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, 2016 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
29 * The objective of this program is to provide a DMU/ZAP/SPA stress test
30 * that runs entirely in userland, is easy to use, and easy to extend.
32 * The overall design of the ztest program is as follows:
34 * (1) For each major functional area (e.g. adding vdevs to a pool,
35 * creating and destroying datasets, reading and writing objects, etc)
36 * we have a simple routine to test that functionality. These
37 * individual routines do not have to do anything "stressful".
39 * (2) We turn these simple functionality tests into a stress test by
40 * running them all in parallel, with as many threads as desired,
41 * and spread across as many datasets, objects, and vdevs as desired.
43 * (3) While all this is happening, we inject faults into the pool to
44 * verify that self-healing data really works.
46 * (4) Every time we open a dataset, we change its checksum and compression
47 * functions. Thus even individual objects vary from block to block
48 * in which checksum they use and whether they're compressed.
50 * (5) To verify that we never lose on-disk consistency after a crash,
51 * we run the entire test in a child of the main process.
52 * At random times, the child self-immolates with a SIGKILL.
53 * This is the software equivalent of pulling the power cord.
54 * The parent then runs the test again, using the existing
55 * storage pool, as many times as desired. If backwards compatibility
56 * testing is enabled ztest will sometimes run the "older" version
57 * of ztest after a SIGKILL.
59 * (6) To verify that we don't have future leaks or temporal incursions,
60 * many of the functional tests record the transaction group number
61 * as part of their data. When reading old data, they verify that
62 * the transaction group number is less than the current, open txg.
63 * If you add a new test, please do this if applicable.
65 * (7) Threads are created with a reduced stack size, for sanity checking.
66 * Therefore, it's important not to allocate huge buffers on the stack.
68 * When run with no arguments, ztest runs for about five minutes and
69 * produces no output if successful. To get a little bit of information,
70 * specify -V. To get more information, specify -VV, and so on.
72 * To turn this into an overnight stress test, use -T to specify run time.
74 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
75 * to increase the pool capacity, fanout, and overall stress level.
77 * Use the -k option to set the desired frequency of kills.
79 * When ztest invokes itself it passes all relevant information through a
80 * temporary file which is mmap-ed in the child process. This allows shared
81 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
82 * stored at offset 0 of this file and contains information on the size and
83 * number of shared structures in the file. The information stored in this file
84 * must remain backwards compatible with older versions of ztest so that
85 * ztest can invoke them during backwards compatibility testing (-B).
88 #include <sys/zfs_context.h>
94 #include <sys/dmu_objset.h>
100 #include <sys/resource.h>
103 #include <sys/zil_impl.h>
104 #include <sys/zfs_rlock.h>
105 #include <sys/vdev_impl.h>
106 #include <sys/vdev_file.h>
107 #include <sys/spa_impl.h>
108 #include <sys/metaslab_impl.h>
109 #include <sys/dsl_prop.h>
110 #include <sys/dsl_dataset.h>
111 #include <sys/dsl_destroy.h>
112 #include <sys/dsl_scan.h>
113 #include <sys/zio_checksum.h>
114 #include <sys/refcount.h>
115 #include <sys/zfeature.h>
116 #include <sys/dsl_userhold.h>
119 #include <stdio_ext.h>
126 #include <sys/fs/zfs.h>
127 #include <zfs_fletcher.h>
128 #include <libnvpair.h>
130 #include <execinfo.h> /* for backtrace() */
133 static int ztest_fd_data = -1;
134 static int ztest_fd_rand = -1;
136 typedef struct ztest_shared_hdr {
137 uint64_t zh_hdr_size;
138 uint64_t zh_opts_size;
140 uint64_t zh_stats_size;
141 uint64_t zh_stats_count;
143 uint64_t zh_ds_count;
144 } ztest_shared_hdr_t;
146 static ztest_shared_hdr_t *ztest_shared_hdr;
148 typedef struct ztest_shared_opts {
149 char zo_pool[ZFS_MAX_DATASET_NAME_LEN];
150 char zo_dir[ZFS_MAX_DATASET_NAME_LEN];
151 char zo_alt_ztest[MAXNAMELEN];
152 char zo_alt_libpath[MAXNAMELEN];
154 uint64_t zo_vdevtime;
162 uint64_t zo_passtime;
163 uint64_t zo_killrate;
167 uint64_t zo_maxloops;
168 uint64_t zo_metaslab_gang_bang;
169 } ztest_shared_opts_t;
171 static const ztest_shared_opts_t ztest_opts_defaults = {
172 .zo_pool = { 'z', 't', 'e', 's', 't', '\0' },
173 .zo_dir = { '/', 't', 'm', 'p', '\0' },
174 .zo_alt_ztest = { '\0' },
175 .zo_alt_libpath = { '\0' },
177 .zo_ashift = SPA_MINBLOCKSHIFT,
180 .zo_raidz_parity = 1,
181 .zo_vdev_size = SPA_MINDEVSIZE * 4, /* 256m default size */
184 .zo_passtime = 60, /* 60 seconds */
185 .zo_killrate = 70, /* 70% kill rate */
188 .zo_time = 300, /* 5 minutes */
189 .zo_maxloops = 50, /* max loops during spa_freeze() */
190 .zo_metaslab_gang_bang = 32 << 10
193 extern uint64_t metaslab_gang_bang;
194 extern uint64_t metaslab_df_alloc_threshold;
195 extern int metaslab_preload_limit;
196 extern boolean_t zfs_compressed_arc_enabled;
197 extern int zfs_abd_scatter_enabled;
199 static ztest_shared_opts_t *ztest_shared_opts;
200 static ztest_shared_opts_t ztest_opts;
202 typedef struct ztest_shared_ds {
206 static ztest_shared_ds_t *ztest_shared_ds;
207 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
209 #define BT_MAGIC 0x123456789abcdefULL
210 #define MAXFAULTS() \
211 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
215 ZTEST_IO_WRITE_PATTERN,
216 ZTEST_IO_WRITE_ZEROES,
223 typedef struct ztest_block_tag {
227 uint64_t bt_dnodesize;
234 typedef struct bufwad {
252 #define ZTEST_RANGE_LOCKS 64
253 #define ZTEST_OBJECT_LOCKS 64
256 * Object descriptor. Used as a template for object lookup/create/remove.
258 typedef struct ztest_od {
261 dmu_object_type_t od_type;
262 dmu_object_type_t od_crtype;
263 uint64_t od_blocksize;
264 uint64_t od_crblocksize;
265 uint64_t od_crdnodesize;
268 char od_name[ZFS_MAX_DATASET_NAME_LEN];
274 typedef struct ztest_ds {
275 ztest_shared_ds_t *zd_shared;
277 rwlock_t zd_zilog_lock;
279 ztest_od_t *zd_od; /* debugging aid */
280 char zd_name[ZFS_MAX_DATASET_NAME_LEN];
281 kmutex_t zd_dirobj_lock;
282 rll_t zd_object_lock[ZTEST_OBJECT_LOCKS];
283 zll_t zd_range_lock[ZTEST_RANGE_LOCKS];
287 * Per-iteration state.
289 typedef void ztest_func_t(ztest_ds_t *zd, uint64_t id);
291 typedef struct ztest_info {
292 ztest_func_t *zi_func; /* test function */
293 uint64_t zi_iters; /* iterations per execution */
294 uint64_t *zi_interval; /* execute every <interval> seconds */
295 const char *zi_funcname; /* name of test function */
298 typedef struct ztest_shared_callstate {
299 uint64_t zc_count; /* per-pass count */
300 uint64_t zc_time; /* per-pass time */
301 uint64_t zc_next; /* next time to call this function */
302 } ztest_shared_callstate_t;
304 static ztest_shared_callstate_t *ztest_shared_callstate;
305 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
307 ztest_func_t ztest_dmu_read_write;
308 ztest_func_t ztest_dmu_write_parallel;
309 ztest_func_t ztest_dmu_object_alloc_free;
310 ztest_func_t ztest_dmu_commit_callbacks;
311 ztest_func_t ztest_zap;
312 ztest_func_t ztest_zap_parallel;
313 ztest_func_t ztest_zil_commit;
314 ztest_func_t ztest_zil_remount;
315 ztest_func_t ztest_dmu_read_write_zcopy;
316 ztest_func_t ztest_dmu_objset_create_destroy;
317 ztest_func_t ztest_dmu_prealloc;
318 ztest_func_t ztest_fzap;
319 ztest_func_t ztest_dmu_snapshot_create_destroy;
320 ztest_func_t ztest_dsl_prop_get_set;
321 ztest_func_t ztest_spa_prop_get_set;
322 ztest_func_t ztest_spa_create_destroy;
323 ztest_func_t ztest_fault_inject;
324 ztest_func_t ztest_ddt_repair;
325 ztest_func_t ztest_dmu_snapshot_hold;
326 ztest_func_t ztest_spa_rename;
327 ztest_func_t ztest_scrub;
328 ztest_func_t ztest_dsl_dataset_promote_busy;
329 ztest_func_t ztest_vdev_attach_detach;
330 ztest_func_t ztest_vdev_LUN_growth;
331 ztest_func_t ztest_vdev_add_remove;
332 ztest_func_t ztest_vdev_aux_add_remove;
333 ztest_func_t ztest_split_pool;
334 ztest_func_t ztest_reguid;
335 ztest_func_t ztest_spa_upgrade;
336 ztest_func_t ztest_fletcher;
337 ztest_func_t ztest_fletcher_incr;
338 ztest_func_t ztest_verify_dnode_bt;
340 uint64_t zopt_always = 0ULL * NANOSEC; /* all the time */
341 uint64_t zopt_incessant = 1ULL * NANOSEC / 10; /* every 1/10 second */
342 uint64_t zopt_often = 1ULL * NANOSEC; /* every second */
343 uint64_t zopt_sometimes = 10ULL * NANOSEC; /* every 10 seconds */
344 uint64_t zopt_rarely = 60ULL * NANOSEC; /* every 60 seconds */
346 #define ZTI_INIT(func, iters, interval) \
347 { .zi_func = (func), \
348 .zi_iters = (iters), \
349 .zi_interval = (interval), \
350 .zi_funcname = # func }
352 ztest_info_t ztest_info[] = {
353 ZTI_INIT(ztest_dmu_read_write, 1, &zopt_always),
354 ZTI_INIT(ztest_dmu_write_parallel, 10, &zopt_always),
355 ZTI_INIT(ztest_dmu_object_alloc_free, 1, &zopt_always),
356 ZTI_INIT(ztest_dmu_commit_callbacks, 1, &zopt_always),
357 ZTI_INIT(ztest_zap, 30, &zopt_always),
358 ZTI_INIT(ztest_zap_parallel, 100, &zopt_always),
359 ZTI_INIT(ztest_split_pool, 1, &zopt_always),
360 ZTI_INIT(ztest_zil_commit, 1, &zopt_incessant),
361 ZTI_INIT(ztest_zil_remount, 1, &zopt_sometimes),
362 ZTI_INIT(ztest_dmu_read_write_zcopy, 1, &zopt_often),
363 ZTI_INIT(ztest_dmu_objset_create_destroy, 1, &zopt_often),
364 ZTI_INIT(ztest_dsl_prop_get_set, 1, &zopt_often),
365 ZTI_INIT(ztest_spa_prop_get_set, 1, &zopt_sometimes),
367 ZTI_INIT(ztest_dmu_prealloc, 1, &zopt_sometimes),
369 ZTI_INIT(ztest_fzap, 1, &zopt_sometimes),
370 ZTI_INIT(ztest_dmu_snapshot_create_destroy, 1, &zopt_sometimes),
371 ZTI_INIT(ztest_spa_create_destroy, 1, &zopt_sometimes),
372 ZTI_INIT(ztest_fault_inject, 1, &zopt_sometimes),
373 ZTI_INIT(ztest_ddt_repair, 1, &zopt_sometimes),
374 ZTI_INIT(ztest_dmu_snapshot_hold, 1, &zopt_sometimes),
375 ZTI_INIT(ztest_reguid, 1, &zopt_rarely),
376 ZTI_INIT(ztest_spa_rename, 1, &zopt_rarely),
377 ZTI_INIT(ztest_scrub, 1, &zopt_rarely),
378 ZTI_INIT(ztest_spa_upgrade, 1, &zopt_rarely),
379 ZTI_INIT(ztest_dsl_dataset_promote_busy, 1, &zopt_rarely),
380 ZTI_INIT(ztest_vdev_attach_detach, 1, &zopt_sometimes),
381 ZTI_INIT(ztest_vdev_LUN_growth, 1, &zopt_rarely),
382 ZTI_INIT(ztest_vdev_add_remove, 1, &ztest_opts.zo_vdevtime),
383 ZTI_INIT(ztest_vdev_aux_add_remove, 1, &ztest_opts.zo_vdevtime),
384 ZTI_INIT(ztest_fletcher, 1, &zopt_rarely),
385 ZTI_INIT(ztest_fletcher_incr, 1, &zopt_rarely),
386 ZTI_INIT(ztest_verify_dnode_bt, 1, &zopt_sometimes),
389 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
392 * The following struct is used to hold a list of uncalled commit callbacks.
393 * The callbacks are ordered by txg number.
395 typedef struct ztest_cb_list {
396 kmutex_t zcl_callbacks_lock;
397 list_t zcl_callbacks;
401 * Stuff we need to share writably between parent and child.
403 typedef struct ztest_shared {
404 boolean_t zs_do_init;
405 hrtime_t zs_proc_start;
406 hrtime_t zs_proc_stop;
407 hrtime_t zs_thread_start;
408 hrtime_t zs_thread_stop;
409 hrtime_t zs_thread_kill;
410 uint64_t zs_enospc_count;
411 uint64_t zs_vdev_next_leaf;
412 uint64_t zs_vdev_aux;
417 uint64_t zs_metaslab_sz;
418 uint64_t zs_metaslab_df_alloc_threshold;
422 #define ID_PARALLEL -1ULL
424 static char ztest_dev_template[] = "%s/%s.%llua";
425 static char ztest_aux_template[] = "%s/%s.%s.%llu";
426 ztest_shared_t *ztest_shared;
428 static spa_t *ztest_spa = NULL;
429 static ztest_ds_t *ztest_ds;
431 static kmutex_t ztest_vdev_lock;
434 * The ztest_name_lock protects the pool and dataset namespace used by
435 * the individual tests. To modify the namespace, consumers must grab
436 * this lock as writer. Grabbing the lock as reader will ensure that the
437 * namespace does not change while the lock is held.
439 static rwlock_t ztest_name_lock;
441 static boolean_t ztest_dump_core = B_TRUE;
442 static boolean_t ztest_exiting;
444 /* Global commit callback list */
445 static ztest_cb_list_t zcl;
446 /* Commit cb delay */
447 static uint64_t zc_min_txg_delay = UINT64_MAX;
448 static int zc_cb_counter = 0;
451 * Minimum number of commit callbacks that need to be registered for us to check
452 * whether the minimum txg delay is acceptable.
454 #define ZTEST_COMMIT_CB_MIN_REG 100
457 * If a number of txgs equal to this threshold have been created after a commit
458 * callback has been registered but not called, then we assume there is an
459 * implementation bug.
461 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
463 extern uint64_t metaslab_gang_bang;
464 extern uint64_t metaslab_df_alloc_threshold;
467 ZTEST_META_DNODE = 0,
472 static void usage(boolean_t) __NORETURN;
475 * These libumem hooks provide a reasonable set of defaults for the allocator's
476 * debugging facilities.
479 _umem_debug_init(void)
481 return ("default,verbose"); /* $UMEM_DEBUG setting */
485 _umem_logging_init(void)
487 return ("fail,contents"); /* $UMEM_LOGGING setting */
490 #define BACKTRACE_SZ 100
492 static void sig_handler(int signo)
494 struct sigaction action;
495 #ifdef __GLIBC__ /* backtrace() is a GNU extension */
497 void *buffer[BACKTRACE_SZ];
499 nptrs = backtrace(buffer, BACKTRACE_SZ);
500 backtrace_symbols_fd(buffer, nptrs, STDERR_FILENO);
504 * Restore default action and re-raise signal so SIGSEGV and
505 * SIGABRT can trigger a core dump.
507 action.sa_handler = SIG_DFL;
508 sigemptyset(&action.sa_mask);
510 (void) sigaction(signo, &action, NULL);
514 #define FATAL_MSG_SZ 1024
519 fatal(int do_perror, char *message, ...)
522 int save_errno = errno;
525 (void) fflush(stdout);
526 buf = umem_alloc(FATAL_MSG_SZ, UMEM_NOFAIL);
528 va_start(args, message);
529 (void) sprintf(buf, "ztest: ");
531 (void) vsprintf(buf + strlen(buf), message, args);
534 (void) snprintf(buf + strlen(buf), FATAL_MSG_SZ - strlen(buf),
535 ": %s", strerror(save_errno));
537 (void) fprintf(stderr, "%s\n", buf);
538 fatal_msg = buf; /* to ease debugging */
545 str2shift(const char *buf)
547 const char *ends = "BKMGTPEZ";
552 for (i = 0; i < strlen(ends); i++) {
553 if (toupper(buf[0]) == ends[i])
556 if (i == strlen(ends)) {
557 (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n",
561 if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0')) {
564 (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n", buf);
570 nicenumtoull(const char *buf)
575 val = strtoull(buf, &end, 0);
577 (void) fprintf(stderr, "ztest: bad numeric value: %s\n", buf);
579 } else if (end[0] == '.') {
580 double fval = strtod(buf, &end);
581 fval *= pow(2, str2shift(end));
582 if (fval > UINT64_MAX) {
583 (void) fprintf(stderr, "ztest: value too large: %s\n",
587 val = (uint64_t)fval;
589 int shift = str2shift(end);
590 if (shift >= 64 || (val << shift) >> shift != val) {
591 (void) fprintf(stderr, "ztest: value too large: %s\n",
601 usage(boolean_t requested)
603 const ztest_shared_opts_t *zo = &ztest_opts_defaults;
605 char nice_vdev_size[10];
606 char nice_gang_bang[10];
607 FILE *fp = requested ? stdout : stderr;
609 nicenum(zo->zo_vdev_size, nice_vdev_size);
610 nicenum(zo->zo_metaslab_gang_bang, nice_gang_bang);
612 (void) fprintf(fp, "Usage: %s\n"
613 "\t[-v vdevs (default: %llu)]\n"
614 "\t[-s size_of_each_vdev (default: %s)]\n"
615 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
616 "\t[-m mirror_copies (default: %d)]\n"
617 "\t[-r raidz_disks (default: %d)]\n"
618 "\t[-R raidz_parity (default: %d)]\n"
619 "\t[-d datasets (default: %d)]\n"
620 "\t[-t threads (default: %d)]\n"
621 "\t[-g gang_block_threshold (default: %s)]\n"
622 "\t[-i init_count (default: %d)] initialize pool i times\n"
623 "\t[-k kill_percentage (default: %llu%%)]\n"
624 "\t[-p pool_name (default: %s)]\n"
625 "\t[-f dir (default: %s)] file directory for vdev files\n"
626 "\t[-V] verbose (use multiple times for ever more blather)\n"
627 "\t[-E] use existing pool instead of creating new one\n"
628 "\t[-T time (default: %llu sec)] total run time\n"
629 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
630 "\t[-P passtime (default: %llu sec)] time per pass\n"
631 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
632 "\t[-o variable=value] ... set global variable to an unsigned\n"
633 "\t 32-bit integer value\n"
634 "\t[-h] (print help)\n"
637 (u_longlong_t)zo->zo_vdevs, /* -v */
638 nice_vdev_size, /* -s */
639 zo->zo_ashift, /* -a */
640 zo->zo_mirrors, /* -m */
641 zo->zo_raidz, /* -r */
642 zo->zo_raidz_parity, /* -R */
643 zo->zo_datasets, /* -d */
644 zo->zo_threads, /* -t */
645 nice_gang_bang, /* -g */
646 zo->zo_init, /* -i */
647 (u_longlong_t)zo->zo_killrate, /* -k */
648 zo->zo_pool, /* -p */
650 (u_longlong_t)zo->zo_time, /* -T */
651 (u_longlong_t)zo->zo_maxloops, /* -F */
652 (u_longlong_t)zo->zo_passtime);
653 exit(requested ? 0 : 1);
657 process_options(int argc, char **argv)
660 ztest_shared_opts_t *zo = &ztest_opts;
664 char altdir[MAXNAMELEN] = { 0 };
666 bcopy(&ztest_opts_defaults, zo, sizeof (*zo));
668 while ((opt = getopt(argc, argv,
669 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:o:")) != EOF) {
686 value = nicenumtoull(optarg);
690 zo->zo_vdevs = value;
693 zo->zo_vdev_size = MAX(SPA_MINDEVSIZE, value);
696 zo->zo_ashift = value;
699 zo->zo_mirrors = value;
702 zo->zo_raidz = MAX(1, value);
705 zo->zo_raidz_parity = MIN(MAX(value, 1), 3);
708 zo->zo_datasets = MAX(1, value);
711 zo->zo_threads = MAX(1, value);
714 zo->zo_metaslab_gang_bang = MAX(SPA_MINBLOCKSIZE << 1,
721 zo->zo_killrate = value;
724 (void) strlcpy(zo->zo_pool, optarg,
725 sizeof (zo->zo_pool));
728 path = realpath(optarg, NULL);
730 (void) fprintf(stderr, "error: %s: %s\n",
731 optarg, strerror(errno));
734 (void) strlcpy(zo->zo_dir, path,
735 sizeof (zo->zo_dir));
749 zo->zo_passtime = MAX(1, value);
752 zo->zo_maxloops = MAX(1, value);
755 (void) strlcpy(altdir, optarg, sizeof (altdir));
758 if (set_global_var(optarg) != 0)
771 zo->zo_raidz_parity = MIN(zo->zo_raidz_parity, zo->zo_raidz - 1);
774 (zo->zo_vdevs > 0 ? zo->zo_time * NANOSEC / zo->zo_vdevs :
777 if (strlen(altdir) > 0) {
785 cmd = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
786 realaltdir = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
788 VERIFY(NULL != realpath(getexecname(), cmd));
789 if (0 != access(altdir, F_OK)) {
790 ztest_dump_core = B_FALSE;
791 fatal(B_TRUE, "invalid alternate ztest path: %s",
794 VERIFY(NULL != realpath(altdir, realaltdir));
797 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
798 * We want to extract <isa> to determine if we should use
799 * 32 or 64 bit binaries.
801 bin = strstr(cmd, "/usr/bin/");
802 ztest = strstr(bin, "/ztest");
804 isalen = ztest - isa;
805 (void) snprintf(zo->zo_alt_ztest, sizeof (zo->zo_alt_ztest),
806 "%s/usr/bin/%.*s/ztest", realaltdir, isalen, isa);
807 (void) snprintf(zo->zo_alt_libpath, sizeof (zo->zo_alt_libpath),
808 "%s/usr/lib/%.*s", realaltdir, isalen, isa);
810 if (0 != access(zo->zo_alt_ztest, X_OK)) {
811 ztest_dump_core = B_FALSE;
812 fatal(B_TRUE, "invalid alternate ztest: %s",
814 } else if (0 != access(zo->zo_alt_libpath, X_OK)) {
815 ztest_dump_core = B_FALSE;
816 fatal(B_TRUE, "invalid alternate lib directory %s",
820 umem_free(cmd, MAXPATHLEN);
821 umem_free(realaltdir, MAXPATHLEN);
826 ztest_kill(ztest_shared_t *zs)
828 zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(ztest_spa));
829 zs->zs_space = metaslab_class_get_space(spa_normal_class(ztest_spa));
832 * Before we kill off ztest, make sure that the config is updated.
833 * See comment above spa_config_sync().
