013 VERIFY(zap_update(os, object, name, wsize, wc, data, tx) == 0);
4017 error = zap_remove(os, object, name, tx);
4018 ASSERT(error == 0 || error == ENOENT);
4027 * Commit callback data.
4029 typedef struct ztest_cb_data {
4030 list_node_t zcd_node;
4032 int zcd_expected_err;
4033 boolean_t zcd_added;
4034 boolean_t zcd_called;
4038 /* This is the actual commit callback function */
4040 ztest_commit_callback(void *arg, int error)
4042 ztest_cb_data_t *data = arg;
4043 uint64_t synced_txg;
4045 VERIFY(data != NULL);
4046 VERIFY3S(data->zcd_expected_err, ==, error);
4047 VERIFY(!data->zcd_called);
4049 synced_txg = spa_last_synced_txg(data->zcd_spa);
4050 if (data->zcd_txg > synced_txg)
4051 fatal(0, "commit callback of txg %" PRIu64 " called prematurely"
4052 ", last synced txg = %" PRIu64 "\n", data->zcd_txg,
4055 data->zcd_called = B_TRUE;
4057 if (error == ECANCELED) {
4058 ASSERT3U(data->zcd_txg, ==, 0);
4059 ASSERT(!data->zcd_added);
4062 * The private callback data should be destroyed here, but
4063 * since we are going to check the zcd_called field after
4064 * dmu_tx_abort(), we will destroy it there.
4069 /* Was this callback added to the global callback list? */
4070 if (!data->zcd_added)
4073 ASSERT3U(data->zcd_txg, !=, 0);
4075 /* Remove our callback from the list */
4076 (void) mutex_lock(&zcl.zcl_callbacks_lock);
4077 list_remove(&zcl.zcl_callbacks, data);
4078 (void) mutex_unlock(&zcl.zcl_callbacks_lock);
4081 umem_free(data, sizeof (ztest_cb_data_t));
4084 /* Allocate and initialize callback data structure */
4085 static ztest_cb_data_t *
4086 ztest_create_cb_data(objset_t *os, uint64_t txg)
4088 ztest_cb_data_t *cb_data;
4090 cb_data = umem_zalloc(sizeof (ztest_cb_data_t), UMEM_NOFAIL);
4092 cb_data->zcd_txg = txg;
4093 cb_data->zcd_spa = dmu_objset_spa(os);
4099 * If a number of txgs equal to this threshold have been created after a commit
4100 * callback has been registered but not called, then we assume there is an
4101 * implementation bug.
4103 #define ZTEST_COMMIT_CALLBACK_THRESH (TXG_CONCURRENT_STATES + 2)
4106 * Commit callback test.
4109 ztest_dmu_commit_callbacks(ztest_ds_t *zd, uint64_t id)
4111 objset_t *os = zd->zd_os;
4114 ztest_cb_data_t *cb_data[3], *tmp_cb;
4115 uint64_t old_txg, txg;
4118 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
4120 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
4123 tx = dmu_tx_create(os);
4125 cb_data[0] = ztest_create_cb_data(os, 0);
4126 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[0]);
4128 dmu_tx_hold_write(tx, od[0].od_object, 0, sizeof (uint64_t));
4130 /* Every once in a while, abort the transaction on purpose */
4131 if (ztest_random(100) == 0)
4135 error = dmu_tx_assign(tx, TXG_NOWAIT);
4137 txg = error ? 0 : dmu_tx_get_txg(tx);
4139 cb_data[0]->zcd_txg = txg;
4140 cb_data[1] = ztest_create_cb_data(os, txg);
4141 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[1]);
4145 * It's not a strict requirement to call the registered
4146 * callbacks from inside dmu_tx_abort(), but that's what
4147 * it's supposed to happen in the current implementation
4148 * so we will check for that.
4150 for (i = 0; i < 2; i++) {
4151 cb_data[i]->zcd_expected_err = ECANCELED;
4152 VERIFY(!cb_data[i]->zcd_called);
4157 for (i = 0; i < 2; i++) {
4158 VERIFY(cb_data[i]->zcd_called);
4159 umem_free(cb_data[i], sizeof (ztest_cb_data_t));
4165 cb_data[2] = ztest_create_cb_data(os, txg);
4166 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[2]);
4169 * Read existing data to make sure there isn't a future leak.
4171 VERIFY(0 == dmu_read(os, od[0].od_object, 0, sizeof (uint64_t),
4172 &old_txg, DMU_READ_PREFETCH));
4175 fatal(0, "future leak: got %" PRIu64 ", open txg is %" PRIu64,
4178 dmu_write(os, od[0].od_object, 0, sizeof (uint64_t), &txg, tx);
4180 (void) mutex_lock(&zcl.zcl_callbacks_lock);
4183 * Since commit callbacks don't have any ordering requirement and since
4184 * it is theoretically possible for a commit callback to be called
4185 * after an arbitrary amount of time has elapsed since its txg has been
4186 * synced, it is difficult to reliably determine whether a commit
4187 * callback hasn't been called due to high load or due to a flawed
4190 * In practice, we will assume that if after a certain number of txgs a
4191 * commit callback hasn't been called, then most likely there's an
4192 * implementation bug..
4194 tmp_cb = list_head(&zcl.zcl_callbacks);
4195 if (tmp_cb != NULL &&
4196 tmp_cb->zcd_txg > txg - ZTEST_COMMIT_CALLBACK_THRESH) {
4197 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4198 PRIu64 ", open txg: %" PRIu64 "\n", tmp_cb->zcd_txg, txg);
4202 * Let's find the place to insert our callbacks.
4204 * Even though the list is ordered by txg, it is possible for the
4205 * insertion point to not be the end because our txg may already be
4206 * quiescing at this point and other callbacks in the open txg
4207 * (from other objsets) may have sneaked in.
