4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
29 * The objective of this program is to provide a DMU/ZAP/SPA stress test
30 * that runs entirely in userland, is easy to use, and easy to extend.
32 * The overall design of the ztest program is as follows:
34 * (1) For each major functional area (e.g. adding vdevs to a pool,
35 * creating and destroying datasets, reading and writing objects, etc)
36 * we have a simple routine to test that functionality. These
37 * individual routines do not have to do anything "stressful".
39 * (2) We turn these simple functionality tests into a stress test by
40 * running them all in parallel, with as many threads as desired,
41 * and spread across as many datasets, objects, and vdevs as desired.
43 * (3) While all this is happening, we inject faults into the pool to
44 * verify that self-healing data really works.
46 * (4) Every time we open a dataset, we change its checksum and compression
47 * functions. Thus even individual objects vary from block to block
48 * in which checksum they use and whether they're compressed.
50 * (5) To verify that we never lose on-disk consistency after a crash,
51 * we run the entire test in a child of the main process.
52 * At random times, the child self-immolates with a SIGKILL.
53 * This is the software equivalent of pulling the power cord.
54 * The parent then runs the test again, using the existing
55 * storage pool, as many times as desired. If backwards compatibility
56 * testing is enabled ztest will sometimes run the "older" version
57 * of ztest after a SIGKILL.
59 * (6) To verify that we don't have future leaks or temporal incursions,
60 * many of the functional tests record the transaction group number
61 * as part of their data. When reading old data, they verify that
62 * the transaction group number is less than the current, open txg.
63 * If you add a new test, please do this if applicable.
65 * (7) Threads are created with a reduced stack size, for sanity checking.
66 * Therefore, it's important not to allocate huge buffers on the stack.
68 * When run with no arguments, ztest runs for about five minutes and
69 * produces no output if successful. To get a little bit of information,
70 * specify -V. To get more information, specify -VV, and so on.
72 * To turn this into an overnight stress test, use -T to specify run time.
74 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
75 * to increase the pool capacity, fanout, and overall stress level.
77 * Use the -k option to set the desired frequency of kills.
79 * When ztest invokes itself it passes all relevant information through a
80 * temporary file which is mmap-ed in the child process. This allows shared
81 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
82 * stored at offset 0 of this file and contains information on the size and
83 * number of shared structures in the file. The information stored in this file
84 * must remain backwards compatible with older versions of ztest so that
85 * ztest can invoke them during backwards compatibility testing (-B).
88 #include <sys/zfs_context.h>
94 #include <sys/dmu_objset.h>
100 #include <sys/resource.h>
103 #include <sys/zil_impl.h>
104 #include <sys/vdev_impl.h>
105 #include <sys/vdev_file.h>
106 #include <sys/spa_impl.h>
107 #include <sys/metaslab_impl.h>
108 #include <sys/dsl_prop.h>
109 #include <sys/dsl_dataset.h>
110 #include <sys/dsl_destroy.h>
111 #include <sys/dsl_scan.h>
112 #include <sys/zio_checksum.h>
113 #include <sys/refcount.h>
114 #include <sys/zfeature.h>
115 #include <sys/dsl_userhold.h>
117 #include <stdio_ext.h>
125 #include <sys/fs/zfs.h>
126 #include <libnvpair.h>
128 #include <execinfo.h> /* for backtrace() */
131 static int ztest_fd_data
= -1;
132 static int ztest_fd_rand
= -1;
134 typedef struct ztest_shared_hdr
{
135 uint64_t zh_hdr_size
;
136 uint64_t zh_opts_size
;
138 uint64_t zh_stats_size
;
139 uint64_t zh_stats_count
;
141 uint64_t zh_ds_count
;
142 } ztest_shared_hdr_t
;
144 static ztest_shared_hdr_t
*ztest_shared_hdr
;
146 typedef struct ztest_shared_opts
{
147 char zo_pool
[MAXNAMELEN
];
148 char zo_dir
[MAXNAMELEN
];
149 char zo_alt_ztest
[MAXNAMELEN
];
150 char zo_alt_libpath
[MAXNAMELEN
];
152 uint64_t zo_vdevtime
;
160 uint64_t zo_passtime
;
161 uint64_t zo_killrate
;
165 uint64_t zo_maxloops
;
166 uint64_t zo_metaslab_gang_bang
;
167 } ztest_shared_opts_t
;
169 static const ztest_shared_opts_t ztest_opts_defaults
= {
170 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
171 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
172 .zo_alt_ztest
= { '\0' },
173 .zo_alt_libpath
= { '\0' },
175 .zo_ashift
= SPA_MINBLOCKSHIFT
,
178 .zo_raidz_parity
= 1,
179 .zo_vdev_size
= SPA_MINDEVSIZE
,
182 .zo_passtime
= 60, /* 60 seconds */
183 .zo_killrate
= 70, /* 70% kill rate */
186 .zo_time
= 300, /* 5 minutes */
187 .zo_maxloops
= 50, /* max loops during spa_freeze() */
188 .zo_metaslab_gang_bang
= 32 << 10
191 extern uint64_t metaslab_gang_bang
;
192 extern uint64_t metaslab_df_alloc_threshold
;
193 extern int metaslab_preload_limit
;
195 static ztest_shared_opts_t
*ztest_shared_opts
;
196 static ztest_shared_opts_t ztest_opts
;
198 typedef struct ztest_shared_ds
{
202 static ztest_shared_ds_t
*ztest_shared_ds
;
203 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
205 #define BT_MAGIC 0x123456789abcdefULL
206 #define MAXFAULTS() \
207 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
211 ZTEST_IO_WRITE_PATTERN
,
212 ZTEST_IO_WRITE_ZEROES
,
219 typedef struct ztest_block_tag
{
229 typedef struct bufwad
{
236 * XXX -- fix zfs range locks to be generic so we can use them here.
258 #define ZTEST_RANGE_LOCKS 64
259 #define ZTEST_OBJECT_LOCKS 64
262 * Object descriptor. Used as a template for object lookup/create/remove.
264 typedef struct ztest_od
{
267 dmu_object_type_t od_type
;
268 dmu_object_type_t od_crtype
;
269 uint64_t od_blocksize
;
270 uint64_t od_crblocksize
;
273 char od_name
[MAXNAMELEN
];
279 typedef struct ztest_ds
{
280 ztest_shared_ds_t
*zd_shared
;
282 rwlock_t zd_zilog_lock
;
284 ztest_od_t
*zd_od
; /* debugging aid */
285 char zd_name
[MAXNAMELEN
];
286 kmutex_t zd_dirobj_lock
;
287 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
288 rll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
292 * Per-iteration state.
294 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
296 typedef struct ztest_info
{
297 ztest_func_t
*zi_func
; /* test function */
298 uint64_t zi_iters
; /* iterations per execution */
299 uint64_t *zi_interval
; /* execute every <interval> seconds */
302 typedef struct ztest_shared_callstate
{
303 uint64_t zc_count
; /* per-pass count */
304 uint64_t zc_time
; /* per-pass time */
305 uint64_t zc_next
; /* next time to call this function */
306 } ztest_shared_callstate_t
;
308 static ztest_shared_callstate_t
*ztest_shared_callstate
;
309 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
312 * Note: these aren't static because we want dladdr() to work.
314 ztest_func_t ztest_dmu_read_write
;
315 ztest_func_t ztest_dmu_write_parallel
;
316 ztest_func_t ztest_dmu_object_alloc_free
;
317 ztest_func_t ztest_dmu_commit_callbacks
;
318 ztest_func_t ztest_zap
;
319 ztest_func_t ztest_zap_parallel
;
320 ztest_func_t ztest_zil_commit
;
321 ztest_func_t ztest_zil_remount
;
322 ztest_func_t ztest_dmu_read_write_zcopy
;
323 ztest_func_t ztest_dmu_objset_create_destroy
;
324 ztest_func_t ztest_dmu_prealloc
;
325 ztest_func_t ztest_fzap
;
326 ztest_func_t ztest_dmu_snapshot_create_destroy
;
327 ztest_func_t ztest_dsl_prop_get_set
;
328 ztest_func_t ztest_spa_prop_get_set
;
329 ztest_func_t ztest_spa_create_destroy
;
330 ztest_func_t ztest_fault_inject
;
331 ztest_func_t ztest_ddt_repair
;
332 ztest_func_t ztest_dmu_snapshot_hold
;
333 ztest_func_t ztest_spa_rename
;
334 ztest_func_t ztest_scrub
;
335 ztest_func_t ztest_dsl_dataset_promote_busy
;
336 ztest_func_t ztest_vdev_attach_detach
;
337 ztest_func_t ztest_vdev_LUN_growth
;
338 ztest_func_t ztest_vdev_add_remove
;
339 ztest_func_t ztest_vdev_aux_add_remove
;
340 ztest_func_t ztest_split_pool
;
341 ztest_func_t ztest_reguid
;
342 ztest_func_t ztest_spa_upgrade
;
344 uint64_t zopt_always
= 0ULL * NANOSEC
; /* all the time */
345 uint64_t zopt_incessant
= 1ULL * NANOSEC
/ 10; /* every 1/10 second */
346 uint64_t zopt_often
= 1ULL * NANOSEC
; /* every second */
347 uint64_t zopt_sometimes
= 10ULL * NANOSEC
; /* every 10 seconds */
348 uint64_t zopt_rarely
= 60ULL * NANOSEC
; /* every 60 seconds */
350 ztest_info_t ztest_info
[] = {
351 { ztest_dmu_read_write
, 1, &zopt_always
},
352 { ztest_dmu_write_parallel
, 10, &zopt_always
},
353 { ztest_dmu_object_alloc_free
, 1, &zopt_always
},
354 { ztest_dmu_commit_callbacks
, 1, &zopt_always
},
355 { ztest_zap
, 30, &zopt_always
},
356 { ztest_zap_parallel
, 100, &zopt_always
},
357 { ztest_split_pool
, 1, &zopt_always
},
358 { ztest_zil_commit
, 1, &zopt_incessant
},
359 { ztest_zil_remount
, 1, &zopt_sometimes
},
360 { ztest_dmu_read_write_zcopy
, 1, &zopt_often
},
361 { ztest_dmu_objset_create_destroy
, 1, &zopt_often
},
362 { ztest_dsl_prop_get_set
, 1, &zopt_often
},
363 { ztest_spa_prop_get_set
, 1, &zopt_sometimes
},
365 { ztest_dmu_prealloc
, 1, &zopt_sometimes
},
367 { ztest_fzap
, 1, &zopt_sometimes
},
368 { ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
},
369 { ztest_spa_create_destroy
, 1, &zopt_sometimes
},
370 { ztest_fault_inject
, 1, &zopt_sometimes
},
371 { ztest_ddt_repair
, 1, &zopt_sometimes
},
372 { ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
},
373 { ztest_reguid
, 1, &zopt_rarely
},
374 { ztest_spa_rename
, 1, &zopt_rarely
},
375 { ztest_scrub
, 1, &zopt_rarely
},
376 { ztest_spa_upgrade
, 1, &zopt_rarely
},
377 { ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
},
378 { ztest_vdev_attach_detach
, 1, &zopt_sometimes
},
379 { ztest_vdev_LUN_growth
, 1, &zopt_rarely
},
380 { ztest_vdev_add_remove
, 1,
381 &ztest_opts
.zo_vdevtime
},
382 { ztest_vdev_aux_add_remove
, 1,
383 &ztest_opts
.zo_vdevtime
},
386 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
389 * The following struct is used to hold a list of uncalled commit callbacks.
390 * The callbacks are ordered by txg number.
392 typedef struct ztest_cb_list
{
393 kmutex_t zcl_callbacks_lock
;
394 list_t zcl_callbacks
;
398 * Stuff we need to share writably between parent and child.
400 typedef struct ztest_shared
{
401 boolean_t zs_do_init
;
402 hrtime_t zs_proc_start
;
403 hrtime_t zs_proc_stop
;
404 hrtime_t zs_thread_start
;
405 hrtime_t zs_thread_stop
;
406 hrtime_t zs_thread_kill
;
407 uint64_t zs_enospc_count
;
408 uint64_t zs_vdev_next_leaf
;
409 uint64_t zs_vdev_aux
;
414 uint64_t zs_metaslab_sz
;
415 uint64_t zs_metaslab_df_alloc_threshold
;
419 #define ID_PARALLEL -1ULL
421 static char ztest_dev_template
[] = "%s/%s.%llua";
422 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
423 ztest_shared_t
*ztest_shared
;
425 static spa_t
*ztest_spa
= NULL
;
426 static ztest_ds_t
*ztest_ds
;
428 static kmutex_t ztest_vdev_lock
;
431 * The ztest_name_lock protects the pool and dataset namespace used by
432 * the individual tests. To modify the namespace, consumers must grab
433 * this lock as writer. Grabbing the lock as reader will ensure that the
434 * namespace does not change while the lock is held.
436 static rwlock_t ztest_name_lock
;
438 static boolean_t ztest_dump_core
= B_TRUE
;
439 static boolean_t ztest_exiting
;
441 /* Global commit callback list */
442 static ztest_cb_list_t zcl
;
443 /* Commit cb delay */
444 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
445 static int zc_cb_counter
= 0;
448 * Minimum number of commit callbacks that need to be registered for us to check
449 * whether the minimum txg delay is acceptable.
451 #define ZTEST_COMMIT_CB_MIN_REG 100
454 * If a number of txgs equal to this threshold have been created after a commit
455 * callback has been registered but not called, then we assume there is an
456 * implementation bug.
458 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
460 extern uint64_t metaslab_gang_bang
;
461 extern uint64_t metaslab_df_alloc_threshold
;
464 ZTEST_META_DNODE
= 0,
469 static void usage(boolean_t
) __NORETURN
;
472 * These libumem hooks provide a reasonable set of defaults for the allocator's
473 * debugging facilities.
476 _umem_debug_init(void)
478 return ("default,verbose"); /* $UMEM_DEBUG setting */
482 _umem_logging_init(void)
484 return ("fail,contents"); /* $UMEM_LOGGING setting */
487 #define BACKTRACE_SZ 100
489 static void sig_handler(int signo
)
491 struct sigaction action
;
492 #ifdef __GNUC__ /* backtrace() is a GNU extension */
494 void *buffer
[BACKTRACE_SZ
];
496 nptrs
= backtrace(buffer
, BACKTRACE_SZ
);
497 backtrace_symbols_fd(buffer
, nptrs
, STDERR_FILENO
);
501 * Restore default action and re-raise signal so SIGSEGV and
502 * SIGABRT can trigger a core dump.
504 action
.sa_handler
= SIG_DFL
;
505 sigemptyset(&action
.sa_mask
);
507 (void) sigaction(signo
, &action
, NULL
);
511 #define FATAL_MSG_SZ 1024
516 fatal(int do_perror
, char *message
, ...)