835 mutex_enter(&spa_namespace_lock);
836 spa_config_sync(ztest_spa, B_FALSE, B_FALSE);
837 mutex_exit(&spa_namespace_lock);
839 (void) kill(getpid(), SIGKILL);
843 ztest_random(uint64_t range)
847 ASSERT3S(ztest_fd_rand, >=, 0);
852 if (read(ztest_fd_rand, &r, sizeof (r)) != sizeof (r))
853 fatal(1, "short read from /dev/urandom");
860 ztest_record_enospc(const char *s)
862 ztest_shared->zs_enospc_count++;
866 ztest_get_ashift(void)
868 if (ztest_opts.zo_ashift == 0)
869 return (SPA_MINBLOCKSHIFT + ztest_random(5));
870 return (ztest_opts.zo_ashift);
874 make_vdev_file(char *path, char *aux, char *pool, size_t size, uint64_t ashift)
880 pathbuf = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
883 ashift = ztest_get_ashift();
889 vdev = ztest_shared->zs_vdev_aux;
890 (void) snprintf(path, MAXPATHLEN,
891 ztest_aux_template, ztest_opts.zo_dir,
892 pool == NULL ? ztest_opts.zo_pool : pool,
895 vdev = ztest_shared->zs_vdev_next_leaf++;
896 (void) snprintf(path, MAXPATHLEN,
897 ztest_dev_template, ztest_opts.zo_dir,
898 pool == NULL ? ztest_opts.zo_pool : pool, vdev);
903 int fd = open(path, O_RDWR | O_CREAT | O_TRUNC, 0666);
905 fatal(1, "can't open %s", path);
906 if (ftruncate(fd, size) != 0)
907 fatal(1, "can't ftruncate %s", path);
911 VERIFY(nvlist_alloc(&file, NV_UNIQUE_NAME, 0) == 0);
912 VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_TYPE, VDEV_TYPE_FILE) == 0);
913 VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_PATH, path) == 0);
914 VERIFY(nvlist_add_uint64(file, ZPOOL_CONFIG_ASHIFT, ashift) == 0);
915 umem_free(pathbuf, MAXPATHLEN);
921 make_vdev_raidz(char *path, char *aux, char *pool, size_t size,
922 uint64_t ashift, int r)
924 nvlist_t *raidz, **child;
928 return (make_vdev_file(path, aux, pool, size, ashift));
929 child = umem_alloc(r * sizeof (nvlist_t *), UMEM_NOFAIL);
931 for (c = 0; c < r; c++)
932 child[c] = make_vdev_file(path, aux, pool, size, ashift);
934 VERIFY(nvlist_alloc(&raidz, NV_UNIQUE_NAME, 0) == 0);
935 VERIFY(nvlist_add_string(raidz, ZPOOL_CONFIG_TYPE,
936 VDEV_TYPE_RAIDZ) == 0);
937 VERIFY(nvlist_add_uint64(raidz, ZPOOL_CONFIG_NPARITY,
938 ztest_opts.zo_raidz_parity) == 0);
939 VERIFY(nvlist_add_nvlist_array(raidz, ZPOOL_CONFIG_CHILDREN,
942 for (c = 0; c < r; c++)
943 nvlist_free(child[c]);
945 umem_free(child, r * sizeof (nvlist_t *));
951 make_vdev_mirror(char *path, char *aux, char *pool, size_t size,
952 uint64_t ashift, int r, int m)
954 nvlist_t *mirror, **child;
958 return (make_vdev_raidz(path, aux, pool, size, ashift, r));
960 child = umem_alloc(m * sizeof (nvlist_t *), UMEM_NOFAIL);
962 for (c = 0; c < m; c++)
963 child[c] = make_vdev_raidz(path, aux, pool, size, ashift, r);
965 VERIFY(nvlist_alloc(&mirror, NV_UNIQUE_NAME, 0) == 0);
966 VERIFY(nvlist_add_string(mirror, ZPOOL_CONFIG_TYPE,
967 VDEV_TYPE_MIRROR) == 0);
968 VERIFY(nvlist_add_nvlist_array(mirror, ZPOOL_CONFIG_CHILDREN,
971 for (c = 0; c < m; c++)
972 nvlist_free(child[c]);
974 umem_free(child, m * sizeof (nvlist_t *));
980 make_vdev_root(char *path, char *aux, char *pool, size_t size, uint64_t ashift,
981 int log, int r, int m, int t)
983 nvlist_t *root, **child;
988 child = umem_alloc(t * sizeof (nvlist_t *), UMEM_NOFAIL);
990 for (c = 0; c < t; c++) {
991 child[c] = make_vdev_mirror(path, aux, pool, size, ashift,
993 VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
997 VERIFY(nvlist_alloc(&root, NV_UNIQUE_NAME, 0) == 0);
998 VERIFY(nvlist_add_string(root, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) == 0);
999 VERIFY(nvlist_add_nvlist_array(root, aux ? aux : ZPOOL_CONFIG_CHILDREN,
1002 for (c = 0; c < t; c++)
1003 nvlist_free(child[c]);
1005 umem_free(child, t * sizeof (nvlist_t *));
1011 * Find a random spa version. Returns back a random spa version in the
1012 * range [initial_version, SPA_VERSION_FEATURES].
1015 ztest_random_spa_version(uint64_t initial_version)
1017 uint64_t version = initial_version;
1019 if (version <= SPA_VERSION_BEFORE_FEATURES) {
1021 ztest_random(SPA_VERSION_BEFORE_FEATURES - version + 1);
1024 if (version > SPA_VERSION_BEFORE_FEATURES)
1025 version = SPA_VERSION_FEATURES;
1027 ASSERT(SPA_VERSION_IS_SUPPORTED(version));
1032 ztest_random_blocksize(void)
1035 * Choose a block size >= the ashift.
1036 * If the SPA supports new MAXBLOCKSIZE, test up to 1MB blocks.
1038 int maxbs = SPA_OLD_MAXBLOCKSHIFT;
1039 if (spa_maxblocksize(ztest_spa) == SPA_MAXBLOCKSIZE)
1041 uint64_t block_shift =
1042 ztest_random(maxbs - ztest_spa->spa_max_ashift + 1);
1043 return (1 << (SPA_MINBLOCKSHIFT + block_shift));
1047 ztest_random_dnodesize(void)
1050 int max_slots = spa_maxdnodesize(ztest_spa) >> DNODE_SHIFT;
1052 if (max_slots == DNODE_MIN_SLOTS)
1053 return (DNODE_MIN_SIZE);
1056 * Weight the random distribution more heavily toward smaller
1057 * dnode sizes since that is more likely to reflect real-world
1060 ASSERT3U(max_slots, >, 4);
1061 switch (ztest_random(10)) {
1063 slots = 5 + ztest_random(max_slots - 4);
1066 slots = 2 + ztest_random(3);
1073 return (slots << DNODE_SHIFT);
1077 ztest_random_ibshift(void)
1079 return (DN_MIN_INDBLKSHIFT +
1080 ztest_random(DN_MAX_INDBLKSHIFT - DN_MIN_INDBLKSHIFT + 1));
1084 ztest_random_vdev_top(spa_t *spa, boolean_t log_ok)
1087 vdev_t *rvd = spa->spa_root_vdev;
1090 ASSERT(spa_config_held(spa, SCL_ALL, RW_READER) != 0);
1093 top = ztest_random(rvd->vdev_children);
1094 tvd = rvd->vdev_child[top];
1095 } while (tvd->vdev_ishole || (tvd->vdev_islog && !log_ok) ||
1096 tvd->vdev_mg == NULL || tvd->vdev_mg->mg_class == NULL);
1102 ztest_random_dsl_prop(zfs_prop_t prop)
1107 value = zfs_prop_random_value(prop, ztest_random(-1ULL));
1108 } while (prop == ZFS_PROP_CHECKSUM && value == ZIO_CHECKSUM_OFF);
1114 ztest_dsl_prop_set_uint64(char *osname, zfs_prop_t prop, uint64_t value,
1117 const char *propname = zfs_prop_to_name(prop);
1118 const char *valname;
1123 error = dsl_prop_set_int(osname, propname,
1124 (inherit ? ZPROP_SRC_NONE : ZPROP_SRC_LOCAL), value);
1126 if (error == ENOSPC) {
1127 ztest_record_enospc(FTAG);
1132 setpoint = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
1133 VERIFY0(dsl_prop_get_integer(osname, propname, &curval, setpoint));
1135 if (ztest_opts.zo_verbose >= 6) {
1138 err = zfs_prop_index_to_string(prop, curval, &valname);
1140 (void) printf("%s %s = %llu at '%s'\n", osname,
1141 propname, (unsigned long long)curval, setpoint);
1143 (void) printf("%s %s = %s at '%s'\n",
1144 osname, propname, valname, setpoint);
1146 umem_free(setpoint, MAXPATHLEN);
1152 ztest_spa_prop_set_uint64(zpool_prop_t prop, uint64_t value)
1154 spa_t *spa = ztest_spa;
1155 nvlist_t *props = NULL;
1158 VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0);
1159 VERIFY(nvlist_add_uint64(props, zpool_prop_to_name(prop), value) == 0);
1161 error = spa_prop_set(spa, props);
1165 if (error == ENOSPC) {
1166 ztest_record_enospc(FTAG);
1176 * Object and range lock mechanics
1179 list_node_t z_lnode;
1180 refcount_t z_refcnt;
1182 zfs_rlock_t z_range_lock;
1187 ztest_znode_t *z_ztznode;
1190 static ztest_znode_t *
1191 ztest_znode_init(uint64_t object)
1193 ztest_znode_t *zp = umem_alloc(sizeof (*zp), UMEM_NOFAIL);
1195 list_link_init(&zp->z_lnode);
1196 refcount_create(&zp->z_refcnt);
1197 zp->z_object = object;
1198 zfs_rlock_init(&zp->z_range_lock);
1204 ztest_znode_fini(ztest_znode_t *zp)
1206 ASSERT(refcount_is_zero(&zp->z_refcnt));
1207 zfs_rlock_destroy(&zp->z_range_lock);
1209 refcount_destroy(&zp->z_refcnt);
1210 list_link_init(&zp->z_lnode);
1211 umem_free(zp, sizeof (*zp));
1215 ztest_zll_init(zll_t *zll)
1217 mutex_init(&zll->z_lock, NULL, MUTEX_DEFAULT, NULL);
1218 list_create(&zll->z_list, sizeof (ztest_znode_t),
1219 offsetof(ztest_znode_t, z_lnode));
1223 ztest_zll_destroy(zll_t *zll)
1225 list_destroy(&zll->z_list);
1226 mutex_destroy(&zll->z_lock);
1229 #define RL_TAG "range_lock"
1230 static ztest_znode_t *
1231 ztest_znode_get(ztest_ds_t *zd, uint64_t object)
1233 zll_t *zll = &zd->zd_range_lock[object & (ZTEST_OBJECT_LOCKS - 1)];
1234 ztest_znode_t *zp = NULL;
1235 mutex_enter(&zll->z_lock);
1236 for (zp = list_head(&zll->z_list); (zp);
1237 zp = list_next(&zll->z_list, zp)) {
1238 if (zp->z_object == object) {
1239 refcount_add(&zp->z_refcnt, RL_TAG);
1244 zp = ztest_znode_init(object);
1245 refcount_add(&zp->z_refcnt, RL_TAG);
1246 list_insert_head(&zll->z_list, zp);
1248 mutex_exit(&zll->z_lock);
1253 ztest_znode_put(ztest_ds_t *zd, ztest_znode_t *zp)
1256 ASSERT3U(zp->z_object, !=, 0);
1257 zll = &zd->zd_range_lock[zp->z_object & (ZTEST_OBJECT_LOCKS - 1)];
1258 mutex_enter(&zll->z_lock);
1259 refcount_remove(&zp->z_refcnt, RL_TAG);
1260 if (refcount_is_zero(&zp->z_refcnt)) {
1261 list_remove(&zll->z_list, zp);
1262 ztest_znode_fini(zp);
1264 mutex_exit(&zll->z_lock);
1269 ztest_rll_init(rll_t *rll)
1271 rll->rll_writer = NULL;
1272 rll->rll_readers = 0;
1273 mutex_init(&rll->rll_lock, NULL, MUTEX_DEFAULT, NULL);
1274 cv_init(&rll->rll_cv, NULL, CV_DEFAULT, NULL);
1278 ztest_rll_destroy(rll_t *rll)
1280 ASSERT(rll->rll_writer == NULL);
1281 ASSERT(rll->rll_readers == 0);
1282 mutex_destroy(&rll->rll_lock);
1283 cv_destroy(&rll->rll_cv);
1287 ztest_rll_lock(rll_t *rll, rl_type_t type)
1289 mutex_enter(&rll->rll_lock);
1291 if (type == RL_READER) {
1292 while (rll->rll_writer != NULL)
1293 (void) cv_wait(&rll->rll_cv, &rll->rll_lock);
1296 while (rll->rll_writer != NULL || rll->rll_readers)
1297 (void) cv_wait(&rll->rll_cv, &rll->rll_lock);
1298 rll->rll_writer = curthread;
1301 mutex_exit(&rll->rll_lock);
1305 ztest_rll_unlock(rll_t *rll)
1307 mutex_enter(&rll->rll_lock);
1309 if (rll->rll_writer) {
1310 ASSERT(rll->rll_readers == 0);
1311 rll->rll_writer = NULL;
1313 ASSERT(rll->rll_readers != 0);
1314 ASSERT(rll->rll_writer == NULL);
1318 if (rll->rll_writer == NULL && rll->rll_readers == 0)
1319 cv_broadcast(&rll->rll_cv);
1321 mutex_exit(&rll->rll_lock);
1325 ztest_object_lock(ztest_ds_t *zd, uint64_t object, rl_type_t type)
1327 rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)];
1329 ztest_rll_lock(rll, type);
1333 ztest_object_unlock(ztest_ds_t *zd, uint64_t object)
1335 rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)];
1337 ztest_rll_unlock(rll);
1340 static ztest_zrl_t *
1341 ztest_zrl_init(rl_t *rl, ztest_znode_t *zp)
1343 ztest_zrl_t *zrl = umem_alloc(sizeof (*zrl), UMEM_NOFAIL);
1345 zrl->z_ztznode = zp;
1350 ztest_zrl_fini(ztest_zrl_t *zrl)
1352 umem_free(zrl, sizeof (*zrl));
1355 static ztest_zrl_t *
1356 ztest_range_lock(ztest_ds_t *zd, uint64_t object, uint64_t offset,
1357 uint64_t size, rl_type_t type)
1359 ztest_znode_t *zp = ztest_znode_get(zd, object);
1360 rl_t *rl = zfs_range_lock(&zp->z_range_lock, offset,
1362 return (ztest_zrl_init(rl, zp));
1366 ztest_range_unlock(ztest_ds_t *zd, ztest_zrl_t *zrl)
1368 zfs_range_unlock(zrl->z_rl);
1369 ztest_znode_put(zd, zrl->z_ztznode);
1370 ztest_zrl_fini(zrl);
1374 ztest_zd_init(ztest_ds_t *zd, ztest_shared_ds_t *szd, objset_t *os)
1377 zd->zd_zilog = dmu_objset_zil(os);
1378 zd->zd_shared = szd;
1379 dmu_objset_name(os, zd->zd_name);
1382 if (zd->zd_shared != NULL)
1383 zd->zd_shared->zd_seq = 0;
1385 VERIFY(rwlock_init(&zd->zd_zilog_lock, USYNC_THREAD, NULL) == 0);
1386 mutex_init(&zd->zd_dirobj_lock, NULL, MUTEX_DEFAULT, NULL);
1388 for (l = 0; l < ZTEST_OBJECT_LOCKS; l++)
1389 ztest_rll_init(&zd->zd_object_lock[l]);
1391 for (l = 0; l < ZTEST_RANGE_LOCKS; l++)
1392 ztest_zll_init(&zd->zd_range_lock[l]);
1396 ztest_zd_fini(ztest_ds_t *zd)
1400 mutex_destroy(&zd->zd_dirobj_lock);
1401 (void) rwlock_destroy(&zd->zd_zilog_lock);
1403 for (l = 0; l < ZTEST_OBJECT_LOCKS; l++)
1404 ztest_rll_destroy(&zd->zd_object_lock[l]);
1406 for (l = 0; l < ZTEST_RANGE_LOCKS; l++)
1407 ztest_zll_destroy(&zd->zd_range_lock[l]);
1410 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1413 ztest_tx_assign(dmu_tx_t *tx, uint64_t txg_how, const char *tag)
1419 * Attempt to assign tx to some transaction group.
1421 error = dmu_tx_assign(tx, txg_how);
1423 if (error == ERESTART) {
1424 ASSERT(txg_how == TXG_NOWAIT);
1427 ASSERT3U(error, ==, ENOSPC);
1428 ztest_record_enospc(tag);
1433 txg = dmu_tx_get_txg(tx);
1439 ztest_pattern_set(void *buf, uint64_t size, uint64_t value)
1442 uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size);
1450 ztest_pattern_match(void *buf, uint64_t size, uint64_t value)
1453 uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size);
1457 diff |= (value - *ip++);
1464 ztest_bt_generate(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
1465 uint64_t dnodesize, uint64_t offset, uint64_t gen, uint64_t txg,
1468 bt->bt_magic = BT_MAGIC;
1469 bt->bt_objset = dmu_objset_id(os);
1470 bt->bt_object = object;
1471 bt->bt_dnodesize = dnodesize;
1472 bt->bt_offset = offset;
1475 bt->bt_crtxg = crtxg;
1479 ztest_bt_verify(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
1480 uint64_t dnodesize, uint64_t offset, uint64_t gen, uint64_t txg,
1483 ASSERT3U(bt->bt_magic, ==, BT_MAGIC);
1484 ASSERT3U(bt->bt_objset, ==, dmu_objset_id(os));
1485 ASSERT3U(bt->bt_object, ==, object);
1486 ASSERT3U(bt->bt_dnodesize, ==, dnodesize);
1487 ASSERT3U(bt->bt_offset, ==, offset);
1488 ASSERT3U(bt->bt_gen, <=, gen);
1489 ASSERT3U(bt->bt_txg, <=, txg);
1490 ASSERT3U(bt->bt_crtxg, ==, crtxg);
1493 static ztest_block_tag_t *
1494 ztest_bt_bonus(dmu_buf_t *db)
1496 dmu_object_info_t doi;
1497 ztest_block_tag_t *bt;
1499 dmu_object_info_from_db(db, &doi);
1500 ASSERT3U(doi.doi_bonus_size, <=, db->db_size);
1501 ASSERT3U(doi.doi_bonus_size, >=, sizeof (*bt));
1502 bt = (void *)((char *)db->db_data + doi.doi_bonus_size - sizeof (*bt));
1508 * Generate a token to fill up unused bonus buffer space. Try to make
1509 * it unique to the object, generation, and offset to verify that data
1510 * is not getting overwritten by data from other dnodes.
1512 #define ZTEST_BONUS_FILL_TOKEN(obj, ds, gen, offset) \
1513 (((ds) << 48) | ((gen) << 32) | ((obj) << 8) | (offset))
1516 * Fill up the unused bonus buffer region before the block tag with a
1517 * verifiable pattern. Filling the whole bonus area with non-zero data
1518 * helps ensure that all dnode traversal code properly skips the
1519 * interior regions of large dnodes.
1522 ztest_fill_unused_bonus(dmu_buf_t *db, void *end, uint64_t obj,
1523 objset_t *os, uint64_t gen)
1527 ASSERT(IS_P2ALIGNED((char *)end - (char *)db->db_data, 8));
1529 for (bonusp = db->db_data; bonusp < (uint64_t *)end; bonusp++) {
1530 uint64_t token = ZTEST_BONUS_FILL_TOKEN(obj, dmu_objset_id(os),
1531 gen, bonusp - (uint64_t *)db->db_data);
1537 * Verify that the unused area of a bonus buffer is filled with the
1541 ztest_verify_unused_bonus(dmu_buf_t *db, void *end, uint64_t obj,
1542 objset_t *os, uint64_t gen)
1546 for (bonusp = db->db_data; bonusp < (uint64_t *)end; bonusp++) {
1547 uint64_t token = ZTEST_BONUS_FILL_TOKEN(obj, dmu_objset_id(os),
1548 gen, bonusp - (uint64_t *)db->db_data);
1549 VERIFY3U(*bonusp, ==, token);
1557 #define lrz_type lr_mode
1558 #define lrz_blocksize lr_uid
1559 #define lrz_ibshift lr_gid
1560 #define lrz_bonustype lr_rdev
1561 #define lrz_dnodesize lr_crtime[1]
1564 ztest_log_create(ztest_ds_t *zd, dmu_tx_t *tx, lr_create_t *lr)
1566 char *name = (void *)(lr + 1); /* name follows lr */
1567 size_t namesize = strlen(name) + 1;
1570 if (zil_replaying(zd->zd_zilog, tx))
1573 itx = zil_itx_create(TX_CREATE, sizeof (*lr) + namesize);
1574 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1575 sizeof (*lr) + namesize - sizeof (lr_t));
1577 zil_itx_assign(zd->zd_zilog, itx, tx);
1581 ztest_log_remove(ztest_ds_t *zd, dmu_tx_t *tx, lr_remove_t *lr, uint64_t object)
1583 char *name = (void *)(lr + 1); /* name follows lr */
1584 size_t namesize = strlen(name) + 1;
1587 if (zil_replaying(zd->zd_zilog, tx))
1590 itx = zil_itx_create(TX_REMOVE, sizeof (*lr) + namesize);
1591 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1592 sizeof (*lr) + namesize - sizeof (lr_t));
1594 itx->itx_oid = object;
1595 zil_itx_assign(zd->zd_zilog, itx, tx);
1599 ztest_log_write(ztest_ds_t *zd, dmu_tx_t *tx, lr_write_t *lr)
1602 itx_wr_state_t write_state = ztest_random(WR_NUM_STATES);
1604 if (zil_replaying(zd->zd_zilog, tx))
1607 if (lr->lr_length > ZIL_MAX_LOG_DATA)
1608 write_state = WR_INDIRECT;
1610 itx = zil_itx_create(TX_WRITE,
1611 sizeof (*lr) + (write_state == WR_COPIED ? lr->lr_length : 0));
1613 if (write_state == WR_COPIED &&
1614 dmu_read(zd->zd_os, lr->lr_foid, lr->lr_offset, lr->lr_length,
1615 ((lr_write_t *)&itx->itx_lr) + 1, DMU_READ_NO_PREFETCH) != 0) {
1616 zil_itx_destroy(itx);
1617 itx = zil_itx_create(TX_WRITE, sizeof (*lr));
1618 write_state = WR_NEED_COPY;
1620 itx->itx_private = zd;
1621 itx->itx_wr_state = write_state;
1622 itx->itx_sync = (ztest_random(8) == 0);
1623 itx->itx_sod += (write_state == WR_NEED_COPY ? lr->lr_length : 0);
1625 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1626 sizeof (*lr) - sizeof (lr_t));
1628 zil_itx_assign(zd->zd_zilog, itx, tx);
1632 ztest_log_truncate(ztest_ds_t *zd, dmu_tx_t *tx, lr_truncate_t *lr)
1636 if (zil_replaying(zd->zd_zilog, tx))
1639 itx = zil_itx_create(TX_TRUNCATE, sizeof (*lr));
1640 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1641 sizeof (*lr) - sizeof (lr_t));
1643 itx->itx_sync = B_FALSE;
1644 zil_itx_assign(zd->zd_zilog, itx, tx);
1648 ztest_log_setattr(ztest_ds_t *zd, dmu_tx_t *tx, lr_setattr_t *lr)
1652 if (zil_replaying(zd->zd_zilog, tx))
1655 itx = zil_itx_create(TX_SETATTR, sizeof (*lr));
1656 bcopy(&lr->lr_common + 1, &itx->itx_lr + 1,
1657 sizeof (*lr) - sizeof (lr_t));
1659 itx->itx_sync = B_FALSE;
1660 zil_itx_assign(zd->zd_zilog, itx, tx);
1667 ztest_replay_create(ztest_ds_t *zd, lr_create_t *lr, boolean_t byteswap)
1669 char *name = (void *)(lr + 1); /* name follows lr */
1670 objset_t *os = zd->zd_os;
1671 ztest_block_tag_t *bbt;
1679 byteswap_uint64_array(lr, sizeof (*lr));
1681 ASSERT(lr->lr_doid == ZTEST_DIROBJ);
1682 ASSERT(name[0] != '\0');
1684 tx = dmu_tx_create(os);
1686 dmu_tx_hold_zap(tx, lr->lr_doid, B_TRUE, name);
1688 if (lr->lrz_type == DMU_OT_ZAP_OTHER) {
1689 dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL);
1691 dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT);
1694 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1698 ASSERT(dmu_objset_zil(os)->zl_replay == !!lr->lr_foid);
1699 bonuslen = DN_BONUS_SIZE(lr->lrz_dnodesize);
1701 if (lr->lrz_type == DMU_OT_ZAP_OTHER) {
1702 if (lr->lr_foid == 0) {
1703 lr->lr_foid = zap_create_dnsize(os,
1704 lr->lrz_type, lr->lrz_bonustype,
1705 bonuslen, lr->lrz_dnodesize, tx);
1707 error = zap_create_claim_dnsize(os, lr->lr_foid,
1708 lr->lrz_type, lr->lrz_bonustype,
1709 bonuslen, lr->lrz_dnodesize, tx);
1712 if (lr->lr_foid == 0) {
1713 lr->lr_foid = dmu_object_alloc_dnsize(os,
1714 lr->lrz_type, 0, lr->lrz_bonustype,
1715 bonuslen, lr->lrz_dnodesize, tx);
1717 error = dmu_object_claim_dnsize(os, lr->lr_foid,
1718 lr->lrz_type, 0, lr->lrz_bonustype,
1719 bonuslen, lr->lrz_dnodesize, tx);
1724 ASSERT3U(error, ==, EEXIST);
1725 ASSERT(zd->zd_zilog->zl_replay);
1730 ASSERT(lr->lr_foid != 0);
1732 if (lr->lrz_type != DMU_OT_ZAP_OTHER)
1733 VERIFY3U(0, ==, dmu_object_set_blocksize(os, lr->lr_foid,
1734 lr->lrz_blocksize, lr->lrz_ibshift, tx));
1736 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1737 bbt = ztest_bt_bonus(db);
1738 dmu_buf_will_dirty(db, tx);
1739 ztest_bt_generate(bbt, os, lr->lr_foid, lr->lrz_dnodesize, -1ULL,
1740 lr->lr_gen, txg, txg);
1741 ztest_fill_unused_bonus(db, bbt, lr->lr_foid, os, lr->lr_gen);
1742 dmu_buf_rele(db, FTAG);
1744 VERIFY3U(0, ==, zap_add(os, lr->lr_doid, name, sizeof (uint64_t), 1,
1747 (void) ztest_log_create(zd, tx, lr);
1755 ztest_replay_remove(ztest_ds_t *zd, lr_remove_t *lr, boolean_t byteswap)
1757 char *name = (void *)(lr + 1); /* name follows lr */
1758 objset_t *os = zd->zd_os;
1759 dmu_object_info_t doi;
1761 uint64_t object, txg;
1764 byteswap_uint64_array(lr, sizeof (*lr));
1766 ASSERT(lr->lr_doid == ZTEST_DIROBJ);
1767 ASSERT(name[0] != '\0');
1770 zap_lookup(os, lr->lr_doid, name, sizeof (object), 1, &object));
1771 ASSERT(object != 0);
1773 ztest_object_lock(zd, object, RL_WRITER);
1775 VERIFY3U(0, ==, dmu_object_info(os, object, &doi));
1777 tx = dmu_tx_create(os);
1779 dmu_tx_hold_zap(tx, lr->lr_doid, B_FALSE, name);
1780 dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END);
1782 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1784 ztest_object_unlock(zd, object);
1788 if (doi.doi_type == DMU_OT_ZAP_OTHER) {
1789 VERIFY3U(0, ==, zap_destroy(os, object, tx));
1791 VERIFY3U(0, ==, dmu_object_free(os, object, tx));
1794 VERIFY3U(0, ==, zap_remove(os, lr->lr_doid, name, tx));
1796 (void) ztest_log_remove(zd, tx, lr, object);
1800 ztest_object_unlock(zd, object);
1806 ztest_replay_write(ztest_ds_t *zd, lr_write_t *lr, boolean_t byteswap)
1808 objset_t *os = zd->zd_os;
1809 void *data = lr + 1; /* data follows lr */
1810 uint64_t offset, length;
1811 ztest_block_tag_t *bt = data;
1812 ztest_block_tag_t *bbt;
1813 uint64_t gen, txg, lrtxg, crtxg;
1814 dmu_object_info_t doi;
1817 arc_buf_t *abuf = NULL;
1821 byteswap_uint64_array(lr, sizeof (*lr));
1823 offset = lr->lr_offset;
1824 length = lr->lr_length;
1826 /* If it's a dmu_sync() block, write the whole block */
1827 if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
1828 uint64_t blocksize = BP_GET_LSIZE(&lr->lr_blkptr);
1829 if (length < blocksize) {
1830 offset -= offset % blocksize;
1835 if (bt->bt_magic == BSWAP_64(BT_MAGIC))
1836 byteswap_uint64_array(bt, sizeof (*bt));
1838 if (bt->bt_magic != BT_MAGIC)
1841 ztest_object_lock(zd, lr->lr_foid, RL_READER);
1842 rl = ztest_range_lock(zd, lr->lr_foid, offset, length, RL_WRITER);
1844 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1846 dmu_object_info_from_db(db, &doi);
1848 bbt = ztest_bt_bonus(db);
1849 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1851 crtxg = bbt->bt_crtxg;
1852 lrtxg = lr->lr_common.lrc_txg;
1854 tx = dmu_tx_create(os);
1856 dmu_tx_hold_write(tx, lr->lr_foid, offset, length);
1858 if (ztest_random(8) == 0 && length == doi.doi_data_block_size &&
1859 P2PHASE(offset, length) == 0)
1860 abuf = dmu_request_arcbuf(db, length);
1862 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1865 dmu_return_arcbuf(abuf);
1866 dmu_buf_rele(db, FTAG);
1867 ztest_range_unlock(zd, rl);
1868 ztest_object_unlock(zd, lr->lr_foid);
1874 * Usually, verify the old data before writing new data --
1875 * but not always, because we also want to verify correct
1876 * behavior when the data was not recently read into cache.