4209 tmp_cb = list_tail(&zcl.zcl_callbacks);
4210 while (tmp_cb != NULL && tmp_cb->zcd_txg > txg)
4211 tmp_cb = list_prev(&zcl.zcl_callbacks, tmp_cb);
4213 /* Add the 3 callbacks to the list */
4214 for (i = 0; i < 3; i++) {
4216 list_insert_head(&zcl.zcl_callbacks, cb_data[i]);
4218 list_insert_after(&zcl.zcl_callbacks, tmp_cb,
4221 cb_data[i]->zcd_added = B_TRUE;
4222 VERIFY(!cb_data[i]->zcd_called);
4224 tmp_cb = cb_data[i];
4227 (void) mutex_unlock(&zcl.zcl_callbacks_lock);
4234 ztest_dsl_prop_get_set(ztest_ds_t *zd, uint64_t id)
4236 zfs_prop_t proplist[] = {
4238 ZFS_PROP_COMPRESSION,
4242 ztest_shared_t *zs = ztest_shared;
4244 (void) rw_rdlock(&zs->zs_name_lock);
4246 for (int p = 0; p < sizeof (proplist) / sizeof (proplist[0]); p++)
4247 (void) ztest_dsl_prop_set_uint64(zd->zd_name, proplist[p],
4248 ztest_random_dsl_prop(proplist[p]), (int)ztest_random(2));
4250 (void) rw_unlock(&zs->zs_name_lock);
4255 ztest_spa_prop_get_set(ztest_ds_t *zd, uint64_t id)
4257 ztest_shared_t *zs = ztest_shared;
4258 nvlist_t *props = NULL;
4260 (void) rw_rdlock(&zs->zs_name_lock);
4262 (void) ztest_spa_prop_set_uint64(zs, ZPOOL_PROP_DEDUPDITTO,
4263 ZIO_DEDUPDITTO_MIN + ztest_random(ZIO_DEDUPDITTO_MIN));
4265 VERIFY3U(spa_prop_get(zs->zs_spa, &props), ==, 0);
4267 if (zopt_verbose >= 6)
4268 dump_nvlist(props, 4);
4272 (void) rw_unlock(&zs->zs_name_lock);
4276 * Test snapshot hold/release and deferred destroy.
4279 ztest_dmu_snapshot_hold(ztest_ds_t *zd, uint64_t id)
4282 objset_t *os = zd->zd_os;
4286 char clonename[100];
4288 char osname[MAXNAMELEN];
4290 (void) rw_rdlock(&ztest_shared->zs_name_lock);
4292 dmu_objset_name(os, osname);
4294 (void) snprintf(snapname, 100, "sh1_%llu", id);
4295 (void) snprintf(fullname, 100, "%s@%s", osname, snapname);
4296 (void) snprintf(clonename, 100, "%s/ch1_%llu", osname, id);
4297 (void) snprintf(tag, 100, "%tag_%llu", id);
4300 * Clean up from any previous run.
4302 (void) dmu_objset_destroy(clonename, B_FALSE);
4303 (void) dsl_dataset_user_release(osname, snapname, tag, B_FALSE);
4304 (void) dmu_objset_destroy(fullname, B_FALSE);
4307 * Create snapshot, clone it, mark snap for deferred destroy,
4308 * destroy clone, verify snap was also destroyed.
4310 error = dmu_objset_snapshot(osname, snapname, NULL, NULL, FALSE,
4313 if (error == ENOSPC) {
4314 ztest_record_enospc("dmu_objset_snapshot");
4317 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
4320 error = dmu_objset_hold(fullname, FTAG, &origin);
4322 fatal(0, "dmu_objset_hold(%s) = %d", fullname, error);
4324 error = dmu_objset_clone(clonename, dmu_objset_ds(origin), 0);
4325 dmu_objset_rele(origin, FTAG);
4327 if (error == ENOSPC) {
4328 ztest_record_enospc("dmu_objset_clone");
4331 fatal(0, "dmu_objset_clone(%s) = %d", clonename, error);
4334 error = dmu_objset_destroy(fullname, B_TRUE);
4336 fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d",
4340 error = dmu_objset_destroy(clonename, B_FALSE);
4342 fatal(0, "dmu_objset_destroy(%s) = %d", clonename, error);
4344 error = dmu_objset_hold(fullname, FTAG, &origin);
4345 if (error != ENOENT)
4346 fatal(0, "dmu_objset_hold(%s) = %d", fullname, error);
4349 * Create snapshot, add temporary hold, verify that we can't
4350 * destroy a held snapshot, mark for deferred destroy,
4351 * release hold, verify snapshot was destroyed.
4353 error = dmu_objset_snapshot(osname, snapname, NULL, NULL, FALSE,
4356 if (error == ENOSPC) {
4357 ztest_record_enospc("dmu_objset_snapshot");
4360 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
4363 error = dsl_dataset_user_hold(osname, snapname, tag, B_FALSE,
4366 fatal(0, "dsl_dataset_user_hold(%s)", fullname, tag);
4368 error = dmu_objset_destroy(fullname, B_FALSE);
4369 if (error != EBUSY) {
4370 fatal(0, "dmu_objset_destroy(%s, B_FALSE) = %d",
4374 error = dmu_objset_destroy(fullname, B_TRUE);
4376 fatal(0, "dmu_objset_destroy(%s, B_TRUE) = %d",
4380 error = dsl_dataset_user_release(osname, snapname, tag, B_FALSE);
4382 fatal(0, "dsl_dataset_user_release(%s)", fullname, tag);
4384 VERIFY(dmu_objset_hold(fullname, FTAG, &origin) == ENOENT);
4387 (void) rw_unlock(&ztest_shared->zs_name_lock);
4391 * Inject random faults into the on-disk data.