519 int save_errno
= errno
;
522 (void) fflush(stdout
);
523 buf
= umem_alloc(FATAL_MSG_SZ
, UMEM_NOFAIL
);
525 va_start(args
, message
);
526 (void) sprintf(buf
, "ztest: ");
528 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
531 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
532 ": %s", strerror(save_errno
));
534 (void) fprintf(stderr
, "%s\n", buf
);
535 fatal_msg
= buf
; /* to ease debugging */
542 str2shift(const char *buf
)
544 const char *ends
= "BKMGTPEZ";
549 for (i
= 0; i
< strlen(ends
); i
++) {
550 if (toupper(buf
[0]) == ends
[i
])
553 if (i
== strlen(ends
)) {
554 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
558 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
561 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
567 nicenumtoull(const char *buf
)
572 val
= strtoull(buf
, &end
, 0);
574 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
576 } else if (end
[0] == '.') {
577 double fval
= strtod(buf
, &end
);
578 fval
*= pow(2, str2shift(end
));
579 if (fval
> UINT64_MAX
) {
580 (void) fprintf(stderr
, "ztest: value too large: %s\n",
584 val
= (uint64_t)fval
;
586 int shift
= str2shift(end
);
587 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
588 (void) fprintf(stderr
, "ztest: value too large: %s\n",
598 usage(boolean_t requested
)
600 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
602 char nice_vdev_size
[10];
603 char nice_gang_bang
[10];
604 FILE *fp
= requested
? stdout
: stderr
;
606 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
607 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
609 (void) fprintf(fp
, "Usage: %s\n"
610 "\t[-v vdevs (default: %llu)]\n"
611 "\t[-s size_of_each_vdev (default: %s)]\n"
612 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
613 "\t[-m mirror_copies (default: %d)]\n"
614 "\t[-r raidz_disks (default: %d)]\n"
615 "\t[-R raidz_parity (default: %d)]\n"
616 "\t[-d datasets (default: %d)]\n"
617 "\t[-t threads (default: %d)]\n"
618 "\t[-g gang_block_threshold (default: %s)]\n"
619 "\t[-i init_count (default: %d)] initialize pool i times\n"
620 "\t[-k kill_percentage (default: %llu%%)]\n"
621 "\t[-p pool_name (default: %s)]\n"
622 "\t[-f dir (default: %s)] file directory for vdev files\n"
623 "\t[-V] verbose (use multiple times for ever more blather)\n"
624 "\t[-E] use existing pool instead of creating new one\n"
625 "\t[-T time (default: %llu sec)] total run time\n"
626 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
627 "\t[-P passtime (default: %llu sec)] time per pass\n"
628 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
629 "\t[-h] (print help)\n"
632 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
633 nice_vdev_size
, /* -s */
634 zo
->zo_ashift
, /* -a */
635 zo
->zo_mirrors
, /* -m */
636 zo
->zo_raidz
, /* -r */
637 zo
->zo_raidz_parity
, /* -R */
638 zo
->zo_datasets
, /* -d */
639 zo
->zo_threads
, /* -t */
640 nice_gang_bang
, /* -g */
641 zo
->zo_init
, /* -i */
642 (u_longlong_t
)zo
->zo_killrate
, /* -k */
643 zo
->zo_pool
, /* -p */
645 (u_longlong_t
)zo
->zo_time
, /* -T */
646 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
647 (u_longlong_t
)zo
->zo_passtime
);
648 exit(requested
? 0 : 1);
652 process_options(int argc
, char **argv
)
655 ztest_shared_opts_t
*zo
= &ztest_opts
;
659 char altdir
[MAXNAMELEN
] = { 0 };
661 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
663 while ((opt
= getopt(argc
, argv
,
664 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:hF:B:")) != EOF
) {
681 value
= nicenumtoull(optarg
);
685 zo
->zo_vdevs
= value
;
688 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
691 zo
->zo_ashift
= value
;
694 zo
->zo_mirrors
= value
;
697 zo
->zo_raidz
= MAX(1, value
);
700 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
703 zo
->zo_datasets
= MAX(1, value
);
706 zo
->zo_threads
= MAX(1, value
);
709 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
716 zo
->zo_killrate
= value
;
719 (void) strlcpy(zo
->zo_pool
, optarg
,
720 sizeof (zo
->zo_pool
));
723 path
= realpath(optarg
, NULL
);
725 (void) fprintf(stderr
, "error: %s: %s\n",
726 optarg
, strerror(errno
));
729 (void) strlcpy(zo
->zo_dir
, path
,
730 sizeof (zo
->zo_dir
));
743 zo
->zo_passtime
= MAX(1, value
);
746 zo
->zo_maxloops
= MAX(1, value
);
749 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
761 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
764 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
767 if (strlen(altdir
) > 0) {
775 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
776 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
778 VERIFY(NULL
!= realpath(getexecname(), cmd
));
779 if (0 != access(altdir
, F_OK
)) {
780 ztest_dump_core
= B_FALSE
;
781 fatal(B_TRUE
, "invalid alternate ztest path: %s",
784 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
787 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
788 * We want to extract <isa> to determine if we should use
789 * 32 or 64 bit binaries.
791 bin
= strstr(cmd
, "/usr/bin/");
792 ztest
= strstr(bin
, "/ztest");
794 isalen
= ztest
- isa
;
795 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
796 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
797 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
798 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
800 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
801 ztest_dump_core
= B_FALSE
;
802 fatal(B_TRUE
, "invalid alternate ztest: %s",
804 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
805 ztest_dump_core
= B_FALSE
;
806 fatal(B_TRUE
, "invalid alternate lib directory %s",
810 umem_free(cmd
, MAXPATHLEN
);
811 umem_free(realaltdir
, MAXPATHLEN
);
816 ztest_kill(ztest_shared_t
*zs
)
818 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
819 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
822 * Before we kill off ztest, make sure that the config is updated.
823 * See comment above spa_config_sync().
825 mutex_enter(&spa_namespace_lock
);
826 spa_config_sync(ztest_spa
, B_FALSE
, B_FALSE
);
827 mutex_exit(&spa_namespace_lock
);
829 if (ztest_opts
.zo_verbose
>= 3)
830 zfs_dbgmsg_print(FTAG
);
832 (void) kill(getpid(), SIGKILL
);
836 ztest_random(uint64_t range
)
840 ASSERT3S(ztest_fd_rand
, >=, 0);
845 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
846 fatal(1, "short read from /dev/urandom");
853 ztest_record_enospc(const char *s
)
855 ztest_shared
->zs_enospc_count
++;
859 ztest_get_ashift(void)
861 if (ztest_opts
.zo_ashift
== 0)
862 return (SPA_MINBLOCKSHIFT
+ ztest_random(3));
863 return (ztest_opts
.zo_ashift
);
867 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
873 pathbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
876 ashift
= ztest_get_ashift();
882 vdev
= ztest_shared
->zs_vdev_aux
;
883 (void) snprintf(path
, MAXPATHLEN
,
884 ztest_aux_template
, ztest_opts
.zo_dir
,
885 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
888 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
889 (void) snprintf(path
, MAXPATHLEN
,
890 ztest_dev_template
, ztest_opts
.zo_dir
,
891 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
896 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
898 fatal(1, "can't open %s", path
);
899 if (ftruncate(fd
, size
) != 0)
900 fatal(1, "can't ftruncate %s", path
);
904 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
905 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
906 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
907 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
908 umem_free(pathbuf
, MAXPATHLEN
);
914 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
915 uint64_t ashift
, int r
)
917 nvlist_t
*raidz
, **child
;
921 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
922 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
924 for (c
= 0; c
< r
; c
++)
925 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
927 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
928 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
929 VDEV_TYPE_RAIDZ
) == 0);
930 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
931 ztest_opts
.zo_raidz_parity
) == 0);
932 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
935 for (c
= 0; c
< r
; c
++)
936 nvlist_free(child
[c
]);
938 umem_free(child
, r
* sizeof (nvlist_t
*));
944 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
945 uint64_t ashift
, int r
, int m
)
947 nvlist_t
*mirror
, **child
;
951 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
953 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
955 for (c
= 0; c
< m
; c
++)
956 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
958 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
959 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
960 VDEV_TYPE_MIRROR
) == 0);
961 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
964 for (c
= 0; c
< m
; c
++)
965 nvlist_free(child
[c
]);
967 umem_free(child
, m
* sizeof (nvlist_t
*));
973 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
974 int log
, int r
, int m
, int t
)
976 nvlist_t
*root
, **child
;
981 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
983 for (c
= 0; c
< t
; c
++) {
984 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
986 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
990 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
991 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
992 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
995 for (c
= 0; c
< t
; c
++)
996 nvlist_free(child
[c
]);
998 umem_free(child
, t
* sizeof (nvlist_t
*));
1004 * Find a random spa version. Returns back a random spa version in the
1005 * range [initial_version, SPA_VERSION_FEATURES].
1008 ztest_random_spa_version(uint64_t initial_version
)
1010 uint64_t version
= initial_version
;
1012 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
1014 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
1017 if (version
> SPA_VERSION_BEFORE_FEATURES
)
1018 version
= SPA_VERSION_FEATURES
;
1020 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
1025 ztest_random_blocksize(void)
1027 return (1 << (SPA_MINBLOCKSHIFT
+
1028 ztest_random(SPA_MAXBLOCKSHIFT
- SPA_MINBLOCKSHIFT
+ 1)));
1032 ztest_random_ibshift(void)
1034 return (DN_MIN_INDBLKSHIFT
+
1035 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
1039 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
1042 vdev_t
*rvd
= spa
->spa_root_vdev
;
1045 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
1048 top
= ztest_random(rvd
->vdev_children
);
1049 tvd
= rvd
->vdev_child
[top
];
1050 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
1051 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
1057 ztest_random_dsl_prop(zfs_prop_t prop
)
1062 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
1063 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1069 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1072 const char *propname
= zfs_prop_to_name(prop
);
1073 const char *valname
;
1078 error
= dsl_prop_set_int(osname
, propname
,
1079 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1081 if (error
== ENOSPC
) {
1082 ztest_record_enospc(FTAG
);
1087 setpoint
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
1088 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1090 if (ztest_opts
.zo_verbose
>= 6) {
1091 VERIFY(zfs_prop_index_to_string(prop
, curval
, &valname
) == 0);
1092 (void) printf("%s %s = %s at '%s'\n",
1093 osname
, propname
, valname
, setpoint
);
1095 umem_free(setpoint
, MAXPATHLEN
);
1101 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1103 spa_t
*spa
= ztest_spa
;
1104 nvlist_t
*props
= NULL
;
1107 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1108 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1110 error
= spa_prop_set(spa
, props
);
1114 if (error
== ENOSPC
) {
1115 ztest_record_enospc(FTAG
);
1124 ztest_rll_init(rll_t
*rll
)
1126 rll
->rll_writer
= NULL
;
1127 rll
->rll_readers
= 0;
1128 mutex_init(&rll
->rll_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1129 cv_init(&rll
->rll_cv
, NULL
, CV_DEFAULT
, NULL
);
1133 ztest_rll_destroy(rll_t
*rll
)
1135 ASSERT(rll
->rll_writer
== NULL
);
1136 ASSERT(rll
->rll_readers
== 0);
1137 mutex_destroy(&rll
->rll_lock
);
1138 cv_destroy(&rll
->rll_cv
);
1142 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1144 mutex_enter(&rll
->rll_lock
);
1146 if (type
== RL_READER
) {
1147 while (rll
->rll_writer
!= NULL
)
1148 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1151 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1152 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1153 rll
->rll_writer
= curthread
;
1156 mutex_exit(&rll
->rll_lock
);
1160 ztest_rll_unlock(rll_t
*rll
)
1162 mutex_enter(&rll
->rll_lock
);
1164 if (rll
->rll_writer
) {
1165 ASSERT(rll
->rll_readers
== 0);
1166 rll
->rll_writer
= NULL
;
1168 ASSERT(rll
->rll_readers
!= 0);
1169 ASSERT(rll
->rll_writer
== NULL
);
1173 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1174 cv_broadcast(&rll
->rll_cv
);
1176 mutex_exit(&rll
->rll_lock
);
1180 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1182 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1184 ztest_rll_lock(rll
, type
);
1188 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1190 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1192 ztest_rll_unlock(rll
);
1196 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1197 uint64_t size
, rl_type_t type
)
1199 uint64_t hash
= object
^ (offset
% (ZTEST_RANGE_LOCKS
+ 1));
1200 rll_t
*rll
= &zd
->zd_range_lock
[hash
& (ZTEST_RANGE_LOCKS
- 1)];
1203 rl
= umem_alloc(sizeof (*rl
), UMEM_NOFAIL
);
1204 rl
->rl_object
= object
;
1205 rl
->rl_offset
= offset
;
1209 ztest_rll_lock(rll
, type
);
1215 ztest_range_unlock(rl_t
*rl
)
1217 rll_t
*rll
= rl
->rl_lock
;
1219 ztest_rll_unlock(rll
);
1221 umem_free(rl
, sizeof (*rl
));
1225 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1228 zd
->zd_zilog
= dmu_objset_zil(os
);
1229 zd
->zd_shared
= szd
;
1230 dmu_objset_name(os
, zd
->zd_name
);
1233 if (zd
->zd_shared
!= NULL
)
1234 zd
->zd_shared
->zd_seq
= 0;
1236 VERIFY(rwlock_init(&zd
->zd_zilog_lock
, USYNC_THREAD
, NULL
) == 0);
1237 mutex_init(&zd
->zd_dirobj_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1239 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1240 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1242 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1243 ztest_rll_init(&zd
->zd_range_lock
[l
]);
1247 ztest_zd_fini(ztest_ds_t
*zd
)
1251 mutex_destroy(&zd
->zd_dirobj_lock
);
1252 (void) rwlock_destroy(&zd
->zd_zilog_lock
);
1254 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1255 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1257 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1258 ztest_rll_destroy(&zd
->zd_range_lock
[l
]);
1261 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1264 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1270 * Attempt to assign tx to some transaction group.