1878 ASSERT(offset % doi.doi_data_block_size == 0);
1879 if (ztest_random(4) != 0) {
1880 int prefetch = ztest_random(2) ?
1881 DMU_READ_PREFETCH : DMU_READ_NO_PREFETCH;
1882 ztest_block_tag_t rbt;
1884 VERIFY(dmu_read(os, lr->lr_foid, offset,
1885 sizeof (rbt), &rbt, prefetch) == 0);
1886 if (rbt.bt_magic == BT_MAGIC) {
1887 ztest_bt_verify(&rbt, os, lr->lr_foid, 0,
1888 offset, gen, txg, crtxg);
1893 * Writes can appear to be newer than the bonus buffer because
1894 * the ztest_get_data() callback does a dmu_read() of the
1895 * open-context data, which may be different than the data
1896 * as it was when the write was generated.
1898 if (zd->zd_zilog->zl_replay) {
1899 ztest_bt_verify(bt, os, lr->lr_foid, 0, offset,
1900 MAX(gen, bt->bt_gen), MAX(txg, lrtxg),
1905 * Set the bt's gen/txg to the bonus buffer's gen/txg
1906 * so that all of the usual ASSERTs will work.
1908 ztest_bt_generate(bt, os, lr->lr_foid, 0, offset, gen, txg,
1913 dmu_write(os, lr->lr_foid, offset, length, data, tx);
1915 bcopy(data, abuf->b_data, length);
1916 dmu_assign_arcbuf(db, offset, abuf, tx);
1919 (void) ztest_log_write(zd, tx, lr);
1921 dmu_buf_rele(db, FTAG);
1925 ztest_range_unlock(zd, rl);
1926 ztest_object_unlock(zd, lr->lr_foid);
1932 ztest_replay_truncate(ztest_ds_t *zd, lr_truncate_t *lr, boolean_t byteswap)
1934 objset_t *os = zd->zd_os;
1940 byteswap_uint64_array(lr, sizeof (*lr));
1942 ztest_object_lock(zd, lr->lr_foid, RL_READER);
1943 rl = ztest_range_lock(zd, lr->lr_foid, lr->lr_offset, lr->lr_length,
1946 tx = dmu_tx_create(os);
1948 dmu_tx_hold_free(tx, lr->lr_foid, lr->lr_offset, lr->lr_length);
1950 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1952 ztest_range_unlock(zd, rl);
1953 ztest_object_unlock(zd, lr->lr_foid);
1957 VERIFY(dmu_free_range(os, lr->lr_foid, lr->lr_offset,
1958 lr->lr_length, tx) == 0);
1960 (void) ztest_log_truncate(zd, tx, lr);
1964 ztest_range_unlock(zd, rl);
1965 ztest_object_unlock(zd, lr->lr_foid);
1971 ztest_replay_setattr(ztest_ds_t *zd, lr_setattr_t *lr, boolean_t byteswap)
1973 objset_t *os = zd->zd_os;
1976 ztest_block_tag_t *bbt;
1977 uint64_t txg, lrtxg, crtxg, dnodesize;
1980 byteswap_uint64_array(lr, sizeof (*lr));
1982 ztest_object_lock(zd, lr->lr_foid, RL_WRITER);
1984 VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
1986 tx = dmu_tx_create(os);
1987 dmu_tx_hold_bonus(tx, lr->lr_foid);
1989 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
1991 dmu_buf_rele(db, FTAG);
1992 ztest_object_unlock(zd, lr->lr_foid);
1996 bbt = ztest_bt_bonus(db);
1997 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
1998 crtxg = bbt->bt_crtxg;
1999 lrtxg = lr->lr_common.lrc_txg;
2000 dnodesize = bbt->bt_dnodesize;
2002 if (zd->zd_zilog->zl_replay) {
2003 ASSERT(lr->lr_size != 0);
2004 ASSERT(lr->lr_mode != 0);
2008 * Randomly change the size and increment the generation.
2010 lr->lr_size = (ztest_random(db->db_size / sizeof (*bbt)) + 1) *
2012 lr->lr_mode = bbt->bt_gen + 1;
2017 * Verify that the current bonus buffer is not newer than our txg.
2019 ztest_bt_verify(bbt, os, lr->lr_foid, dnodesize, -1ULL, lr->lr_mode,
2020 MAX(txg, lrtxg), crtxg);
2022 dmu_buf_will_dirty(db, tx);
2024 ASSERT3U(lr->lr_size, >=, sizeof (*bbt));
2025 ASSERT3U(lr->lr_size, <=, db->db_size);
2026 VERIFY0(dmu_set_bonus(db, lr->lr_size, tx));
2027 bbt = ztest_bt_bonus(db);
2029 ztest_bt_generate(bbt, os, lr->lr_foid, dnodesize, -1ULL, lr->lr_mode,
2031 ztest_fill_unused_bonus(db, bbt, lr->lr_foid, os, bbt->bt_gen);
2032 dmu_buf_rele(db, FTAG);
2034 (void) ztest_log_setattr(zd, tx, lr);
2038 ztest_object_unlock(zd, lr->lr_foid);
2043 zil_replay_func_t ztest_replay_vector[TX_MAX_TYPE] = {
2044 NULL, /* 0 no such transaction type */
2045 (zil_replay_func_t)ztest_replay_create, /* TX_CREATE */
2046 NULL, /* TX_MKDIR */
2047 NULL, /* TX_MKXATTR */
2048 NULL, /* TX_SYMLINK */
2049 (zil_replay_func_t)ztest_replay_remove, /* TX_REMOVE */
2050 NULL, /* TX_RMDIR */
2052 NULL, /* TX_RENAME */
2053 (zil_replay_func_t)ztest_replay_write, /* TX_WRITE */
2054 (zil_replay_func_t)ztest_replay_truncate, /* TX_TRUNCATE */
2055 (zil_replay_func_t)ztest_replay_setattr, /* TX_SETATTR */
2057 NULL, /* TX_CREATE_ACL */
2058 NULL, /* TX_CREATE_ATTR */
2059 NULL, /* TX_CREATE_ACL_ATTR */
2060 NULL, /* TX_MKDIR_ACL */
2061 NULL, /* TX_MKDIR_ATTR */
2062 NULL, /* TX_MKDIR_ACL_ATTR */
2063 NULL, /* TX_WRITE2 */
2067 * ZIL get_data callbacks
2069 typedef struct ztest_zgd_private {
2073 } ztest_zgd_private_t;
2076 ztest_get_done(zgd_t *zgd, int error)
2078 ztest_zgd_private_t *zzp = zgd->zgd_private;
2079 ztest_ds_t *zd = zzp->z_zd;
2080 uint64_t object = zzp->z_object;
2083 dmu_buf_rele(zgd->zgd_db, zgd);
2085 ztest_range_unlock(zd, zzp->z_rl);
2086 ztest_object_unlock(zd, object);
2088 if (error == 0 && zgd->zgd_bp)
2089 zil_add_block(zgd->zgd_zilog, zgd->zgd_bp);
2091 umem_free(zgd, sizeof (*zgd));
2092 umem_free(zzp, sizeof (*zzp));
2096 ztest_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio)
2098 ztest_ds_t *zd = arg;
2099 objset_t *os = zd->zd_os;
2100 uint64_t object = lr->lr_foid;
2101 uint64_t offset = lr->lr_offset;
2102 uint64_t size = lr->lr_length;
2103 blkptr_t *bp = &lr->lr_blkptr;
2104 uint64_t txg = lr->lr_common.lrc_txg;
2106 dmu_object_info_t doi;
2110 ztest_zgd_private_t *zgd_private;
2112 ztest_object_lock(zd, object, RL_READER);
2113 error = dmu_bonus_hold(os, object, FTAG, &db);
2115 ztest_object_unlock(zd, object);
2119 crtxg = ztest_bt_bonus(db)->bt_crtxg;
2121 if (crtxg == 0 || crtxg > txg) {
2122 dmu_buf_rele(db, FTAG);
2123 ztest_object_unlock(zd, object);
2127 dmu_object_info_from_db(db, &doi);
2128 dmu_buf_rele(db, FTAG);
2131 zgd = umem_zalloc(sizeof (*zgd), UMEM_NOFAIL);
2132 zgd->zgd_zilog = zd->zd_zilog;
2133 zgd_private = umem_zalloc(sizeof (ztest_zgd_private_t), UMEM_NOFAIL);
2134 zgd_private->z_zd = zd;
2135 zgd_private->z_object = object;
2136 zgd->zgd_private = zgd_private;
2138 if (buf != NULL) { /* immediate write */
2139 zgd_private->z_rl = ztest_range_lock(zd, object, offset, size,
2142 error = dmu_read(os, object, offset, size, buf,
2143 DMU_READ_NO_PREFETCH);
2146 size = doi.doi_data_block_size;
2148 offset = P2ALIGN(offset, size);
2150 ASSERT(offset < size);
2154 zgd_private->z_rl = ztest_range_lock(zd, object, offset, size,
2157 error = dmu_buf_hold(os, object, offset, zgd, &db,
2158 DMU_READ_NO_PREFETCH);
2161 blkptr_t *obp = dmu_buf_get_blkptr(db);
2163 ASSERT(BP_IS_HOLE(bp));
2170 ASSERT(db->db_offset == offset);
2171 ASSERT(db->db_size == size);
2173 error = dmu_sync(zio, lr->lr_common.lrc_txg,
2174 ztest_get_done, zgd);
2181 ztest_get_done(zgd, error);
2187 ztest_lr_alloc(size_t lrsize, char *name)
2190 size_t namesize = name ? strlen(name) + 1 : 0;
2192 lr = umem_zalloc(lrsize + namesize, UMEM_NOFAIL);
2195 bcopy(name, lr + lrsize, namesize);
2201 ztest_lr_free(void *lr, size_t lrsize, char *name)
2203 size_t namesize = name ? strlen(name) + 1 : 0;
2205 umem_free(lr, lrsize + namesize);
2209 * Lookup a bunch of objects. Returns the number of objects not found.
2212 ztest_lookup(ztest_ds_t *zd, ztest_od_t *od, int count)
2218 ASSERT(mutex_held(&zd->zd_dirobj_lock));
2220 for (i = 0; i < count; i++, od++) {
2222 error = zap_lookup(zd->zd_os, od->od_dir, od->od_name,
2223 sizeof (uint64_t), 1, &od->od_object);
2225 ASSERT(error == ENOENT);
2226 ASSERT(od->od_object == 0);
2230 ztest_block_tag_t *bbt;
2231 dmu_object_info_t doi;
2233 ASSERT(od->od_object != 0);
2234 ASSERT(missing == 0); /* there should be no gaps */
2236 ztest_object_lock(zd, od->od_object, RL_READER);
2237 VERIFY3U(0, ==, dmu_bonus_hold(zd->zd_os,
2238 od->od_object, FTAG, &db));
2239 dmu_object_info_from_db(db, &doi);
2240 bbt = ztest_bt_bonus(db);
2241 ASSERT3U(bbt->bt_magic, ==, BT_MAGIC);
2242 od->od_type = doi.doi_type;
2243 od->od_blocksize = doi.doi_data_block_size;
2244 od->od_gen = bbt->bt_gen;
2245 dmu_buf_rele(db, FTAG);
2246 ztest_object_unlock(zd, od->od_object);
2254 ztest_create(ztest_ds_t *zd, ztest_od_t *od, int count)
2259 ASSERT(mutex_held(&zd->zd_dirobj_lock));
2261 for (i = 0; i < count; i++, od++) {
2268 lr_create_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
2270 lr->lr_doid = od->od_dir;
2271 lr->lr_foid = 0; /* 0 to allocate, > 0 to claim */
2272 lr->lrz_type = od->od_crtype;
2273 lr->lrz_blocksize = od->od_crblocksize;
2274 lr->lrz_ibshift = ztest_random_ibshift();
2275 lr->lrz_bonustype = DMU_OT_UINT64_OTHER;
2276 lr->lrz_dnodesize = od->od_crdnodesize;
2277 lr->lr_gen = od->od_crgen;
2278 lr->lr_crtime[0] = time(NULL);
2280 if (ztest_replay_create(zd, lr, B_FALSE) != 0) {
2281 ASSERT(missing == 0);
2285 od->od_object = lr->lr_foid;
2286 od->od_type = od->od_crtype;
2287 od->od_blocksize = od->od_crblocksize;
2288 od->od_gen = od->od_crgen;
2289 ASSERT(od->od_object != 0);
2292 ztest_lr_free(lr, sizeof (*lr), od->od_name);
2299 ztest_remove(ztest_ds_t *zd, ztest_od_t *od, int count)
2305 ASSERT(mutex_held(&zd->zd_dirobj_lock));
2309 for (i = count - 1; i >= 0; i--, od--) {
2316 * No object was found.
2318 if (od->od_object == 0)
2321 lr_remove_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
2323 lr->lr_doid = od->od_dir;
2325 if ((error = ztest_replay_remove(zd, lr, B_FALSE)) != 0) {
2326 ASSERT3U(error, ==, ENOSPC);
2331 ztest_lr_free(lr, sizeof (*lr), od->od_name);
2338 ztest_write(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size,
2344 lr = ztest_lr_alloc(sizeof (*lr) + size, NULL);
2346 lr->lr_foid = object;
2347 lr->lr_offset = offset;
2348 lr->lr_length = size;
2350 BP_ZERO(&lr->lr_blkptr);
2352 bcopy(data, lr + 1, size);
2354 error = ztest_replay_write(zd, lr, B_FALSE);
2356 ztest_lr_free(lr, sizeof (*lr) + size, NULL);
2362 ztest_truncate(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
2367 lr = ztest_lr_alloc(sizeof (*lr), NULL);
2369 lr->lr_foid = object;
2370 lr->lr_offset = offset;
2371 lr->lr_length = size;
2373 error = ztest_replay_truncate(zd, lr, B_FALSE);
2375 ztest_lr_free(lr, sizeof (*lr), NULL);
2381 ztest_setattr(ztest_ds_t *zd, uint64_t object)
2386 lr = ztest_lr_alloc(sizeof (*lr), NULL);
2388 lr->lr_foid = object;
2392 error = ztest_replay_setattr(zd, lr, B_FALSE);
2394 ztest_lr_free(lr, sizeof (*lr), NULL);
2400 ztest_prealloc(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
2402 objset_t *os = zd->zd_os;
2407 txg_wait_synced(dmu_objset_pool(os), 0);
2409 ztest_object_lock(zd, object, RL_READER);
2410 rl = ztest_range_lock(zd, object, offset, size, RL_WRITER);
2412 tx = dmu_tx_create(os);
2414 dmu_tx_hold_write(tx, object, offset, size);
2416 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
2419 dmu_prealloc(os, object, offset, size, tx);
2421 txg_wait_synced(dmu_objset_pool(os), txg);
2423 (void) dmu_free_long_range(os, object, offset, size);
2426 ztest_range_unlock(zd, rl);
2427 ztest_object_unlock(zd, object);
2431 ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
2434 ztest_block_tag_t wbt;
2435 dmu_object_info_t doi;
2436 enum ztest_io_type io_type;
2440 VERIFY(dmu_object_info(zd->zd_os, object, &doi) == 0);
2441 blocksize = doi.doi_data_block_size;
2442 data = umem_alloc(blocksize, UMEM_NOFAIL);
2445 * Pick an i/o type at random, biased toward writing block tags.
2447 io_type = ztest_random(ZTEST_IO_TYPES);
2448 if (ztest_random(2) == 0)
2449 io_type = ZTEST_IO_WRITE_TAG;
2451 (void) rw_rdlock(&zd->zd_zilog_lock);
2455 case ZTEST_IO_WRITE_TAG:
2456 ztest_bt_generate(&wbt, zd->zd_os, object, doi.doi_dnodesize,
2458 (void) ztest_write(zd, object, offset, sizeof (wbt), &wbt);
2461 case ZTEST_IO_WRITE_PATTERN:
2462 (void) memset(data, 'a' + (object + offset) % 5, blocksize);
2463 if (ztest_random(2) == 0) {
2465 * Induce fletcher2 collisions to ensure that
2466 * zio_ddt_collision() detects and resolves them
2467 * when using fletcher2-verify for deduplication.
2469 ((uint64_t *)data)[0] ^= 1ULL << 63;
2470 ((uint64_t *)data)[4] ^= 1ULL << 63;
2472 (void) ztest_write(zd, object, offset, blocksize, data);
2475 case ZTEST_IO_WRITE_ZEROES:
2476 bzero(data, blocksize);
2477 (void) ztest_write(zd, object, offset, blocksize, data);
2480 case ZTEST_IO_TRUNCATE:
2481 (void) ztest_truncate(zd, object, offset, blocksize);
2484 case ZTEST_IO_SETATTR:
2485 (void) ztest_setattr(zd, object);
2490 case ZTEST_IO_REWRITE:
2491 (void) rw_rdlock(&ztest_name_lock);
2492 err = ztest_dsl_prop_set_uint64(zd->zd_name,
2493 ZFS_PROP_CHECKSUM, spa_dedup_checksum(ztest_spa),
2495 VERIFY(err == 0 || err == ENOSPC);
2496 err = ztest_dsl_prop_set_uint64(zd->zd_name,
2497 ZFS_PROP_COMPRESSION,
2498 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION),
2500 VERIFY(err == 0 || err == ENOSPC);
2501 (void) rw_unlock(&ztest_name_lock);
2503 VERIFY0(dmu_read(zd->zd_os, object, offset, blocksize, data,
2504 DMU_READ_NO_PREFETCH));
2506 (void) ztest_write(zd, object, offset, blocksize, data);
2510 (void) rw_unlock(&zd->zd_zilog_lock);
2512 umem_free(data, blocksize);
2516 * Initialize an object description template.
2519 ztest_od_init(ztest_od_t *od, uint64_t id, char *tag, uint64_t index,
2520 dmu_object_type_t type, uint64_t blocksize, uint64_t dnodesize,
2523 od->od_dir = ZTEST_DIROBJ;
2526 od->od_crtype = type;
2527 od->od_crblocksize = blocksize ? blocksize : ztest_random_blocksize();
2528 od->od_crdnodesize = dnodesize ? dnodesize : ztest_random_dnodesize();
2531 od->od_type = DMU_OT_NONE;
2532 od->od_blocksize = 0;
2535 (void) snprintf(od->od_name, sizeof (od->od_name), "%s(%lld)[%llu]",
2536 tag, (longlong_t)id, (u_longlong_t)index);
2540 * Lookup or create the objects for a test using the od template.
2541 * If the objects do not all exist, or if 'remove' is specified,
2542 * remove any existing objects and create new ones. Otherwise,
2543 * use the existing objects.
2546 ztest_object_init(ztest_ds_t *zd, ztest_od_t *od, size_t size, boolean_t remove)
2548 int count = size / sizeof (*od);
2551 mutex_enter(&zd->zd_dirobj_lock);
2552 if ((ztest_lookup(zd, od, count) != 0 || remove) &&
2553 (ztest_remove(zd, od, count) != 0 ||
2554 ztest_create(zd, od, count) != 0))
2557 mutex_exit(&zd->zd_dirobj_lock);
2564 ztest_zil_commit(ztest_ds_t *zd, uint64_t id)
2566 zilog_t *zilog = zd->zd_zilog;
2568 (void) rw_rdlock(&zd->zd_zilog_lock);
2570 zil_commit(zilog, ztest_random(ZTEST_OBJECTS));
2573 * Remember the committed values in zd, which is in parent/child
2574 * shared memory. If we die, the next iteration of ztest_run()
2575 * will verify that the log really does contain this record.
2577 mutex_enter(&zilog->zl_lock);
2578 ASSERT(zd->zd_shared != NULL);
2579 ASSERT3U(zd->zd_shared->zd_seq, <=, zilog->zl_commit_lr_seq);
2580 zd->zd_shared->zd_seq = zilog->zl_commit_lr_seq;
2581 mutex_exit(&zilog->zl_lock);
2583 (void) rw_unlock(&zd->zd_zilog_lock);
2587 * This function is designed to simulate the operations that occur during a
2588 * mount/unmount operation. We hold the dataset across these operations in an
2589 * attempt to expose any implicit assumptions about ZIL management.
2593 ztest_zil_remount(ztest_ds_t *zd, uint64_t id)
2595 objset_t *os = zd->zd_os;
2598 * We grab the zd_dirobj_lock to ensure that no other thread is
2599 * updating the zil (i.e. adding in-memory log records) and the
2600 * zd_zilog_lock to block any I/O.
2602 mutex_enter(&zd->zd_dirobj_lock);
2603 (void) rw_wrlock(&zd->zd_zilog_lock);
2605 /* zfs_sb_teardown() */
2606 zil_close(zd->zd_zilog);
2608 /* zfsvfs_setup() */
2609 VERIFY(zil_open(os, ztest_get_data) == zd->zd_zilog);
2610 zil_replay(os, zd, ztest_replay_vector);
2612 (void) rw_unlock(&zd->zd_zilog_lock);
2613 mutex_exit(&zd->zd_dirobj_lock);
2617 * Verify that we can't destroy an active pool, create an existing pool,
2618 * or create a pool with a bad vdev spec.
2622 ztest_spa_create_destroy(ztest_ds_t *zd, uint64_t id)
2624 ztest_shared_opts_t *zo = &ztest_opts;
2629 * Attempt to create using a bad file.
2631 nvroot = make_vdev_root("/dev/bogus", NULL, NULL, 0, 0, 0, 0, 0, 1);
2632 VERIFY3U(ENOENT, ==,
2633 spa_create("ztest_bad_file", nvroot, NULL, NULL));
2634 nvlist_free(nvroot);
2637 * Attempt to create using a bad mirror.
2639 nvroot = make_vdev_root("/dev/bogus", NULL, NULL, 0, 0, 0, 0, 2, 1);
2640 VERIFY3U(ENOENT, ==,
2641 spa_create("ztest_bad_mirror", nvroot, NULL, NULL));
2642 nvlist_free(nvroot);
2645 * Attempt to create an existing pool. It shouldn't matter
2646 * what's in the nvroot; we should fail with EEXIST.
2648 (void) rw_rdlock(&ztest_name_lock);
2649 nvroot = make_vdev_root("/dev/bogus", NULL, NULL, 0, 0, 0, 0, 0, 1);
2650 VERIFY3U(EEXIST, ==, spa_create(zo->zo_pool, nvroot, NULL, NULL));
2651 nvlist_free(nvroot);
2652 VERIFY3U(0, ==, spa_open(zo->zo_pool, &spa, FTAG));
2653 VERIFY3U(EBUSY, ==, spa_destroy(zo->zo_pool));
2654 spa_close(spa, FTAG);
2656 (void) rw_unlock(&ztest_name_lock);
2661 ztest_spa_upgrade(ztest_ds_t *zd, uint64_t id)
2664 uint64_t initial_version = SPA_VERSION_INITIAL;
2665 uint64_t version, newversion;
2666 nvlist_t *nvroot, *props;
2669 mutex_enter(&ztest_vdev_lock);
2670 name = kmem_asprintf("%s_upgrade", ztest_opts.zo_pool);
2673 * Clean up from previous runs.
2675 (void) spa_destroy(name);
2677 nvroot = make_vdev_root(NULL, NULL, name, ztest_opts.zo_vdev_size, 0,
2678 0, ztest_opts.zo_raidz, ztest_opts.zo_mirrors, 1);
2681 * If we're configuring a RAIDZ device then make sure that the
2682 * the initial version is capable of supporting that feature.