4395 ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
4397 ztest_shared_t *zs = ztest_shared;
4398 spa_t *spa = zs->zs_spa;
4402 uint64_t bad = 0x1990c0ffeedecade;
4404 char path0[MAXPATHLEN];
4405 char pathrand[MAXPATHLEN];
4407 int bshift = SPA_MAXBLOCKSHIFT + 2; /* don't scrog all labels */
4413 boolean_t islog = B_FALSE;
4415 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
4416 maxfaults = MAXFAULTS();
4417 leaves = MAX(zs->zs_mirrors, 1) * zopt_raidz;
4418 mirror_save = zs->zs_mirrors;
4419 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
4421 ASSERT(leaves >= 1);
4424 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4426 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
4428 if (ztest_random(2) == 0) {
4430 * Inject errors on a normal data device or slog device.
4432 top = ztest_random_vdev_top(spa, B_TRUE);
4433 leaf = ztest_random(leaves) + zs->zs_splits;
4436 * Generate paths to the first leaf in this top-level vdev,
4437 * and to the random leaf we selected. We'll induce transient
4438 * write failures and random online/offline activity on leaf 0,
4439 * and we'll write random garbage to the randomly chosen leaf.
4441 (void) snprintf(path0, sizeof (path0), ztest_dev_template,
4442 zopt_dir, zopt_pool, top * leaves + zs->zs_splits);
4443 (void) snprintf(pathrand, sizeof (pathrand), ztest_dev_template,
4444 zopt_dir, zopt_pool, top * leaves + leaf);
4446 vd0 = vdev_lookup_by_path(spa->spa_root_vdev, path0);
4447 if (vd0 != NULL && vd0->vdev_top->vdev_islog)
4450 if (vd0 != NULL && maxfaults != 1) {
4452 * Make vd0 explicitly claim to be unreadable,
4453 * or unwriteable, or reach behind its back
4454 * and close the underlying fd. We can do this if
4455 * maxfaults == 0 because we'll fail and reexecute,
4456 * and we can do it if maxfaults >= 2 because we'll
4457 * have enough redundancy. If maxfaults == 1, the
4458 * combination of this with injection of random data
4459 * corruption below exceeds the pool's fault tolerance.
4461 vdev_file_t *vf = vd0->vdev_tsd;
4463 if (vf != NULL && ztest_random(3) == 0) {
4464 (void) close(vf->vf_vnode->v_fd);
4465 vf->vf_vnode->v_fd = -1;
4466 } else if (ztest_random(2) == 0) {
4467 vd0->vdev_cant_read = B_TRUE;
4469 vd0->vdev_cant_write = B_TRUE;
4471 guid0 = vd0->vdev_guid;
4475 * Inject errors on an l2cache device.
4477 spa_aux_vdev_t *sav = &spa->spa_l2cache;
4479 if (sav->sav_count == 0) {
4480 spa_config_exit(spa, SCL_STATE, FTAG);
4483 vd0 = sav->sav_vdevs[ztest_random(sav->sav_count)];
4484 guid0 = vd0->vdev_guid;
4485 (void) strcpy(path0, vd0->vdev_path);
4486 (void) strcpy(pathrand, vd0->vdev_path);
4490 maxfaults = INT_MAX; /* no limit on cache devices */
4493 spa_config_exit(spa, SCL_STATE, FTAG);
4496 * If we can tolerate two or more faults, or we're dealing
4497 * with a slog, randomly online/offline vd0.
4499 if ((maxfaults >= 2 || islog) && guid0 != 0) {
4500 if (ztest_random(10) < 6) {
4501 int flags = (ztest_random(2) == 0 ?
4502 ZFS_OFFLINE_TEMPORARY : 0);
4505 * We have to grab the zs_name_lock as writer to
4506 * prevent a race between offlining a slog and
4507 * destroying a dataset. Offlining the slog will
4508 * grab a reference on the dataset which may cause
4509 * dmu_objset_destroy() to fail with EBUSY thus
4510 * leaving the dataset in an inconsistent state.
4513 (void) rw_wrlock(&ztest_shared->zs_name_lock);
4515 VERIFY(vdev_offline(spa, guid0, flags) != EBUSY);
4518 (void) rw_unlock(&ztest_shared->zs_name_lock);
4520 (void) vdev_online(spa, guid0, 0, NULL);
4528 * We have at least single-fault tolerance, so inject data corruption.
4530 fd = open(pathrand, O_RDWR);
4532 if (fd == -1) /* we hit a gap in the device namespace */
4535 fsize = lseek(fd, 0, SEEK_END);
4537 while (--iters != 0) {
4538 offset = ztest_random(fsize / (leaves << bshift)) *
4539 (leaves << bshift) + (leaf << bshift) +
4540 (ztest_random(1ULL << (bshift - 1)) & -8ULL);
4542 if (offset >= fsize)
4545 VERIFY(mutex_lock(&zs->zs_vdev_lock) == 0);
4546 if (mirror_save != zs->zs_mirrors) {
4547 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
4552 if (pwrite(fd, &bad, sizeof (bad), offset) != sizeof (bad))
4553 fatal(1, "can't inject bad word at 0x%llx in %s",
4556 VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
4558 if (zopt_verbose >= 7)
4559 (void) printf("injected bad word into %s,"
4560 " offset 0x%llx\n", pathrand, (u_longlong_t)offset);
4567 * Verify that DDT repair works as expected.
4570 ztest_ddt_repair(ztest_ds_t *zd, uint64_t id)
4572 ztest_shared_t *zs = ztest_shared;
4573 spa_t *spa = zs->zs_spa;
4574 objset_t *os = zd->zd_os;
4576 uint64_t object, blocksize, txg, pattern, psize;
4577 enum zio_checksum checksum = spa_dedup_checksum(spa);
4582 int copies = 2 * ZIO_DEDUPDITTO_MIN;
4584 blocksize = ztest_random_blocksize();
4585 blocksize = MIN(blocksize, 2048); /* because we write so many */
4587 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
4589 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
4593 * Take the name lock as writer to prevent anyone else from changing
4594 * the pool and dataset properies we need to maintain during this test.
