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.
23 * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2012 Martin Matuska <mm@FreeBSD.org>. All rights reserved.
26 * Copyright (c) 2013 Steven Hartland. All rights reserved.
30 * The objective of this program is to provide a DMU/ZAP/SPA stress test
31 * that runs entirely in userland, is easy to use, and easy to extend.
33 * The overall design of the ztest program is as follows:
35 * (1) For each major functional area (e.g. adding vdevs to a pool,
36 * creating and destroying datasets, reading and writing objects, etc)
37 * we have a simple routine to test that functionality. These
38 * individual routines do not have to do anything "stressful".
40 * (2) We turn these simple functionality tests into a stress test by
41 * running them all in parallel, with as many threads as desired,
42 * and spread across as many datasets, objects, and vdevs as desired.
44 * (3) While all this is happening, we inject faults into the pool to
45 * verify that self-healing data really works.
47 * (4) Every time we open a dataset, we change its checksum and compression
48 * functions. Thus even individual objects vary from block to block
49 * in which checksum they use and whether they're compressed.
51 * (5) To verify that we never lose on-disk consistency after a crash,
52 * we run the entire test in a child of the main process.
53 * At random times, the child self-immolates with a SIGKILL.
54 * This is the software equivalent of pulling the power cord.
55 * The parent then runs the test again, using the existing
56 * storage pool, as many times as desired. If backwards compatibility
57 * testing is enabled ztest will sometimes run the "older" version
58 * of ztest after a SIGKILL.
60 * (6) To verify that we don't have future leaks or temporal incursions,
61 * many of the functional tests record the transaction group number
62 * as part of their data. When reading old data, they verify that
63 * the transaction group number is less than the current, open txg.
64 * If you add a new test, please do this if applicable.
66 * When run with no arguments, ztest runs for about five minutes and
67 * produces no output if successful. To get a little bit of information,
68 * specify -V. To get more information, specify -VV, and so on.
70 * To turn this into an overnight stress test, use -T to specify run time.
72 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
73 * to increase the pool capacity, fanout, and overall stress level.
75 * Use the -k option to set the desired frequency of kills.
77 * When ztest invokes itself it passes all relevant information through a
78 * temporary file which is mmap-ed in the child process. This allows shared
79 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
80 * stored at offset 0 of this file and contains information on the size and
81 * number of shared structures in the file. The information stored in this file
82 * must remain backwards compatible with older versions of ztest so that
83 * ztest can invoke them during backwards compatibility testing (-B).
86 #include <sys/zfs_context.h>
92 #include <sys/dmu_objset.h>
98 #include <sys/resource.h>
101 #include <sys/zil_impl.h>
102 #include <sys/vdev_impl.h>
103 #include <sys/vdev_file.h>
104 #include <sys/spa_impl.h>
105 #include <sys/metaslab_impl.h>
106 #include <sys/dsl_prop.h>
107 #include <sys/dsl_dataset.h>
108 #include <sys/dsl_destroy.h>
109 #include <sys/dsl_scan.h>
110 #include <sys/zio_checksum.h>
111 #include <sys/refcount.h>
112 #include <sys/zfeature.h>
113 #include <sys/dsl_userhold.h>
115 #include <stdio_ext.h>
124 #include <sys/fs/zfs.h>
125 #include <libnvpair.h>
127 static int ztest_fd_data = -1;
128 static int ztest_fd_rand = -1;
130 typedef struct ztest_shared_hdr {
131 uint64_t zh_hdr_size;
132 uint64_t zh_opts_size;
134 uint64_t zh_stats_size;
135 uint64_t zh_stats_count;
137 uint64_t zh_ds_count;
138 } ztest_shared_hdr_t;
140 static ztest_shared_hdr_t *ztest_shared_hdr;
142 typedef struct ztest_shared_opts {
143 char zo_pool[MAXNAMELEN];
144 char zo_dir[MAXNAMELEN];
145 char zo_alt_ztest[MAXNAMELEN];
146 char zo_alt_libpath[MAXNAMELEN];
148 uint64_t zo_vdevtime;
156 uint64_t zo_passtime;
157 uint64_t zo_killrate;
161 uint64_t zo_maxloops;
162 uint64_t zo_metaslab_gang_bang;
163 } ztest_shared_opts_t;
165 static const ztest_shared_opts_t ztest_opts_defaults = {
166 .zo_pool = { 'z', 't', 'e', 's', 't', '\0' },
167 .zo_dir = { '/', 't', 'm', 'p', '\0' },
168 .zo_alt_ztest = { '\0' },
169 .zo_alt_libpath = { '\0' },
171 .zo_ashift = SPA_MINBLOCKSHIFT,
174 .zo_raidz_parity = 1,
175 .zo_vdev_size = SPA_MINDEVSIZE * 2,
178 .zo_passtime = 60, /* 60 seconds */
179 .zo_killrate = 70, /* 70% kill rate */
182 .zo_time = 300, /* 5 minutes */
183 .zo_maxloops = 50, /* max loops during spa_freeze() */
184 .zo_metaslab_gang_bang = 32 << 10
187 extern uint64_t metaslab_gang_bang;
188 extern uint64_t metaslab_df_alloc_threshold;
189 extern uint64_t zfs_deadman_synctime_ms;
190 extern int metaslab_preload_limit;
192 static ztest_shared_opts_t *ztest_shared_opts;
193 static ztest_shared_opts_t ztest_opts;
195 typedef struct ztest_shared_ds {
199 static ztest_shared_ds_t *ztest_shared_ds;
200 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
202 #define BT_MAGIC 0x123456789abcdefULL
203 #define MAXFAULTS() \
204 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
208 ZTEST_IO_WRITE_PATTERN,
209 ZTEST_IO_WRITE_ZEROES,
216 typedef struct ztest_block_tag {
226 typedef struct bufwad {
233 * XXX -- fix zfs range locks to be generic so we can use them here.
255 #define ZTEST_RANGE_LOCKS 64
256 #define ZTEST_OBJECT_LOCKS 64
259 * Object descriptor. Used as a template for object lookup/create/remove.
261 typedef struct ztest_od {
264 dmu_object_type_t od_type;
265 dmu_object_type_t od_crtype;
266 uint64_t od_blocksize;
267 uint64_t od_crblocksize;
270 char od_name[MAXNAMELEN];
276 typedef struct ztest_ds {
277 ztest_shared_ds_t *zd_shared;
279 rwlock_t zd_zilog_lock;
281 ztest_od_t *zd_od; /* debugging aid */
282 char zd_name[MAXNAMELEN];
283 mutex_t zd_dirobj_lock;
284 rll_t zd_object_lock[ZTEST_OBJECT_LOCKS];
285 rll_t zd_range_lock[ZTEST_RANGE_LOCKS];
289 * Per-iteration state.
291 typedef void ztest_func_t(ztest_ds_t *zd, uint64_t id);
293 typedef struct ztest_info {
294 ztest_func_t *zi_func; /* test function */
295 uint64_t zi_iters; /* iterations per execution */
296 uint64_t *zi_interval; /* execute every <interval> seconds */
299 typedef struct ztest_shared_callstate {
300 uint64_t zc_count; /* per-pass count */
301 uint64_t zc_time; /* per-pass time */
302 uint64_t zc_next; /* next time to call this function */
303 } ztest_shared_callstate_t;
305 static ztest_shared_callstate_t *ztest_shared_callstate;
306 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
309 * Note: these aren't static because we want dladdr() to work.
311 ztest_func_t ztest_dmu_read_write;
312 ztest_func_t ztest_dmu_write_parallel;
313 ztest_func_t ztest_dmu_object_alloc_free;
314 ztest_func_t ztest_dmu_commit_callbacks;
315 ztest_func_t ztest_zap;
316 ztest_func_t ztest_zap_parallel;
317 ztest_func_t ztest_zil_commit;
318 ztest_func_t ztest_zil_remount;
319 ztest_func_t ztest_dmu_read_write_zcopy;
320 ztest_func_t ztest_dmu_objset_create_destroy;
321 ztest_func_t ztest_dmu_prealloc;
322 ztest_func_t ztest_fzap;
323 ztest_func_t ztest_dmu_snapshot_create_destroy;
324 ztest_func_t ztest_dsl_prop_get_set;
325 ztest_func_t ztest_spa_prop_get_set;
326 ztest_func_t ztest_spa_create_destroy;
327 ztest_func_t ztest_fault_inject;
328 ztest_func_t ztest_ddt_repair;
329 ztest_func_t ztest_dmu_snapshot_hold;
330 ztest_func_t ztest_spa_rename;
331 ztest_func_t ztest_scrub;
332 ztest_func_t ztest_dsl_dataset_promote_busy;
333 ztest_func_t ztest_vdev_attach_detach;
334 ztest_func_t ztest_vdev_LUN_growth;
335 ztest_func_t ztest_vdev_add_remove;
336 ztest_func_t ztest_vdev_aux_add_remove;
337 ztest_func_t ztest_split_pool;
338 ztest_func_t ztest_reguid;
339 ztest_func_t ztest_spa_upgrade;
341 uint64_t zopt_always = 0ULL * NANOSEC; /* all the time */
342 uint64_t zopt_incessant = 1ULL * NANOSEC / 10; /* every 1/10 second */
343 uint64_t zopt_often = 1ULL * NANOSEC; /* every second */
344 uint64_t zopt_sometimes = 10ULL * NANOSEC; /* every 10 seconds */
345 uint64_t zopt_rarely = 60ULL * NANOSEC; /* every 60 seconds */
347 ztest_info_t ztest_info[] = {
348 { ztest_dmu_read_write, 1, &zopt_always },
349 { ztest_dmu_write_parallel, 10, &zopt_always },
350 { ztest_dmu_object_alloc_free, 1, &zopt_always },
351 { ztest_dmu_commit_callbacks, 1, &zopt_always },
352 { ztest_zap, 30, &zopt_always },
353 { ztest_zap_parallel, 100, &zopt_always },
354 { ztest_split_pool, 1, &zopt_always },
355 { ztest_zil_commit, 1, &zopt_incessant },
356 { ztest_zil_remount, 1, &zopt_sometimes },
357 { ztest_dmu_read_write_zcopy, 1, &zopt_often },
358 { ztest_dmu_objset_create_destroy, 1, &zopt_often },
359 { ztest_dsl_prop_get_set, 1, &zopt_often },
360 { ztest_spa_prop_get_set, 1, &zopt_sometimes },
362 { ztest_dmu_prealloc, 1, &zopt_sometimes },
364 { ztest_fzap, 1, &zopt_sometimes },
365 { ztest_dmu_snapshot_create_destroy, 1, &zopt_sometimes },
366 { ztest_spa_create_destroy, 1, &zopt_sometimes },
367 { ztest_fault_inject, 1, &zopt_sometimes },
368 { ztest_ddt_repair, 1, &zopt_sometimes },
369 { ztest_dmu_snapshot_hold, 1, &zopt_sometimes },
370 { ztest_reguid, 1, &zopt_rarely },
371 { ztest_spa_rename, 1, &zopt_rarely },
372 { ztest_scrub, 1, &zopt_rarely },
373 { ztest_spa_upgrade, 1, &zopt_rarely },
374 { ztest_dsl_dataset_promote_busy, 1, &zopt_rarely },
375 { ztest_vdev_attach_detach, 1, &zopt_sometimes },
376 { ztest_vdev_LUN_growth, 1, &zopt_rarely },
377 { ztest_vdev_add_remove, 1,
378 &ztest_opts.zo_vdevtime },
379 { ztest_vdev_aux_add_remove, 1,
380 &ztest_opts.zo_vdevtime },
383 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
386 * The following struct is used to hold a list of uncalled commit callbacks.
387 * The callbacks are ordered by txg number.
389 typedef struct ztest_cb_list {
390 mutex_t zcl_callbacks_lock;
391 list_t zcl_callbacks;
395 * Stuff we need to share writably between parent and child.
397 typedef struct ztest_shared {
398 boolean_t zs_do_init;
399 hrtime_t zs_proc_start;
400 hrtime_t zs_proc_stop;
401 hrtime_t zs_thread_start;
402 hrtime_t zs_thread_stop;
403 hrtime_t zs_thread_kill;
404 uint64_t zs_enospc_count;
405 uint64_t zs_vdev_next_leaf;
406 uint64_t zs_vdev_aux;
411 uint64_t zs_metaslab_sz;
412 uint64_t zs_metaslab_df_alloc_threshold;
416 #define ID_PARALLEL -1ULL
418 static char ztest_dev_template[] = "%s/%s.%llua";
419 static char ztest_aux_template[] = "%s/%s.%s.%llu";
420 ztest_shared_t *ztest_shared;
422 static spa_t *ztest_spa = NULL;
423 static ztest_ds_t *ztest_ds;
425 static mutex_t ztest_vdev_lock;
428 * The ztest_name_lock protects the pool and dataset namespace used by
429 * the individual tests. To modify the namespace, consumers must grab
430 * this lock as writer. Grabbing the lock as reader will ensure that the
431 * namespace does not change while the lock is held.
433 static rwlock_t ztest_name_lock;
435 static boolean_t ztest_dump_core = B_TRUE;
436 static boolean_t ztest_exiting;
438 /* Global commit callback list */
439 static ztest_cb_list_t zcl;
442 ZTEST_META_DNODE = 0,
447 static void usage(boolean_t) __NORETURN;
450 * These libumem hooks provide a reasonable set of defaults for the allocator's
451 * debugging facilities.
456 return ("default,verbose"); /* $UMEM_DEBUG setting */
460 _umem_logging_init(void)
462 return ("fail,contents"); /* $UMEM_LOGGING setting */
465 #define FATAL_MSG_SZ 1024
470 fatal(int do_perror, char *message, ...)
473 int save_errno = errno;
474 char buf[FATAL_MSG_SZ];
476 (void) fflush(stdout);
478 va_start(args, message);
479 (void) sprintf(buf, "ztest: ");
481 (void) vsprintf(buf + strlen(buf), message, args);
484 (void) snprintf(buf + strlen(buf), FATAL_MSG_SZ - strlen(buf),
485 ": %s", strerror(save_errno));
487 (void) fprintf(stderr, "%s\n", buf);
488 fatal_msg = buf; /* to ease debugging */
495 str2shift(const char *buf)
497 const char *ends = "BKMGTPEZ";
502 for (i = 0; i < strlen(ends); i++) {
503 if (toupper(buf[0]) == ends[i])
506 if (i == strlen(ends)) {
507 (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n",
511 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0')) {
514 (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n", buf);
520 nicenumtoull(const char *buf)
525 val = strtoull(buf, &end, 0);
527 (void) fprintf(stderr, "ztest: bad numeric value: %s\n", buf);
529 } else if (end[0] == '.') {
530 double fval = strtod(buf, &end);
531 fval *= pow(2, str2shift(end));
532 if (fval > UINT64_MAX) {
533 (void) fprintf(stderr, "ztest: value too large: %s\n",
537 val = (uint64_t)fval;
539 int shift = str2shift(end);
540 if (shift >= 64 || (val << shift) >> shift != val) {
541 (void) fprintf(stderr, "ztest: value too large: %s\n",
551 usage(boolean_t requested)
553 const ztest_shared_opts_t *zo = &ztest_opts_defaults;
555 char nice_vdev_size[10];
556 char nice_gang_bang[10];
557 FILE *fp = requested ? stdout : stderr;
559 nicenum(zo->zo_vdev_size, nice_vdev_size);
560 nicenum(zo->zo_metaslab_gang_bang, nice_gang_bang);
562 (void) fprintf(fp, "Usage: %s\n"
563 "\t[-v vdevs (default: %llu)]\n"
564 "\t[-s size_of_each_vdev (default: %s)]\n"
565 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
566 "\t[-m mirror_copies (default: %d)]\n"
567 "\t[-r raidz_disks (default: %d)]\n"
568 "\t[-R raidz_parity (default: %d)]\n"
569 "\t[-d datasets (default: %d)]\n"
570 "\t[-t threads (default: %d)]\n"
571 "\t[-g gang_block_threshold (default: %s)]\n"
572 "\t[-i init_count (default: %d)] initialize pool i times\n"
573 "\t[-k kill_percentage (default: %llu%%)]\n"
574 "\t[-p pool_name (default: %s)]\n"
575 "\t[-f dir (default: %s)] file directory for vdev files\n"
576 "\t[-V] verbose (use multiple times for ever more blather)\n"
577 "\t[-E] use existing pool instead of creating new one\n"
578 "\t[-T time (default: %llu sec)] total run time\n"
579 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
580 "\t[-P passtime (default: %llu sec)] time per pass\n"
581 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
582 "\t[-h] (print help)\n"
585 (u_longlong_t)zo->zo_vdevs, /* -v */
586 nice_vdev_size, /* -s */
587 zo->zo_ashift, /* -a */
588 zo->zo_mirrors, /* -m */
589 zo->zo_raidz, /* -r */
590 zo->zo_raidz_parity, /* -R */
591 zo->zo_datasets, /* -d */
592 zo->zo_threads, /* -t */
593 nice_gang_bang, /* -g */
594 zo->zo_init, /* -i */
595 (u_longlong_t)zo->zo_killrate, /* -k */
596 zo->zo_pool, /* -p */
598 (u_longlong_t)zo->zo_time, /* -T */
599 (u_longlong_t)zo->zo_maxloops, /* -F */
600 (u_longlong_t)zo->zo_passtime);
601 exit(requested ? 0 : 1);
605 process_options(int argc, char **argv)
608 ztest_shared_opts_t *zo = &ztest_opts;
612 char altdir[MAXNAMELEN] = { 0 };
614 bcopy(&ztest_opts_defaults, zo, sizeof (*zo));
616 while ((opt = getopt(argc, argv,
617 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF) {
634 value = nicenumtoull(optarg);
638 zo->zo_vdevs = value;
641 zo->zo_vdev_size = MAX(SPA_MINDEVSIZE, value);
644 zo->zo_ashift = value;
647 zo->zo_mirrors = value;
650 zo->zo_raidz = MAX(1, value);
653 zo->zo_raidz_parity = MIN(MAX(value, 1), 3);
656 zo->zo_datasets = MAX(1, value);
659 zo->zo_threads = MAX(1, value);
662 zo->zo_metaslab_gang_bang = MAX(SPA_MINBLOCKSIZE << 1,
669 zo->zo_killrate = value;
672 (void) strlcpy(zo->zo_pool, optarg,
673 sizeof (zo->zo_pool));
676 path = realpath(optarg, NULL);
678 (void) fprintf(stderr, "error: %s: %s\n",
679 optarg, strerror(errno));
682 (void) strlcpy(zo->zo_dir, path,
683 sizeof (zo->zo_dir));
696 zo->zo_passtime = MAX(1, value);
699 zo->zo_maxloops = MAX(1, value);
702 (void) strlcpy(altdir, optarg, sizeof (altdir));
714 zo->zo_raidz_parity = MIN(zo->zo_raidz_parity, zo->zo_raidz - 1);
717 (zo->zo_vdevs > 0 ? zo->zo_time * NANOSEC / zo->zo_vdevs :
720 if (strlen(altdir) > 0) {
728 cmd = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
729 realaltdir = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
731 VERIFY(NULL != realpath(getexecname(), cmd));
732 if (0 != access(altdir, F_OK)) {
733 ztest_dump_core = B_FALSE;
734 fatal(B_TRUE, "invalid alternate ztest path: %s",
737 VERIFY(NULL != realpath(altdir, realaltdir));
740 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
741 * We want to extract <isa> to determine if we should use
742 * 32 or 64 bit binaries.
744 bin = strstr(cmd, "/usr/bin/");
745 ztest = strstr(bin, "/ztest");
747 isalen = ztest - isa;
748 (void) snprintf(zo->zo_alt_ztest, sizeof (zo->zo_alt_ztest),
749 "%s/usr/bin/%.*s/ztest", realaltdir, isalen, isa);
750 (void) snprintf(zo->zo_alt_libpath, sizeof (zo->zo_alt_libpath),
751 "%s/usr/lib/%.*s", realaltdir, isalen, isa);
753 if (0 != access(zo->zo_alt_ztest, X_OK)) {
754 ztest_dump_core = B_FALSE;
755 fatal(B_TRUE, "invalid alternate ztest: %s",
757 } else if (0 != access(zo->zo_alt_libpath, X_OK)) {
758 ztest_dump_core = B_FALSE;
759 fatal(B_TRUE, "invalid alternate lib directory %s",
763 umem_free(cmd, MAXPATHLEN);
764 umem_free(realaltdir, MAXPATHLEN);
769 ztest_kill(ztest_shared_t *zs)
771 zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(ztest_spa));
772 zs->zs_space = metaslab_class_get_space(spa_normal_class(ztest_spa));
775 * Before we kill off ztest, make sure that the config is updated.
776 * See comment above spa_config_sync().