2684 switch (ztest_opts.zo_raidz_parity) {
2687 initial_version = SPA_VERSION_INITIAL;
2690 initial_version = SPA_VERSION_RAIDZ2;
2693 initial_version = SPA_VERSION_RAIDZ3;
2698 * Create a pool with a spa version that can be upgraded. Pick
2699 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2702 version = ztest_random_spa_version(initial_version);
2703 } while (version > SPA_VERSION_BEFORE_FEATURES);
2705 props = fnvlist_alloc();
2706 fnvlist_add_uint64(props,
2707 zpool_prop_to_name(ZPOOL_PROP_VERSION), version);
2708 VERIFY3S(spa_create(name, nvroot, props, NULL), ==, 0);
2709 fnvlist_free(nvroot);
2710 fnvlist_free(props);
2712 VERIFY3S(spa_open(name, &spa, FTAG), ==, 0);
2713 VERIFY3U(spa_version(spa), ==, version);
2714 newversion = ztest_random_spa_version(version + 1);
2716 if (ztest_opts.zo_verbose >= 4) {
2717 (void) printf("upgrading spa version from %llu to %llu\n",
2718 (u_longlong_t)version, (u_longlong_t)newversion);
2721 spa_upgrade(spa, newversion);
2722 VERIFY3U(spa_version(spa), >, version);
2723 VERIFY3U(spa_version(spa), ==, fnvlist_lookup_uint64(spa->spa_config,
2724 zpool_prop_to_name(ZPOOL_PROP_VERSION)));
2725 spa_close(spa, FTAG);
2728 mutex_exit(&ztest_vdev_lock);
2732 vdev_lookup_by_path(vdev_t *vd, const char *path)
2737 if (vd->vdev_path != NULL && strcmp(path, vd->vdev_path) == 0)
2740 for (c = 0; c < vd->vdev_children; c++)
2741 if ((mvd = vdev_lookup_by_path(vd->vdev_child[c], path)) !=
2749 * Find the first available hole which can be used as a top-level.
2752 find_vdev_hole(spa_t *spa)
2754 vdev_t *rvd = spa->spa_root_vdev;
2757 ASSERT(spa_config_held(spa, SCL_VDEV, RW_READER) == SCL_VDEV);
2759 for (c = 0; c < rvd->vdev_children; c++) {
2760 vdev_t *cvd = rvd->vdev_child[c];
2762 if (cvd->vdev_ishole)
2769 * Verify that vdev_add() works as expected.
2773 ztest_vdev_add_remove(ztest_ds_t *zd, uint64_t id)
2775 ztest_shared_t *zs = ztest_shared;
2776 spa_t *spa = ztest_spa;
2782 mutex_enter(&ztest_vdev_lock);
2783 leaves = MAX(zs->zs_mirrors + zs->zs_splits, 1) * ztest_opts.zo_raidz;
2785 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2787 ztest_shared->zs_vdev_next_leaf = find_vdev_hole(spa) * leaves;
2790 * If we have slogs then remove them 1/4 of the time.
2792 if (spa_has_slogs(spa) && ztest_random(4) == 0) {
2794 * Grab the guid from the head of the log class rotor.
2796 guid = spa_log_class(spa)->mc_rotor->mg_vd->vdev_guid;
2798 spa_config_exit(spa, SCL_VDEV, FTAG);
2801 * We have to grab the zs_name_lock as writer to
2802 * prevent a race between removing a slog (dmu_objset_find)
2803 * and destroying a dataset. Removing the slog will
2804 * grab a reference on the dataset which may cause
2805 * dsl_destroy_head() to fail with EBUSY thus
2806 * leaving the dataset in an inconsistent state.
2808 rw_wrlock(&ztest_name_lock);
2809 error = spa_vdev_remove(spa, guid, B_FALSE);
2810 rw_unlock(&ztest_name_lock);
2812 if (error && error != EEXIST)
2813 fatal(0, "spa_vdev_remove() = %d", error);
2815 spa_config_exit(spa, SCL_VDEV, FTAG);
2818 * Make 1/4 of the devices be log devices.
2820 nvroot = make_vdev_root(NULL, NULL, NULL,
2821 ztest_opts.zo_vdev_size, 0,
2822 ztest_random(4) == 0, ztest_opts.zo_raidz,
2825 error = spa_vdev_add(spa, nvroot);
2826 nvlist_free(nvroot);
2828 if (error == ENOSPC)
2829 ztest_record_enospc("spa_vdev_add");
2830 else if (error != 0)
2831 fatal(0, "spa_vdev_add() = %d", error);
2834 mutex_exit(&ztest_vdev_lock);
2838 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2842 ztest_vdev_aux_add_remove(ztest_ds_t *zd, uint64_t id)
2844 ztest_shared_t *zs = ztest_shared;
2845 spa_t *spa = ztest_spa;
2846 vdev_t *rvd = spa->spa_root_vdev;
2847 spa_aux_vdev_t *sav;
2853 path = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
2855 if (ztest_random(2) == 0) {
2856 sav = &spa->spa_spares;
2857 aux = ZPOOL_CONFIG_SPARES;
2859 sav = &spa->spa_l2cache;
2860 aux = ZPOOL_CONFIG_L2CACHE;
2863 mutex_enter(&ztest_vdev_lock);
2865 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2867 if (sav->sav_count != 0 && ztest_random(4) == 0) {
2869 * Pick a random device to remove.
2871 guid = sav->sav_vdevs[ztest_random(sav->sav_count)]->vdev_guid;
2874 * Find an unused device we can add.
2876 zs->zs_vdev_aux = 0;
2879 (void) snprintf(path, MAXPATHLEN, ztest_aux_template,
2880 ztest_opts.zo_dir, ztest_opts.zo_pool, aux,
2882 for (c = 0; c < sav->sav_count; c++)
2883 if (strcmp(sav->sav_vdevs[c]->vdev_path,
2886 if (c == sav->sav_count &&
2887 vdev_lookup_by_path(rvd, path) == NULL)
2893 spa_config_exit(spa, SCL_VDEV, FTAG);
2899 nvlist_t *nvroot = make_vdev_root(NULL, aux, NULL,
2900 (ztest_opts.zo_vdev_size * 5) / 4, 0, 0, 0, 0, 1);
2901 error = spa_vdev_add(spa, nvroot);
2903 fatal(0, "spa_vdev_add(%p) = %d", nvroot, error);
2904 nvlist_free(nvroot);
2907 * Remove an existing device. Sometimes, dirty its
2908 * vdev state first to make sure we handle removal
2909 * of devices that have pending state changes.
2911 if (ztest_random(2) == 0)
2912 (void) vdev_online(spa, guid, 0, NULL);
2914 error = spa_vdev_remove(spa, guid, B_FALSE);
2915 if (error != 0 && error != EBUSY)
2916 fatal(0, "spa_vdev_remove(%llu) = %d", guid, error);
2919 mutex_exit(&ztest_vdev_lock);
2921 umem_free(path, MAXPATHLEN);
2925 * split a pool if it has mirror tlvdevs
2929 ztest_split_pool(ztest_ds_t *zd, uint64_t id)
2931 ztest_shared_t *zs = ztest_shared;
2932 spa_t *spa = ztest_spa;
2933 vdev_t *rvd = spa->spa_root_vdev;
2934 nvlist_t *tree, **child, *config, *split, **schild;
2935 uint_t c, children, schildren = 0, lastlogid = 0;
2938 mutex_enter(&ztest_vdev_lock);
2940 /* ensure we have a useable config; mirrors of raidz aren't supported */
2941 if (zs->zs_mirrors < 3 || ztest_opts.zo_raidz > 1) {
2942 mutex_exit(&ztest_vdev_lock);
2946 /* clean up the old pool, if any */
2947 (void) spa_destroy("splitp");
2949 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2951 /* generate a config from the existing config */
2952 mutex_enter(&spa->spa_props_lock);
2953 VERIFY(nvlist_lookup_nvlist(spa->spa_config, ZPOOL_CONFIG_VDEV_TREE,
2955 mutex_exit(&spa->spa_props_lock);
2957 VERIFY(nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child,
2960 schild = malloc(rvd->vdev_children * sizeof (nvlist_t *));
2961 for (c = 0; c < children; c++) {
2962 vdev_t *tvd = rvd->vdev_child[c];
2966 if (tvd->vdev_islog || tvd->vdev_ops == &vdev_hole_ops) {
2967 VERIFY(nvlist_alloc(&schild[schildren], NV_UNIQUE_NAME,
2969 VERIFY(nvlist_add_string(schild[schildren],
2970 ZPOOL_CONFIG_TYPE, VDEV_TYPE_HOLE) == 0);
2971 VERIFY(nvlist_add_uint64(schild[schildren],
2972 ZPOOL_CONFIG_IS_HOLE, 1) == 0);
2974 lastlogid = schildren;
2979 VERIFY(nvlist_lookup_nvlist_array(child[c],
2980 ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0);
2981 VERIFY(nvlist_dup(mchild[0], &schild[schildren++], 0) == 0);
2984 /* OK, create a config that can be used to split */
2985 VERIFY(nvlist_alloc(&split, NV_UNIQUE_NAME, 0) == 0);
2986 VERIFY(nvlist_add_string(split, ZPOOL_CONFIG_TYPE,
2987 VDEV_TYPE_ROOT) == 0);
2988 VERIFY(nvlist_add_nvlist_array(split, ZPOOL_CONFIG_CHILDREN, schild,
2989 lastlogid != 0 ? lastlogid : schildren) == 0);
2991 VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, 0) == 0);
2992 VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, split) == 0);
2994 for (c = 0; c < schildren; c++)
2995 nvlist_free(schild[c]);
2999 spa_config_exit(spa, SCL_VDEV, FTAG);
3001 (void) rw_wrlock(&ztest_name_lock);
3002 error = spa_vdev_split_mirror(spa, "splitp", config, NULL, B_FALSE);
3003 (void) rw_unlock(&ztest_name_lock);
3005 nvlist_free(config);
3008 (void) printf("successful split - results:\n");
3009 mutex_enter(&spa_namespace_lock);
3010 show_pool_stats(spa);
3011 show_pool_stats(spa_lookup("splitp"));
3012 mutex_exit(&spa_namespace_lock);
3016 mutex_exit(&ztest_vdev_lock);
3021 * Verify that we can attach and detach devices.
3025 ztest_vdev_attach_detach(ztest_ds_t *zd, uint64_t id)
3027 ztest_shared_t *zs = ztest_shared;
3028 spa_t *spa = ztest_spa;
3029 spa_aux_vdev_t *sav = &spa->spa_spares;
3030 vdev_t *rvd = spa->spa_root_vdev;
3031 vdev_t *oldvd, *newvd, *pvd;
3035 uint64_t ashift = ztest_get_ashift();
3036 uint64_t oldguid, pguid;
3037 uint64_t oldsize, newsize;
3038 char *oldpath, *newpath;
3040 int oldvd_has_siblings = B_FALSE;
3041 int newvd_is_spare = B_FALSE;
3043 int error, expected_error;
3045 oldpath = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
3046 newpath = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
3048 mutex_enter(&ztest_vdev_lock);
3049 leaves = MAX(zs->zs_mirrors, 1) * ztest_opts.zo_raidz;
3051 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
3054 * Decide whether to do an attach or a replace.
3056 replacing = ztest_random(2);
3059 * Pick a random top-level vdev.
3061 top = ztest_random_vdev_top(spa, B_TRUE);
3064 * Pick a random leaf within it.
3066 leaf = ztest_random(leaves);
3071 oldvd = rvd->vdev_child[top];
3072 if (zs->zs_mirrors >= 1) {
3073 ASSERT(oldvd->vdev_ops == &vdev_mirror_ops);
3074 ASSERT(oldvd->vdev_children >= zs->zs_mirrors);
3075 oldvd = oldvd->vdev_child[leaf / ztest_opts.zo_raidz];
3077 if (ztest_opts.zo_raidz > 1) {
3078 ASSERT(oldvd->vdev_ops == &vdev_raidz_ops);
3079 ASSERT(oldvd->vdev_children == ztest_opts.zo_raidz);
3080 oldvd = oldvd->vdev_child[leaf % ztest_opts.zo_raidz];
3084 * If we're already doing an attach or replace, oldvd may be a
3085 * mirror vdev -- in which case, pick a random child.
3087 while (oldvd->vdev_children != 0) {
3088 oldvd_has_siblings = B_TRUE;
3089 ASSERT(oldvd->vdev_children >= 2);
3090 oldvd = oldvd->vdev_child[ztest_random(oldvd->vdev_children)];
3093 oldguid = oldvd->vdev_guid;
3094 oldsize = vdev_get_min_asize(oldvd);
3095 oldvd_is_log = oldvd->vdev_top->vdev_islog;
3096 (void) strcpy(oldpath, oldvd->vdev_path);
3097 pvd = oldvd->vdev_parent;
3098 pguid = pvd->vdev_guid;
3101 * If oldvd has siblings, then half of the time, detach it.
3103 if (oldvd_has_siblings && ztest_random(2) == 0) {
3104 spa_config_exit(spa, SCL_VDEV, FTAG);
3105 error = spa_vdev_detach(spa, oldguid, pguid, B_FALSE);
3106 if (error != 0 && error != ENODEV && error != EBUSY &&
3108 fatal(0, "detach (%s) returned %d", oldpath, error);
3113 * For the new vdev, choose with equal probability between the two
3114 * standard paths (ending in either 'a' or 'b') or a random hot spare.
3116 if (sav->sav_count != 0 && ztest_random(3) == 0) {
3117 newvd = sav->sav_vdevs[ztest_random(sav->sav_count)];
3118 newvd_is_spare = B_TRUE;
3119 (void) strcpy(newpath, newvd->vdev_path);
3121 (void) snprintf(newpath, MAXPATHLEN, ztest_dev_template,
3122 ztest_opts.zo_dir, ztest_opts.zo_pool,
3123 top * leaves + leaf);
3124 if (ztest_random(2) == 0)
3125 newpath[strlen(newpath) - 1] = 'b';
3126 newvd = vdev_lookup_by_path(rvd, newpath);
3130 newsize = vdev_get_min_asize(newvd);
3133 * Make newsize a little bigger or smaller than oldsize.
3134 * If it's smaller, the attach should fail.
3135 * If it's larger, and we're doing a replace,
3136 * we should get dynamic LUN growth when we're done.
3138 newsize = 10 * oldsize / (9 + ztest_random(3));
3142 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
3143 * unless it's a replace; in that case any non-replacing parent is OK.
3145 * If newvd is already part of the pool, it should fail with EBUSY.
3147 * If newvd is too small, it should fail with EOVERFLOW.
3149 if (pvd->vdev_ops != &vdev_mirror_ops &&
3150 pvd->vdev_ops != &vdev_root_ops && (!replacing ||
3151 pvd->vdev_ops == &vdev_replacing_ops ||
3152 pvd->vdev_ops == &vdev_spare_ops))
3153 expected_error = ENOTSUP;
3154 else if (newvd_is_spare && (!replacing || oldvd_is_log))
3155 expected_error = ENOTSUP;
3156 else if (newvd == oldvd)
3157 expected_error = replacing ? 0 : EBUSY;
3158 else if (vdev_lookup_by_path(rvd, newpath) != NULL)
3159 expected_error = EBUSY;
3160 else if (newsize < oldsize)
3161 expected_error = EOVERFLOW;
3162 else if (ashift > oldvd->vdev_top->vdev_ashift)
3163 expected_error = EDOM;
3167 spa_config_exit(spa, SCL_VDEV, FTAG);
3170 * Build the nvlist describing newpath.
3172 root = make_vdev_root(newpath, NULL, NULL, newvd == NULL ? newsize : 0,
3173 ashift, 0, 0, 0, 1);
3175 error = spa_vdev_attach(spa, oldguid, root, replacing);
3180 * If our parent was the replacing vdev, but the replace completed,
3181 * then instead of failing with ENOTSUP we may either succeed,
3182 * fail with ENODEV, or fail with EOVERFLOW.
3184 if (expected_error == ENOTSUP &&
3185 (error == 0 || error == ENODEV || error == EOVERFLOW))
3186 expected_error = error;
3189 * If someone grew the LUN, the replacement may be too small.
3191 if (error == EOVERFLOW || error == EBUSY)
3192 expected_error = error;
3194 /* XXX workaround 6690467 */
3195 if (error != expected_error && expected_error != EBUSY) {
3196 fatal(0, "attach (%s %llu, %s %llu, %d) "
3197 "returned %d, expected %d",
3198 oldpath, oldsize, newpath,
3199 newsize, replacing, error, expected_error);
3202 mutex_exit(&ztest_vdev_lock);
3204 umem_free(oldpath, MAXPATHLEN);
3205 umem_free(newpath, MAXPATHLEN);
3209 * Callback function which expands the physical size of the vdev.
3212 grow_vdev(vdev_t *vd, void *arg)
3214 ASSERTV(spa_t *spa = vd->vdev_spa);
3215 size_t *newsize = arg;
3219 ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
3220 ASSERT(vd->vdev_ops->vdev_op_leaf);
3222 if ((fd = open(vd->vdev_path, O_RDWR)) == -1)
3225 fsize = lseek(fd, 0, SEEK_END);
3226 VERIFY(ftruncate(fd, *newsize) == 0);
3228 if (ztest_opts.zo_verbose >= 6) {
3229 (void) printf("%s grew from %lu to %lu bytes\n",
3230 vd->vdev_path, (ulong_t)fsize, (ulong_t)*newsize);
3237 * Callback function which expands a given vdev by calling vdev_online().
3241 online_vdev(vdev_t *vd, void *arg)
3243 spa_t *spa = vd->vdev_spa;
3244 vdev_t *tvd = vd->vdev_top;
3245 uint64_t guid = vd->vdev_guid;
3246 uint64_t generation = spa->spa_config_generation + 1;
3247 vdev_state_t newstate = VDEV_STATE_UNKNOWN;
3250 ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
3251 ASSERT(vd->vdev_ops->vdev_op_leaf);
3253 /* Calling vdev_online will initialize the new metaslabs */
3254 spa_config_exit(spa, SCL_STATE, spa);
3255 error = vdev_online(spa, guid, ZFS_ONLINE_EXPAND, &newstate);
3256 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
3259 * If vdev_online returned an error or the underlying vdev_open
3260 * failed then we abort the expand. The only way to know that
3261 * vdev_open fails is by checking the returned newstate.
3263 if (error || newstate != VDEV_STATE_HEALTHY) {
3264 if (ztest_opts.zo_verbose >= 5) {
3265 (void) printf("Unable to expand vdev, state %llu, "
3266 "error %d\n", (u_longlong_t)newstate, error);
3270 ASSERT3U(newstate, ==, VDEV_STATE_HEALTHY);
3273 * Since we dropped the lock we need to ensure that we're
3274 * still talking to the original vdev. It's possible this
3275 * vdev may have been detached/replaced while we were
3276 * trying to online it.
3278 if (generation != spa->spa_config_generation) {
3279 if (ztest_opts.zo_verbose >= 5) {
3280 (void) printf("vdev configuration has changed, "
3281 "guid %llu, state %llu, expected gen %llu, "
3284 (u_longlong_t)tvd->vdev_state,
3285 (u_longlong_t)generation,
3286 (u_longlong_t)spa->spa_config_generation);
3294 * Traverse the vdev tree calling the supplied function.
3295 * We continue to walk the tree until we either have walked all
3296 * children or we receive a non-NULL return from the callback.
3297 * If a NULL callback is passed, then we just return back the first
3298 * leaf vdev we encounter.
3301 vdev_walk_tree(vdev_t *vd, vdev_t *(*func)(vdev_t *, void *), void *arg)
3305 if (vd->vdev_ops->vdev_op_leaf) {
3309 return (func(vd, arg));
3312 for (c = 0; c < vd->vdev_children; c++) {
3313 vdev_t *cvd = vd->vdev_child[c];
3314 if ((cvd = vdev_walk_tree(cvd, func, arg)) != NULL)
3321 * Verify that dynamic LUN growth works as expected.
3325 ztest_vdev_LUN_growth(ztest_ds_t *zd, uint64_t id)
3327 spa_t *spa = ztest_spa;
3329 metaslab_class_t *mc;
3330 metaslab_group_t *mg;
3331 size_t psize, newsize;
3333 uint64_t old_class_space, new_class_space, old_ms_count, new_ms_count;
3335 mutex_enter(&ztest_vdev_lock);
3336 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
3338 top = ztest_random_vdev_top(spa, B_TRUE);
3340 tvd = spa->spa_root_vdev->vdev_child[top];
3343 old_ms_count = tvd->vdev_ms_count;
3344 old_class_space = metaslab_class_get_space(mc);
3347 * Determine the size of the first leaf vdev associated with
3348 * our top-level device.
3350 vd = vdev_walk_tree(tvd, NULL, NULL);
3351 ASSERT3P(vd, !=, NULL);
3352 ASSERT(vd->vdev_ops->vdev_op_leaf);
3354 psize = vd->vdev_psize;
3357 * We only try to expand the vdev if it's healthy, less than 4x its
3358 * original size, and it has a valid psize.
3360 if (tvd->vdev_state != VDEV_STATE_HEALTHY ||
3361 psize == 0 || psize >= 4 * ztest_opts.zo_vdev_size) {
3362 spa_config_exit(spa, SCL_STATE, spa);
3363 mutex_exit(&ztest_vdev_lock);
3367 newsize = psize + psize / 8;
3368 ASSERT3U(newsize, >, psize);
3370 if (ztest_opts.zo_verbose >= 6) {
3371 (void) printf("Expanding LUN %s from %lu to %lu\n",
3372 vd->vdev_path, (ulong_t)psize, (ulong_t)newsize);
3376 * Growing the vdev is a two step process:
3377 * 1). expand the physical size (i.e. relabel)
3378 * 2). online the vdev to create the new metaslabs
3380 if (vdev_walk_tree(tvd, grow_vdev, &newsize) != NULL ||
3381 vdev_walk_tree(tvd, online_vdev, NULL) != NULL ||
3382 tvd->vdev_state != VDEV_STATE_HEALTHY) {
3383 if (ztest_opts.zo_verbose >= 5) {
3384 (void) printf("Could not expand LUN because "
3385 "the vdev configuration changed.\n");
3387 spa_config_exit(spa, SCL_STATE, spa);
3388 mutex_exit(&ztest_vdev_lock);
3392 spa_config_exit(spa, SCL_STATE, spa);
3395 * Expanding the LUN will update the config asynchronously,
3396 * thus we must wait for the async thread to complete any
3397 * pending tasks before proceeding.
3401 mutex_enter(&spa->spa_async_lock);
3402 done = (spa->spa_async_thread == NULL && !spa->spa_async_tasks);
3403 mutex_exit(&spa->spa_async_lock);
3406 txg_wait_synced(spa_get_dsl(spa), 0);
3407 (void) poll(NULL, 0, 100);
3410 spa_config_enter(spa, SCL_STATE, spa, RW_READER);
3412 tvd = spa->spa_root_vdev->vdev_child[top];
3413 new_ms_count = tvd->vdev_ms_count;
3414 new_class_space = metaslab_class_get_space(mc);
3416 if (tvd->vdev_mg != mg || mg->mg_class != mc) {
3417 if (ztest_opts.zo_verbose >= 5) {
3418 (void) printf("Could not verify LUN expansion due to "
3419 "intervening vdev offline or remove.\n");
3421 spa_config_exit(spa, SCL_STATE, spa);
3422 mutex_exit(&ztest_vdev_lock);
3427 * Make sure we were able to grow the vdev.
3429 if (new_ms_count <= old_ms_count)
3430 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3431 old_ms_count, new_ms_count);
3434 * Make sure we were able to grow the pool.
3436 if (new_class_space <= old_class_space)
3437 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3438 old_class_space, new_class_space);
3440 if (ztest_opts.zo_verbose >= 5) {
3441 char oldnumbuf[6], newnumbuf[6];
3443 nicenum(old_class_space, oldnumbuf);
3444 nicenum(new_class_space, newnumbuf);
3445 (void) printf("%s grew from %s to %s\n",
3446 spa->spa_name, oldnumbuf, newnumbuf);
3449 spa_config_exit(spa, SCL_STATE, spa);
3450 mutex_exit(&ztest_vdev_lock);
3454 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3458 ztest_objset_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
3461 * Create the objects common to all ztest datasets.
3463 VERIFY(zap_create_claim(os, ZTEST_DIROBJ,
3464 DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0);
3468 ztest_dataset_create(char *dsname)
3470 uint64_t zilset = ztest_random(100);
3471 int err = dmu_objset_create(dsname, DMU_OST_OTHER, 0,
3472 ztest_objset_create_cb, NULL);
3474 if (err || zilset < 80)
3477 if (ztest_opts.zo_verbose >= 5)
3478 (void) printf("Setting dataset %s to sync always\n", dsname);
3479 return (ztest_dsl_prop_set_uint64(dsname, ZFS_PROP_SYNC,
3480 ZFS_SYNC_ALWAYS, B_FALSE));
3485 ztest_objset_destroy_cb(const char *name, void *arg)
3488 dmu_object_info_t doi;
3492 * Verify that the dataset contains a directory object.
3494 VERIFY0(dmu_objset_own(name, DMU_OST_OTHER, B_TRUE, FTAG, &os));
3495 error = dmu_object_info(os, ZTEST_DIROBJ, &doi);
3496 if (error != ENOENT) {
3497 /* We could have crashed in the middle of destroying it */
3499 ASSERT3U(doi.doi_type, ==, DMU_OT_ZAP_OTHER);
3500 ASSERT3S(doi.doi_physical_blocks_512, >=, 0);
3502 dmu_objset_disown(os, FTAG);
3505 * Destroy the dataset.