1272 error
= dmu_tx_assign(tx
, txg_how
);
1274 if (error
== ERESTART
) {
1275 ASSERT(txg_how
== TXG_NOWAIT
);
1278 ASSERT3U(error
, ==, ENOSPC
);
1279 ztest_record_enospc(tag
);
1284 txg
= dmu_tx_get_txg(tx
);
1290 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1293 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1301 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1304 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1308 diff
|= (value
- *ip
++);
1315 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1316 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1318 bt
->bt_magic
= BT_MAGIC
;
1319 bt
->bt_objset
= dmu_objset_id(os
);
1320 bt
->bt_object
= object
;
1321 bt
->bt_offset
= offset
;
1324 bt
->bt_crtxg
= crtxg
;
1328 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1329 uint64_t offset
, uint64_t gen
, uint64_t txg
, uint64_t crtxg
)
1331 ASSERT3U(bt
->bt_magic
, ==, BT_MAGIC
);
1332 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
1333 ASSERT3U(bt
->bt_object
, ==, object
);
1334 ASSERT3U(bt
->bt_offset
, ==, offset
);
1335 ASSERT3U(bt
->bt_gen
, <=, gen
);
1336 ASSERT3U(bt
->bt_txg
, <=, txg
);
1337 ASSERT3U(bt
->bt_crtxg
, ==, crtxg
);
1340 static ztest_block_tag_t
*
1341 ztest_bt_bonus(dmu_buf_t
*db
)
1343 dmu_object_info_t doi
;
1344 ztest_block_tag_t
*bt
;
1346 dmu_object_info_from_db(db
, &doi
);
1347 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1348 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1349 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1358 #define lrz_type lr_mode
1359 #define lrz_blocksize lr_uid
1360 #define lrz_ibshift lr_gid
1361 #define lrz_bonustype lr_rdev
1362 #define lrz_bonuslen lr_crtime[1]
1365 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1367 char *name
= (void *)(lr
+ 1); /* name follows lr */
1368 size_t namesize
= strlen(name
) + 1;
1371 if (zil_replaying(zd
->zd_zilog
, tx
))
1374 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1375 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1376 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1378 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1382 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1384 char *name
= (void *)(lr
+ 1); /* name follows lr */
1385 size_t namesize
= strlen(name
) + 1;
1388 if (zil_replaying(zd
->zd_zilog
, tx
))
1391 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1392 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1393 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1395 itx
->itx_oid
= object
;
1396 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1400 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1403 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1405 if (zil_replaying(zd
->zd_zilog
, tx
))
1408 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1409 write_state
= WR_INDIRECT
;
1411 itx
= zil_itx_create(TX_WRITE
,
1412 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1414 if (write_state
== WR_COPIED
&&
1415 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1416 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1417 zil_itx_destroy(itx
);
1418 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1419 write_state
= WR_NEED_COPY
;
1421 itx
->itx_private
= zd
;
1422 itx
->itx_wr_state
= write_state
;
1423 itx
->itx_sync
= (ztest_random(8) == 0);
1424 itx
->itx_sod
+= (write_state
== WR_NEED_COPY
? lr
->lr_length
: 0);
1426 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1427 sizeof (*lr
) - sizeof (lr_t
));
1429 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1433 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1437 if (zil_replaying(zd
->zd_zilog
, tx
))
1440 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1441 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1442 sizeof (*lr
) - sizeof (lr_t
));
1444 itx
->itx_sync
= B_FALSE
;
1445 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1449 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1453 if (zil_replaying(zd
->zd_zilog
, tx
))
1456 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1457 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1458 sizeof (*lr
) - sizeof (lr_t
));
1460 itx
->itx_sync
= B_FALSE
;
1461 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1468 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1470 char *name
= (void *)(lr
+ 1); /* name follows lr */
1471 objset_t
*os
= zd
->zd_os
;
1472 ztest_block_tag_t
*bbt
;
1479 byteswap_uint64_array(lr
, sizeof (*lr
));
1481 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1482 ASSERT(name
[0] != '\0');
1484 tx
= dmu_tx_create(os
);
1486 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1488 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1489 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1491 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1494 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1498 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1500 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1501 if (lr
->lr_foid
== 0) {
1502 lr
->lr_foid
= zap_create(os
,
1503 lr
->lrz_type
, lr
->lrz_bonustype
,
1504 lr
->lrz_bonuslen
, tx
);
1506 error
= zap_create_claim(os
, lr
->lr_foid
,
1507 lr
->lrz_type
, lr
->lrz_bonustype
,
1508 lr
->lrz_bonuslen
, tx
);
1511 if (lr
->lr_foid
== 0) {
1512 lr
->lr_foid
= dmu_object_alloc(os
,
1513 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1514 lr
->lrz_bonuslen
, tx
);
1516 error
= dmu_object_claim(os
, lr
->lr_foid
,
1517 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1518 lr
->lrz_bonuslen
, tx
);
1523 ASSERT3U(error
, ==, EEXIST
);
1524 ASSERT(zd
->zd_zilog
->zl_replay
);
1529 ASSERT(lr
->lr_foid
!= 0);
1531 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1532 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1533 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1535 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1536 bbt
= ztest_bt_bonus(db
);
1537 dmu_buf_will_dirty(db
, tx
);
1538 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_gen
, txg
, txg
);
1539 dmu_buf_rele(db
, FTAG
);
1541 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1544 (void) ztest_log_create(zd
, tx
, lr
);
1552 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1554 char *name
= (void *)(lr
+ 1); /* name follows lr */
1555 objset_t
*os
= zd
->zd_os
;
1556 dmu_object_info_t doi
;
1558 uint64_t object
, txg
;
1561 byteswap_uint64_array(lr
, sizeof (*lr
));
1563 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1564 ASSERT(name
[0] != '\0');
1567 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1568 ASSERT(object
!= 0);
1570 ztest_object_lock(zd
, object
, RL_WRITER
);
1572 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1574 tx
= dmu_tx_create(os
);
1576 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1577 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1579 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1581 ztest_object_unlock(zd
, object
);
1585 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1586 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1588 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1591 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1593 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1597 ztest_object_unlock(zd
, object
);
1603 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1605 objset_t
*os
= zd
->zd_os
;
1606 void *data
= lr
+ 1; /* data follows lr */
1607 uint64_t offset
, length
;
1608 ztest_block_tag_t
*bt
= data
;
1609 ztest_block_tag_t
*bbt
;
1610 uint64_t gen
, txg
, lrtxg
, crtxg
;
1611 dmu_object_info_t doi
;
1614 arc_buf_t
*abuf
= NULL
;
1618 byteswap_uint64_array(lr
, sizeof (*lr
));
1620 offset
= lr
->lr_offset
;
1621 length
= lr
->lr_length
;
1623 /* If it's a dmu_sync() block, write the whole block */
1624 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1625 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1626 if (length
< blocksize
) {
1627 offset
-= offset
% blocksize
;
1632 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1633 byteswap_uint64_array(bt
, sizeof (*bt
));
1635 if (bt
->bt_magic
!= BT_MAGIC
)
1638 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1639 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1641 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1643 dmu_object_info_from_db(db
, &doi
);
1645 bbt
= ztest_bt_bonus(db
);
1646 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1648 crtxg
= bbt
->bt_crtxg
;
1649 lrtxg
= lr
->lr_common
.lrc_txg
;
1651 tx
= dmu_tx_create(os
);
1653 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1655 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1656 P2PHASE(offset
, length
) == 0)
1657 abuf
= dmu_request_arcbuf(db
, length
);
1659 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1662 dmu_return_arcbuf(abuf
);
1663 dmu_buf_rele(db
, FTAG
);
1664 ztest_range_unlock(rl
);
1665 ztest_object_unlock(zd
, lr
->lr_foid
);
1671 * Usually, verify the old data before writing new data --
1672 * but not always, because we also want to verify correct
1673 * behavior when the data was not recently read into cache.
1675 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1676 if (ztest_random(4) != 0) {
1677 int prefetch
= ztest_random(2) ?
1678 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1679 ztest_block_tag_t rbt
;
1681 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1682 sizeof (rbt
), &rbt
, prefetch
) == 0);
1683 if (rbt
.bt_magic
== BT_MAGIC
) {
1684 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
,
1685 offset
, gen
, txg
, crtxg
);
1690 * Writes can appear to be newer than the bonus buffer because
1691 * the ztest_get_data() callback does a dmu_read() of the
1692 * open-context data, which may be different than the data
1693 * as it was when the write was generated.
1695 if (zd
->zd_zilog
->zl_replay
) {
1696 ztest_bt_verify(bt
, os
, lr
->lr_foid
, offset
,
1697 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1702 * Set the bt's gen/txg to the bonus buffer's gen/txg
1703 * so that all of the usual ASSERTs will work.
1705 ztest_bt_generate(bt
, os
, lr
->lr_foid
, offset
, gen
, txg
, crtxg
);
1709 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1711 bcopy(data
, abuf
->b_data
, length
);
1712 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1715 (void) ztest_log_write(zd
, tx
, lr
);
1717 dmu_buf_rele(db
, FTAG
);
1721 ztest_range_unlock(rl
);
1722 ztest_object_unlock(zd
, lr
->lr_foid
);
1728 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1730 objset_t
*os
= zd
->zd_os
;
1736 byteswap_uint64_array(lr
, sizeof (*lr
));
1738 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1739 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1742 tx
= dmu_tx_create(os
);
1744 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1746 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1748 ztest_range_unlock(rl
);
1749 ztest_object_unlock(zd
, lr
->lr_foid
);
1753 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1754 lr
->lr_length
, tx
) == 0);
1756 (void) ztest_log_truncate(zd
, tx
, lr
);
1760 ztest_range_unlock(rl
);
1761 ztest_object_unlock(zd
, lr
->lr_foid
);
1767 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1769 objset_t
*os
= zd
->zd_os
;
1772 ztest_block_tag_t
*bbt
;
1773 uint64_t txg
, lrtxg
, crtxg
;
1776 byteswap_uint64_array(lr
, sizeof (*lr
));
1778 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1780 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1782 tx
= dmu_tx_create(os
);
1783 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1785 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1787 dmu_buf_rele(db
, FTAG
);
1788 ztest_object_unlock(zd
, lr
->lr_foid
);
1792 bbt
= ztest_bt_bonus(db
);
1793 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1794 crtxg
= bbt
->bt_crtxg
;
1795 lrtxg
= lr
->lr_common
.lrc_txg
;
1797 if (zd
->zd_zilog
->zl_replay
) {
1798 ASSERT(lr
->lr_size
!= 0);
1799 ASSERT(lr
->lr_mode
!= 0);
1803 * Randomly change the size and increment the generation.
1805 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
1807 lr
->lr_mode
= bbt
->bt_gen
+ 1;
1812 * Verify that the current bonus buffer is not newer than our txg.
1814 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
,
1815 MAX(txg
, lrtxg
), crtxg
);
1817 dmu_buf_will_dirty(db
, tx
);
1819 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
1820 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
1821 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
1822 bbt
= ztest_bt_bonus(db
);
1824 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, -1ULL, lr
->lr_mode
, txg
, crtxg
);
1826 dmu_buf_rele(db
, FTAG
);
1828 (void) ztest_log_setattr(zd
, tx
, lr
);
1832 ztest_object_unlock(zd
, lr
->lr_foid
);
1837 zil_replay_func_t ztest_replay_vector
[TX_MAX_TYPE
] = {
1838 NULL
, /* 0 no such transaction type */
1839 (zil_replay_func_t
)ztest_replay_create
, /* TX_CREATE */
1840 NULL
, /* TX_MKDIR */
1841 NULL
, /* TX_MKXATTR */
1842 NULL
, /* TX_SYMLINK */
1843 (zil_replay_func_t
)ztest_replay_remove
, /* TX_REMOVE */
1844 NULL
, /* TX_RMDIR */
1846 NULL
, /* TX_RENAME */
1847 (zil_replay_func_t
)ztest_replay_write
, /* TX_WRITE */
1848 (zil_replay_func_t
)ztest_replay_truncate
, /* TX_TRUNCATE */
1849 (zil_replay_func_t
)ztest_replay_setattr
, /* TX_SETATTR */
1851 NULL
, /* TX_CREATE_ACL */
1852 NULL
, /* TX_CREATE_ATTR */
1853 NULL
, /* TX_CREATE_ACL_ATTR */
1854 NULL
, /* TX_MKDIR_ACL */
1855 NULL
, /* TX_MKDIR_ATTR */
1856 NULL
, /* TX_MKDIR_ACL_ATTR */
1857 NULL
, /* TX_WRITE2 */
1861 * ZIL get_data callbacks
1865 ztest_get_done(zgd_t
*zgd
, int error
)
1867 ztest_ds_t
*zd
= zgd
->zgd_private
;
1868 uint64_t object
= zgd
->zgd_rl
->rl_object
;
1871 dmu_buf_rele(zgd
->zgd_db
, zgd
);
1873 ztest_range_unlock(zgd
->zgd_rl
);
1874 ztest_object_unlock(zd
, object
);
1876 if (error
== 0 && zgd
->zgd_bp
)
1877 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
1879 umem_free(zgd
, sizeof (*zgd
));
1883 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
1885 ztest_ds_t
*zd
= arg
;
1886 objset_t
*os
= zd
->zd_os
;
1887 uint64_t object
= lr
->lr_foid
;
1888 uint64_t offset
= lr
->lr_offset
;
1889 uint64_t size
= lr
->lr_length
;
1890 blkptr_t
*bp
= &lr
->lr_blkptr
;
1891 uint64_t txg
= lr
->lr_common
.lrc_txg
;
1893 dmu_object_info_t doi
;
1898 ztest_object_lock(zd
, object
, RL_READER
);
1899 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
1901 ztest_object_unlock(zd
, object
);
1905 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
1907 if (crtxg
== 0 || crtxg
> txg
) {
1908 dmu_buf_rele(db
, FTAG
);
1909 ztest_object_unlock(zd
, object
);
1913 dmu_object_info_from_db(db
, &doi
);
1914 dmu_buf_rele(db
, FTAG
);
1917 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
1918 zgd
->zgd_zilog
= zd
->zd_zilog
;
1919 zgd
->zgd_private
= zd
;
1921 if (buf
!= NULL
) { /* immediate write */
1922 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1925 error
= dmu_read(os
, object
, offset
, size
, buf
,
1926 DMU_READ_NO_PREFETCH
);
1929 size
= doi
.doi_data_block_size
;
1931 offset
= P2ALIGN(offset
, size
);
1933 ASSERT(offset
< size
);
1937 zgd
->zgd_rl
= ztest_range_lock(zd
, object
, offset
, size
,
1940 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
1941 DMU_READ_NO_PREFETCH
);
1944 blkptr_t
*obp
= dmu_buf_get_blkptr(db
);
1946 ASSERT(BP_IS_HOLE(bp
));
1953 ASSERT(db
->db_offset
== offset
);
1954 ASSERT(db
->db_size
== size
);
1956 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
1957 ztest_get_done
, zgd
);
1964 ztest_get_done(zgd
, error
);
1970 ztest_lr_alloc(size_t lrsize
, char *name
)
1973 size_t namesize
= name
? strlen(name
) + 1 : 0;
1975 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
1978 bcopy(name
, lr
+ lrsize
, namesize
);
1984 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
1986 size_t namesize
= name
? strlen(name
) + 1 : 0;
1988 umem_free(lr
, lrsize
+ namesize
);
1992 * Lookup a bunch of objects. Returns the number of objects not found.
1995 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2001 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2003 for (i
= 0; i
< count
; i
++, od
++) {
2005 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
2006 sizeof (uint64_t), 1, &od
->od_object
);
2008 ASSERT(error
== ENOENT
);
2009 ASSERT(od
->od_object
== 0);
2013 ztest_block_tag_t
*bbt
;
2014 dmu_object_info_t doi
;
2016 ASSERT(od
->od_object
!= 0);
2017 ASSERT(missing
== 0); /* there should be no gaps */
2019 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
2020 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
2021 od
->od_object
, FTAG
, &db
));
2022 dmu_object_info_from_db(db
, &doi
);
2023 bbt
= ztest_bt_bonus(db
);
2024 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
2025 od
->od_type
= doi
.doi_type
;
2026 od
->od_blocksize
= doi
.doi_data_block_size
;
2027 od
->od_gen
= bbt
->bt_gen
;
2028 dmu_buf_rele(db
, FTAG
);
2029 ztest_object_unlock(zd
, od
->od_object
);
2037 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2042 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2044 for (i
= 0; i
< count
; i
++, od
++) {
2051 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2053 lr
->lr_doid
= od
->od_dir
;
2054 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
2055 lr
->lrz_type
= od
->od_crtype
;
2056 lr
->lrz_blocksize
= od
->od_crblocksize
;
2057 lr
->lrz_ibshift
= ztest_random_ibshift();
2058 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
2059 lr
->lrz_bonuslen
= dmu_bonus_max();
2060 lr
->lr_gen
= od
->od_crgen
;
2061 lr
->lr_crtime
[0] = time(NULL
);
2063 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
2064 ASSERT(missing
== 0);
2068 od
->od_object
= lr
->lr_foid
;
2069 od
->od_type
= od
->od_crtype
;
2070 od
->od_blocksize
= od
->od_crblocksize
;
2071 od
->od_gen
= od
->od_crgen
;
2072 ASSERT(od
->od_object
!= 0);
2075 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2082 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2088 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2092 for (i
= count
- 1; i
>= 0; i
--, od
--) {
2099 * No object was found.