778 mutex_enter(&spa_namespace_lock);
779 spa_config_sync(ztest_spa, B_FALSE, B_FALSE);
780 mutex_exit(&spa_namespace_lock);
782 zfs_dbgmsg_print(FTAG);
783 (void) kill(getpid(), SIGKILL);
787 ztest_random(uint64_t range)
791 ASSERT3S(ztest_fd_rand, >=, 0);
796 if (read(ztest_fd_rand, &r, sizeof (r)) != sizeof (r))
797 fatal(1, "short read from /dev/urandom");
804 ztest_record_enospc(const char *s)
806 ztest_shared->zs_enospc_count++;
810 ztest_get_ashift(void)
812 if (ztest_opts.zo_ashift == 0)
813 return (SPA_MINBLOCKSHIFT + ztest_random(5));
814 return (ztest_opts.zo_ashift);
818 make_vdev_file(char *path, char *aux, char *pool, size_t size, uint64_t ashift)
820 char pathbuf[MAXPATHLEN];
825 ashift = ztest_get_ashift();
831 vdev = ztest_shared->zs_vdev_aux;
832 (void) snprintf(path, sizeof (pathbuf),
833 ztest_aux_template, ztest_opts.zo_dir,
834 pool == NULL ? ztest_opts.zo_pool : pool,
837 vdev = ztest_shared->zs_vdev_next_leaf++;
838 (void) snprintf(path, sizeof (pathbuf),
839 ztest_dev_template, ztest_opts.zo_dir,
840 pool == NULL ? ztest_opts.zo_pool : pool, vdev);
845 int fd = open(path, O_RDWR | O_CREAT | O_TRUNC, 0666);
847 fatal(1, "can't open %s", path);
848 if (ftruncate(fd, size) != 0)
849 fatal(1, "can't ftruncate %s", path);
853 VERIFY(nvlist_alloc(&file, NV_UNIQUE_NAME, 0) == 0);
854 VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_TYPE, VDEV_TYPE_FILE) == 0);
855 VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_PATH, path) == 0);
856 VERIFY(nvlist_add_uint64(file, ZPOOL_CONFIG_ASHIFT, ashift) == 0);
862 make_vdev_raidz(char *path, char *aux, char *pool, size_t size,
863 uint64_t ashift, int r)
865 nvlist_t *raidz, **child;
869 return (make_vdev_file(path, aux, pool, size, ashift));
870 child = umem_alloc(r * sizeof (nvlist_t *), UMEM_NOFAIL);
872 for (c = 0; c < r; c++)
873 child[c] = make_vdev_file(path, aux, pool, size, ashift);
875 VERIFY(nvlist_alloc(&raidz, NV_UNIQUE_NAME, 0) == 0);
876 VERIFY(nvlist_add_string(raidz, ZPOOL_CONFIG_TYPE,
877 VDEV_TYPE_RAIDZ) == 0);
878 VERIFY(nvlist_add_uint64(raidz, ZPOOL_CONFIG_NPARITY,
879 ztest_opts.zo_raidz_parity) == 0);
880 VERIFY(nvlist_add_nvlist_array(raidz, ZPOOL_CONFIG_CHILDREN,
883 for (c = 0; c < r; c++)
884 nvlist_free(child[c]);
886 umem_free(child, r * sizeof (nvlist_t *));
892 make_vdev_mirror(char *path, char *aux, char *pool, size_t size,
893 uint64_t ashift, int r, int m)
895 nvlist_t *mirror, **child;
899 return (make_vdev_raidz(path, aux, pool, size, ashift, r));
901 child = umem_alloc(m * sizeof (nvlist_t *), UMEM_NOFAIL);
903 for (c = 0; c < m; c++)
904 child[c] = make_vdev_raidz(path, aux, pool, size, ashift, r);
906 VERIFY(nvlist_alloc(&mirror, NV_UNIQUE_NAME, 0) == 0);
907 VERIFY(nvlist_add_string(mirror, ZPOOL_CONFIG_TYPE,
908 VDEV_TYPE_MIRROR) == 0);
909 VERIFY(nvlist_add_nvlist_array(mirror, ZPOOL_CONFIG_CHILDREN,
912 for (c = 0; c < m; c++)
913 nvlist_free(child[c]);
915 umem_free(child, m * sizeof (nvlist_t *));
921 make_vdev_root(char *path, char *aux, char *pool, size_t size, uint64_t ashift,
922 int log, int r, int m, int t)
924 nvlist_t *root, **child;
929 child = umem_alloc(t * sizeof (nvlist_t *), UMEM_NOFAIL);
931 for (c = 0; c < t; c++) {
932 child[c] = make_vdev_mirror(path, aux, pool, size, ashift,
934 VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
938 VERIFY(nvlist_alloc(&root, NV_UNIQUE_NAME, 0) == 0);
939 VERIFY(nvlist_add_string(root, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) == 0);
940 VERIFY(nvlist_add_nvlist_array(root, aux ? aux : ZPOOL_CONFIG_CHILDREN,
943 for (c = 0; c < t; c++)
944 nvlist_free(child[c]);
946 umem_free(child, t * sizeof (nvlist_t *));
952 * Find a random spa version. Returns back a random spa version in the
953 * range [initial_version, SPA_VERSION_FEATURES].
956 ztest_random_spa_version(uint64_t initial_version)
958 uint64_t version = initial_version;
960 if (version <= SPA_VERSION_BEFORE_FEATURES) {
962 ztest_random(SPA_VERSION_BEFORE_FEATURES - version + 1);
965 if (version > SPA_VERSION_BEFORE_FEATURES)
966 version = SPA_VERSION_FEATURES;
968 ASSERT(SPA_VERSION_IS_SUPPORTED(version));
973 * Find the largest ashift used
976 ztest_spa_get_ashift() {
978 uint64_t ashift = SPA_MINBLOCKSHIFT;
979 vdev_t *rvd = ztest_spa->spa_root_vdev;
981 for (i = 0; i < rvd->vdev_children; i++) {
982 ashift = MAX(ashift, rvd->vdev_child[i]->vdev_ashift);
988 ztest_random_blocksize(void)
990 // Choose a block size >= the ashift.
991 uint64_t block_shift =
992 ztest_random(SPA_MAXBLOCKSHIFT - ztest_spa_get_ashift() + 1);
993 return (1 << (SPA_MINBLOCKSHIFT + block_shift));
997 ztest_random_ibshift(void)
999 return (DN_MIN_INDBLKSHIFT +
1000 ztest_random(DN_MAX_INDBLKSHIFT - DN_MIN_INDBLKSHIFT + 1));
1004 ztest_random_vdev_top(spa_t *spa, boolean_t log_ok)
1007 vdev_t *rvd = spa->spa_root_vdev;
1010 ASSERT(spa_config_held(spa, SCL_ALL, RW_READER) != 0);
1013 top = ztest_random(rvd->vdev_children);
1014 tvd = rvd->vdev_child[top];
1015 } while (tvd->vdev_ishole || (tvd->vdev_islog && !log_ok) ||
1016 tvd->vdev_mg == NULL || tvd->vdev_mg->mg_class == NULL);
1022 ztest_random_dsl_prop(zfs_prop_t prop)
1027 value = zfs_prop_random_value(prop, ztest_random(-1ULL));
1028 } while (prop == ZFS_PROP_CHECKSUM && value == ZIO_CHECKSUM_OFF);
1034 ztest_dsl_prop_set_uint64(char *osname, zfs_prop_t prop, uint64_t value,
1037 const char *propname = zfs_prop_to_name(prop);
1038 const char *valname;
1039 char setpoint[MAXPATHLEN];
1043 error = dsl_prop_set_int(osname, propname,
1044 (inherit ? ZPROP_SRC_NONE : ZPROP_SRC_LOCAL), value);
1046 if (error == ENOSPC) {
1047 ztest_record_enospc(FTAG);
1052 VERIFY0(dsl_prop_get_integer(osname, propname, &curval, setpoint));
1054 if (ztest_opts.zo_verbose >= 6) {
1055 VERIFY(zfs_prop_index_to_string(prop, curval, &valname) == 0);
1056 (void) printf("%s %s = %s at '%s'\n",
1057 osname, propname, valname, setpoint);
1064 ztest_spa_prop_set_uint64(zpool_prop_t prop, uint64_t value)
1066 spa_t *spa = ztest_spa;
1067 nvlist_t *props = NULL;
1070 VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0);
1071 VERIFY(nvlist_add_uint64(props, zpool_prop_to_name(prop), value) == 0);
1073 error = spa_prop_set(spa, props);
1077 if (error == ENOSPC) {
1078 ztest_record_enospc(FTAG);
1087 ztest_rll_init(rll_t *rll)
1089 rll->rll_writer = NULL;
1090 rll->rll_readers = 0;
1091 VERIFY(_mutex_init(&rll->rll_lock, USYNC_THREAD, NULL) == 0);
1092 VERIFY(cond_init(&rll->rll_cv, USYNC_THREAD, NULL) == 0);
1096 ztest_rll_destroy(rll_t *rll)
1098 ASSERT(rll->rll_writer == NULL);
1099 ASSERT(rll->rll_readers == 0);
1100 VERIFY(_mutex_destroy(&rll->rll_lock) == 0);
1101 VERIFY(cond_destroy(&rll->rll_cv) == 0);
1105 ztest_rll_lock(rll_t *rll, rl_type_t type)
1107 VERIFY(mutex_lock(&rll->rll_lock) == 0);
1109 if (type == RL_READER) {
1110 while (rll->rll_writer != NULL)
1111 (void) cond_wait(&rll->rll_cv, &rll->rll_lock);
1114 while (rll->rll_writer != NULL || rll->rll_readers)
1115 (void) cond_wait(&rll->rll_cv, &rll->rll_lock);
1116 rll->rll_writer = curthread;
1119 VERIFY(mutex_unlock(&rll->rll_lock) == 0);
1123 ztest_rll_unlock(rll_t *rll)
1125 VERIFY(mutex_lock(&rll->rll_lock) == 0);
1127 if (rll->rll_writer) {
1128 ASSERT(rll->rll_readers == 0);
1129 rll->rll_writer = NULL;
1131 ASSERT(rll->rll_readers != 0);
1132 ASSERT(rll->rll_writer == NULL);
1136 if (rll->rll_writer == NULL && rll->rll_readers == 0)
1137 VERIFY(cond_broadcast(&rll->rll_cv) == 0);
1139 VERIFY(mutex_unlock(&rll->rll_lock) == 0);
1143 ztest_object_lock(ztest_ds_t *zd, uint64_t object, rl_type_t type)
1145 rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)];
1147 ztest_rll_lock(rll, type);
1151 ztest_object_unlock(ztest_ds_t *zd, uint64_t object)
1153 rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)];
1155 ztest_rll_unlock(rll);
1159 ztest_range_lock(ztest_ds_t *zd, uint64_t object, uint64_t offset,
1160 uint64_t size, rl_type_t type)
1162 uint64_t hash = object ^ (offset % (ZTEST_RANGE_LOCKS + 1));
1163 rll_t *rll = &zd->zd_range_lock[hash & (ZTEST_RANGE_LOCKS - 1)];
1166 rl = umem_alloc(sizeof (*rl), UMEM_NOFAIL);
1167 rl->rl_object = object;
1168 rl->rl_offset = offset;
1172 ztest_rll_lock(rll, type);
1178 ztest_range_unlock(rl_t *rl)
1180 rll_t *rll = rl->rl_lock;
1182 ztest_rll_unlock(rll);
1184 umem_free(rl, sizeof (*rl));
1188 ztest_zd_init(ztest_ds_t *zd, ztest_shared_ds_t *szd, objset_t *os)
1191 zd->zd_zilog = dmu_objset_zil(os);
1192 zd->zd_shared = szd;
1193 dmu_objset_name(os, zd->zd_name);
1195 if (zd->zd_shared != NULL)
1196 zd->zd_shared->zd_seq = 0;
1198 VERIFY(rwlock_init(&zd->zd_zilog_lock, USYNC_THREAD, NULL) == 0);
1199 VERIFY(_mutex_init(&zd->zd_dirobj_lock, USYNC_THREAD, NULL) == 0);
1201 for (int l = 0; l < ZTEST_OBJECT_LOCKS; l++)
1202 ztest_rll_init(&zd->zd_object_lock[l]);
1204 for (int l = 0; l < ZTEST_RANGE_LOCKS; l++)
1205 ztest_rll_init(&zd->zd_range_lock[l]);
1209 ztest_zd_fini(ztest_ds_t *zd)
1211 VERIFY(_mutex_destroy(&zd->zd_dirobj_lock) == 0);
1213 for (int l = 0; l < ZTEST_OBJECT_LOCKS; l++)
1214 ztest_rll_destroy(&zd->zd_object_lock[l]);
1216 for (int l = 0; l < ZTEST_RANGE_LOCKS; l++)
1217 ztest_rll_destroy(&zd->zd_range_lock[l]);
1220 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1223 ztest_tx_assign(dmu_tx_t *tx, uint64_t txg_how, const char *tag)
1229 * Attempt to assign tx to some transaction group.
1231 error = dmu_tx_assign(tx, txg_how);
1233 if (error == ERESTART) {
1234 ASSERT(txg_how == TXG_NOWAIT);
1237 ASSERT3U(error, ==, ENOSPC);
1238 ztest_record_enospc(tag);
1243 txg = dmu_tx_get_txg(tx);
1249 ztest_pattern_set(void *buf, uint64_t size, uint64_t value)
1252 uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size);
1259 ztest_pattern_match(void *buf, uint64_t size, uint64_t value)
1262 uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size);
1266 diff |= (value - *ip++);
1272 ztest_bt_generate(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
1273 uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg)
1275 bt->bt_magic = BT_MAGIC;
1276 bt->bt_objset = dmu_objset_id(os);
1277 bt->bt_object = object;
1278 bt->bt_offset = offset;
1281 bt->bt_crtxg = crtxg;
1285 ztest_bt_verify(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
1286 uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg)
1288 ASSERT3U(bt->bt_magic, ==, BT_MAGIC);
1289 ASSERT3U(bt->bt_objset, ==, dmu_objset_id(os));
1290 ASSERT3U(bt->bt_object, ==, object);
1291 ASSERT3U(bt->bt_offset, ==, offset);
1292 ASSERT3U(bt->bt_gen, <=, gen);
1293 ASSERT3U(bt->bt_txg, <=, txg);
1294 ASSERT3U(bt->bt_crtxg, ==, crtxg);
1297 static ztest_block_tag_t *
1298 ztest_bt_bonus(dmu_buf_t *db)
1300 dmu_object_info_t doi;
1301 ztest_block_tag_t *bt;
1303 dmu_object_info_from_db(db, &doi);
1304 ASSERT3U(doi.doi_bonus_size, <=, db->db_size);
1305 ASSERT3U(doi.doi_bonus_size, >=, sizeof (*bt));
1306 bt = (void *)((char *)db->db_data + doi.doi_bonus_size - sizeof (*bt));
1315 #define lrz_type lr_mode
1316 #define lrz_blocksize lr_uid
1317 #define lrz_ibshift lr_gid
1318 #define lrz_bonustype lr_rdev
1319 #define lrz_bonuslen lr_crtime[1]
1322 ztest_log_create(ztest_ds_t *zd, dmu_tx_t *tx, lr_create_t *lr)
1324 char *name = (void *)(lr + 1); /* name follows lr */
1325 size_t namesize = strlen(name) + 1;
1328 if (zil_replaying(zd->zd_zilog, tx))
1331 itx = zil_itx_create(TX_CREATE, sizeof (*lr) + namesize);
1332 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1333 sizeof (*lr) + namesize - sizeof (lr_t));
1335 zil_itx_assign(zd->zd_zilog, itx, tx);
1339 ztest_log_remove(ztest_ds_t *zd, dmu_tx_t *tx, lr_remove_t *lr, uint64_t object)
1341 char *name = (void *)(lr + 1); /* name follows lr */
1342 size_t namesize = strlen(name) + 1;
1345 if (zil_replaying(zd->zd_zilog, tx))
1348 itx = zil_itx_create(TX_REMOVE, sizeof (*lr) + namesize);
1349 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1350 sizeof (*lr) + namesize - sizeof (lr_t));
1352 itx->itx_oid = object;
1353 zil_itx_assign(zd->zd_zilog, itx, tx);
1357 ztest_log_write(ztest_ds_t *zd, dmu_tx_t *tx, lr_write_t *lr)
1360 itx_wr_state_t write_state = ztest_random(WR_NUM_STATES);
1362 if (zil_replaying(zd->zd_zilog, tx))
1365 if (lr->lr_length > ZIL_MAX_LOG_DATA)
1366 write_state = WR_INDIRECT;
1368 itx = zil_itx_create(TX_WRITE,
1369 sizeof (*lr) + (write_state == WR_COPIED ? lr->lr_length : 0));
1371 if (write_state == WR_COPIED &&
1372 dmu_read(zd->zd_os, lr->lr_foid, lr->lr_offset, lr->lr_length,
1373 ((lr_write_t *)&itx->itx_lr) + 1, DMU_READ_NO_PREFETCH) != 0) {
1374 zil_itx_destroy(itx);
1375 itx = zil_itx_create(TX_WRITE, sizeof (*lr));
1376 write_state = WR_NEED_COPY;
1378 itx->itx_private = zd;
1379 itx->itx_wr_state = write_state;
1380 itx->itx_sync = (ztest_random(8) == 0);
1381 itx->itx_sod += (write_state == WR_NEED_COPY ? lr->lr_length : 0);
1383 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1384 sizeof (*lr) - sizeof (lr_t));
1386 zil_itx_assign(zd->zd_zilog, itx, tx);
1390 ztest_log_truncate(ztest_ds_t *zd, dmu_tx_t *tx, lr_truncate_t *lr)
1394 if (zil_replaying(zd->zd_zilog, tx))
1397 itx = zil_itx_create(TX_TRUNCATE, sizeof (*lr));
1398 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1399 sizeof (*lr) - sizeof (lr_t));
1401 itx->itx_sync = B_FALSE;
1402 zil_itx_assign(zd->zd_zilog, itx, tx);
1406 ztest_log_setattr(ztest_ds_t *zd, dmu_tx_t *tx, lr_setattr_t *lr)
1410 if (zil_replaying(zd->zd_zilog, tx))
1413 itx = zil_itx_create(TX_SETATTR, sizeof (*lr));
1414 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1415 sizeof (*lr) - sizeof (lr_t));
1417 itx->itx_sync = B_FALSE;
1418 zil_itx_assign(zd->zd_zilog, itx, tx);
1425 ztest_replay_create(ztest_ds_t *zd, lr_create_t *lr, boolean_t byteswap)
1427 char *name = (void *)(lr + 1); /* name follows lr */
1428 objset_t *os = zd->zd_os;
1429 ztest_block_tag_t *bbt;
1436 byteswap_uint64_array(lr, sizeof (*lr));
1438 ASSERT(lr->lr_doid == ZTEST_DIROBJ);
1439 ASSERT(name[0] != '\0');
1441 tx = dmu_tx_create(os);
1443 dmu_tx_hold_zap(tx, lr->lr_doid, B_TRUE, name);
1445 if (lr->lrz_type == DMU_OT_ZAP_OTHER) {
1446 dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL);
1448 dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT);
1451 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1455 ASSERT(dmu_objset_zil(os)->zl_replay == !!lr->lr_foid);
1457 if (lr->lrz_type == DMU_OT_ZAP_OTHER) {
1458 if (lr->lr_foid == 0) {
1459 lr->lr_foid = zap_create(os,
1460 lr->lrz_type, lr->lrz_bonustype,
1461 lr->lrz_bonuslen, tx);
1463 error = zap_create_claim(os, lr->lr_foid,
1464 lr->lrz_type, lr->lrz_bonustype,
1465 lr->lrz_bonuslen, tx);
1468 if (lr->lr_foid == 0) {
1469 lr->lr_foid = dmu_object_alloc(os,
1470 lr->lrz_type, 0, lr->lrz_bonustype,
1471 lr->lrz_bonuslen, tx);
1473 error = dmu_object_claim(os, lr->lr_foid,
1474 lr->lrz_type, 0, lr->lrz_bonustype,
1475 lr->lrz_bonuslen, tx);
1480 ASSERT3U(error, ==, EEXIST);
1481 ASSERT(zd->zd_zilog->zl_replay);
1486 ASSERT(lr->lr_foid != 0);
1488 if (lr->lrz_type != DMU_OT_ZAP_OTHER)
1489 VERIFY3U(0, ==, dmu_object_set_blocksize(os, lr->lr_foid,
1490 lr->lrz_blocksize, lr->lrz_ibshift, tx));
1492 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1493 bbt = ztest_bt_bonus(db);
1494 dmu_buf_will_dirty(db, tx);
1495 ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_gen, txg, txg);
1496 dmu_buf_rele(db, FTAG);
1498 VERIFY3U(0, ==, zap_add(os, lr->lr_doid, name, sizeof (uint64_t), 1,
1501 (void) ztest_log_create(zd, tx, lr);
1509 ztest_replay_remove(ztest_ds_t *zd, lr_remove_t *lr, boolean_t byteswap)
1511 char *name = (void *)(lr + 1); /* name follows lr */
1512 objset_t *os = zd->zd_os;
1513 dmu_object_info_t doi;
1515 uint64_t object, txg;
1518 byteswap_uint64_array(lr, sizeof (*lr));
1520 ASSERT(lr->lr_doid == ZTEST_DIROBJ);
1521 ASSERT(name[0] != '\0');
1524 zap_lookup(os, lr->lr_doid, name, sizeof (object), 1, &object));
1525 ASSERT(object != 0);
1527 ztest_object_lock(zd, object, RL_WRITER);
1529 VERIFY3U(0, ==, dmu_object_info(os, object, &doi));
1531 tx = dmu_tx_create(os);
1533 dmu_tx_hold_zap(tx, lr->lr_doid, B_FALSE, name);
1534 dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END);
1536 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1538 ztest_object_unlock(zd, object);
1542 if (doi.doi_type == DMU_OT_ZAP_OTHER) {
1543 VERIFY3U(0, ==, zap_destroy(os, object, tx));
1545 VERIFY3U(0, ==, dmu_object_free(os, object, tx));
1548 VERIFY3U(0, ==, zap_remove(os, lr->lr_doid, name, tx));
1550 (void) ztest_log_remove(zd, tx, lr, object);
1554 ztest_object_unlock(zd, object);
1560 ztest_replay_write(ztest_ds_t *zd, lr_write_t *lr, boolean_t byteswap)
1562 objset_t *os = zd->zd_os;
1563 void *data = lr + 1; /* data follows lr */
1564 uint64_t offset, length;
1565 ztest_block_tag_t *bt = data;
1566 ztest_block_tag_t *bbt;
1567 uint64_t gen, txg, lrtxg, crtxg;
1568 dmu_object_info_t doi;
1571 arc_buf_t *abuf = NULL;
1575 byteswap_uint64_array(lr, sizeof (*lr));
1577 offset = lr->lr_offset;
1578 length = lr->lr_length;
1580 /* If it's a dmu_sync() block, write the whole block */
1581 if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
1582 uint64_t blocksize = BP_GET_LSIZE(&lr->lr_blkptr);
1583 if (length < blocksize) {
1584 offset -= offset % blocksize;
1589 if (bt->bt_magic == BSWAP_64(BT_MAGIC))
1590 byteswap_uint64_array(bt, sizeof (*bt));
1592 if (bt->bt_magic != BT_MAGIC)
1595 ztest_object_lock(zd, lr->lr_foid, RL_READER);
1596 rl = ztest_range_lock(zd, lr->lr_foid, offset, length, RL_WRITER);
1598 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1600 dmu_object_info_from_db(db, &doi);
1602 bbt = ztest_bt_bonus(db);
1603 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1605 crtxg = bbt->bt_crtxg;
1606 lrtxg = lr->lr_common.lrc_txg;
1608 tx = dmu_tx_create(os);
1610 dmu_tx_hold_write(tx, lr->lr_foid, offset, length);
1612 if (ztest_random(8) == 0 && length == doi.doi_data_block_size &&
1613 P2PHASE(offset, length) == 0)
1614 abuf = dmu_request_arcbuf(db, length);
1616 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1619 dmu_return_arcbuf(abuf);
1620 dmu_buf_rele(db, FTAG);
1621 ztest_range_unlock(rl);
1622 ztest_object_unlock(zd, lr->lr_foid);
1628 * Usually, verify the old data before writing new data --
1629 * but not always, because we also want to verify correct
1630 * behavior when the data was not recently read into cache.