3507 if (strchr(name, '@') != NULL) {
3508 VERIFY0(dsl_destroy_snapshot(name, B_TRUE));
3510 error = dsl_destroy_head(name);
3511 /* There could be a hold on this dataset */
3519 ztest_snapshot_create(char *osname, uint64_t id)
3521 char snapname[ZFS_MAX_DATASET_NAME_LEN];
3524 (void) snprintf(snapname, sizeof (snapname), "%llu", (u_longlong_t)id);
3526 error = dmu_objset_snapshot_one(osname, snapname);
3527 if (error == ENOSPC) {
3528 ztest_record_enospc(FTAG);
3531 if (error != 0 && error != EEXIST) {
3532 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname,
3539 ztest_snapshot_destroy(char *osname, uint64_t id)
3541 char snapname[ZFS_MAX_DATASET_NAME_LEN];
3544 (void) snprintf(snapname, sizeof (snapname), "%s@%llu", osname,
3547 error = dsl_destroy_snapshot(snapname, B_FALSE);
3548 if (error != 0 && error != ENOENT)
3549 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname, error);
3555 ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
3561 char name[ZFS_MAX_DATASET_NAME_LEN];
3565 zdtmp = umem_alloc(sizeof (ztest_ds_t), UMEM_NOFAIL);
3567 (void) rw_rdlock(&ztest_name_lock);
3569 (void) snprintf(name, sizeof (name), "%s/temp_%llu",
3570 ztest_opts.zo_pool, (u_longlong_t)id);
3573 * If this dataset exists from a previous run, process its replay log
3574 * half of the time. If we don't replay it, then dsl_destroy_head()
3575 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3577 if (ztest_random(2) == 0 &&
3578 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os) == 0) {
3579 ztest_zd_init(zdtmp, NULL, os);
3580 zil_replay(os, zdtmp, ztest_replay_vector);
3581 ztest_zd_fini(zdtmp);
3582 dmu_objset_disown(os, FTAG);
3586 * There may be an old instance of the dataset we're about to
3587 * create lying around from a previous run. If so, destroy it
3588 * and all of its snapshots.
3590 (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
3591 DS_FIND_CHILDREN | DS_FIND_SNAPSHOTS);
3594 * Verify that the destroyed dataset is no longer in the namespace.
3596 VERIFY3U(ENOENT, ==, dmu_objset_own(name, DMU_OST_OTHER, B_TRUE,
3600 * Verify that we can create a new dataset.
3602 error = ztest_dataset_create(name);
3604 if (error == ENOSPC) {
3605 ztest_record_enospc(FTAG);
3608 fatal(0, "dmu_objset_create(%s) = %d", name, error);
3611 VERIFY0(dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os));
3613 ztest_zd_init(zdtmp, NULL, os);
3616 * Open the intent log for it.
3618 zilog = zil_open(os, ztest_get_data);
3621 * Put some objects in there, do a little I/O to them,
3622 * and randomly take a couple of snapshots along the way.
3624 iters = ztest_random(5);
3625 for (i = 0; i < iters; i++) {
3626 ztest_dmu_object_alloc_free(zdtmp, id);
3627 if (ztest_random(iters) == 0)
3628 (void) ztest_snapshot_create(name, i);
3632 * Verify that we cannot create an existing dataset.
3634 VERIFY3U(EEXIST, ==,
3635 dmu_objset_create(name, DMU_OST_OTHER, 0, NULL, NULL));
3638 * Verify that we can hold an objset that is also owned.
3640 VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os2));
3641 dmu_objset_rele(os2, FTAG);
3644 * Verify that we cannot own an objset that is already owned.
3647 dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os2));
3650 dmu_objset_disown(os, FTAG);
3651 ztest_zd_fini(zdtmp);
3653 (void) rw_unlock(&ztest_name_lock);
3655 umem_free(zdtmp, sizeof (ztest_ds_t));
3659 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3662 ztest_dmu_snapshot_create_destroy(ztest_ds_t *zd, uint64_t id)
3664 (void) rw_rdlock(&ztest_name_lock);
3665 (void) ztest_snapshot_destroy(zd->zd_name, id);
3666 (void) ztest_snapshot_create(zd->zd_name, id);
3667 (void) rw_unlock(&ztest_name_lock);
3671 * Cleanup non-standard snapshots and clones.
3674 ztest_dsl_dataset_cleanup(char *osname, uint64_t id)
3683 snap1name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3684 clone1name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3685 snap2name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3686 clone2name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3687 snap3name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3689 (void) snprintf(snap1name, ZFS_MAX_DATASET_NAME_LEN,
3690 "%s@s1_%llu", osname, (u_longlong_t)id);
3691 (void) snprintf(clone1name, ZFS_MAX_DATASET_NAME_LEN,
3692 "%s/c1_%llu", osname, (u_longlong_t)id);
3693 (void) snprintf(snap2name, ZFS_MAX_DATASET_NAME_LEN,
3694 "%s@s2_%llu", clone1name, (u_longlong_t)id);
3695 (void) snprintf(clone2name, ZFS_MAX_DATASET_NAME_LEN,
3696 "%s/c2_%llu", osname, (u_longlong_t)id);
3697 (void) snprintf(snap3name, ZFS_MAX_DATASET_NAME_LEN,
3698 "%s@s3_%llu", clone1name, (u_longlong_t)id);
3700 error = dsl_destroy_head(clone2name);
3701 if (error && error != ENOENT)
3702 fatal(0, "dsl_destroy_head(%s) = %d", clone2name, error);
3703 error = dsl_destroy_snapshot(snap3name, B_FALSE);
3704 if (error && error != ENOENT)
3705 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name, error);
3706 error = dsl_destroy_snapshot(snap2name, B_FALSE);
3707 if (error && error != ENOENT)
3708 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name, error);
3709 error = dsl_destroy_head(clone1name);
3710 if (error && error != ENOENT)
3711 fatal(0, "dsl_destroy_head(%s) = %d", clone1name, error);
3712 error = dsl_destroy_snapshot(snap1name, B_FALSE);
3713 if (error && error != ENOENT)
3714 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name, error);
3716 umem_free(snap1name, ZFS_MAX_DATASET_NAME_LEN);
3717 umem_free(clone1name, ZFS_MAX_DATASET_NAME_LEN);
3718 umem_free(snap2name, ZFS_MAX_DATASET_NAME_LEN);
3719 umem_free(clone2name, ZFS_MAX_DATASET_NAME_LEN);
3720 umem_free(snap3name, ZFS_MAX_DATASET_NAME_LEN);
3724 * Verify dsl_dataset_promote handles EBUSY
3727 ztest_dsl_dataset_promote_busy(ztest_ds_t *zd, uint64_t id)
3735 char *osname = zd->zd_name;
3738 snap1name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3739 clone1name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3740 snap2name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3741 clone2name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3742 snap3name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
3744 (void) rw_rdlock(&ztest_name_lock);
3746 ztest_dsl_dataset_cleanup(osname, id);
3748 (void) snprintf(snap1name, ZFS_MAX_DATASET_NAME_LEN,
3749 "%s@s1_%llu", osname, (u_longlong_t)id);
3750 (void) snprintf(clone1name, ZFS_MAX_DATASET_NAME_LEN,
3751 "%s/c1_%llu", osname, (u_longlong_t)id);
3752 (void) snprintf(snap2name, ZFS_MAX_DATASET_NAME_LEN,
3753 "%s@s2_%llu", clone1name, (u_longlong_t)id);
3754 (void) snprintf(clone2name, ZFS_MAX_DATASET_NAME_LEN,
3755 "%s/c2_%llu", osname, (u_longlong_t)id);
3756 (void) snprintf(snap3name, ZFS_MAX_DATASET_NAME_LEN,
3757 "%s@s3_%llu", clone1name, (u_longlong_t)id);
3759 error = dmu_objset_snapshot_one(osname, strchr(snap1name, '@') + 1);
3760 if (error && error != EEXIST) {
3761 if (error == ENOSPC) {
3762 ztest_record_enospc(FTAG);
3765 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name, error);
3768 error = dmu_objset_clone(clone1name, snap1name);
3770 if (error == ENOSPC) {
3771 ztest_record_enospc(FTAG);
3774 fatal(0, "dmu_objset_create(%s) = %d", clone1name, error);
3777 error = dmu_objset_snapshot_one(clone1name, strchr(snap2name, '@') + 1);
3778 if (error && error != EEXIST) {
3779 if (error == ENOSPC) {
3780 ztest_record_enospc(FTAG);
3783 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name, error);
3786 error = dmu_objset_snapshot_one(clone1name, strchr(snap3name, '@') + 1);
3787 if (error && error != EEXIST) {
3788 if (error == ENOSPC) {
3789 ztest_record_enospc(FTAG);
3792 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error);
3795 error = dmu_objset_clone(clone2name, snap3name);
3797 if (error == ENOSPC) {
3798 ztest_record_enospc(FTAG);
3801 fatal(0, "dmu_objset_create(%s) = %d", clone2name, error);
3804 error = dmu_objset_own(snap2name, DMU_OST_ANY, B_TRUE, FTAG, &os);
3806 fatal(0, "dmu_objset_own(%s) = %d", snap2name, error);
3807 error = dsl_dataset_promote(clone2name, NULL);
3808 if (error == ENOSPC) {
3809 dmu_objset_disown(os, FTAG);
3810 ztest_record_enospc(FTAG);
3814 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name,
3816 dmu_objset_disown(os, FTAG);
3819 ztest_dsl_dataset_cleanup(osname, id);
3821 (void) rw_unlock(&ztest_name_lock);
3823 umem_free(snap1name, ZFS_MAX_DATASET_NAME_LEN);
3824 umem_free(clone1name, ZFS_MAX_DATASET_NAME_LEN);
3825 umem_free(snap2name, ZFS_MAX_DATASET_NAME_LEN);
3826 umem_free(clone2name, ZFS_MAX_DATASET_NAME_LEN);
3827 umem_free(snap3name, ZFS_MAX_DATASET_NAME_LEN);
3830 #undef OD_ARRAY_SIZE
3831 #define OD_ARRAY_SIZE 4
3834 * Verify that dmu_object_{alloc,free} work as expected.
3837 ztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t id)
3844 size = sizeof (ztest_od_t) * OD_ARRAY_SIZE;
3845 od = umem_alloc(size, UMEM_NOFAIL);
3846 batchsize = OD_ARRAY_SIZE;
3848 for (b = 0; b < batchsize; b++)
3849 ztest_od_init(od + b, id, FTAG, b, DMU_OT_UINT64_OTHER,
3853 * Destroy the previous batch of objects, create a new batch,
3854 * and do some I/O on the new objects.
3856 if (ztest_object_init(zd, od, size, B_TRUE) != 0)
3859 while (ztest_random(4 * batchsize) != 0)
3860 ztest_io(zd, od[ztest_random(batchsize)].od_object,
3861 ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
3863 umem_free(od, size);
3866 #undef OD_ARRAY_SIZE
3867 #define OD_ARRAY_SIZE 2
3870 * Verify that dmu_{read,write} work as expected.
3873 ztest_dmu_read_write(ztest_ds_t *zd, uint64_t id)
3878 objset_t *os = zd->zd_os;
3879 size = sizeof (ztest_od_t) * OD_ARRAY_SIZE;
3880 od = umem_alloc(size, UMEM_NOFAIL);
3882 int i, freeit, error;
3884 bufwad_t *packbuf, *bigbuf, *pack, *bigH, *bigT;
3885 uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
3886 uint64_t chunksize = (1000 + ztest_random(1000)) * sizeof (uint64_t);
3887 uint64_t regions = 997;
3888 uint64_t stride = 123456789ULL;
3889 uint64_t width = 40;
3890 int free_percent = 5;
3893 * This test uses two objects, packobj and bigobj, that are always
3894 * updated together (i.e. in the same tx) so that their contents are
3895 * in sync and can be compared. Their contents relate to each other
3896 * in a simple way: packobj is a dense array of 'bufwad' structures,
3897 * while bigobj is a sparse array of the same bufwads. Specifically,
3898 * for any index n, there are three bufwads that should be identical:
3900 * packobj, at offset n * sizeof (bufwad_t)
3901 * bigobj, at the head of the nth chunk
3902 * bigobj, at the tail of the nth chunk
3904 * The chunk size is arbitrary. It doesn't have to be a power of two,
3905 * and it doesn't have any relation to the object blocksize.
3906 * The only requirement is that it can hold at least two bufwads.
3908 * Normally, we write the bufwad to each of these locations.
3909 * However, free_percent of the time we instead write zeroes to
3910 * packobj and perform a dmu_free_range() on bigobj. By comparing
3911 * bigobj to packobj, we can verify that the DMU is correctly
3912 * tracking which parts of an object are allocated and free,
3913 * and that the contents of the allocated blocks are correct.
3917 * Read the directory info. If it's the first time, set things up.
3919 ztest_od_init(od, id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0, chunksize);
3920 ztest_od_init(od + 1, id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, 0,
3923 if (ztest_object_init(zd, od, size, B_FALSE) != 0) {
3924 umem_free(od, size);
3928 bigobj = od[0].od_object;
3929 packobj = od[1].od_object;
3930 chunksize = od[0].od_gen;
3931 ASSERT(chunksize == od[1].od_gen);
3934 * Prefetch a random chunk of the big object.
3935 * Our aim here is to get some async reads in flight
3936 * for blocks that we may free below; the DMU should
3937 * handle this race correctly.
3939 n = ztest_random(regions) * stride + ztest_random(width);
3940 s = 1 + ztest_random(2 * width - 1);
3941 dmu_prefetch(os, bigobj, 0, n * chunksize, s * chunksize,
3942 ZIO_PRIORITY_SYNC_READ);
3945 * Pick a random index and compute the offsets into packobj and bigobj.
3947 n = ztest_random(regions) * stride + ztest_random(width);
3948 s = 1 + ztest_random(width - 1);
3950 packoff = n * sizeof (bufwad_t);
3951 packsize = s * sizeof (bufwad_t);
3953 bigoff = n * chunksize;
3954 bigsize = s * chunksize;
3956 packbuf = umem_alloc(packsize, UMEM_NOFAIL);
3957 bigbuf = umem_alloc(bigsize, UMEM_NOFAIL);
3960 * free_percent of the time, free a range of bigobj rather than
3963 freeit = (ztest_random(100) < free_percent);
3966 * Read the current contents of our objects.
3968 error = dmu_read(os, packobj, packoff, packsize, packbuf,
3971 error = dmu_read(os, bigobj, bigoff, bigsize, bigbuf,
3976 * Get a tx for the mods to both packobj and bigobj.
3978 tx = dmu_tx_create(os);
3980 dmu_tx_hold_write(tx, packobj, packoff, packsize);
3983 dmu_tx_hold_free(tx, bigobj, bigoff, bigsize);
3985 dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
3987 /* This accounts for setting the checksum/compression. */
3988 dmu_tx_hold_bonus(tx, bigobj);
3990 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
3992 umem_free(packbuf, packsize);
3993 umem_free(bigbuf, bigsize);
3994 umem_free(od, size);
3998 enum zio_checksum cksum;
4000 cksum = (enum zio_checksum)
4001 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM);
4002 } while (cksum >= ZIO_CHECKSUM_LEGACY_FUNCTIONS);
4003 dmu_object_set_checksum(os, bigobj, cksum, tx);
4005 enum zio_compress comp;
4007 comp = (enum zio_compress)
4008 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION);
4009 } while (comp >= ZIO_COMPRESS_LEGACY_FUNCTIONS);
4010 dmu_object_set_compress(os, bigobj, comp, tx);
4013 * For each index from n to n + s, verify that the existing bufwad
4014 * in packobj matches the bufwads at the head and tail of the
4015 * corresponding chunk in bigobj. Then update all three bufwads
4016 * with the new values we want to write out.
4018 for (i = 0; i < s; i++) {
4020 pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
4022 bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
4024 bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
4026 ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
4027 ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
4029 if (pack->bw_txg > txg)
4030 fatal(0, "future leak: got %llx, open txg is %llx",
4033 if (pack->bw_data != 0 && pack->bw_index != n + i)
4034 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4035 pack->bw_index, n, i);
4037 if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0)
4038 fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH);
4040 if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0)
4041 fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT);
4044 bzero(pack, sizeof (bufwad_t));
4046 pack->bw_index = n + i;
4048 pack->bw_data = 1 + ztest_random(-2ULL);
4055 * We've verified all the old bufwads, and made new ones.
4056 * Now write them out.
4058 dmu_write(os, packobj, packoff, packsize, packbuf, tx);
4061 if (ztest_opts.zo_verbose >= 7) {
4062 (void) printf("freeing offset %llx size %llx"
4064 (u_longlong_t)bigoff,
4065 (u_longlong_t)bigsize,
4068 VERIFY(0 == dmu_free_range(os, bigobj, bigoff, bigsize, tx));
4070 if (ztest_opts.zo_verbose >= 7) {
4071 (void) printf("writing offset %llx size %llx"
4073 (u_longlong_t)bigoff,
4074 (u_longlong_t)bigsize,
4077 dmu_write(os, bigobj, bigoff, bigsize, bigbuf, tx);
4083 * Sanity check the stuff we just wrote.
4086 void *packcheck = umem_alloc(packsize, UMEM_NOFAIL);
4087 void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL);
4089 VERIFY(0 == dmu_read(os, packobj, packoff,
4090 packsize, packcheck, DMU_READ_PREFETCH));
4091 VERIFY(0 == dmu_read(os, bigobj, bigoff,
4092 bigsize, bigcheck, DMU_READ_PREFETCH));
4094 ASSERT(bcmp(packbuf, packcheck, packsize) == 0);
4095 ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0);
4097 umem_free(packcheck, packsize);
4098 umem_free(bigcheck, bigsize);
4101 umem_free(packbuf, packsize);
4102 umem_free(bigbuf, bigsize);
4103 umem_free(od, size);
4107 compare_and_update_pbbufs(uint64_t s, bufwad_t *packbuf, bufwad_t *bigbuf,
4108 uint64_t bigsize, uint64_t n, uint64_t chunksize, uint64_t txg)
4116 * For each index from n to n + s, verify that the existing bufwad
4117 * in packobj matches the bufwads at the head and tail of the
4118 * corresponding chunk in bigobj. Then update all three bufwads
4119 * with the new values we want to write out.
4121 for (i = 0; i < s; i++) {
4123 pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
4125 bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
4127 bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
4129 ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
4130 ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
4132 if (pack->bw_txg > txg)
4133 fatal(0, "future leak: got %llx, open txg is %llx",
4136 if (pack->bw_data != 0 && pack->bw_index != n + i)
4137 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4138 pack->bw_index, n, i);
4140 if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0)
4141 fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH);
4143 if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0)
4144 fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT);
4146 pack->bw_index = n + i;
4148 pack->bw_data = 1 + ztest_random(-2ULL);
4155 #undef OD_ARRAY_SIZE
4156 #define OD_ARRAY_SIZE 2
4159 ztest_dmu_read_write_zcopy(ztest_ds_t *zd, uint64_t id)
4161 objset_t *os = zd->zd_os;
4168 bufwad_t *packbuf, *bigbuf;
4169 uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
4170 uint64_t blocksize = ztest_random_blocksize();
4171 uint64_t chunksize = blocksize;
4172 uint64_t regions = 997;
4173 uint64_t stride = 123456789ULL;
4175 dmu_buf_t *bonus_db;
4176 arc_buf_t **bigbuf_arcbufs;
4177 dmu_object_info_t doi;
4179 size = sizeof (ztest_od_t) * OD_ARRAY_SIZE;
4180 od = umem_alloc(size, UMEM_NOFAIL);
4183 * This test uses two objects, packobj and bigobj, that are always
4184 * updated together (i.e. in the same tx) so that their contents are
4185 * in sync and can be compared. Their contents relate to each other
4186 * in a simple way: packobj is a dense array of 'bufwad' structures,
4187 * while bigobj is a sparse array of the same bufwads. Specifically,
4188 * for any index n, there are three bufwads that should be identical:
4190 * packobj, at offset n * sizeof (bufwad_t)
4191 * bigobj, at the head of the nth chunk
4192 * bigobj, at the tail of the nth chunk
4194 * The chunk size is set equal to bigobj block size so that
4195 * dmu_assign_arcbuf() can be tested for object updates.
4199 * Read the directory info. If it's the first time, set things up.
4201 ztest_od_init(od, id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0, 0);
4202 ztest_od_init(od + 1, id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, 0,
4206 if (ztest_object_init(zd, od, size, B_FALSE) != 0) {
4207 umem_free(od, size);
4211 bigobj = od[0].od_object;
4212 packobj = od[1].od_object;
4213 blocksize = od[0].od_blocksize;
4214 chunksize = blocksize;
4215 ASSERT(chunksize == od[1].od_gen);
4217 VERIFY(dmu_object_info(os, bigobj, &doi) == 0);
4218 VERIFY(ISP2(doi.doi_data_block_size));
4219 VERIFY(chunksize == doi.doi_data_block_size);
4220 VERIFY(chunksize >= 2 * sizeof (bufwad_t));
4223 * Pick a random index and compute the offsets into packobj and bigobj.
4225 n = ztest_random(regions) * stride + ztest_random(width);
4226 s = 1 + ztest_random(width - 1);
4228 packoff = n * sizeof (bufwad_t);
4229 packsize = s * sizeof (bufwad_t);
4231 bigoff = n * chunksize;
4232 bigsize = s * chunksize;
4234 packbuf = umem_zalloc(packsize, UMEM_NOFAIL);
4235 bigbuf = umem_zalloc(bigsize, UMEM_NOFAIL);
4237 VERIFY3U(0, ==, dmu_bonus_hold(os, bigobj, FTAG, &bonus_db));
4239 bigbuf_arcbufs = umem_zalloc(2 * s * sizeof (arc_buf_t *), UMEM_NOFAIL);
4242 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
4243 * Iteration 1 test zcopy to already referenced dbufs.
4244 * Iteration 2 test zcopy to dirty dbuf in the same txg.
4245 * Iteration 3 test zcopy to dbuf dirty in previous txg.
4246 * Iteration 4 test zcopy when dbuf is no longer dirty.
4247 * Iteration 5 test zcopy when it can't be done.
4248 * Iteration 6 one more zcopy write.
4250 for (i = 0; i < 7; i++) {
4255 * In iteration 5 (i == 5) use arcbufs
4256 * that don't match bigobj blksz to test
4257 * dmu_assign_arcbuf() when it can't directly
4258 * assign an arcbuf to a dbuf.
4260 for (j = 0; j < s; j++) {
4261 if (i != 5 || chunksize < (SPA_MINBLOCKSIZE * 2)) {
4263 dmu_request_arcbuf(bonus_db, chunksize);
4265 bigbuf_arcbufs[2 * j] =
4266 dmu_request_arcbuf(bonus_db, chunksize / 2);
4267 bigbuf_arcbufs[2 * j + 1] =
4268 dmu_request_arcbuf(bonus_db, chunksize / 2);
4273 * Get a tx for the mods to both packobj and bigobj.
4275 tx = dmu_tx_create(os);
4277 dmu_tx_hold_write(tx, packobj, packoff, packsize);
4278 dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
4280 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4282 umem_free(packbuf, packsize);
4283 umem_free(bigbuf, bigsize);
4284 for (j = 0; j < s; j++) {
4286 chunksize < (SPA_MINBLOCKSIZE * 2)) {
4287 dmu_return_arcbuf(bigbuf_arcbufs[j]);
4290 bigbuf_arcbufs[2 * j]);
4292 bigbuf_arcbufs[2 * j + 1]);
4295 umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
4296 umem_free(od, size);
4297 dmu_buf_rele(bonus_db, FTAG);
4302 * 50% of the time don't read objects in the 1st iteration to
4303 * test dmu_assign_arcbuf() for the case when there're no
4304 * existing dbufs for the specified offsets.
4306 if (i != 0 || ztest_random(2) != 0) {
4307 error = dmu_read(os, packobj, packoff,
4308 packsize, packbuf, DMU_READ_PREFETCH);
4310 error = dmu_read(os, bigobj, bigoff, bigsize,
4311 bigbuf, DMU_READ_PREFETCH);
4314 compare_and_update_pbbufs(s, packbuf, bigbuf, bigsize,
4318 * We've verified all the old bufwads, and made new ones.
4319 * Now write them out.
4321 dmu_write(os, packobj, packoff, packsize, packbuf, tx);
4322 if (ztest_opts.zo_verbose >= 7) {
4323 (void) printf("writing offset %llx size %llx"
4325 (u_longlong_t)bigoff,
4326 (u_longlong_t)bigsize,
4329 for (off = bigoff, j = 0; j < s; j++, off += chunksize) {
4331 if (i != 5 || chunksize < (SPA_MINBLOCKSIZE * 2)) {
4332 bcopy((caddr_t)bigbuf + (off - bigoff),
4333 bigbuf_arcbufs[j]->b_data, chunksize);
4335 bcopy((caddr_t)bigbuf + (off - bigoff),
4336 bigbuf_arcbufs[2 * j]->b_data,
4338 bcopy((caddr_t)bigbuf + (off - bigoff) +
4340 bigbuf_arcbufs[2 * j + 1]->b_data,
4345 VERIFY(dmu_buf_hold(os, bigobj, off,
4346 FTAG, &dbt, DMU_READ_NO_PREFETCH) == 0);
4348 if (i != 5 || chunksize < (SPA_MINBLOCKSIZE * 2)) {
4349 dmu_assign_arcbuf(bonus_db, off,
4350 bigbuf_arcbufs[j], tx);
4352 dmu_assign_arcbuf(bonus_db, off,
4353 bigbuf_arcbufs[2 * j], tx);
4354 dmu_assign_arcbuf(bonus_db,
4355 off + chunksize / 2,
4356 bigbuf_arcbufs[2 * j + 1], tx);
4359 dmu_buf_rele(dbt, FTAG);
4365 * Sanity check the stuff we just wrote.
4368 void *packcheck = umem_alloc(packsize, UMEM_NOFAIL);
4369 void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL);
4371 VERIFY(0 == dmu_read(os, packobj, packoff,
4372 packsize, packcheck, DMU_READ_PREFETCH));
4373 VERIFY(0 == dmu_read(os, bigobj, bigoff,
4374 bigsize, bigcheck, DMU_READ_PREFETCH));
4376 ASSERT(bcmp(packbuf, packcheck, packsize) == 0);
4377 ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0);
4379 umem_free(packcheck, packsize);
4380 umem_free(bigcheck, bigsize);
4383 txg_wait_open(dmu_objset_pool(os), 0);
4384 } else if (i == 3) {
4385 txg_wait_synced(dmu_objset_pool(os), 0);
4389 dmu_buf_rele(bonus_db, FTAG);
4390 umem_free(packbuf, packsize);
4391 umem_free(bigbuf, bigsize);
4392 umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
4393 umem_free(od, size);
4398 ztest_dmu_write_parallel(ztest_ds_t *zd, uint64_t id)
4402 od = umem_alloc(sizeof (ztest_od_t), UMEM_NOFAIL);
4403 uint64_t offset = (1ULL << (ztest_random(20) + 43)) +
4404 (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
4407 * Have multiple threads write to large offsets in an object
4408 * to verify that parallel writes to an object -- even to the
4409 * same blocks within the object -- doesn't cause any trouble.