2101 if (od
->od_object
== 0)
2104 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2106 lr
->lr_doid
= od
->od_dir
;
2108 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2109 ASSERT3U(error
, ==, ENOSPC
);
2114 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2121 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2127 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2129 lr
->lr_foid
= object
;
2130 lr
->lr_offset
= offset
;
2131 lr
->lr_length
= size
;
2133 BP_ZERO(&lr
->lr_blkptr
);
2135 bcopy(data
, lr
+ 1, size
);
2137 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2139 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2145 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2150 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2152 lr
->lr_foid
= object
;
2153 lr
->lr_offset
= offset
;
2154 lr
->lr_length
= size
;
2156 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2158 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2164 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2169 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2171 lr
->lr_foid
= object
;
2175 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2177 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2183 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2185 objset_t
*os
= zd
->zd_os
;
2190 txg_wait_synced(dmu_objset_pool(os
), 0);
2192 ztest_object_lock(zd
, object
, RL_READER
);
2193 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2195 tx
= dmu_tx_create(os
);
2197 dmu_tx_hold_write(tx
, object
, offset
, size
);
2199 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2202 dmu_prealloc(os
, object
, offset
, size
, tx
);
2204 txg_wait_synced(dmu_objset_pool(os
), txg
);
2206 (void) dmu_free_long_range(os
, object
, offset
, size
);
2209 ztest_range_unlock(rl
);
2210 ztest_object_unlock(zd
, object
);
2214 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2217 ztest_block_tag_t wbt
;
2218 dmu_object_info_t doi
;
2219 enum ztest_io_type io_type
;
2223 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2224 blocksize
= doi
.doi_data_block_size
;
2225 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2228 * Pick an i/o type at random, biased toward writing block tags.
2230 io_type
= ztest_random(ZTEST_IO_TYPES
);
2231 if (ztest_random(2) == 0)
2232 io_type
= ZTEST_IO_WRITE_TAG
;
2234 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2238 case ZTEST_IO_WRITE_TAG
:
2239 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, offset
, 0, 0, 0);
2240 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2243 case ZTEST_IO_WRITE_PATTERN
:
2244 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2245 if (ztest_random(2) == 0) {
2247 * Induce fletcher2 collisions to ensure that
2248 * zio_ddt_collision() detects and resolves them
2249 * when using fletcher2-verify for deduplication.
2251 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2252 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2254 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2257 case ZTEST_IO_WRITE_ZEROES
:
2258 bzero(data
, blocksize
);
2259 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2262 case ZTEST_IO_TRUNCATE
:
2263 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2266 case ZTEST_IO_SETATTR
:
2267 (void) ztest_setattr(zd
, object
);
2272 case ZTEST_IO_REWRITE
:
2273 (void) rw_rdlock(&ztest_name_lock
);
2274 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2275 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2277 VERIFY(err
== 0 || err
== ENOSPC
);
2278 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2279 ZFS_PROP_COMPRESSION
,
2280 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2282 VERIFY(err
== 0 || err
== ENOSPC
);
2283 (void) rw_unlock(&ztest_name_lock
);
2285 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2286 DMU_READ_NO_PREFETCH
));
2288 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2292 (void) rw_unlock(&zd
->zd_zilog_lock
);
2294 umem_free(data
, blocksize
);
2298 * Initialize an object description template.
2301 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2302 dmu_object_type_t type
, uint64_t blocksize
, uint64_t gen
)
2304 od
->od_dir
= ZTEST_DIROBJ
;
2307 od
->od_crtype
= type
;
2308 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2311 od
->od_type
= DMU_OT_NONE
;
2312 od
->od_blocksize
= 0;
2315 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2316 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2320 * Lookup or create the objects for a test using the od template.
2321 * If the objects do not all exist, or if 'remove' is specified,
2322 * remove any existing objects and create new ones. Otherwise,
2323 * use the existing objects.
2326 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2328 int count
= size
/ sizeof (*od
);
2331 mutex_enter(&zd
->zd_dirobj_lock
);
2332 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2333 (ztest_remove(zd
, od
, count
) != 0 ||
2334 ztest_create(zd
, od
, count
) != 0))
2337 mutex_exit(&zd
->zd_dirobj_lock
);
2344 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2346 zilog_t
*zilog
= zd
->zd_zilog
;
2348 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2350 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2353 * Remember the committed values in zd, which is in parent/child
2354 * shared memory. If we die, the next iteration of ztest_run()
2355 * will verify that the log really does contain this record.
2357 mutex_enter(&zilog
->zl_lock
);
2358 ASSERT(zd
->zd_shared
!= NULL
);
2359 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2360 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2361 mutex_exit(&zilog
->zl_lock
);
2363 (void) rw_unlock(&zd
->zd_zilog_lock
);
2367 * This function is designed to simulate the operations that occur during a
2368 * mount/unmount operation. We hold the dataset across these operations in an
2369 * attempt to expose any implicit assumptions about ZIL management.
2373 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2375 objset_t
*os
= zd
->zd_os
;
2378 * We grab the zd_dirobj_lock to ensure that no other thread is
2379 * updating the zil (i.e. adding in-memory log records) and the
2380 * zd_zilog_lock to block any I/O.
2382 mutex_enter(&zd
->zd_dirobj_lock
);
2383 (void) rw_wrlock(&zd
->zd_zilog_lock
);
2385 /* zfs_sb_teardown() */
2386 zil_close(zd
->zd_zilog
);
2388 /* zfsvfs_setup() */
2389 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2390 zil_replay(os
, zd
, ztest_replay_vector
);
2392 (void) rw_unlock(&zd
->zd_zilog_lock
);
2393 mutex_exit(&zd
->zd_dirobj_lock
);
2397 * Verify that we can't destroy an active pool, create an existing pool,
2398 * or create a pool with a bad vdev spec.
2402 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2404 ztest_shared_opts_t
*zo
= &ztest_opts
;
2409 * Attempt to create using a bad file.
2411 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2412 VERIFY3U(ENOENT
, ==,
2413 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
));
2414 nvlist_free(nvroot
);
2417 * Attempt to create using a bad mirror.
2419 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2420 VERIFY3U(ENOENT
, ==,
2421 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
));
2422 nvlist_free(nvroot
);
2425 * Attempt to create an existing pool. It shouldn't matter
2426 * what's in the nvroot; we should fail with EEXIST.
2428 (void) rw_rdlock(&ztest_name_lock
);
2429 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2430 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
));
2431 nvlist_free(nvroot
);
2432 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2433 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2434 spa_close(spa
, FTAG
);
2436 (void) rw_unlock(&ztest_name_lock
);
2441 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2444 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2445 uint64_t version
, newversion
;
2446 nvlist_t
*nvroot
, *props
;
2449 mutex_enter(&ztest_vdev_lock
);
2450 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2453 * Clean up from previous runs.
2455 (void) spa_destroy(name
);
2457 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2458 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2461 * If we're configuring a RAIDZ device then make sure that the
2462 * the initial version is capable of supporting that feature.
2464 switch (ztest_opts
.zo_raidz_parity
) {
2467 initial_version
= SPA_VERSION_INITIAL
;
2470 initial_version
= SPA_VERSION_RAIDZ2
;
2473 initial_version
= SPA_VERSION_RAIDZ3
;
2478 * Create a pool with a spa version that can be upgraded. Pick
2479 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2482 version
= ztest_random_spa_version(initial_version
);
2483 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2485 props
= fnvlist_alloc();
2486 fnvlist_add_uint64(props
,
2487 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2488 VERIFY3S(spa_create(name
, nvroot
, props
, NULL
), ==, 0);
2489 fnvlist_free(nvroot
);
2490 fnvlist_free(props
);
2492 VERIFY3S(spa_open(name
, &spa
, FTAG
), ==, 0);
2493 VERIFY3U(spa_version(spa
), ==, version
);
2494 newversion
= ztest_random_spa_version(version
+ 1);
2496 if (ztest_opts
.zo_verbose
>= 4) {
2497 (void) printf("upgrading spa version from %llu to %llu\n",
2498 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2501 spa_upgrade(spa
, newversion
);
2502 VERIFY3U(spa_version(spa
), >, version
);
2503 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2504 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2505 spa_close(spa
, FTAG
);
2508 mutex_exit(&ztest_vdev_lock
);
2512 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2517 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2520 for (c
= 0; c
< vd
->vdev_children
; c
++)
2521 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2529 * Find the first available hole which can be used as a top-level.
2532 find_vdev_hole(spa_t
*spa
)
2534 vdev_t
*rvd
= spa
->spa_root_vdev
;
2537 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2539 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2540 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2542 if (cvd
->vdev_ishole
)
2549 * Verify that vdev_add() works as expected.
2553 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2555 ztest_shared_t
*zs
= ztest_shared
;
2556 spa_t
*spa
= ztest_spa
;
2562 mutex_enter(&ztest_vdev_lock
);
2563 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2565 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2567 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2570 * If we have slogs then remove them 1/4 of the time.
2572 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2574 * Grab the guid from the head of the log class rotor.
2576 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2578 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2581 * We have to grab the zs_name_lock as writer to
2582 * prevent a race between removing a slog (dmu_objset_find)
2583 * and destroying a dataset. Removing the slog will
2584 * grab a reference on the dataset which may cause
2585 * dsl_destroy_head() to fail with EBUSY thus
2586 * leaving the dataset in an inconsistent state.
2588 rw_wrlock(&ztest_name_lock
);
2589 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2590 rw_unlock(&ztest_name_lock
);
2592 if (error
&& error
!= EEXIST
)
2593 fatal(0, "spa_vdev_remove() = %d", error
);
2595 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2598 * Make 1/4 of the devices be log devices.
2600 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2601 ztest_opts
.zo_vdev_size
, 0,
2602 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2605 error
= spa_vdev_add(spa
, nvroot
);
2606 nvlist_free(nvroot
);
2608 if (error
== ENOSPC
)
2609 ztest_record_enospc("spa_vdev_add");
2610 else if (error
!= 0)
2611 fatal(0, "spa_vdev_add() = %d", error
);
2614 mutex_exit(&ztest_vdev_lock
);
2618 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2622 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2624 ztest_shared_t
*zs
= ztest_shared
;
2625 spa_t
*spa
= ztest_spa
;
2626 vdev_t
*rvd
= spa
->spa_root_vdev
;
2627 spa_aux_vdev_t
*sav
;
2633 path
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2635 if (ztest_random(2) == 0) {
2636 sav
= &spa
->spa_spares
;
2637 aux
= ZPOOL_CONFIG_SPARES
;
2639 sav
= &spa
->spa_l2cache
;
2640 aux
= ZPOOL_CONFIG_L2CACHE
;
2643 mutex_enter(&ztest_vdev_lock
);
2645 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2647 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2649 * Pick a random device to remove.
2651 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2654 * Find an unused device we can add.
2656 zs
->zs_vdev_aux
= 0;
2659 (void) snprintf(path
, MAXPATHLEN
, ztest_aux_template
,
2660 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2662 for (c
= 0; c
< sav
->sav_count
; c
++)
2663 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2666 if (c
== sav
->sav_count
&&
2667 vdev_lookup_by_path(rvd
, path
) == NULL
)
2673 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2679 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2680 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2681 error
= spa_vdev_add(spa
, nvroot
);
2683 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2684 nvlist_free(nvroot
);
2687 * Remove an existing device. Sometimes, dirty its
2688 * vdev state first to make sure we handle removal
2689 * of devices that have pending state changes.
2691 if (ztest_random(2) == 0)
2692 (void) vdev_online(spa
, guid
, 0, NULL
);
2694 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2695 if (error
!= 0 && error
!= EBUSY
)
2696 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2699 mutex_exit(&ztest_vdev_lock
);
2701 umem_free(path
, MAXPATHLEN
);
2705 * split a pool if it has mirror tlvdevs
2709 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2711 ztest_shared_t
*zs
= ztest_shared
;
2712 spa_t
*spa
= ztest_spa
;
2713 vdev_t
*rvd
= spa
->spa_root_vdev
;
2714 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2715 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2718 mutex_enter(&ztest_vdev_lock
);
2720 /* ensure we have a useable config; mirrors of raidz aren't supported */
2721 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
2722 mutex_exit(&ztest_vdev_lock
);
2726 /* clean up the old pool, if any */
2727 (void) spa_destroy("splitp");
2729 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2731 /* generate a config from the existing config */
2732 mutex_enter(&spa
->spa_props_lock
);
2733 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
2735 mutex_exit(&spa
->spa_props_lock
);
2737 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
2740 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
2741 for (c
= 0; c
< children
; c
++) {
2742 vdev_t
*tvd
= rvd
->vdev_child
[c
];
2746 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
2747 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
2749 VERIFY(nvlist_add_string(schild
[schildren
],
2750 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
2751 VERIFY(nvlist_add_uint64(schild
[schildren
],
2752 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
2754 lastlogid
= schildren
;
2759 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
2760 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
2761 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
2764 /* OK, create a config that can be used to split */
2765 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
2766 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
2767 VDEV_TYPE_ROOT
) == 0);
2768 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
2769 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
2771 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
2772 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
2774 for (c
= 0; c
< schildren
; c
++)
2775 nvlist_free(schild
[c
]);
2779 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2781 (void) rw_wrlock(&ztest_name_lock
);
2782 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
2783 (void) rw_unlock(&ztest_name_lock
);
2785 nvlist_free(config
);
2788 (void) printf("successful split - results:\n");
2789 mutex_enter(&spa_namespace_lock
);
2790 show_pool_stats(spa
);
2791 show_pool_stats(spa_lookup("splitp"));
2792 mutex_exit(&spa_namespace_lock
);
2796 mutex_exit(&ztest_vdev_lock
);
2801 * Verify that we can attach and detach devices.
2805 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
2807 ztest_shared_t
*zs
= ztest_shared
;
2808 spa_t
*spa
= ztest_spa
;
2809 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
2810 vdev_t
*rvd
= spa
->spa_root_vdev
;
2811 vdev_t
*oldvd
, *newvd
, *pvd
;
2815 uint64_t ashift
= ztest_get_ashift();
2816 uint64_t oldguid
, pguid
;
2817 uint64_t oldsize
, newsize
;
2818 char *oldpath
, *newpath
;
2820 int oldvd_has_siblings
= B_FALSE
;
2821 int newvd_is_spare
= B_FALSE
;
2823 int error
, expected_error
;
2825 oldpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2826 newpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2828 mutex_enter(&ztest_vdev_lock
);
2829 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
2831 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2834 * Decide whether to do an attach or a replace.
2836 replacing
= ztest_random(2);
2839 * Pick a random top-level vdev.
2841 top
= ztest_random_vdev_top(spa
, B_TRUE
);
2844 * Pick a random leaf within it.
2846 leaf
= ztest_random(leaves
);
2851 oldvd
= rvd
->vdev_child
[top
];
2852 if (zs
->zs_mirrors
>= 1) {
2853 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
2854 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
2855 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
2857 if (ztest_opts
.zo_raidz
> 1) {
2858 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
2859 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
2860 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
2864 * If we're already doing an attach or replace, oldvd may be a
2865 * mirror vdev -- in which case, pick a random child.
2867 while (oldvd
->vdev_children
!= 0) {
2868 oldvd_has_siblings
= B_TRUE
;
2869 ASSERT(oldvd
->vdev_children
>= 2);
2870 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
2873 oldguid
= oldvd
->vdev_guid
;
2874 oldsize
= vdev_get_min_asize(oldvd
);
2875 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
2876 (void) strcpy(oldpath
, oldvd
->vdev_path
);
2877 pvd
= oldvd
->vdev_parent
;
2878 pguid
= pvd
->vdev_guid
;
2881 * If oldvd has siblings, then half of the time, detach it.
2883 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
2884 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2885 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
2886 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
2888 fatal(0, "detach (%s) returned %d", oldpath
, error
);
2893 * For the new vdev, choose with equal probability between the two
2894 * standard paths (ending in either 'a' or 'b') or a random hot spare.
2896 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
2897 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
2898 newvd_is_spare
= B_TRUE
;
2899 (void) strcpy(newpath
, newvd
->vdev_path
);
2901 (void) snprintf(newpath
, MAXPATHLEN
, ztest_dev_template
,
2902 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
2903 top
* leaves
+ leaf
);
2904 if (ztest_random(2) == 0)
2905 newpath
[strlen(newpath
) - 1] = 'b';
2906 newvd
= vdev_lookup_by_path(rvd
, newpath
);
2910 newsize
= vdev_get_min_asize(newvd
);
2913 * Make newsize a little bigger or smaller than oldsize.