1632 ASSERT(offset % doi.doi_data_block_size == 0);
1633 if (ztest_random(4) != 0) {
1634 int prefetch = ztest_random(2) ?
1635 DMU_READ_PREFETCH : DMU_READ_NO_PREFETCH;
1636 ztest_block_tag_t rbt;
1638 VERIFY(dmu_read(os, lr->lr_foid, offset,
1639 sizeof (rbt), &rbt, prefetch) == 0);
1640 if (rbt.bt_magic == BT_MAGIC) {
1641 ztest_bt_verify(&rbt, os, lr->lr_foid,
1642 offset, gen, txg, crtxg);
1647 * Writes can appear to be newer than the bonus buffer because
1648 * the ztest_get_data() callback does a dmu_read() of the
1649 * open-context data, which may be different than the data
1650 * as it was when the write was generated.
1652 if (zd->zd_zilog->zl_replay) {
1653 ztest_bt_verify(bt, os, lr->lr_foid, offset,
1654 MAX(gen, bt->bt_gen), MAX(txg, lrtxg),
1659 * Set the bt's gen/txg to the bonus buffer's gen/txg
1660 * so that all of the usual ASSERTs will work.
1662 ztest_bt_generate(bt, os, lr->lr_foid, offset, gen, txg, crtxg);
1666 dmu_write(os, lr->lr_foid, offset, length, data, tx);
1668 bcopy(data, abuf->b_data, length);
1669 dmu_assign_arcbuf(db, offset, abuf, tx);
1672 (void) ztest_log_write(zd, tx, lr);
1674 dmu_buf_rele(db, FTAG);
1678 ztest_range_unlock(rl);
1679 ztest_object_unlock(zd, lr->lr_foid);
1685 ztest_replay_truncate(ztest_ds_t *zd, lr_truncate_t *lr, boolean_t byteswap)
1687 objset_t *os = zd->zd_os;
1693 byteswap_uint64_array(lr, sizeof (*lr));
1695 ztest_object_lock(zd, lr->lr_foid, RL_READER);
1696 rl = ztest_range_lock(zd, lr->lr_foid, lr->lr_offset, lr->lr_length,
1699 tx = dmu_tx_create(os);
1701 dmu_tx_hold_free(tx, lr->lr_foid, lr->lr_offset, lr->lr_length);
1703 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1705 ztest_range_unlock(rl);
1706 ztest_object_unlock(zd, lr->lr_foid);
1710 VERIFY(dmu_free_range(os, lr->lr_foid, lr->lr_offset,
1711 lr->lr_length, tx) == 0);
1713 (void) ztest_log_truncate(zd, tx, lr);
1717 ztest_range_unlock(rl);
1718 ztest_object_unlock(zd, lr->lr_foid);
1724 ztest_replay_setattr(ztest_ds_t *zd, lr_setattr_t *lr, boolean_t byteswap)
1726 objset_t *os = zd->zd_os;
1729 ztest_block_tag_t *bbt;
1730 uint64_t txg, lrtxg, crtxg;
1733 byteswap_uint64_array(lr, sizeof (*lr));
1735 ztest_object_lock(zd, lr->lr_foid, RL_WRITER);
1737 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1739 tx = dmu_tx_create(os);
1740 dmu_tx_hold_bonus(tx, lr->lr_foid);
1742 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1744 dmu_buf_rele(db, FTAG);
1745 ztest_object_unlock(zd, lr->lr_foid);
1749 bbt = ztest_bt_bonus(db);
1750 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1751 crtxg = bbt->bt_crtxg;
1752 lrtxg = lr->lr_common.lrc_txg;
1754 if (zd->zd_zilog->zl_replay) {
1755 ASSERT(lr->lr_size != 0);
1756 ASSERT(lr->lr_mode != 0);
1760 * Randomly change the size and increment the generation.
1762 lr->lr_size = (ztest_random(db->db_size / sizeof (*bbt)) + 1) *
1764 lr->lr_mode = bbt->bt_gen + 1;
1769 * Verify that the current bonus buffer is not newer than our txg.
1771 ztest_bt_verify(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode,
1772 MAX(txg, lrtxg), crtxg);
1774 dmu_buf_will_dirty(db, tx);
1776 ASSERT3U(lr->lr_size, >=, sizeof (*bbt));
1777 ASSERT3U(lr->lr_size, <=, db->db_size);
1778 VERIFY0(dmu_set_bonus(db, lr->lr_size, tx));
1779 bbt = ztest_bt_bonus(db);
1781 ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode, txg, crtxg);
1783 dmu_buf_rele(db, FTAG);
1785 (void) ztest_log_setattr(zd, tx, lr);
1789 ztest_object_unlock(zd, lr->lr_foid);
1794 zil_replay_func_t *ztest_replay_vector[TX_MAX_TYPE] = {
1795 NULL, /* 0 no such transaction type */
1796 ztest_replay_create, /* TX_CREATE */
1797 NULL, /* TX_MKDIR */
1798 NULL, /* TX_MKXATTR */
1799 NULL, /* TX_SYMLINK */
1800 ztest_replay_remove, /* TX_REMOVE */
1801 NULL, /* TX_RMDIR */
1803 NULL, /* TX_RENAME */
1804 ztest_replay_write, /* TX_WRITE */
1805 ztest_replay_truncate, /* TX_TRUNCATE */
1806 ztest_replay_setattr, /* TX_SETATTR */
1808 NULL, /* TX_CREATE_ACL */
1809 NULL, /* TX_CREATE_ATTR */
1810 NULL, /* TX_CREATE_ACL_ATTR */
1811 NULL, /* TX_MKDIR_ACL */
1812 NULL, /* TX_MKDIR_ATTR */
1813 NULL, /* TX_MKDIR_ACL_ATTR */
1814 NULL, /* TX_WRITE2 */
1818 * ZIL get_data callbacks
1822 ztest_get_done(zgd_t *zgd, int error)
1824 ztest_ds_t *zd = zgd->zgd_private;
1825 uint64_t object = zgd->zgd_rl->rl_object;
1828 dmu_buf_rele(zgd->zgd_db, zgd);
1830 ztest_range_unlock(zgd->zgd_rl);
1831 ztest_object_unlock(zd, object);
1833 if (error == 0 && zgd->zgd_bp)
1834 zil_add_block(zgd->zgd_zilog, zgd->zgd_bp);
1836 umem_free(zgd, sizeof (*zgd));
1840 ztest_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio)
1842 ztest_ds_t *zd = arg;
1843 objset_t *os = zd->zd_os;
1844 uint64_t object = lr->lr_foid;
1845 uint64_t offset = lr->lr_offset;
1846 uint64_t size = lr->lr_length;
1847 blkptr_t *bp = &lr->lr_blkptr;
1848 uint64_t txg = lr->lr_common.lrc_txg;
1850 dmu_object_info_t doi;
1855 ztest_object_lock(zd, object, RL_READER);
1856 error = dmu_bonus_hold(os, object, FTAG, &db);
1858 ztest_object_unlock(zd, object);
1862 crtxg = ztest_bt_bonus(db)->bt_crtxg;
1864 if (crtxg == 0 || crtxg > txg) {
1865 dmu_buf_rele(db, FTAG);
1866 ztest_object_unlock(zd, object);
1870 dmu_object_info_from_db(db, &doi);
1871 dmu_buf_rele(db, FTAG);
1874 zgd = umem_zalloc(sizeof (*zgd), UMEM_NOFAIL);
1875 zgd->zgd_zilog = zd->zd_zilog;
1876 zgd->zgd_private = zd;
1878 if (buf != NULL) { /* immediate write */
1879 zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
1882 error = dmu_read(os, object, offset, size, buf,
1883 DMU_READ_NO_PREFETCH);
1886 size = doi.doi_data_block_size;
1888 offset = P2ALIGN(offset, size);
1890 ASSERT(offset < size);
1894 zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
1897 error = dmu_buf_hold(os, object, offset, zgd, &db,
1898 DMU_READ_NO_PREFETCH);
1901 blkptr_t *obp = dmu_buf_get_blkptr(db);
1903 ASSERT(BP_IS_HOLE(bp));
1910 ASSERT(db->db_offset == offset);
1911 ASSERT(db->db_size == size);
1913 error = dmu_sync(zio, lr->lr_common.lrc_txg,
1914 ztest_get_done, zgd);
1921 ztest_get_done(zgd, error);
1927 ztest_lr_alloc(size_t lrsize, char *name)
1930 size_t namesize = name ? strlen(name) + 1 : 0;
1932 lr = umem_zalloc(lrsize + namesize, UMEM_NOFAIL);
1935 bcopy(name, lr + lrsize, namesize);
1941 ztest_lr_free(void *lr, size_t lrsize, char *name)
1943 size_t namesize = name ? strlen(name) + 1 : 0;
1945 umem_free(lr, lrsize + namesize);
1949 * Lookup a bunch of objects. Returns the number of objects not found.
1952 ztest_lookup(ztest_ds_t *zd, ztest_od_t *od, int count)
1957 ASSERT(_mutex_held(&zd->zd_dirobj_lock));
1959 for (int i = 0; i < count; i++, od++) {
1961 error = zap_lookup(zd->zd_os, od->od_dir, od->od_name,
1962 sizeof (uint64_t), 1, &od->od_object);
1964 ASSERT(error == ENOENT);
1965 ASSERT(od->od_object == 0);
1969 ztest_block_tag_t *bbt;
1970 dmu_object_info_t doi;
1972 ASSERT(od->od_object != 0);
1973 ASSERT(missing == 0); /* there should be no gaps */
1975 ztest_object_lock(zd, od->od_object, RL_READER);
1976 VERIFY3U(0, ==, dmu_bonus_hold(zd->zd_os,
1977 od->od_object, FTAG, &db));
1978 dmu_object_info_from_db(db, &doi);
1979 bbt = ztest_bt_bonus(db);
1980 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1981 od->od_type = doi.doi_type;
1982 od->od_blocksize = doi.doi_data_block_size;
1983 od->od_gen = bbt->bt_gen;
1984 dmu_buf_rele(db, FTAG);
1985 ztest_object_unlock(zd, od->od_object);
1993 ztest_create(ztest_ds_t *zd, ztest_od_t *od, int count)
1997 ASSERT(_mutex_held(&zd->zd_dirobj_lock));
1999 for (int i = 0; i < count; i++, od++) {
2006 lr_create_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
2008 lr->lr_doid = od->od_dir;
2009 lr->lr_foid = 0; /* 0 to allocate, > 0 to claim */
2010 lr->lrz_type = od->od_crtype;
2011 lr->lrz_blocksize = od->od_crblocksize;
2012 lr->lrz_ibshift = ztest_random_ibshift();
2013 lr->lrz_bonustype = DMU_OT_UINT64_OTHER;
2014 lr->lrz_bonuslen = dmu_bonus_max();
2015 lr->lr_gen = od->od_crgen;
2016 lr->lr_crtime[0] = time(NULL);
2018 if (ztest_replay_create(zd, lr, B_FALSE) != 0) {
2019 ASSERT(missing == 0);
2023 od->od_object = lr->lr_foid;
2024 od->od_type = od->od_crtype;
2025 od->od_blocksize = od->od_crblocksize;
2026 od->od_gen = od->od_crgen;
2027 ASSERT(od->od_object != 0);
2030 ztest_lr_free(lr, sizeof (*lr), od->od_name);
2037 ztest_remove(ztest_ds_t *zd, ztest_od_t *od, int count)
2042 ASSERT(_mutex_held(&zd->zd_dirobj_lock));
2046 for (int i = count - 1; i >= 0; i--, od--) {
2053 * No object was found.
2055 if (od->od_object == 0)
2058 lr_remove_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
2060 lr->lr_doid = od->od_dir;
2062 if ((error = ztest_replay_remove(zd, lr, B_FALSE)) != 0) {
2063 ASSERT3U(error, ==, ENOSPC);
2068 ztest_lr_free(lr, sizeof (*lr), od->od_name);
2075 ztest_write(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size,
2081 lr = ztest_lr_alloc(sizeof (*lr) + size, NULL);
2083 lr->lr_foid = object;
2084 lr->lr_offset = offset;
2085 lr->lr_length = size;
2087 BP_ZERO(&lr->lr_blkptr);
2089 bcopy(data, lr + 1, size);
2091 error = ztest_replay_write(zd, lr, B_FALSE);
2093 ztest_lr_free(lr, sizeof (*lr) + size, NULL);
2099 ztest_truncate(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
2104 lr = ztest_lr_alloc(sizeof (*lr), NULL);
2106 lr->lr_foid = object;
2107 lr->lr_offset = offset;
2108 lr->lr_length = size;
2110 error = ztest_replay_truncate(zd, lr, B_FALSE);
2112 ztest_lr_free(lr, sizeof (*lr), NULL);
2118 ztest_setattr(ztest_ds_t *zd, uint64_t object)
2123 lr = ztest_lr_alloc(sizeof (*lr), NULL);
2125 lr->lr_foid = object;
2129 error = ztest_replay_setattr(zd, lr, B_FALSE);
2131 ztest_lr_free(lr, sizeof (*lr), NULL);
2137 ztest_prealloc(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
2139 objset_t *os = zd->zd_os;
2144 txg_wait_synced(dmu_objset_pool(os), 0);
2146 ztest_object_lock(zd, object, RL_READER);
2147 rl = ztest_range_lock(zd, object, offset, size, RL_WRITER);
2149 tx = dmu_tx_create(os);
2151 dmu_tx_hold_write(tx, object, offset, size);
2153 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
2156 dmu_prealloc(os, object, offset, size, tx);
2158 txg_wait_synced(dmu_objset_pool(os), txg);
2160 (void) dmu_free_long_range(os, object, offset, size);
2163 ztest_range_unlock(rl);
2164 ztest_object_unlock(zd, object);
2168 ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
2171 ztest_block_tag_t wbt;
2172 dmu_object_info_t doi;
2173 enum ztest_io_type io_type;
2177 VERIFY(dmu_object_info(zd->zd_os, object, &doi) == 0);
2178 blocksize = doi.doi_data_block_size;
2179 data = umem_alloc(blocksize, UMEM_NOFAIL);
2182 * Pick an i/o type at random, biased toward writing block tags.
2184 io_type = ztest_random(ZTEST_IO_TYPES);
2185 if (ztest_random(2) == 0)
2186 io_type = ZTEST_IO_WRITE_TAG;
2188 (void) rw_rdlock(&zd->zd_zilog_lock);
2192 case ZTEST_IO_WRITE_TAG:
2193 ztest_bt_generate(&wbt, zd->zd_os, object, offset, 0, 0, 0);
2194 (void) ztest_write(zd, object, offset, sizeof (wbt), &wbt);
2197 case ZTEST_IO_WRITE_PATTERN:
2198 (void) memset(data, 'a' + (object + offset) % 5, blocksize);
2199 if (ztest_random(2) == 0) {
2201 * Induce fletcher2 collisions to ensure that
2202 * zio_ddt_collision() detects and resolves them
2203 * when using fletcher2-verify for deduplication.
2205 ((uint64_t *)data)[0] ^= 1ULL << 63;
2206 ((uint64_t *)data)[4] ^= 1ULL << 63;
2208 (void) ztest_write(zd, object, offset, blocksize, data);
2211 case ZTEST_IO_WRITE_ZEROES:
2212 bzero(data, blocksize);
2213 (void) ztest_write(zd, object, offset, blocksize, data);
2216 case ZTEST_IO_TRUNCATE:
2217 (void) ztest_truncate(zd, object, offset, blocksize);
2220 case ZTEST_IO_SETATTR:
2221 (void) ztest_setattr(zd, object);
2224 case ZTEST_IO_REWRITE:
2225 (void) rw_rdlock(&ztest_name_lock);
2226 err = ztest_dsl_prop_set_uint64(zd->zd_name,
2227 ZFS_PROP_CHECKSUM, spa_dedup_checksum(ztest_spa),
2229 VERIFY(err == 0 || err == ENOSPC);
2230 err = ztest_dsl_prop_set_uint64(zd->zd_name,
2231 ZFS_PROP_COMPRESSION,
2232 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION),
2234 VERIFY(err == 0 || err == ENOSPC);
2235 (void) rw_unlock(&ztest_name_lock);
2237 VERIFY0(dmu_read(zd->zd_os, object, offset, blocksize, data,
2238 DMU_READ_NO_PREFETCH));
2240 (void) ztest_write(zd, object, offset, blocksize, data);
2244 (void) rw_unlock(&zd->zd_zilog_lock);
2246 umem_free(data, blocksize);
2250 * Initialize an object description template.
2253 ztest_od_init(ztest_od_t *od, uint64_t id, char *tag, uint64_t index,
2254 dmu_object_type_t type, uint64_t blocksize, uint64_t gen)
2256 od->od_dir = ZTEST_DIROBJ;
2259 od->od_crtype = type;
2260 od->od_crblocksize = blocksize ? blocksize : ztest_random_blocksize();
2263 od->od_type = DMU_OT_NONE;
2264 od->od_blocksize = 0;
2267 (void) snprintf(od->od_name, sizeof (od->od_name), "%s(%lld)[%llu]",
2268 tag, (int64_t)id, index);
2272 * Lookup or create the objects for a test using the od template.
2273 * If the objects do not all exist, or if 'remove' is specified,
2274 * remove any existing objects and create new ones. Otherwise,
2275 * use the existing objects.
2278 ztest_object_init(ztest_ds_t *zd, ztest_od_t *od, size_t size, boolean_t remove)
2280 int count = size / sizeof (*od);
2283 VERIFY(mutex_lock(&zd->zd_dirobj_lock) == 0);
2284 if ((ztest_lookup(zd, od, count) != 0 || remove) &&
2285 (ztest_remove(zd, od, count) != 0 ||
2286 ztest_create(zd, od, count) != 0))
2289 VERIFY(mutex_unlock(&zd->zd_dirobj_lock) == 0);
2296 ztest_zil_commit(ztest_ds_t *zd, uint64_t id)
2298 zilog_t *zilog = zd->zd_zilog;
2300 (void) rw_rdlock(&zd->zd_zilog_lock);
2302 zil_commit(zilog, ztest_random(ZTEST_OBJECTS));
2305 * Remember the committed values in zd, which is in parent/child
2306 * shared memory. If we die, the next iteration of ztest_run()
2307 * will verify that the log really does contain this record.
2309 mutex_enter(&zilog->zl_lock);
2310 ASSERT(zd->zd_shared != NULL);
2311 ASSERT3U(zd->zd_shared->zd_seq, <=, zilog->zl_commit_lr_seq);
2312 zd->zd_shared->zd_seq = zilog->zl_commit_lr_seq;
2313 mutex_exit(&zilog->zl_lock);
2315 (void) rw_unlock(&zd->zd_zilog_lock);
2319 * This function is designed to simulate the operations that occur during a
2320 * mount/unmount operation. We hold the dataset across these operations in an
2321 * attempt to expose any implicit assumptions about ZIL management.
2325 ztest_zil_remount(ztest_ds_t *zd, uint64_t id)
2327 objset_t *os = zd->zd_os;
2330 * We grab the zd_dirobj_lock to ensure that no other thread is
2331 * updating the zil (i.e. adding in-memory log records) and the
2332 * zd_zilog_lock to block any I/O.
2334 VERIFY0(mutex_lock(&zd->zd_dirobj_lock));
2335 (void) rw_wrlock(&zd->zd_zilog_lock);
2337 /* zfsvfs_teardown() */
2338 zil_close(zd->zd_zilog);
2340 /* zfsvfs_setup() */
2341 VERIFY(zil_open(os, ztest_get_data) == zd->zd_zilog);
2342 zil_replay(os, zd, ztest_replay_vector);
2344 (void) rw_unlock(&zd->zd_zilog_lock);
2345 VERIFY(mutex_unlock(&zd->zd_dirobj_lock) == 0);
2349 * Verify that we can't destroy an active pool, create an existing pool,
2350 * or create a pool with a bad vdev spec.
2354 ztest_spa_create_destroy(ztest_ds_t *zd, uint64_t id)
2356 ztest_shared_opts_t *zo = &ztest_opts;
2361 * Attempt to create using a bad file.
2363 nvroot = make_vdev_root("/dev/bogus", NULL, NULL, 0, 0, 0, 0, 0, 1);
2364 VERIFY3U(ENOENT, ==,
2365 spa_create("ztest_bad_file", nvroot, NULL, NULL));
2366 nvlist_free(nvroot);
2369 * Attempt to create using a bad mirror.
2371 nvroot = make_vdev_root("/dev/bogus", NULL, NULL, 0, 0, 0, 0, 2, 1);
2372 VERIFY3U(ENOENT, ==,
2373 spa_create("ztest_bad_mirror", nvroot, NULL, NULL));
2374 nvlist_free(nvroot);
2377 * Attempt to create an existing pool. It shouldn't matter
2378 * what's in the nvroot; we should fail with EEXIST.
2380 (void) rw_rdlock(&ztest_name_lock);
2381 nvroot = make_vdev_root("/dev/bogus", NULL, NULL, 0, 0, 0, 0, 0, 1);
2382 VERIFY3U(EEXIST, ==, spa_create(zo->zo_pool, nvroot, NULL, NULL));
2383 nvlist_free(nvroot);
2384 VERIFY3U(0, ==, spa_open(zo->zo_pool, &spa, FTAG));
2385 VERIFY3U(EBUSY, ==, spa_destroy(zo->zo_pool));
2386 spa_close(spa, FTAG);
2388 (void) rw_unlock(&ztest_name_lock);
2393 ztest_spa_upgrade(ztest_ds_t *zd, uint64_t id)
2396 uint64_t initial_version = SPA_VERSION_INITIAL;
2397 uint64_t version, newversion;
2398 nvlist_t *nvroot, *props;
2401 VERIFY0(mutex_lock(&ztest_vdev_lock));
2402 name = kmem_asprintf("%s_upgrade", ztest_opts.zo_pool);
2405 * Clean up from previous runs.
2407 (void) spa_destroy(name);
2409 nvroot = make_vdev_root(NULL, NULL, name, ztest_opts.zo_vdev_size, 0,
2410 0, ztest_opts.zo_raidz, ztest_opts.zo_mirrors, 1);
2413 * If we're configuring a RAIDZ device then make sure that the
2414 * the initial version is capable of supporting that feature.