4596 (void) rw_wrlock(&zs->zs_name_lock);
4598 if (ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_DEDUP, checksum,
4600 ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_COPIES, 1,
4602 (void) rw_unlock(&zs->zs_name_lock);
4606 object = od[0].od_object;
4607 blocksize = od[0].od_blocksize;
4608 pattern = spa_guid(spa) ^ dmu_objset_fsid_guid(os);
4610 ASSERT(object != 0);
4612 tx = dmu_tx_create(os);
4613 dmu_tx_hold_write(tx, object, 0, copies * blocksize);
4614 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
4616 (void) rw_unlock(&zs->zs_name_lock);
4621 * Write all the copies of our block.
4623 for (int i = 0; i < copies; i++) {
4624 uint64_t offset = i * blocksize;
4625 VERIFY(dmu_buf_hold(os, object, offset, FTAG, &db,
4626 DMU_READ_NO_PREFETCH) == 0);
4627 ASSERT(db->db_offset == offset);
4628 ASSERT(db->db_size == blocksize);
4629 ASSERT(ztest_pattern_match(db->db_data, db->db_size, pattern) ||
4630 ztest_pattern_match(db->db_data, db->db_size, 0ULL));
4631 dmu_buf_will_fill(db, tx);
4632 ztest_pattern_set(db->db_data, db->db_size, pattern);
4633 dmu_buf_rele(db, FTAG);
4637 txg_wait_synced(spa_get_dsl(spa), txg);
4640 * Find out what block we got.
4642 VERIFY(dmu_buf_hold(os, object, 0, FTAG, &db,
4643 DMU_READ_NO_PREFETCH) == 0);
4644 blk = *((dmu_buf_impl_t *)db)->db_blkptr;
4645 dmu_buf_rele(db, FTAG);
4648 * Damage the block. Dedup-ditto will save us when we read it later.
4650 psize = BP_GET_PSIZE(&blk);
4651 buf = zio_buf_alloc(psize);
4652 ztest_pattern_set(buf, psize, ~pattern);
4654 (void) zio_wait(zio_rewrite(NULL, spa, 0, &blk,
4655 buf, psize, NULL, NULL, ZIO_PRIORITY_SYNC_WRITE,
4656 ZIO_FLAG_CANFAIL | ZIO_FLAG_INDUCE_DAMAGE, NULL));
4658 zio_buf_free(buf, psize);
4660 (void) rw_unlock(&zs->zs_name_lock);
4668 ztest_scrub(ztest_ds_t *zd, uint64_t id)
4670 ztest_shared_t *zs = ztest_shared;
4671 spa_t *spa = zs->zs_spa;
4673 (void) spa_scan(spa, POOL_SCAN_SCRUB);
4674 (void) poll(NULL, 0, 100); /* wait a moment, then force a restart */
4675 (void) spa_scan(spa, POOL_SCAN_SCRUB);
4679 * Rename the pool to a different name and then rename it back.
4683 ztest_spa_rename(ztest_ds_t *zd, uint64_t id)
4685 ztest_shared_t *zs = ztest_shared;
4686 char *oldname, *newname;
4689 (void) rw_wrlock(&zs->zs_name_lock);
4691 oldname = zs->zs_pool;
4692 newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
4693 (void) strcpy(newname, oldname);
4694 (void) strcat(newname, "_tmp");
4699 VERIFY3U(0, ==, spa_rename(oldname, newname));
4702 * Try to open it under the old name, which shouldn't exist
4704 VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
4707 * Open it under the new name and make sure it's still the same spa_t.
4709 VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
4711 ASSERT(spa == zs->zs_spa);
4712 spa_close(spa, FTAG);
4715 * Rename it back to the original
4717 VERIFY3U(0, ==, spa_rename(newname, oldname));
4720 * Make sure it can still be opened
4722 VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
4724 ASSERT(spa == zs->zs_spa);
4725 spa_close(spa, FTAG);
4727 umem_free(newname, strlen(newname) + 1);
4729 (void) rw_unlock(&zs->zs_name_lock);
4733 * Verify pool integrity by running zdb.
4736 ztest_run_zdb(char *pool)
4739 char zdb[MAXPATHLEN + MAXNAMELEN + 20];
4747 (void) realpath(getexecname(), zdb);
4749 /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
4750 bin = strstr(zdb, "/usr/bin/");
4751 ztest = strstr(bin, "/ztest");
4753 isalen = ztest - isa;
4757 "/usr/sbin%.*s/zdb -bcc%s%s -U %s %s",
4760 zopt_verbose >= 3 ? "s" : "",
4761 zopt_verbose >= 4 ? "v" : "",
4766 if (zopt_verbose >= 5)
4767 (void) printf("Executing %s\n", strstr(zdb, "zdb "));
4769 fp = popen(zdb, "r");
4771 while (fgets(zbuf, sizeof (zbuf), fp) != NULL)
4772 if (zopt_verbose >= 3)
4773 (void) printf("%s", zbuf);
4775 status = pclose(fp);
4780 ztest_dump_core = 0;
4781 if (WIFEXITED(status))
4782 fatal(0, "'%s' exit code %d", zdb, WEXITSTATUS(status));
4784 fatal(0, "'%s' died with signal %d", zdb, WTERMSIG(status));
4788 ztest_walk_pool_directory(char *header)
4792 if (zopt_verbose >= 6)
4793 (void) printf("%s\n", header);
4795 mutex_enter(&spa_namespace_lock);
4796 while ((spa = spa_next(spa)) != NULL)
4797 if (zopt_verbose >= 6)
4798 (void) printf("\t%s\n", spa_name(spa));
4799 mutex_exit(&spa_namespace_lock);
4803 ztest_spa_import_export(char *oldname, char *newname)
4805 nvlist_t *config, *newconfig;
4809 if (zopt_verbose >= 4) {
4810 (void) printf("import/export: old = %s, new = %s\n",
4815 * Clean up from previous runs.