4411 ztest_od_init(od, ID_PARALLEL, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0, 0);
4413 if (ztest_object_init(zd, od, sizeof (ztest_od_t), B_FALSE) != 0)
4416 while (ztest_random(10) != 0)
4417 ztest_io(zd, od->od_object, offset);
4419 umem_free(od, sizeof (ztest_od_t));
4423 ztest_dmu_prealloc(ztest_ds_t *zd, uint64_t id)
4426 uint64_t offset = (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT)) +
4427 (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
4428 uint64_t count = ztest_random(20) + 1;
4429 uint64_t blocksize = ztest_random_blocksize();
4432 od = umem_alloc(sizeof (ztest_od_t), UMEM_NOFAIL);
4434 ztest_od_init(od, id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0, 0);
4436 if (ztest_object_init(zd, od, sizeof (ztest_od_t),
4437 !ztest_random(2)) != 0) {
4438 umem_free(od, sizeof (ztest_od_t));
4442 if (ztest_truncate(zd, od->od_object, offset, count * blocksize) != 0) {
4443 umem_free(od, sizeof (ztest_od_t));
4447 ztest_prealloc(zd, od->od_object, offset, count * blocksize);
4449 data = umem_zalloc(blocksize, UMEM_NOFAIL);
4451 while (ztest_random(count) != 0) {
4452 uint64_t randoff = offset + (ztest_random(count) * blocksize);
4453 if (ztest_write(zd, od->od_object, randoff, blocksize,
4456 while (ztest_random(4) != 0)
4457 ztest_io(zd, od->od_object, randoff);
4460 umem_free(data, blocksize);
4461 umem_free(od, sizeof (ztest_od_t));
4465 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4467 #define ZTEST_ZAP_MIN_INTS 1
4468 #define ZTEST_ZAP_MAX_INTS 4
4469 #define ZTEST_ZAP_MAX_PROPS 1000
4472 ztest_zap(ztest_ds_t *zd, uint64_t id)
4474 objset_t *os = zd->zd_os;
4477 uint64_t txg, last_txg;
4478 uint64_t value[ZTEST_ZAP_MAX_INTS];
4479 uint64_t zl_ints, zl_intsize, prop;
4482 char propname[100], txgname[100];
4484 char *hc[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4486 od = umem_alloc(sizeof (ztest_od_t), UMEM_NOFAIL);
4487 ztest_od_init(od, id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0, 0);
4489 if (ztest_object_init(zd, od, sizeof (ztest_od_t),
4490 !ztest_random(2)) != 0)
4493 object = od->od_object;
4496 * Generate a known hash collision, and verify that
4497 * we can lookup and remove both entries.
4499 tx = dmu_tx_create(os);
4500 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
4501 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4504 for (i = 0; i < 2; i++) {
4506 VERIFY3U(0, ==, zap_add(os, object, hc[i], sizeof (uint64_t),
4509 for (i = 0; i < 2; i++) {
4510 VERIFY3U(EEXIST, ==, zap_add(os, object, hc[i],
4511 sizeof (uint64_t), 1, &value[i], tx));
4513 zap_length(os, object, hc[i], &zl_intsize, &zl_ints));
4514 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
4515 ASSERT3U(zl_ints, ==, 1);
4517 for (i = 0; i < 2; i++) {
4518 VERIFY3U(0, ==, zap_remove(os, object, hc[i], tx));
4523 * Generate a buch of random entries.
4525 ints = MAX(ZTEST_ZAP_MIN_INTS, object % ZTEST_ZAP_MAX_INTS);
4527 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
4528 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
4529 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
4530 bzero(value, sizeof (value));
4534 * If these zap entries already exist, validate their contents.
4536 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
4538 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
4539 ASSERT3U(zl_ints, ==, 1);
4541 VERIFY(zap_lookup(os, object, txgname, zl_intsize,
4542 zl_ints, &last_txg) == 0);
4544 VERIFY(zap_length(os, object, propname, &zl_intsize,
4547 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
4548 ASSERT3U(zl_ints, ==, ints);
4550 VERIFY(zap_lookup(os, object, propname, zl_intsize,
4551 zl_ints, value) == 0);
4553 for (i = 0; i < ints; i++) {
4554 ASSERT3U(value[i], ==, last_txg + object + i);
4557 ASSERT3U(error, ==, ENOENT);
4561 * Atomically update two entries in our zap object.
4562 * The first is named txg_%llu, and contains the txg
4563 * in which the property was last updated. The second
4564 * is named prop_%llu, and the nth element of its value
4565 * should be txg + object + n.
4567 tx = dmu_tx_create(os);
4568 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
4569 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4574 fatal(0, "zap future leak: old %llu new %llu", last_txg, txg);
4576 for (i = 0; i < ints; i++)
4577 value[i] = txg + object + i;
4579 VERIFY3U(0, ==, zap_update(os, object, txgname, sizeof (uint64_t),
4581 VERIFY3U(0, ==, zap_update(os, object, propname, sizeof (uint64_t),
4587 * Remove a random pair of entries.
4589 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
4590 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
4591 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
4593 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
4595 if (error == ENOENT)
4600 tx = dmu_tx_create(os);
4601 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
4602 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4605 VERIFY3U(0, ==, zap_remove(os, object, txgname, tx));
4606 VERIFY3U(0, ==, zap_remove(os, object, propname, tx));
4609 umem_free(od, sizeof (ztest_od_t));
4613 * Testcase to test the upgrading of a microzap to fatzap.
4616 ztest_fzap(ztest_ds_t *zd, uint64_t id)
4618 objset_t *os = zd->zd_os;
4620 uint64_t object, txg;
4623 od = umem_alloc(sizeof (ztest_od_t), UMEM_NOFAIL);
4624 ztest_od_init(od, id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0, 0);
4626 if (ztest_object_init(zd, od, sizeof (ztest_od_t),
4627 !ztest_random(2)) != 0)
4629 object = od->od_object;
4632 * Add entries to this ZAP and make sure it spills over
4633 * and gets upgraded to a fatzap. Also, since we are adding
4634 * 2050 entries we should see ptrtbl growth and leaf-block split.
4636 for (i = 0; i < 2050; i++) {
4637 char name[ZFS_MAX_DATASET_NAME_LEN];
4642 (void) snprintf(name, sizeof (name), "fzap-%llu-%llu",
4643 (u_longlong_t)id, (u_longlong_t)value);
4645 tx = dmu_tx_create(os);
4646 dmu_tx_hold_zap(tx, object, B_TRUE, name);
4647 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4650 error = zap_add(os, object, name, sizeof (uint64_t), 1,
4652 ASSERT(error == 0 || error == EEXIST);
4656 umem_free(od, sizeof (ztest_od_t));
4661 ztest_zap_parallel(ztest_ds_t *zd, uint64_t id)
4663 objset_t *os = zd->zd_os;
4665 uint64_t txg, object, count, wsize, wc, zl_wsize, zl_wc;
4667 int i, namelen, error;
4668 int micro = ztest_random(2);
4669 char name[20], string_value[20];
4672 od = umem_alloc(sizeof (ztest_od_t), UMEM_NOFAIL);
4673 ztest_od_init(od, ID_PARALLEL, FTAG, micro, DMU_OT_ZAP_OTHER, 0, 0, 0);
4675 if (ztest_object_init(zd, od, sizeof (ztest_od_t), B_FALSE) != 0) {
4676 umem_free(od, sizeof (ztest_od_t));
4680 object = od->od_object;
4683 * Generate a random name of the form 'xxx.....' where each
4684 * x is a random printable character and the dots are dots.
4685 * There are 94 such characters, and the name length goes from
4686 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4688 namelen = ztest_random(sizeof (name) - 5) + 5 + 1;
4690 for (i = 0; i < 3; i++)
4691 name[i] = '!' + ztest_random('~' - '!' + 1);
4692 for (; i < namelen - 1; i++)
4696 if ((namelen & 1) || micro) {
4697 wsize = sizeof (txg);
4703 data = string_value;
4707 VERIFY0(zap_count(os, object, &count));
4708 ASSERT(count != -1ULL);
4711 * Select an operation: length, lookup, add, update, remove.
4713 i = ztest_random(5);
4716 tx = dmu_tx_create(os);
4717 dmu_tx_hold_zap(tx, object, B_TRUE, NULL);
4718 txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
4720 umem_free(od, sizeof (ztest_od_t));
4723 bcopy(name, string_value, namelen);
4727 bzero(string_value, namelen);
4733 error = zap_length(os, object, name, &zl_wsize, &zl_wc);
4735 ASSERT3U(wsize, ==, zl_wsize);
4736 ASSERT3U(wc, ==, zl_wc);
4738 ASSERT3U(error, ==, ENOENT);
4743 error = zap_lookup(os, object, name, wsize, wc, data);
4745 if (data == string_value &&
4746 bcmp(name, data, namelen) != 0)
4747 fatal(0, "name '%s' != val '%s' len %d",
4748 name, data, namelen);
4750 ASSERT3U(error, ==, ENOENT);
4755 error = zap_add(os, object, name, wsize, wc, data, tx);
4756 ASSERT(error == 0 || error == EEXIST);
4760 VERIFY(zap_update(os, object, name, wsize, wc, data, tx) == 0);
4764 error = zap_remove(os, object, name, tx);
4765 ASSERT(error == 0 || error == ENOENT);
4772 umem_free(od, sizeof (ztest_od_t));
4776 * Commit callback data.
4778 typedef struct ztest_cb_data {
4779 list_node_t zcd_node;
4781 int zcd_expected_err;
4782 boolean_t zcd_added;
4783 boolean_t zcd_called;
4787 /* This is the actual commit callback function */
4789 ztest_commit_callback(void *arg, int error)
4791 ztest_cb_data_t *data = arg;
4792 uint64_t synced_txg;
4794 VERIFY(data != NULL);
4795 VERIFY3S(data->zcd_expected_err, ==, error);
4796 VERIFY(!data->zcd_called);
4798 synced_txg = spa_last_synced_txg(data->zcd_spa);
4799 if (data->zcd_txg > synced_txg)
4800 fatal(0, "commit callback of txg %" PRIu64 " called prematurely"
4801 ", last synced txg = %" PRIu64 "\n", data->zcd_txg,
4804 data->zcd_called = B_TRUE;
4806 if (error == ECANCELED) {
4807 ASSERT0(data->zcd_txg);
4808 ASSERT(!data->zcd_added);
4811 * The private callback data should be destroyed here, but
4812 * since we are going to check the zcd_called field after
4813 * dmu_tx_abort(), we will destroy it there.
4818 ASSERT(data->zcd_added);
4819 ASSERT3U(data->zcd_txg, !=, 0);
4821 (void) mutex_enter(&zcl.zcl_callbacks_lock);
4823 /* See if this cb was called more quickly */
4824 if ((synced_txg - data->zcd_txg) < zc_min_txg_delay)
4825 zc_min_txg_delay = synced_txg - data->zcd_txg;
4827 /* Remove our callback from the list */
4828 list_remove(&zcl.zcl_callbacks, data);
4830 (void) mutex_exit(&zcl.zcl_callbacks_lock);
4832 umem_free(data, sizeof (ztest_cb_data_t));
4835 /* Allocate and initialize callback data structure */
4836 static ztest_cb_data_t *
4837 ztest_create_cb_data(objset_t *os, uint64_t txg)
4839 ztest_cb_data_t *cb_data;
4841 cb_data = umem_zalloc(sizeof (ztest_cb_data_t), UMEM_NOFAIL);
4843 cb_data->zcd_txg = txg;
4844 cb_data->zcd_spa = dmu_objset_spa(os);
4845 list_link_init(&cb_data->zcd_node);
4851 * Commit callback test.
4854 ztest_dmu_commit_callbacks(ztest_ds_t *zd, uint64_t id)
4856 objset_t *os = zd->zd_os;
4859 ztest_cb_data_t *cb_data[3], *tmp_cb;
4860 uint64_t old_txg, txg;
4863 od = umem_alloc(sizeof (ztest_od_t), UMEM_NOFAIL);
4864 ztest_od_init(od, id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0, 0);
4866 if (ztest_object_init(zd, od, sizeof (ztest_od_t), B_FALSE) != 0) {
4867 umem_free(od, sizeof (ztest_od_t));
4871 tx = dmu_tx_create(os);
4873 cb_data[0] = ztest_create_cb_data(os, 0);
4874 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[0]);
4876 dmu_tx_hold_write(tx, od->od_object, 0, sizeof (uint64_t));
4878 /* Every once in a while, abort the transaction on purpose */
4879 if (ztest_random(100) == 0)
4883 error = dmu_tx_assign(tx, TXG_NOWAIT);
4885 txg = error ? 0 : dmu_tx_get_txg(tx);
4887 cb_data[0]->zcd_txg = txg;
4888 cb_data[1] = ztest_create_cb_data(os, txg);
4889 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[1]);
4893 * It's not a strict requirement to call the registered
4894 * callbacks from inside dmu_tx_abort(), but that's what
4895 * it's supposed to happen in the current implementation
4896 * so we will check for that.
4898 for (i = 0; i < 2; i++) {
4899 cb_data[i]->zcd_expected_err = ECANCELED;
4900 VERIFY(!cb_data[i]->zcd_called);
4905 for (i = 0; i < 2; i++) {
4906 VERIFY(cb_data[i]->zcd_called);
4907 umem_free(cb_data[i], sizeof (ztest_cb_data_t));
4910 umem_free(od, sizeof (ztest_od_t));
4914 cb_data[2] = ztest_create_cb_data(os, txg);
4915 dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[2]);
4918 * Read existing data to make sure there isn't a future leak.
4920 VERIFY(0 == dmu_read(os, od->od_object, 0, sizeof (uint64_t),
4921 &old_txg, DMU_READ_PREFETCH));
4924 fatal(0, "future leak: got %" PRIu64 ", open txg is %" PRIu64,
4927 dmu_write(os, od->od_object, 0, sizeof (uint64_t), &txg, tx);
4929 (void) mutex_enter(&zcl.zcl_callbacks_lock);
4932 * Since commit callbacks don't have any ordering requirement and since
4933 * it is theoretically possible for a commit callback to be called
4934 * after an arbitrary amount of time has elapsed since its txg has been
4935 * synced, it is difficult to reliably determine whether a commit
4936 * callback hasn't been called due to high load or due to a flawed
4939 * In practice, we will assume that if after a certain number of txgs a
4940 * commit callback hasn't been called, then most likely there's an
4941 * implementation bug..
4943 tmp_cb = list_head(&zcl.zcl_callbacks);
4944 if (tmp_cb != NULL &&
4945 tmp_cb->zcd_txg + ZTEST_COMMIT_CB_THRESH < txg) {
4946 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4947 PRIu64 ", open txg: %" PRIu64 "\n", tmp_cb->zcd_txg, txg);
4951 * Let's find the place to insert our callbacks.
4953 * Even though the list is ordered by txg, it is possible for the
4954 * insertion point to not be the end because our txg may already be
4955 * quiescing at this point and other callbacks in the open txg
4956 * (from other objsets) may have sneaked in.
4958 tmp_cb = list_tail(&zcl.zcl_callbacks);
4959 while (tmp_cb != NULL && tmp_cb->zcd_txg > txg)
4960 tmp_cb = list_prev(&zcl.zcl_callbacks, tmp_cb);
4962 /* Add the 3 callbacks to the list */
4963 for (i = 0; i < 3; i++) {
4965 list_insert_head(&zcl.zcl_callbacks, cb_data[i]);
4967 list_insert_after(&zcl.zcl_callbacks, tmp_cb,
4970 cb_data[i]->zcd_added = B_TRUE;
4971 VERIFY(!cb_data[i]->zcd_called);
4973 tmp_cb = cb_data[i];
4978 (void) mutex_exit(&zcl.zcl_callbacks_lock);
4982 umem_free(od, sizeof (ztest_od_t));
4986 * Visit each object in the dataset. Verify that its properties
4987 * are consistent what was stored in the block tag when it was created,
4988 * and that its unused bonus buffer space has not been overwritten.
4991 ztest_verify_dnode_bt(ztest_ds_t *zd, uint64_t id)
4993 objset_t *os = zd->zd_os;
4997 for (obj = 0; err == 0; err = dmu_object_next(os, &obj, FALSE, 0)) {
4998 ztest_block_tag_t *bt = NULL;
4999 dmu_object_info_t doi;
5002 if (dmu_bonus_hold(os, obj, FTAG, &db) != 0)
5005 dmu_object_info_from_db(db, &doi);
5006 if (doi.doi_bonus_size >= sizeof (*bt))
5007 bt = ztest_bt_bonus(db);
5009 if (bt && bt->bt_magic == BT_MAGIC) {
5010 ztest_bt_verify(bt, os, obj, doi.doi_dnodesize,
5011 bt->bt_offset, bt->bt_gen, bt->bt_txg,
5013 ztest_verify_unused_bonus(db, bt, obj, os, bt->bt_gen);
5016 dmu_buf_rele(db, FTAG);
5022 ztest_dsl_prop_get_set(ztest_ds_t *zd, uint64_t id)
5024 zfs_prop_t proplist[] = {
5026 ZFS_PROP_COMPRESSION,
5032 (void) rw_rdlock(&ztest_name_lock);
5034 for (p = 0; p < sizeof (proplist) / sizeof (proplist[0]); p++)
5035 (void) ztest_dsl_prop_set_uint64(zd->zd_name, proplist[p],
5036 ztest_random_dsl_prop(proplist[p]), (int)ztest_random(2));
5038 VERIFY0(ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_RECORDSIZE,
5039 ztest_random_blocksize(), (int)ztest_random(2)));
5041 (void) rw_unlock(&ztest_name_lock);
5046 ztest_spa_prop_get_set(ztest_ds_t *zd, uint64_t id)
5048 nvlist_t *props = NULL;
5050 (void) rw_rdlock(&ztest_name_lock);
5052 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO,
5053 ZIO_DEDUPDITTO_MIN + ztest_random(ZIO_DEDUPDITTO_MIN));
5055 VERIFY0(spa_prop_get(ztest_spa, &props));
5057 if (ztest_opts.zo_verbose >= 6)
5058 dump_nvlist(props, 4);
5062 (void) rw_unlock(&ztest_name_lock);
5066 user_release_one(const char *snapname, const char *holdname)
5068 nvlist_t *snaps, *holds;
5071 snaps = fnvlist_alloc();
5072 holds = fnvlist_alloc();
5073 fnvlist_add_boolean(holds, holdname);
5074 fnvlist_add_nvlist(snaps, snapname, holds);
5075 fnvlist_free(holds);
5076 error = dsl_dataset_user_release(snaps, NULL);
5077 fnvlist_free(snaps);
5082 * Test snapshot hold/release and deferred destroy.
5085 ztest_dmu_snapshot_hold(ztest_ds_t *zd, uint64_t id)
5088 objset_t *os = zd->zd_os;
5092 char clonename[100];
5094 char osname[ZFS_MAX_DATASET_NAME_LEN];
5097 (void) rw_rdlock(&ztest_name_lock);
5099 dmu_objset_name(os, osname);
5101 (void) snprintf(snapname, sizeof (snapname), "sh1_%llu",
5103 (void) snprintf(fullname, sizeof (fullname), "%s@%s", osname, snapname);
5104 (void) snprintf(clonename, sizeof (clonename),
5105 "%s/ch1_%llu", osname, (u_longlong_t)id);
5106 (void) snprintf(tag, sizeof (tag), "tag_%llu", (u_longlong_t)id);
5109 * Clean up from any previous run.
5111 error = dsl_destroy_head(clonename);
5112 if (error != ENOENT)
5114 error = user_release_one(fullname, tag);
5115 if (error != ESRCH && error != ENOENT)
5117 error = dsl_destroy_snapshot(fullname, B_FALSE);
5118 if (error != ENOENT)
5122 * Create snapshot, clone it, mark snap for deferred destroy,
5123 * destroy clone, verify snap was also destroyed.
5125 error = dmu_objset_snapshot_one(osname, snapname);
5127 if (error == ENOSPC) {
5128 ztest_record_enospc("dmu_objset_snapshot");
5131 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
5134 error = dmu_objset_clone(clonename, fullname);
5136 if (error == ENOSPC) {
5137 ztest_record_enospc("dmu_objset_clone");
5140 fatal(0, "dmu_objset_clone(%s) = %d", clonename, error);
5143 error = dsl_destroy_snapshot(fullname, B_TRUE);
5145 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5149 error = dsl_destroy_head(clonename);
5151 fatal(0, "dsl_destroy_head(%s) = %d", clonename, error);
5153 error = dmu_objset_hold(fullname, FTAG, &origin);
5154 if (error != ENOENT)
5155 fatal(0, "dmu_objset_hold(%s) = %d", fullname, error);
5158 * Create snapshot, add temporary hold, verify that we can't
5159 * destroy a held snapshot, mark for deferred destroy,
5160 * release hold, verify snapshot was destroyed.
5162 error = dmu_objset_snapshot_one(osname, snapname);
5164 if (error == ENOSPC) {
5165 ztest_record_enospc("dmu_objset_snapshot");
5168 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
5171 holds = fnvlist_alloc();
5172 fnvlist_add_string(holds, fullname, tag);
5173 error = dsl_dataset_user_hold(holds, 0, NULL);
5174 fnvlist_free(holds);
5176 if (error == ENOSPC) {
5177 ztest_record_enospc("dsl_dataset_user_hold");
5180 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
5181 fullname, tag, error);
5184 error = dsl_destroy_snapshot(fullname, B_FALSE);
5185 if (error != EBUSY) {
5186 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
5190 error = dsl_destroy_snapshot(fullname, B_TRUE);
5192 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5196 error = user_release_one(fullname, tag);
5198 fatal(0, "user_release_one(%s, %s) = %d", fullname, tag, error);
5200 VERIFY3U(dmu_objset_hold(fullname, FTAG, &origin), ==, ENOENT);
5203 (void) rw_unlock(&ztest_name_lock);
5207 * Inject random faults into the on-disk data.
5211 ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
5213 ztest_shared_t *zs = ztest_shared;
5214 spa_t *spa = ztest_spa;
5218 uint64_t bad = 0x1990c0ffeedecadeull;
5223 int bshift = SPA_MAXBLOCKSHIFT + 2;
5229 boolean_t islog = B_FALSE;
5231 path0 = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
5232 pathrand = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
5234 mutex_enter(&ztest_vdev_lock);
5235 maxfaults = MAXFAULTS();
5236 leaves = MAX(zs->zs_mirrors, 1) * ztest_opts.zo_raidz;
5237 mirror_save = zs->zs_mirrors;
5238 mutex_exit(&ztest_vdev_lock);
5240 ASSERT(leaves >= 1);
5243 * Grab the name lock as reader. There are some operations
5244 * which don't like to have their vdevs changed while
5245 * they are in progress (i.e. spa_change_guid). Those
5246 * operations will have grabbed the name lock as writer.
5248 (void) rw_rdlock(&ztest_name_lock);
5251 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
5253 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
5255 if (ztest_random(2) == 0) {
5257 * Inject errors on a normal data device or slog device.
5259 top = ztest_random_vdev_top(spa, B_TRUE);
5260 leaf = ztest_random(leaves) + zs->zs_splits;
5263 * Generate paths to the first leaf in this top-level vdev,
5264 * and to the random leaf we selected. We'll induce transient
5265 * write failures and random online/offline activity on leaf 0,
5266 * and we'll write random garbage to the randomly chosen leaf.
5268 (void) snprintf(path0, MAXPATHLEN, ztest_dev_template,
5269 ztest_opts.zo_dir, ztest_opts.zo_pool,
5270 top * leaves + zs->zs_splits);
5271 (void) snprintf(pathrand, MAXPATHLEN, ztest_dev_template,
5272 ztest_opts.zo_dir, ztest_opts.zo_pool,
5273 top * leaves + leaf);
5275 vd0 = vdev_lookup_by_path(spa->spa_root_vdev, path0);
5276 if (vd0 != NULL && vd0->vdev_top->vdev_islog)
5280 * If the top-level vdev needs to be resilvered
5281 * then we only allow faults on the device that is
5284 if (vd0 != NULL && maxfaults != 1 &&
5285 (!vdev_resilver_needed(vd0->vdev_top, NULL, NULL) ||
5286 vd0->vdev_resilver_txg != 0)) {
5288 * Make vd0 explicitly claim to be unreadable,
5289 * or unwriteable, or reach behind its back
5290 * and close the underlying fd. We can do this if
5291 * maxfaults == 0 because we'll fail and reexecute,
5292 * and we can do it if maxfaults >= 2 because we'll
5293 * have enough redundancy. If maxfaults == 1, the
5294 * combination of this with injection of random data
5295 * corruption below exceeds the pool's fault tolerance.
5297 vdev_file_t *vf = vd0->vdev_tsd;
5299 if (vf != NULL && ztest_random(3) == 0) {
5300 (void) close(vf->vf_vnode->v_fd);
5301 vf->vf_vnode->v_fd = -1;
5302 } else if (ztest_random(2) == 0) {
5303 vd0->vdev_cant_read = B_TRUE;
5305 vd0->vdev_cant_write = B_TRUE;
5307 guid0 = vd0->vdev_guid;
5311 * Inject errors on an l2cache device.