2416 switch (ztest_opts.zo_raidz_parity) {
2419 initial_version = SPA_VERSION_INITIAL;
2422 initial_version = SPA_VERSION_RAIDZ2;
2425 initial_version = SPA_VERSION_RAIDZ3;
2430 * Create a pool with a spa version that can be upgraded. Pick
2431 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2434 version = ztest_random_spa_version(initial_version);
2435 } while (version > SPA_VERSION_BEFORE_FEATURES);
2437 props = fnvlist_alloc();
2438 fnvlist_add_uint64(props,
2439 zpool_prop_to_name(ZPOOL_PROP_VERSION), version);
2440 VERIFY0(spa_create(name, nvroot, props, NULL));
2441 fnvlist_free(nvroot);
2442 fnvlist_free(props);
2444 VERIFY0(spa_open(name, &spa, FTAG));
2445 VERIFY3U(spa_version(spa), ==, version);
2446 newversion = ztest_random_spa_version(version + 1);
2448 if (ztest_opts.zo_verbose >= 4) {
2449 (void) printf("upgrading spa version from %llu to %llu\n",
2450 (u_longlong_t)version, (u_longlong_t)newversion);
2453 spa_upgrade(spa, newversion);
2454 VERIFY3U(spa_version(spa), >, version);
2455 VERIFY3U(spa_version(spa), ==, fnvlist_lookup_uint64(spa->spa_config,
2456 zpool_prop_to_name(ZPOOL_PROP_VERSION)));
2457 spa_close(spa, FTAG);
2460 VERIFY0(mutex_unlock(&ztest_vdev_lock));
2464 vdev_lookup_by_path(vdev_t *vd, const char *path)
2468 if (vd->vdev_path != NULL && strcmp(path, vd->vdev_path) == 0)
2471 for (int c = 0; c < vd->vdev_children; c++)
2472 if ((mvd = vdev_lookup_by_path(vd->vdev_child[c], path)) !=
2480 * Find the first available hole which can be used as a top-level.
2483 find_vdev_hole(spa_t *spa)
2485 vdev_t *rvd = spa->spa_root_vdev;
2488 ASSERT(spa_config_held(spa, SCL_VDEV, RW_READER) == SCL_VDEV);
2490 for (c = 0; c < rvd->vdev_children; c++) {
2491 vdev_t *cvd = rvd->vdev_child[c];
2493 if (cvd->vdev_ishole)
2500 * Verify that vdev_add() works as expected.
2504 ztest_vdev_add_remove(ztest_ds_t *zd, uint64_t id)
2506 ztest_shared_t *zs = ztest_shared;
2507 spa_t *spa = ztest_spa;
2513 VERIFY(mutex_lock(&ztest_vdev_lock) == 0);
2514 leaves = MAX(zs->zs_mirrors + zs->zs_splits, 1) * ztest_opts.zo_raidz;
2516 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2518 ztest_shared->zs_vdev_next_leaf = find_vdev_hole(spa) * leaves;
2521 * If we have slogs then remove them 1/4 of the time.
2523 if (spa_has_slogs(spa) && ztest_random(4) == 0) {
2525 * Grab the guid from the head of the log class rotor.
2527 guid = spa_log_class(spa)->mc_rotor->mg_vd->vdev_guid;
2529 spa_config_exit(spa, SCL_VDEV, FTAG);
2532 * We have to grab the zs_name_lock as writer to
2533 * prevent a race between removing a slog (dmu_objset_find)
2534 * and destroying a dataset. Removing the slog will
2535 * grab a reference on the dataset which may cause
2536 * dmu_objset_destroy() to fail with EBUSY thus
2537 * leaving the dataset in an inconsistent state.
2539 VERIFY(rw_wrlock(&ztest_name_lock) == 0);
2540 error = spa_vdev_remove(spa, guid, B_FALSE);
2541 VERIFY(rw_unlock(&ztest_name_lock) == 0);
2543 if (error && error != EEXIST)
2544 fatal(0, "spa_vdev_remove() = %d", error);
2546 spa_config_exit(spa, SCL_VDEV, FTAG);
2549 * Make 1/4 of the devices be log devices.
2551 nvroot = make_vdev_root(NULL, NULL, NULL,
2552 ztest_opts.zo_vdev_size, 0,
2553 ztest_random(4) == 0, ztest_opts.zo_raidz,
2556 error = spa_vdev_add(spa, nvroot);
2557 nvlist_free(nvroot);
2559 if (error == ENOSPC)
2560 ztest_record_enospc("spa_vdev_add");
2561 else if (error != 0)
2562 fatal(0, "spa_vdev_add() = %d", error);
2565 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
2569 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2573 ztest_vdev_aux_add_remove(ztest_ds_t *zd, uint64_t id)
2575 ztest_shared_t *zs = ztest_shared;
2576 spa_t *spa = ztest_spa;
2577 vdev_t *rvd = spa->spa_root_vdev;
2578 spa_aux_vdev_t *sav;
2583 if (ztest_random(2) == 0) {
2584 sav = &spa->spa_spares;
2585 aux = ZPOOL_CONFIG_SPARES;
2587 sav = &spa->spa_l2cache;
2588 aux = ZPOOL_CONFIG_L2CACHE;
2591 VERIFY(mutex_lock(&ztest_vdev_lock) == 0);
2593 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2595 if (sav->sav_count != 0 && ztest_random(4) == 0) {
2597 * Pick a random device to remove.
2599 guid = sav->sav_vdevs[ztest_random(sav->sav_count)]->vdev_guid;
2602 * Find an unused device we can add.
2604 zs->zs_vdev_aux = 0;
2606 char path[MAXPATHLEN];
2608 (void) snprintf(path, sizeof (path), ztest_aux_template,
2609 ztest_opts.zo_dir, ztest_opts.zo_pool, aux,
2611 for (c = 0; c < sav->sav_count; c++)
2612 if (strcmp(sav->sav_vdevs[c]->vdev_path,
2615 if (c == sav->sav_count &&
2616 vdev_lookup_by_path(rvd, path) == NULL)
2622 spa_config_exit(spa, SCL_VDEV, FTAG);
2628 nvlist_t *nvroot = make_vdev_root(NULL, aux, NULL,
2629 (ztest_opts.zo_vdev_size * 5) / 4, 0, 0, 0, 0, 1);
2630 error = spa_vdev_add(spa, nvroot);
2632 fatal(0, "spa_vdev_add(%p) = %d", nvroot, error);
2633 nvlist_free(nvroot);
2636 * Remove an existing device. Sometimes, dirty its
2637 * vdev state first to make sure we handle removal
2638 * of devices that have pending state changes.
2640 if (ztest_random(2) == 0)
2641 (void) vdev_online(spa, guid, 0, NULL);
2643 error = spa_vdev_remove(spa, guid, B_FALSE);
2644 if (error != 0 && error != EBUSY)
2645 fatal(0, "spa_vdev_remove(%llu) = %d", guid, error);
2648 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
2652 * split a pool if it has mirror tlvdevs
2656 ztest_split_pool(ztest_ds_t *zd, uint64_t id)
2658 ztest_shared_t *zs = ztest_shared;
2659 spa_t *spa = ztest_spa;
2660 vdev_t *rvd = spa->spa_root_vdev;
2661 nvlist_t *tree, **child, *config, *split, **schild;
2662 uint_t c, children, schildren = 0, lastlogid = 0;
2665 VERIFY(mutex_lock(&ztest_vdev_lock) == 0);
2667 /* ensure we have a useable config; mirrors of raidz aren't supported */
2668 if (zs->zs_mirrors < 3 || ztest_opts.zo_raidz > 1) {
2669 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
2673 /* clean up the old pool, if any */
2674 (void) spa_destroy("splitp");
2676 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2678 /* generate a config from the existing config */
2679 mutex_enter(&spa->spa_props_lock);
2680 VERIFY(nvlist_lookup_nvlist(spa->spa_config, ZPOOL_CONFIG_VDEV_TREE,
2682 mutex_exit(&spa->spa_props_lock);
2684 VERIFY(nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child,
2687 schild = malloc(rvd->vdev_children * sizeof (nvlist_t *));
2688 for (c = 0; c < children; c++) {
2689 vdev_t *tvd = rvd->vdev_child[c];
2693 if (tvd->vdev_islog || tvd->vdev_ops == &vdev_hole_ops) {
2694 VERIFY(nvlist_alloc(&schild[schildren], NV_UNIQUE_NAME,
2696 VERIFY(nvlist_add_string(schild[schildren],
2697 ZPOOL_CONFIG_TYPE, VDEV_TYPE_HOLE) == 0);
2698 VERIFY(nvlist_add_uint64(schild[schildren],
2699 ZPOOL_CONFIG_IS_HOLE, 1) == 0);
2701 lastlogid = schildren;
2706 VERIFY(nvlist_lookup_nvlist_array(child[c],
2707 ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0);
2708 VERIFY(nvlist_dup(mchild[0], &schild[schildren++], 0) == 0);
2711 /* OK, create a config that can be used to split */
2712 VERIFY(nvlist_alloc(&split, NV_UNIQUE_NAME, 0) == 0);
2713 VERIFY(nvlist_add_string(split, ZPOOL_CONFIG_TYPE,
2714 VDEV_TYPE_ROOT) == 0);
2715 VERIFY(nvlist_add_nvlist_array(split, ZPOOL_CONFIG_CHILDREN, schild,
2716 lastlogid != 0 ? lastlogid : schildren) == 0);
2718 VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, 0) == 0);
2719 VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, split) == 0);
2721 for (c = 0; c < schildren; c++)
2722 nvlist_free(schild[c]);
2726 spa_config_exit(spa, SCL_VDEV, FTAG);
2728 (void) rw_wrlock(&ztest_name_lock);
2729 error = spa_vdev_split_mirror(spa, "splitp", config, NULL, B_FALSE);
2730 (void) rw_unlock(&ztest_name_lock);
2732 nvlist_free(config);
2735 (void) printf("successful split - results:\n");
2736 mutex_enter(&spa_namespace_lock);
2737 show_pool_stats(spa);
2738 show_pool_stats(spa_lookup("splitp"));
2739 mutex_exit(&spa_namespace_lock);
2743 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
2748 * Verify that we can attach and detach devices.
2752 ztest_vdev_attach_detach(ztest_ds_t *zd, uint64_t id)
2754 ztest_shared_t *zs = ztest_shared;
2755 spa_t *spa = ztest_spa;
2756 spa_aux_vdev_t *sav = &spa->spa_spares;
2757 vdev_t *rvd = spa->spa_root_vdev;
2758 vdev_t *oldvd, *newvd, *pvd;
2762 uint64_t ashift = ztest_get_ashift();
2763 uint64_t oldguid, pguid;
2764 uint64_t oldsize, newsize;
2765 char oldpath[MAXPATHLEN], newpath[MAXPATHLEN];
2767 int oldvd_has_siblings = B_FALSE;
2768 int newvd_is_spare = B_FALSE;
2770 int error, expected_error;
2772 VERIFY(mutex_lock(&ztest_vdev_lock) == 0);
2773 leaves = MAX(zs->zs_mirrors, 1) * ztest_opts.zo_raidz;
2775 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2778 * Decide whether to do an attach or a replace.
2780 replacing = ztest_random(2);
2783 * Pick a random top-level vdev.
2785 top = ztest_random_vdev_top(spa, B_TRUE);
2788 * Pick a random leaf within it.
2790 leaf = ztest_random(leaves);
2795 oldvd = rvd->vdev_child[top];
2796 if (zs->zs_mirrors >= 1) {
2797 ASSERT(oldvd->vdev_ops == &vdev_mirror_ops);
2798 ASSERT(oldvd->vdev_children >= zs->zs_mirrors);
2799 oldvd = oldvd->vdev_child[leaf / ztest_opts.zo_raidz];
2801 if (ztest_opts.zo_raidz > 1) {
2802 ASSERT(oldvd->vdev_ops == &vdev_raidz_ops);
2803 ASSERT(oldvd->vdev_children == ztest_opts.zo_raidz);
2804 oldvd = oldvd->vdev_child[leaf % ztest_opts.zo_raidz];
2808 * If we're already doing an attach or replace, oldvd may be a
2809 * mirror vdev -- in which case, pick a random child.
2811 while (oldvd->vdev_children != 0) {
2812 oldvd_has_siblings = B_TRUE;
2813 ASSERT(oldvd->vdev_children >= 2);
2814 oldvd = oldvd->vdev_child[ztest_random(oldvd->vdev_children)];
2817 oldguid = oldvd->vdev_guid;
2818 oldsize = vdev_get_min_asize(oldvd);
2819 oldvd_is_log = oldvd->vdev_top->vdev_islog;
2820 (void) strcpy(oldpath, oldvd->vdev_path);
2821 pvd = oldvd->vdev_parent;
2822 pguid = pvd->vdev_guid;
2825 * If oldvd has siblings, then half of the time, detach it.
2827 if (oldvd_has_siblings && ztest_random(2) == 0) {
2828 spa_config_exit(spa, SCL_VDEV, FTAG);
2829 error = spa_vdev_detach(spa, oldguid, pguid, B_FALSE);
2830 if (error != 0 && error != ENODEV && error != EBUSY &&
2832 fatal(0, "detach (%s) returned %d", oldpath, error);
2833 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
2838 * For the new vdev, choose with equal probability between the two
2839 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2841 if (sav->sav_count != 0 && ztest_random(3) == 0) {
2842 newvd = sav->sav_vdevs[ztest_random(sav->sav_count)];
2843 newvd_is_spare = B_TRUE;
2844 (void) strcpy(newpath, newvd->vdev_path);
2846 (void) snprintf(newpath, sizeof (newpath), ztest_dev_template,
2847 ztest_opts.zo_dir, ztest_opts.zo_pool,
2848 top * leaves + leaf);
2849 if (ztest_random(2) == 0)
2850 newpath[strlen(newpath) - 1] = 'b';
2851 newvd = vdev_lookup_by_path(rvd, newpath);
2855 newsize = vdev_get_min_asize(newvd);
2858 * Make newsize a little bigger or smaller than oldsize.
2859 * If it's smaller, the attach should fail.
2860 * If it's larger, and we're doing a replace,
2861 * we should get dynamic LUN growth when we're done.
2863 newsize = 10 * oldsize / (9 + ztest_random(3));
2867 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2868 * unless it's a replace; in that case any non-replacing parent is OK.
2870 * If newvd is already part of the pool, it should fail with EBUSY.
2872 * If newvd is too small, it should fail with EOVERFLOW.
2874 if (pvd->vdev_ops != &vdev_mirror_ops &&
2875 pvd->vdev_ops != &vdev_root_ops && (!replacing ||
2876 pvd->vdev_ops == &vdev_replacing_ops ||
2877 pvd->vdev_ops == &vdev_spare_ops))
2878 expected_error = ENOTSUP;
2879 else if (newvd_is_spare && (!replacing || oldvd_is_log))
2880 expected_error = ENOTSUP;
2881 else if (newvd == oldvd)
2882 expected_error = replacing ? 0 : EBUSY;
2883 else if (vdev_lookup_by_path(rvd, newpath) != NULL)
2884 expected_error = EBUSY;
2885 else if (newsize < oldsize)
2886 expected_error = EOVERFLOW;
2887 else if (ashift > oldvd->vdev_top->vdev_ashift)
2888 expected_error = EDOM;
2892 spa_config_exit(spa, SCL_VDEV, FTAG);
2895 * Build the nvlist describing newpath.
2897 root = make_vdev_root(newpath, NULL, NULL, newvd == NULL ? newsize : 0,
2898 ashift, 0, 0, 0, 1);
2900 error = spa_vdev_attach(spa, oldguid, root, replacing);
2905 * If our parent was the replacing vdev, but the replace completed,
2906 * then instead of failing with ENOTSUP we may either succeed,
2907 * fail with ENODEV, or fail with EOVERFLOW.
2909 if (expected_error == ENOTSUP &&
2910 (error == 0 || error == ENODEV || error == EOVERFLOW))
2911 expected_error = error;
2914 * If someone grew the LUN, the replacement may be too small.
2916 if (error == EOVERFLOW || error == EBUSY)
2917 expected_error = error;
2919 /* XXX workaround 6690467 */
2920 if (error != expected_error && expected_error != EBUSY) {
2921 fatal(0, "attach (%s %llu, %s %llu, %d) "
2922 "returned %d, expected %d",
2923 oldpath, oldsize, newpath,
2924 newsize, replacing, error, expected_error);
2927 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
2931 * Callback function which expands the physical size of the vdev.
2934 grow_vdev(vdev_t *vd, void *arg)
2936 spa_t *spa = vd->vdev_spa;
2937 size_t *newsize = arg;
2941 ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
2942 ASSERT(vd->vdev_ops->vdev_op_leaf);
2944 if ((fd = open(vd->vdev_path, O_RDWR)) == -1)
2947 fsize = lseek(fd, 0, SEEK_END);
2948 (void) ftruncate(fd, *newsize);
2950 if (ztest_opts.zo_verbose >= 6) {
2951 (void) printf("%s grew from %lu to %lu bytes\n",
2952 vd->vdev_path, (ulong_t)fsize, (ulong_t)*newsize);
2959 * Callback function which expands a given vdev by calling vdev_online().
2963 online_vdev(vdev_t *vd, void *arg)
2965 spa_t *spa = vd->vdev_spa;
2966 vdev_t *tvd = vd->vdev_top;
2967 uint64_t guid = vd->vdev_guid;
2968 uint64_t generation = spa->spa_config_generation + 1;
2969 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
2972 ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
2973 ASSERT(vd->vdev_ops->vdev_op_leaf);
2975 /* Calling vdev_online will initialize the new metaslabs */
2976 spa_config_exit(spa, SCL_STATE, spa);
2977 error = vdev_online(spa, guid, ZFS_ONLINE_EXPAND, &newstate);
2978 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
2981 * If vdev_online returned an error or the underlying vdev_open
2982 * failed then we abort the expand. The only way to know that
2983 * vdev_open fails is by checking the returned newstate.
2985 if (error || newstate != VDEV_STATE_HEALTHY) {
2986 if (ztest_opts.zo_verbose >= 5) {
2987 (void) printf("Unable to expand vdev, state %llu, "
2988 "error %d\n", (u_longlong_t)newstate, error);
2992 ASSERT3U(newstate, ==, VDEV_STATE_HEALTHY);
2995 * Since we dropped the lock we need to ensure that we're
2996 * still talking to the original vdev. It's possible this
2997 * vdev may have been detached/replaced while we were
2998 * trying to online it.
3000 if (generation != spa->spa_config_generation) {
3001 if (ztest_opts.zo_verbose >= 5) {
3002 (void) printf("vdev configuration has changed, "
3003 "guid %llu, state %llu, expected gen %llu, "
3006 (u_longlong_t)tvd->vdev_state,
3007 (u_longlong_t)generation,
3008 (u_longlong_t)spa->spa_config_generation);
3016 * Traverse the vdev tree calling the supplied function.
3017 * We continue to walk the tree until we either have walked all
3018 * children or we receive a non-NULL return from the callback.
3019 * If a NULL callback is passed, then we just return back the first
3020 * leaf vdev we encounter.
3023 vdev_walk_tree(vdev_t *vd, vdev_t *(*func)(vdev_t *, void *), void *arg)
3025 if (vd->vdev_ops->vdev_op_leaf) {
3029 return (func(vd, arg));
3032 for (uint_t c = 0; c < vd->vdev_children; c++) {
3033 vdev_t *cvd = vd->vdev_child[c];
3034 if ((cvd = vdev_walk_tree(cvd, func, arg)) != NULL)
3041 * Verify that dynamic LUN growth works as expected.
3045 ztest_vdev_LUN_growth(ztest_ds_t *zd, uint64_t id)
3047 spa_t *spa = ztest_spa;
3049 metaslab_class_t *mc;
3050 metaslab_group_t *mg;
3051 size_t psize, newsize;
3053 uint64_t old_class_space, new_class_space, old_ms_count, new_ms_count;
3055 VERIFY(mutex_lock(&ztest_vdev_lock) == 0);
3056 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
3058 top = ztest_random_vdev_top(spa, B_TRUE);
3060 tvd = spa->spa_root_vdev->vdev_child[top];
3063 old_ms_count = tvd->vdev_ms_count;
3064 old_class_space = metaslab_class_get_space(mc);
3067 * Determine the size of the first leaf vdev associated with
3068 * our top-level device.
3070 vd = vdev_walk_tree(tvd, NULL, NULL);
3071 ASSERT3P(vd, !=, NULL);
3072 ASSERT(vd->vdev_ops->vdev_op_leaf);
3074 psize = vd->vdev_psize;
3077 * We only try to expand the vdev if it's healthy, less than 4x its
3078 * original size, and it has a valid psize.
3080 if (tvd->vdev_state != VDEV_STATE_HEALTHY ||
3081 psize == 0 || psize >= 4 * ztest_opts.zo_vdev_size) {
3082 spa_config_exit(spa, SCL_STATE, spa);
3083 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
3087 newsize = psize + psize / 8;
3088 ASSERT3U(newsize, >, psize);
3090 if (ztest_opts.zo_verbose >= 6) {
3091 (void) printf("Expanding LUN %s from %lu to %lu\n",
3092 vd->vdev_path, (ulong_t)psize, (ulong_t)newsize);
3096 * Growing the vdev is a two step process:
3097 * 1). expand the physical size (i.e. relabel)
3098 * 2). online the vdev to create the new metaslabs
3100 if (vdev_walk_tree(tvd, grow_vdev, &newsize) != NULL ||
3101 vdev_walk_tree(tvd, online_vdev, NULL) != NULL ||
3102 tvd->vdev_state != VDEV_STATE_HEALTHY) {
3103 if (ztest_opts.zo_verbose >= 5) {
3104 (void) printf("Could not expand LUN because "
3105 "the vdev configuration changed.\n");
3107 spa_config_exit(spa, SCL_STATE, spa);
3108 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
3112 spa_config_exit(spa, SCL_STATE, spa);
3115 * Expanding the LUN will update the config asynchronously,
3116 * thus we must wait for the async thread to complete any
3117 * pending tasks before proceeding.
3121 mutex_enter(&spa->spa_async_lock);
3122 done = (spa->spa_async_thread == NULL && !spa->spa_async_tasks);
3123 mutex_exit(&spa->spa_async_lock);
3126 txg_wait_synced(spa_get_dsl(spa), 0);
3127 (void) poll(NULL, 0, 100);
3130 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
3132 tvd = spa->spa_root_vdev->vdev_child[top];
3133 new_ms_count = tvd->vdev_ms_count;
3134 new_class_space = metaslab_class_get_space(mc);
3136 if (tvd->vdev_mg != mg || mg->mg_class != mc) {
3137 if (ztest_opts.zo_verbose >= 5) {
3138 (void) printf("Could not verify LUN expansion due to "
3139 "intervening vdev offline or remove.\n");
3141 spa_config_exit(spa, SCL_STATE, spa);
3142 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
3147 * Make sure we were able to grow the vdev.
3149 if (new_ms_count <= old_ms_count)
3150 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3151 old_ms_count, new_ms_count);
3154 * Make sure we were able to grow the pool.
