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.
26 * Copyright (c) 2014 Integros [integros.com]
27 * Copyright 2017 Joyent, Inc.
31 * The objective of this program is to provide a DMU/ZAP/SPA stress test
32 * that runs entirely in userland, is easy to use, and easy to extend.
34 * The overall design of the ztest program is as follows:
36 * (1) For each major functional area (e.g. adding vdevs to a pool,
37 * creating and destroying datasets, reading and writing objects, etc)
38 * we have a simple routine to test that functionality. These
39 * individual routines do not have to do anything "stressful".
41 * (2) We turn these simple functionality tests into a stress test by
42 * running them all in parallel, with as many threads as desired,
43 * and spread across as many datasets, objects, and vdevs as desired.
45 * (3) While all this is happening, we inject faults into the pool to
46 * verify that self-healing data really works.
48 * (4) Every time we open a dataset, we change its checksum and compression
49 * functions. Thus even individual objects vary from block to block
50 * in which checksum they use and whether they're compressed.
52 * (5) To verify that we never lose on-disk consistency after a crash,
53 * we run the entire test in a child of the main process.
54 * At random times, the child self-immolates with a SIGKILL.
55 * This is the software equivalent of pulling the power cord.
56 * The parent then runs the test again, using the existing
57 * storage pool, as many times as desired. If backwards compatibility
58 * testing is enabled ztest will sometimes run the "older" version
59 * of ztest after a SIGKILL.
61 * (6) To verify that we don't have future leaks or temporal incursions,
62 * many of the functional tests record the transaction group number
63 * as part of their data. When reading old data, they verify that
64 * the transaction group number is less than the current, open txg.
65 * If you add a new test, please do this if applicable.
67 * When run with no arguments, ztest runs for about five minutes and
68 * produces no output if successful. To get a little bit of information,
69 * specify -V. To get more information, specify -VV, and so on.
71 * To turn this into an overnight stress test, use -T to specify run time.
73 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
74 * to increase the pool capacity, fanout, and overall stress level.
76 * Use the -k option to set the desired frequency of kills.
78 * When ztest invokes itself it passes all relevant information through a
79 * temporary file which is mmap-ed in the child process. This allows shared
80 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
81 * stored at offset 0 of this file and contains information on the size and
82 * number of shared structures in the file. The information stored in this file
83 * must remain backwards compatible with older versions of ztest so that
84 * ztest can invoke them during backwards compatibility testing (-B).
87 #include <sys/zfs_context.h>
93 #include <sys/dmu_objset.h>
99 #include <sys/resource.h>
102 #include <sys/zil_impl.h>
103 #include <sys/vdev_impl.h>
104 #include <sys/vdev_file.h>
105 #include <sys/spa_impl.h>
106 #include <sys/metaslab_impl.h>
107 #include <sys/dsl_prop.h>
108 #include <sys/dsl_dataset.h>
109 #include <sys/dsl_destroy.h>
110 #include <sys/dsl_scan.h>
111 #include <sys/zio_checksum.h>
112 #include <sys/refcount.h>
113 #include <sys/zfeature.h>
114 #include <sys/dsl_userhold.h>
117 #include <stdio_ext.h>
125 #include <sys/fs/zfs.h>
126 #include <libnvpair.h>
127 #include <libcmdutils.h>
129 static int ztest_fd_data
= -1;
130 static int ztest_fd_rand
= -1;
132 typedef struct ztest_shared_hdr
{
133 uint64_t zh_hdr_size
;
134 uint64_t zh_opts_size
;
136 uint64_t zh_stats_size
;
137 uint64_t zh_stats_count
;
139 uint64_t zh_ds_count
;
140 } ztest_shared_hdr_t
;
142 static ztest_shared_hdr_t
*ztest_shared_hdr
;
144 typedef struct ztest_shared_opts
{
145 char zo_pool
[ZFS_MAX_DATASET_NAME_LEN
];
146 char zo_dir
[ZFS_MAX_DATASET_NAME_LEN
];
147 char zo_alt_ztest
[MAXNAMELEN
];
148 char zo_alt_libpath
[MAXNAMELEN
];
150 uint64_t zo_vdevtime
;
158 uint64_t zo_passtime
;
159 uint64_t zo_killrate
;
163 uint64_t zo_maxloops
;
164 uint64_t zo_metaslab_gang_bang
;
165 } ztest_shared_opts_t
;
167 static const ztest_shared_opts_t ztest_opts_defaults
= {
168 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
169 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
170 .zo_alt_ztest
= { '\0' },
171 .zo_alt_libpath
= { '\0' },
173 .zo_ashift
= SPA_MINBLOCKSHIFT
,
176 .zo_raidz_parity
= 1,
177 .zo_vdev_size
= SPA_MINDEVSIZE
* 4, /* 256m default size */
180 .zo_passtime
= 60, /* 60 seconds */
181 .zo_killrate
= 70, /* 70% kill rate */
184 .zo_time
= 300, /* 5 minutes */
185 .zo_maxloops
= 50, /* max loops during spa_freeze() */
186 .zo_metaslab_gang_bang
= 32 << 10
189 extern uint64_t metaslab_gang_bang
;
190 extern uint64_t metaslab_df_alloc_threshold
;
191 extern uint64_t zfs_deadman_synctime_ms
;
192 extern int metaslab_preload_limit
;
193 extern boolean_t zfs_compressed_arc_enabled
;
194 extern boolean_t zfs_abd_scatter_enabled
;
196 static ztest_shared_opts_t
*ztest_shared_opts
;
197 static ztest_shared_opts_t ztest_opts
;
199 typedef struct ztest_shared_ds
{
203 static ztest_shared_ds_t
*ztest_shared_ds
;
204 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
206 #define BT_MAGIC 0x123456789abcdefULL
207 #define MAXFAULTS() \
208 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
212 ZTEST_IO_WRITE_PATTERN
,
213 ZTEST_IO_WRITE_ZEROES
,
220 typedef struct ztest_block_tag
{
230 typedef struct bufwad
{
237 * XXX -- fix zfs range locks to be generic so we can use them here.
259 #define ZTEST_RANGE_LOCKS 64
260 #define ZTEST_OBJECT_LOCKS 64
263 * Object descriptor. Used as a template for object lookup/create/remove.
265 typedef struct ztest_od
{
268 dmu_object_type_t od_type
;
269 dmu_object_type_t od_crtype
;
270 uint64_t od_blocksize
;
271 uint64_t od_crblocksize
;
274 char od_name
[ZFS_MAX_DATASET_NAME_LEN
];
280 typedef struct ztest_ds
{
281 ztest_shared_ds_t
*zd_shared
;
283 rwlock_t zd_zilog_lock
;
285 ztest_od_t
*zd_od
; /* debugging aid */
286 char zd_name
[ZFS_MAX_DATASET_NAME_LEN
];
287 mutex_t zd_dirobj_lock
;
288 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
289 rll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
293 * Per-iteration state.
295 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
297 typedef struct ztest_info
{
298 ztest_func_t
*zi_func
; /* test function */
299 uint64_t zi_iters
; /* iterations per execution */
300 uint64_t *zi_interval
; /* execute every <interval> seconds */
303 typedef struct ztest_shared_callstate
{
304 uint64_t zc_count
; /* per-pass count */
305 uint64_t zc_time
; /* per-pass time */
306 uint64_t zc_next
; /* next time to call this function */
307 } ztest_shared_callstate_t
;
309 static ztest_shared_callstate_t
*ztest_shared_callstate
;
310 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
313 * Note: these aren't static because we want dladdr() to work.
315 ztest_func_t ztest_dmu_read_write
;
316 ztest_func_t ztest_dmu_write_parallel
;
317 ztest_func_t ztest_dmu_object_alloc_free
;
318 ztest_func_t ztest_dmu_commit_callbacks
;
319 ztest_func_t ztest_zap
;
320 ztest_func_t ztest_zap_parallel
;
321 ztest_func_t ztest_zil_commit
;
322 ztest_func_t ztest_zil_remount
;
323 ztest_func_t ztest_dmu_read_write_zcopy
;
324 ztest_func_t ztest_dmu_objset_create_destroy
;
325 ztest_func_t ztest_dmu_prealloc
;
326 ztest_func_t ztest_fzap
;
327 ztest_func_t ztest_dmu_snapshot_create_destroy
;
328 ztest_func_t ztest_dsl_prop_get_set
;
329 ztest_func_t ztest_spa_prop_get_set
;
330 ztest_func_t ztest_spa_create_destroy
;
331 ztest_func_t ztest_fault_inject
;
332 ztest_func_t ztest_ddt_repair
;
333 ztest_func_t ztest_dmu_snapshot_hold
;
334 ztest_func_t ztest_spa_rename
;
335 ztest_func_t ztest_scrub
;
336 ztest_func_t ztest_dsl_dataset_promote_busy
;
337 ztest_func_t ztest_vdev_attach_detach
;
338 ztest_func_t ztest_vdev_LUN_growth
;
339 ztest_func_t ztest_vdev_add_remove
;
340 ztest_func_t ztest_vdev_aux_add_remove
;
341 ztest_func_t ztest_split_pool
;
342 ztest_func_t ztest_reguid
;
343 ztest_func_t ztest_spa_upgrade
;
345 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
346 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
347 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
348 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
349 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
351 ztest_info_t ztest_info
[] = {
352 { ztest_dmu_read_write
, 1, &zopt_always
},
353 { ztest_dmu_write_parallel
, 10, &zopt_always
},
354 { ztest_dmu_object_alloc_free
, 1, &zopt_always
},
355 { ztest_dmu_commit_callbacks
, 1, &zopt_always
},
356 { ztest_zap
, 30, &zopt_always
},
357 { ztest_zap_parallel
, 100, &zopt_always
},
358 { ztest_split_pool
, 1, &zopt_always
},
359 { ztest_zil_commit
, 1, &zopt_incessant
},
360 { ztest_zil_remount
, 1, &zopt_sometimes
},
361 { ztest_dmu_read_write_zcopy
, 1, &zopt_often
},
362 { ztest_dmu_objset_create_destroy
, 1, &zopt_often
},
363 { ztest_dsl_prop_get_set
, 1, &zopt_often
},
364 { ztest_spa_prop_get_set
, 1, &zopt_sometimes
},
366 { ztest_dmu_prealloc
, 1, &zopt_sometimes
},
368 { ztest_fzap
, 1, &zopt_sometimes
},
369 { ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
},
370 { ztest_spa_create_destroy
, 1, &zopt_sometimes
},
371 { ztest_fault_inject
, 1, &zopt_sometimes
},
372 { ztest_ddt_repair
, 1, &zopt_sometimes
},
373 { ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
},
374 { ztest_reguid
, 1, &zopt_rarely
},
375 { ztest_spa_rename
, 1, &zopt_rarely
},
376 { ztest_scrub
, 1, &zopt_rarely
},
377 { ztest_spa_upgrade
, 1, &zopt_rarely
},
378 { ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
},
379 { ztest_vdev_attach_detach
, 1, &zopt_sometimes
},
380 { ztest_vdev_LUN_growth
, 1, &zopt_rarely
},
381 { ztest_vdev_add_remove
, 1,
382 &ztest_opts
.zo_vdevtime
},
383 { ztest_vdev_aux_add_remove
, 1,
384 &ztest_opts
.zo_vdevtime
},
387 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
390 * The following struct is used to hold a list of uncalled commit callbacks.
391 * The callbacks are ordered by txg number.
393 typedef struct ztest_cb_list
{
394 mutex_t zcl_callbacks_lock
;
395 list_t zcl_callbacks
;
399 * Stuff we need to share writably between parent and child.
401 typedef struct ztest_shared
{
402 boolean_t zs_do_init
;
403 hrtime_t zs_proc_start
;
404 hrtime_t zs_proc_stop
;
405 hrtime_t zs_thread_start
;
406 hrtime_t zs_thread_stop
;
407 hrtime_t zs_thread_kill
;
408 uint64_t zs_enospc_count
;
409 uint64_t zs_vdev_next_leaf
;
410 uint64_t zs_vdev_aux
;
415 uint64_t zs_metaslab_sz
;
416 uint64_t zs_metaslab_df_alloc_threshold
;
420 #define ID_PARALLEL -1ULL
422 static char ztest_dev_template
[] = "%s/%s.%llua";
423 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
424 ztest_shared_t
*ztest_shared
;
426 static spa_t
*ztest_spa
= NULL
;
427 static ztest_ds_t
*ztest_ds
;
429 static mutex_t ztest_vdev_lock
;
432 * The ztest_name_lock protects the pool and dataset namespace used by
433 * the individual tests. To modify the namespace, consumers must grab
434 * this lock as writer. Grabbing the lock as reader will ensure that the
435 * namespace does not change while the lock is held.
437 static rwlock_t ztest_name_lock
;
439 static boolean_t ztest_dump_core
= B_TRUE
;
440 static boolean_t ztest_exiting
;
442 /* Global commit callback list */
443 static ztest_cb_list_t zcl
;
446 ZTEST_META_DNODE
= 0,
451 static void usage(boolean_t
) __NORETURN
;
454 * These libumem hooks provide a reasonable set of defaults for the allocator's
455 * debugging facilities.
460 return ("default,verbose"); /* $UMEM_DEBUG setting */
464 _umem_logging_init(void)
466 return ("fail,contents"); /* $UMEM_LOGGING setting */
469 #define FATAL_MSG_SZ 1024
474 fatal(int do_perror
, char *message
, ...)
477 int save_errno
= errno
;
478 char buf
[FATAL_MSG_SZ
];
480 (void) fflush(stdout
);
482 va_start(args
, message
);
483 (void) sprintf(buf
, "ztest: ");
485 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
488 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
489 ": %s", strerror(save_errno
));
491 (void) fprintf(stderr
, "%s\n", buf
);
492 fatal_msg
= buf
; /* to ease debugging */
499 str2shift(const char *buf
)
501 const char *ends
= "BKMGTPEZ";
506 for (i
= 0; i
< strlen(ends
); i
++) {
507 if (toupper(buf
[0]) == ends
[i
])
510 if (i
== strlen(ends
)) {
511 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
515 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
518 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
524 nicenumtoull(const char *buf
)
529 val
= strtoull(buf
, &end
, 0);
531 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
533 } else if (end
[0] == '.') {
534 double fval
= strtod(buf
, &end
);
535 fval
*= pow(2, str2shift(end
));
536 if (fval
> UINT64_MAX
) {
537 (void) fprintf(stderr
, "ztest: value too large: %s\n",
541 val
= (uint64_t)fval
;
543 int shift
= str2shift(end
);
544 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
545 (void) fprintf(stderr
, "ztest: value too large: %s\n",
555 usage(boolean_t requested
)
557 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
559 char nice_vdev_size
[NN_NUMBUF_SZ
];
560 char nice_gang_bang
[NN_NUMBUF_SZ
];
561 FILE *fp
= requested
? stdout
: stderr
;
563 nicenum(zo
->zo_vdev_size
, nice_vdev_size
, sizeof (nice_vdev_size
));
564 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
,
565 sizeof (nice_gang_bang
));
567 (void) fprintf(fp
, "Usage: %s\n"
568 "\t[-v vdevs (default: %llu)]\n"
569 "\t[-s size_of_each_vdev (default: %s)]\n"
570 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
571 "\t[-m mirror_copies (default: %d)]\n"
572 "\t[-r raidz_disks (default: %d)]\n"
573 "\t[-R raidz_parity (default: %d)]\n"
574 "\t[-d datasets (default: %d)]\n"
575 "\t[-t threads (default: %d)]\n"
576 "\t[-g gang_block_threshold (default: %s)]\n"
577 "\t[-i init_count (default: %d)] initialize pool i times\n"
578 "\t[-k kill_percentage (default: %llu%%)]\n"
579 "\t[-p pool_name (default: %s)]\n"
580 "\t[-f dir (default: %s)] file directory for vdev files\n"
581 "\t[-V] verbose (use multiple times for ever more blather)\n"
582 "\t[-E] use existing pool instead of creating new one\n"
583 "\t[-T time (default: %llu sec)] total run time\n"
584 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
585 "\t[-P passtime (default: %llu sec)] time per pass\n"
586 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
587 "\t[-o variable=value] ... set global variable to an unsigned\n"
588 "\t 32-bit integer value\n"
589 "\t[-h] (print help)\n"
592 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
593 nice_vdev_size
, /* -s */
594 zo
->zo_ashift
, /* -a */
595 zo
->zo_mirrors
, /* -m */
596 zo
->zo_raidz
, /* -r */
597 zo
->zo_raidz_parity
, /* -R */
598 zo
->zo_datasets
, /* -d */
599 zo
->zo_threads
, /* -t */
600 nice_gang_bang
, /* -g */
601 zo
->zo_init
, /* -i */
602 (u_longlong_t
)zo
->zo_killrate
, /* -k */
603 zo
->zo_pool
, /* -p */
605 (u_longlong_t
)zo
->zo_time
, /* -T */
606 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
607 (u_longlong_t
)zo
->zo_passtime
);
608 exit(requested
? 0 : 1);
612 process_options(int argc
, char **argv
)
615 ztest_shared_opts_t
*zo
= &ztest_opts
;
619 char altdir
[MAXNAMELEN
] = { 0 };
621 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
623 while ((opt
= getopt(argc
, argv
,
624 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:o:")) != EOF
) {
641 value
= nicenumtoull(optarg
);
645 zo
->zo_vdevs
= value
;
648 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
651 zo
->zo_ashift
= value
;
654 zo
->zo_mirrors
= value
;
657 zo
->zo_raidz
= MAX(1, value
);
660 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
663 zo
->zo_datasets
= MAX(1, value
);
666 zo
->zo_threads
= MAX(1, value
);
669 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
676 zo
->zo_killrate
= value
;
679 (void) strlcpy(zo
->zo_pool
, optarg
,
680 sizeof (zo
->zo_pool
));
683 path
= realpath(optarg
, NULL
);
685 (void) fprintf(stderr
, "error: %s: %s\n",
686 optarg
, strerror(errno
));
689 (void) strlcpy(zo
->zo_dir
, path
,
690 sizeof (zo
->zo_dir
));
703 zo
->zo_passtime
= MAX(1, value
);
706 zo
->zo_maxloops
= MAX(1, value
);
709 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
712 if (set_global_var(optarg
) != 0)
725 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
728 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
731 if (strlen(altdir
) > 0) {
739 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
740 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
742 VERIFY(NULL
!= realpath(getexecname(), cmd
));
743 if (0 != access(altdir
, F_OK
)) {
744 ztest_dump_core
= B_FALSE
;
745 fatal(B_TRUE
, "invalid alternate ztest path: %s",
748 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
751 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
752 * We want to extract <isa> to determine if we should use
753 * 32 or 64 bit binaries.