2914 * If it's smaller, the attach should fail.
2915 * If it's larger, and we're doing a replace,
2916 * we should get dynamic LUN growth when we're done.
2918 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
2922 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
2923 * unless it's a replace; in that case any non-replacing parent is OK.
2925 * If newvd is already part of the pool, it should fail with EBUSY.
2927 * If newvd is too small, it should fail with EOVERFLOW.
2929 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
2930 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
2931 pvd
->vdev_ops
== &vdev_replacing_ops
||
2932 pvd
->vdev_ops
== &vdev_spare_ops
))
2933 expected_error
= ENOTSUP
;
2934 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
2935 expected_error
= ENOTSUP
;
2936 else if (newvd
== oldvd
)
2937 expected_error
= replacing
? 0 : EBUSY
;
2938 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
2939 expected_error
= EBUSY
;
2940 else if (newsize
< oldsize
)
2941 expected_error
= EOVERFLOW
;
2942 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
2943 expected_error
= EDOM
;
2947 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2950 * Build the nvlist describing newpath.
2952 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
2953 ashift
, 0, 0, 0, 1);
2955 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
2960 * If our parent was the replacing vdev, but the replace completed,
2961 * then instead of failing with ENOTSUP we may either succeed,
2962 * fail with ENODEV, or fail with EOVERFLOW.
2964 if (expected_error
== ENOTSUP
&&
2965 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
2966 expected_error
= error
;
2969 * If someone grew the LUN, the replacement may be too small.
2971 if (error
== EOVERFLOW
|| error
== EBUSY
)
2972 expected_error
= error
;
2974 /* XXX workaround 6690467 */
2975 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
2976 fatal(0, "attach (%s %llu, %s %llu, %d) "
2977 "returned %d, expected %d",
2978 oldpath
, oldsize
, newpath
,
2979 newsize
, replacing
, error
, expected_error
);
2982 mutex_exit(&ztest_vdev_lock
);
2984 umem_free(oldpath
, MAXPATHLEN
);
2985 umem_free(newpath
, MAXPATHLEN
);
2989 * Callback function which expands the physical size of the vdev.
2992 grow_vdev(vdev_t
*vd
, void *arg
)
2994 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
2995 size_t *newsize
= arg
;
2999 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3000 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3002 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
3005 fsize
= lseek(fd
, 0, SEEK_END
);
3006 VERIFY(ftruncate(fd
, *newsize
) == 0);
3008 if (ztest_opts
.zo_verbose
>= 6) {
3009 (void) printf("%s grew from %lu to %lu bytes\n",
3010 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
3017 * Callback function which expands a given vdev by calling vdev_online().
3021 online_vdev(vdev_t
*vd
, void *arg
)
3023 spa_t
*spa
= vd
->vdev_spa
;
3024 vdev_t
*tvd
= vd
->vdev_top
;
3025 uint64_t guid
= vd
->vdev_guid
;
3026 uint64_t generation
= spa
->spa_config_generation
+ 1;
3027 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
3030 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3031 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3033 /* Calling vdev_online will initialize the new metaslabs */
3034 spa_config_exit(spa
, SCL_STATE
, spa
);
3035 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
3036 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3039 * If vdev_online returned an error or the underlying vdev_open
3040 * failed then we abort the expand. The only way to know that
3041 * vdev_open fails is by checking the returned newstate.
3043 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
3044 if (ztest_opts
.zo_verbose
>= 5) {
3045 (void) printf("Unable to expand vdev, state %llu, "
3046 "error %d\n", (u_longlong_t
)newstate
, error
);
3050 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
3053 * Since we dropped the lock we need to ensure that we're
3054 * still talking to the original vdev. It's possible this
3055 * vdev may have been detached/replaced while we were
3056 * trying to online it.
3058 if (generation
!= spa
->spa_config_generation
) {
3059 if (ztest_opts
.zo_verbose
>= 5) {
3060 (void) printf("vdev configuration has changed, "
3061 "guid %llu, state %llu, expected gen %llu, "
3064 (u_longlong_t
)tvd
->vdev_state
,
3065 (u_longlong_t
)generation
,
3066 (u_longlong_t
)spa
->spa_config_generation
);
3074 * Traverse the vdev tree calling the supplied function.
3075 * We continue to walk the tree until we either have walked all
3076 * children or we receive a non-NULL return from the callback.
3077 * If a NULL callback is passed, then we just return back the first
3078 * leaf vdev we encounter.
3081 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
3085 if (vd
->vdev_ops
->vdev_op_leaf
) {
3089 return (func(vd
, arg
));
3092 for (c
= 0; c
< vd
->vdev_children
; c
++) {
3093 vdev_t
*cvd
= vd
->vdev_child
[c
];
3094 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3101 * Verify that dynamic LUN growth works as expected.
3105 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3107 spa_t
*spa
= ztest_spa
;
3109 metaslab_class_t
*mc
;
3110 metaslab_group_t
*mg
;
3111 size_t psize
, newsize
;
3113 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3115 mutex_enter(&ztest_vdev_lock
);
3116 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3118 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3120 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3123 old_ms_count
= tvd
->vdev_ms_count
;
3124 old_class_space
= metaslab_class_get_space(mc
);
3127 * Determine the size of the first leaf vdev associated with
3128 * our top-level device.
3130 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3131 ASSERT3P(vd
, !=, NULL
);
3132 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3134 psize
= vd
->vdev_psize
;
3137 * We only try to expand the vdev if it's healthy, less than 4x its
3138 * original size, and it has a valid psize.
3140 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3141 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3142 spa_config_exit(spa
, SCL_STATE
, spa
);
3143 mutex_exit(&ztest_vdev_lock
);
3147 newsize
= psize
+ psize
/ 8;
3148 ASSERT3U(newsize
, >, psize
);
3150 if (ztest_opts
.zo_verbose
>= 6) {
3151 (void) printf("Expanding LUN %s from %lu to %lu\n",
3152 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3156 * Growing the vdev is a two step process:
3157 * 1). expand the physical size (i.e. relabel)
3158 * 2). online the vdev to create the new metaslabs
3160 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3161 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3162 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3163 if (ztest_opts
.zo_verbose
>= 5) {
3164 (void) printf("Could not expand LUN because "
3165 "the vdev configuration changed.\n");
3167 spa_config_exit(spa
, SCL_STATE
, spa
);
3168 mutex_exit(&ztest_vdev_lock
);
3172 spa_config_exit(spa
, SCL_STATE
, spa
);
3175 * Expanding the LUN will update the config asynchronously,
3176 * thus we must wait for the async thread to complete any
3177 * pending tasks before proceeding.
3181 mutex_enter(&spa
->spa_async_lock
);
3182 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3183 mutex_exit(&spa
->spa_async_lock
);
3186 txg_wait_synced(spa_get_dsl(spa
), 0);
3187 (void) poll(NULL
, 0, 100);
3190 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3192 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3193 new_ms_count
= tvd
->vdev_ms_count
;
3194 new_class_space
= metaslab_class_get_space(mc
);
3196 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3197 if (ztest_opts
.zo_verbose
>= 5) {
3198 (void) printf("Could not verify LUN expansion due to "
3199 "intervening vdev offline or remove.\n");
3201 spa_config_exit(spa
, SCL_STATE
, spa
);
3202 mutex_exit(&ztest_vdev_lock
);
3207 * Make sure we were able to grow the vdev.
3209 if (new_ms_count
<= old_ms_count
)
3210 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3211 old_ms_count
, new_ms_count
);
3214 * Make sure we were able to grow the pool.
3216 if (new_class_space
<= old_class_space
)
3217 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3218 old_class_space
, new_class_space
);
3220 if (ztest_opts
.zo_verbose
>= 5) {
3221 char oldnumbuf
[6], newnumbuf
[6];
3223 nicenum(old_class_space
, oldnumbuf
);
3224 nicenum(new_class_space
, newnumbuf
);
3225 (void) printf("%s grew from %s to %s\n",
3226 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3229 spa_config_exit(spa
, SCL_STATE
, spa
);
3230 mutex_exit(&ztest_vdev_lock
);
3234 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3238 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3241 * Create the objects common to all ztest datasets.
3243 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3244 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3248 ztest_dataset_create(char *dsname
)
3250 uint64_t zilset
= ztest_random(100);
3251 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3252 ztest_objset_create_cb
, NULL
);
3254 if (err
|| zilset
< 80)
3257 if (ztest_opts
.zo_verbose
>= 5)
3258 (void) printf("Setting dataset %s to sync always\n", dsname
);
3259 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3260 ZFS_SYNC_ALWAYS
, B_FALSE
));
3265 ztest_objset_destroy_cb(const char *name
, void *arg
)
3268 dmu_object_info_t doi
;
3272 * Verify that the dataset contains a directory object.
3274 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
, FTAG
, &os
));
3275 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3276 if (error
!= ENOENT
) {
3277 /* We could have crashed in the middle of destroying it */
3279 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3280 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3282 dmu_objset_disown(os
, FTAG
);
3285 * Destroy the dataset.
3287 if (strchr(name
, '@') != NULL
) {
3288 VERIFY0(dsl_destroy_snapshot(name
, B_FALSE
));
3290 VERIFY0(dsl_destroy_head(name
));
3296 ztest_snapshot_create(char *osname
, uint64_t id
)
3298 char snapname
[MAXNAMELEN
];
3301 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3303 error
= dmu_objset_snapshot_one(osname
, snapname
);
3304 if (error
== ENOSPC
) {
3305 ztest_record_enospc(FTAG
);
3308 if (error
!= 0 && error
!= EEXIST
) {
3309 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3316 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3318 char snapname
[MAXNAMELEN
];
3321 (void) snprintf(snapname
, MAXNAMELEN
, "%s@%llu", osname
,
3324 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3325 if (error
!= 0 && error
!= ENOENT
)
3326 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3332 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3342 zdtmp
= umem_alloc(sizeof (ztest_ds_t
), UMEM_NOFAIL
);
3343 name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3345 (void) rw_rdlock(&ztest_name_lock
);
3347 (void) snprintf(name
, MAXNAMELEN
, "%s/temp_%llu",
3348 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3351 * If this dataset exists from a previous run, process its replay log
3352 * half of the time. If we don't replay it, then dsl_destroy_head()
3353 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3355 if (ztest_random(2) == 0 &&
3356 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3357 ztest_zd_init(zdtmp
, NULL
, os
);
3358 zil_replay(os
, zdtmp
, ztest_replay_vector
);
3359 ztest_zd_fini(zdtmp
);
3360 dmu_objset_disown(os
, FTAG
);
3364 * There may be an old instance of the dataset we're about to
3365 * create lying around from a previous run. If so, destroy it
3366 * and all of its snapshots.
3368 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3369 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3372 * Verify that the destroyed dataset is no longer in the namespace.
3374 VERIFY3U(ENOENT
, ==, dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3378 * Verify that we can create a new dataset.
3380 error
= ztest_dataset_create(name
);
3382 if (error
== ENOSPC
) {
3383 ztest_record_enospc(FTAG
);
3386 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3389 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3391 ztest_zd_init(zdtmp
, NULL
, os
);
3394 * Open the intent log for it.
3396 zilog
= zil_open(os
, ztest_get_data
);
3399 * Put some objects in there, do a little I/O to them,
3400 * and randomly take a couple of snapshots along the way.
3402 iters
= ztest_random(5);
3403 for (i
= 0; i
< iters
; i
++) {
3404 ztest_dmu_object_alloc_free(zdtmp
, id
);
3405 if (ztest_random(iters
) == 0)
3406 (void) ztest_snapshot_create(name
, i
);
3410 * Verify that we cannot create an existing dataset.
3412 VERIFY3U(EEXIST
, ==,
3413 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3416 * Verify that we can hold an objset that is also owned.
3418 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3419 dmu_objset_rele(os2
, FTAG
);
3422 * Verify that we cannot own an objset that is already owned.
3425 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3428 dmu_objset_disown(os
, FTAG
);
3429 ztest_zd_fini(zdtmp
);
3431 (void) rw_unlock(&ztest_name_lock
);
3433 umem_free(name
, MAXNAMELEN
);
3434 umem_free(zdtmp
, sizeof (ztest_ds_t
));
3438 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3441 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3443 (void) rw_rdlock(&ztest_name_lock
);
3444 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3445 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3446 (void) rw_unlock(&ztest_name_lock
);
3450 * Cleanup non-standard snapshots and clones.
3453 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3462 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3463 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3464 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3465 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3466 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3468 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3469 osname
, (u_longlong_t
)id
);
3470 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3471 osname
, (u_longlong_t
)id
);
3472 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3473 clone1name
, (u_longlong_t
)id
);
3474 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3475 osname
, (u_longlong_t
)id
);
3476 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3477 clone1name
, (u_longlong_t
)id
);
3479 error
= dsl_destroy_head(clone2name
);
3480 if (error
&& error
!= ENOENT
)
3481 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3482 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3483 if (error
&& error
!= ENOENT
)
3484 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3485 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3486 if (error
&& error
!= ENOENT
)
3487 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3488 error
= dsl_destroy_head(clone1name
);
3489 if (error
&& error
!= ENOENT
)
3490 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3491 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3492 if (error
&& error
!= ENOENT
)
3493 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3495 umem_free(snap1name
, MAXNAMELEN
);
3496 umem_free(clone1name
, MAXNAMELEN
);
3497 umem_free(snap2name
, MAXNAMELEN
);
3498 umem_free(clone2name
, MAXNAMELEN
);
3499 umem_free(snap3name
, MAXNAMELEN
);
3503 * Verify dsl_dataset_promote handles EBUSY
3506 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3514 char *osname
= zd
->zd_name
;
3517 snap1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3518 clone1name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3519 snap2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3520 clone2name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3521 snap3name
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
3523 (void) rw_rdlock(&ztest_name_lock
);
3525 ztest_dsl_dataset_cleanup(osname
, id
);
3527 (void) snprintf(snap1name
, MAXNAMELEN
, "%s@s1_%llu",
3528 osname
, (u_longlong_t
)id
);
3529 (void) snprintf(clone1name
, MAXNAMELEN
, "%s/c1_%llu",
3530 osname
, (u_longlong_t
)id
);
3531 (void) snprintf(snap2name
, MAXNAMELEN
, "%s@s2_%llu",
3532 clone1name
, (u_longlong_t
)id
);
3533 (void) snprintf(clone2name
, MAXNAMELEN
, "%s/c2_%llu",
3534 osname
, (u_longlong_t
)id
);
3535 (void) snprintf(snap3name
, MAXNAMELEN
, "%s@s3_%llu",
3536 clone1name
, (u_longlong_t
)id
);
3538 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3539 if (error
&& error
!= EEXIST
) {
3540 if (error
== ENOSPC
) {
3541 ztest_record_enospc(FTAG
);
3544 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3547 error
= dmu_objset_clone(clone1name
, snap1name
);
3549 if (error
== ENOSPC
) {
3550 ztest_record_enospc(FTAG
);
3553 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3556 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3557 if (error
&& error
!= EEXIST
) {
3558 if (error
== ENOSPC
) {
3559 ztest_record_enospc(FTAG
);
3562 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3565 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3566 if (error
&& error
!= EEXIST
) {
3567 if (error
== ENOSPC
) {
3568 ztest_record_enospc(FTAG
);
3571 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3574 error
= dmu_objset_clone(clone2name
, snap3name
);
3576 if (error
== ENOSPC
) {
3577 ztest_record_enospc(FTAG
);
3580 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3583 error
= dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, FTAG
, &os
);
3585 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3586 error
= dsl_dataset_promote(clone2name
, NULL
);
3587 if (error
== ENOSPC
) {
3588 dmu_objset_disown(os
, FTAG
);
3589 ztest_record_enospc(FTAG
);
3593 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3595 dmu_objset_disown(os
, FTAG
);
3598 ztest_dsl_dataset_cleanup(osname
, id
);
3600 (void) rw_unlock(&ztest_name_lock
);
3602 umem_free(snap1name
, MAXNAMELEN
);
3603 umem_free(clone1name
, MAXNAMELEN
);
3604 umem_free(snap2name
, MAXNAMELEN
);
3605 umem_free(clone2name
, MAXNAMELEN
);
3606 umem_free(snap3name
, MAXNAMELEN
);
3609 #undef OD_ARRAY_SIZE
3610 #define OD_ARRAY_SIZE 4
3613 * Verify that dmu_object_{alloc,free} work as expected.