3156 if (new_class_space <= old_class_space)
3157 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3158 old_class_space, new_class_space);
3160 if (ztest_opts.zo_verbose >= 5) {
3161 char oldnumbuf[6], newnumbuf[6];
3163 nicenum(old_class_space, oldnumbuf);
3164 nicenum(new_class_space, newnumbuf);
3165 (void) printf("%s grew from %s to %s\n",
3166 spa->spa_name, oldnumbuf, newnumbuf);
3169 spa_config_exit(spa, SCL_STATE, spa);
3170 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
3174 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3178 ztest_objset_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
3181 * Create the objects common to all ztest datasets.
3183 VERIFY(zap_create_claim(os, ZTEST_DIROBJ,
3184 DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0);
3188 ztest_dataset_create(char *dsname)
3190 uint64_t zilset = ztest_random(100);
3191 int err = dmu_objset_create(dsname, DMU_OST_OTHER, 0,
3192 ztest_objset_create_cb, NULL);
3194 if (err || zilset < 80)
3197 if (ztest_opts.zo_verbose >= 6)
3198 (void) printf("Setting dataset %s to sync always\n", dsname);
3199 return (ztest_dsl_prop_set_uint64(dsname, ZFS_PROP_SYNC,
3200 ZFS_SYNC_ALWAYS, B_FALSE));
3205 ztest_objset_destroy_cb(const char *name, void *arg)
3208 dmu_object_info_t doi;
3212 * Verify that the dataset contains a directory object.
3214 VERIFY0(dmu_objset_own(name, DMU_OST_OTHER, B_TRUE, FTAG, &os));
3215 error = dmu_object_info(os, ZTEST_DIROBJ, &doi);
3216 if (error != ENOENT) {
3217 /* We could have crashed in the middle of destroying it */
3219 ASSERT3U(doi.doi_type, ==, DMU_OT_ZAP_OTHER);
3220 ASSERT3S(doi.doi_physical_blocks_512, >=, 0);
3222 dmu_objset_disown(os, FTAG);
3225 * Destroy the dataset.
3227 if (strchr(name, '@') != NULL) {
3228 VERIFY0(dsl_destroy_snapshot(name, B_FALSE));
3230 VERIFY0(dsl_destroy_head(name));
3236 ztest_snapshot_create(char *osname, uint64_t id)
3238 char snapname[MAXNAMELEN];
3241 (void) snprintf(snapname, sizeof (snapname), "%llu", (u_longlong_t)id);
3243 error = dmu_objset_snapshot_one(osname, snapname);
3244 if (error == ENOSPC) {
3245 ztest_record_enospc(FTAG);
3248 if (error != 0 && error != EEXIST) {
3249 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname,
3256 ztest_snapshot_destroy(char *osname, uint64_t id)
3258 char snapname[MAXNAMELEN];
3261 (void) snprintf(snapname, MAXNAMELEN, "%s@%llu", osname,
3264 error = dsl_destroy_snapshot(snapname, B_FALSE);
3265 if (error != 0 && error != ENOENT)
3266 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname, error);
3272 ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
3278 char name[MAXNAMELEN];
3281 (void) rw_rdlock(&ztest_name_lock);
3283 (void) snprintf(name, MAXNAMELEN, "%s/temp_%llu",
3284 ztest_opts.zo_pool, (u_longlong_t)id);
3287 * If this dataset exists from a previous run, process its replay log
3288 * half of the time. If we don't replay it, then dmu_objset_destroy()
3289 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3291 if (ztest_random(2) == 0 &&
3292 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os) == 0) {
3293 ztest_zd_init(&zdtmp, NULL, os);
3294 zil_replay(os, &zdtmp, ztest_replay_vector);
3295 ztest_zd_fini(&zdtmp);
3296 dmu_objset_disown(os, FTAG);
3300 * There may be an old instance of the dataset we're about to
3301 * create lying around from a previous run. If so, destroy it
3302 * and all of its snapshots.
3304 (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
3305 DS_FIND_CHILDREN | DS_FIND_SNAPSHOTS);
3308 * Verify that the destroyed dataset is no longer in the namespace.
3310 VERIFY3U(ENOENT, ==, dmu_objset_own(name, DMU_OST_OTHER, B_TRUE,
3314 * Verify that we can create a new dataset.
3316 error = ztest_dataset_create(name);
3318 if (error == ENOSPC) {
3319 ztest_record_enospc(FTAG);
3320 (void) rw_unlock(&ztest_name_lock);
3323 fatal(0, "dmu_objset_create(%s) = %d", name, error);
3326 VERIFY0(dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os));
3328 ztest_zd_init(&zdtmp, NULL, os);
3331 * Open the intent log for it.
3333 zilog = zil_open(os, ztest_get_data);
3336 * Put some objects in there, do a little I/O to them,
3337 * and randomly take a couple of snapshots along the way.
3339 iters = ztest_random(5);
3340 for (int i = 0; i < iters; i++) {
3341 ztest_dmu_object_alloc_free(&zdtmp, id);
3342 if (ztest_random(iters) == 0)
3343 (void) ztest_snapshot_create(name, i);
3347 * Verify that we cannot create an existing dataset.
3349 VERIFY3U(EEXIST, ==,
3350 dmu_objset_create(name, DMU_OST_OTHER, 0, NULL, NULL));
3353 * Verify that we can hold an objset that is also owned.
3355 VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os2));
3356 dmu_objset_rele(os2, FTAG);
3359 * Verify that we cannot own an objset that is already owned.
3362 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os2));
3365 dmu_objset_disown(os, FTAG);
3366 ztest_zd_fini(&zdtmp);
3368 (void) rw_unlock(&ztest_name_lock);
3372 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3375 ztest_dmu_snapshot_create_destroy(ztest_ds_t *zd, uint64_t id)
3377 (void) rw_rdlock(&ztest_name_lock);
3378 (void) ztest_snapshot_destroy(zd->zd_name, id);
3379 (void) ztest_snapshot_create(zd->zd_name, id);
3380 (void) rw_unlock(&ztest_name_lock);
3384 * Cleanup non-standard snapshots and clones.
3387 ztest_dsl_dataset_cleanup(char *osname, uint64_t id)
3389 char snap1name[MAXNAMELEN];
3390 char clone1name[MAXNAMELEN];
3391 char snap2name[MAXNAMELEN];
3392 char clone2name[MAXNAMELEN];
3393 char snap3name[MAXNAMELEN];
3396 (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id);
3397 (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id);
3398 (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id);
3399 (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id);
3400 (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id);
3402 error = dsl_destroy_head(clone2name);
3403 if (error && error != ENOENT)
3404 fatal(0, "dsl_destroy_head(%s) = %d", clone2name, error);
3405 error = dsl_destroy_snapshot(snap3name, B_FALSE);
3406 if (error && error != ENOENT)
3407 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name, error);
3408 error = dsl_destroy_snapshot(snap2name, B_FALSE);
3409 if (error && error != ENOENT)
3410 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name, error);
3411 error = dsl_destroy_head(clone1name);
3412 if (error && error != ENOENT)
3413 fatal(0, "dsl_destroy_head(%s) = %d", clone1name, error);
3414 error = dsl_destroy_snapshot(snap1name, B_FALSE);
3415 if (error && error != ENOENT)
3416 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name, error);
3420 * Verify dsl_dataset_promote handles EBUSY
3423 ztest_dsl_dataset_promote_busy(ztest_ds_t *zd, uint64_t id)
3426 char snap1name[MAXNAMELEN];
3427 char clone1name[MAXNAMELEN];
3428 char snap2name[MAXNAMELEN];
3429 char clone2name[MAXNAMELEN];
3430 char snap3name[MAXNAMELEN];
3431 char *osname = zd->zd_name;
3434 (void) rw_rdlock(&ztest_name_lock);
3436 ztest_dsl_dataset_cleanup(osname, id);
3438 (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id);
3439 (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id);
3440 (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id);
3441 (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id);
3442 (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id);
3444 error = dmu_objset_snapshot_one(osname, strchr(snap1name, '@') + 1);
3445 if (error && error != EEXIST) {
3446 if (error == ENOSPC) {
3447 ztest_record_enospc(FTAG);
3450 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name, error);
3453 error = dmu_objset_clone(clone1name, snap1name);
3455 if (error == ENOSPC) {
3456 ztest_record_enospc(FTAG);
3459 fatal(0, "dmu_objset_create(%s) = %d", clone1name, error);
3462 error = dmu_objset_snapshot_one(clone1name, strchr(snap2name, '@') + 1);
3463 if (error && error != EEXIST) {
3464 if (error == ENOSPC) {
3465 ztest_record_enospc(FTAG);
3468 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name, error);
3471 error = dmu_objset_snapshot_one(clone1name, strchr(snap3name, '@') + 1);
3472 if (error && error != EEXIST) {
3473 if (error == ENOSPC) {
3474 ztest_record_enospc(FTAG);
3477 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error);
3480 error = dmu_objset_clone(clone2name, snap3name);
3482 if (error == ENOSPC) {
3483 ztest_record_enospc(FTAG);
3486 fatal(0, "dmu_objset_create(%s) = %d", clone2name, error);
3489 error = dmu_objset_own(snap2name, DMU_OST_ANY, B_TRUE, FTAG, &os);
3491 fatal(0, "dmu_objset_own(%s) = %d", snap2name, error);
3492 error = dsl_dataset_promote(clone2name, NULL);
3493 if (error == ENOSPC) {
3494 dmu_objset_disown(os, FTAG);
3495 ztest_record_enospc(FTAG);
3499 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name,
3501 dmu_objset_disown(os, FTAG);
3504 ztest_dsl_dataset_cleanup(osname, id);
3506 (void) rw_unlock(&ztest_name_lock);
3510 * Verify that dmu_object_{alloc,free} work as expected.
3513 ztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t id)
3516 int batchsize = sizeof (od) / sizeof (od[0]);
3518 for (int b = 0; b < batchsize; b++)
3519 ztest_od_init(&od[b], id, FTAG, b, DMU_OT_UINT64_OTHER, 0, 0);
3522 * Destroy the previous batch of objects, create a new batch,
3523 * and do some I/O on the new objects.
3525 if (ztest_object_init(zd, od, sizeof (od), B_TRUE) != 0)
3528 while (ztest_random(4 * batchsize) != 0)
3529 ztest_io(zd, od[ztest_random(batchsize)].od_object,
3530 ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
3534 * Verify that dmu_{read,write} work as expected.
3537 ztest_dmu_read_write(ztest_ds_t *zd, uint64_t id)
3539 objset_t *os = zd->zd_os;
3542 int i, freeit, error;
3544 bufwad_t *packbuf, *bigbuf, *pack, *bigH, *bigT;
3545 uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
3546 uint64_t chunksize = (1000 + ztest_random(1000)) * sizeof (uint64_t);
3547 uint64_t regions = 997;
3548 uint64_t stride = 123456789ULL;
3549 uint64_t width = 40;
3550 int free_percent = 5;
3553 * This test uses two objects, packobj and bigobj, that are always
3554 * updated together (i.e. in the same tx) so that their contents are
3555 * in sync and can be compared. Their contents relate to each other
3556 * in a simple way: packobj is a dense array of 'bufwad' structures,
3557 * while bigobj is a sparse array of the same bufwads. Specifically,
3558 * for any index n, there are three bufwads that should be identical:
3560 * packobj, at offset n * sizeof (bufwad_t)
3561 * bigobj, at the head of the nth chunk
3562 * bigobj, at the tail of the nth chunk
3564 * The chunk size is arbitrary. It doesn't have to be a power of two,
3565 * and it doesn't have any relation to the object blocksize.
3566 * The only requirement is that it can hold at least two bufwads.
3568 * Normally, we write the bufwad to each of these locations.
3569 * However, free_percent of the time we instead write zeroes to
3570 * packobj and perform a dmu_free_range() on bigobj. By comparing
3571 * bigobj to packobj, we can verify that the DMU is correctly
3572 * tracking which parts of an object are allocated and free,
3573 * and that the contents of the allocated blocks are correct.
3577 * Read the directory info. If it's the first time, set things up.
3579 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, chunksize);
3580 ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize);
3582 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3585 bigobj = od[0].od_object;
3586 packobj = od[1].od_object;
3587 chunksize = od[0].od_gen;
3588 ASSERT(chunksize == od[1].od_gen);
3591 * Prefetch a random chunk of the big object.
3592 * Our aim here is to get some async reads in flight
3593 * for blocks that we may free below; the DMU should
3594 * handle this race correctly.
3596 n = ztest_random(regions) * stride + ztest_random(width);
3597 s = 1 + ztest_random(2 * width - 1);
3598 dmu_prefetch(os, bigobj, n * chunksize, s * chunksize);
3601 * Pick a random index and compute the offsets into packobj and bigobj.
3603 n = ztest_random(regions) * stride + ztest_random(width);
3604 s = 1 + ztest_random(width - 1);
3606 packoff = n * sizeof (bufwad_t);
3607 packsize = s * sizeof (bufwad_t);
3609 bigoff = n * chunksize;
3610 bigsize = s * chunksize;
3612 packbuf = umem_alloc(packsize, UMEM_NOFAIL);
3613 bigbuf = umem_alloc(bigsize, UMEM_NOFAIL);
3616 * free_percent of the time, free a range of bigobj rather than
3619 freeit = (ztest_random(100) < free_percent);
3622 * Read the current contents of our objects.
3624 error = dmu_read(os, packobj, packoff, packsize, packbuf,
3627 error = dmu_read(os, bigobj, bigoff, bigsize, bigbuf,
3632 * Get a tx for the mods to both packobj and bigobj.
3634 tx = dmu_tx_create(os);
3636 dmu_tx_hold_write(tx, packobj, packoff, packsize);
3639 dmu_tx_hold_free(tx, bigobj, bigoff, bigsize);
3641 dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
3643 /* This accounts for setting the checksum/compression. */
3644 dmu_tx_hold_bonus(tx, bigobj);
3646 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3648 umem_free(packbuf, packsize);
3649 umem_free(bigbuf, bigsize);
3653 enum zio_checksum cksum;
3655 cksum = (enum zio_checksum)
3656 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM);
3657 } while (cksum >= ZIO_CHECKSUM_LEGACY_FUNCTIONS);
3658 dmu_object_set_checksum(os, bigobj, cksum, tx);
3660 enum zio_compress comp;
3662 comp = (enum zio_compress)
3663 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION);
3664 } while (comp >= ZIO_COMPRESS_LEGACY_FUNCTIONS);
3665 dmu_object_set_compress(os, bigobj, comp, tx);
3668 * For each index from n to n + s, verify that the existing bufwad
3669 * in packobj matches the bufwads at the head and tail of the
3670 * corresponding chunk in bigobj. Then update all three bufwads
3671 * with the new values we want to write out.
3673 for (i = 0; i < s; i++) {
3675 pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
3677 bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
3679 bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
3681 ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
3682 ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
3684 if (pack->bw_txg > txg)
3685 fatal(0, "future leak: got %llx, open txg is %llx",
3688 if (pack->bw_data != 0 && pack->bw_index != n + i)
3689 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3690 pack->bw_index, n, i);
3692 if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0)
3693 fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH);
3695 if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0)
3696 fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT);
3699 bzero(pack, sizeof (bufwad_t));
3701 pack->bw_index = n + i;
3703 pack->bw_data = 1 + ztest_random(-2ULL);
3710 * We've verified all the old bufwads, and made new ones.
3711 * Now write them out.
3713 dmu_write(os, packobj, packoff, packsize, packbuf, tx);
3716 if (ztest_opts.zo_verbose >= 7) {
3717 (void) printf("freeing offset %llx size %llx"
3719 (u_longlong_t)bigoff,
3720 (u_longlong_t)bigsize,
3723 VERIFY(0 == dmu_free_range(os, bigobj, bigoff, bigsize, tx));
3725 if (ztest_opts.zo_verbose >= 7) {
3726 (void) printf("writing offset %llx size %llx"
3728 (u_longlong_t)bigoff,
3729 (u_longlong_t)bigsize,
3732 dmu_write(os, bigobj, bigoff, bigsize, bigbuf, tx);
3738 * Sanity check the stuff we just wrote.
3741 void *packcheck = umem_alloc(packsize, UMEM_NOFAIL);
3742 void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL);
3744 VERIFY(0 == dmu_read(os, packobj, packoff,
3745 packsize, packcheck, DMU_READ_PREFETCH));
3746 VERIFY(0 == dmu_read(os, bigobj, bigoff,
3747 bigsize, bigcheck, DMU_READ_PREFETCH));
3749 ASSERT(bcmp(packbuf, packcheck, packsize) == 0);
3750 ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0);
3752 umem_free(packcheck, packsize);
3753 umem_free(bigcheck, bigsize);
3756 umem_free(packbuf, packsize);
3757 umem_free(bigbuf, bigsize);
3761 compare_and_update_pbbufs(uint64_t s, bufwad_t *packbuf, bufwad_t *bigbuf,
3762 uint64_t bigsize, uint64_t n, uint64_t chunksize, uint64_t txg)
3770 * For each index from n to n + s, verify that the existing bufwad
3771 * in packobj matches the bufwads at the head and tail of the
3772 * corresponding chunk in bigobj. Then update all three bufwads
3773 * with the new values we want to write out.
3775 for (i = 0; i < s; i++) {
3777 pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
3779 bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
3781 bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
3783 ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
3784 ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
3786 if (pack->bw_txg > txg)
3787 fatal(0, "future leak: got %llx, open txg is %llx",
3790 if (pack->bw_data != 0 && pack->bw_index != n + i)
3791 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3792 pack->bw_index, n, i);
3794 if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0)
3795 fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH);
3797 if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0)
3798 fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT);
3800 pack->bw_index = n + i;
3802 pack->bw_data = 1 + ztest_random(-2ULL);
3810 ztest_dmu_read_write_zcopy(ztest_ds_t *zd, uint64_t id)
3812 objset_t *os = zd->zd_os;
3818 bufwad_t *packbuf, *bigbuf;
3819 uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
3820 uint64_t blocksize = ztest_random_blocksize();
3821 uint64_t chunksize = blocksize;
3822 uint64_t regions = 997;
3823 uint64_t stride = 123456789ULL;
3825 dmu_buf_t *bonus_db;
3826 arc_buf_t **bigbuf_arcbufs;
3827 dmu_object_info_t doi;
3830 * This test uses two objects, packobj and bigobj, that are always
3831 * updated together (i.e. in the same tx) so that their contents are
3832 * in sync and can be compared. Their contents relate to each other
3833 * in a simple way: packobj is a dense array of 'bufwad' structures,
3834 * while bigobj is a sparse array of the same bufwads. Specifically,
3835 * for any index n, there are three bufwads that should be identical:
3837 * packobj, at offset n * sizeof (bufwad_t)
3838 * bigobj, at the head of the nth chunk
3839 * bigobj, at the tail of the nth chunk
3841 * The chunk size is set equal to bigobj block size so that
3842 * dmu_assign_arcbuf() can be tested for object updates.
3846 * Read the directory info. If it's the first time, set things up.
3848 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
3849 ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize);
3851 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
3854 bigobj = od[0].od_object;
3855 packobj = od[1].od_object;
3856 blocksize = od[0].od_blocksize;
3857 chunksize = blocksize;
3858 ASSERT(chunksize == od[1].od_gen);
3860 VERIFY(dmu_object_info(os, bigobj, &doi) == 0);
3861 VERIFY(ISP2(doi.doi_data_block_size));
3862 VERIFY(chunksize == doi.doi_data_block_size);
3863 VERIFY(chunksize >= 2 * sizeof (bufwad_t));
3866 * Pick a random index and compute the offsets into packobj and bigobj.
3868 n = ztest_random(regions) * stride + ztest_random(width);
3869 s = 1 + ztest_random(width - 1);
3871 packoff = n * sizeof (bufwad_t);
3872 packsize = s * sizeof (bufwad_t);
3874 bigoff = n * chunksize;
3875 bigsize = s * chunksize;
3877 packbuf = umem_zalloc(packsize, UMEM_NOFAIL);
3878 bigbuf = umem_zalloc(bigsize, UMEM_NOFAIL);
3880 VERIFY3U(0, ==, dmu_bonus_hold(os, bigobj, FTAG, &bonus_db));
3882 bigbuf_arcbufs = umem_zalloc(2 * s * sizeof (arc_buf_t *), UMEM_NOFAIL);
3885 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
3886 * Iteration 1 test zcopy to already referenced dbufs.
3887 * Iteration 2 test zcopy to dirty dbuf in the same txg.
3888 * Iteration 3 test zcopy to dbuf dirty in previous txg.
3889 * Iteration 4 test zcopy when dbuf is no longer dirty.
3890 * Iteration 5 test zcopy when it can't be done.
3891 * Iteration 6 one more zcopy write.
3893 for (i = 0; i < 7; i++) {
3898 * In iteration 5 (i == 5) use arcbufs
3899 * that don't match bigobj blksz to test
3900 * dmu_assign_arcbuf() when it can't directly
3901 * assign an arcbuf to a dbuf.
3903 for (j = 0; j < s; j++) {
3906 dmu_request_arcbuf(bonus_db, chunksize);
3908 bigbuf_arcbufs[2 * j] =
3909 dmu_request_arcbuf(bonus_db, chunksize / 2);
3910 bigbuf_arcbufs[2 * j + 1] =
3911 dmu_request_arcbuf(bonus_db, chunksize / 2);
3916 * Get a tx for the mods to both packobj and bigobj.
3918 tx = dmu_tx_create(os);
3920 dmu_tx_hold_write(tx, packobj, packoff, packsize);
3921 dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
3923 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3925 umem_free(packbuf, packsize);
3926 umem_free(bigbuf, bigsize);
3927 for (j = 0; j < s; j++) {
3929 dmu_return_arcbuf(bigbuf_arcbufs[j]);
3932 bigbuf_arcbufs[2 * j]);
3934 bigbuf_arcbufs[2 * j + 1]);
3937 umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
3938 dmu_buf_rele(bonus_db, FTAG);
3943 * 50% of the time don't read objects in the 1st iteration to
3944 * test dmu_assign_arcbuf() for the case when there're no
3945 * existing dbufs for the specified offsets.
3947 if (i != 0 || ztest_random(2) != 0) {
3948 error = dmu_read(os, packobj, packoff,
3949 packsize, packbuf, DMU_READ_PREFETCH);
3951 error = dmu_read(os, bigobj, bigoff, bigsize,
3952 bigbuf, DMU_READ_PREFETCH);
3955 compare_and_update_pbbufs(s, packbuf, bigbuf, bigsize,
3959 * We've verified all the old bufwads, and made new ones.