755 bin
= strstr(cmd
, "/usr/bin/");
756 ztest
= strstr(bin
, "/ztest");
758 isalen
= ztest
- isa
;
759 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
760 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
761 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
762 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
764 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
765 ztest_dump_core
= B_FALSE
;
766 fatal(B_TRUE
, "invalid alternate ztest: %s",
768 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
769 ztest_dump_core
= B_FALSE
;
770 fatal(B_TRUE
, "invalid alternate lib directory %s",
774 umem_free(cmd
, MAXPATHLEN
);
775 umem_free(realaltdir
, MAXPATHLEN
);
780 ztest_kill(ztest_shared_t
*zs
)
782 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
783 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
786 * Before we kill off ztest, make sure that the config is updated.
787 * See comment above spa_config_sync().
789 mutex_enter(&spa_namespace_lock
);
790 spa_config_sync(ztest_spa
, B_FALSE
, B_FALSE
);
791 mutex_exit(&spa_namespace_lock
);
793 zfs_dbgmsg_print(FTAG
);
794 (void) kill(getpid(), SIGKILL
);
798 ztest_random(uint64_t range
)
802 ASSERT3S(ztest_fd_rand
, >=, 0);
807 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
808 fatal(1, "short read from /dev/urandom");
815 ztest_record_enospc(const char *s
)
817 ztest_shared
->zs_enospc_count
++;
821 ztest_get_ashift(void)
823 if (ztest_opts
.zo_ashift
== 0)
824 return (SPA_MINBLOCKSHIFT
+ ztest_random(5));
825 return (ztest_opts
.zo_ashift
);
829 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
831 char pathbuf
[MAXPATHLEN
];
836 ashift
= ztest_get_ashift();
842 vdev
= ztest_shared
->zs_vdev_aux
;
843 (void) snprintf(path
, sizeof (pathbuf
),
844 ztest_aux_template
, ztest_opts
.zo_dir
,
845 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
848 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
849 (void) snprintf(path
, sizeof (pathbuf
),
850 ztest_dev_template
, ztest_opts
.zo_dir
,
851 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
856 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
858 fatal(1, "can't open %s", path
);
859 if (ftruncate(fd
, size
) != 0)
860 fatal(1, "can't ftruncate %s", path
);
864 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
865 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
866 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
867 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
873 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
874 uint64_t ashift
, int r
)
876 nvlist_t
*raidz
, **child
;
880 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
881 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
883 for (c
= 0; c
< r
; c
++)
884 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
886 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
887 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
888 VDEV_TYPE_RAIDZ
) == 0);
889 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
890 ztest_opts
.zo_raidz_parity
) == 0);
891 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
894 for (c
= 0; c
< r
; c
++)
895 nvlist_free(child
[c
]);
897 umem_free(child
, r
* sizeof (nvlist_t
*));
903 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
904 uint64_t ashift
, int r
, int m
)
906 nvlist_t
*mirror
, **child
;
910 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
912 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
914 for (c
= 0; c
< m
; c
++)
915 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
917 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
918 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
919 VDEV_TYPE_MIRROR
) == 0);
920 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
923 for (c
= 0; c
< m
; c
++)
924 nvlist_free(child
[c
]);
926 umem_free(child
, m
* sizeof (nvlist_t
*));
932 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
933 int log
, int r
, int m
, int t
)
935 nvlist_t
*root
, **child
;
940 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
942 for (c
= 0; c
< t
; c
++) {
943 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
945 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
949 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
950 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
951 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
954 for (c
= 0; c
< t
; c
++)
955 nvlist_free(child
[c
]);
957 umem_free(child
, t
* sizeof (nvlist_t
*));
963 * Find a random spa version. Returns back a random spa version in the
964 * range [initial_version, SPA_VERSION_FEATURES].
967 ztest_random_spa_version(uint64_t initial_version
)
969 uint64_t version
= initial_version
;
971 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
973 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
976 if (version
> SPA_VERSION_BEFORE_FEATURES
)
977 version
= SPA_VERSION_FEATURES
;
979 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
984 ztest_random_blocksize(void)
986 uint64_t block_shift
;
988 * Choose a block size >= the ashift.
989 * If the SPA supports new MAXBLOCKSIZE, test up to 1MB blocks.
991 int maxbs
= SPA_OLD_MAXBLOCKSHIFT
;
992 if (spa_maxblocksize(ztest_spa
) == SPA_MAXBLOCKSIZE
)
994 block_shift
= ztest_random(maxbs
- ztest_spa
->spa_max_ashift
+ 1);
995 return (1 << (SPA_MINBLOCKSHIFT
+ block_shift
));
999 ztest_random_ibshift(void)
1001 return (DN_MIN_INDBLKSHIFT
+
1002 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
1006 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
1009 vdev_t
*rvd
= spa
->spa_root_vdev
;
1012 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
1015 top
= ztest_random(rvd
->vdev_children
);
1016 tvd
= rvd
->vdev_child
[top
];
1017 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
1018 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
1024 ztest_random_dsl_prop(zfs_prop_t prop
)
1029 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
1030 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1036 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1039 const char *propname
= zfs_prop_to_name(prop
);
1040 const char *valname
;
1041 char setpoint
[MAXPATHLEN
];
1045 error
= dsl_prop_set_int(osname
, propname
,
1046 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1048 if (error
== ENOSPC
) {
1049 ztest_record_enospc(FTAG
);
1054 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1056 if (ztest_opts
.zo_verbose
>= 6) {
1057 VERIFY(zfs_prop_index_to_string(prop
, curval
, &valname
) == 0);
1058 (void) printf("%s %s = %s at '%s'\n",
1059 osname
, propname
, valname
, setpoint
);
1066 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1068 spa_t
*spa
= ztest_spa
;
1069 nvlist_t
*props
= NULL
;
1072 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1073 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1075 error
= spa_prop_set(spa
, props
);
1079 if (error
== ENOSPC
) {
1080 ztest_record_enospc(FTAG
);
1089 ztest_rll_init(rll_t
*rll
)
1091 rll
->rll_writer
= NULL
;
1092 rll
->rll_readers
= 0;
1093 VERIFY(_mutex_init(&rll
->rll_lock
, USYNC_THREAD
, NULL
) == 0);
1094 VERIFY(cond_init(&rll
->rll_cv
, USYNC_THREAD
, NULL
) == 0);
1098 ztest_rll_destroy(rll_t
*rll
)
1100 ASSERT(rll
->rll_writer
== NULL
);
1101 ASSERT(rll
->rll_readers
== 0);
1102 VERIFY(_mutex_destroy(&rll
->rll_lock
) == 0);
1103 VERIFY(cond_destroy(&rll
->rll_cv
) == 0);
1107 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1109 VERIFY(mutex_lock(&rll
->rll_lock
) == 0);
1111 if (type
== RL_READER
) {
1112 while (rll
->rll_writer
!= NULL
)
1113 (void) cond_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1116 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1117 (void) cond_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1118 rll
->rll_writer
= curthread
;
1121 VERIFY(mutex_unlock(&rll
->rll_lock
) == 0);
1125 ztest_rll_unlock(rll_t
*rll
)
1127 VERIFY(mutex_lock(&rll
->rll_lock
) == 0);
1129 if (rll
->rll_writer
) {
1130 ASSERT(rll
->rll_readers
== 0);
1131 rll
->rll_writer
= NULL
;
1133 ASSERT(rll
->rll_readers
!= 0);
1134 ASSERT(rll
->rll_writer
== NULL
);
1138 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1139 VERIFY(cond_broadcast(&rll
->rll_cv
) == 0);
1141 VERIFY(mutex_unlock(&rll
->rll_lock
) == 0);
1145 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1147 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1149 ztest_rll_lock(rll
, type
);
1153 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1155 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1157 ztest_rll_unlock(rll
);
1161 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1162 uint64_t size
, rl_type_t type
)
1164 uint64_t hash
= object
^ (offset
% (ZTEST_RANGE_LOCKS
+ 1));
1165 rll_t
*rll
= &zd
->zd_range_lock
[hash
& (ZTEST_RANGE_LOCKS
- 1)];
1168 rl
= umem_alloc(sizeof (*rl
), UMEM_NOFAIL
);
1169 rl
->rl_object
= object
;
1170 rl
->rl_offset
= offset
;
1174 ztest_rll_lock(rll
, type
);
1180 ztest_range_unlock(rl_t
*rl
)
1182 rll_t
*rll
= rl
->rl_lock
;
1184 ztest_rll_unlock(rll
);
1186 umem_free(rl
, sizeof (*rl
));
1190 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1193 zd
->zd_zilog
= dmu_objset_zil(os
);
1194 zd
->zd_shared
= szd
;
1195 dmu_objset_name(os
, zd
->zd_name
);
1197 if (zd
->zd_shared
!= NULL
)
1198 zd
->zd_shared
->zd_seq
= 0;
1200 VERIFY(rwlock_init(&zd
->zd_zilog_lock
, USYNC_THREAD
, NULL
) == 0);
1201 VERIFY(_mutex_init(&zd
->zd_dirobj_lock
, USYNC_THREAD
, NULL
) == 0);
1203 for (int l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1204 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1206 for (int l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1207 ztest_rll_init(&zd
->zd_range_lock
[l
]);
1211 ztest_zd_fini(ztest_ds_t
*zd
)
1213 VERIFY(_mutex_destroy(&zd
->zd_dirobj_lock
) == 0);
1215 for (int l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1216 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1218 for (int l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1219 ztest_rll_destroy(&zd
->zd_range_lock
[l
]);
1222 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1225 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1231 * Attempt to assign tx to some transaction group.
1233 error
= dmu_tx_assign(tx
, txg_how
);
1235 if (error
== ERESTART
) {
1236 ASSERT(txg_how
== TXG_NOWAIT
);
1239 ASSERT3U(error
, ==, ENOSPC
);
1240 ztest_record_enospc(tag
);
1245 txg
= dmu_tx_get_txg(tx
);
1251 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1254 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1261 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1264 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1268 diff
|= (value
- *ip
++);
1274 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1275 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1277 bt
->bt_magic
= BT_MAGIC
;
1278 bt
->bt_objset
= dmu_objset_id(os
);
1279 bt
->bt_object
= object
;
1280 bt
->bt_offset
= offset
;
1283 bt
->bt_crtxg
= crtxg
;
1287 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1288 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1290 ASSERT3U(bt
->bt_magic
, ==, BT_MAGIC
);
1291 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
1292 ASSERT3U(bt
->bt_object
, ==, object
);
1293 ASSERT3U(bt
->bt_offset
, ==, offset
);
1294 ASSERT3U(bt
->bt_gen
, <=, gen
);
1295 ASSERT3U(bt
->bt_txg
, <=, txg
);
1296 ASSERT3U(bt
->bt_crtxg
, ==, crtxg
);
1299 static ztest_block_tag_t
*
1300 ztest_bt_bonus(dmu_buf_t
*db
)
1302 dmu_object_info_t doi
;
1303 ztest_block_tag_t
*bt
;
1305 dmu_object_info_from_db(db
, &doi
);
1306 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1307 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1308 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1317 #define lrz_type lr_mode
1318 #define lrz_blocksize lr_uid
1319 #define lrz_ibshift lr_gid
1320 #define lrz_bonustype lr_rdev
1321 #define lrz_bonuslen lr_crtime[1]
1324 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1326 char *name
= (void *)(lr
+ 1); /* name follows lr */
1327 size_t namesize
= strlen(name
) + 1;
1330 if (zil_replaying(zd
->zd_zilog
, tx
))
1333 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1334 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1335 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1337 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1341 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1343 char *name
= (void *)(lr
+ 1); /* name follows lr */
1344 size_t namesize
= strlen(name
) + 1;
1347 if (zil_replaying(zd
->zd_zilog
, tx
))
1350 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1351 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1352 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1354 itx
->itx_oid
= object
;
1355 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1359 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1362 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1364 if (zil_replaying(zd
->zd_zilog
, tx
))
1367 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1368 write_state
= WR_INDIRECT
;
1370 itx
= zil_itx_create(TX_WRITE
,
1371 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1373 if (write_state
== WR_COPIED
&&
1374 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1375 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1376 zil_itx_destroy(itx
);
1377 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1378 write_state
= WR_NEED_COPY
;
1380 itx
->itx_private
= zd
;
1381 itx
->itx_wr_state
= write_state
;
1382 itx
->itx_sync
= (ztest_random(8) == 0);
1384 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1385 sizeof (*lr
) - sizeof (lr_t
));
1387 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1391 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1395 if (zil_replaying(zd
->zd_zilog
, tx
))
1398 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1399 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1400 sizeof (*lr
) - sizeof (lr_t
));
1402 itx
->itx_sync
= B_FALSE
;
1403 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1407 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1411 if (zil_replaying(zd
->zd_zilog
, tx
))
1414 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1415 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1416 sizeof (*lr
) - sizeof (lr_t
));
1418 itx
->itx_sync
= B_FALSE
;
1419 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1426 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1428 char *name
= (void *)(lr
+ 1); /* name follows lr */
1429 objset_t
*os
= zd
->zd_os
;
1430 ztest_block_tag_t
*bbt
;
1437 byteswap_uint64_array(lr
, sizeof (*lr
));
1439 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1440 ASSERT(name
[0] != '\0');
1442 tx
= dmu_tx_create(os
);
1444 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1446 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1447 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1449 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1452 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1456 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1458 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1459 if (lr
->lr_foid
== 0) {
1460 lr
->lr_foid
= zap_create(os
,
1461 lr
->lrz_type
, lr
->lrz_bonustype
,
1462 lr
->lrz_bonuslen
, tx
);
1464 error
= zap_create_claim(os
, lr
->lr_foid
,
1465 lr
->lrz_type
, lr
->lrz_bonustype
,
1466 lr
->lrz_bonuslen
, tx
);
1469 if (lr
->lr_foid
== 0) {
1470 lr
->lr_foid
= dmu_object_alloc(os
,
1471 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1472 lr
->lrz_bonuslen
, tx
);
1474 error
= dmu_object_claim(os
, lr
->lr_foid
,
1475 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1476 lr
->lrz_bonuslen
, tx
);
1481 ASSERT3U(error
, ==, EEXIST
);
1482 ASSERT(zd
->zd_zilog
->zl_replay
);
1487 ASSERT(lr
->lr_foid
!= 0);
1489 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1490 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1491 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1493 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1494 bbt
= ztest_bt_bonus(db
);
1495 dmu_buf_will_dirty(db
, tx
);
1496 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_gen
, txg
, txg
);
1497 dmu_buf_rele(db
, FTAG
);
1499 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1502 (void) ztest_log_create(zd
, tx
, lr
);
1510 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1512 char *name
= (void *)(lr
+ 1); /* name follows lr */
1513 objset_t
*os
= zd
->zd_os
;
1514 dmu_object_info_t doi
;
1516 uint64_t object
, txg
;
1519 byteswap_uint64_array(lr
, sizeof (*lr
));
1521 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1522 ASSERT(name
[0] != '\0');
1525 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1526 ASSERT(object
!= 0);
1528 ztest_object_lock(zd
, object
, RL_WRITER
);
1530 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1532 tx
= dmu_tx_create(os
);
1534 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1535 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1537 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1539 ztest_object_unlock(zd
, object
);
1543 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1544 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1546 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1549 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1551 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1555 ztest_object_unlock(zd
, object
);
1561 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1563 objset_t
*os
= zd
->zd_os
;
1564 void *data
= lr
+ 1; /* data follows lr */
1565 uint64_t offset
, length
;
1566 ztest_block_tag_t
*bt
= data
;
1567 ztest_block_tag_t
*bbt
;
1568 uint64_t gen
, txg
, lrtxg
, crtxg
;
1569 dmu_object_info_t doi
;
1572 arc_buf_t
*abuf
= NULL
;
1576 byteswap_uint64_array(lr
, sizeof (*lr
));
1578 offset
= lr
->lr_offset
;
1579 length
= lr
->lr_length
;
1581 /* If it's a dmu_sync() block, write the whole block */
1582 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1583 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1584 if (length
< blocksize
) {
1585 offset
-= offset
% blocksize
;
1590 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1591 byteswap_uint64_array(bt
, sizeof (*bt
));
1593 if (bt
->bt_magic
!= BT_MAGIC
)
1596 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1597 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1599 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1601 dmu_object_info_from_db(db
, &doi
);
1603 bbt
= ztest_bt_bonus(db
);
1604 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1606 crtxg
= bbt
->bt_crtxg
;
1607 lrtxg
= lr
->lr_common
.lrc_txg
;
1609 tx
= dmu_tx_create(os
);
1611 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1613 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1614 P2PHASE(offset
, length
) == 0)
1615 abuf
= dmu_request_arcbuf(db
, length
);
1617 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1620 dmu_return_arcbuf(abuf
);
1621 dmu_buf_rele(db
, FTAG
);
1622 ztest_range_unlock(rl
);
1623 ztest_object_unlock(zd
, lr
->lr_foid
);
1629 * Usually, verify the old data before writing new data --
1630 * but not always, because we also want to verify correct
1631 * behavior when the data was not recently read into cache.
1633 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1634 if (ztest_random(4) != 0) {
1635 int prefetch
= ztest_random(2) ?
1636 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1637 ztest_block_tag_t rbt
;
1639 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1640 sizeof (rbt
), &rbt
, prefetch
) == 0);
1641 if (rbt
.bt_magic
== BT_MAGIC
) {
1642 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
,
1643 offset
, gen
, txg
, crtxg
);
1648 * Writes can appear to be newer than the bonus buffer because
1649 * the ztest_get_data() callback does a dmu_read() of the
1650 * open-context data, which may be different than the data
1651 * as it was when the write was generated.