3616 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3623 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3624 od
= umem_alloc(size
, UMEM_NOFAIL
);
3625 batchsize
= OD_ARRAY_SIZE
;
3627 for (b
= 0; b
< batchsize
; b
++)
3628 ztest_od_init(od
+ b
, id
, FTAG
, b
, DMU_OT_UINT64_OTHER
, 0, 0);
3631 * Destroy the previous batch of objects, create a new batch,
3632 * and do some I/O on the new objects.
3634 if (ztest_object_init(zd
, od
, size
, B_TRUE
) != 0)
3637 while (ztest_random(4 * batchsize
) != 0)
3638 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3639 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3641 umem_free(od
, size
);
3644 #undef OD_ARRAY_SIZE
3645 #define OD_ARRAY_SIZE 2
3648 * Verify that dmu_{read,write} work as expected.
3651 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3656 objset_t
*os
= zd
->zd_os
;
3657 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3658 od
= umem_alloc(size
, UMEM_NOFAIL
);
3660 int i
, freeit
, error
;
3662 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3663 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3664 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3665 uint64_t regions
= 997;
3666 uint64_t stride
= 123456789ULL;
3667 uint64_t width
= 40;
3668 int free_percent
= 5;
3671 * This test uses two objects, packobj and bigobj, that are always
3672 * updated together (i.e. in the same tx) so that their contents are
3673 * in sync and can be compared. Their contents relate to each other
3674 * in a simple way: packobj is a dense array of 'bufwad' structures,
3675 * while bigobj is a sparse array of the same bufwads. Specifically,
3676 * for any index n, there are three bufwads that should be identical:
3678 * packobj, at offset n * sizeof (bufwad_t)
3679 * bigobj, at the head of the nth chunk
3680 * bigobj, at the tail of the nth chunk
3682 * The chunk size is arbitrary. It doesn't have to be a power of two,
3683 * and it doesn't have any relation to the object blocksize.
3684 * The only requirement is that it can hold at least two bufwads.
3686 * Normally, we write the bufwad to each of these locations.
3687 * However, free_percent of the time we instead write zeroes to
3688 * packobj and perform a dmu_free_range() on bigobj. By comparing
3689 * bigobj to packobj, we can verify that the DMU is correctly
3690 * tracking which parts of an object are allocated and free,
3691 * and that the contents of the allocated blocks are correct.
3695 * Read the directory info. If it's the first time, set things up.
3697 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3698 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3700 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3701 umem_free(od
, size
);
3705 bigobj
= od
[0].od_object
;
3706 packobj
= od
[1].od_object
;
3707 chunksize
= od
[0].od_gen
;
3708 ASSERT(chunksize
== od
[1].od_gen
);
3711 * Prefetch a random chunk of the big object.
3712 * Our aim here is to get some async reads in flight
3713 * for blocks that we may free below; the DMU should
3714 * handle this race correctly.
3716 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3717 s
= 1 + ztest_random(2 * width
- 1);
3718 dmu_prefetch(os
, bigobj
, n
* chunksize
, s
* chunksize
);
3721 * Pick a random index and compute the offsets into packobj and bigobj.
3723 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
3724 s
= 1 + ztest_random(width
- 1);
3726 packoff
= n
* sizeof (bufwad_t
);
3727 packsize
= s
* sizeof (bufwad_t
);
3729 bigoff
= n
* chunksize
;
3730 bigsize
= s
* chunksize
;
3732 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
3733 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3736 * free_percent of the time, free a range of bigobj rather than
3739 freeit
= (ztest_random(100) < free_percent
);
3742 * Read the current contents of our objects.
3744 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
3747 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
3752 * Get a tx for the mods to both packobj and bigobj.
3754 tx
= dmu_tx_create(os
);
3756 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
3759 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
3761 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
3763 /* This accounts for setting the checksum/compression. */
3764 dmu_tx_hold_bonus(tx
, bigobj
);
3766 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
3768 umem_free(packbuf
, packsize
);
3769 umem_free(bigbuf
, bigsize
);
3770 umem_free(od
, size
);
3774 enum zio_checksum cksum
;
3776 cksum
= (enum zio_checksum
)
3777 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
);
3778 } while (cksum
>= ZIO_CHECKSUM_LEGACY_FUNCTIONS
);
3779 dmu_object_set_checksum(os
, bigobj
, cksum
, tx
);
3781 enum zio_compress comp
;
3783 comp
= (enum zio_compress
)
3784 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
);
3785 } while (comp
>= ZIO_COMPRESS_LEGACY_FUNCTIONS
);
3786 dmu_object_set_compress(os
, bigobj
, comp
, tx
);
3789 * For each index from n to n + s, verify that the existing bufwad
3790 * in packobj matches the bufwads at the head and tail of the
3791 * corresponding chunk in bigobj. Then update all three bufwads
3792 * with the new values we want to write out.
3794 for (i
= 0; i
< s
; i
++) {
3796 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3798 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3800 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3802 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3803 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3805 if (pack
->bw_txg
> txg
)
3806 fatal(0, "future leak: got %llx, open txg is %llx",
3809 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3810 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3811 pack
->bw_index
, n
, i
);
3813 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3814 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3816 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3817 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3820 bzero(pack
, sizeof (bufwad_t
));
3822 pack
->bw_index
= n
+ i
;
3824 pack
->bw_data
= 1 + ztest_random(-2ULL);
3831 * We've verified all the old bufwads, and made new ones.
3832 * Now write them out.
3834 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
3837 if (ztest_opts
.zo_verbose
>= 7) {
3838 (void) printf("freeing offset %llx size %llx"
3840 (u_longlong_t
)bigoff
,
3841 (u_longlong_t
)bigsize
,
3844 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
3846 if (ztest_opts
.zo_verbose
>= 7) {
3847 (void) printf("writing offset %llx size %llx"
3849 (u_longlong_t
)bigoff
,
3850 (u_longlong_t
)bigsize
,
3853 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
3859 * Sanity check the stuff we just wrote.
3862 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
3863 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
3865 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
3866 packsize
, packcheck
, DMU_READ_PREFETCH
));
3867 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
3868 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
3870 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
3871 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
3873 umem_free(packcheck
, packsize
);
3874 umem_free(bigcheck
, bigsize
);
3877 umem_free(packbuf
, packsize
);
3878 umem_free(bigbuf
, bigsize
);
3879 umem_free(od
, size
);
3883 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
3884 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
3892 * For each index from n to n + s, verify that the existing bufwad
3893 * in packobj matches the bufwads at the head and tail of the
3894 * corresponding chunk in bigobj. Then update all three bufwads
3895 * with the new values we want to write out.
3897 for (i
= 0; i
< s
; i
++) {
3899 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
3901 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
3903 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
3905 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
3906 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
3908 if (pack
->bw_txg
> txg
)
3909 fatal(0, "future leak: got %llx, open txg is %llx",
3912 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
3913 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
3914 pack
->bw_index
, n
, i
);
3916 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
3917 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
3919 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
3920 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
3922 pack
->bw_index
= n
+ i
;
3924 pack
->bw_data
= 1 + ztest_random(-2ULL);
3931 #undef OD_ARRAY_SIZE
3932 #define OD_ARRAY_SIZE 2
3935 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
3937 objset_t
*os
= zd
->zd_os
;
3944 bufwad_t
*packbuf
, *bigbuf
;
3945 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3946 uint64_t blocksize
= ztest_random_blocksize();
3947 uint64_t chunksize
= blocksize
;
3948 uint64_t regions
= 997;
3949 uint64_t stride
= 123456789ULL;
3951 dmu_buf_t
*bonus_db
;
3952 arc_buf_t
**bigbuf_arcbufs
;
3953 dmu_object_info_t doi
;
3955 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3956 od
= umem_alloc(size
, UMEM_NOFAIL
);
3959 * This test uses two objects, packobj and bigobj, that are always
3960 * updated together (i.e. in the same tx) so that their contents are
3961 * in sync and can be compared. Their contents relate to each other
3962 * in a simple way: packobj is a dense array of 'bufwad' structures,
3963 * while bigobj is a sparse array of the same bufwads. Specifically,
3964 * for any index n, there are three bufwads that should be identical:
3966 * packobj, at offset n * sizeof (bufwad_t)
3967 * bigobj, at the head of the nth chunk
3968 * bigobj, at the tail of the nth chunk
3970 * The chunk size is set equal to bigobj block size so that
3971 * dmu_assign_arcbuf() can be tested for object updates.
3975 * Read the directory info. If it's the first time, set things up.
3977 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
3978 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, chunksize
);
3981 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3982 umem_free(od
, size
);
3986 bigobj
= od
[0].od_object
;
3987 packobj
= od
[1].od_object
;
3988 blocksize
= od
[0].od_blocksize
;
3989 chunksize
= blocksize
;
3990 ASSERT(chunksize
== od
[1].od_gen
);
3992 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
3993 VERIFY(ISP2(doi
.doi_data_block_size
));
3994 VERIFY(chunksize
== doi
.doi_data_block_size
);
3995 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
3998 * Pick a random index and compute the offsets into packobj and bigobj.
4000 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4001 s
= 1 + ztest_random(width
- 1);
4003 packoff
= n
* sizeof (bufwad_t
);
4004 packsize
= s
* sizeof (bufwad_t
);
4006 bigoff
= n
* chunksize
;
4007 bigsize
= s
* chunksize
;
4009 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
4010 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
4012 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
4014 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
4017 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
4018 * Iteration 1 test zcopy to already referenced dbufs.
4019 * Iteration 2 test zcopy to dirty dbuf in the same txg.
4020 * Iteration 3 test zcopy to dbuf dirty in previous txg.
4021 * Iteration 4 test zcopy when dbuf is no longer dirty.
4022 * Iteration 5 test zcopy when it can't be done.
4023 * Iteration 6 one more zcopy write.
4025 for (i
= 0; i
< 7; i
++) {
4030 * In iteration 5 (i == 5) use arcbufs
4031 * that don't match bigobj blksz to test
4032 * dmu_assign_arcbuf() when it can't directly
4033 * assign an arcbuf to a dbuf.
4035 for (j
= 0; j
< s
; j
++) {
4038 dmu_request_arcbuf(bonus_db
, chunksize
);
4040 bigbuf_arcbufs
[2 * j
] =
4041 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4042 bigbuf_arcbufs
[2 * j
+ 1] =
4043 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4048 * Get a tx for the mods to both packobj and bigobj.
4050 tx
= dmu_tx_create(os
);
4052 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4053 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4055 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4057 umem_free(packbuf
, packsize
);
4058 umem_free(bigbuf
, bigsize
);
4059 for (j
= 0; j
< s
; j
++) {
4061 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
4064 bigbuf_arcbufs
[2 * j
]);
4066 bigbuf_arcbufs
[2 * j
+ 1]);
4069 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4070 umem_free(od
, size
);
4071 dmu_buf_rele(bonus_db
, FTAG
);
4076 * 50% of the time don't read objects in the 1st iteration to
4077 * test dmu_assign_arcbuf() for the case when there're no
4078 * existing dbufs for the specified offsets.
4080 if (i
!= 0 || ztest_random(2) != 0) {
4081 error
= dmu_read(os
, packobj
, packoff
,
4082 packsize
, packbuf
, DMU_READ_PREFETCH
);
4084 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
4085 bigbuf
, DMU_READ_PREFETCH
);
4088 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
4092 * We've verified all the old bufwads, and made new ones.
4093 * Now write them out.
4095 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4096 if (ztest_opts
.zo_verbose
>= 7) {
4097 (void) printf("writing offset %llx size %llx"
4099 (u_longlong_t
)bigoff
,
4100 (u_longlong_t
)bigsize
,
4103 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
4106 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4107 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
4109 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4110 bigbuf_arcbufs
[2 * j
]->b_data
,
4112 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
4114 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
4119 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
4120 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
4123 dmu_assign_arcbuf(bonus_db
, off
,
4124 bigbuf_arcbufs
[j
], tx
);
4126 dmu_assign_arcbuf(bonus_db
, off
,
4127 bigbuf_arcbufs
[2 * j
], tx
);
4128 dmu_assign_arcbuf(bonus_db
,
4129 off
+ chunksize
/ 2,
4130 bigbuf_arcbufs
[2 * j
+ 1], tx
);
4133 dmu_buf_rele(dbt
, FTAG
);
4139 * Sanity check the stuff we just wrote.
4142 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4143 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4145 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4146 packsize
, packcheck
, DMU_READ_PREFETCH
));
4147 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4148 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4150 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4151 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4153 umem_free(packcheck
, packsize
);
4154 umem_free(bigcheck
, bigsize
);
4157 txg_wait_open(dmu_objset_pool(os
), 0);
4158 } else if (i
== 3) {
4159 txg_wait_synced(dmu_objset_pool(os
), 0);
4163 dmu_buf_rele(bonus_db
, FTAG
);
4164 umem_free(packbuf
, packsize
);
4165 umem_free(bigbuf
, bigsize
);
4166 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4167 umem_free(od
, size
);
4172 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
4176 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4177 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
4178 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4181 * Have multiple threads write to large offsets in an object
4182 * to verify that parallel writes to an object -- even to the
4183 * same blocks within the object -- doesn't cause any trouble.
4185 ztest_od_init(od
, ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4187 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0)
4190 while (ztest_random(10) != 0)
4191 ztest_io(zd
, od
->od_object
, offset
);
4193 umem_free(od
, sizeof (ztest_od_t
));
4197 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4200 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4201 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4202 uint64_t count
= ztest_random(20) + 1;
4203 uint64_t blocksize
= ztest_random_blocksize();
4206 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4208 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
4210 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4211 !ztest_random(2)) != 0) {
4212 umem_free(od
, sizeof (ztest_od_t
));
4216 if (ztest_truncate(zd
, od
->od_object
, offset
, count
* blocksize
) != 0) {
4217 umem_free(od
, sizeof (ztest_od_t
));
4221 ztest_prealloc(zd
, od
->od_object
, offset
, count
* blocksize
);
4223 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4225 while (ztest_random(count
) != 0) {
4226 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4227 if (ztest_write(zd
, od
->od_object
, randoff
, blocksize
,
4230 while (ztest_random(4) != 0)
4231 ztest_io(zd
, od
->od_object
, randoff
);
4234 umem_free(data
, blocksize
);
4235 umem_free(od
, sizeof (ztest_od_t
));
4239 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4241 #define ZTEST_ZAP_MIN_INTS 1
4242 #define ZTEST_ZAP_MAX_INTS 4
4243 #define ZTEST_ZAP_MAX_PROPS 1000
4246 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4248 objset_t
*os
= zd
->zd_os
;
4251 uint64_t txg
, last_txg
;
4252 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4253 uint64_t zl_ints
, zl_intsize
, prop
;
4256 char propname
[100], txgname
[100];
4258 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4260 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4261 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4263 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4264 !ztest_random(2)) != 0)
4267 object
= od
->od_object
;
4270 * Generate a known hash collision, and verify that
4271 * we can lookup and remove both entries.