3960 * Now write them out.
3962 dmu_write(os, packobj, packoff, packsize, packbuf, tx);
3963 if (ztest_opts.zo_verbose >= 7) {
3964 (void) printf("writing offset %llx size %llx"
3966 (u_longlong_t)bigoff,
3967 (u_longlong_t)bigsize,
3970 for (off = bigoff, j = 0; j < s; j++, off += chunksize) {
3973 bcopy((caddr_t)bigbuf + (off - bigoff),
3974 bigbuf_arcbufs[j]->b_data, chunksize);
3976 bcopy((caddr_t)bigbuf + (off - bigoff),
3977 bigbuf_arcbufs[2 * j]->b_data,
3979 bcopy((caddr_t)bigbuf + (off - bigoff) +
3981 bigbuf_arcbufs[2 * j + 1]->b_data,
3986 VERIFY(dmu_buf_hold(os, bigobj, off,
3987 FTAG, &dbt, DMU_READ_NO_PREFETCH) == 0);
3990 dmu_assign_arcbuf(bonus_db, off,
3991 bigbuf_arcbufs[j], tx);
3993 dmu_assign_arcbuf(bonus_db, off,
3994 bigbuf_arcbufs[2 * j], tx);
3995 dmu_assign_arcbuf(bonus_db,
3996 off + chunksize / 2,
3997 bigbuf_arcbufs[2 * j + 1], tx);
4000 dmu_buf_rele(dbt, FTAG);
4006 * Sanity check the stuff we just wrote.
4009 void *packcheck = umem_alloc(packsize, UMEM_NOFAIL);
4010 void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL);
4012 VERIFY(0 == dmu_read(os, packobj, packoff,
4013 packsize, packcheck, DMU_READ_PREFETCH));
4014 VERIFY(0 == dmu_read(os, bigobj, bigoff,
4015 bigsize, bigcheck, DMU_READ_PREFETCH));
4017 ASSERT(bcmp(packbuf, packcheck, packsize) == 0);
4018 ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0);
4020 umem_free(packcheck, packsize);
4021 umem_free(bigcheck, bigsize);
4024 txg_wait_open(dmu_objset_pool(os), 0);
4025 } else if (i == 3) {
4026 txg_wait_synced(dmu_objset_pool(os), 0);
4030 dmu_buf_rele(bonus_db, FTAG);
4031 umem_free(packbuf, packsize);
4032 umem_free(bigbuf, bigsize);
4033 umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
4038 ztest_dmu_write_parallel(ztest_ds_t *zd, uint64_t id)
4041 uint64_t offset = (1ULL << (ztest_random(20) + 43)) +
4042 (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
4045 * Have multiple threads write to large offsets in an object
4046 * to verify that parallel writes to an object -- even to the
4047 * same blocks within the object -- doesn't cause any trouble.
4049 ztest_od_init(&od[0], ID_PARALLEL, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
4051 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
4054 while (ztest_random(10) != 0)
4055 ztest_io(zd, od[0].od_object, offset);
4059 ztest_dmu_prealloc(ztest_ds_t *zd, uint64_t id)
4062 uint64_t offset = (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT)) +
4063 (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
4064 uint64_t count = ztest_random(20) + 1;
4065 uint64_t blocksize = ztest_random_blocksize();
4068 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
4070 if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
4073 if (ztest_truncate(zd, od[0].od_object, offset, count * blocksize) != 0)
4076 ztest_prealloc(zd, od[0].od_object, offset, count * blocksize);
4078 data = umem_zalloc(blocksize, UMEM_NOFAIL);
4080 while (ztest_random(count) != 0) {
4081 uint64_t randoff = offset + (ztest_random(count) * blocksize);
4082 if (ztest_write(zd, od[0].od_object, randoff, blocksize,
4085 while (ztest_random(4) != 0)
4086 ztest_io(zd, od[0].od_object, randoff);
4089 umem_free(data, blocksize);
4093 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4095 #define ZTEST_ZAP_MIN_INTS 1
4096 #define ZTEST_ZAP_MAX_INTS 4
4097 #define ZTEST_ZAP_MAX_PROPS 1000
4100 ztest_zap(ztest_ds_t *zd, uint64_t id)
4102 objset_t *os = zd->zd_os;
4105 uint64_t txg, last_txg;
4106 uint64_t value[ZTEST_ZAP_MAX_INTS];
4107 uint64_t zl_ints, zl_intsize, prop;
4110 char propname[100], txgname[100];
4112 char *hc[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4114 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
4116 if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
4119 object = od[0].od_object;
4122 * Generate a known hash collision, and verify that
4123 * we can lookup and remove both entries.
4125 tx = dmu_tx_create(os);
4126 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
4127 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4130 for (i = 0; i < 2; i++) {
4132 VERIFY3U(0, ==, zap_add(os, object, hc[i], sizeof (uint64_t),
4135 for (i = 0; i < 2; i++) {
4136 VERIFY3U(EEXIST, ==, zap_add(os, object, hc[i],
4137 sizeof (uint64_t), 1, &value[i], tx));
4139 zap_length(os, object, hc[i], &zl_intsize, &zl_ints));
4140 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
4141 ASSERT3U(zl_ints, ==, 1);
4143 for (i = 0; i < 2; i++) {
4144 VERIFY3U(0, ==, zap_remove(os, object, hc[i], tx));
4149 * Generate a buch of random entries.
4151 ints = MAX(ZTEST_ZAP_MIN_INTS, object % ZTEST_ZAP_MAX_INTS);
4153 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
4154 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
4155 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
4156 bzero(value, sizeof (value));
4160 * If these zap entries already exist, validate their contents.
4162 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
4164 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
4165 ASSERT3U(zl_ints, ==, 1);
4167 VERIFY(zap_lookup(os, object, txgname, zl_intsize,
4168 zl_ints, &last_txg) == 0);
4170 VERIFY(zap_length(os, object, propname, &zl_intsize,
4173 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
4174 ASSERT3U(zl_ints, ==, ints);
4176 VERIFY(zap_lookup(os, object, propname, zl_intsize,
4177 zl_ints, value) == 0);
4179 for (i = 0; i < ints; i++) {
4180 ASSERT3U(value[i], ==, last_txg + object + i);
4183 ASSERT3U(error, ==, ENOENT);
4187 * Atomically update two entries in our zap object.
4188 * The first is named txg_%llu, and contains the txg
4189 * in which the property was last updated. The second
4190 * is named prop_%llu, and the nth element of its value
4191 * should be txg + object + n.
4193 tx = dmu_tx_create(os);
4194 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
4195 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4200 fatal(0, "zap future leak: old %llu new %llu", last_txg, txg);
4202 for (i = 0; i < ints; i++)
4203 value[i] = txg + object + i;
4205 VERIFY3U(0, ==, zap_update(os, object, txgname, sizeof (uint64_t),
4207 VERIFY3U(0, ==, zap_update(os, object, propname, sizeof (uint64_t),
4213 * Remove a random pair of entries.
4215 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
4216 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
4217 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
4219 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
4221 if (error == ENOENT)
4226 tx = dmu_tx_create(os);
4227 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
4228 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4231 VERIFY3U(0, ==, zap_remove(os, object, txgname, tx));
4232 VERIFY3U(0, ==, zap_remove(os, object, propname, tx));
4237 * Testcase to test the upgrading of a microzap to fatzap.
4240 ztest_fzap(ztest_ds_t *zd, uint64_t id)
4242 objset_t *os = zd->zd_os;
4244 uint64_t object, txg;
4246 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
4248 if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
4251 object = od[0].od_object;
4254 * Add entries to this ZAP and make sure it spills over
4255 * and gets upgraded to a fatzap. Also, since we are adding
4256 * 2050 entries we should see ptrtbl growth and leaf-block split.
4258 for (int i = 0; i < 2050; i++) {
4259 char name[MAXNAMELEN];
4264 (void) snprintf(name, sizeof (name), "fzap-%llu-%llu",
4267 tx = dmu_tx_create(os);
4268 dmu_tx_hold_zap(tx, object, B_TRUE, name);
4269 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4272 error = zap_add(os, object, name, sizeof (uint64_t), 1,
4274 ASSERT(error == 0 || error == EEXIST);
4281 ztest_zap_parallel(ztest_ds_t *zd, uint64_t id)
4283 objset_t *os = zd->zd_os;
4285 uint64_t txg, object, count, wsize, wc, zl_wsize, zl_wc;
4287 int i, namelen, error;
4288 int micro = ztest_random(2);
4289 char name[20], string_value[20];
4292 ztest_od_init(&od[0], ID_PARALLEL, FTAG, micro, DMU_OT_ZAP_OTHER, 0, 0);
4294 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
4297 object = od[0].od_object;
4300 * Generate a random name of the form 'xxx.....' where each
4301 * x is a random printable character and the dots are dots.
4302 * There are 94 such characters, and the name length goes from
4303 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4305 namelen = ztest_random(sizeof (name) - 5) + 5 + 1;
4307 for (i = 0; i < 3; i++)
4308 name[i] = '!' + ztest_random('~' - '!' + 1);
4309 for (; i < namelen - 1; i++)
4313 if ((namelen & 1) || micro) {
4314 wsize = sizeof (txg);
4320 data = string_value;
4324 VERIFY0(zap_count(os, object, &count));
4325 ASSERT(count != -1ULL);
4328 * Select an operation: length, lookup, add, update, remove.
4330 i = ztest_random(5);
4333 tx = dmu_tx_create(os);
4334 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
4335 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4338 bcopy(name, string_value, namelen);
4342 bzero(string_value, namelen);
4348 error = zap_length(os, object, name, &zl_wsize, &zl_wc);
4350 ASSERT3U(wsize, ==, zl_wsize);
4351 ASSERT3U(wc, ==, zl_wc);
4353 ASSERT3U(error, ==, ENOENT);
4358 error = zap_lookup(os, object, name, wsize, wc, data);
4360 if (data == string_value &&
4361 bcmp(name, data, namelen) != 0)
4362 fatal(0, "name '%s' != val '%s' len %d",
4363 name, data, namelen);
4365 ASSERT3U(error, ==, ENOENT);
4370 error = zap_add(os, object, name, wsize, wc, data, tx);
4371 ASSERT(error == 0 || error == EEXIST);
4375 VERIFY(zap_update(os, object, name, wsize, wc, data, tx) == 0);
4379 error = zap_remove(os, object, name, tx);
4380 ASSERT(error == 0 || error == ENOENT);
4389 * Commit callback data.
4391 typedef struct ztest_cb_data {
4392 list_node_t zcd_node;
4394 int zcd_expected_err;
4395 boolean_t zcd_added;
4396 boolean_t zcd_called;
4400 /* This is the actual commit callback function */
4402 ztest_commit_callback(void *arg, int error)
4404 ztest_cb_data_t *data = arg;
4405 uint64_t synced_txg;
4407 VERIFY(data != NULL);
4408 VERIFY3S(data->zcd_expected_err, ==, error);
4409 VERIFY(!data->zcd_called);
4411 synced_txg = spa_last_synced_txg(data->zcd_spa);
4412 if (data->zcd_txg > synced_txg)
4413 fatal(0, "commit callback of txg %" PRIu64 " called prematurely"
4414 ", last synced txg = %" PRIu64 "\n", data->zcd_txg,
4417 data->zcd_called = B_TRUE;
4419 if (error == ECANCELED) {
4420 ASSERT0(data->zcd_txg);
4421 ASSERT(!data->zcd_added);
4424 * The private callback data should be destroyed here, but
4425 * since we are going to check the zcd_called field after
4426 * dmu_tx_abort(), we will destroy it there.
4431 /* Was this callback added to the global callback list? */
4432 if (!data->zcd_added)
4435 ASSERT3U(data->zcd_txg, !=, 0);
4437 /* Remove our callback from the list */
4438 (void) mutex_lock(&zcl.zcl_callbacks_lock);
4439 list_remove(&zcl.zcl_callbacks, data);
4440 (void) mutex_unlock(&zcl.zcl_callbacks_lock);
4443 umem_free(data, sizeof (ztest_cb_data_t));
4446 /* Allocate and initialize callback data structure */
4447 static ztest_cb_data_t *
4448 ztest_create_cb_data(objset_t *os, uint64_t txg)
4450 ztest_cb_data_t *cb_data;
4452 cb_data = umem_zalloc(sizeof (ztest_cb_data_t), UMEM_NOFAIL);
4454 cb_data->zcd_txg = txg;
4455 cb_data->zcd_spa = dmu_objset_spa(os);
4461 * If a number of txgs equal to this threshold have been created after a commit
4462 * callback has been registered but not called, then we assume there is an
4463 * implementation bug.
4465 #define ZTEST_COMMIT_CALLBACK_THRESH (TXG_CONCURRENT_STATES + 2)
4468 * Commit callback test.
4471 ztest_dmu_commit_callbacks(ztest_ds_t *zd, uint64_t id)
4473 objset_t *os = zd->zd_os;
4476 ztest_cb_data_t *cb_data[3], *tmp_cb;
4477 uint64_t old_txg, txg;
4480 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
4482 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
4485 tx = dmu_tx_create(os);
4487 cb_data[0] = ztest_create_cb_data(os, 0);
4488 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[0]);
4490 dmu_tx_hold_write(tx, od[0].od_object, 0, sizeof (uint64_t));
4492 /* Every once in a while, abort the transaction on purpose */
4493 if (ztest_random(100) == 0)
4497 error = dmu_tx_assign(tx, TXG_NOWAIT);
4499 txg = error ? 0 : dmu_tx_get_txg(tx);
4501 cb_data[0]->zcd_txg = txg;
4502 cb_data[1] = ztest_create_cb_data(os, txg);
4503 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[1]);
4507 * It's not a strict requirement to call the registered
4508 * callbacks from inside dmu_tx_abort(), but that's what
4509 * it's supposed to happen in the current implementation
4510 * so we will check for that.
4512 for (i = 0; i < 2; i++) {
4513 cb_data[i]->zcd_expected_err = ECANCELED;
4514 VERIFY(!cb_data[i]->zcd_called);
4519 for (i = 0; i < 2; i++) {
4520 VERIFY(cb_data[i]->zcd_called);
4521 umem_free(cb_data[i], sizeof (ztest_cb_data_t));
4527 cb_data[2] = ztest_create_cb_data(os, txg);
4528 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[2]);
4531 * Read existing data to make sure there isn't a future leak.
4533 VERIFY(0 == dmu_read(os, od[0].od_object, 0, sizeof (uint64_t),
4534 &old_txg, DMU_READ_PREFETCH));
4537 fatal(0, "future leak: got %" PRIu64 ", open txg is %" PRIu64,
4540 dmu_write(os, od[0].od_object, 0, sizeof (uint64_t), &txg, tx);
4542 (void) mutex_lock(&zcl.zcl_callbacks_lock);
4545 * Since commit callbacks don't have any ordering requirement and since
4546 * it is theoretically possible for a commit callback to be called
4547 * after an arbitrary amount of time has elapsed since its txg has been
4548 * synced, it is difficult to reliably determine whether a commit
4549 * callback hasn't been called due to high load or due to a flawed
4552 * In practice, we will assume that if after a certain number of txgs a
4553 * commit callback hasn't been called, then most likely there's an
4554 * implementation bug..
4556 tmp_cb = list_head(&zcl.zcl_callbacks);
4557 if (tmp_cb != NULL &&
4558 (txg - ZTEST_COMMIT_CALLBACK_THRESH) > tmp_cb->zcd_txg) {
4559 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4560 PRIu64 ", open txg: %" PRIu64 "\n", tmp_cb->zcd_txg, txg);
4564 * Let's find the place to insert our callbacks.
4566 * Even though the list is ordered by txg, it is possible for the
4567 * insertion point to not be the end because our txg may already be
4568 * quiescing at this point and other callbacks in the open txg
4569 * (from other objsets) may have sneaked in.
4571 tmp_cb = list_tail(&zcl.zcl_callbacks);
4572 while (tmp_cb != NULL && tmp_cb->zcd_txg > txg)
4573 tmp_cb = list_prev(&zcl.zcl_callbacks, tmp_cb);
4575 /* Add the 3 callbacks to the list */
4576 for (i = 0; i < 3; i++) {
4578 list_insert_head(&zcl.zcl_callbacks, cb_data[i]);
4580 list_insert_after(&zcl.zcl_callbacks, tmp_cb,
4583 cb_data[i]->zcd_added = B_TRUE;
4584 VERIFY(!cb_data[i]->zcd_called);
4586 tmp_cb = cb_data[i];
4589 (void) mutex_unlock(&zcl.zcl_callbacks_lock);
4596 ztest_dsl_prop_get_set(ztest_ds_t *zd, uint64_t id)
4598 zfs_prop_t proplist[] = {
4600 ZFS_PROP_COMPRESSION,
4605 (void) rw_rdlock(&ztest_name_lock);
4607 for (int p = 0; p < sizeof (proplist) / sizeof (proplist[0]); p++)
4608 (void) ztest_dsl_prop_set_uint64(zd->zd_name, proplist[p],
4609 ztest_random_dsl_prop(proplist[p]), (int)ztest_random(2));
4611 (void) rw_unlock(&ztest_name_lock);
4616 ztest_spa_prop_get_set(ztest_ds_t *zd, uint64_t id)
4618 nvlist_t *props = NULL;
4620 (void) rw_rdlock(&ztest_name_lock);
4622 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO,
4623 ZIO_DEDUPDITTO_MIN + ztest_random(ZIO_DEDUPDITTO_MIN));
4625 VERIFY0(spa_prop_get(ztest_spa, &props));
4627 if (ztest_opts.zo_verbose >= 6)
4628 dump_nvlist(props, 4);
4632 (void) rw_unlock(&ztest_name_lock);
4636 user_release_one(const char *snapname, const char *holdname)
4638 nvlist_t *snaps, *holds;
4641 snaps = fnvlist_alloc();
4642 holds = fnvlist_alloc();
4643 fnvlist_add_boolean(holds, holdname);
4644 fnvlist_add_nvlist(snaps, snapname, holds);
4645 fnvlist_free(holds);
4646 error = dsl_dataset_user_release(snaps, NULL);
4647 fnvlist_free(snaps);
4652 * Test snapshot hold/release and deferred destroy.
4655 ztest_dmu_snapshot_hold(ztest_ds_t *zd, uint64_t id)
4658 objset_t *os = zd->zd_os;
4662 char clonename[100];
4664 char osname[MAXNAMELEN];
4667 (void) rw_rdlock(&ztest_name_lock);
4669 dmu_objset_name(os, osname);
4671 (void) snprintf(snapname, sizeof (snapname), "sh1_%llu", id);
4672 (void) snprintf(fullname, sizeof (fullname), "%s@%s", osname, snapname);
4673 (void) snprintf(clonename, sizeof (clonename),
4674 "%s/ch1_%llu", osname, id);
4675 (void) snprintf(tag, sizeof (tag), "tag_%llu", id);
4678 * Clean up from any previous run.
4680 error = dsl_destroy_head(clonename);
4681 if (error != ENOENT)
4683 error = user_release_one(fullname, tag);
4684 if (error != ESRCH && error != ENOENT)
4686 error = dsl_destroy_snapshot(fullname, B_FALSE);
4687 if (error != ENOENT)
4691 * Create snapshot, clone it, mark snap for deferred destroy,
4692 * destroy clone, verify snap was also destroyed.
4694 error = dmu_objset_snapshot_one(osname, snapname);
4696 if (error == ENOSPC) {
4697 ztest_record_enospc("dmu_objset_snapshot");
4700 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
4703 error = dmu_objset_clone(clonename, fullname);
4705 if (error == ENOSPC) {
4706 ztest_record_enospc("dmu_objset_clone");
4709 fatal(0, "dmu_objset_clone(%s) = %d", clonename, error);
4712 error = dsl_destroy_snapshot(fullname, B_TRUE);
4714 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4718 error = dsl_destroy_head(clonename);
4720 fatal(0, "dsl_destroy_head(%s) = %d", clonename, error);
4722 error = dmu_objset_hold(fullname, FTAG, &origin);
4723 if (error != ENOENT)
4724 fatal(0, "dmu_objset_hold(%s) = %d", fullname, error);
4727 * Create snapshot, add temporary hold, verify that we can't
4728 * destroy a held snapshot, mark for deferred destroy,
4729 * release hold, verify snapshot was destroyed.
4731 error = dmu_objset_snapshot_one(osname, snapname);
4733 if (error == ENOSPC) {
4734 ztest_record_enospc("dmu_objset_snapshot");
4737 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
4740 holds = fnvlist_alloc();
4741 fnvlist_add_string(holds, fullname, tag);
4742 error = dsl_dataset_user_hold(holds, 0, NULL);
4743 fnvlist_free(holds);
4745 if (error == ENOSPC) {
4746 ztest_record_enospc("dsl_dataset_user_hold");
4749 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
4750 fullname, tag, error);
4753 error = dsl_destroy_snapshot(fullname, B_FALSE);
4754 if (error != EBUSY) {
4755 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
4759 error = dsl_destroy_snapshot(fullname, B_TRUE);
4761 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4765 error = user_release_one(fullname, tag);
4767 fatal(0, "user_release_one(%s, %s) = %d", fullname, tag, error);
4769 VERIFY3U(dmu_objset_hold(fullname, FTAG, &origin), ==, ENOENT);
4772 (void) rw_unlock(&ztest_name_lock);
4776 * Inject random faults into the on-disk data.
4780 ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
4782 ztest_shared_t *zs = ztest_shared;
4783 spa_t *spa = ztest_spa;
4787 uint64_t bad = 0x1990c0ffeedecadeULL;
4789 char path0[MAXPATHLEN];
4790 char pathrand[MAXPATHLEN];
4792 int bshift = SPA_MAXBLOCKSHIFT + 2; /* don't scrog all labels */
4798 boolean_t islog = B_FALSE;
4800 VERIFY(mutex_lock(&ztest_vdev_lock) == 0);
4801 maxfaults = MAXFAULTS();
4802 leaves = MAX(zs->zs_mirrors, 1) * ztest_opts.zo_raidz;
4803 mirror_save = zs->zs_mirrors;
4804 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
4806 ASSERT(leaves >= 1);
4809 * Grab the name lock as reader. There are some operations
4810 * which don't like to have their vdevs changed while
4811 * they are in progress (i.e. spa_change_guid). Those
4812 * operations will have grabbed the name lock as writer.
4814 (void) rw_rdlock(&ztest_name_lock);
4817 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4819 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
4821 if (ztest_random(2) == 0) {
4823 * Inject errors on a normal data device or slog device.