1653 if (zd
->zd_zilog
->zl_replay
) {
1654 ztest_bt_verify(bt
, os
, lr
->lr_foid
, offset
,
1655 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1660 * Set the bt's gen/txg to the bonus buffer's gen/txg
1661 * so that all of the usual ASSERTs will work.
1663 ztest_bt_generate(bt
, os
, lr
->lr_foid
, offset
, gen
, txg
, crtxg
);
1667 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1669 bcopy(data
, abuf
->b_data
, length
);
1670 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1673 (void) ztest_log_write(zd
, tx
, lr
);
1675 dmu_buf_rele(db
, FTAG
);
1679 ztest_range_unlock(rl
);
1680 ztest_object_unlock(zd
, lr
->lr_foid
);
1686 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1688 objset_t
*os
= zd
->zd_os
;
1694 byteswap_uint64_array(lr
, sizeof (*lr
));
1696 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1697 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1700 tx
= dmu_tx_create(os
);
1702 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1704 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1706 ztest_range_unlock(rl
);
1707 ztest_object_unlock(zd
, lr
->lr_foid
);
1711 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1712 lr
->lr_length
, tx
) == 0);
1714 (void) ztest_log_truncate(zd
, tx
, lr
);
1718 ztest_range_unlock(rl
);
1719 ztest_object_unlock(zd
, lr
->lr_foid
);
1725 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1727 objset_t
*os
= zd
->zd_os
;
1730 ztest_block_tag_t
*bbt
;
1731 uint64_t txg
, lrtxg
, crtxg
;
1734 byteswap_uint64_array(lr
, sizeof (*lr
));
1736 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1738 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1740 tx
= dmu_tx_create(os
);
1741 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1743 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1745 dmu_buf_rele(db
, FTAG
);
1746 ztest_object_unlock(zd
, lr
->lr_foid
);
1750 bbt
= ztest_bt_bonus(db
);
1751 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1752 crtxg
= bbt
->bt_crtxg
;
1753 lrtxg
= lr
->lr_common
.lrc_txg
;
1755 if (zd
->zd_zilog
->zl_replay
) {
1756 ASSERT(lr
->lr_size
!= 0);
1757 ASSERT(lr
->lr_mode
!= 0);
1761 * Randomly change the size and increment the generation.
1763 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
1765 lr
->lr_mode
= bbt
->bt_gen
+ 1;
1770 * Verify that the current bonus buffer is not newer than our txg.
1772 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
,
1773 MAX(txg
, lrtxg
), crtxg
);
1775 dmu_buf_will_dirty(db
, tx
);
1777 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
1778 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
1779 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
1780 bbt
= ztest_bt_bonus(db
);
1782 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
, txg
, crtxg
);
1784 dmu_buf_rele(db
, FTAG
);
1786 (void) ztest_log_setattr(zd
, tx
, lr
);
1790 ztest_object_unlock(zd
, lr
->lr_foid
);
1795 zil_replay_func_t
*ztest_replay_vector
[TX_MAX_TYPE
] = {
1796 NULL
, /* 0 no such transaction type */
1797 ztest_replay_create
, /* TX_CREATE */
1798 NULL
, /* TX_MKDIR */
1799 NULL
, /* TX_MKXATTR */
1800 NULL
, /* TX_SYMLINK */
1801 ztest_replay_remove
, /* TX_REMOVE */
1802 NULL
, /* TX_RMDIR */
1804 NULL
, /* TX_RENAME */
1805 ztest_replay_write
, /* TX_WRITE */
1806 ztest_replay_truncate
, /* TX_TRUNCATE */
1807 ztest_replay_setattr
, /* TX_SETATTR */
1809 NULL
, /* TX_CREATE_ACL */
1810 NULL
, /* TX_CREATE_ATTR */
1811 NULL
, /* TX_CREATE_ACL_ATTR */
1812 NULL
, /* TX_MKDIR_ACL */
1813 NULL
, /* TX_MKDIR_ATTR */
1814 NULL
, /* TX_MKDIR_ACL_ATTR */
1815 NULL
, /* TX_WRITE2 */
1819 * ZIL get_data callbacks
1823 ztest_get_done(zgd_t
*zgd
, int error
)
1825 ztest_ds_t
*zd
= zgd
->zgd_private
;
1826 uint64_t object
= zgd
->zgd_rl
->rl_object
;
1829 dmu_buf_rele(zgd
->zgd_db
, zgd
);
1831 ztest_range_unlock(zgd
->zgd_rl
);
1832 ztest_object_unlock(zd
, object
);
1834 if (error
== 0 && zgd
->zgd_bp
)
1835 zil_lwb_add_block(zgd
->zgd_lwb
, zgd
->zgd_bp
);
1837 umem_free(zgd
, sizeof (*zgd
));
1841 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, struct lwb
*lwb
,
1844 ztest_ds_t
*zd
= arg
;
1845 objset_t
*os
= zd
->zd_os
;
1846 uint64_t object
= lr
->lr_foid
;
1847 uint64_t offset
= lr
->lr_offset
;
1848 uint64_t size
= lr
->lr_length
;
1849 uint64_t txg
= lr
->lr_common
.lrc_txg
;
1851 dmu_object_info_t doi
;
1856 ASSERT3P(lwb
, !=, NULL
);
1857 ASSERT3P(zio
, !=, NULL
);
1858 ASSERT3U(size
, !=, 0);
1860 ztest_object_lock(zd
, object
, RL_READER
);
1861 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
1863 ztest_object_unlock(zd
, object
);
1867 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
1869 if (crtxg
== 0 || crtxg
> txg
) {
1870 dmu_buf_rele(db
, FTAG
);
1871 ztest_object_unlock(zd
, object
);
1875 dmu_object_info_from_db(db
, &doi
);
1876 dmu_buf_rele(db
, FTAG
);
1879 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
1881 zgd
->zgd_private
= zd
;
1883 if (buf
!= NULL
) { /* immediate write */
1884 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1887 error
= dmu_read(os
, object
, offset
, size
, buf
,
1888 DMU_READ_NO_PREFETCH
);
1891 size
= doi
.doi_data_block_size
;
1893 offset
= P2ALIGN(offset
, size
);
1895 ASSERT(offset
< size
);
1899 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1902 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
1903 DMU_READ_NO_PREFETCH
);
1906 blkptr_t
*bp
= &lr
->lr_blkptr
;
1911 ASSERT(db
->db_offset
== offset
);
1912 ASSERT(db
->db_size
== size
);
1914 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
1915 ztest_get_done
, zgd
);
1922 ztest_get_done(zgd
, error
);
1928 ztest_lr_alloc(size_t lrsize
, char *name
)
1931 size_t namesize
= name
? strlen(name
) + 1 : 0;
1933 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
1936 bcopy(name
, lr
+ lrsize
, namesize
);
1942 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
1944 size_t namesize
= name
? strlen(name
) + 1 : 0;
1946 umem_free(lr
, lrsize
+ namesize
);
1950 * Lookup a bunch of objects. Returns the number of objects not found.
1953 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1958 ASSERT(_mutex_held(&zd
->zd_dirobj_lock
));
1960 for (int i
= 0; i
< count
; i
++, od
++) {
1962 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
1963 sizeof (uint64_t), 1, &od
->od_object
);
1965 ASSERT(error
== ENOENT
);
1966 ASSERT(od
->od_object
== 0);
1970 ztest_block_tag_t
*bbt
;
1971 dmu_object_info_t doi
;
1973 ASSERT(od
->od_object
!= 0);
1974 ASSERT(missing
== 0); /* there should be no gaps */
1976 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
1977 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
1978 od
->od_object
, FTAG
, &db
));
1979 dmu_object_info_from_db(db
, &doi
);
1980 bbt
= ztest_bt_bonus(db
);
1981 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1982 od
->od_type
= doi
.doi_type
;
1983 od
->od_blocksize
= doi
.doi_data_block_size
;
1984 od
->od_gen
= bbt
->bt_gen
;
1985 dmu_buf_rele(db
, FTAG
);
1986 ztest_object_unlock(zd
, od
->od_object
);
1994 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
1998 ASSERT(_mutex_held(&zd
->zd_dirobj_lock
));
2000 for (int i
= 0; i
< count
; i
++, od
++) {
2007 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2009 lr
->lr_doid
= od
->od_dir
;
2010 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
2011 lr
->lrz_type
= od
->od_crtype
;
2012 lr
->lrz_blocksize
= od
->od_crblocksize
;
2013 lr
->lrz_ibshift
= ztest_random_ibshift();
2014 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
2015 lr
->lrz_bonuslen
= dmu_bonus_max();
2016 lr
->lr_gen
= od
->od_crgen
;
2017 lr
->lr_crtime
[0] = time(NULL
);
2019 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
2020 ASSERT(missing
== 0);
2024 od
->od_object
= lr
->lr_foid
;
2025 od
->od_type
= od
->od_crtype
;
2026 od
->od_blocksize
= od
->od_crblocksize
;
2027 od
->od_gen
= od
->od_crgen
;
2028 ASSERT(od
->od_object
!= 0);
2031 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2038 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2043 ASSERT(_mutex_held(&zd
->zd_dirobj_lock
));
2047 for (int i
= count
- 1; i
>= 0; i
--, od
--) {
2054 * No object was found.
2056 if (od
->od_object
== 0)
2059 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2061 lr
->lr_doid
= od
->od_dir
;
2063 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2064 ASSERT3U(error
, ==, ENOSPC
);
2069 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2076 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2082 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2084 lr
->lr_foid
= object
;
2085 lr
->lr_offset
= offset
;
2086 lr
->lr_length
= size
;
2088 BP_ZERO(&lr
->lr_blkptr
);
2090 bcopy(data
, lr
+ 1, size
);
2092 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2094 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2100 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2105 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2107 lr
->lr_foid
= object
;
2108 lr
->lr_offset
= offset
;
2109 lr
->lr_length
= size
;
2111 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2113 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2119 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2124 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2126 lr
->lr_foid
= object
;
2130 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2132 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2138 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2140 objset_t
*os
= zd
->zd_os
;
2145 txg_wait_synced(dmu_objset_pool(os
), 0);
2147 ztest_object_lock(zd
, object
, RL_READER
);
2148 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2150 tx
= dmu_tx_create(os
);
2152 dmu_tx_hold_write(tx
, object
, offset
, size
);
2154 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2157 dmu_prealloc(os
, object
, offset
, size
, tx
);
2159 txg_wait_synced(dmu_objset_pool(os
), txg
);
2161 (void) dmu_free_long_range(os
, object
, offset
, size
);
2164 ztest_range_unlock(rl
);
2165 ztest_object_unlock(zd
, object
);
2169 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2172 ztest_block_tag_t wbt
;
2173 dmu_object_info_t doi
;
2174 enum ztest_io_type io_type
;
2178 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2179 blocksize
= doi
.doi_data_block_size
;
2180 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2183 * Pick an i/o type at random, biased toward writing block tags.
2185 io_type
= ztest_random(ZTEST_IO_TYPES
);
2186 if (ztest_random(2) == 0)
2187 io_type
= ZTEST_IO_WRITE_TAG
;
2189 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2193 case ZTEST_IO_WRITE_TAG
:
2194 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, offset
, 0, 0, 0);
2195 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2198 case ZTEST_IO_WRITE_PATTERN
:
2199 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2200 if (ztest_random(2) == 0) {
2202 * Induce fletcher2 collisions to ensure that
2203 * zio_ddt_collision() detects and resolves them
2204 * when using fletcher2-verify for deduplication.
2206 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2207 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2209 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2212 case ZTEST_IO_WRITE_ZEROES
:
2213 bzero(data
, blocksize
);
2214 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2217 case ZTEST_IO_TRUNCATE
:
2218 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2221 case ZTEST_IO_SETATTR
:
2222 (void) ztest_setattr(zd
, object
);
2225 case ZTEST_IO_REWRITE
:
2226 (void) rw_rdlock(&ztest_name_lock
);
2227 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2228 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2230 VERIFY(err
== 0 || err
== ENOSPC
);
2231 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2232 ZFS_PROP_COMPRESSION
,
2233 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2235 VERIFY(err
== 0 || err
== ENOSPC
);
2236 (void) rw_unlock(&ztest_name_lock
);
2238 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2239 DMU_READ_NO_PREFETCH
));
2241 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2245 (void) rw_unlock(&zd
->zd_zilog_lock
);
2247 umem_free(data
, blocksize
);
2251 * Initialize an object description template.
2254 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2255 dmu_object_type_t type
, uint64_t blocksize
, uint64_t gen
)
2257 od
->od_dir
= ZTEST_DIROBJ
;
2260 od
->od_crtype
= type
;
2261 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2264 od
->od_type
= DMU_OT_NONE
;
2265 od
->od_blocksize
= 0;
2268 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2269 tag
, (int64_t)id
, index
);
2273 * Lookup or create the objects for a test using the od template.
2274 * If the objects do not all exist, or if 'remove' is specified,
2275 * remove any existing objects and create new ones. Otherwise,
2276 * use the existing objects.
2279 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2281 int count
= size
/ sizeof (*od
);
2284 VERIFY(mutex_lock(&zd
->zd_dirobj_lock
) == 0);
2285 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2286 (ztest_remove(zd
, od
, count
) != 0 ||
2287 ztest_create(zd
, od
, count
) != 0))
2290 VERIFY(mutex_unlock(&zd
->zd_dirobj_lock
) == 0);
2297 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2299 zilog_t
*zilog
= zd
->zd_zilog
;
2301 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2303 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2306 * Remember the committed values in zd, which is in parent/child
2307 * shared memory. If we die, the next iteration of ztest_run()
2308 * will verify that the log really does contain this record.
2310 mutex_enter(&zilog
->zl_lock
);
2311 ASSERT(zd
->zd_shared
!= NULL
);
2312 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2313 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2314 mutex_exit(&zilog
->zl_lock
);
2316 (void) rw_unlock(&zd
->zd_zilog_lock
);
2320 * This function is designed to simulate the operations that occur during a
2321 * mount/unmount operation. We hold the dataset across these operations in an
2322 * attempt to expose any implicit assumptions about ZIL management.
2326 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2328 objset_t
*os
= zd
->zd_os
;
2331 * We grab the zd_dirobj_lock to ensure that no other thread is
2332 * updating the zil (i.e. adding in-memory log records) and the
2333 * zd_zilog_lock to block any I/O.
2335 VERIFY0(mutex_lock(&zd
->zd_dirobj_lock
));
2336 (void) rw_wrlock(&zd
->zd_zilog_lock
);
2338 /* zfsvfs_teardown() */
2339 zil_close(zd
->zd_zilog
);
2341 /* zfsvfs_setup() */
2342 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2343 zil_replay(os
, zd
, ztest_replay_vector
);
2345 (void) rw_unlock(&zd
->zd_zilog_lock
);
2346 VERIFY(mutex_unlock(&zd
->zd_dirobj_lock
) == 0);
2350 * Verify that we can't destroy an active pool, create an existing pool,
2351 * or create a pool with a bad vdev spec.
2355 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2357 ztest_shared_opts_t
*zo
= &ztest_opts
;
2362 * Attempt to create using a bad file.
2364 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2365 VERIFY3U(ENOENT
, ==,
2366 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
));
2367 nvlist_free(nvroot
);
2370 * Attempt to create using a bad mirror.
2372 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2373 VERIFY3U(ENOENT
, ==,
2374 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
));
2375 nvlist_free(nvroot
);
2378 * Attempt to create an existing pool. It shouldn't matter
2379 * what's in the nvroot; we should fail with EEXIST.
2381 (void) rw_rdlock(&ztest_name_lock
);
2382 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2383 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
));
2384 nvlist_free(nvroot
);
2385 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2386 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2387 spa_close(spa
, FTAG
);
2389 (void) rw_unlock(&ztest_name_lock
);
2394 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2397 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2398 uint64_t version
, newversion
;
2399 nvlist_t
*nvroot
, *props
;
2402 VERIFY0(mutex_lock(&ztest_vdev_lock
));
2403 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2406 * Clean up from previous runs.
2408 (void) spa_destroy(name
);
2410 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2411 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2414 * If we're configuring a RAIDZ device then make sure that the
2415 * the initial version is capable of supporting that feature.
2417 switch (ztest_opts
.zo_raidz_parity
) {
2420 initial_version
= SPA_VERSION_INITIAL
;
2423 initial_version
= SPA_VERSION_RAIDZ2
;
2426 initial_version
= SPA_VERSION_RAIDZ3
;
2431 * Create a pool with a spa version that can be upgraded. Pick
2432 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2435 version
= ztest_random_spa_version(initial_version
);
2436 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2438 props
= fnvlist_alloc();
2439 fnvlist_add_uint64(props
,
2440 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2441 VERIFY0(spa_create(name
, nvroot
, props
, NULL
));
2442 fnvlist_free(nvroot
);
2443 fnvlist_free(props
);
2445 VERIFY0(spa_open(name
, &spa
, FTAG
));
2446 VERIFY3U(spa_version(spa
), ==, version
);
2447 newversion
= ztest_random_spa_version(version
+ 1);
2449 if (ztest_opts
.zo_verbose
>= 4) {
2450 (void) printf("upgrading spa version from %llu to %llu\n",
2451 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2454 spa_upgrade(spa
, newversion
);
2455 VERIFY3U(spa_version(spa
), >, version
);
2456 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2457 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2458 spa_close(spa
, FTAG
);
2461 VERIFY0(mutex_unlock(&ztest_vdev_lock
));
2465 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2469 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2472 for (int c
= 0; c
< vd
->vdev_children
; c
++)
2473 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2481 * Find the first available hole which can be used as a top-level.
2484 find_vdev_hole(spa_t
*spa
)
2486 vdev_t
*rvd
= spa
->spa_root_vdev
;
2489 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2491 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2492 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2494 if (cvd
->vdev_ishole
)
2501 * Verify that vdev_add() works as expected.