4817 (void) spa_destroy(newname);
4820 * Get the pool's configuration and guid.
4822 VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
4825 * Kick off a scrub to tickle scrub/export races.
4827 if (ztest_random(2) == 0)
4828 (void) spa_scan(spa, POOL_SCAN_SCRUB);
4830 pool_guid = spa_guid(spa);
4831 spa_close(spa, FTAG);
4833 ztest_walk_pool_directory("pools before export");
4838 VERIFY3U(0, ==, spa_export(oldname, &config, B_FALSE, B_FALSE));
4840 ztest_walk_pool_directory("pools after export");
4845 newconfig = spa_tryimport(config);
4846 ASSERT(newconfig != NULL);
4847 nvlist_free(newconfig);
4850 * Import it under the new name.
4852 VERIFY3U(0, ==, spa_import(newname, config, NULL, 0));
4854 ztest_walk_pool_directory("pools after import");
4857 * Try to import it again -- should fail with EEXIST.
4859 VERIFY3U(EEXIST, ==, spa_import(newname, config, NULL, 0));
4862 * Try to import it under a different name -- should fail with EEXIST.
4864 VERIFY3U(EEXIST, ==, spa_import(oldname, config, NULL, 0));
4867 * Verify that the pool is no longer visible under the old name.
4869 VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
4872 * Verify that we can open and close the pool using the new name.
4874 VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
4875 ASSERT(pool_guid == spa_guid(spa));
4876 spa_close(spa, FTAG);
4878 nvlist_free(config);
4882 ztest_resume(spa_t *spa)
4884 if (spa_suspended(spa) && zopt_verbose >= 6)
4885 (void) printf("resuming from suspended state\n");
4886 spa_vdev_state_enter(spa, SCL_NONE);
4887 vdev_clear(spa, NULL);
4888 (void) spa_vdev_state_exit(spa, NULL, 0);
4889 (void) zio_resume(spa);
4893 ztest_resume_thread(void *arg)
4897 while (!ztest_exiting) {
4898 if (spa_suspended(spa))
4900 (void) poll(NULL, 0, 100);
4906 ztest_deadman_thread(void *arg)
4908 ztest_shared_t *zs = arg;
4912 delta = (zs->zs_thread_stop - zs->zs_thread_start) / NANOSEC + grace;
4914 (void) poll(NULL, 0, (int)(1000 * delta));
4916 fatal(0, "failed to complete within %d seconds of deadline", grace);
4922 ztest_execute(ztest_info_t *zi, uint64_t id)
4924 ztest_shared_t *zs = ztest_shared;
4925 ztest_ds_t *zd = &zs->zs_zd[id % zopt_datasets];
4926 hrtime_t functime = gethrtime();
4928 for (int i = 0; i < zi->zi_iters; i++)
4929 zi->zi_func(zd, id);
4931 functime = gethrtime() - functime;
4933 atomic_add_64(&zi->zi_call_count, 1);
4934 atomic_add_64(&zi->zi_call_time, functime);
4936 if (zopt_verbose >= 4) {
4938 (void) dladdr((void *)zi->zi_func, &dli);
4939 (void) printf("%6.2f sec in %s\n",
4940 (double)functime / NANOSEC, dli.dli_sname);
4945 ztest_thread(void *arg)
4947 uint64_t id = (uintptr_t)arg;
4948 ztest_shared_t *zs = ztest_shared;
4953 while ((now = gethrtime()) < zs->zs_thread_stop) {
4955 * See if it's time to force a crash.
4957 if (now > zs->zs_thread_kill)
4961 * If we're getting ENOSPC with some regularity, stop.
4963 if (zs->zs_enospc_count > 10)
4967 * Pick a random function to execute.
4969 zi = &zs->zs_info[ztest_random(ZTEST_FUNCS)];
4970 call_next = zi->zi_call_next;
4972 if (now >= call_next &&
4973 atomic_cas_64(&zi->zi_call_next, call_next, call_next +
4974 ztest_random(2 * zi->zi_interval[0] + 1)) == call_next)
4975 ztest_execute(zi, id);
4982 ztest_dataset_name(char *dsname, char *pool, int d)
4984 (void) snprintf(dsname, MAXNAMELEN, "%s/ds_%d", pool, d);
4988 ztest_dataset_destroy(ztest_shared_t *zs, int d)
4990 char name[MAXNAMELEN];
4992 ztest_dataset_name(name, zs->zs_pool, d);
4994 if (zopt_verbose >= 3)
4995 (void) printf("Destroying %s to free up space\n", name);
4998 * Cleanup any non-standard clones and snapshots. In general,
4999 * ztest thread t operates on dataset (t % zopt_datasets),
5000 * so there may be more than one thing to clean up.
5002 for (int t = d; t < zopt_threads; t += zopt_datasets)
5003 ztest_dsl_dataset_cleanup(name, t);
5005 (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
5006 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
5010 ztest_dataset_dirobj_verify(ztest_ds_t *zd)
5012 uint64_t usedobjs, dirobjs, scratch;
5015 * ZTEST_DIROBJ is the object directory for the entire dataset.
5016 * Therefore, the number of objects in use should equal the
5017 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5018 * If not, we have an object leak.
5020 * Note that we can only check this in ztest_dataset_open(),
5021 * when the open-context and syncing-context values agree.
5022 * That's because zap_count() returns the open-context value,
5023 * while dmu_objset_space() returns the rootbp fill count.