4825 top = ztest_random_vdev_top(spa, B_TRUE);
4826 leaf = ztest_random(leaves) + zs->zs_splits;
4829 * Generate paths to the first leaf in this top-level vdev,
4830 * and to the random leaf we selected. We'll induce transient
4831 * write failures and random online/offline activity on leaf 0,
4832 * and we'll write random garbage to the randomly chosen leaf.
4834 (void) snprintf(path0, sizeof (path0), ztest_dev_template,
4835 ztest_opts.zo_dir, ztest_opts.zo_pool,
4836 top * leaves + zs->zs_splits);
4837 (void) snprintf(pathrand, sizeof (pathrand), ztest_dev_template,
4838 ztest_opts.zo_dir, ztest_opts.zo_pool,
4839 top * leaves + leaf);
4841 vd0 = vdev_lookup_by_path(spa->spa_root_vdev, path0);
4842 if (vd0 != NULL && vd0->vdev_top->vdev_islog)
4846 * If the top-level vdev needs to be resilvered
4847 * then we only allow faults on the device that is
4850 if (vd0 != NULL && maxfaults != 1 &&
4851 (!vdev_resilver_needed(vd0->vdev_top, NULL, NULL) ||
4852 vd0->vdev_resilver_txg != 0)) {
4854 * Make vd0 explicitly claim to be unreadable,
4855 * or unwriteable, or reach behind its back
4856 * and close the underlying fd. We can do this if
4857 * maxfaults == 0 because we'll fail and reexecute,
4858 * and we can do it if maxfaults >= 2 because we'll
4859 * have enough redundancy. If maxfaults == 1, the
4860 * combination of this with injection of random data
4861 * corruption below exceeds the pool's fault tolerance.
4863 vdev_file_t *vf = vd0->vdev_tsd;
4865 if (vf != NULL && ztest_random(3) == 0) {
4866 (void) close(vf->vf_vnode->v_fd);
4867 vf->vf_vnode->v_fd = -1;
4868 } else if (ztest_random(2) == 0) {
4869 vd0->vdev_cant_read = B_TRUE;
4871 vd0->vdev_cant_write = B_TRUE;
4873 guid0 = vd0->vdev_guid;
4877 * Inject errors on an l2cache device.
4879 spa_aux_vdev_t *sav = &spa->spa_l2cache;
4881 if (sav->sav_count == 0) {
4882 spa_config_exit(spa, SCL_STATE, FTAG);
4883 (void) rw_unlock(&ztest_name_lock);
4886 vd0 = sav->sav_vdevs[ztest_random(sav->sav_count)];
4887 guid0 = vd0->vdev_guid;
4888 (void) strcpy(path0, vd0->vdev_path);
4889 (void) strcpy(pathrand, vd0->vdev_path);
4893 maxfaults = INT_MAX; /* no limit on cache devices */
4896 spa_config_exit(spa, SCL_STATE, FTAG);
4897 (void) rw_unlock(&ztest_name_lock);
4900 * If we can tolerate two or more faults, or we're dealing
4901 * with a slog, randomly online/offline vd0.
4903 if ((maxfaults >= 2 || islog) && guid0 != 0) {
4904 if (ztest_random(10) < 6) {
4905 int flags = (ztest_random(2) == 0 ?
4906 ZFS_OFFLINE_TEMPORARY : 0);
4909 * We have to grab the zs_name_lock as writer to
4910 * prevent a race between offlining a slog and
4911 * destroying a dataset. Offlining the slog will
4912 * grab a reference on the dataset which may cause
4913 * dmu_objset_destroy() to fail with EBUSY thus
4914 * leaving the dataset in an inconsistent state.
4917 (void) rw_wrlock(&ztest_name_lock);
4919 VERIFY(vdev_offline(spa, guid0, flags) != EBUSY);
4922 (void) rw_unlock(&ztest_name_lock);
4925 * Ideally we would like to be able to randomly
4926 * call vdev_[on|off]line without holding locks
4927 * to force unpredictable failures but the side
4928 * effects of vdev_[on|off]line prevent us from
4929 * doing so. We grab the ztest_vdev_lock here to
4930 * prevent a race between injection testing and
4933 VERIFY(mutex_lock(&ztest_vdev_lock) == 0);
4934 (void) vdev_online(spa, guid0, 0, NULL);
4935 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
4943 * We have at least single-fault tolerance, so inject data corruption.
4945 fd = open(pathrand, O_RDWR);
4947 if (fd == -1) /* we hit a gap in the device namespace */
4950 fsize = lseek(fd, 0, SEEK_END);
4952 while (--iters != 0) {
4953 offset = ztest_random(fsize / (leaves << bshift)) *
4954 (leaves << bshift) + (leaf << bshift) +
4955 (ztest_random(1ULL << (bshift - 1)) & -8ULL);
4957 if (offset >= fsize)
4960 VERIFY(mutex_lock(&ztest_vdev_lock) == 0);
4961 if (mirror_save != zs->zs_mirrors) {
4962 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
4967 if (pwrite(fd, &bad, sizeof (bad), offset) != sizeof (bad))
4968 fatal(1, "can't inject bad word at 0x%llx in %s",
4971 VERIFY(mutex_unlock(&ztest_vdev_lock) == 0);
4973 if (ztest_opts.zo_verbose >= 7)
4974 (void) printf("injected bad word into %s,"
4975 " offset 0x%llx\n", pathrand, (u_longlong_t)offset);
4982 * Verify that DDT repair works as expected.
4985 ztest_ddt_repair(ztest_ds_t *zd, uint64_t id)
4987 ztest_shared_t *zs = ztest_shared;
4988 spa_t *spa = ztest_spa;
4989 objset_t *os = zd->zd_os;
4991 uint64_t object, blocksize, txg, pattern, psize;
4992 enum zio_checksum checksum = spa_dedup_checksum(spa);
4997 int copies = 2 * ZIO_DEDUPDITTO_MIN;
4999 blocksize = ztest_random_blocksize();
5000 blocksize = MIN(blocksize, 2048); /* because we write so many */
5002 ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
5004 if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
5008 * Take the name lock as writer to prevent anyone else from changing
5009 * the pool and dataset properies we need to maintain during this test.
5011 (void) rw_wrlock(&ztest_name_lock);
5013 if (ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_DEDUP, checksum,
5015 ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_COPIES, 1,
5017 (void) rw_unlock(&ztest_name_lock);
5021 object = od[0].od_object;
5022 blocksize = od[0].od_blocksize;
5023 pattern = zs->zs_guid ^ dmu_objset_fsid_guid(os);
5025 ASSERT(object != 0);
5027 tx = dmu_tx_create(os);
5028 dmu_tx_hold_write(tx, object, 0, copies * blocksize);
5029 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
5031 (void) rw_unlock(&ztest_name_lock);
5036 * Write all the copies of our block.
5038 for (int i = 0; i < copies; i++) {
5039 uint64_t offset = i * blocksize;
5040 int error = dmu_buf_hold(os, object, offset, FTAG, &db,
5041 DMU_READ_NO_PREFETCH);
5043 fatal(B_FALSE, "dmu_buf_hold(%p, %llu, %llu) = %u",
5044 os, (long long)object, (long long) offset, error);
5046 ASSERT(db->db_offset == offset);
5047 ASSERT(db->db_size == blocksize);
5048 ASSERT(ztest_pattern_match(db->db_data, db->db_size, pattern) ||
5049 ztest_pattern_match(db->db_data, db->db_size, 0ULL));
5050 dmu_buf_will_fill(db, tx);
5051 ztest_pattern_set(db->db_data, db->db_size, pattern);
5052 dmu_buf_rele(db, FTAG);
5056 txg_wait_synced(spa_get_dsl(spa), txg);
5059 * Find out what block we got.
5061 VERIFY0(dmu_buf_hold(os, object, 0, FTAG, &db,
5062 DMU_READ_NO_PREFETCH));
5063 blk = *((dmu_buf_impl_t *)db)->db_blkptr;
5064 dmu_buf_rele(db, FTAG);
5067 * Damage the block. Dedup-ditto will save us when we read it later.
5069 psize = BP_GET_PSIZE(&blk);
5070 buf = zio_buf_alloc(psize);
5071 ztest_pattern_set(buf, psize, ~pattern);
5073 (void) zio_wait(zio_rewrite(NULL, spa, 0, &blk,
5074 buf, psize, NULL, NULL, ZIO_PRIORITY_SYNC_WRITE,
5075 ZIO_FLAG_CANFAIL | ZIO_FLAG_INDUCE_DAMAGE, NULL));
5077 zio_buf_free(buf, psize);
5079 (void) rw_unlock(&ztest_name_lock);
5087 ztest_scrub(ztest_ds_t *zd, uint64_t id)
5089 spa_t *spa = ztest_spa;
5091 (void) spa_scan(spa, POOL_SCAN_SCRUB);
5092 (void) poll(NULL, 0, 100); /* wait a moment, then force a restart */
5093 (void) spa_scan(spa, POOL_SCAN_SCRUB);
5097 * Change the guid for the pool.
5101 ztest_reguid(ztest_ds_t *zd, uint64_t id)
5103 spa_t *spa = ztest_spa;
5104 uint64_t orig, load;
5107 orig = spa_guid(spa);
5108 load = spa_load_guid(spa);
5110 (void) rw_wrlock(&ztest_name_lock);
5111 error = spa_change_guid(spa);
5112 (void) rw_unlock(&ztest_name_lock);
5117 if (ztest_opts.zo_verbose >= 4) {
5118 (void) printf("Changed guid old %llu -> %llu\n",
5119 (u_longlong_t)orig, (u_longlong_t)spa_guid(spa));
5122 VERIFY3U(orig, !=, spa_guid(spa));
5123 VERIFY3U(load, ==, spa_load_guid(spa));
5127 * Rename the pool to a different name and then rename it back.
5131 ztest_spa_rename(ztest_ds_t *zd, uint64_t id)
5133 char *oldname, *newname;
5136 (void) rw_wrlock(&ztest_name_lock);
5138 oldname = ztest_opts.zo_pool;
5139 newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
5140 (void) strcpy(newname, oldname);
5141 (void) strcat(newname, "_tmp");
5146 VERIFY3U(0, ==, spa_rename(oldname, newname));
5149 * Try to open it under the old name, which shouldn't exist
5151 VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
5154 * Open it under the new name and make sure it's still the same spa_t.
5156 VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
5158 ASSERT(spa == ztest_spa);
5159 spa_close(spa, FTAG);
5162 * Rename it back to the original
5164 VERIFY3U(0, ==, spa_rename(newname, oldname));
5167 * Make sure it can still be opened
5169 VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
5171 ASSERT(spa == ztest_spa);
5172 spa_close(spa, FTAG);
5174 umem_free(newname, strlen(newname) + 1);
5176 (void) rw_unlock(&ztest_name_lock);
5180 * Verify pool integrity by running zdb.
5183 ztest_run_zdb(char *pool)
5186 char zdb[MAXPATHLEN + MAXNAMELEN + 20];
5194 strlcpy(zdb, "/usr/bin/ztest", sizeof(zdb));
5196 /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
5197 bin = strstr(zdb, "/usr/bin/");
5198 ztest = strstr(bin, "/ztest");
5200 isalen = ztest - isa;
5204 "/usr/sbin%.*s/zdb -bcc%s%s -d -U %s %s",
5207 ztest_opts.zo_verbose >= 3 ? "s" : "",
5208 ztest_opts.zo_verbose >= 4 ? "v" : "",
5213 if (ztest_opts.zo_verbose >= 5)
5214 (void) printf("Executing %s\n", strstr(zdb, "zdb "));
5216 fp = popen(zdb, "r");
5219 while (fgets(zbuf, sizeof (zbuf), fp) != NULL)
5220 if (ztest_opts.zo_verbose >= 3)
5221 (void) printf("%s", zbuf);
5223 status = pclose(fp);
5228 ztest_dump_core = 0;
5229 if (WIFEXITED(status))
5230 fatal(0, "'%s' exit code %d", zdb, WEXITSTATUS(status));
5232 fatal(0, "'%s' died with signal %d", zdb, WTERMSIG(status));
5236 ztest_walk_pool_directory(char *header)
5240 if (ztest_opts.zo_verbose >= 6)
5241 (void) printf("%s\n", header);
5243 mutex_enter(&spa_namespace_lock);
5244 while ((spa = spa_next(spa)) != NULL)
5245 if (ztest_opts.zo_verbose >= 6)
5246 (void) printf("\t%s\n", spa_name(spa));
5247 mutex_exit(&spa_namespace_lock);
5251 ztest_spa_import_export(char *oldname, char *newname)
5253 nvlist_t *config, *newconfig;
5258 if (ztest_opts.zo_verbose >= 4) {
5259 (void) printf("import/export: old = %s, new = %s\n",
5264 * Clean up from previous runs.
5266 (void) spa_destroy(newname);
5269 * Get the pool's configuration and guid.
5271 VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
5274 * Kick off a scrub to tickle scrub/export races.
5276 if (ztest_random(2) == 0)
5277 (void) spa_scan(spa, POOL_SCAN_SCRUB);
5279 pool_guid = spa_guid(spa);
5280 spa_close(spa, FTAG);
5282 ztest_walk_pool_directory("pools before export");
5287 VERIFY3U(0, ==, spa_export(oldname, &config, B_FALSE, B_FALSE));
5289 ztest_walk_pool_directory("pools after export");
5294 newconfig = spa_tryimport(config);
5295 ASSERT(newconfig != NULL);
5296 nvlist_free(newconfig);
5299 * Import it under the new name.
5301 error = spa_import(newname, config, NULL, 0);
5303 dump_nvlist(config, 0);
5304 fatal(B_FALSE, "couldn't import pool %s as %s: error %u",
5305 oldname, newname, error);
5308 ztest_walk_pool_directory("pools after import");
5311 * Try to import it again -- should fail with EEXIST.
5313 VERIFY3U(EEXIST, ==, spa_import(newname, config, NULL, 0));
5316 * Try to import it under a different name -- should fail with EEXIST.
5318 VERIFY3U(EEXIST, ==, spa_import(oldname, config, NULL, 0));
5321 * Verify that the pool is no longer visible under the old name.
5323 VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
5326 * Verify that we can open and close the pool using the new name.
5328 VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
5329 ASSERT(pool_guid == spa_guid(spa));
5330 spa_close(spa, FTAG);
5332 nvlist_free(config);
5336 ztest_resume(spa_t *spa)
5338 if (spa_suspended(spa) && ztest_opts.zo_verbose >= 6)
5339 (void) printf("resuming from suspended state\n");
5340 spa_vdev_state_enter(spa, SCL_NONE);
5341 vdev_clear(spa, NULL);
5342 (void) spa_vdev_state_exit(spa, NULL, 0);
5343 (void) zio_resume(spa);
5347 ztest_resume_thread(void *arg)
5351 while (!ztest_exiting) {
5352 if (spa_suspended(spa))
5354 (void) poll(NULL, 0, 100);
5360 ztest_deadman_thread(void *arg)
5362 ztest_shared_t *zs = arg;
5363 spa_t *spa = ztest_spa;
5364 hrtime_t delta, total = 0;
5367 delta = zs->zs_thread_stop - zs->zs_thread_start +
5368 MSEC2NSEC(zfs_deadman_synctime_ms);
5370 (void) poll(NULL, 0, (int)NSEC2MSEC(delta));
5373 * If the pool is suspended then fail immediately. Otherwise,
5374 * check to see if the pool is making any progress. If
5375 * vdev_deadman() discovers that there hasn't been any recent
5376 * I/Os then it will end up aborting the tests.
5378 if (spa_suspended(spa) || spa->spa_root_vdev == NULL) {
5379 fatal(0, "aborting test after %llu seconds because "
5380 "pool has transitioned to a suspended state.",
5381 zfs_deadman_synctime_ms / 1000);
5384 vdev_deadman(spa->spa_root_vdev);
5386 total += zfs_deadman_synctime_ms/1000;
5387 (void) printf("ztest has been running for %lld seconds\n",
5393 ztest_execute(int test, ztest_info_t *zi, uint64_t id)
5395 ztest_ds_t *zd = &ztest_ds[id % ztest_opts.zo_datasets];
5396 ztest_shared_callstate_t *zc = ZTEST_GET_SHARED_CALLSTATE(test);
5397 hrtime_t functime = gethrtime();
5399 for (int i = 0; i < zi->zi_iters; i++)
5400 zi->zi_func(zd, id);
5402 functime = gethrtime() - functime;
5404 atomic_add_64(&zc->zc_count, 1);
5405 atomic_add_64(&zc->zc_time, functime);
5407 if (ztest_opts.zo_verbose >= 4) {
5409 (void) dladdr((void *)zi->zi_func, &dli);
5410 (void) printf("%6.2f sec in %s\n",
5411 (double)functime / NANOSEC, dli.dli_sname);
5416 ztest_thread(void *arg)
5419 uint64_t id = (uintptr_t)arg;
5420 ztest_shared_t *zs = ztest_shared;
5424 ztest_shared_callstate_t *zc;
5426 while ((now = gethrtime()) < zs->zs_thread_stop) {
5428 * See if it's time to force a crash.
5430 if (now > zs->zs_thread_kill)
5434 * If we're getting ENOSPC with some regularity, stop.
5436 if (zs->zs_enospc_count > 10)
5440 * Pick a random function to execute.
5442 rand = ztest_random(ZTEST_FUNCS);
5443 zi = &ztest_info[rand];
5444 zc = ZTEST_GET_SHARED_CALLSTATE(rand);
5445 call_next = zc->zc_next;
5447 if (now >= call_next &&
5448 atomic_cas_64(&zc->zc_next, call_next, call_next +
5449 ztest_random(2 * zi->zi_interval[0] + 1)) == call_next) {
5450 ztest_execute(rand, zi, id);
5458 ztest_dataset_name(char *dsname, char *pool, int d)
5460 (void) snprintf(dsname, MAXNAMELEN, "%s/ds_%d", pool, d);
5464 ztest_dataset_destroy(int d)
5466 char name[MAXNAMELEN];
5468 ztest_dataset_name(name, ztest_opts.zo_pool, d);
5470 if (ztest_opts.zo_verbose >= 3)
5471 (void) printf("Destroying %s to free up space\n", name);
5474 * Cleanup any non-standard clones and snapshots. In general,
5475 * ztest thread t operates on dataset (t % zopt_datasets),
5476 * so there may be more than one thing to clean up.
5478 for (int t = d; t < ztest_opts.zo_threads;
5479 t += ztest_opts.zo_datasets) {
5480 ztest_dsl_dataset_cleanup(name, t);
5483 (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
5484 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
5488 ztest_dataset_dirobj_verify(ztest_ds_t *zd)
5490 uint64_t usedobjs, dirobjs, scratch;
5493 * ZTEST_DIROBJ is the object directory for the entire dataset.
5494 * Therefore, the number of objects in use should equal the
5495 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5496 * If not, we have an object leak.
5498 * Note that we can only check this in ztest_dataset_open(),
5499 * when the open-context and syncing-context values agree.
5500 * That's because zap_count() returns the open-context value,
5501 * while dmu_objset_space() returns the rootbp fill count.
5503 VERIFY3U(0, ==, zap_count(zd->zd_os, ZTEST_DIROBJ, &dirobjs));
5504 dmu_objset_space(zd->zd_os, &scratch, &scratch, &usedobjs, &scratch);
5505 ASSERT3U(dirobjs + 1, ==, usedobjs);
5509 ztest_dataset_open(int d)
5511 ztest_ds_t *zd = &ztest_ds[d];
5512 uint64_t committed_seq = ZTEST_GET_SHARED_DS(d)->zd_seq;
5515 char name[MAXNAMELEN];
5518 ztest_dataset_name(name, ztest_opts.zo_pool, d);
5520 (void) rw_rdlock(&ztest_name_lock);
5522 error = ztest_dataset_create(name);
5523 if (error == ENOSPC) {
5524 (void) rw_unlock(&ztest_name_lock);
5525 ztest_record_enospc(FTAG);
5528 ASSERT(error == 0 || error == EEXIST);
5530 VERIFY0(dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, zd, &os));
5531 (void) rw_unlock(&ztest_name_lock);
5533 ztest_zd_init(zd, ZTEST_GET_SHARED_DS(d), os);
5535 zilog = zd->zd_zilog;
5537 if (zilog->zl_header->zh_claim_lr_seq != 0 &&
5538 zilog->zl_header->zh_claim_lr_seq < committed_seq)
5539 fatal(0, "missing log records: claimed %llu < committed %llu",
5540 zilog->zl_header->zh_claim_lr_seq, committed_seq);
5542 ztest_dataset_dirobj_verify(zd);
5544 zil_replay(os, zd, ztest_replay_vector);
5546 ztest_dataset_dirobj_verify(zd);
5548 if (ztest_opts.zo_verbose >= 6)
5549 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5551 (u_longlong_t)zilog->zl_parse_blk_count,
5552 (u_longlong_t)zilog->zl_parse_lr_count,
5553 (u_longlong_t)zilog->zl_replaying_seq);
5555 zilog = zil_open(os, ztest_get_data);
5557 if (zilog->zl_replaying_seq != 0 &&
5558 zilog->zl_replaying_seq < committed_seq)
5559 fatal(0, "missing log records: replayed %llu < committed %llu",
5560 zilog->zl_replaying_seq, committed_seq);
5566 ztest_dataset_close(int d)
5568 ztest_ds_t *zd = &ztest_ds[d];
5570 zil_close(zd->zd_zilog);
5571 dmu_objset_disown(zd->zd_os, zd);
5577 * Kick off threads to run tests on all datasets in parallel.
5580 ztest_run(ztest_shared_t *zs)
5585 thread_t resume_tid;
5588 ztest_exiting = B_FALSE;
5591 * Initialize parent/child shared state.
5593 VERIFY(_mutex_init(&ztest_vdev_lock, USYNC_THREAD, NULL) == 0);
5594 VERIFY(rwlock_init(&ztest_name_lock, USYNC_THREAD, NULL) == 0);
5596 zs->zs_thread_start = gethrtime();
5597 zs->zs_thread_stop =
5598 zs->zs_thread_start + ztest_opts.zo_passtime * NANOSEC;
5599 zs->zs_thread_stop = MIN(zs->zs_thread_stop, zs->zs_proc_stop);
5600 zs->zs_thread_kill = zs->zs_thread_stop;
5601 if (ztest_random(100) < ztest_opts.zo_killrate) {
5602 zs->zs_thread_kill -=
5603 ztest_random(ztest_opts.zo_passtime * NANOSEC);
5606 (void) _mutex_init(&zcl.zcl_callbacks_lock, USYNC_THREAD, NULL);
5608 list_create(&zcl.zcl_callbacks, sizeof (ztest_cb_data_t),
5609 offsetof(ztest_cb_data_t, zcd_node));
5614 kernel_init(FREAD | FWRITE);
5615 VERIFY0(spa_open(ztest_opts.zo_pool, &spa, FTAG));
5616 spa->spa_debug = B_TRUE;
5617 metaslab_preload_limit = ztest_random(20) + 1;
5620 VERIFY0(dmu_objset_own(ztest_opts.zo_pool,
5621 DMU_OST_ANY, B_TRUE, FTAG, &os));
5622 zs->zs_guid = dmu_objset_fsid_guid(os);
5623 dmu_objset_disown(os, FTAG);
5625 spa->spa_dedup_ditto = 2 * ZIO_DEDUPDITTO_MIN;
5628 * We don't expect the pool to suspend unless maxfaults == 0,
5629 * in which case ztest_fault_inject() temporarily takes away
5630 * the only valid replica.