2505 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2507 ztest_shared_t
*zs
= ztest_shared
;
2508 spa_t
*spa
= ztest_spa
;
2514 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
2515 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2517 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2519 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2522 * If we have slogs then remove them 1/4 of the time.
2524 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2526 * Grab the guid from the head of the log class rotor.
2528 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2530 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2533 * We have to grab the zs_name_lock as writer to
2534 * prevent a race between removing a slog (dmu_objset_find)
2535 * and destroying a dataset. Removing the slog will
2536 * grab a reference on the dataset which may cause
2537 * dmu_objset_destroy() to fail with EBUSY thus
2538 * leaving the dataset in an inconsistent state.
2540 VERIFY(rw_wrlock(&ztest_name_lock
) == 0);
2541 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2542 VERIFY(rw_unlock(&ztest_name_lock
) == 0);
2544 if (error
&& error
!= EEXIST
)
2545 fatal(0, "spa_vdev_remove() = %d", error
);
2547 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2550 * Make 1/4 of the devices be log devices.
2552 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2553 ztest_opts
.zo_vdev_size
, 0,
2554 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2557 error
= spa_vdev_add(spa
, nvroot
);
2558 nvlist_free(nvroot
);
2560 if (error
== ENOSPC
)
2561 ztest_record_enospc("spa_vdev_add");
2562 else if (error
!= 0)
2563 fatal(0, "spa_vdev_add() = %d", error
);
2566 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2570 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2574 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2576 ztest_shared_t
*zs
= ztest_shared
;
2577 spa_t
*spa
= ztest_spa
;
2578 vdev_t
*rvd
= spa
->spa_root_vdev
;
2579 spa_aux_vdev_t
*sav
;
2584 if (ztest_random(2) == 0) {
2585 sav
= &spa
->spa_spares
;
2586 aux
= ZPOOL_CONFIG_SPARES
;
2588 sav
= &spa
->spa_l2cache
;
2589 aux
= ZPOOL_CONFIG_L2CACHE
;
2592 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
2594 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2596 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2598 * Pick a random device to remove.
2600 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2603 * Find an unused device we can add.
2605 zs
->zs_vdev_aux
= 0;
2607 char path
[MAXPATHLEN
];
2609 (void) snprintf(path
, sizeof (path
), ztest_aux_template
,
2610 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2612 for (c
= 0; c
< sav
->sav_count
; c
++)
2613 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2616 if (c
== sav
->sav_count
&&
2617 vdev_lookup_by_path(rvd
, path
) == NULL
)
2623 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2629 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2630 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2631 error
= spa_vdev_add(spa
, nvroot
);
2633 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2634 nvlist_free(nvroot
);
2637 * Remove an existing device. Sometimes, dirty its
2638 * vdev state first to make sure we handle removal
2639 * of devices that have pending state changes.
2641 if (ztest_random(2) == 0)
2642 (void) vdev_online(spa
, guid
, 0, NULL
);
2644 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2645 if (error
!= 0 && error
!= EBUSY
)
2646 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2649 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2653 * split a pool if it has mirror tlvdevs
2657 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2659 ztest_shared_t
*zs
= ztest_shared
;
2660 spa_t
*spa
= ztest_spa
;
2661 vdev_t
*rvd
= spa
->spa_root_vdev
;
2662 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2663 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2666 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
2668 /* ensure we have a useable config; mirrors of raidz aren't supported */
2669 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
2670 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2674 /* clean up the old pool, if any */
2675 (void) spa_destroy("splitp");
2677 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2679 /* generate a config from the existing config */
2680 mutex_enter(&spa
->spa_props_lock
);
2681 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2683 mutex_exit(&spa
->spa_props_lock
);
2685 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2688 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2689 for (c
= 0; c
< children
; c
++) {
2690 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2694 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2695 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2697 VERIFY(nvlist_add_string(schild
[schildren
],
2698 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2699 VERIFY(nvlist_add_uint64(schild
[schildren
],
2700 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2702 lastlogid
= schildren
;
2707 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2708 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2709 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2712 /* OK, create a config that can be used to split */
2713 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2714 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2715 VDEV_TYPE_ROOT
) == 0);
2716 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2717 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2719 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2720 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2722 for (c
= 0; c
< schildren
; c
++)
2723 nvlist_free(schild
[c
]);
2727 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2729 (void) rw_wrlock(&ztest_name_lock
);
2730 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2731 (void) rw_unlock(&ztest_name_lock
);
2733 nvlist_free(config
);
2736 (void) printf("successful split - results:\n");
2737 mutex_enter(&spa_namespace_lock
);
2738 show_pool_stats(spa
);
2739 show_pool_stats(spa_lookup("splitp"));
2740 mutex_exit(&spa_namespace_lock
);
2744 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2749 * Verify that we can attach and detach devices.
2753 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
2755 ztest_shared_t
*zs
= ztest_shared
;
2756 spa_t
*spa
= ztest_spa
;
2757 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
2758 vdev_t
*rvd
= spa
->spa_root_vdev
;
2759 vdev_t
*oldvd
, *newvd
, *pvd
;
2763 uint64_t ashift
= ztest_get_ashift();
2764 uint64_t oldguid
, pguid
;
2765 uint64_t oldsize
, newsize
;
2766 char oldpath
[MAXPATHLEN
], newpath
[MAXPATHLEN
];
2768 int oldvd_has_siblings
= B_FALSE
;
2769 int newvd_is_spare
= B_FALSE
;
2771 int error
, expected_error
;
2773 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
2774 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
2776 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2779 * Decide whether to do an attach or a replace.
2781 replacing
= ztest_random(2);
2784 * Pick a random top-level vdev.
2786 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2789 * Pick a random leaf within it.
2791 leaf
= ztest_random(leaves
);
2796 oldvd
= rvd
->vdev_child
[top
];
2797 if (zs
->zs_mirrors
>= 1) {
2798 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
2799 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
2800 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
2802 if (ztest_opts
.zo_raidz
> 1) {
2803 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
2804 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
2805 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
2809 * If we're already doing an attach or replace, oldvd may be a
2810 * mirror vdev -- in which case, pick a random child.
2812 while (oldvd
->vdev_children
!= 0) {
2813 oldvd_has_siblings
= B_TRUE
;
2814 ASSERT(oldvd
->vdev_children
>= 2);
2815 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
2818 oldguid
= oldvd
->vdev_guid
;
2819 oldsize
= vdev_get_min_asize(oldvd
);
2820 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
2821 (void) strcpy(oldpath
, oldvd
->vdev_path
);
2822 pvd
= oldvd
->vdev_parent
;
2823 pguid
= pvd
->vdev_guid
;
2826 * If oldvd has siblings, then half of the time, detach it.
2828 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
2829 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2830 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
2831 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
2833 fatal(0, "detach (%s) returned %d", oldpath
, error
);
2834 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2839 * For the new vdev, choose with equal probability between the two
2840 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2842 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
2843 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
2844 newvd_is_spare
= B_TRUE
;
2845 (void) strcpy(newpath
, newvd
->vdev_path
);
2847 (void) snprintf(newpath
, sizeof (newpath
), ztest_dev_template
,
2848 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
2849 top
* leaves
+ leaf
);
2850 if (ztest_random(2) == 0)
2851 newpath
[strlen(newpath
) - 1] = 'b';
2852 newvd
= vdev_lookup_by_path(rvd
, newpath
);
2856 newsize
= vdev_get_min_asize(newvd
);
2859 * Make newsize a little bigger or smaller than oldsize.
2860 * If it's smaller, the attach should fail.
2861 * If it's larger, and we're doing a replace,
2862 * we should get dynamic LUN growth when we're done.
2864 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
2868 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2869 * unless it's a replace; in that case any non-replacing parent is OK.
2871 * If newvd is already part of the pool, it should fail with EBUSY.
2873 * If newvd is too small, it should fail with EOVERFLOW.
2875 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
2876 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
2877 pvd
->vdev_ops
== &vdev_replacing_ops
||
2878 pvd
->vdev_ops
== &vdev_spare_ops
))
2879 expected_error
= ENOTSUP
;
2880 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
2881 expected_error
= ENOTSUP
;
2882 else if (newvd
== oldvd
)
2883 expected_error
= replacing
? 0 : EBUSY
;
2884 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
2885 expected_error
= EBUSY
;
2886 else if (newsize
< oldsize
)
2887 expected_error
= EOVERFLOW
;
2888 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
2889 expected_error
= EDOM
;
2893 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2896 * Build the nvlist describing newpath.
2898 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
2899 ashift
, 0, 0, 0, 1);
2901 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
2906 * If our parent was the replacing vdev, but the replace completed,
2907 * then instead of failing with ENOTSUP we may either succeed,
2908 * fail with ENODEV, or fail with EOVERFLOW.
2910 if (expected_error
== ENOTSUP
&&
2911 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
2912 expected_error
= error
;
2915 * If someone grew the LUN, the replacement may be too small.
2917 if (error
== EOVERFLOW
|| error
== EBUSY
)
2918 expected_error
= error
;
2920 /* XXX workaround 6690467 */
2921 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
2922 fatal(0, "attach (%s %llu, %s %llu, %d) "
2923 "returned %d, expected %d",
2924 oldpath
, oldsize
, newpath
,
2925 newsize
, replacing
, error
, expected_error
);
2928 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
2932 * Callback function which expands the physical size of the vdev.
2935 grow_vdev(vdev_t
*vd
, void *arg
)
2937 spa_t
*spa
= vd
->vdev_spa
;
2938 size_t *newsize
= arg
;
2942 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2943 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2945 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
2948 fsize
= lseek(fd
, 0, SEEK_END
);
2949 (void) ftruncate(fd
, *newsize
);
2951 if (ztest_opts
.zo_verbose
>= 6) {
2952 (void) printf("%s grew from %lu to %lu bytes\n",
2953 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
2960 * Callback function which expands a given vdev by calling vdev_online().
2964 online_vdev(vdev_t
*vd
, void *arg
)
2966 spa_t
*spa
= vd
->vdev_spa
;
2967 vdev_t
*tvd
= vd
->vdev_top
;
2968 uint64_t guid
= vd
->vdev_guid
;
2969 uint64_t generation
= spa
->spa_config_generation
+ 1;
2970 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
2973 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
2974 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
2976 /* Calling vdev_online will initialize the new metaslabs */
2977 spa_config_exit(spa
, SCL_STATE
, spa
);
2978 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
2979 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
2982 * If vdev_online returned an error or the underlying vdev_open
2983 * failed then we abort the expand. The only way to know that
2984 * vdev_open fails is by checking the returned newstate.
2986 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
2987 if (ztest_opts
.zo_verbose
>= 5) {
2988 (void) printf("Unable to expand vdev, state %llu, "
2989 "error %d\n", (u_longlong_t
)newstate
, error
);
2993 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
2996 * Since we dropped the lock we need to ensure that we're
2997 * still talking to the original vdev. It's possible this
2998 * vdev may have been detached/replaced while we were
2999 * trying to online it.
3001 if (generation
!= spa
->spa_config_generation
) {
3002 if (ztest_opts
.zo_verbose
>= 5) {
3003 (void) printf("vdev configuration has changed, "
3004 "guid %llu, state %llu, expected gen %llu, "
3007 (u_longlong_t
)tvd
->vdev_state
,
3008 (u_longlong_t
)generation
,
3009 (u_longlong_t
)spa
->spa_config_generation
);
3017 * Traverse the vdev tree calling the supplied function.
3018 * We continue to walk the tree until we either have walked all
3019 * children or we receive a non-NULL return from the callback.
3020 * If a NULL callback is passed, then we just return back the first
3021 * leaf vdev we encounter.
3024 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
3026 if (vd
->vdev_ops
->vdev_op_leaf
) {
3030 return (func(vd
, arg
));
3033 for (uint_t c
= 0; c
< vd
->vdev_children
; c
++) {
3034 vdev_t
*cvd
= vd
->vdev_child
[c
];
3035 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3042 * Verify that dynamic LUN growth works as expected.
3046 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3048 spa_t
*spa
= ztest_spa
;
3050 metaslab_class_t
*mc
;
3051 metaslab_group_t
*mg
;
3052 size_t psize
, newsize
;
3054 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3056 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
3057 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3059 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3061 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3064 old_ms_count
= tvd
->vdev_ms_count
;
3065 old_class_space
= metaslab_class_get_space(mc
);
3068 * Determine the size of the first leaf vdev associated with
3069 * our top-level device.
3071 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3072 ASSERT3P(vd
, !=, NULL
);
3073 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3075 psize
= vd
->vdev_psize
;
3078 * We only try to expand the vdev if it's healthy, less than 4x its
3079 * original size, and it has a valid psize.
3081 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3082 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3083 spa_config_exit(spa
, SCL_STATE
, spa
);
3084 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
3088 newsize
= psize
+ psize
/ 8;
3089 ASSERT3U(newsize
, >, psize
);
3091 if (ztest_opts
.zo_verbose
>= 6) {
3092 (void) printf("Expanding LUN %s from %lu to %lu\n",
3093 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3097 * Growing the vdev is a two step process:
3098 * 1). expand the physical size (i.e. relabel)
3099 * 2). online the vdev to create the new metaslabs
3101 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3102 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3103 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3104 if (ztest_opts
.zo_verbose
>= 5) {
3105 (void) printf("Could not expand LUN because "
3106 "the vdev configuration changed.\n");
3108 spa_config_exit(spa
, SCL_STATE
, spa
);
3109 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
3113 spa_config_exit(spa
, SCL_STATE
, spa
);
3116 * Expanding the LUN will update the config asynchronously,
3117 * thus we must wait for the async thread to complete any
3118 * pending tasks before proceeding.
3122 mutex_enter(&spa
->spa_async_lock
);
3123 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3124 mutex_exit(&spa
->spa_async_lock
);
3127 txg_wait_synced(spa_get_dsl(spa
), 0);
3128 (void) poll(NULL
, 0, 100);
3131 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3133 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3134 new_ms_count
= tvd
->vdev_ms_count
;
3135 new_class_space
= metaslab_class_get_space(mc
);
3137 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3138 if (ztest_opts
.zo_verbose
>= 5) {
3139 (void) printf("Could not verify LUN expansion due to "
3140 "intervening vdev offline or remove.\n");
3142 spa_config_exit(spa
, SCL_STATE
, spa
);
3143 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
3148 * Make sure we were able to grow the vdev.
3150 if (new_ms_count
<= old_ms_count
)
3151 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3152 old_ms_count
, new_ms_count
);
3155 * Make sure we were able to grow the pool.
3157 if (new_class_space
<= old_class_space
)
3158 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3159 old_class_space
, new_class_space
);
3161 if (ztest_opts
.zo_verbose
>= 5) {
3162 char oldnumbuf
[NN_NUMBUF_SZ
], newnumbuf
[NN_NUMBUF_SZ
];
3164 nicenum(old_class_space
, oldnumbuf
, sizeof (oldnumbuf
));
3165 nicenum(new_class_space
, newnumbuf
, sizeof (newnumbuf
));
3166 (void) printf("%s grew from %s to %s\n",
3167 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3170 spa_config_exit(spa
, SCL_STATE
, spa
);
3171 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
3175 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3179 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3182 * Create the objects common to all ztest datasets.
3184 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3185 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3189 ztest_dataset_create(char *dsname
)
3191 uint64_t zilset
= ztest_random(100);
3192 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3193 ztest_objset_create_cb
, NULL
);
3195 if (err
|| zilset
< 80)
3198 if (ztest_opts
.zo_verbose
>= 6)
3199 (void) printf("Setting dataset %s to sync always\n", dsname
);
3200 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3201 ZFS_SYNC_ALWAYS
, B_FALSE
));
3206 ztest_objset_destroy_cb(const char *name
, void *arg
)
3209 dmu_object_info_t doi
;
3213 * Verify that the dataset contains a directory object.
3215 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
, FTAG
, &os
));
3216 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3217 if (error
!= ENOENT
) {
3218 /* We could have crashed in the middle of destroying it */
3220 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3221 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3223 dmu_objset_disown(os
, FTAG
);
3226 * Destroy the dataset.
3228 if (strchr(name
, '@') != NULL
) {
3229 VERIFY0(dsl_destroy_snapshot(name
, B_TRUE
));
3231 error
= dsl_destroy_head(name
);
3232 /* There could be a hold on this dataset */
3240 ztest_snapshot_create(char *osname
, uint64_t id
)
3242 char snapname
[ZFS_MAX_DATASET_NAME_LEN
];
3245 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3247 error
= dmu_objset_snapshot_one(osname
, snapname
);
3248 if (error
== ENOSPC
) {
3249 ztest_record_enospc(FTAG
);
3252 if (error
!= 0 && error
!= EEXIST
) {
3253 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3260 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3262 char snapname
[ZFS_MAX_DATASET_NAME_LEN
];
3265 (void) snprintf(snapname
, sizeof (snapname
), "%s@%llu", osname
,
3268 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3269 if (error
!= 0 && error
!= ENOENT
)
3270 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3276 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3282 char name
[ZFS_MAX_DATASET_NAME_LEN
];
3285 (void) rw_rdlock(&ztest_name_lock
);
3287 (void) snprintf(name
, sizeof (name
), "%s/temp_%llu",
3288 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3291 * If this dataset exists from a previous run, process its replay log
3292 * half of the time. If we don't replay it, then dmu_objset_destroy()
3293 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3295 if (ztest_random(2) == 0 &&
3296 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3297 ztest_zd_init(&zdtmp
, NULL
, os
);
3298 zil_replay(os
, &zdtmp
, ztest_replay_vector
);
3299 ztest_zd_fini(&zdtmp
);
3300 dmu_objset_disown(os
, FTAG
);
3304 * There may be an old instance of the dataset we're about to
3305 * create lying around from a previous run. If so, destroy it
3306 * and all of its snapshots.
3308 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3309 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3312 * Verify that the destroyed dataset is no longer in the namespace.
3314 VERIFY3U(ENOENT
, ==, dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3318 * Verify that we can create a new dataset.