5313 spa_aux_vdev_t *sav = &spa->spa_l2cache;
5315 if (sav->sav_count == 0) {
5316 spa_config_exit(spa, SCL_STATE, FTAG);
5317 (void) rw_unlock(&ztest_name_lock);
5320 vd0 = sav->sav_vdevs[ztest_random(sav->sav_count)];
5321 guid0 = vd0->vdev_guid;
5322 (void) strcpy(path0, vd0->vdev_path);
5323 (void) strcpy(pathrand, vd0->vdev_path);
5327 maxfaults = INT_MAX; /* no limit on cache devices */
5330 spa_config_exit(spa, SCL_STATE, FTAG);
5331 (void) rw_unlock(&ztest_name_lock);
5334 * If we can tolerate two or more faults, or we're dealing
5335 * with a slog, randomly online/offline vd0.
5337 if ((maxfaults >= 2 || islog) && guid0 != 0) {
5338 if (ztest_random(10) < 6) {
5339 int flags = (ztest_random(2) == 0 ?
5340 ZFS_OFFLINE_TEMPORARY : 0);
5343 * We have to grab the zs_name_lock as writer to
5344 * prevent a race between offlining a slog and
5345 * destroying a dataset. Offlining the slog will
5346 * grab a reference on the dataset which may cause
5347 * dsl_destroy_head() to fail with EBUSY thus
5348 * leaving the dataset in an inconsistent state.
5351 (void) rw_wrlock(&ztest_name_lock);
5353 VERIFY(vdev_offline(spa, guid0, flags) != EBUSY);
5356 (void) rw_unlock(&ztest_name_lock);
5359 * Ideally we would like to be able to randomly
5360 * call vdev_[on|off]line without holding locks
5361 * to force unpredictable failures but the side
5362 * effects of vdev_[on|off]line prevent us from
5363 * doing so. We grab the ztest_vdev_lock here to
5364 * prevent a race between injection testing and
5367 mutex_enter(&ztest_vdev_lock);
5368 (void) vdev_online(spa, guid0, 0, NULL);
5369 mutex_exit(&ztest_vdev_lock);
5377 * We have at least single-fault tolerance, so inject data corruption.
5379 fd = open(pathrand, O_RDWR);
5381 if (fd == -1) /* we hit a gap in the device namespace */
5384 fsize = lseek(fd, 0, SEEK_END);
5386 while (--iters != 0) {
5388 * The offset must be chosen carefully to ensure that
5389 * we do not inject a given logical block with errors
5390 * on two different leaf devices, because ZFS can not
5391 * tolerate that (if maxfaults==1).
5393 * We divide each leaf into chunks of size
5394 * (# leaves * SPA_MAXBLOCKSIZE * 4). Within each chunk
5395 * there is a series of ranges to which we can inject errors.
5396 * Each range can accept errors on only a single leaf vdev.
5397 * The error injection ranges are separated by ranges
5398 * which we will not inject errors on any device (DMZs).
5399 * Each DMZ must be large enough such that a single block
5400 * can not straddle it, so that a single block can not be
5401 * a target in two different injection ranges (on different
5404 * For example, with 3 leaves, each chunk looks like:
5405 * 0 to 32M: injection range for leaf 0
5406 * 32M to 64M: DMZ - no injection allowed
5407 * 64M to 96M: injection range for leaf 1
5408 * 96M to 128M: DMZ - no injection allowed
5409 * 128M to 160M: injection range for leaf 2
5410 * 160M to 192M: DMZ - no injection allowed
5412 offset = ztest_random(fsize / (leaves << bshift)) *
5413 (leaves << bshift) + (leaf << bshift) +
5414 (ztest_random(1ULL << (bshift - 1)) & -8ULL);
5417 * Only allow damage to the labels at one end of the vdev.
5419 * If all labels are damaged, the device will be totally
5420 * inaccessible, which will result in loss of data,
5421 * because we also damage (parts of) the other side of
5424 * Additionally, we will always have both an even and an
5425 * odd label, so that we can handle crashes in the
5426 * middle of vdev_config_sync().
5428 if ((leaf & 1) == 0 && offset < VDEV_LABEL_START_SIZE)
5432 * The two end labels are stored at the "end" of the disk, but
5433 * the end of the disk (vdev_psize) is aligned to
5434 * sizeof (vdev_label_t).
5436 uint64_t psize = P2ALIGN(fsize, sizeof (vdev_label_t));
5437 if ((leaf & 1) == 1 &&
5438 offset + sizeof (bad) > psize - VDEV_LABEL_END_SIZE)
5441 mutex_enter(&ztest_vdev_lock);
5442 if (mirror_save != zs->zs_mirrors) {
5443 mutex_exit(&ztest_vdev_lock);
5448 if (pwrite(fd, &bad, sizeof (bad), offset) != sizeof (bad))
5449 fatal(1, "can't inject bad word at 0x%llx in %s",
5452 mutex_exit(&ztest_vdev_lock);
5454 if (ztest_opts.zo_verbose >= 7)
5455 (void) printf("injected bad word into %s,"
5456 " offset 0x%llx\n", pathrand, (u_longlong_t)offset);
5461 umem_free(path0, MAXPATHLEN);
5462 umem_free(pathrand, MAXPATHLEN);
5466 * Verify that DDT repair works as expected.
5469 ztest_ddt_repair(ztest_ds_t *zd, uint64_t id)
5471 ztest_shared_t *zs = ztest_shared;
5472 spa_t *spa = ztest_spa;
5473 objset_t *os = zd->zd_os;
5475 uint64_t object, blocksize, txg, pattern, psize;
5476 enum zio_checksum checksum = spa_dedup_checksum(spa);
5481 int copies = 2 * ZIO_DEDUPDITTO_MIN;
5484 blocksize = ztest_random_blocksize();
5485 blocksize = MIN(blocksize, 2048); /* because we write so many */
5487 od = umem_alloc(sizeof (ztest_od_t), UMEM_NOFAIL);
5488 ztest_od_init(od, id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0, 0);
5490 if (ztest_object_init(zd, od, sizeof (ztest_od_t), B_FALSE) != 0) {
5491 umem_free(od, sizeof (ztest_od_t));
5496 * Take the name lock as writer to prevent anyone else from changing
5497 * the pool and dataset properies we need to maintain during this test.
5499 (void) rw_wrlock(&ztest_name_lock);
5501 if (ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_DEDUP, checksum,
5503 ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_COPIES, 1,
5505 (void) rw_unlock(&ztest_name_lock);
5506 umem_free(od, sizeof (ztest_od_t));
5510 dmu_objset_stats_t dds;
5511 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
5512 dmu_objset_fast_stat(os, &dds);
5513 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
5515 object = od[0].od_object;
5516 blocksize = od[0].od_blocksize;
5517 pattern = zs->zs_guid ^ dds.dds_guid;
5519 ASSERT(object != 0);
5521 tx = dmu_tx_create(os);
5522 dmu_tx_hold_write(tx, object, 0, copies * blocksize);
5523 txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
5525 (void) rw_unlock(&ztest_name_lock);
5526 umem_free(od, sizeof (ztest_od_t));
5531 * Write all the copies of our block.
5533 for (i = 0; i < copies; i++) {
5534 uint64_t offset = i * blocksize;
5535 int error = dmu_buf_hold(os, object, offset, FTAG, &db,
5536 DMU_READ_NO_PREFETCH);
5538 fatal(B_FALSE, "dmu_buf_hold(%p, %llu, %llu) = %u",
5539 os, (long long)object, (long long) offset, error);
5541 ASSERT(db->db_offset == offset);
5542 ASSERT(db->db_size == blocksize);
5543 ASSERT(ztest_pattern_match(db->db_data, db->db_size, pattern) ||
5544 ztest_pattern_match(db->db_data, db->db_size, 0ULL));
5545 dmu_buf_will_fill(db, tx);
5546 ztest_pattern_set(db->db_data, db->db_size, pattern);
5547 dmu_buf_rele(db, FTAG);
5551 txg_wait_synced(spa_get_dsl(spa), txg);
5554 * Find out what block we got.
5556 VERIFY0(dmu_buf_hold(os, object, 0, FTAG, &db,
5557 DMU_READ_NO_PREFETCH));
5558 blk = *((dmu_buf_impl_t *)db)->db_blkptr;
5559 dmu_buf_rele(db, FTAG);
5562 * Damage the block. Dedup-ditto will save us when we read it later.
5564 psize = BP_GET_PSIZE(&blk);
5565 abd = abd_alloc_linear(psize, B_TRUE);
5566 ztest_pattern_set(abd_to_buf(abd), psize, ~pattern);
5568 (void) zio_wait(zio_rewrite(NULL, spa, 0, &blk,
5569 abd, psize, NULL, NULL, ZIO_PRIORITY_SYNC_WRITE,
5570 ZIO_FLAG_CANFAIL | ZIO_FLAG_INDUCE_DAMAGE, NULL));
5574 (void) rw_unlock(&ztest_name_lock);
5575 umem_free(od, sizeof (ztest_od_t));
5583 ztest_scrub(ztest_ds_t *zd, uint64_t id)
5585 spa_t *spa = ztest_spa;
5587 (void) spa_scan(spa, POOL_SCAN_SCRUB);
5588 (void) poll(NULL, 0, 100); /* wait a moment, then force a restart */
5589 (void) spa_scan(spa, POOL_SCAN_SCRUB);
5593 * Change the guid for the pool.
5597 ztest_reguid(ztest_ds_t *zd, uint64_t id)
5599 spa_t *spa = ztest_spa;
5600 uint64_t orig, load;
5603 orig = spa_guid(spa);
5604 load = spa_load_guid(spa);
5606 (void) rw_wrlock(&ztest_name_lock);
5607 error = spa_change_guid(spa);
5608 (void) rw_unlock(&ztest_name_lock);
5613 if (ztest_opts.zo_verbose >= 4) {
5614 (void) printf("Changed guid old %llu -> %llu\n",
5615 (u_longlong_t)orig, (u_longlong_t)spa_guid(spa));
5618 VERIFY3U(orig, !=, spa_guid(spa));
5619 VERIFY3U(load, ==, spa_load_guid(spa));
5623 * Rename the pool to a different name and then rename it back.
5627 ztest_spa_rename(ztest_ds_t *zd, uint64_t id)
5629 char *oldname, *newname;
5632 (void) rw_wrlock(&ztest_name_lock);
5634 oldname = ztest_opts.zo_pool;
5635 newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
5636 (void) strcpy(newname, oldname);
5637 (void) strcat(newname, "_tmp");
5642 VERIFY3U(0, ==, spa_rename(oldname, newname));
5645 * Try to open it under the old name, which shouldn't exist
5647 VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
5650 * Open it under the new name and make sure it's still the same spa_t.
5652 VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
5654 ASSERT(spa == ztest_spa);
5655 spa_close(spa, FTAG);
5658 * Rename it back to the original
5660 VERIFY3U(0, ==, spa_rename(newname, oldname));
5663 * Make sure it can still be opened
5665 VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
5667 ASSERT(spa == ztest_spa);
5668 spa_close(spa, FTAG);
5670 umem_free(newname, strlen(newname) + 1);
5672 (void) rw_unlock(&ztest_name_lock);
5676 ztest_fletcher(ztest_ds_t *zd, uint64_t id)
5678 hrtime_t end = gethrtime() + NANOSEC;
5680 while (gethrtime() <= end) {
5681 int run_count = 100;
5683 struct abd *abd_data, *abd_meta;
5688 zio_cksum_t zc_ref_byteswap;
5690 size = ztest_random_blocksize();
5692 buf = umem_alloc(size, UMEM_NOFAIL);
5693 abd_data = abd_alloc(size, B_FALSE);
5694 abd_meta = abd_alloc(size, B_TRUE);
5696 for (i = 0, ptr = buf; i < size / sizeof (*ptr); i++, ptr++)
5697 *ptr = ztest_random(UINT_MAX);
5699 abd_copy_from_buf_off(abd_data, buf, 0, size);
5700 abd_copy_from_buf_off(abd_meta, buf, 0, size);
5702 VERIFY0(fletcher_4_impl_set("scalar"));
5703 fletcher_4_native(buf, size, NULL, &zc_ref);
5704 fletcher_4_byteswap(buf, size, NULL, &zc_ref_byteswap);
5706 VERIFY0(fletcher_4_impl_set("cycle"));
5707 while (run_count-- > 0) {
5709 zio_cksum_t zc_byteswap;
5711 fletcher_4_byteswap(buf, size, NULL, &zc_byteswap);
5712 fletcher_4_native(buf, size, NULL, &zc);
5714 VERIFY0(bcmp(&zc, &zc_ref, sizeof (zc)));
5715 VERIFY0(bcmp(&zc_byteswap, &zc_ref_byteswap,
5716 sizeof (zc_byteswap)));
5718 /* Test ABD - data */
5719 abd_fletcher_4_byteswap(abd_data, size, NULL,
5721 abd_fletcher_4_native(abd_data, size, NULL, &zc);
5723 VERIFY0(bcmp(&zc, &zc_ref, sizeof (zc)));
5724 VERIFY0(bcmp(&zc_byteswap, &zc_ref_byteswap,
5725 sizeof (zc_byteswap)));
5727 /* Test ABD - metadata */
5728 abd_fletcher_4_byteswap(abd_meta, size, NULL,
5730 abd_fletcher_4_native(abd_meta, size, NULL, &zc);
5732 VERIFY0(bcmp(&zc, &zc_ref, sizeof (zc)));
5733 VERIFY0(bcmp(&zc_byteswap, &zc_ref_byteswap,
5734 sizeof (zc_byteswap)));
5738 umem_free(buf, size);
5745 ztest_fletcher_incr(ztest_ds_t *zd, uint64_t id)
5752 zio_cksum_t zc_ref_bswap;
5754 hrtime_t end = gethrtime() + NANOSEC;
5756 while (gethrtime() <= end) {
5757 int run_count = 100;
5759 size = ztest_random_blocksize();
5760 buf = umem_alloc(size, UMEM_NOFAIL);
5762 for (i = 0, ptr = buf; i < size / sizeof (*ptr); i++, ptr++)
5763 *ptr = ztest_random(UINT_MAX);
5765 VERIFY0(fletcher_4_impl_set("scalar"));
5766 fletcher_4_native(buf, size, NULL, &zc_ref);
5767 fletcher_4_byteswap(buf, size, NULL, &zc_ref_bswap);
5769 VERIFY0(fletcher_4_impl_set("cycle"));
5771 while (run_count-- > 0) {
5773 zio_cksum_t zc_bswap;
5776 ZIO_SET_CHECKSUM(&zc, 0, 0, 0, 0);
5777 ZIO_SET_CHECKSUM(&zc_bswap, 0, 0, 0, 0);
5779 while (pos < size) {
5780 size_t inc = 64 * ztest_random(size / 67);
5781 /* sometimes add few bytes to test non-simd */
5782 if (ztest_random(100) < 10)
5783 inc += P2ALIGN(ztest_random(64),
5786 if (inc > (size - pos))
5789 fletcher_4_incremental_native(buf + pos, inc,
5791 fletcher_4_incremental_byteswap(buf + pos, inc,
5797 VERIFY3U(pos, ==, size);
5799 VERIFY(ZIO_CHECKSUM_EQUAL(zc, zc_ref));
5800 VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap, zc_ref_bswap));
5803 * verify if incremental on the whole buffer is
5804 * equivalent to non-incremental version
5806 ZIO_SET_CHECKSUM(&zc, 0, 0, 0, 0);
5807 ZIO_SET_CHECKSUM(&zc_bswap, 0, 0, 0, 0);
5809 fletcher_4_incremental_native(buf, size, &zc);
5810 fletcher_4_incremental_byteswap(buf, size, &zc_bswap);
5812 VERIFY(ZIO_CHECKSUM_EQUAL(zc, zc_ref));
5813 VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap, zc_ref_bswap));
5816 umem_free(buf, size);
5821 ztest_check_path(char *path)
5824 /* return true on success */
5825 return (!stat(path, &s));
5829 ztest_get_zdb_bin(char *bin, int len)
5833 * Try to use ZDB_PATH and in-tree zdb path. If not successful, just
5834 * let popen to search through PATH.
5836 if ((zdb_path = getenv("ZDB_PATH"))) {
5837 strlcpy(bin, zdb_path, len); /* In env */
5838 if (!ztest_check_path(bin)) {
5839 ztest_dump_core = 0;
5840 fatal(1, "invalid ZDB_PATH '%s'", bin);
5845 VERIFY(realpath(getexecname(), bin) != NULL);
5846 if (strstr(bin, "/ztest/")) {
5847 strstr(bin, "/ztest/")[0] = '\0'; /* In-tree */
5848 strcat(bin, "/zdb/zdb");
5849 if (ztest_check_path(bin))
5856 * Verify pool integrity by running zdb.
5859 ztest_run_zdb(char *pool)
5865 const int len = MAXPATHLEN + MAXNAMELEN + 20;
5868 bin = umem_alloc(len, UMEM_NOFAIL);
5869 zdb = umem_alloc(len, UMEM_NOFAIL);
5870 zbuf = umem_alloc(1024, UMEM_NOFAIL);
5872 ztest_get_zdb_bin(bin, len);
5875 "%s -bcc%s%s -G -d -U %s %s",
5877 ztest_opts.zo_verbose >= 3 ? "s" : "",
5878 ztest_opts.zo_verbose >= 4 ? "v" : "",
5882 if (ztest_opts.zo_verbose >= 5)
5883 (void) printf("Executing %s\n", strstr(zdb, "zdb "));
5885 fp = popen(zdb, "r");
5887 while (fgets(zbuf, 1024, fp) != NULL)
5888 if (ztest_opts.zo_verbose >= 3)
5889 (void) printf("%s", zbuf);
5891 status = pclose(fp);
5896 ztest_dump_core = 0;
5897 if (WIFEXITED(status))
5898 fatal(0, "'%s' exit code %d", zdb, WEXITSTATUS(status));
5900 fatal(0, "'%s' died with signal %d", zdb, WTERMSIG(status));
5902 umem_free(bin, len);
5903 umem_free(zdb, len);
5904 umem_free(zbuf, 1024);
5908 ztest_walk_pool_directory(char *header)
5912 if (ztest_opts.zo_verbose >= 6)
5913 (void) printf("%s\n", header);
5915 mutex_enter(&spa_namespace_lock);
5916 while ((spa = spa_next(spa)) != NULL)
5917 if (ztest_opts.zo_verbose >= 6)
5918 (void) printf("\t%s\n", spa_name(spa));
5919 mutex_exit(&spa_namespace_lock);
5923 ztest_spa_import_export(char *oldname, char *newname)
5925 nvlist_t *config, *newconfig;
5930 if (ztest_opts.zo_verbose >= 4) {
5931 (void) printf("import/export: old = %s, new = %s\n",
5936 * Clean up from previous runs.
5938 (void) spa_destroy(newname);
5941 * Get the pool's configuration and guid.
5943 VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
5946 * Kick off a scrub to tickle scrub/export races.
5948 if (ztest_random(2) == 0)
5949 (void) spa_scan(spa, POOL_SCAN_SCRUB);
5951 pool_guid = spa_guid(spa);
5952 spa_close(spa, FTAG);
5954 ztest_walk_pool_directory("pools before export");
5959 VERIFY3U(0, ==, spa_export(oldname, &config, B_FALSE, B_FALSE));
5961 ztest_walk_pool_directory("pools after export");
5966 newconfig = spa_tryimport(config);
5967 ASSERT(newconfig != NULL);
5968 nvlist_free(newconfig);
5971 * Import it under the new name.
5973 error = spa_import(newname, config, NULL, 0);
5975 dump_nvlist(config, 0);
5976 fatal(B_FALSE, "couldn't import pool %s as %s: error %u",
5977 oldname, newname, error);
5980 ztest_walk_pool_directory("pools after import");
5983 * Try to import it again -- should fail with EEXIST.
5985 VERIFY3U(EEXIST, ==, spa_import(newname, config, NULL, 0));
5988 * Try to import it under a different name -- should fail with EEXIST.
5990 VERIFY3U(EEXIST, ==, spa_import(oldname, config, NULL, 0));
5993 * Verify that the pool is no longer visible under the old name.
5995 VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
5998 * Verify that we can open and close the pool using the new name.
6000 VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
6001 ASSERT(pool_guid == spa_guid(spa));
6002 spa_close(spa, FTAG);
6004 nvlist_free(config);
6008 ztest_resume(spa_t *spa)
6010 if (spa_suspended(spa) && ztest_opts.zo_verbose >= 6)
6011 (void) printf("resuming from suspended state\n");
6012 spa_vdev_state_enter(spa, SCL_NONE);
6013 vdev_clear(spa, NULL);
6014 (void) spa_vdev_state_exit(spa, NULL, 0);
6015 (void) zio_resume(spa);
6019 ztest_resume_thread(void *arg)
6023 while (!ztest_exiting) {
6024 if (spa_suspended(spa))
6026 (void) poll(NULL, 0, 100);
6029 * Periodically change the zfs_compressed_arc_enabled setting.
6031 if (ztest_random(10) == 0)
6032 zfs_compressed_arc_enabled = ztest_random(2);
6035 * Periodically change the zfs_abd_scatter_enabled setting.
6037 if (ztest_random(10) == 0)
6038 zfs_abd_scatter_enabled = ztest_random(2);
6050 ztest_deadman_alarm(int sig)
6052 fatal(0, "failed to complete within %d seconds of deadline", GRACE);
6057 ztest_execute(int test, ztest_info_t *zi, uint64_t id)
6059 ztest_ds_t *zd = &ztest_ds[id % ztest_opts.zo_datasets];
6060 ztest_shared_callstate_t *zc = ZTEST_GET_SHARED_CALLSTATE(test);
6061 hrtime_t functime = gethrtime();
6064 for (i = 0; i < zi->zi_iters; i++)
6065 zi->zi_func(zd, id);
6067 functime = gethrtime() - functime;
6069 atomic_add_64(&zc->zc_count, 1);
6070 atomic_add_64(&zc->zc_time, functime);
6072 if (ztest_opts.zo_verbose >= 4)
6073 (void) printf("%6.2f sec in %s\n",
6074 (double)functime / NANOSEC, zi->zi_funcname);
6078 ztest_thread(void *arg)
6081 uint64_t id = (uintptr_t)arg;
6082 ztest_shared_t *zs = ztest_shared;
6086 ztest_shared_callstate_t *zc;
6088 while ((now = gethrtime()) < zs->zs_thread_stop) {
6090 * See if it's time to force a crash.
6092 if (now > zs->zs_thread_kill)
6096 * If we're getting ENOSPC with some regularity, stop.
6098 if (zs->zs_enospc_count > 10)
6102 * Pick a random function to execute.
6104 rand = ztest_random(ZTEST_FUNCS);
6105 zi = &ztest_info[rand];
6106 zc = ZTEST_GET_SHARED_CALLSTATE(rand);
6107 call_next = zc->zc_next;
6109 if (now >= call_next &&
6110 atomic_cas_64(&zc->zc_next, call_next, call_next +
6111 ztest_random(2 * zi->zi_interval[0] + 1)) == call_next) {
6112 ztest_execute(rand, zi, id);
6122 ztest_dataset_name(char *dsname, char *pool, int d)
6124 (void) snprintf(dsname, ZFS_MAX_DATASET_NAME_LEN, "%s/ds_%d", pool, d);
6128 ztest_dataset_destroy(int d)
6130 char name[ZFS_MAX_DATASET_NAME_LEN];
6133 ztest_dataset_name(name, ztest_opts.zo_pool, d);
6135 if (ztest_opts.zo_verbose >= 3)
6136 (void) printf("Destroying %s to free up space\n", name);
6139 * Cleanup any non-standard clones and snapshots. In general,
6140 * ztest thread t operates on dataset (t % zopt_datasets),
6141 * so there may be more than one thing to clean up.
6143 for (t = d; t < ztest_opts.zo_threads;
6144 t += ztest_opts.zo_datasets)
6145 ztest_dsl_dataset_cleanup(name, t);
6147 (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
6148 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
6152 ztest_dataset_dirobj_verify(ztest_ds_t *zd)
6154 uint64_t usedobjs, dirobjs, scratch;
6157 * ZTEST_DIROBJ is the object directory for the entire dataset.
6158 * Therefore, the number of objects in use should equal the
6159 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
6160 * If not, we have an object leak.
6162 * Note that we can only check this in ztest_dataset_open(),
6163 * when the open-context and syncing-context values agree.
6164 * That's because zap_count() returns the open-context value,
6165 * while dmu_objset_space() returns the rootbp fill count.
6167 VERIFY3U(0, ==, zap_count(zd->zd_os, ZTEST_DIROBJ, &dirobjs));
6168 dmu_objset_space(zd->zd_os, &scratch, &scratch, &usedobjs, &scratch);
6169 ASSERT3U(dirobjs + 1, ==, usedobjs);
6173 ztest_dataset_open(int d)
6175 ztest_ds_t *zd = &ztest_ds[d];
6176 uint64_t committed_seq = ZTEST_GET_SHARED_DS(d)->zd_seq;
6179 char name[ZFS_MAX_DATASET_NAME_LEN];
6182 ztest_dataset_name(name, ztest_opts.zo_pool, d);
6184 (void) rw_rdlock(&ztest_name_lock);
6186 error = ztest_dataset_create(name);
6187 if (error == ENOSPC) {
6188 (void) rw_unlock(&ztest_name_lock);
6189 ztest_record_enospc(FTAG);
6192 ASSERT(error == 0 || error == EEXIST);
6194 VERIFY0(dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, zd, &os));
6195 (void) rw_unlock(&ztest_name_lock);
6197 ztest_zd_init(zd, ZTEST_GET_SHARED_DS(d), os);
6199 zilog = zd->zd_zilog;
6201 if (zilog->zl_header->zh_claim_lr_seq != 0 &&
6202 zilog->zl_header->zh_claim_lr_seq < committed_seq)
6203 fatal(0, "missing log records: claimed %llu < committed %llu",
6204 zilog->zl_header->zh_claim_lr_seq, committed_seq);
6206 ztest_dataset_dirobj_verify(zd);
6208 zil_replay(os, zd, ztest_replay_vector);
6210 ztest_dataset_dirobj_verify(zd);
6212 if (ztest_opts.zo_verbose >= 6)
6213 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
6215 (u_longlong_t)zilog->zl_parse_blk_count,
6216 (u_longlong_t)zilog->zl_parse_lr_count,
6217 (u_longlong_t)zilog->zl_replaying_seq);
6219 zilog = zil_open(os, ztest_get_data);
6221 if (zilog->zl_replaying_seq != 0 &&
6222 zilog->zl_replaying_seq < committed_seq)
6223 fatal(0, "missing log records: replayed %llu < committed %llu",
6224 zilog->zl_replaying_seq, committed_seq);
6230 ztest_dataset_close(int d)
6232 ztest_ds_t *zd = &ztest_ds[d];
6234 zil_close(zd->zd_zilog);
6235 dmu_objset_disown(zd->zd_os, zd);
6241 * Kick off threads to run tests on all datasets in parallel.