4273 tx
= dmu_tx_create(os
);
4274 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4275 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4278 for (i
= 0; i
< 2; i
++) {
4280 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4283 for (i
= 0; i
< 2; i
++) {
4284 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4285 sizeof (uint64_t), 1, &value
[i
], tx
));
4287 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4288 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4289 ASSERT3U(zl_ints
, ==, 1);
4291 for (i
= 0; i
< 2; i
++) {
4292 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4297 * Generate a buch of random entries.
4299 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4301 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4302 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4303 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4304 bzero(value
, sizeof (value
));
4308 * If these zap entries already exist, validate their contents.
4310 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4312 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4313 ASSERT3U(zl_ints
, ==, 1);
4315 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4316 zl_ints
, &last_txg
) == 0);
4318 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4321 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4322 ASSERT3U(zl_ints
, ==, ints
);
4324 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4325 zl_ints
, value
) == 0);
4327 for (i
= 0; i
< ints
; i
++) {
4328 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4331 ASSERT3U(error
, ==, ENOENT
);
4335 * Atomically update two entries in our zap object.
4336 * The first is named txg_%llu, and contains the txg
4337 * in which the property was last updated. The second
4338 * is named prop_%llu, and the nth element of its value
4339 * should be txg + object + n.
4341 tx
= dmu_tx_create(os
);
4342 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4343 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4348 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4350 for (i
= 0; i
< ints
; i
++)
4351 value
[i
] = txg
+ object
+ i
;
4353 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4355 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4361 * Remove a random pair of entries.
4363 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4364 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4365 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4367 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4369 if (error
== ENOENT
)
4374 tx
= dmu_tx_create(os
);
4375 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4376 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4379 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4380 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4383 umem_free(od
, sizeof (ztest_od_t
));
4387 * Testcase to test the upgrading of a microzap to fatzap.
4390 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4392 objset_t
*os
= zd
->zd_os
;
4394 uint64_t object
, txg
;
4397 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4398 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0);
4400 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4401 !ztest_random(2)) != 0)
4403 object
= od
->od_object
;
4406 * Add entries to this ZAP and make sure it spills over
4407 * and gets upgraded to a fatzap. Also, since we are adding
4408 * 2050 entries we should see ptrtbl growth and leaf-block split.
4410 for (i
= 0; i
< 2050; i
++) {
4411 char name
[MAXNAMELEN
];
4416 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4417 (u_longlong_t
)id
, (u_longlong_t
)value
);
4419 tx
= dmu_tx_create(os
);
4420 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4421 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4424 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4426 ASSERT(error
== 0 || error
== EEXIST
);
4430 umem_free(od
, sizeof (ztest_od_t
));
4435 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4437 objset_t
*os
= zd
->zd_os
;
4439 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4441 int i
, namelen
, error
;
4442 int micro
= ztest_random(2);
4443 char name
[20], string_value
[20];
4446 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4447 ztest_od_init(od
, ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0);
4449 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4450 umem_free(od
, sizeof (ztest_od_t
));
4454 object
= od
->od_object
;
4457 * Generate a random name of the form 'xxx.....' where each
4458 * x is a random printable character and the dots are dots.
4459 * There are 94 such characters, and the name length goes from
4460 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4462 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4464 for (i
= 0; i
< 3; i
++)
4465 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4466 for (; i
< namelen
- 1; i
++)
4470 if ((namelen
& 1) || micro
) {
4471 wsize
= sizeof (txg
);
4477 data
= string_value
;
4481 VERIFY0(zap_count(os
, object
, &count
));
4482 ASSERT(count
!= -1ULL);
4485 * Select an operation: length, lookup, add, update, remove.
4487 i
= ztest_random(5);
4490 tx
= dmu_tx_create(os
);
4491 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4492 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4495 bcopy(name
, string_value
, namelen
);
4499 bzero(string_value
, namelen
);
4505 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4507 ASSERT3U(wsize
, ==, zl_wsize
);
4508 ASSERT3U(wc
, ==, zl_wc
);
4510 ASSERT3U(error
, ==, ENOENT
);
4515 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4517 if (data
== string_value
&&
4518 bcmp(name
, data
, namelen
) != 0)
4519 fatal(0, "name '%s' != val '%s' len %d",
4520 name
, data
, namelen
);
4522 ASSERT3U(error
, ==, ENOENT
);
4527 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4528 ASSERT(error
== 0 || error
== EEXIST
);
4532 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4536 error
= zap_remove(os
, object
, name
, tx
);
4537 ASSERT(error
== 0 || error
== ENOENT
);
4544 umem_free(od
, sizeof (ztest_od_t
));
4548 * Commit callback data.
4550 typedef struct ztest_cb_data
{
4551 list_node_t zcd_node
;
4553 int zcd_expected_err
;
4554 boolean_t zcd_added
;
4555 boolean_t zcd_called
;
4559 /* This is the actual commit callback function */
4561 ztest_commit_callback(void *arg
, int error
)
4563 ztest_cb_data_t
*data
= arg
;
4564 uint64_t synced_txg
;
4566 VERIFY(data
!= NULL
);
4567 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4568 VERIFY(!data
->zcd_called
);
4570 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4571 if (data
->zcd_txg
> synced_txg
)
4572 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4573 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4576 data
->zcd_called
= B_TRUE
;
4578 if (error
== ECANCELED
) {
4579 ASSERT0(data
->zcd_txg
);
4580 ASSERT(!data
->zcd_added
);
4583 * The private callback data should be destroyed here, but
4584 * since we are going to check the zcd_called field after
4585 * dmu_tx_abort(), we will destroy it there.
4590 ASSERT(data
->zcd_added
);
4591 ASSERT3U(data
->zcd_txg
, !=, 0);
4593 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4595 /* See if this cb was called more quickly */
4596 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4597 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4599 /* Remove our callback from the list */
4600 list_remove(&zcl
.zcl_callbacks
, data
);
4602 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4604 umem_free(data
, sizeof (ztest_cb_data_t
));
4607 /* Allocate and initialize callback data structure */
4608 static ztest_cb_data_t
*
4609 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4611 ztest_cb_data_t
*cb_data
;
4613 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4615 cb_data
->zcd_txg
= txg
;
4616 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4617 list_link_init(&cb_data
->zcd_node
);
4623 * Commit callback test.
4626 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4628 objset_t
*os
= zd
->zd_os
;
4631 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4632 uint64_t old_txg
, txg
;
4635 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4636 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0);
4638 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4639 umem_free(od
, sizeof (ztest_od_t
));
4643 tx
= dmu_tx_create(os
);
4645 cb_data
[0] = ztest_create_cb_data(os
, 0);
4646 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4648 dmu_tx_hold_write(tx
, od
->od_object
, 0, sizeof (uint64_t));
4650 /* Every once in a while, abort the transaction on purpose */
4651 if (ztest_random(100) == 0)
4655 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4657 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4659 cb_data
[0]->zcd_txg
= txg
;
4660 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4661 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4665 * It's not a strict requirement to call the registered
4666 * callbacks from inside dmu_tx_abort(), but that's what
4667 * it's supposed to happen in the current implementation
4668 * so we will check for that.
4670 for (i
= 0; i
< 2; i
++) {
4671 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4672 VERIFY(!cb_data
[i
]->zcd_called
);
4677 for (i
= 0; i
< 2; i
++) {
4678 VERIFY(cb_data
[i
]->zcd_called
);
4679 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4682 umem_free(od
, sizeof (ztest_od_t
));
4686 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4687 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4690 * Read existing data to make sure there isn't a future leak.
4692 VERIFY(0 == dmu_read(os
, od
->od_object
, 0, sizeof (uint64_t),
4693 &old_txg
, DMU_READ_PREFETCH
));
4696 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4699 dmu_write(os
, od
->od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4701 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4704 * Since commit callbacks don't have any ordering requirement and since
4705 * it is theoretically possible for a commit callback to be called
4706 * after an arbitrary amount of time has elapsed since its txg has been
4707 * synced, it is difficult to reliably determine whether a commit
4708 * callback hasn't been called due to high load or due to a flawed
4711 * In practice, we will assume that if after a certain number of txgs a
4712 * commit callback hasn't been called, then most likely there's an
4713 * implementation bug..
4715 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
4716 if (tmp_cb
!= NULL
&&
4717 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
4718 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
4719 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
4723 * Let's find the place to insert our callbacks.
4725 * Even though the list is ordered by txg, it is possible for the
4726 * insertion point to not be the end because our txg may already be
4727 * quiescing at this point and other callbacks in the open txg
4728 * (from other objsets) may have sneaked in.
4730 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
4731 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
4732 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
4734 /* Add the 3 callbacks to the list */
4735 for (i
= 0; i
< 3; i
++) {
4737 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
4739 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
4742 cb_data
[i
]->zcd_added
= B_TRUE
;
4743 VERIFY(!cb_data
[i
]->zcd_called
);
4745 tmp_cb
= cb_data
[i
];
4750 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4754 umem_free(od
, sizeof (ztest_od_t
));
4759 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4761 zfs_prop_t proplist
[] = {
4763 ZFS_PROP_COMPRESSION
,
4769 (void) rw_rdlock(&ztest_name_lock
);
4771 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
4772 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
4773 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
4775 (void) rw_unlock(&ztest_name_lock
);
4780 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
4782 nvlist_t
*props
= NULL
;
4784 (void) rw_rdlock(&ztest_name_lock
);
4786 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
4787 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
4789 VERIFY0(spa_prop_get(ztest_spa
, &props
));
4791 if (ztest_opts
.zo_verbose
>= 6)
4792 dump_nvlist(props
, 4);
4796 (void) rw_unlock(&ztest_name_lock
);
4800 user_release_one(const char *snapname
, const char *holdname
)
4802 nvlist_t
*snaps
, *holds
;
4805 snaps
= fnvlist_alloc();
4806 holds
= fnvlist_alloc();
4807 fnvlist_add_boolean(holds
, holdname
);
4808 fnvlist_add_nvlist(snaps
, snapname
, holds
);
4809 fnvlist_free(holds
);
4810 error
= dsl_dataset_user_release(snaps
, NULL
);
4811 fnvlist_free(snaps
);
4816 * Test snapshot hold/release and deferred destroy.
4819 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
4822 objset_t
*os
= zd
->zd_os
;
4826 char clonename
[100];
4828 char osname
[MAXNAMELEN
];
4831 (void) rw_rdlock(&ztest_name_lock
);
4833 dmu_objset_name(os
, osname
);
4835 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu",
4837 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
4838 (void) snprintf(clonename
, sizeof (clonename
),
4839 "%s/ch1_%llu", osname
, (u_longlong_t
)id
);
4840 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", (u_longlong_t
)id
);
4843 * Clean up from any previous run.
4845 error
= dsl_destroy_head(clonename
);
4846 if (error
!= ENOENT
)
4848 error
= user_release_one(fullname
, tag
);
4849 if (error
!= ESRCH
&& error
!= ENOENT
)
4851 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4852 if (error
!= ENOENT
)
4856 * Create snapshot, clone it, mark snap for deferred destroy,
4857 * destroy clone, verify snap was also destroyed.
4859 error
= dmu_objset_snapshot_one(osname
, snapname
);
4861 if (error
== ENOSPC
) {
4862 ztest_record_enospc("dmu_objset_snapshot");
4865 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4868 error
= dmu_objset_clone(clonename
, fullname
);
4870 if (error
== ENOSPC
) {
4871 ztest_record_enospc("dmu_objset_clone");
4874 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
4877 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4879 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4883 error
= dsl_destroy_head(clonename
);
4885 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
4887 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
4888 if (error
!= ENOENT
)
4889 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
4892 * Create snapshot, add temporary hold, verify that we can't
4893 * destroy a held snapshot, mark for deferred destroy,
4894 * release hold, verify snapshot was destroyed.
4896 error
= dmu_objset_snapshot_one(osname
, snapname
);
4898 if (error
== ENOSPC
) {
4899 ztest_record_enospc("dmu_objset_snapshot");
4902 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
4905 holds
= fnvlist_alloc();
4906 fnvlist_add_string(holds
, fullname
, tag
);
4907 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
4908 fnvlist_free(holds
);
4910 if (error
== ENOSPC
) {
4911 ztest_record_enospc("dsl_dataset_user_hold");
4914 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
4915 fullname
, tag
, error
);
4918 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
4919 if (error
!= EBUSY
) {
4920 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
4924 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
4926 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
4930 error
= user_release_one(fullname
, tag
);
4932 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
4934 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
4937 (void) rw_unlock(&ztest_name_lock
);
4941 * Inject random faults into the on-disk data.
4945 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
4947 ztest_shared_t
*zs
= ztest_shared
;
4948 spa_t
*spa
= ztest_spa
;
4952 uint64_t bad
= 0x1990c0ffeedecadeull
;
4957 int bshift
= SPA_MAXBLOCKSHIFT
+ 2; /* don't scrog all labels */
4963 boolean_t islog
= B_FALSE
;
4965 path0
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
4966 pathrand
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
4968 mutex_enter(&ztest_vdev_lock
);
4969 maxfaults
= MAXFAULTS();
4970 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
4971 mirror_save
= zs
->zs_mirrors
;
4972 mutex_exit(&ztest_vdev_lock
);
4974 ASSERT(leaves
>= 1);
4977 * Grab the name lock as reader. There are some operations
4978 * which don't like to have their vdevs changed while
4979 * they are in progress (i.e. spa_change_guid). Those
4980 * operations will have grabbed the name lock as writer.
4982 (void) rw_rdlock(&ztest_name_lock
);
4985 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
4987 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
4989 if (ztest_random(2) == 0) {
4991 * Inject errors on a normal data device or slog device.
4993 top
= ztest_random_vdev_top(spa
, B_TRUE
);
4994 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
4997 * Generate paths to the first leaf in this top-level vdev,
4998 * and to the random leaf we selected. We'll induce transient
4999 * write failures and random online/offline activity on leaf 0,
5000 * and we'll write random garbage to the randomly chosen leaf.
5002 (void) snprintf(path0
, MAXPATHLEN
, ztest_dev_template
,
5003 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5004 top
* leaves
+ zs
->zs_splits
);
5005 (void) snprintf(pathrand
, MAXPATHLEN
, ztest_dev_template
,
5006 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5007 top
* leaves
+ leaf
);
5009 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
5010 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
5014 * If the top-level vdev needs to be resilvered
5015 * then we only allow faults on the device that is
5018 if (vd0
!= NULL
&& maxfaults
!= 1 &&
5019 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
5020 vd0
->vdev_resilver_txg
!= 0)) {
5022 * Make vd0 explicitly claim to be unreadable,
5023 * or unwriteable, or reach behind its back
5024 * and close the underlying fd. We can do this if
5025 * maxfaults == 0 because we'll fail and reexecute,
5026 * and we can do it if maxfaults >= 2 because we'll
5027 * have enough redundancy. If maxfaults == 1, the
5028 * combination of this with injection of random data
5029 * corruption below exceeds the pool's fault tolerance.
5031 vdev_file_t
*vf
= vd0
->vdev_tsd
;
5033 if (vf
!= NULL
&& ztest_random(3) == 0) {
5034 (void) close(vf
->vf_vnode
->v_fd
);
5035 vf
->vf_vnode
->v_fd
= -1;
5036 } else if (ztest_random(2) == 0) {
5037 vd0
->vdev_cant_read
= B_TRUE
;
5039 vd0
->vdev_cant_write
= B_TRUE
;
5041 guid0
= vd0
->vdev_guid
;
5045 * Inject errors on an l2cache device.