3320 error
= ztest_dataset_create(name
);
3322 if (error
== ENOSPC
) {
3323 ztest_record_enospc(FTAG
);
3324 (void) rw_unlock(&ztest_name_lock
);
3327 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3330 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3332 ztest_zd_init(&zdtmp
, NULL
, os
);
3335 * Open the intent log for it.
3337 zilog
= zil_open(os
, ztest_get_data
);
3340 * Put some objects in there, do a little I/O to them,
3341 * and randomly take a couple of snapshots along the way.
3343 iters
= ztest_random(5);
3344 for (int i
= 0; i
< iters
; i
++) {
3345 ztest_dmu_object_alloc_free(&zdtmp
, id
);
3346 if (ztest_random(iters
) == 0)
3347 (void) ztest_snapshot_create(name
, i
);
3351 * Verify that we cannot create an existing dataset.
3353 VERIFY3U(EEXIST
, ==,
3354 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3357 * Verify that we can hold an objset that is also owned.
3359 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3360 dmu_objset_rele(os2
, FTAG
);
3363 * Verify that we cannot own an objset that is already owned.
3366 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3369 dmu_objset_disown(os
, FTAG
);
3370 ztest_zd_fini(&zdtmp
);
3372 (void) rw_unlock(&ztest_name_lock
);
3376 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3379 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3381 (void) rw_rdlock(&ztest_name_lock
);
3382 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3383 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3384 (void) rw_unlock(&ztest_name_lock
);
3388 * Cleanup non-standard snapshots and clones.
3391 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3393 char snap1name
[ZFS_MAX_DATASET_NAME_LEN
];
3394 char clone1name
[ZFS_MAX_DATASET_NAME_LEN
];
3395 char snap2name
[ZFS_MAX_DATASET_NAME_LEN
];
3396 char clone2name
[ZFS_MAX_DATASET_NAME_LEN
];
3397 char snap3name
[ZFS_MAX_DATASET_NAME_LEN
];
3400 (void) snprintf(snap1name
, sizeof (snap1name
),
3401 "%s@s1_%llu", osname
, id
);
3402 (void) snprintf(clone1name
, sizeof (clone1name
),
3403 "%s/c1_%llu", osname
, id
);
3404 (void) snprintf(snap2name
, sizeof (snap2name
),
3405 "%s@s2_%llu", clone1name
, id
);
3406 (void) snprintf(clone2name
, sizeof (clone2name
),
3407 "%s/c2_%llu", osname
, id
);
3408 (void) snprintf(snap3name
, sizeof (snap3name
),
3409 "%s@s3_%llu", clone1name
, id
);
3411 error
= dsl_destroy_head(clone2name
);
3412 if (error
&& error
!= ENOENT
)
3413 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3414 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3415 if (error
&& error
!= ENOENT
)
3416 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3417 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3418 if (error
&& error
!= ENOENT
)
3419 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3420 error
= dsl_destroy_head(clone1name
);
3421 if (error
&& error
!= ENOENT
)
3422 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3423 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3424 if (error
&& error
!= ENOENT
)
3425 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3429 * Verify dsl_dataset_promote handles EBUSY
3432 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3435 char snap1name
[ZFS_MAX_DATASET_NAME_LEN
];
3436 char clone1name
[ZFS_MAX_DATASET_NAME_LEN
];
3437 char snap2name
[ZFS_MAX_DATASET_NAME_LEN
];
3438 char clone2name
[ZFS_MAX_DATASET_NAME_LEN
];
3439 char snap3name
[ZFS_MAX_DATASET_NAME_LEN
];
3440 char *osname
= zd
->zd_name
;
3443 (void) rw_rdlock(&ztest_name_lock
);
3445 ztest_dsl_dataset_cleanup(osname
, id
);
3447 (void) snprintf(snap1name
, sizeof (snap1name
),
3448 "%s@s1_%llu", osname
, id
);
3449 (void) snprintf(clone1name
, sizeof (clone1name
),
3450 "%s/c1_%llu", osname
, id
);
3451 (void) snprintf(snap2name
, sizeof (snap2name
),
3452 "%s@s2_%llu", clone1name
, id
);
3453 (void) snprintf(clone2name
, sizeof (clone2name
),
3454 "%s/c2_%llu", osname
, id
);
3455 (void) snprintf(snap3name
, sizeof (snap3name
),
3456 "%s@s3_%llu", clone1name
, id
);
3458 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3459 if (error
&& error
!= EEXIST
) {
3460 if (error
== ENOSPC
) {
3461 ztest_record_enospc(FTAG
);
3464 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3467 error
= dmu_objset_clone(clone1name
, snap1name
);
3469 if (error
== ENOSPC
) {
3470 ztest_record_enospc(FTAG
);
3473 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3476 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3477 if (error
&& error
!= EEXIST
) {
3478 if (error
== ENOSPC
) {
3479 ztest_record_enospc(FTAG
);
3482 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3485 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3486 if (error
&& error
!= EEXIST
) {
3487 if (error
== ENOSPC
) {
3488 ztest_record_enospc(FTAG
);
3491 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3494 error
= dmu_objset_clone(clone2name
, snap3name
);
3496 if (error
== ENOSPC
) {
3497 ztest_record_enospc(FTAG
);
3500 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3503 error
= dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, FTAG
, &os
);
3505 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3506 error
= dsl_dataset_promote(clone2name
, NULL
);
3507 if (error
== ENOSPC
) {
3508 dmu_objset_disown(os
, FTAG
);
3509 ztest_record_enospc(FTAG
);
3513 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3515 dmu_objset_disown(os
, FTAG
);
3518 ztest_dsl_dataset_cleanup(osname
, id
);
3520 (void) rw_unlock(&ztest_name_lock
);
3524 * Verify that dmu_object_{alloc,free} work as expected.
3527 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3530 int batchsize
= sizeof (od
) / sizeof (od
[0]);
3532 for (int b
= 0; b
< batchsize
; b
++)
3533 ztest_od_init(&od
[b
], id
, FTAG
, b
, DMU_OT_UINT64_OTHER
, 0, 0);
3536 * Destroy the previous batch of objects, create a new batch,
3537 * and do some I/O on the new objects.
3539 if (ztest_object_init(zd
, od
, sizeof (od
), B_TRUE
) != 0)
3542 while (ztest_random(4 * batchsize
) != 0)
3543 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3544 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3548 * Verify that dmu_{read,write} work as expected.
3551 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3553 objset_t
*os
= zd
->zd_os
;
3556 int i
, freeit
, error
;
3558 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3559 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3560 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3561 uint64_t regions
= 997;
3562 uint64_t stride
= 123456789ULL;
3563 uint64_t width
= 40;
3564 int free_percent
= 5;
3567 * This test uses two objects, packobj and bigobj, that are always
3568 * updated together (i.e. in the same tx) so that their contents are
3569 * in sync and can be compared. Their contents relate to each other
3570 * in a simple way: packobj is a dense array of 'bufwad' structures,
3571 * while bigobj is a sparse array of the same bufwads. Specifically,
3572 * for any index n, there are three bufwads that should be identical:
3574 * packobj, at offset n * sizeof (bufwad_t)
3575 * bigobj, at the head of the nth chunk
3576 * bigobj, at the tail of the nth chunk
3578 * The chunk size is arbitrary. It doesn't have to be a power of two,
3579 * and it doesn't have any relation to the object blocksize.
3580 * The only requirement is that it can hold at least two bufwads.
3582 * Normally, we write the bufwad to each of these locations.
3583 * However, free_percent of the time we instead write zeroes to
3584 * packobj and perform a dmu_free_range() on bigobj. By comparing
3585 * bigobj to packobj, we can verify that the DMU is correctly
3586 * tracking which parts of an object are allocated and free,
3587 * and that the contents of the allocated blocks are correct.
3591 * Read the directory info. If it's the first time, set things up.
3593 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3594 ztest_od_init(&od
[1], id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3596 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
3599 bigobj
= od
[0].od_object
;
3600 packobj
= od
[1].od_object
;
3601 chunksize
= od
[0].od_gen
;
3602 ASSERT(chunksize
== od
[1].od_gen
);
3605 * Prefetch a random chunk of the big object.
3606 * Our aim here is to get some async reads in flight
3607 * for blocks that we may free below; the DMU should
3608 * handle this race correctly.
3610 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3611 s
= 1 + ztest_random(2 * width
- 1);
3612 dmu_prefetch(os
, bigobj
, 0, n
* chunksize
, s
* chunksize
,
3613 ZIO_PRIORITY_SYNC_READ
);
3616 * Pick a random index and compute the offsets into packobj and bigobj.
3618 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3619 s
= 1 + ztest_random(width
- 1);
3621 packoff
= n
* sizeof (bufwad_t
);
3622 packsize
= s
* sizeof (bufwad_t
);
3624 bigoff
= n
* chunksize
;
3625 bigsize
= s
* chunksize
;
3627 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3628 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3631 * free_percent of the time, free a range of bigobj rather than
3634 freeit
= (ztest_random(100) < free_percent
);
3637 * Read the current contents of our objects.
3639 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3642 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3647 * Get a tx for the mods to both packobj and bigobj.
3649 tx
= dmu_tx_create(os
);
3651 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3654 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3656 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3658 /* This accounts for setting the checksum/compression. */
3659 dmu_tx_hold_bonus(tx
, bigobj
);
3661 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3663 umem_free(packbuf
, packsize
);
3664 umem_free(bigbuf
, bigsize
);
3668 enum zio_checksum cksum
;
3670 cksum
= (enum zio_checksum
)
3671 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
);
3672 } while (cksum
>= ZIO_CHECKSUM_LEGACY_FUNCTIONS
);
3673 dmu_object_set_checksum(os
, bigobj
, cksum
, tx
);
3675 enum zio_compress comp
;
3677 comp
= (enum zio_compress
)
3678 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
);
3679 } while (comp
>= ZIO_COMPRESS_LEGACY_FUNCTIONS
);
3680 dmu_object_set_compress(os
, bigobj
, comp
, tx
);
3683 * For each index from n to n + s, verify that the existing bufwad
3684 * in packobj matches the bufwads at the head and tail of the
3685 * corresponding chunk in bigobj. Then update all three bufwads
3686 * with the new values we want to write out.
3688 for (i
= 0; i
< s
; i
++) {
3690 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3692 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3694 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3696 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3697 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3699 if (pack
->bw_txg
> txg
)
3700 fatal(0, "future leak: got %llx, open txg is %llx",
3703 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3704 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3705 pack
->bw_index
, n
, i
);
3707 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3708 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3710 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3711 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3714 bzero(pack
, sizeof (bufwad_t
));
3716 pack
->bw_index
= n
+ i
;
3718 pack
->bw_data
= 1 + ztest_random(-2ULL);
3725 * We've verified all the old bufwads, and made new ones.
3726 * Now write them out.
3728 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3731 if (ztest_opts
.zo_verbose
>= 7) {
3732 (void) printf("freeing offset %llx size %llx"
3734 (u_longlong_t
)bigoff
,
3735 (u_longlong_t
)bigsize
,
3738 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
3740 if (ztest_opts
.zo_verbose
>= 7) {
3741 (void) printf("writing offset %llx size %llx"
3743 (u_longlong_t
)bigoff
,
3744 (u_longlong_t
)bigsize
,
3747 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
3753 * Sanity check the stuff we just wrote.
3756 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3757 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3759 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3760 packsize
, packcheck
, DMU_READ_PREFETCH
));
3761 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3762 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3764 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3765 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3767 umem_free(packcheck
, packsize
);
3768 umem_free(bigcheck
, bigsize
);
3771 umem_free(packbuf
, packsize
);
3772 umem_free(bigbuf
, bigsize
);
3776 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
3777 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
3785 * For each index from n to n + s, verify that the existing bufwad
3786 * in packobj matches the bufwads at the head and tail of the
3787 * corresponding chunk in bigobj. Then update all three bufwads
3788 * with the new values we want to write out.
3790 for (i
= 0; i
< s
; i
++) {
3792 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3794 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3796 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3798 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3799 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3801 if (pack
->bw_txg
> txg
)
3802 fatal(0, "future leak: got %llx, open txg is %llx",
3805 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3806 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3807 pack
->bw_index
, n
, i
);
3809 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3810 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3812 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3813 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3815 pack
->bw_index
= n
+ i
;
3817 pack
->bw_data
= 1 + ztest_random(-2ULL);
3825 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
3827 objset_t
*os
= zd
->zd_os
;
3833 bufwad_t
*packbuf
, *bigbuf
;
3834 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3835 uint64_t blocksize
= ztest_random_blocksize();
3836 uint64_t chunksize
= blocksize
;
3837 uint64_t regions
= 997;
3838 uint64_t stride
= 123456789ULL;
3840 dmu_buf_t
*bonus_db
;
3841 arc_buf_t
**bigbuf_arcbufs
;
3842 dmu_object_info_t doi
;
3845 * This test uses two objects, packobj and bigobj, that are always
3846 * updated together (i.e. in the same tx) so that their contents are
3847 * in sync and can be compared. Their contents relate to each other
3848 * in a simple way: packobj is a dense array of 'bufwad' structures,
3849 * while bigobj is a sparse array of the same bufwads. Specifically,
3850 * for any index n, there are three bufwads that should be identical:
3852 * packobj, at offset n * sizeof (bufwad_t)
3853 * bigobj, at the head of the nth chunk
3854 * bigobj, at the tail of the nth chunk
3856 * The chunk size is set equal to bigobj block size so that
3857 * dmu_assign_arcbuf() can be tested for object updates.
3861 * Read the directory info. If it's the first time, set things up.
3863 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
3864 ztest_od_init(&od
[1], id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3866 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
3869 bigobj
= od
[0].od_object
;
3870 packobj
= od
[1].od_object
;
3871 blocksize
= od
[0].od_blocksize
;
3872 chunksize
= blocksize
;
3873 ASSERT(chunksize
== od
[1].od_gen
);
3875 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
3876 VERIFY(ISP2(doi
.doi_data_block_size
));
3877 VERIFY(chunksize
== doi
.doi_data_block_size
);
3878 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
3881 * Pick a random index and compute the offsets into packobj and bigobj.
3883 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3884 s
= 1 + ztest_random(width
- 1);
3886 packoff
= n
* sizeof (bufwad_t
);
3887 packsize
= s
* sizeof (bufwad_t
);
3889 bigoff
= n
* chunksize
;
3890 bigsize
= s
* chunksize
;
3892 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
3893 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
3895 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
3897 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
3900 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
3901 * Iteration 1 test zcopy to already referenced dbufs.
3902 * Iteration 2 test zcopy to dirty dbuf in the same txg.
3903 * Iteration 3 test zcopy to dbuf dirty in previous txg.
3904 * Iteration 4 test zcopy when dbuf is no longer dirty.
3905 * Iteration 5 test zcopy when it can't be done.
3906 * Iteration 6 one more zcopy write.
3908 for (i
= 0; i
< 7; i
++) {
3913 * In iteration 5 (i == 5) use arcbufs
3914 * that don't match bigobj blksz to test
3915 * dmu_assign_arcbuf() when it can't directly
3916 * assign an arcbuf to a dbuf.
3918 for (j
= 0; j
< s
; j
++) {
3919 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
3921 dmu_request_arcbuf(bonus_db
, chunksize
);
3923 bigbuf_arcbufs
[2 * j
] =
3924 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
3925 bigbuf_arcbufs
[2 * j
+ 1] =
3926 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
3931 * Get a tx for the mods to both packobj and bigobj.
3933 tx
= dmu_tx_create(os
);
3935 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3936 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3938 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3940 umem_free(packbuf
, packsize
);
3941 umem_free(bigbuf
, bigsize
);
3942 for (j
= 0; j
< s
; j
++) {
3944 chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
3945 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
3948 bigbuf_arcbufs
[2 * j
]);
3950 bigbuf_arcbufs
[2 * j
+ 1]);
3953 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
3954 dmu_buf_rele(bonus_db
, FTAG
);
3959 * 50% of the time don't read objects in the 1st iteration to
3960 * test dmu_assign_arcbuf() for the case when there're no
3961 * existing dbufs for the specified offsets.
3963 if (i
!= 0 || ztest_random(2) != 0) {
3964 error
= dmu_read(os
, packobj
, packoff
,
3965 packsize
, packbuf
, DMU_READ_PREFETCH
);
3967 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
3968 bigbuf
, DMU_READ_PREFETCH
);
3971 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
3975 * We've verified all the old bufwads, and made new ones.
3976 * Now write them out.
3978 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3979 if (ztest_opts
.zo_verbose
>= 7) {
3980 (void) printf("writing offset %llx size %llx"
3982 (u_longlong_t
)bigoff
,
3983 (u_longlong_t
)bigsize
,
3986 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
3988 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
3989 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
3990 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
3992 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
3993 bigbuf_arcbufs
[2 * j
]->b_data
,
3995 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
3997 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
4002 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
4003 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
4005 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4006 dmu_assign_arcbuf(bonus_db
, off
,
4007 bigbuf_arcbufs
[j
], tx
);
4009 dmu_assign_arcbuf(bonus_db
, off
,
4010 bigbuf_arcbufs
[2 * j
], tx
);
4011 dmu_assign_arcbuf(bonus_db
,
4012 off
+ chunksize
/ 2,
4013 bigbuf_arcbufs
[2 * j
+ 1], tx
);
4016 dmu_buf_rele(dbt
, FTAG
);
4022 * Sanity check the stuff we just wrote.
4025 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4026 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4028 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4029 packsize
, packcheck
, DMU_READ_PREFETCH
));
4030 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4031 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4033 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4034 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4036 umem_free(packcheck
, packsize
);
4037 umem_free(bigcheck
, bigsize
);
4040 txg_wait_open(dmu_objset_pool(os
), 0);
4041 } else if (i
== 3) {
4042 txg_wait_synced(dmu_objset_pool(os
), 0);
4046 dmu_buf_rele(bonus_db
, FTAG
);
4047 umem_free(packbuf
, packsize
);
4048 umem_free(bigbuf
, bigsize
);
4049 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4054 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
4057 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
4058 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4061 * Have multiple threads write to large offsets in an object
4062 * to verify that parallel writes to an object -- even to the
4063 * same blocks within the object -- doesn't cause any trouble.