5632 if (MAXFAULTS() == 0)
5633 spa->spa_failmode = ZIO_FAILURE_MODE_WAIT;
5635 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC;
5638 * Create a thread to periodically resume suspended I/O.
5640 VERIFY(thr_create(0, 0, ztest_resume_thread, spa, THR_BOUND,
5644 * Create a deadman thread to abort() if we hang.
5646 VERIFY(thr_create(0, 0, ztest_deadman_thread, zs, THR_BOUND,
5650 * Verify that we can safely inquire about about any object,
5651 * whether it's allocated or not. To make it interesting,
5652 * we probe a 5-wide window around each power of two.
5653 * This hits all edge cases, including zero and the max.
5655 for (int t = 0; t < 64; t++) {
5656 for (int d = -5; d <= 5; d++) {
5657 error = dmu_object_info(spa->spa_meta_objset,
5658 (1ULL << t) + d, NULL);
5659 ASSERT(error == 0 || error == ENOENT ||
5665 * If we got any ENOSPC errors on the previous run, destroy something.
5667 if (zs->zs_enospc_count != 0) {
5668 int d = ztest_random(ztest_opts.zo_datasets);
5669 ztest_dataset_destroy(d);
5671 zs->zs_enospc_count = 0;
5673 tid = umem_zalloc(ztest_opts.zo_threads * sizeof (thread_t),
5676 if (ztest_opts.zo_verbose >= 4)
5677 (void) printf("starting main threads...\n");
5680 * Kick off all the tests that run in parallel.
5682 for (int t = 0; t < ztest_opts.zo_threads; t++) {
5683 if (t < ztest_opts.zo_datasets &&
5684 ztest_dataset_open(t) != 0)
5686 VERIFY(thr_create(0, 0, ztest_thread, (void *)(uintptr_t)t,
5687 THR_BOUND, &tid[t]) == 0);
5691 * Wait for all of the tests to complete. We go in reverse order
5692 * so we don't close datasets while threads are still using them.
5694 for (int t = ztest_opts.zo_threads - 1; t >= 0; t--) {
5695 VERIFY(thr_join(tid[t], NULL, NULL) == 0);
5696 if (t < ztest_opts.zo_datasets)
5697 ztest_dataset_close(t);
5700 txg_wait_synced(spa_get_dsl(spa), 0);
5702 zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
5703 zs->zs_space = metaslab_class_get_space(spa_normal_class(spa));
5704 zfs_dbgmsg_print(FTAG);
5706 umem_free(tid, ztest_opts.zo_threads * sizeof (thread_t));
5708 /* Kill the resume thread */
5709 ztest_exiting = B_TRUE;
5710 VERIFY(thr_join(resume_tid, NULL, NULL) == 0);
5714 * Right before closing the pool, kick off a bunch of async I/O;
5715 * spa_close() should wait for it to complete.
5717 for (uint64_t object = 1; object < 50; object++)
5718 dmu_prefetch(spa->spa_meta_objset, object, 0, 1ULL << 20);
5720 spa_close(spa, FTAG);
5723 * Verify that we can loop over all pools.
5725 mutex_enter(&spa_namespace_lock);
5726 for (spa = spa_next(NULL); spa != NULL; spa = spa_next(spa))
5727 if (ztest_opts.zo_verbose > 3)
5728 (void) printf("spa_next: found %s\n", spa_name(spa));
5729 mutex_exit(&spa_namespace_lock);
5732 * Verify that we can export the pool and reimport it under a
5735 if (ztest_random(2) == 0) {
5736 char name[MAXNAMELEN];
5737 (void) snprintf(name, MAXNAMELEN, "%s_import",
5738 ztest_opts.zo_pool);
5739 ztest_spa_import_export(ztest_opts.zo_pool, name);
5740 ztest_spa_import_export(name, ztest_opts.zo_pool);
5745 list_destroy(&zcl.zcl_callbacks);
5747 (void) _mutex_destroy(&zcl.zcl_callbacks_lock);
5749 (void) rwlock_destroy(&ztest_name_lock);
5750 (void) _mutex_destroy(&ztest_vdev_lock);
5756 ztest_ds_t *zd = &ztest_ds[0];
5760 if (ztest_opts.zo_verbose >= 3)
5761 (void) printf("testing spa_freeze()...\n");
5763 kernel_init(FREAD | FWRITE);
5764 VERIFY3U(0, ==, spa_open(ztest_opts.zo_pool, &spa, FTAG));
5765 VERIFY3U(0, ==, ztest_dataset_open(0));
5766 spa->spa_debug = B_TRUE;
5770 * Force the first log block to be transactionally allocated.
5771 * We have to do this before we freeze the pool -- otherwise
5772 * the log chain won't be anchored.
5774 while (BP_IS_HOLE(&zd->zd_zilog->zl_header->zh_log)) {
5775 ztest_dmu_object_alloc_free(zd, 0);
5776 zil_commit(zd->zd_zilog, 0);
5779 txg_wait_synced(spa_get_dsl(spa), 0);
5782 * Freeze the pool. This stops spa_sync() from doing anything,
5783 * so that the only way to record changes from now on is the ZIL.
5788 * Because it is hard to predict how much space a write will actually
5789 * require beforehand, we leave ourselves some fudge space to write over
5792 uint64_t capacity = metaslab_class_get_space(spa_normal_class(spa)) / 2;
5795 * Run tests that generate log records but don't alter the pool config
5796 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5797 * We do a txg_wait_synced() after each iteration to force the txg
5798 * to increase well beyond the last synced value in the uberblock.
5799 * The ZIL should be OK with that.
5801 * Run a random number of times less than zo_maxloops and ensure we do
5802 * not run out of space on the pool.
5804 while (ztest_random(10) != 0 &&
5805 numloops++ < ztest_opts.zo_maxloops &&
5806 metaslab_class_get_alloc(spa_normal_class(spa)) < capacity) {
5808 ztest_od_init(&od, 0, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
5809 VERIFY0(ztest_object_init(zd, &od, sizeof (od), B_FALSE));
5810 ztest_io(zd, od.od_object,
5811 ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
5812 txg_wait_synced(spa_get_dsl(spa), 0);
5816 * Commit all of the changes we just generated.
5818 zil_commit(zd->zd_zilog, 0);
5819 txg_wait_synced(spa_get_dsl(spa), 0);
5822 * Close our dataset and close the pool.
5824 ztest_dataset_close(0);
5825 spa_close(spa, FTAG);
5829 * Open and close the pool and dataset to induce log replay.
5831 kernel_init(FREAD | FWRITE);
5832 VERIFY3U(0, ==, spa_open(ztest_opts.zo_pool, &spa, FTAG));
5833 ASSERT(spa_freeze_txg(spa) == UINT64_MAX);
5834 VERIFY3U(0, ==, ztest_dataset_open(0));
5835 ztest_dataset_close(0);
5837 spa->spa_debug = B_TRUE;
5839 txg_wait_synced(spa_get_dsl(spa), 0);
5840 ztest_reguid(NULL, 0);
5842 spa_close(spa, FTAG);
5847 print_time(hrtime_t t, char *timebuf)
5849 hrtime_t s = t / NANOSEC;
5850 hrtime_t m = s / 60;
5851 hrtime_t h = m / 60;
5852 hrtime_t d = h / 24;
5861 (void) sprintf(timebuf,
5862 "%llud%02lluh%02llum%02llus", d, h, m, s);
5864 (void) sprintf(timebuf, "%lluh%02llum%02llus", h, m, s);
5866 (void) sprintf(timebuf, "%llum%02llus", m, s);
5868 (void) sprintf(timebuf, "%llus", s);
5876 VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0);
5877 if (ztest_random(2) == 0)
5879 VERIFY(nvlist_add_uint64(props, "autoreplace", 1) == 0);
5885 * Create a storage pool with the given name and initial vdev size.
5886 * Then test spa_freeze() functionality.
5889 ztest_init(ztest_shared_t *zs)
5892 nvlist_t *nvroot, *props;
5894 VERIFY(_mutex_init(&ztest_vdev_lock, USYNC_THREAD, NULL) == 0);
5895 VERIFY(rwlock_init(&ztest_name_lock, USYNC_THREAD, NULL) == 0);
5897 kernel_init(FREAD | FWRITE);
5900 * Create the storage pool.
5902 (void) spa_destroy(ztest_opts.zo_pool);
5903 ztest_shared->zs_vdev_next_leaf = 0;
5905 zs->zs_mirrors = ztest_opts.zo_mirrors;
5906 nvroot = make_vdev_root(NULL, NULL, NULL, ztest_opts.zo_vdev_size, 0,
5907 0, ztest_opts.zo_raidz, zs->zs_mirrors, 1);
5908 props = make_random_props();
5909 for (int i = 0; i < SPA_FEATURES; i++) {
5911 (void) snprintf(buf, sizeof (buf), "feature@%s",
5912 spa_feature_table[i].fi_uname);
5913 VERIFY3U(0, ==, nvlist_add_uint64(props, buf, 0));
5915 VERIFY3U(0, ==, spa_create(ztest_opts.zo_pool, nvroot, props, NULL));
5916 nvlist_free(nvroot);
5918 VERIFY3U(0, ==, spa_open(ztest_opts.zo_pool, &spa, FTAG));
5919 zs->zs_metaslab_sz =
5920 1ULL << spa->spa_root_vdev->vdev_child[0]->vdev_ms_shift;
5922 spa_close(spa, FTAG);
5926 ztest_run_zdb(ztest_opts.zo_pool);
5930 ztest_run_zdb(ztest_opts.zo_pool);
5932 (void) rwlock_destroy(&ztest_name_lock);
5933 (void) _mutex_destroy(&ztest_vdev_lock);
5939 static char ztest_name_data[] = "/tmp/ztest.data.XXXXXX";
5941 ztest_fd_data = mkstemp(ztest_name_data);
5942 ASSERT3S(ztest_fd_data, >=, 0);
5943 (void) unlink(ztest_name_data);
5948 shared_data_size(ztest_shared_hdr_t *hdr)
5952 size = hdr->zh_hdr_size;
5953 size += hdr->zh_opts_size;
5954 size += hdr->zh_size;
5955 size += hdr->zh_stats_size * hdr->zh_stats_count;
5956 size += hdr->zh_ds_size * hdr->zh_ds_count;
5965 ztest_shared_hdr_t *hdr;
5967 hdr = (void *)mmap(0, P2ROUNDUP(sizeof (*hdr), getpagesize()),
5968 PROT_READ | PROT_WRITE, MAP_SHARED, ztest_fd_data, 0);
5969 ASSERT(hdr != MAP_FAILED);
5971 VERIFY3U(0, ==, ftruncate(ztest_fd_data, sizeof (ztest_shared_hdr_t)));
5973 hdr->zh_hdr_size = sizeof (ztest_shared_hdr_t);
5974 hdr->zh_opts_size = sizeof (ztest_shared_opts_t);
5975 hdr->zh_size = sizeof (ztest_shared_t);
5976 hdr->zh_stats_size = sizeof (ztest_shared_callstate_t);
5977 hdr->zh_stats_count = ZTEST_FUNCS;
5978 hdr->zh_ds_size = sizeof (ztest_shared_ds_t);
5979 hdr->zh_ds_count = ztest_opts.zo_datasets;
5981 size = shared_data_size(hdr);
5982 VERIFY3U(0, ==, ftruncate(ztest_fd_data, size));
5984 (void) munmap((caddr_t)hdr, P2ROUNDUP(sizeof (*hdr), getpagesize()));
5991 ztest_shared_hdr_t *hdr;
5994 hdr = (void *)mmap(0, P2ROUNDUP(sizeof (*hdr), getpagesize()),
5995 PROT_READ, MAP_SHARED, ztest_fd_data, 0);
5996 ASSERT(hdr != MAP_FAILED);
5998 size = shared_data_size(hdr);
6000 (void) munmap((caddr_t)hdr, P2ROUNDUP(sizeof (*hdr), getpagesize()));
6001 hdr = ztest_shared_hdr = (void *)mmap(0, P2ROUNDUP(size, getpagesize()),
6002 PROT_READ | PROT_WRITE, MAP_SHARED, ztest_fd_data, 0);
6003 ASSERT(hdr != MAP_FAILED);
6004 buf = (uint8_t *)hdr;
6006 offset = hdr->zh_hdr_size;
6007 ztest_shared_opts = (void *)&buf[offset];
6008 offset += hdr->zh_opts_size;
6009 ztest_shared = (void *)&buf[offset];
6010 offset += hdr->zh_size;
6011 ztest_shared_callstate = (void *)&buf[offset];
6012 offset += hdr->zh_stats_size * hdr->zh_stats_count;
6013 ztest_shared_ds = (void *)&buf[offset];
6017 exec_child(char *cmd, char *libpath, boolean_t ignorekill, int *statusp)
6021 char *cmdbuf = NULL;
6026 cmdbuf = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
6027 (void) strlcpy(cmdbuf, getexecname(), MAXPATHLEN);
6032 fatal(1, "fork failed");
6034 if (pid == 0) { /* child */
6035 char *emptyargv[2] = { cmd, NULL };
6036 char fd_data_str[12];
6038 struct rlimit rl = { 1024, 1024 };
6039 (void) setrlimit(RLIMIT_NOFILE, &rl);
6041 (void) close(ztest_fd_rand);
6043 snprintf(fd_data_str, 12, "%d", ztest_fd_data));
6044 VERIFY0(setenv("ZTEST_FD_DATA", fd_data_str, 1));
6046 (void) enable_extended_FILE_stdio(-1, -1);
6047 if (libpath != NULL)
6048 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath, 1));
6050 (void) execv(cmd, emptyargv);
6052 (void) execvp(cmd, emptyargv);
6054 ztest_dump_core = B_FALSE;
6055 fatal(B_TRUE, "exec failed: %s", cmd);
6058 if (cmdbuf != NULL) {
6059 umem_free(cmdbuf, MAXPATHLEN);
6063 while (waitpid(pid, &status, 0) != pid)
6065 if (statusp != NULL)
6068 if (WIFEXITED(status)) {
6069 if (WEXITSTATUS(status) != 0) {
6070 (void) fprintf(stderr, "child exited with code %d\n",
6071 WEXITSTATUS(status));
6075 } else if (WIFSIGNALED(status)) {
6076 if (!ignorekill || WTERMSIG(status) != SIGKILL) {
6077 (void) fprintf(stderr, "child died with signal %d\n",
6083 (void) fprintf(stderr, "something strange happened to child\n");
6090 ztest_run_init(void)
6092 ztest_shared_t *zs = ztest_shared;
6094 ASSERT(ztest_opts.zo_init != 0);
6097 * Blow away any existing copy of zpool.cache
6099 (void) remove(spa_config_path);
6102 * Create and initialize our storage pool.
6104 for (int i = 1; i <= ztest_opts.zo_init; i++) {
6105 bzero(zs, sizeof (ztest_shared_t));
6106 if (ztest_opts.zo_verbose >= 3 &&
6107 ztest_opts.zo_init != 1) {
6108 (void) printf("ztest_init(), pass %d\n", i);
6115 main(int argc, char **argv)
6123 ztest_shared_callstate_t *zc;
6129 char *fd_data_str = getenv("ZTEST_FD_DATA");
6131 (void) setvbuf(stdout, NULL, _IOLBF, 0);
6133 dprintf_setup(&argc, argv);
6134 zfs_deadman_synctime_ms = 300000;
6136 ztest_fd_rand = open("/dev/urandom", O_RDONLY);
6137 ASSERT3S(ztest_fd_rand, >=, 0);
6140 process_options(argc, argv);
6145 bcopy(&ztest_opts, ztest_shared_opts,
6146 sizeof (*ztest_shared_opts));
6148 ztest_fd_data = atoi(fd_data_str);
6150 bcopy(ztest_shared_opts, &ztest_opts, sizeof (ztest_opts));
6152 ASSERT3U(ztest_opts.zo_datasets, ==, ztest_shared_hdr->zh_ds_count);
6154 /* Override location of zpool.cache */
6155 VERIFY3U(asprintf((char **)&spa_config_path, "%s/zpool.cache",
6156 ztest_opts.zo_dir), !=, -1);
6158 ztest_ds = umem_alloc(ztest_opts.zo_datasets * sizeof (ztest_ds_t),
6163 metaslab_gang_bang = ztest_opts.zo_metaslab_gang_bang;
6164 metaslab_df_alloc_threshold =
6165 zs->zs_metaslab_df_alloc_threshold;
6174 hasalt = (strlen(ztest_opts.zo_alt_ztest) != 0);
6176 if (ztest_opts.zo_verbose >= 1) {
6177 (void) printf("%llu vdevs, %d datasets, %d threads,"
6178 " %llu seconds...\n",
6179 (u_longlong_t)ztest_opts.zo_vdevs,
6180 ztest_opts.zo_datasets,
6181 ztest_opts.zo_threads,
6182 (u_longlong_t)ztest_opts.zo_time);
6185 cmd = umem_alloc(MAXNAMELEN, UMEM_NOFAIL);
6186 (void) strlcpy(cmd, getexecname(), MAXNAMELEN);
6188 zs->zs_do_init = B_TRUE;
6189 if (strlen(ztest_opts.zo_alt_ztest) != 0) {
6190 if (ztest_opts.zo_verbose >= 1) {
6191 (void) printf("Executing older ztest for "
6192 "initialization: %s\n", ztest_opts.zo_alt_ztest);
6194 VERIFY(!exec_child(ztest_opts.zo_alt_ztest,
6195 ztest_opts.zo_alt_libpath, B_FALSE, NULL));
6197 VERIFY(!exec_child(NULL, NULL, B_FALSE, NULL));
6199 zs->zs_do_init = B_FALSE;
6201 zs->zs_proc_start = gethrtime();
6202 zs->zs_proc_stop = zs->zs_proc_start + ztest_opts.zo_time * NANOSEC;
6204 for (int f = 0; f < ZTEST_FUNCS; f++) {
6205 zi = &ztest_info[f];
6206 zc = ZTEST_GET_SHARED_CALLSTATE(f);
6207 if (zs->zs_proc_start + zi->zi_interval[0] > zs->zs_proc_stop)
6208 zc->zc_next = UINT64_MAX;
6210 zc->zc_next = zs->zs_proc_start +
6211 ztest_random(2 * zi->zi_interval[0] + 1);
6215 * Run the tests in a loop. These tests include fault injection
6216 * to verify that self-healing data works, and forced crashes
6217 * to verify that we never lose on-disk consistency.
6219 while (gethrtime() < zs->zs_proc_stop) {
6224 * Initialize the workload counters for each function.
6226 for (int f = 0; f < ZTEST_FUNCS; f++) {
6227 zc = ZTEST_GET_SHARED_CALLSTATE(f);
6232 /* Set the allocation switch size */
6233 zs->zs_metaslab_df_alloc_threshold =
6234 ztest_random(zs->zs_metaslab_sz / 4) + 1;
6236 if (!hasalt || ztest_random(2) == 0) {
6237 if (hasalt && ztest_opts.zo_verbose >= 1) {
6238 (void) printf("Executing newer ztest: %s\n",
6242 killed = exec_child(cmd, NULL, B_TRUE, &status);
6244 if (hasalt && ztest_opts.zo_verbose >= 1) {
6245 (void) printf("Executing older ztest: %s\n",
6246 ztest_opts.zo_alt_ztest);
6249 killed = exec_child(ztest_opts.zo_alt_ztest,
6250 ztest_opts.zo_alt_libpath, B_TRUE, &status);
6257 if (ztest_opts.zo_verbose >= 1) {
6258 hrtime_t now = gethrtime();
6260 now = MIN(now, zs->zs_proc_stop);
6261 print_time(zs->zs_proc_stop - now, timebuf);
6262 nicenum(zs->zs_space, numbuf);
6264 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6265 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6267 WIFEXITED(status) ? "Complete" : "SIGKILL",
6268 (u_longlong_t)zs->zs_enospc_count,
6269 100.0 * zs->zs_alloc / zs->zs_space,
6271 100.0 * (now - zs->zs_proc_start) /
6272 (ztest_opts.zo_time * NANOSEC), timebuf);
6275 if (ztest_opts.zo_verbose >= 2) {
6276 (void) printf("\nWorkload summary:\n\n");
6277 (void) printf("%7s %9s %s\n",
6278 "Calls", "Time", "Function");
6279 (void) printf("%7s %9s %s\n",
6280 "-----", "----", "--------");
6281 for (int f = 0; f < ZTEST_FUNCS; f++) {
6284 zi = &ztest_info[f];
6285 zc = ZTEST_GET_SHARED_CALLSTATE(f);
6286 print_time(zc->zc_time, timebuf);
6287 (void) dladdr((void *)zi->zi_func, &dli);
6288 (void) printf("%7llu %9s %s\n",
6289 (u_longlong_t)zc->zc_count, timebuf,
6292 (void) printf("\n");
6296 * It's possible that we killed a child during a rename test,
6297 * in which case we'll have a 'ztest_tmp' pool lying around
6298 * instead of 'ztest'. Do a blind rename in case this happened.
6301 if (spa_open(ztest_opts.zo_pool, &spa, FTAG) == 0) {
6302 spa_close(spa, FTAG);
6304 char tmpname[MAXNAMELEN];
6306 kernel_init(FREAD | FWRITE);
6307 (void) snprintf(tmpname, sizeof (tmpname), "%s_tmp",
6308 ztest_opts.zo_pool);
6309 (void) spa_rename(tmpname, ztest_opts.zo_pool);
6313 ztest_run_zdb(ztest_opts.zo_pool);
6316 if (ztest_opts.zo_verbose >= 1) {
6318 (void) printf("%d runs of older ztest: %s\n", older,
6319 ztest_opts.zo_alt_ztest);
6320 (void) printf("%d runs of newer ztest: %s\n", newer,
6323 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6324 kills, iters - kills, (100.0 * kills) / MAX(1, iters));
6327 umem_free(cmd, MAXNAMELEN);