5025 VERIFY3U(0, ==, zap_count(zd->zd_os, ZTEST_DIROBJ, &dirobjs));
5026 dmu_objset_space(zd->zd_os, &scratch, &scratch, &usedobjs, &scratch);
5027 ASSERT3U(dirobjs + 1, ==, usedobjs);
5031 ztest_dataset_open(ztest_shared_t *zs, int d)
5033 ztest_ds_t *zd = &zs->zs_zd[d];
5034 uint64_t committed_seq = zd->zd_seq;
5037 char name[MAXNAMELEN];
5040 ztest_dataset_name(name, zs->zs_pool, d);
5042 (void) rw_rdlock(&zs->zs_name_lock);
5044 error = ztest_dataset_create(name);
5045 if (error == ENOSPC) {
5046 (void) rw_unlock(&zs->zs_name_lock);
5047 ztest_record_enospc(FTAG);
5050 ASSERT(error == 0 || error == EEXIST);
5052 VERIFY3U(dmu_objset_hold(name, zd, &os), ==, 0);
5053 (void) rw_unlock(&zs->zs_name_lock);
5055 ztest_zd_init(zd, os);
5057 zilog = zd->zd_zilog;
5059 if (zilog->zl_header->zh_claim_lr_seq != 0 &&
5060 zilog->zl_header->zh_claim_lr_seq < committed_seq)
5061 fatal(0, "missing log records: claimed %llu < committed %llu",
5062 zilog->zl_header->zh_claim_lr_seq, committed_seq);
5064 ztest_dataset_dirobj_verify(zd);
5066 zil_replay(os, zd, ztest_replay_vector);
5068 ztest_dataset_dirobj_verify(zd);
5070 if (zopt_verbose >= 6)
5071 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5073 (u_longlong_t)zilog->zl_parse_blk_count,
5074 (u_longlong_t)zilog->zl_parse_lr_count,
5075 (u_longlong_t)zilog->zl_replaying_seq);
5077 zilog = zil_open(os, ztest_get_data);
5079 if (zilog->zl_replaying_seq != 0 &&
5080 zilog->zl_replaying_seq < committed_seq)
5081 fatal(0, "missing log records: replayed %llu < committed %llu",
5082 zilog->zl_replaying_seq, committed_seq);
5088 ztest_dataset_close(ztest_shared_t *zs, int d)
5090 ztest_ds_t *zd = &zs->zs_zd[d];
5092 zil_close(zd->zd_zilog);
5093 dmu_objset_rele(zd->zd_os, zd);
5099 * Kick off threads to run tests on all datasets in parallel.
5102 ztest_run(ztest_shared_t *zs)
5106 thread_t resume_tid;
5109 ztest_exiting = B_FALSE;
5112 * Initialize parent/child shared state.
5114 VERIFY(_mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL) == 0);
5115 VERIFY(rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL) == 0);
5117 zs->zs_thread_start = gethrtime();
5118 zs->zs_thread_stop = zs->zs_thread_start + zopt_passtime * NANOSEC;
5119 zs->zs_thread_stop = MIN(zs->zs_thread_stop, zs->zs_proc_stop);
5120 zs->zs_thread_kill = zs->zs_thread_stop;
5121 if (ztest_random(100) < zopt_killrate)
5122 zs->zs_thread_kill -= ztest_random(zopt_passtime * NANOSEC);
5124 (void) _mutex_init(&zcl.zcl_callbacks_lock, USYNC_THREAD, NULL);
5126 list_create(&zcl.zcl_callbacks, sizeof (ztest_cb_data_t),
5127 offsetof(ztest_cb_data_t, zcd_node));
5132 kernel_init(FREAD | FWRITE);
5133 VERIFY(spa_open(zs->zs_pool, &spa, FTAG) == 0);
5136 spa->spa_dedup_ditto = 2 * ZIO_DEDUPDITTO_MIN;
5139 * We don't expect the pool to suspend unless maxfaults == 0,
5140 * in which case ztest_fault_inject() temporarily takes away
5141 * the only valid replica.
5143 if (MAXFAULTS() == 0)
5144 spa->spa_failmode = ZIO_FAILURE_MODE_WAIT;
5146 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC;
5149 * Create a thread to periodically resume suspended I/O.
5151 VERIFY(thr_create(0, 0, ztest_resume_thread, spa, THR_BOUND,
5155 * Create a deadman thread to abort() if we hang.
5157 VERIFY(thr_create(0, 0, ztest_deadman_thread, zs, THR_BOUND,
5161 * Verify that we can safely inquire about about any object,
5162 * whether it's allocated or not. To make it interesting,
5163 * we probe a 5-wide window around each power of two.
5164 * This hits all edge cases, including zero and the max.
5166 for (int t = 0; t < 64; t++) {
5167 for (int d = -5; d <= 5; d++) {
5168 error = dmu_object_info(spa->spa_meta_objset,
5169 (1ULL << t) + d, NULL);
5170 ASSERT(error == 0 || error == ENOENT ||
5176 * If we got any ENOSPC errors on the previous run, destroy something.
5178 if (zs->zs_enospc_count != 0) {
5179 int d = ztest_random(zopt_datasets);
5180 ztest_dataset_destroy(zs, d);
5182 zs->zs_enospc_count = 0;
5184 tid = umem_zalloc(zopt_threads * sizeof (thread_t), UMEM_NOFAIL);
5186 if (zopt_verbose >= 4)
5187 (void) printf("starting main threads...\n");
5190 * Kick off all the tests that run in parallel.
5192 for (int t = 0; t < zopt_threads; t++) {
5193 if (t < zopt_datasets && ztest_dataset_open(zs, t) != 0)
5195 VERIFY(thr_create(0, 0, ztest_thread, (void *)(uintptr_t)t,
5196 THR_BOUND, &tid[t]) == 0);
5200 * Wait for all of the tests to complete. We go in reverse order
5201 * so we don't close datasets while threads are still using them.