4065 ztest_od_init(&od
[0], ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4067 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
4070 while (ztest_random(10) != 0)
4071 ztest_io(zd
, od
[0].od_object
, offset
);
4075 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4078 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4079 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4080 uint64_t count
= ztest_random(20) + 1;
4081 uint64_t blocksize
= ztest_random_blocksize();
4084 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4086 if (ztest_object_init(zd
, od
, sizeof (od
), !ztest_random(2)) != 0)
4089 if (ztest_truncate(zd
, od
[0].od_object
, offset
, count
* blocksize
) != 0)
4092 ztest_prealloc(zd
, od
[0].od_object
, offset
, count
* blocksize
);
4094 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4096 while (ztest_random(count
) != 0) {
4097 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4098 if (ztest_write(zd
, od
[0].od_object
, randoff
, blocksize
,
4101 while (ztest_random(4) != 0)
4102 ztest_io(zd
, od
[0].od_object
, randoff
);
4105 umem_free(data
, blocksize
);
4109 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4111 #define ZTEST_ZAP_MIN_INTS 1
4112 #define ZTEST_ZAP_MAX_INTS 4
4113 #define ZTEST_ZAP_MAX_PROPS 1000
4116 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4118 objset_t
*os
= zd
->zd_os
;
4121 uint64_t txg
, last_txg
;
4122 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4123 uint64_t zl_ints
, zl_intsize
, prop
;
4126 char propname
[100], txgname
[100];
4128 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4130 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4132 if (ztest_object_init(zd
, od
, sizeof (od
), !ztest_random(2)) != 0)
4135 object
= od
[0].od_object
;
4138 * Generate a known hash collision, and verify that
4139 * we can lookup and remove both entries.
4141 tx
= dmu_tx_create(os
);
4142 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4143 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4146 for (i
= 0; i
< 2; i
++) {
4148 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4151 for (i
= 0; i
< 2; i
++) {
4152 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4153 sizeof (uint64_t), 1, &value
[i
], tx
));
4155 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4156 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4157 ASSERT3U(zl_ints
, ==, 1);
4159 for (i
= 0; i
< 2; i
++) {
4160 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4165 * Generate a buch of random entries.
4167 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4169 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4170 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4171 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4172 bzero(value
, sizeof (value
));
4176 * If these zap entries already exist, validate their contents.
4178 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4180 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4181 ASSERT3U(zl_ints
, ==, 1);
4183 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4184 zl_ints
, &last_txg
) == 0);
4186 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4189 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4190 ASSERT3U(zl_ints
, ==, ints
);
4192 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4193 zl_ints
, value
) == 0);
4195 for (i
= 0; i
< ints
; i
++) {
4196 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4199 ASSERT3U(error
, ==, ENOENT
);
4203 * Atomically update two entries in our zap object.
4204 * The first is named txg_%llu, and contains the txg
4205 * in which the property was last updated. The second
4206 * is named prop_%llu, and the nth element of its value
4207 * should be txg + object + n.
4209 tx
= dmu_tx_create(os
);
4210 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4211 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4216 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4218 for (i
= 0; i
< ints
; i
++)
4219 value
[i
] = txg
+ object
+ i
;
4221 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4223 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4229 * Remove a random pair of entries.
4231 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4232 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4233 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4235 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4237 if (error
== ENOENT
)
4242 tx
= dmu_tx_create(os
);
4243 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4244 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4247 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4248 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4253 * Testcase to test the upgrading of a microzap to fatzap.
4256 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4258 objset_t
*os
= zd
->zd_os
;
4260 uint64_t object
, txg
;
4262 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4264 if (ztest_object_init(zd
, od
, sizeof (od
), !ztest_random(2)) != 0)
4267 object
= od
[0].od_object
;
4270 * Add entries to this ZAP and make sure it spills over
4271 * and gets upgraded to a fatzap. Also, since we are adding
4272 * 2050 entries we should see ptrtbl growth and leaf-block split.
4274 for (int i
= 0; i
< 2050; i
++) {
4275 char name
[ZFS_MAX_DATASET_NAME_LEN
];
4280 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4283 tx
= dmu_tx_create(os
);
4284 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4285 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4288 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4290 ASSERT(error
== 0 || error
== EEXIST
);
4297 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4299 objset_t
*os
= zd
->zd_os
;
4301 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4303 int i
, namelen
, error
;
4304 int micro
= ztest_random(2);
4305 char name
[20], string_value
[20];
4308 ztest_od_init(&od
[0], ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0);
4310 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
4313 object
= od
[0].od_object
;
4316 * Generate a random name of the form 'xxx.....' where each
4317 * x is a random printable character and the dots are dots.
4318 * There are 94 such characters, and the name length goes from
4319 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4321 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4323 for (i
= 0; i
< 3; i
++)
4324 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4325 for (; i
< namelen
- 1; i
++)
4329 if ((namelen
& 1) || micro
) {
4330 wsize
= sizeof (txg
);
4336 data
= string_value
;
4340 VERIFY0(zap_count(os
, object
, &count
));
4341 ASSERT(count
!= -1ULL);
4344 * Select an operation: length, lookup, add, update, remove.
4346 i
= ztest_random(5);
4349 tx
= dmu_tx_create(os
);
4350 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4351 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4354 bcopy(name
, string_value
, namelen
);
4358 bzero(string_value
, namelen
);
4364 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4366 ASSERT3U(wsize
, ==, zl_wsize
);
4367 ASSERT3U(wc
, ==, zl_wc
);
4369 ASSERT3U(error
, ==, ENOENT
);
4374 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4376 if (data
== string_value
&&
4377 bcmp(name
, data
, namelen
) != 0)
4378 fatal(0, "name '%s' != val '%s' len %d",
4379 name
, data
, namelen
);
4381 ASSERT3U(error
, ==, ENOENT
);
4386 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4387 ASSERT(error
== 0 || error
== EEXIST
);
4391 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4395 error
= zap_remove(os
, object
, name
, tx
);
4396 ASSERT(error
== 0 || error
== ENOENT
);
4405 * Commit callback data.
4407 typedef struct ztest_cb_data
{
4408 list_node_t zcd_node
;
4410 int zcd_expected_err
;
4411 boolean_t zcd_added
;
4412 boolean_t zcd_called
;
4416 /* This is the actual commit callback function */
4418 ztest_commit_callback(void *arg
, int error
)
4420 ztest_cb_data_t
*data
= arg
;
4421 uint64_t synced_txg
;
4423 VERIFY(data
!= NULL
);
4424 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4425 VERIFY(!data
->zcd_called
);
4427 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4428 if (data
->zcd_txg
> synced_txg
)
4429 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4430 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4433 data
->zcd_called
= B_TRUE
;
4435 if (error
== ECANCELED
) {
4436 ASSERT0(data
->zcd_txg
);
4437 ASSERT(!data
->zcd_added
);
4440 * The private callback data should be destroyed here, but
4441 * since we are going to check the zcd_called field after
4442 * dmu_tx_abort(), we will destroy it there.
4447 /* Was this callback added to the global callback list? */
4448 if (!data
->zcd_added
)
4451 ASSERT3U(data
->zcd_txg
, !=, 0);
4453 /* Remove our callback from the list */
4454 (void) mutex_lock(&zcl
.zcl_callbacks_lock
);
4455 list_remove(&zcl
.zcl_callbacks
, data
);
4456 (void) mutex_unlock(&zcl
.zcl_callbacks_lock
);
4459 umem_free(data
, sizeof (ztest_cb_data_t
));
4462 /* Allocate and initialize callback data structure */
4463 static ztest_cb_data_t
*
4464 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4466 ztest_cb_data_t
*cb_data
;
4468 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4470 cb_data
->zcd_txg
= txg
;
4471 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4477 * If a number of txgs equal to this threshold have been created after a commit
4478 * callback has been registered but not called, then we assume there is an
4479 * implementation bug.
4481 #define ZTEST_COMMIT_CALLBACK_THRESH (TXG_CONCURRENT_STATES + 2)
4484 * Commit callback test.
4487 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4489 objset_t
*os
= zd
->zd_os
;
4492 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4493 uint64_t old_txg
, txg
;
4496 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4498 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
4501 tx
= dmu_tx_create(os
);
4503 cb_data
[0] = ztest_create_cb_data(os
, 0);
4504 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4506 dmu_tx_hold_write(tx
, od
[0].od_object
, 0, sizeof (uint64_t));
4508 /* Every once in a while, abort the transaction on purpose */
4509 if (ztest_random(100) == 0)
4513 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4515 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4517 cb_data
[0]->zcd_txg
= txg
;
4518 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4519 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4523 * It's not a strict requirement to call the registered
4524 * callbacks from inside dmu_tx_abort(), but that's what
4525 * it's supposed to happen in the current implementation
4526 * so we will check for that.
4528 for (i
= 0; i
< 2; i
++) {
4529 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4530 VERIFY(!cb_data
[i
]->zcd_called
);
4535 for (i
= 0; i
< 2; i
++) {
4536 VERIFY(cb_data
[i
]->zcd_called
);
4537 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4543 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4544 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4547 * Read existing data to make sure there isn't a future leak.
4549 VERIFY(0 == dmu_read(os
, od
[0].od_object
, 0, sizeof (uint64_t),
4550 &old_txg
, DMU_READ_PREFETCH
));
4553 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4556 dmu_write(os
, od
[0].od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4558 (void) mutex_lock(&zcl
.zcl_callbacks_lock
);
4561 * Since commit callbacks don't have any ordering requirement and since
4562 * it is theoretically possible for a commit callback to be called
4563 * after an arbitrary amount of time has elapsed since its txg has been
4564 * synced, it is difficult to reliably determine whether a commit
4565 * callback hasn't been called due to high load or due to a flawed
4568 * In practice, we will assume that if after a certain number of txgs a
4569 * commit callback hasn't been called, then most likely there's an
4570 * implementation bug..
4572 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4573 if (tmp_cb
!= NULL
&&
4574 (txg
- ZTEST_COMMIT_CALLBACK_THRESH
) > tmp_cb
->zcd_txg
) {
4575 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4576 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4580 * Let's find the place to insert our callbacks.
4582 * Even though the list is ordered by txg, it is possible for the
4583 * insertion point to not be the end because our txg may already be
4584 * quiescing at this point and other callbacks in the open txg
4585 * (from other objsets) may have sneaked in.
4587 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4588 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4589 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4591 /* Add the 3 callbacks to the list */
4592 for (i
= 0; i
< 3; i
++) {
4594 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4596 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4599 cb_data
[i
]->zcd_added
= B_TRUE
;
4600 VERIFY(!cb_data
[i
]->zcd_called
);
4602 tmp_cb
= cb_data
[i
];
4605 (void) mutex_unlock(&zcl
.zcl_callbacks_lock
);
4612 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4614 zfs_prop_t proplist
[] = {
4616 ZFS_PROP_COMPRESSION
,
4621 (void) rw_rdlock(&ztest_name_lock
);
4623 for (int p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
4624 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
4625 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
4627 (void) rw_unlock(&ztest_name_lock
);
4632 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4634 nvlist_t
*props
= NULL
;
4636 (void) rw_rdlock(&ztest_name_lock
);
4638 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
4639 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
4641 VERIFY0(spa_prop_get(ztest_spa
, &props
));
4643 if (ztest_opts
.zo_verbose
>= 6)
4644 dump_nvlist(props
, 4);
4648 (void) rw_unlock(&ztest_name_lock
);
4652 user_release_one(const char *snapname
, const char *holdname
)
4654 nvlist_t
*snaps
, *holds
;
4657 snaps
= fnvlist_alloc();
4658 holds
= fnvlist_alloc();
4659 fnvlist_add_boolean(holds
, holdname
);
4660 fnvlist_add_nvlist(snaps
, snapname
, holds
);
4661 fnvlist_free(holds
);
4662 error
= dsl_dataset_user_release(snaps
, NULL
);
4663 fnvlist_free(snaps
);
4668 * Test snapshot hold/release and deferred destroy.
4671 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
4674 objset_t
*os
= zd
->zd_os
;
4678 char clonename
[100];
4680 char osname
[ZFS_MAX_DATASET_NAME_LEN
];
4683 (void) rw_rdlock(&ztest_name_lock
);
4685 dmu_objset_name(os
, osname
);
4687 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu", id
);
4688 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
4689 (void) snprintf(clonename
, sizeof (clonename
),
4690 "%s/ch1_%llu", osname
, id
);
4691 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", id
);
4694 * Clean up from any previous run.
4696 error
= dsl_destroy_head(clonename
);
4697 if (error
!= ENOENT
)
4699 error
= user_release_one(fullname
, tag
);
4700 if (error
!= ESRCH
&& error
!= ENOENT
)
4702 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4703 if (error
!= ENOENT
)
4707 * Create snapshot, clone it, mark snap for deferred destroy,
4708 * destroy clone, verify snap was also destroyed.
4710 error
= dmu_objset_snapshot_one(osname
, snapname
);
4712 if (error
== ENOSPC
) {
4713 ztest_record_enospc("dmu_objset_snapshot");
4716 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4719 error
= dmu_objset_clone(clonename
, fullname
);
4721 if (error
== ENOSPC
) {
4722 ztest_record_enospc("dmu_objset_clone");
4725 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
4728 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4730 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4734 error
= dsl_destroy_head(clonename
);
4736 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
4738 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
4739 if (error
!= ENOENT
)
4740 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
4743 * Create snapshot, add temporary hold, verify that we can't
4744 * destroy a held snapshot, mark for deferred destroy,
4745 * release hold, verify snapshot was destroyed.
4747 error
= dmu_objset_snapshot_one(osname
, snapname
);
4749 if (error
== ENOSPC
) {
4750 ztest_record_enospc("dmu_objset_snapshot");
4753 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4756 holds
= fnvlist_alloc();
4757 fnvlist_add_string(holds
, fullname
, tag
);
4758 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
4759 fnvlist_free(holds
);
4761 if (error
== ENOSPC
) {
4762 ztest_record_enospc("dsl_dataset_user_hold");
4765 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
4766 fullname
, tag
, error
);
4769 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4770 if (error
!= EBUSY
) {
4771 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
4775 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4777 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4781 error
= user_release_one(fullname
, tag
);
4783 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
4785 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
4788 (void) rw_unlock(&ztest_name_lock
);
4792 * Inject random faults into the on-disk data.
4796 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
4798 ztest_shared_t
*zs
= ztest_shared
;
4799 spa_t
*spa
= ztest_spa
;
4803 uint64_t bad
= 0x1990c0ffeedecade;
4805 char path0
[MAXPATHLEN
];
4806 char pathrand
[MAXPATHLEN
];
4808 int bshift
= SPA_MAXBLOCKSHIFT
+ 2;
4814 boolean_t islog
= B_FALSE
;
4816 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
4817 maxfaults
= MAXFAULTS();
4818 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
4819 mirror_save
= zs
->zs_mirrors
;
4820 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
4822 ASSERT(leaves
>= 1);
4825 * Grab the name lock as reader. There are some operations
4826 * which don't like to have their vdevs changed while
4827 * they are in progress (i.e. spa_change_guid). Those
4828 * operations will have grabbed the name lock as writer.
4830 (void) rw_rdlock(&ztest_name_lock
);
4833 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4835 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
4837 if (ztest_random(2) == 0) {
4839 * Inject errors on a normal data device or slog device.
4841 top
= ztest_random_vdev_top(spa
, B_TRUE
);
4842 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
4845 * Generate paths to the first leaf in this top-level vdev,
4846 * and to the random leaf we selected. We'll induce transient
4847 * write failures and random online/offline activity on leaf 0,
4848 * and we'll write random garbage to the randomly chosen leaf.
4850 (void) snprintf(path0
, sizeof (path0
), ztest_dev_template
,
4851 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4852 top
* leaves
+ zs
->zs_splits
);
4853 (void) snprintf(pathrand
, sizeof (pathrand
), ztest_dev_template
,
4854 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
4855 top
* leaves
+ leaf
);
4857 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
4858 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
4862 * If the top-level vdev needs to be resilvered
4863 * then we only allow faults on the device that is
4866 if (vd0
!= NULL
&& maxfaults
!= 1 &&
4867 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
4868 vd0
->vdev_resilver_txg
!= 0)) {
4870 * Make vd0 explicitly claim to be unreadable,
4871 * or unwriteable, or reach behind its back
4872 * and close the underlying fd. We can do this if
4873 * maxfaults == 0 because we'll fail and reexecute,
4874 * and we can do it if maxfaults >= 2 because we'll
4875 * have enough redundancy. If maxfaults == 1, the
4876 * combination of this with injection of random data
4877 * corruption below exceeds the pool's fault tolerance.
4879 vdev_file_t
*vf
= vd0
->vdev_tsd
;
4881 if (vf
!= NULL
&& ztest_random(3) == 0) {
4882 (void) close(vf
->vf_vnode
->v_fd
);
4883 vf
->vf_vnode
->v_fd
= -1;
4884 } else if (ztest_random(2) == 0) {
4885 vd0
->vdev_cant_read
= B_TRUE
;
4887 vd0
->vdev_cant_write
= B_TRUE
;
4889 guid0
= vd0
->vdev_guid
;
4893 * Inject errors on an l2cache device.
4895 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
4897 if (sav
->sav_count
== 0) {
4898 spa_config_exit(spa
, SCL_STATE
, FTAG
);
4899 (void) rw_unlock(&ztest_name_lock
);
4902 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
4903 guid0
= vd0
->vdev_guid
;
4904 (void) strcpy(path0
, vd0
->vdev_path
);
4905 (void) strcpy(pathrand
, vd0
->vdev_path
);
4909 maxfaults
= INT_MAX
; /* no limit on cache devices */
4912 spa_config_exit(spa
, SCL_STATE
, FTAG
);
4913 (void) rw_unlock(&ztest_name_lock
);
4916 * If we can tolerate two or more faults, or we're dealing
4917 * with a slog, randomly online/offline vd0.
4919 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
4920 if (ztest_random(10) < 6) {
4921 int flags
= (ztest_random(2) == 0 ?