6244 ztest_run(ztest_shared_t *zs)
6249 kthread_t *resume_thread;
6254 ztest_exiting = B_FALSE;
6257 * Initialize parent/child shared state.
6259 mutex_init(&ztest_vdev_lock, NULL, MUTEX_DEFAULT, NULL);
6260 VERIFY(rwlock_init(&ztest_name_lock, USYNC_THREAD, NULL) == 0);
6262 zs->zs_thread_start = gethrtime();
6263 zs->zs_thread_stop =
6264 zs->zs_thread_start + ztest_opts.zo_passtime * NANOSEC;
6265 zs->zs_thread_stop = MIN(zs->zs_thread_stop, zs->zs_proc_stop);
6266 zs->zs_thread_kill = zs->zs_thread_stop;
6267 if (ztest_random(100) < ztest_opts.zo_killrate) {
6268 zs->zs_thread_kill -=
6269 ztest_random(ztest_opts.zo_passtime * NANOSEC);
6272 mutex_init(&zcl.zcl_callbacks_lock, NULL, MUTEX_DEFAULT, NULL);
6274 list_create(&zcl.zcl_callbacks, sizeof (ztest_cb_data_t),
6275 offsetof(ztest_cb_data_t, zcd_node));
6280 kernel_init(FREAD | FWRITE);
6281 VERIFY0(spa_open(ztest_opts.zo_pool, &spa, FTAG));
6282 spa->spa_debug = B_TRUE;
6283 metaslab_preload_limit = ztest_random(20) + 1;
6286 dmu_objset_stats_t dds;
6287 VERIFY0(dmu_objset_own(ztest_opts.zo_pool,
6288 DMU_OST_ANY, B_TRUE, FTAG, &os));
6289 dsl_pool_config_enter(dmu_objset_pool(os), FTAG);
6290 dmu_objset_fast_stat(os, &dds);
6291 dsl_pool_config_exit(dmu_objset_pool(os), FTAG);
6292 zs->zs_guid = dds.dds_guid;
6293 dmu_objset_disown(os, FTAG);
6295 spa->spa_dedup_ditto = 2 * ZIO_DEDUPDITTO_MIN;
6298 * We don't expect the pool to suspend unless maxfaults == 0,
6299 * in which case ztest_fault_inject() temporarily takes away
6300 * the only valid replica.
6302 if (MAXFAULTS() == 0)
6303 spa->spa_failmode = ZIO_FAILURE_MODE_WAIT;
6305 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC;
6308 * Create a thread to periodically resume suspended I/O.
6310 VERIFY3P((resume_thread = zk_thread_create(NULL, 0,
6311 (thread_func_t)ztest_resume_thread, spa, 0, NULL, TS_RUN, 0,
6312 PTHREAD_CREATE_JOINABLE)), !=, NULL);
6316 * Set a deadman alarm to abort() if we hang.
6318 signal(SIGALRM, ztest_deadman_alarm);
6319 alarm((zs->zs_thread_stop - zs->zs_thread_start) / NANOSEC + GRACE);
6323 * Verify that we can safely inquire about about any object,
6324 * whether it's allocated or not. To make it interesting,
6325 * we probe a 5-wide window around each power of two.
6326 * This hits all edge cases, including zero and the max.
6328 for (t = 0; t < 64; t++) {
6329 for (d = -5; d <= 5; d++) {
6330 error = dmu_object_info(spa->spa_meta_objset,
6331 (1ULL << t) + d, NULL);
6332 ASSERT(error == 0 || error == ENOENT ||
6338 * If we got any ENOSPC errors on the previous run, destroy something.
6340 if (zs->zs_enospc_count != 0) {
6341 int d = ztest_random(ztest_opts.zo_datasets);
6342 ztest_dataset_destroy(d);
6344 zs->zs_enospc_count = 0;
6346 tid = umem_zalloc(ztest_opts.zo_threads * sizeof (kt_did_t),
6349 if (ztest_opts.zo_verbose >= 4)
6350 (void) printf("starting main threads...\n");
6353 * Kick off all the tests that run in parallel.
6355 for (t = 0; t < ztest_opts.zo_threads; t++) {
6358 if (t < ztest_opts.zo_datasets &&
6359 ztest_dataset_open(t) != 0) {
6361 ztest_opts.zo_threads * sizeof (kt_did_t));
6365 VERIFY3P(thread = zk_thread_create(NULL, 0,
6366 (thread_func_t)ztest_thread,
6367 (void *)(uintptr_t)t, 0, NULL, TS_RUN, 0,
6368 PTHREAD_CREATE_JOINABLE), !=, NULL);
6369 tid[t] = thread->t_tid;
6373 * Wait for all of the tests to complete. We go in reverse order
6374 * so we don't close datasets while threads are still using them.
6376 for (t = ztest_opts.zo_threads - 1; t >= 0; t--) {
6377 thread_join(tid[t]);
6378 if (t < ztest_opts.zo_datasets)
6379 ztest_dataset_close(t);
6382 txg_wait_synced(spa_get_dsl(spa), 0);
6384 zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
6385 zs->zs_space = metaslab_class_get_space(spa_normal_class(spa));
6387 umem_free(tid, ztest_opts.zo_threads * sizeof (kt_did_t));
6389 /* Kill the resume thread */
6390 ztest_exiting = B_TRUE;
6391 thread_join(resume_thread->t_tid);
6395 * Right before closing the pool, kick off a bunch of async I/O;
6396 * spa_close() should wait for it to complete.
6398 for (object = 1; object < 50; object++) {
6399 dmu_prefetch(spa->spa_meta_objset, object, 0, 0, 1ULL << 20,
6400 ZIO_PRIORITY_SYNC_READ);
6403 /* Verify that at least one commit cb was called in a timely fashion */
6404 if (zc_cb_counter >= ZTEST_COMMIT_CB_MIN_REG)
6405 VERIFY0(zc_min_txg_delay);
6407 spa_close(spa, FTAG);
6410 * Verify that we can loop over all pools.
6412 mutex_enter(&spa_namespace_lock);
6413 for (spa = spa_next(NULL); spa != NULL; spa = spa_next(spa))
6414 if (ztest_opts.zo_verbose > 3)
6415 (void) printf("spa_next: found %s\n", spa_name(spa));
6416 mutex_exit(&spa_namespace_lock);
6419 * Verify that we can export the pool and reimport it under a
6422 if (ztest_random(2) == 0) {
6423 char name[ZFS_MAX_DATASET_NAME_LEN];
6424 (void) snprintf(name, sizeof (name), "%s_import",
6425 ztest_opts.zo_pool);
6426 ztest_spa_import_export(ztest_opts.zo_pool, name);
6427 ztest_spa_import_export(name, ztest_opts.zo_pool);
6432 list_destroy(&zcl.zcl_callbacks);
6433 mutex_destroy(&zcl.zcl_callbacks_lock);
6434 (void) rwlock_destroy(&ztest_name_lock);
6435 mutex_destroy(&ztest_vdev_lock);
6441 ztest_ds_t *zd = &ztest_ds[0];
6445 if (ztest_opts.zo_verbose >= 3)
6446 (void) printf("testing spa_freeze()...\n");
6448 kernel_init(FREAD | FWRITE);
6449 VERIFY3U(0, ==, spa_open(ztest_opts.zo_pool, &spa, FTAG));
6450 VERIFY3U(0, ==, ztest_dataset_open(0));
6451 spa->spa_debug = B_TRUE;
6455 * Force the first log block to be transactionally allocated.
6456 * We have to do this before we freeze the pool -- otherwise
6457 * the log chain won't be anchored.
6459 while (BP_IS_HOLE(&zd->zd_zilog->zl_header->zh_log)) {
6460 ztest_dmu_object_alloc_free(zd, 0);
6461 zil_commit(zd->zd_zilog, 0);
6464 txg_wait_synced(spa_get_dsl(spa), 0);
6467 * Freeze the pool. This stops spa_sync() from doing anything,
6468 * so that the only way to record changes from now on is the ZIL.
6473 * Because it is hard to predict how much space a write will actually
6474 * require beforehand, we leave ourselves some fudge space to write over
6477 uint64_t capacity = metaslab_class_get_space(spa_normal_class(spa)) / 2;
6480 * Run tests that generate log records but don't alter the pool config
6481 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
6482 * We do a txg_wait_synced() after each iteration to force the txg
6483 * to increase well beyond the last synced value in the uberblock.
6484 * The ZIL should be OK with that.
6486 * Run a random number of times less than zo_maxloops and ensure we do
6487 * not run out of space on the pool.
6489 while (ztest_random(10) != 0 &&
6490 numloops++ < ztest_opts.zo_maxloops &&
6491 metaslab_class_get_alloc(spa_normal_class(spa)) < capacity) {
6493 ztest_od_init(&od, 0, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0, 0);
6494 VERIFY0(ztest_object_init(zd, &od, sizeof (od), B_FALSE));
6495 ztest_io(zd, od.od_object,
6496 ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
6497 txg_wait_synced(spa_get_dsl(spa), 0);
6501 * Commit all of the changes we just generated.
6503 zil_commit(zd->zd_zilog, 0);
6504 txg_wait_synced(spa_get_dsl(spa), 0);
6507 * Close our dataset and close the pool.
6509 ztest_dataset_close(0);
6510 spa_close(spa, FTAG);
6514 * Open and close the pool and dataset to induce log replay.
6516 kernel_init(FREAD | FWRITE);
6517 VERIFY3U(0, ==, spa_open(ztest_opts.zo_pool, &spa, FTAG));
6518 ASSERT(spa_freeze_txg(spa) == UINT64_MAX);
6519 VERIFY3U(0, ==, ztest_dataset_open(0));
6520 ztest_dataset_close(0);
6522 spa->spa_debug = B_TRUE;
6524 txg_wait_synced(spa_get_dsl(spa), 0);
6525 ztest_reguid(NULL, 0);
6527 spa_close(spa, FTAG);
6532 print_time(hrtime_t t, char *timebuf)
6534 hrtime_t s = t / NANOSEC;
6535 hrtime_t m = s / 60;
6536 hrtime_t h = m / 60;
6537 hrtime_t d = h / 24;
6546 (void) sprintf(timebuf,
6547 "%llud%02lluh%02llum%02llus", d, h, m, s);
6549 (void) sprintf(timebuf, "%lluh%02llum%02llus", h, m, s);
6551 (void) sprintf(timebuf, "%llum%02llus", m, s);
6553 (void) sprintf(timebuf, "%llus", s);
6557 make_random_props(void)
6561 VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0);
6562 if (ztest_random(2) == 0)
6564 VERIFY(nvlist_add_uint64(props, "autoreplace", 1) == 0);
6570 * Create a storage pool with the given name and initial vdev size.
6571 * Then test spa_freeze() functionality.
6574 ztest_init(ztest_shared_t *zs)
6577 nvlist_t *nvroot, *props;
6580 mutex_init(&ztest_vdev_lock, NULL, MUTEX_DEFAULT, NULL);
6581 VERIFY(rwlock_init(&ztest_name_lock, USYNC_THREAD, NULL) == 0);
6583 kernel_init(FREAD | FWRITE);
6586 * Create the storage pool.
6588 (void) spa_destroy(ztest_opts.zo_pool);
6589 ztest_shared->zs_vdev_next_leaf = 0;
6591 zs->zs_mirrors = ztest_opts.zo_mirrors;
6592 nvroot = make_vdev_root(NULL, NULL, NULL, ztest_opts.zo_vdev_size, 0,
6593 0, ztest_opts.zo_raidz, zs->zs_mirrors, 1);
6594 props = make_random_props();
6595 for (i = 0; i < SPA_FEATURES; i++) {
6597 VERIFY3S(-1, !=, asprintf(&buf, "feature@%s",
6598 spa_feature_table[i].fi_uname));
6599 VERIFY3U(0, ==, nvlist_add_uint64(props, buf, 0));
6602 VERIFY3U(0, ==, spa_create(ztest_opts.zo_pool, nvroot, props, NULL));
6603 nvlist_free(nvroot);
6606 VERIFY3U(0, ==, spa_open(ztest_opts.zo_pool, &spa, FTAG));
6607 zs->zs_metaslab_sz =
6608 1ULL << spa->spa_root_vdev->vdev_child[0]->vdev_ms_shift;
6609 spa_close(spa, FTAG);
6613 ztest_run_zdb(ztest_opts.zo_pool);
6617 ztest_run_zdb(ztest_opts.zo_pool);
6619 (void) rwlock_destroy(&ztest_name_lock);
6620 mutex_destroy(&ztest_vdev_lock);
6626 static char ztest_name_data[] = "/tmp/ztest.data.XXXXXX";
6628 ztest_fd_data = mkstemp(ztest_name_data);
6629 ASSERT3S(ztest_fd_data, >=, 0);
6630 (void) unlink(ztest_name_data);
6634 shared_data_size(ztest_shared_hdr_t *hdr)
6638 size = hdr->zh_hdr_size;
6639 size += hdr->zh_opts_size;
6640 size += hdr->zh_size;
6641 size += hdr->zh_stats_size * hdr->zh_stats_count;
6642 size += hdr->zh_ds_size * hdr->zh_ds_count;
6651 ztest_shared_hdr_t *hdr;
6653 hdr = (void *)mmap(0, P2ROUNDUP(sizeof (*hdr), getpagesize()),
6654 PROT_READ | PROT_WRITE, MAP_SHARED, ztest_fd_data, 0);
6655 ASSERT(hdr != MAP_FAILED);
6657 VERIFY3U(0, ==, ftruncate(ztest_fd_data, sizeof (ztest_shared_hdr_t)));
6659 hdr->zh_hdr_size = sizeof (ztest_shared_hdr_t);
6660 hdr->zh_opts_size = sizeof (ztest_shared_opts_t);
6661 hdr->zh_size = sizeof (ztest_shared_t);
6662 hdr->zh_stats_size = sizeof (ztest_shared_callstate_t);
6663 hdr->zh_stats_count = ZTEST_FUNCS;
6664 hdr->zh_ds_size = sizeof (ztest_shared_ds_t);
6665 hdr->zh_ds_count = ztest_opts.zo_datasets;
6667 size = shared_data_size(hdr);
6668 VERIFY3U(0, ==, ftruncate(ztest_fd_data, size));
6670 (void) munmap((caddr_t)hdr, P2ROUNDUP(sizeof (*hdr), getpagesize()));
6677 ztest_shared_hdr_t *hdr;
6680 hdr = (void *)mmap(0, P2ROUNDUP(sizeof (*hdr), getpagesize()),
6681 PROT_READ, MAP_SHARED, ztest_fd_data, 0);
6682 ASSERT(hdr != MAP_FAILED);
6684 size = shared_data_size(hdr);
6686 (void) munmap((caddr_t)hdr, P2ROUNDUP(sizeof (*hdr), getpagesize()));
6687 hdr = ztest_shared_hdr = (void *)mmap(0, P2ROUNDUP(size, getpagesize()),
6688 PROT_READ | PROT_WRITE, MAP_SHARED, ztest_fd_data, 0);
6689 ASSERT(hdr != MAP_FAILED);
6690 buf = (uint8_t *)hdr;
6692 offset = hdr->zh_hdr_size;
6693 ztest_shared_opts = (void *)&buf[offset];
6694 offset += hdr->zh_opts_size;
6695 ztest_shared = (void *)&buf[offset];
6696 offset += hdr->zh_size;
6697 ztest_shared_callstate = (void *)&buf[offset];
6698 offset += hdr->zh_stats_size * hdr->zh_stats_count;
6699 ztest_shared_ds = (void *)&buf[offset];
6703 exec_child(char *cmd, char *libpath, boolean_t ignorekill, int *statusp)
6707 char *cmdbuf = NULL;
6712 cmdbuf = umem_alloc(MAXPATHLEN, UMEM_NOFAIL);
6713 (void) strlcpy(cmdbuf, getexecname(), MAXPATHLEN);
6718 fatal(1, "fork failed");
6720 if (pid == 0) { /* child */
6721 char *emptyargv[2] = { cmd, NULL };
6722 char fd_data_str[12];
6724 struct rlimit rl = { 1024, 1024 };
6725 (void) setrlimit(RLIMIT_NOFILE, &rl);
6727 (void) close(ztest_fd_rand);
6728 VERIFY(11 >= snprintf(fd_data_str, 12, "%d", ztest_fd_data));
6729 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str, 1));
6731 (void) enable_extended_FILE_stdio(-1, -1);
6732 if (libpath != NULL)
6733 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath, 1));
6734 (void) execv(cmd, emptyargv);
6735 ztest_dump_core = B_FALSE;
6736 fatal(B_TRUE, "exec failed: %s", cmd);
6739 if (cmdbuf != NULL) {
6740 umem_free(cmdbuf, MAXPATHLEN);
6744 while (waitpid(pid, &status, 0) != pid)
6746 if (statusp != NULL)
6749 if (WIFEXITED(status)) {
6750 if (WEXITSTATUS(status) != 0) {
6751 (void) fprintf(stderr, "child exited with code %d\n",
6752 WEXITSTATUS(status));
6756 } else if (WIFSIGNALED(status)) {
6757 if (!ignorekill || WTERMSIG(status) != SIGKILL) {
6758 (void) fprintf(stderr, "child died with signal %d\n",
6764 (void) fprintf(stderr, "something strange happened to child\n");
6771 ztest_run_init(void)
6775 ztest_shared_t *zs = ztest_shared;
6777 ASSERT(ztest_opts.zo_init != 0);
6780 * Blow away any existing copy of zpool.cache
6782 (void) remove(spa_config_path);
6785 * Create and initialize our storage pool.
6787 for (i = 1; i <= ztest_opts.zo_init; i++) {
6788 bzero(zs, sizeof (ztest_shared_t));
6789 if (ztest_opts.zo_verbose >= 3 &&
6790 ztest_opts.zo_init != 1) {
6791 (void) printf("ztest_init(), pass %d\n", i);
6798 main(int argc, char **argv)
6806 ztest_shared_callstate_t *zc;
6813 char *fd_data_str = getenv("ZTEST_FD_DATA");
6814 struct sigaction action;
6816 (void) setvbuf(stdout, NULL, _IOLBF, 0);
6818 dprintf_setup(&argc, argv);
6820 action.sa_handler = sig_handler;
6821 sigemptyset(&action.sa_mask);
6822 action.sa_flags = 0;
6824 if (sigaction(SIGSEGV, &action, NULL) < 0) {
6825 (void) fprintf(stderr, "ztest: cannot catch SIGSEGV: %s.\n",
6830 if (sigaction(SIGABRT, &action, NULL) < 0) {
6831 (void) fprintf(stderr, "ztest: cannot catch SIGABRT: %s.\n",
6836 ztest_fd_rand = open("/dev/urandom", O_RDONLY);
6837 ASSERT3S(ztest_fd_rand, >=, 0);
6840 process_options(argc, argv);
6845 bcopy(&ztest_opts, ztest_shared_opts,
6846 sizeof (*ztest_shared_opts));
6848 ztest_fd_data = atoi(fd_data_str);
6850 bcopy(ztest_shared_opts, &ztest_opts, sizeof (ztest_opts));
6852 ASSERT3U(ztest_opts.zo_datasets, ==, ztest_shared_hdr->zh_ds_count);
6854 /* Override location of zpool.cache */
6855 VERIFY(asprintf((char **)&spa_config_path, "%s/zpool.cache",
6856 ztest_opts.zo_dir) != -1);
6858 ztest_ds = umem_alloc(ztest_opts.zo_datasets * sizeof (ztest_ds_t),
6863 metaslab_gang_bang = ztest_opts.zo_metaslab_gang_bang;
6864 metaslab_df_alloc_threshold =
6865 zs->zs_metaslab_df_alloc_threshold;
6874 hasalt = (strlen(ztest_opts.zo_alt_ztest) != 0);
6876 if (ztest_opts.zo_verbose >= 1) {
6877 (void) printf("%llu vdevs, %d datasets, %d threads,"
6878 " %llu seconds...\n",
6879 (u_longlong_t)ztest_opts.zo_vdevs,
6880 ztest_opts.zo_datasets,
6881 ztest_opts.zo_threads,
6882 (u_longlong_t)ztest_opts.zo_time);
6885 cmd = umem_alloc(MAXNAMELEN, UMEM_NOFAIL);
6886 (void) strlcpy(cmd, getexecname(), MAXNAMELEN);
6888 zs->zs_do_init = B_TRUE;
6889 if (strlen(ztest_opts.zo_alt_ztest) != 0) {
6890 if (ztest_opts.zo_verbose >= 1) {
6891 (void) printf("Executing older ztest for "
6892 "initialization: %s\n", ztest_opts.zo_alt_ztest);
6894 VERIFY(!exec_child(ztest_opts.zo_alt_ztest,
6895 ztest_opts.zo_alt_libpath, B_FALSE, NULL));
6897 VERIFY(!exec_child(NULL, NULL, B_FALSE, NULL));
6899 zs->zs_do_init = B_FALSE;
6901 zs->zs_proc_start = gethrtime();
6902 zs->zs_proc_stop = zs->zs_proc_start + ztest_opts.zo_time * NANOSEC;
6904 for (f = 0; f < ZTEST_FUNCS; f++) {
6905 zi = &ztest_info[f];
6906 zc = ZTEST_GET_SHARED_CALLSTATE(f);
6907 if (zs->zs_proc_start + zi->zi_interval[0] > zs->zs_proc_stop)
6908 zc->zc_next = UINT64_MAX;
6910 zc->zc_next = zs->zs_proc_start +
6911 ztest_random(2 * zi->zi_interval[0] + 1);
6915 * Run the tests in a loop. These tests include fault injection
6916 * to verify that self-healing data works, and forced crashes
6917 * to verify that we never lose on-disk consistency.
6919 while (gethrtime() < zs->zs_proc_stop) {
6924 * Initialize the workload counters for each function.
6926 for (f = 0; f < ZTEST_FUNCS; f++) {
6927 zc = ZTEST_GET_SHARED_CALLSTATE(f);
6932 /* Set the allocation switch size */
6933 zs->zs_metaslab_df_alloc_threshold =
6934 ztest_random(zs->zs_metaslab_sz / 4) + 1;
6936 if (!hasalt || ztest_random(2) == 0) {
6937 if (hasalt && ztest_opts.zo_verbose >= 1) {
6938 (void) printf("Executing newer ztest: %s\n",
6942 killed = exec_child(cmd, NULL, B_TRUE, &status);
6944 if (hasalt && ztest_opts.zo_verbose >= 1) {
6945 (void) printf("Executing older ztest: %s\n",
6946 ztest_opts.zo_alt_ztest);
6949 killed = exec_child(ztest_opts.zo_alt_ztest,
6950 ztest_opts.zo_alt_libpath, B_TRUE, &status);
6957 if (ztest_opts.zo_verbose >= 1) {
6958 hrtime_t now = gethrtime();
6960 now = MIN(now, zs->zs_proc_stop);
6961 print_time(zs->zs_proc_stop - now, timebuf);
6962 nicenum(zs->zs_space, numbuf);
6964 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6965 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6967 WIFEXITED(status) ? "Complete" : "SIGKILL",
6968 (u_longlong_t)zs->zs_enospc_count,
6969 100.0 * zs->zs_alloc / zs->zs_space,
6971 100.0 * (now - zs->zs_proc_start) /
6972 (ztest_opts.zo_time * NANOSEC), timebuf);
6975 if (ztest_opts.zo_verbose >= 2) {
6976 (void) printf("\nWorkload summary:\n\n");
6977 (void) printf("%7s %9s %s\n",
6978 "Calls", "Time", "Function");
6979 (void) printf("%7s %9s %s\n",
6980 "-----", "----", "--------");
6981 for (f = 0; f < ZTEST_FUNCS; f++) {
6982 zi = &ztest_info[f];
6983 zc = ZTEST_GET_SHARED_CALLSTATE(f);
6984 print_time(zc->zc_time, timebuf);
6985 (void) printf("%7llu %9s %s\n",
6986 (u_longlong_t)zc->zc_count, timebuf,
6989 (void) printf("\n");
6993 * It's possible that we killed a child during a rename test,
6994 * in which case we'll have a 'ztest_tmp' pool lying around
6995 * instead of 'ztest'. Do a blind rename in case this happened.
6998 if (spa_open(ztest_opts.zo_pool, &spa, FTAG) == 0) {
6999 spa_close(spa, FTAG);
7001 char tmpname[ZFS_MAX_DATASET_NAME_LEN];
7003 kernel_init(FREAD | FWRITE);
7004 (void) snprintf(tmpname, sizeof (tmpname), "%s_tmp",
7005 ztest_opts.zo_pool);
7006 (void) spa_rename(tmpname, ztest_opts.zo_pool);
7010 ztest_run_zdb(ztest_opts.zo_pool);
7013 if (ztest_opts.zo_verbose >= 1) {
7015 (void) printf("%d runs of older ztest: %s\n", older,
7016 ztest_opts.zo_alt_ztest);
7017 (void) printf("%d runs of newer ztest: %s\n", newer,
7020 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
7021 kills, iters - kills, (100.0 * kills) / MAX(1, iters));
7024 umem_free(cmd, MAXNAMELEN);