5203 for (int t = zopt_threads - 1; t >= 0; t--) {
5204 VERIFY(thr_join(tid[t], NULL, NULL) == 0);
5205 if (t < zopt_datasets)
5206 ztest_dataset_close(zs, t);
5209 txg_wait_synced(spa_get_dsl(spa), 0);
5211 zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
5212 zs->zs_space = metaslab_class_get_space(spa_normal_class(spa));
5214 umem_free(tid, zopt_threads * sizeof (thread_t));
5216 /* Kill the resume thread */
5217 ztest_exiting = B_TRUE;
5218 VERIFY(thr_join(resume_tid, NULL, NULL) == 0);
5222 * Right before closing the pool, kick off a bunch of async I/O;
5223 * spa_close() should wait for it to complete.
5225 for (uint64_t object = 1; object < 50; object++)
5226 dmu_prefetch(spa->spa_meta_objset, object, 0, 1ULL << 20);
5228 spa_close(spa, FTAG);
5231 * Verify that we can loop over all pools.
5233 mutex_enter(&spa_namespace_lock);
5234 for (spa = spa_next(NULL); spa != NULL; spa = spa_next(spa))
5235 if (zopt_verbose > 3)
5236 (void) printf("spa_next: found %s\n", spa_name(spa));
5237 mutex_exit(&spa_namespace_lock);
5240 * Verify that we can export the pool and reimport it under a
5243 if (ztest_random(2) == 0) {
5244 char name[MAXNAMELEN];
5245 (void) snprintf(name, MAXNAMELEN, "%s_import", zs->zs_pool);
5246 ztest_spa_import_export(zs->zs_pool, name);
5247 ztest_spa_import_export(name, zs->zs_pool);
5252 list_destroy(&zcl.zcl_callbacks);
5254 (void) _mutex_destroy(&zcl.zcl_callbacks_lock);
5256 (void) rwlock_destroy(&zs->zs_name_lock);
5257 (void) _mutex_destroy(&zs->zs_vdev_lock);
5261 ztest_freeze(ztest_shared_t *zs)
5263 ztest_ds_t *zd = &zs->zs_zd[0];
5267 if (zopt_verbose >= 3)
5268 (void) printf("testing spa_freeze()...\n");
5270 kernel_init(FREAD | FWRITE);
5271 VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
5272 VERIFY3U(0, ==, ztest_dataset_open(zs, 0));
5275 * Force the first log block to be transactionally allocated.
5276 * We have to do this before we freeze the pool -- otherwise
5277 * the log chain won't be anchored.
5279 while (BP_IS_HOLE(&zd->zd_zilog->zl_header->zh_log)) {
5280 ztest_dmu_object_alloc_free(zd, 0);
5281 zil_commit(zd->zd_zilog, 0);
5284 txg_wait_synced(spa_get_dsl(spa), 0);
5287 * Freeze the pool. This stops spa_sync() from doing anything,
5288 * so that the only way to record changes from now on is the ZIL.
5293 * Run tests that generate log records but don't alter the pool config
5294 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5295 * We do a txg_wait_synced() after each iteration to force the txg
5296 * to increase well beyond the last synced value in the uberblock.
5297 * The ZIL should be OK with that.
5299 while (ztest_random(10) != 0 && numloops++ < zopt_maxloops) {
5300 ztest_dmu_write_parallel(zd, 0);
5301 ztest_dmu_object_alloc_free(zd, 0);
5302 txg_wait_synced(spa_get_dsl(spa), 0);
5306 * Commit all of the changes we just generated.
5308 zil_commit(zd->zd_zilog, 0);
5309 txg_wait_synced(spa_get_dsl(spa), 0);
5312 * Close our dataset and close the pool.
5314 ztest_dataset_close(zs, 0);
5315 spa_close(spa, FTAG);
5319 * Open and close the pool and dataset to induce log replay.
5321 kernel_init(FREAD | FWRITE);
5322 VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
5323 VERIFY3U(0, ==, ztest_dataset_open(zs, 0));
5324 ztest_dataset_close(zs, 0);
5325 spa_close(spa, FTAG);
5330 print_time(hrtime_t t, char *timebuf)
5332 hrtime_t s = t / NANOSEC;
5333 hrtime_t m = s / 60;
5334 hrtime_t h = m / 60;
5335 hrtime_t d = h / 24;
5344 (void) sprintf(timebuf,
5345 "%llud%02lluh%02llum%02llus", d, h, m, s);
5347 (void) sprintf(timebuf, "%lluh%02llum%02llus", h, m, s);
5349 (void) sprintf(timebuf, "%llum%02llus", m, s);
5351 (void) sprintf(timebuf, "%llus", s);
5359 if (ztest_random(2) == 0)
5362 VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0);
5363 VERIFY(nvlist_add_uint64(props, "autoreplace", 1) == 0);
5365 (void) printf("props:\n");
5366 dump_nvlist(props, 4);
5372 * Create a storage pool with the given name and initial vdev size.
5373 * Then test spa_freeze() functionality.
5376 ztest_init(ztest_shared_t *zs)
5379 nvlist_t *nvroot, *props;
5381 VERIFY(_mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL) == 0);
5382 VERIFY(rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL) == 0);
5384 kernel_init(FREAD | FWRITE);
5387 * Create the storage pool.