4922 ZFS_OFFLINE_TEMPORARY
: 0);
4925 * We have to grab the zs_name_lock as writer to
4926 * prevent a race between offlining a slog and
4927 * destroying a dataset. Offlining the slog will
4928 * grab a reference on the dataset which may cause
4929 * dmu_objset_destroy() to fail with EBUSY thus
4930 * leaving the dataset in an inconsistent state.
4933 (void) rw_wrlock(&ztest_name_lock
);
4935 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
4938 (void) rw_unlock(&ztest_name_lock
);
4941 * Ideally we would like to be able to randomly
4942 * call vdev_[on|off]line without holding locks
4943 * to force unpredictable failures but the side
4944 * effects of vdev_[on|off]line prevent us from
4945 * doing so. We grab the ztest_vdev_lock here to
4946 * prevent a race between injection testing and
4949 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
4950 (void) vdev_online(spa
, guid0
, 0, NULL
);
4951 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
4959 * We have at least single-fault tolerance, so inject data corruption.
4961 fd
= open(pathrand
, O_RDWR
);
4963 if (fd
== -1) /* we hit a gap in the device namespace */
4966 fsize
= lseek(fd
, 0, SEEK_END
);
4968 while (--iters
!= 0) {
4970 * The offset must be chosen carefully to ensure that
4971 * we do not inject a given logical block with errors
4972 * on two different leaf devices, because ZFS can not
4973 * tolerate that (if maxfaults==1).
4975 * We divide each leaf into chunks of size
4976 * (# leaves * SPA_MAXBLOCKSIZE * 4). Within each chunk
4977 * there is a series of ranges to which we can inject errors.
4978 * Each range can accept errors on only a single leaf vdev.
4979 * The error injection ranges are separated by ranges
4980 * which we will not inject errors on any device (DMZs).
4981 * Each DMZ must be large enough such that a single block
4982 * can not straddle it, so that a single block can not be
4983 * a target in two different injection ranges (on different
4986 * For example, with 3 leaves, each chunk looks like:
4987 * 0 to 32M: injection range for leaf 0
4988 * 32M to 64M: DMZ - no injection allowed
4989 * 64M to 96M: injection range for leaf 1
4990 * 96M to 128M: DMZ - no injection allowed
4991 * 128M to 160M: injection range for leaf 2
4992 * 160M to 192M: DMZ - no injection allowed
4994 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
4995 (leaves
<< bshift
) + (leaf
<< bshift
) +
4996 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
4999 * Only allow damage to the labels at one end of the vdev.
5001 * If all labels are damaged, the device will be totally
5002 * inaccessible, which will result in loss of data,
5003 * because we also damage (parts of) the other side of
5006 * Additionally, we will always have both an even and an
5007 * odd label, so that we can handle crashes in the
5008 * middle of vdev_config_sync().
5010 if ((leaf
& 1) == 0 && offset
< VDEV_LABEL_START_SIZE
)
5014 * The two end labels are stored at the "end" of the disk, but
5015 * the end of the disk (vdev_psize) is aligned to
5016 * sizeof (vdev_label_t).
5018 uint64_t psize
= P2ALIGN(fsize
, sizeof (vdev_label_t
));
5019 if ((leaf
& 1) == 1 &&
5020 offset
+ sizeof (bad
) > psize
- VDEV_LABEL_END_SIZE
)
5023 VERIFY(mutex_lock(&ztest_vdev_lock
) == 0);
5024 if (mirror_save
!= zs
->zs_mirrors
) {
5025 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
5030 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
5031 fatal(1, "can't inject bad word at 0x%llx in %s",
5034 VERIFY(mutex_unlock(&ztest_vdev_lock
) == 0);
5036 if (ztest_opts
.zo_verbose
>= 7)
5037 (void) printf("injected bad word into %s,"
5038 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
5045 * Verify that DDT repair works as expected.
5048 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
5050 ztest_shared_t
*zs
= ztest_shared
;
5051 spa_t
*spa
= ztest_spa
;
5052 objset_t
*os
= zd
->zd_os
;
5054 uint64_t object
, blocksize
, txg
, pattern
, psize
;
5055 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
5060 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
5062 blocksize
= ztest_random_blocksize();
5063 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
5065 ztest_od_init(&od
[0], id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
5067 if (ztest_object_init(zd
, od
, sizeof (od
), B_FALSE
) != 0)
5071 * Take the name lock as writer to prevent anyone else from changing
5072 * the pool and dataset properies we need to maintain during this test.
5074 (void) rw_wrlock(&ztest_name_lock
);
5076 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
5078 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
5080 (void) rw_unlock(&ztest_name_lock
);
5084 dmu_objset_stats_t dds
;
5085 dsl_pool_config_enter(dmu_objset_pool(os
), FTAG
);
5086 dmu_objset_fast_stat(os
, &dds
);
5087 dsl_pool_config_exit(dmu_objset_pool(os
), FTAG
);
5089 object
= od
[0].od_object
;
5090 blocksize
= od
[0].od_blocksize
;
5091 pattern
= zs
->zs_guid
^ dds
.dds_guid
;
5093 ASSERT(object
!= 0);
5095 tx
= dmu_tx_create(os
);
5096 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
5097 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
5099 (void) rw_unlock(&ztest_name_lock
);
5104 * Write all the copies of our block.
5106 for (int i
= 0; i
< copies
; i
++) {
5107 uint64_t offset
= i
* blocksize
;
5108 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
5109 DMU_READ_NO_PREFETCH
);
5111 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
5112 os
, (long long)object
, (long long) offset
, error
);
5114 ASSERT(db
->db_offset
== offset
);
5115 ASSERT(db
->db_size
== blocksize
);
5116 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5117 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5118 dmu_buf_will_fill(db
, tx
);
5119 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5120 dmu_buf_rele(db
, FTAG
);
5124 txg_wait_synced(spa_get_dsl(spa
), txg
);
5127 * Find out what block we got.
5129 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5130 DMU_READ_NO_PREFETCH
));
5131 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5132 dmu_buf_rele(db
, FTAG
);
5135 * Damage the block. Dedup-ditto will save us when we read it later.
5137 psize
= BP_GET_PSIZE(&blk
);
5138 abd
= abd_alloc_linear(psize
, B_TRUE
);
5139 ztest_pattern_set(abd_to_buf(abd
), psize
, ~pattern
);
5141 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5142 abd
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5143 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5147 (void) rw_unlock(&ztest_name_lock
);
5155 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5157 spa_t
*spa
= ztest_spa
;
5159 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5160 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5161 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5165 * Change the guid for the pool.
5169 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5171 spa_t
*spa
= ztest_spa
;
5172 uint64_t orig
, load
;
5175 orig
= spa_guid(spa
);
5176 load
= spa_load_guid(spa
);
5178 (void) rw_wrlock(&ztest_name_lock
);
5179 error
= spa_change_guid(spa
);
5180 (void) rw_unlock(&ztest_name_lock
);
5185 if (ztest_opts
.zo_verbose
>= 4) {
5186 (void) printf("Changed guid old %llu -> %llu\n",
5187 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5190 VERIFY3U(orig
, !=, spa_guid(spa
));
5191 VERIFY3U(load
, ==, spa_load_guid(spa
));
5195 * Rename the pool to a different name and then rename it back.
5199 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5201 char *oldname
, *newname
;
5204 (void) rw_wrlock(&ztest_name_lock
);
5206 oldname
= ztest_opts
.zo_pool
;
5207 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5208 (void) strcpy(newname
, oldname
);
5209 (void) strcat(newname
, "_tmp");
5214 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5217 * Try to open it under the old name, which shouldn't exist
5219 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5222 * Open it under the new name and make sure it's still the same spa_t.
5224 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5226 ASSERT(spa
== ztest_spa
);
5227 spa_close(spa
, FTAG
);
5230 * Rename it back to the original
5232 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5235 * Make sure it can still be opened
5237 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5239 ASSERT(spa
== ztest_spa
);
5240 spa_close(spa
, FTAG
);
5242 umem_free(newname
, strlen(newname
) + 1);
5244 (void) rw_unlock(&ztest_name_lock
);
5248 * Verify pool integrity by running zdb.
5251 ztest_run_zdb(char *pool
)
5254 char zdb
[MAXPATHLEN
+ MAXNAMELEN
+ 20];
5262 (void) realpath(getexecname(), zdb
);
5264 /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
5265 bin
= strstr(zdb
, "/usr/bin/");
5266 ztest
= strstr(bin
, "/ztest");
5268 isalen
= ztest
- isa
;
5272 "/usr/sbin%.*s/zdb -bcc%s%s -G -d -U %s %s",
5275 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5276 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5281 if (ztest_opts
.zo_verbose
>= 5)
5282 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5284 fp
= popen(zdb
, "r");
5286 while (fgets(zbuf
, sizeof (zbuf
), fp
) != NULL
)
5287 if (ztest_opts
.zo_verbose
>= 3)
5288 (void) printf("%s", zbuf
);
5290 status
= pclose(fp
);
5295 ztest_dump_core
= 0;
5296 if (WIFEXITED(status
))
5297 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5299 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5303 ztest_walk_pool_directory(char *header
)
5307 if (ztest_opts
.zo_verbose
>= 6)
5308 (void) printf("%s\n", header
);
5310 mutex_enter(&spa_namespace_lock
);
5311 while ((spa
= spa_next(spa
)) != NULL
)
5312 if (ztest_opts
.zo_verbose
>= 6)
5313 (void) printf("\t%s\n", spa_name(spa
));
5314 mutex_exit(&spa_namespace_lock
);
5318 ztest_spa_import_export(char *oldname
, char *newname
)
5320 nvlist_t
*config
, *newconfig
;
5325 if (ztest_opts
.zo_verbose
>= 4) {
5326 (void) printf("import/export: old = %s, new = %s\n",
5331 * Clean up from previous runs.
5333 (void) spa_destroy(newname
);
5336 * Get the pool's configuration and guid.
5338 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5341 * Kick off a scrub to tickle scrub/export races.
5343 if (ztest_random(2) == 0)
5344 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5346 pool_guid
= spa_guid(spa
);
5347 spa_close(spa
, FTAG
);
5349 ztest_walk_pool_directory("pools before export");
5354 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
5356 ztest_walk_pool_directory("pools after export");
5361 newconfig
= spa_tryimport(config
);
5362 ASSERT(newconfig
!= NULL
);
5363 nvlist_free(newconfig
);
5366 * Import it under the new name.
5368 error
= spa_import(newname
, config
, NULL
, 0);
5370 dump_nvlist(config
, 0);
5371 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
5372 oldname
, newname
, error
);
5375 ztest_walk_pool_directory("pools after import");
5378 * Try to import it again -- should fail with EEXIST.
5380 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
5383 * Try to import it under a different name -- should fail with EEXIST.
5385 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
5388 * Verify that the pool is no longer visible under the old name.
5390 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5393 * Verify that we can open and close the pool using the new name.
5395 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5396 ASSERT(pool_guid
== spa_guid(spa
));
5397 spa_close(spa
, FTAG
);
5399 nvlist_free(config
);
5403 ztest_resume(spa_t
*spa
)
5405 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
5406 (void) printf("resuming from suspended state\n");
5407 spa_vdev_state_enter(spa
, SCL_NONE
);
5408 vdev_clear(spa
, NULL
);
5409 (void) spa_vdev_state_exit(spa
, NULL
, 0);
5410 (void) zio_resume(spa
);
5414 ztest_resume_thread(void *arg
)
5418 while (!ztest_exiting
) {
5419 if (spa_suspended(spa
))
5421 (void) poll(NULL
, 0, 100);
5424 * Periodically change the zfs_compressed_arc_enabled setting.
5426 if (ztest_random(10) == 0)
5427 zfs_compressed_arc_enabled
= ztest_random(2);
5430 * Periodically change the zfs_abd_scatter_enabled setting.
5432 if (ztest_random(10) == 0)
5433 zfs_abd_scatter_enabled
= ztest_random(2);
5439 ztest_deadman_thread(void *arg
)
5441 ztest_shared_t
*zs
= arg
;
5442 spa_t
*spa
= ztest_spa
;
5443 hrtime_t delta
, total
= 0;
5446 delta
= zs
->zs_thread_stop
- zs
->zs_thread_start
+
5447 MSEC2NSEC(zfs_deadman_synctime_ms
);
5449 (void) poll(NULL
, 0, (int)NSEC2MSEC(delta
));
5452 * If the pool is suspended then fail immediately. Otherwise,
5453 * check to see if the pool is making any progress. If
5454 * vdev_deadman() discovers that there hasn't been any recent
5455 * I/Os then it will end up aborting the tests.
5457 if (spa_suspended(spa
) || spa
->spa_root_vdev
== NULL
) {
5458 fatal(0, "aborting test after %llu seconds because "
5459 "pool has transitioned to a suspended state.",
5460 zfs_deadman_synctime_ms
/ 1000);
5463 vdev_deadman(spa
->spa_root_vdev
);
5465 total
+= zfs_deadman_synctime_ms
/1000;
5466 (void) printf("ztest has been running for %lld seconds\n",
5472 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
5474 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
5475 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
5476 hrtime_t functime
= gethrtime();
5478 for (int i
= 0; i
< zi
->zi_iters
; i
++)
5479 zi
->zi_func(zd
, id
);
5481 functime
= gethrtime() - functime
;
5483 atomic_add_64(&zc
->zc_count
, 1);
5484 atomic_add_64(&zc
->zc_time
, functime
);
5486 if (ztest_opts
.zo_verbose
>= 4) {
5488 (void) dladdr((void *)zi
->zi_func
, &dli
);
5489 (void) printf("%6.2f sec in %s\n",
5490 (double)functime
/ NANOSEC
, dli
.dli_sname
);
5495 ztest_thread(void *arg
)
5498 uint64_t id
= (uintptr_t)arg
;
5499 ztest_shared_t
*zs
= ztest_shared
;
5503 ztest_shared_callstate_t
*zc
;
5505 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
5507 * See if it's time to force a crash.
5509 if (now
> zs
->zs_thread_kill
)
5513 * If we're getting ENOSPC with some regularity, stop.
5515 if (zs
->zs_enospc_count
> 10)
5519 * Pick a random function to execute.
5521 rand
= ztest_random(ZTEST_FUNCS
);
5522 zi
= &ztest_info
[rand
];
5523 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
5524 call_next
= zc
->zc_next
;
5526 if (now
>= call_next
&&
5527 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
5528 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
5529 ztest_execute(rand
, zi
, id
);
5537 ztest_dataset_name(char *dsname
, char *pool
, int d
)
5539 (void) snprintf(dsname
, ZFS_MAX_DATASET_NAME_LEN
, "%s/ds_%d", pool
, d
);
5543 ztest_dataset_destroy(int d
)
5545 char name
[ZFS_MAX_DATASET_NAME_LEN
];
5547 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5549 if (ztest_opts
.zo_verbose
>= 3)
5550 (void) printf("Destroying %s to free up space\n", name
);
5553 * Cleanup any non-standard clones and snapshots. In general,
5554 * ztest thread t operates on dataset (t % zopt_datasets),
5555 * so there may be more than one thing to clean up.
5557 for (int t
= d
; t
< ztest_opts
.zo_threads
;
5558 t
+= ztest_opts
.zo_datasets
) {
5559 ztest_dsl_dataset_cleanup(name
, t
);
5562 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
5563 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
5567 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
5569 uint64_t usedobjs
, dirobjs
, scratch
;
5572 * ZTEST_DIROBJ is the object directory for the entire dataset.
5573 * Therefore, the number of objects in use should equal the
5574 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5575 * If not, we have an object leak.
5577 * Note that we can only check this in ztest_dataset_open(),
5578 * when the open-context and syncing-context values agree.
5579 * That's because zap_count() returns the open-context value,
5580 * while dmu_objset_space() returns the rootbp fill count.
5582 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
5583 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
5584 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
5588 ztest_dataset_open(int d
)
5590 ztest_ds_t
*zd
= &ztest_ds
[d
];
5591 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
5594 char name
[ZFS_MAX_DATASET_NAME_LEN
];
5597 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5599 (void) rw_rdlock(&ztest_name_lock
);
5601 error
= ztest_dataset_create(name
);
5602 if (error
== ENOSPC
) {
5603 (void) rw_unlock(&ztest_name_lock
);
5604 ztest_record_enospc(FTAG
);
5607 ASSERT(error
== 0 || error
== EEXIST
);
5609 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, zd
, &os
));
5610 (void) rw_unlock(&ztest_name_lock
);
5612 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
5614 zilog
= zd
->zd_zilog
;
5616 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
5617 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
5618 fatal(0, "missing log records: claimed %llu < committed %llu",
5619 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
5621 ztest_dataset_dirobj_verify(zd
);
5623 zil_replay(os
, zd
, ztest_replay_vector
);
5625 ztest_dataset_dirobj_verify(zd
);
5627 if (ztest_opts
.zo_verbose
>= 6)
5628 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5630 (u_longlong_t
)zilog
->zl_parse_blk_count
,
5631 (u_longlong_t
)zilog
->zl_parse_lr_count
,
5632 (u_longlong_t
)zilog
->zl_replaying_seq
);
5634 zilog
= zil_open(os
, ztest_get_data
);
5636 if (zilog
->zl_replaying_seq
!= 0 &&
5637 zilog
->zl_replaying_seq
< committed_seq
)
5638 fatal(0, "missing log records: replayed %llu < committed %llu",
5639 zilog
->zl_replaying_seq
, committed_seq
);
5645 ztest_dataset_close(int d
)
5647 ztest_ds_t
*zd
= &ztest_ds
[d
];
5649 zil_close(zd
->zd_zilog
);
5650 dmu_objset_disown(zd
->zd_os
, zd
);
5656 * Kick off threads to run tests on all datasets in parallel.
5659 ztest_run(ztest_shared_t
*zs
)
5664 thread_t resume_tid
;
5667 ztest_exiting
= B_FALSE
;
5670 * Initialize parent/child shared state.