5389 (void) spa_destroy(zs->zs_pool);
5390 ztest_shared->zs_vdev_next_leaf = 0;
5392 zs->zs_mirrors = zopt_mirrors;
5393 nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0,
5394 0, zopt_raidz, zs->zs_mirrors, 1);
5395 props = make_random_props();
5396 VERIFY3U(0, ==, spa_create(zs->zs_pool, nvroot, props, NULL, NULL));
5397 nvlist_free(nvroot);
5399 VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
5400 metaslab_sz = 1ULL << spa->spa_root_vdev->vdev_child[0]->vdev_ms_shift;
5401 spa_close(spa, FTAG);
5405 ztest_run_zdb(zs->zs_pool);
5409 ztest_run_zdb(zs->zs_pool);
5411 (void) rwlock_destroy(&zs->zs_name_lock);
5412 (void) _mutex_destroy(&zs->zs_vdev_lock);
5416 main(int argc, char **argv)
5427 (void) setvbuf(stdout, NULL, _IOLBF, 0);
5429 ztest_random_fd = open("/dev/urandom", O_RDONLY);
5431 process_options(argc, argv);
5433 /* Override location of zpool.cache */
5434 (void) asprintf((char **)&spa_config_path, "%s/zpool.cache", zopt_dir);
5437 * Blow away any existing copy of zpool.cache
5440 (void) remove(spa_config_path);
5442 shared_size = sizeof (*zs) + zopt_datasets * sizeof (ztest_ds_t);
5444 zs = ztest_shared = (void *)mmap(0,
5445 P2ROUNDUP(shared_size, getpagesize()),
5446 PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0);
5448 if (zopt_verbose >= 1) {
5449 (void) printf("%llu vdevs, %d datasets, %d threads,"
5450 " %llu seconds...\n",
5451 (u_longlong_t)zopt_vdevs, zopt_datasets, zopt_threads,
5452 (u_longlong_t)zopt_time);
5456 * Create and initialize our storage pool.
5458 for (int i = 1; i <= zopt_init; i++) {
5459 bzero(zs, sizeof (ztest_shared_t));
5460 if (zopt_verbose >= 3 && zopt_init != 1)
5461 (void) printf("ztest_init(), pass %d\n", i);
5462 zs->zs_pool = zopt_pool;
5466 zs->zs_pool = zopt_pool;
5467 zs->zs_proc_start = gethrtime();
5468 zs->zs_proc_stop = zs->zs_proc_start + zopt_time * NANOSEC;
5470 for (int f = 0; f < ZTEST_FUNCS; f++) {
5471 zi = &zs->zs_info[f];
5472 *zi = ztest_info[f];
5473 if (zs->zs_proc_start + zi->zi_interval[0] > zs->zs_proc_stop)
5474 zi->zi_call_next = UINT64_MAX;
5476 zi->zi_call_next = zs->zs_proc_start +
5477 ztest_random(2 * zi->zi_interval[0] + 1);
5481 * Run the tests in a loop. These tests include fault injection
5482 * to verify that self-healing data works, and forced crashes
5483 * to verify that we never lose on-disk consistency.
5485 while (gethrtime() < zs->zs_proc_stop) {
5490 * Initialize the workload counters for each function.
5492 for (int f = 0; f < ZTEST_FUNCS; f++) {
5493 zi = &zs->zs_info[f];
5494 zi->zi_call_count = 0;
5495 zi->zi_call_time = 0;
5498 /* Set the allocation switch size */
5499 metaslab_df_alloc_threshold = ztest_random(metaslab_sz / 4) + 1;
5504 fatal(1, "fork failed");
5506 if (pid == 0) { /* child */
5507 struct rlimit rl = { 1024, 1024 };
5508 (void) setrlimit(RLIMIT_NOFILE, &rl);
5509 (void) enable_extended_FILE_stdio(-1, -1);
5514 while (waitpid(pid, &status, 0) != pid)
5517 if (WIFEXITED(status)) {
5518 if (WEXITSTATUS(status) != 0) {
5519 (void) fprintf(stderr,
5520 "child exited with code %d\n",
5521 WEXITSTATUS(status));
5524 } else if (WIFSIGNALED(status)) {
5525 if (WTERMSIG(status) != SIGKILL) {
5526 (void) fprintf(stderr,
5527 "child died with signal %d\n",
5533 (void) fprintf(stderr, "something strange happened "
5540 if (zopt_verbose >= 1) {
5541 hrtime_t now = gethrtime();
5543 now = MIN(now, zs->zs_proc_stop);
5544 print_time(zs->zs_proc_stop - now, timebuf);
5545 nicenum(zs->zs_space, numbuf);
5547 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
5548 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
5550 WIFEXITED(status) ? "Complete" : "SIGKILL",
5551 (u_longlong_t)zs->zs_enospc_count,
5552 100.0 * zs->zs_alloc / zs->zs_space,
5554 100.0 * (now - zs->zs_proc_start) /
5555 (zopt_time * NANOSEC), timebuf);
5558 if (zopt_verbose >= 2) {
5559 (void) printf("\nWorkload summary:\n\n");
5560 (void) printf("%7s %9s %s\n",
5561 "Calls", "Time", "Function");
5562 (void) printf("%7s %9s %s\n",
5563 "-----", "----", "--------");
5564 for (int f = 0; f < ZTEST_FUNCS; f++) {
5567 zi = &zs->zs_info[f];
5568 print_time(zi->zi_call_time, timebuf);
5569 (void) dladdr((void *)zi->zi_func, &dli);
5570 (void) printf("%7llu %9s %s\n",
5571 (u_longlong_t)zi->zi_call_count, timebuf,
5574 (void) printf("\n");
5578 * It's possible that we killed a child during a rename test,
5579 * in which case we'll have a 'ztest_tmp' pool lying around
5580 * instead of 'ztest'. Do a blind rename in case this happened.
5583 if (spa_open(zopt_pool, &spa, FTAG) == 0) {
5584 spa_close(spa, FTAG);
5586 char tmpname[MAXNAMELEN];
5588 kernel_init(FREAD | FWRITE);
5589 (void) snprintf(tmpname, sizeof (tmpname), "%s_tmp",
5591 (void) spa_rename(tmpname, zopt_pool);
5595 ztest_run_zdb(zopt_pool);
5598 if (zopt_verbose >= 1) {
5599 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
5600 kills, iters - kills, (100.0 * kills) / MAX(1, iters));