5672 VERIFY(_mutex_init(&ztest_vdev_lock
, USYNC_THREAD
, NULL
) == 0);
5673 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
5675 zs
->zs_thread_start
= gethrtime();
5676 zs
->zs_thread_stop
=
5677 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
5678 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
5679 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
5680 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
5681 zs
->zs_thread_kill
-=
5682 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
5685 (void) _mutex_init(&zcl
.zcl_callbacks_lock
, USYNC_THREAD
, NULL
);
5687 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
5688 offsetof(ztest_cb_data_t
, zcd_node
));
5693 kernel_init(FREAD
| FWRITE
);
5694 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5695 spa
->spa_debug
= B_TRUE
;
5696 metaslab_preload_limit
= ztest_random(20) + 1;
5699 dmu_objset_stats_t dds
;
5700 VERIFY0(dmu_objset_own(ztest_opts
.zo_pool
,
5701 DMU_OST_ANY
, B_TRUE
, FTAG
, &os
));
5702 dsl_pool_config_enter(dmu_objset_pool(os
), FTAG
);
5703 dmu_objset_fast_stat(os
, &dds
);
5704 dsl_pool_config_exit(dmu_objset_pool(os
), FTAG
);
5705 zs
->zs_guid
= dds
.dds_guid
;
5706 dmu_objset_disown(os
, FTAG
);
5708 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
5711 * We don't expect the pool to suspend unless maxfaults == 0,
5712 * in which case ztest_fault_inject() temporarily takes away
5713 * the only valid replica.
5715 if (MAXFAULTS() == 0)
5716 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
5718 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
5721 * Create a thread to periodically resume suspended I/O.
5723 VERIFY(thr_create(0, 0, ztest_resume_thread
, spa
, THR_BOUND
,
5727 * Create a deadman thread to abort() if we hang.
5729 VERIFY(thr_create(0, 0, ztest_deadman_thread
, zs
, THR_BOUND
,
5733 * Verify that we can safely inquire about about any object,
5734 * whether it's allocated or not. To make it interesting,
5735 * we probe a 5-wide window around each power of two.
5736 * This hits all edge cases, including zero and the max.
5738 for (int t
= 0; t
< 64; t
++) {
5739 for (int d
= -5; d
<= 5; d
++) {
5740 error
= dmu_object_info(spa
->spa_meta_objset
,
5741 (1ULL << t
) + d
, NULL
);
5742 ASSERT(error
== 0 || error
== ENOENT
||
5748 * If we got any ENOSPC errors on the previous run, destroy something.
5750 if (zs
->zs_enospc_count
!= 0) {
5751 int d
= ztest_random(ztest_opts
.zo_datasets
);
5752 ztest_dataset_destroy(d
);
5754 zs
->zs_enospc_count
= 0;
5756 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (thread_t
),
5759 if (ztest_opts
.zo_verbose
>= 4)
5760 (void) printf("starting main threads...\n");
5763 * Kick off all the tests that run in parallel.
5765 for (int t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
5766 if (t
< ztest_opts
.zo_datasets
&&
5767 ztest_dataset_open(t
) != 0)
5769 VERIFY(thr_create(0, 0, ztest_thread
, (void *)(uintptr_t)t
,
5770 THR_BOUND
, &tid
[t
]) == 0);
5774 * Wait for all of the tests to complete. We go in reverse order
5775 * so we don't close datasets while threads are still using them.
5777 for (int t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
5778 VERIFY(thr_join(tid
[t
], NULL
, NULL
) == 0);
5779 if (t
< ztest_opts
.zo_datasets
)
5780 ztest_dataset_close(t
);
5783 txg_wait_synced(spa_get_dsl(spa
), 0);
5785 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
5786 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
5787 zfs_dbgmsg_print(FTAG
);
5789 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (thread_t
));
5791 /* Kill the resume thread */
5792 ztest_exiting
= B_TRUE
;
5793 VERIFY(thr_join(resume_tid
, NULL
, NULL
) == 0);
5797 * Right before closing the pool, kick off a bunch of async I/O;
5798 * spa_close() should wait for it to complete.
5800 for (uint64_t object
= 1; object
< 50; object
++) {
5801 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 0, 1ULL << 20,
5802 ZIO_PRIORITY_SYNC_READ
);
5805 spa_close(spa
, FTAG
);
5808 * Verify that we can loop over all pools.
5810 mutex_enter(&spa_namespace_lock
);
5811 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
5812 if (ztest_opts
.zo_verbose
> 3)
5813 (void) printf("spa_next: found %s\n", spa_name(spa
));
5814 mutex_exit(&spa_namespace_lock
);
5817 * Verify that we can export the pool and reimport it under a
5820 if (ztest_random(2) == 0) {
5821 char name
[ZFS_MAX_DATASET_NAME_LEN
];
5822 (void) snprintf(name
, sizeof (name
), "%s_import",
5823 ztest_opts
.zo_pool
);
5824 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
5825 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
5830 list_destroy(&zcl
.zcl_callbacks
);
5832 (void) _mutex_destroy(&zcl
.zcl_callbacks_lock
);
5834 (void) rwlock_destroy(&ztest_name_lock
);
5835 (void) _mutex_destroy(&ztest_vdev_lock
);
5841 ztest_ds_t
*zd
= &ztest_ds
[0];
5845 if (ztest_opts
.zo_verbose
>= 3)
5846 (void) printf("testing spa_freeze()...\n");
5848 kernel_init(FREAD
| FWRITE
);
5849 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5850 VERIFY3U(0, ==, ztest_dataset_open(0));
5851 spa
->spa_debug
= B_TRUE
;
5855 * Force the first log block to be transactionally allocated.
5856 * We have to do this before we freeze the pool -- otherwise
5857 * the log chain won't be anchored.
5859 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
5860 ztest_dmu_object_alloc_free(zd
, 0);
5861 zil_commit(zd
->zd_zilog
, 0);
5864 txg_wait_synced(spa_get_dsl(spa
), 0);
5867 * Freeze the pool. This stops spa_sync() from doing anything,
5868 * so that the only way to record changes from now on is the ZIL.
5873 * Because it is hard to predict how much space a write will actually
5874 * require beforehand, we leave ourselves some fudge space to write over
5877 uint64_t capacity
= metaslab_class_get_space(spa_normal_class(spa
)) / 2;
5880 * Run tests that generate log records but don't alter the pool config
5881 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5882 * We do a txg_wait_synced() after each iteration to force the txg
5883 * to increase well beyond the last synced value in the uberblock.
5884 * The ZIL should be OK with that.
5886 * Run a random number of times less than zo_maxloops and ensure we do
5887 * not run out of space on the pool.
5889 while (ztest_random(10) != 0 &&
5890 numloops
++ < ztest_opts
.zo_maxloops
&&
5891 metaslab_class_get_alloc(spa_normal_class(spa
)) < capacity
) {
5893 ztest_od_init(&od
, 0, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
5894 VERIFY0(ztest_object_init(zd
, &od
, sizeof (od
), B_FALSE
));
5895 ztest_io(zd
, od
.od_object
,
5896 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
5897 txg_wait_synced(spa_get_dsl(spa
), 0);
5901 * Commit all of the changes we just generated.
5903 zil_commit(zd
->zd_zilog
, 0);
5904 txg_wait_synced(spa_get_dsl(spa
), 0);
5907 * Close our dataset and close the pool.
5909 ztest_dataset_close(0);
5910 spa_close(spa
, FTAG
);
5914 * Open and close the pool and dataset to induce log replay.
5916 kernel_init(FREAD
| FWRITE
);
5917 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5918 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
5919 VERIFY3U(0, ==, ztest_dataset_open(0));
5920 ztest_dataset_close(0);
5922 spa
->spa_debug
= B_TRUE
;
5924 txg_wait_synced(spa_get_dsl(spa
), 0);
5925 ztest_reguid(NULL
, 0);
5927 spa_close(spa
, FTAG
);
5932 print_time(hrtime_t t
, char *timebuf
)
5934 hrtime_t s
= t
/ NANOSEC
;
5935 hrtime_t m
= s
/ 60;
5936 hrtime_t h
= m
/ 60;
5937 hrtime_t d
= h
/ 24;
5946 (void) sprintf(timebuf
,
5947 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
5949 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
5951 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
5953 (void) sprintf(timebuf
, "%llus", s
);
5961 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
5962 if (ztest_random(2) == 0)
5964 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
5970 * Create a storage pool with the given name and initial vdev size.
5971 * Then test spa_freeze() functionality.
5974 ztest_init(ztest_shared_t
*zs
)
5977 nvlist_t
*nvroot
, *props
;
5979 VERIFY(_mutex_init(&ztest_vdev_lock
, USYNC_THREAD
, NULL
) == 0);
5980 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
5982 kernel_init(FREAD
| FWRITE
);
5985 * Create the storage pool.
5987 (void) spa_destroy(ztest_opts
.zo_pool
);
5988 ztest_shared
->zs_vdev_next_leaf
= 0;
5990 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
5991 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
5992 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
5993 props
= make_random_props();
5994 for (int i
= 0; i
< SPA_FEATURES
; i
++) {
5996 (void) snprintf(buf
, sizeof (buf
), "feature@%s",
5997 spa_feature_table
[i
].fi_uname
);
5998 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
6000 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
));
6001 nvlist_free(nvroot
);
6004 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6005 zs
->zs_metaslab_sz
=
6006 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6008 spa_close(spa
, FTAG
);
6012 ztest_run_zdb(ztest_opts
.zo_pool
);
6016 ztest_run_zdb(ztest_opts
.zo_pool
);
6018 (void) rwlock_destroy(&ztest_name_lock
);
6019 (void) _mutex_destroy(&ztest_vdev_lock
);
6025 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
6027 ztest_fd_data
= mkstemp(ztest_name_data
);
6028 ASSERT3S(ztest_fd_data
, >=, 0);
6029 (void) unlink(ztest_name_data
);
6034 shared_data_size(ztest_shared_hdr_t
*hdr
)
6038 size
= hdr
->zh_hdr_size
;
6039 size
+= hdr
->zh_opts_size
;
6040 size
+= hdr
->zh_size
;
6041 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6042 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
6051 ztest_shared_hdr_t
*hdr
;
6053 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6054 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6055 ASSERT(hdr
!= MAP_FAILED
);
6057 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
6059 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
6060 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
6061 hdr
->zh_size
= sizeof (ztest_shared_t
);
6062 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
6063 hdr
->zh_stats_count
= ZTEST_FUNCS
;
6064 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
6065 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
6067 size
= shared_data_size(hdr
);
6068 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
6070 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6077 ztest_shared_hdr_t
*hdr
;
6080 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6081 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
6082 ASSERT(hdr
!= MAP_FAILED
);
6084 size
= shared_data_size(hdr
);
6086 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6087 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
6088 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6089 ASSERT(hdr
!= MAP_FAILED
);
6090 buf
= (uint8_t *)hdr
;
6092 offset
= hdr
->zh_hdr_size
;
6093 ztest_shared_opts
= (void *)&buf
[offset
];
6094 offset
+= hdr
->zh_opts_size
;
6095 ztest_shared
= (void *)&buf
[offset
];
6096 offset
+= hdr
->zh_size
;
6097 ztest_shared_callstate
= (void *)&buf
[offset
];
6098 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6099 ztest_shared_ds
= (void *)&buf
[offset
];
6103 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
6107 char *cmdbuf
= NULL
;
6112 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
6113 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
6118 fatal(1, "fork failed");
6120 if (pid
== 0) { /* child */
6121 char *emptyargv
[2] = { cmd
, NULL
};
6122 char fd_data_str
[12];
6124 struct rlimit rl
= { 1024, 1024 };
6125 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
6127 (void) close(ztest_fd_rand
);
6129 snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
6130 VERIFY0(setenv("ZTEST_FD_DATA", fd_data_str
, 1));
6132 (void) enable_extended_FILE_stdio(-1, -1);
6133 if (libpath
!= NULL
)
6134 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
6135 (void) execv(cmd
, emptyargv
);
6136 ztest_dump_core
= B_FALSE
;
6137 fatal(B_TRUE
, "exec failed: %s", cmd
);
6140 if (cmdbuf
!= NULL
) {
6141 umem_free(cmdbuf
, MAXPATHLEN
);
6145 while (waitpid(pid
, &status
, 0) != pid
)
6147 if (statusp
!= NULL
)
6150 if (WIFEXITED(status
)) {
6151 if (WEXITSTATUS(status
) != 0) {
6152 (void) fprintf(stderr
, "child exited with code %d\n",
6153 WEXITSTATUS(status
));
6157 } else if (WIFSIGNALED(status
)) {
6158 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6159 (void) fprintf(stderr
, "child died with signal %d\n",
6165 (void) fprintf(stderr
, "something strange happened to child\n");
6172 ztest_run_init(void)
6174 ztest_shared_t
*zs
= ztest_shared
;
6176 ASSERT(ztest_opts
.zo_init
!= 0);
6179 * Blow away any existing copy of zpool.cache
6181 (void) remove(spa_config_path
);
6184 * Create and initialize our storage pool.
6186 for (int i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6187 bzero(zs
, sizeof (ztest_shared_t
));
6188 if (ztest_opts
.zo_verbose
>= 3 &&
6189 ztest_opts
.zo_init
!= 1) {
6190 (void) printf("ztest_init(), pass %d\n", i
);
6197 main(int argc
, char **argv
)
6205 ztest_shared_callstate_t
*zc
;
6207 char numbuf
[NN_NUMBUF_SZ
];
6211 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6213 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6215 dprintf_setup(&argc
, argv
);
6216 zfs_deadman_synctime_ms
= 300000;
6218 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6219 ASSERT3S(ztest_fd_rand
, >=, 0);
6222 process_options(argc
, argv
);
6227 bcopy(&ztest_opts
, ztest_shared_opts
,
6228 sizeof (*ztest_shared_opts
));
6230 ztest_fd_data
= atoi(fd_data_str
);
6232 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6234 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6236 /* Override location of zpool.cache */
6237 VERIFY3U(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6238 ztest_opts
.zo_dir
), !=, -1);
6240 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6245 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6246 metaslab_df_alloc_threshold
=
6247 zs
->zs_metaslab_df_alloc_threshold
;
6256 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6258 if (ztest_opts
.zo_verbose
>= 1) {
6259 (void) printf("%llu vdevs, %d datasets, %d threads,"
6260 " %llu seconds...\n",
6261 (u_longlong_t
)ztest_opts
.zo_vdevs
,
6262 ztest_opts
.zo_datasets
,
6263 ztest_opts
.zo_threads
,
6264 (u_longlong_t
)ztest_opts
.zo_time
);
6267 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
6268 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
6270 zs
->zs_do_init
= B_TRUE
;
6271 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
6272 if (ztest_opts
.zo_verbose
>= 1) {
6273 (void) printf("Executing older ztest for "
6274 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
6276 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
6277 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
6279 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
6281 zs
->zs_do_init
= B_FALSE
;
6283 zs
->zs_proc_start
= gethrtime();
6284 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
6286 for (int f
= 0; f
< ZTEST_FUNCS
; f
++) {
6287 zi
= &ztest_info
[f
];
6288 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6289 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
6290 zc
->zc_next
= UINT64_MAX
;
6292 zc
->zc_next
= zs
->zs_proc_start
+
6293 ztest_random(2 * zi
->zi_interval
[0] + 1);
6297 * Run the tests in a loop. These tests include fault injection
6298 * to verify that self-healing data works, and forced crashes
6299 * to verify that we never lose on-disk consistency.
6301 while (gethrtime() < zs
->zs_proc_stop
) {
6306 * Initialize the workload counters for each function.
6308 for (int f
= 0; f
< ZTEST_FUNCS
; f
++) {
6309 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6314 /* Set the allocation switch size */
6315 zs
->zs_metaslab_df_alloc_threshold
=
6316 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
6318 if (!hasalt
|| ztest_random(2) == 0) {
6319 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6320 (void) printf("Executing newer ztest: %s\n",
6324 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
6326 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6327 (void) printf("Executing older ztest: %s\n",
6328 ztest_opts
.zo_alt_ztest
);
6331 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
6332 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
6339 if (ztest_opts
.zo_verbose
>= 1) {
6340 hrtime_t now
= gethrtime();
6342 now
= MIN(now
, zs
->zs_proc_stop
);
6343 print_time(zs
->zs_proc_stop
- now
, timebuf
);
6344 nicenum(zs
->zs_space
, numbuf
, sizeof (numbuf
));
6346 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6347 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6349 WIFEXITED(status
) ? "Complete" : "SIGKILL",
6350 (u_longlong_t
)zs
->zs_enospc_count
,
6351 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
6353 100.0 * (now
- zs
->zs_proc_start
) /
6354 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
6357 if (ztest_opts
.zo_verbose
>= 2) {
6358 (void) printf("\nWorkload summary:\n\n");
6359 (void) printf("%7s %9s %s\n",
6360 "Calls", "Time", "Function");
6361 (void) printf("%7s %9s %s\n",
6362 "-----", "----", "--------");
6363 for (int f
= 0; f
< ZTEST_FUNCS
; f
++) {
6366 zi
= &ztest_info
[f
];
6367 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6368 print_time(zc
->zc_time
, timebuf
);
6369 (void) dladdr((void *)zi
->zi_func
, &dli
);
6370 (void) printf("%7llu %9s %s\n",
6371 (u_longlong_t
)zc
->zc_count
, timebuf
,
6374 (void) printf("\n");
6378 * It's possible that we killed a child during a rename test,
6379 * in which case we'll have a 'ztest_tmp' pool lying around
6380 * instead of 'ztest'. Do a blind rename in case this happened.
6383 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
6384 spa_close(spa
, FTAG
);
6386 char tmpname
[ZFS_MAX_DATASET_NAME_LEN
];
6388 kernel_init(FREAD
| FWRITE
);
6389 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
6390 ztest_opts
.zo_pool
);
6391 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
6395 ztest_run_zdb(ztest_opts
.zo_pool
);
6398 if (ztest_opts
.zo_verbose
>= 1) {
6400 (void) printf("%d runs of older ztest: %s\n", older
,
6401 ztest_opts
.zo_alt_ztest
);
6402 (void) printf("%d runs of newer ztest: %s\n", newer
,
6405 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6406 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
6409 umem_free(cmd
, MAXNAMELEN
);