5047 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
5049 if (sav
->sav_count
== 0) {
5050 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5051 (void) rw_unlock(&ztest_name_lock
);
5054 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
5055 guid0
= vd0
->vdev_guid
;
5056 (void) strcpy(path0
, vd0
->vdev_path
);
5057 (void) strcpy(pathrand
, vd0
->vdev_path
);
5061 maxfaults
= INT_MAX
; /* no limit on cache devices */
5064 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5065 (void) rw_unlock(&ztest_name_lock
);
5068 * If we can tolerate two or more faults, or we're dealing
5069 * with a slog, randomly online/offline vd0.
5071 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
5072 if (ztest_random(10) < 6) {
5073 int flags
= (ztest_random(2) == 0 ?
5074 ZFS_OFFLINE_TEMPORARY
: 0);
5077 * We have to grab the zs_name_lock as writer to
5078 * prevent a race between offlining a slog and
5079 * destroying a dataset. Offlining the slog will
5080 * grab a reference on the dataset which may cause
5081 * dsl_destroy_head() to fail with EBUSY thus
5082 * leaving the dataset in an inconsistent state.
5085 (void) rw_wrlock(&ztest_name_lock
);
5087 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
5090 (void) rw_unlock(&ztest_name_lock
);
5093 * Ideally we would like to be able to randomly
5094 * call vdev_[on|off]line without holding locks
5095 * to force unpredictable failures but the side
5096 * effects of vdev_[on|off]line prevent us from
5097 * doing so. We grab the ztest_vdev_lock here to
5098 * prevent a race between injection testing and
5101 mutex_enter(&ztest_vdev_lock
);
5102 (void) vdev_online(spa
, guid0
, 0, NULL
);
5103 mutex_exit(&ztest_vdev_lock
);
5111 * We have at least single-fault tolerance, so inject data corruption.
5113 fd
= open(pathrand
, O_RDWR
);
5115 if (fd
== -1) /* we hit a gap in the device namespace */
5118 fsize
= lseek(fd
, 0, SEEK_END
);
5120 while (--iters
!= 0) {
5121 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
5122 (leaves
<< bshift
) + (leaf
<< bshift
) +
5123 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
5125 if (offset
>= fsize
)
5128 mutex_enter(&ztest_vdev_lock
);
5129 if (mirror_save
!= zs
->zs_mirrors
) {
5130 mutex_exit(&ztest_vdev_lock
);
5135 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
5136 fatal(1, "can't inject bad word at 0x%llx in %s",
5139 mutex_exit(&ztest_vdev_lock
);
5141 if (ztest_opts
.zo_verbose
>= 7)
5142 (void) printf("injected bad word into %s,"
5143 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
5148 umem_free(path0
, MAXPATHLEN
);
5149 umem_free(pathrand
, MAXPATHLEN
);
5153 * Verify that DDT repair works as expected.
5156 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
5158 ztest_shared_t
*zs
= ztest_shared
;
5159 spa_t
*spa
= ztest_spa
;
5160 objset_t
*os
= zd
->zd_os
;
5162 uint64_t object
, blocksize
, txg
, pattern
, psize
;
5163 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
5168 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
5171 blocksize
= ztest_random_blocksize();
5172 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
5174 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
5175 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0);
5177 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
5178 umem_free(od
, sizeof (ztest_od_t
));
5183 * Take the name lock as writer to prevent anyone else from changing
5184 * the pool and dataset properies we need to maintain during this test.
5186 (void) rw_wrlock(&ztest_name_lock
);
5188 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
5190 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
5192 (void) rw_unlock(&ztest_name_lock
);
5193 umem_free(od
, sizeof (ztest_od_t
));
5197 object
= od
[0].od_object
;
5198 blocksize
= od
[0].od_blocksize
;
5199 pattern
= zs
->zs_guid
^ dmu_objset_fsid_guid(os
);
5201 ASSERT(object
!= 0);
5203 tx
= dmu_tx_create(os
);
5204 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
5205 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
5207 (void) rw_unlock(&ztest_name_lock
);
5208 umem_free(od
, sizeof (ztest_od_t
));
5213 * Write all the copies of our block.
5215 for (i
= 0; i
< copies
; i
++) {
5216 uint64_t offset
= i
* blocksize
;
5217 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
5218 DMU_READ_NO_PREFETCH
);
5220 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
5221 os
, (long long)object
, (long long) offset
, error
);
5223 ASSERT(db
->db_offset
== offset
);
5224 ASSERT(db
->db_size
== blocksize
);
5225 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5226 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5227 dmu_buf_will_fill(db
, tx
);
5228 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5229 dmu_buf_rele(db
, FTAG
);
5233 txg_wait_synced(spa_get_dsl(spa
), txg
);
5236 * Find out what block we got.
5238 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5239 DMU_READ_NO_PREFETCH
));
5240 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5241 dmu_buf_rele(db
, FTAG
);
5244 * Damage the block. Dedup-ditto will save us when we read it later.
5246 psize
= BP_GET_PSIZE(&blk
);
5247 buf
= zio_buf_alloc(psize
);
5248 ztest_pattern_set(buf
, psize
, ~pattern
);
5250 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5251 buf
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5252 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5254 zio_buf_free(buf
, psize
);
5256 (void) rw_unlock(&ztest_name_lock
);
5257 umem_free(od
, sizeof (ztest_od_t
));
5265 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5267 spa_t
*spa
= ztest_spa
;
5269 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5270 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5271 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5275 * Change the guid for the pool.
5279 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5281 spa_t
*spa
= ztest_spa
;
5282 uint64_t orig
, load
;
5285 orig
= spa_guid(spa
);
5286 load
= spa_load_guid(spa
);
5288 (void) rw_wrlock(&ztest_name_lock
);
5289 error
= spa_change_guid(spa
);
5290 (void) rw_unlock(&ztest_name_lock
);
5295 if (ztest_opts
.zo_verbose
>= 4) {
5296 (void) printf("Changed guid old %llu -> %llu\n",
5297 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5300 VERIFY3U(orig
, !=, spa_guid(spa
));
5301 VERIFY3U(load
, ==, spa_load_guid(spa
));
5305 * Rename the pool to a different name and then rename it back.
5309 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5311 char *oldname
, *newname
;
5314 (void) rw_wrlock(&ztest_name_lock
);
5316 oldname
= ztest_opts
.zo_pool
;
5317 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5318 (void) strcpy(newname
, oldname
);
5319 (void) strcat(newname
, "_tmp");
5324 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5327 * Try to open it under the old name, which shouldn't exist
5329 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5332 * Open it under the new name and make sure it's still the same spa_t.
5334 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5336 ASSERT(spa
== ztest_spa
);
5337 spa_close(spa
, FTAG
);
5340 * Rename it back to the original
5342 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5345 * Make sure it can still be opened
5347 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5349 ASSERT(spa
== ztest_spa
);
5350 spa_close(spa
, FTAG
);
5352 umem_free(newname
, strlen(newname
) + 1);
5354 (void) rw_unlock(&ztest_name_lock
);
5358 * Verify pool integrity by running zdb.
5361 ztest_run_zdb(char *pool
)
5369 bin
= umem_alloc(MAXPATHLEN
+ MAXNAMELEN
+ 20, UMEM_NOFAIL
);
5370 zdb
= umem_alloc(MAXPATHLEN
+ MAXNAMELEN
+ 20, UMEM_NOFAIL
);
5371 zbuf
= umem_alloc(1024, UMEM_NOFAIL
);
5373 VERIFY(realpath(getexecname(), bin
) != NULL
);
5374 if (strncmp(bin
, "/usr/sbin/ztest", 15) == 0) {
5375 strcpy(bin
, "/usr/sbin/zdb"); /* Installed */
5376 } else if (strncmp(bin
, "/sbin/ztest", 11) == 0) {
5377 strcpy(bin
, "/sbin/zdb"); /* Installed */
5379 strstr(bin
, "/ztest/")[0] = '\0'; /* In-tree */
5380 strcat(bin
, "/zdb/zdb");
5384 "%s -bcc%s%s -d -U %s %s",
5386 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5387 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5391 if (ztest_opts
.zo_verbose
>= 5)
5392 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5394 fp
= popen(zdb
, "r");
5396 while (fgets(zbuf
, 1024, fp
) != NULL
)
5397 if (ztest_opts
.zo_verbose
>= 3)
5398 (void) printf("%s", zbuf
);
5400 status
= pclose(fp
);
5405 ztest_dump_core
= 0;
5406 if (WIFEXITED(status
))
5407 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5409 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5411 umem_free(bin
, MAXPATHLEN
+ MAXNAMELEN
+ 20);
5412 umem_free(zdb
, MAXPATHLEN
+ MAXNAMELEN
+ 20);
5413 umem_free(zbuf
, 1024);
5417 ztest_walk_pool_directory(char *header
)
5421 if (ztest_opts
.zo_verbose
>= 6)
5422 (void) printf("%s\n", header
);
5424 mutex_enter(&spa_namespace_lock
);
5425 while ((spa
= spa_next(spa
)) != NULL
)
5426 if (ztest_opts
.zo_verbose
>= 6)
5427 (void) printf("\t%s\n", spa_name(spa
));
5428 mutex_exit(&spa_namespace_lock
);
5432 ztest_spa_import_export(char *oldname
, char *newname
)
5434 nvlist_t
*config
, *newconfig
;
5439 if (ztest_opts
.zo_verbose
>= 4) {
5440 (void) printf("import/export: old = %s, new = %s\n",
5445 * Clean up from previous runs.
5447 (void) spa_destroy(newname
);
5450 * Get the pool's configuration and guid.
5452 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5455 * Kick off a scrub to tickle scrub/export races.
5457 if (ztest_random(2) == 0)
5458 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5460 pool_guid
= spa_guid(spa
);
5461 spa_close(spa
, FTAG
);
5463 ztest_walk_pool_directory("pools before export");
5468 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
5470 ztest_walk_pool_directory("pools after export");
5475 newconfig
= spa_tryimport(config
);
5476 ASSERT(newconfig
!= NULL
);
5477 nvlist_free(newconfig
);
5480 * Import it under the new name.
5482 error
= spa_import(newname
, config
, NULL
, 0);
5484 dump_nvlist(config
, 0);
5485 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
5486 oldname
, newname
, error
);
5489 ztest_walk_pool_directory("pools after import");
5492 * Try to import it again -- should fail with EEXIST.
5494 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
5497 * Try to import it under a different name -- should fail with EEXIST.
5499 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
5502 * Verify that the pool is no longer visible under the old name.
5504 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5507 * Verify that we can open and close the pool using the new name.
5509 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5510 ASSERT(pool_guid
== spa_guid(spa
));
5511 spa_close(spa
, FTAG
);
5513 nvlist_free(config
);
5517 ztest_resume(spa_t
*spa
)
5519 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
5520 (void) printf("resuming from suspended state\n");
5521 spa_vdev_state_enter(spa
, SCL_NONE
);
5522 vdev_clear(spa
, NULL
);
5523 (void) spa_vdev_state_exit(spa
, NULL
, 0);
5524 (void) zio_resume(spa
);
5528 ztest_resume_thread(void *arg
)
5532 while (!ztest_exiting
) {
5533 if (spa_suspended(spa
))
5535 (void) poll(NULL
, 0, 100);
5547 ztest_deadman_alarm(int sig
)
5549 fatal(0, "failed to complete within %d seconds of deadline", GRACE
);
5554 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
5556 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
5557 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
5558 hrtime_t functime
= gethrtime();
5561 for (i
= 0; i
< zi
->zi_iters
; i
++)
5562 zi
->zi_func(zd
, id
);
5564 functime
= gethrtime() - functime
;
5566 atomic_add_64(&zc
->zc_count
, 1);
5567 atomic_add_64(&zc
->zc_time
, functime
);
5569 if (ztest_opts
.zo_verbose
>= 4) {
5571 (void) dladdr((void *)zi
->zi_func
, &dli
);
5572 (void) printf("%6.2f sec in %s\n",
5573 (double)functime
/ NANOSEC
, dli
.dli_sname
);
5578 ztest_thread(void *arg
)
5581 uint64_t id
= (uintptr_t)arg
;
5582 ztest_shared_t
*zs
= ztest_shared
;
5586 ztest_shared_callstate_t
*zc
;
5588 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
5590 * See if it's time to force a crash.
5592 if (now
> zs
->zs_thread_kill
)
5596 * If we're getting ENOSPC with some regularity, stop.
5598 if (zs
->zs_enospc_count
> 10)
5602 * Pick a random function to execute.
5604 rand
= ztest_random(ZTEST_FUNCS
);
5605 zi
= &ztest_info
[rand
];
5606 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
5607 call_next
= zc
->zc_next
;
5609 if (now
>= call_next
&&
5610 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
5611 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
5612 ztest_execute(rand
, zi
, id
);
5622 ztest_dataset_name(char *dsname
, char *pool
, int d
)
5624 (void) snprintf(dsname
, MAXNAMELEN
, "%s/ds_%d", pool
, d
);
5628 ztest_dataset_destroy(int d
)
5630 char name
[MAXNAMELEN
];
5633 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5635 if (ztest_opts
.zo_verbose
>= 3)
5636 (void) printf("Destroying %s to free up space\n", name
);
5639 * Cleanup any non-standard clones and snapshots. In general,
5640 * ztest thread t operates on dataset (t % zopt_datasets),
5641 * so there may be more than one thing to clean up.
5643 for (t
= d
; t
< ztest_opts
.zo_threads
;
5644 t
+= ztest_opts
.zo_datasets
)
5645 ztest_dsl_dataset_cleanup(name
, t
);
5647 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
5648 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
5652 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
5654 uint64_t usedobjs
, dirobjs
, scratch
;
5657 * ZTEST_DIROBJ is the object directory for the entire dataset.
5658 * Therefore, the number of objects in use should equal the
5659 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
5660 * If not, we have an object leak.
5662 * Note that we can only check this in ztest_dataset_open(),
5663 * when the open-context and syncing-context values agree.
5664 * That's because zap_count() returns the open-context value,
5665 * while dmu_objset_space() returns the rootbp fill count.
5667 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
5668 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
5669 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
5673 ztest_dataset_open(int d
)
5675 ztest_ds_t
*zd
= &ztest_ds
[d
];
5676 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
5679 char name
[MAXNAMELEN
];
5682 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
5684 (void) rw_rdlock(&ztest_name_lock
);
5686 error
= ztest_dataset_create(name
);
5687 if (error
== ENOSPC
) {
5688 (void) rw_unlock(&ztest_name_lock
);
5689 ztest_record_enospc(FTAG
);
5692 ASSERT(error
== 0 || error
== EEXIST
);
5694 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, zd
, &os
));
5695 (void) rw_unlock(&ztest_name_lock
);
5697 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
5699 zilog
= zd
->zd_zilog
;
5701 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
5702 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
5703 fatal(0, "missing log records: claimed %llu < committed %llu",
5704 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
5706 ztest_dataset_dirobj_verify(zd
);
5708 zil_replay(os
, zd
, ztest_replay_vector
);
5710 ztest_dataset_dirobj_verify(zd
);
5712 if (ztest_opts
.zo_verbose
>= 6)
5713 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
5715 (u_longlong_t
)zilog
->zl_parse_blk_count
,
5716 (u_longlong_t
)zilog
->zl_parse_lr_count
,
5717 (u_longlong_t
)zilog
->zl_replaying_seq
);
5719 zilog
= zil_open(os
, ztest_get_data
);
5721 if (zilog
->zl_replaying_seq
!= 0 &&
5722 zilog
->zl_replaying_seq
< committed_seq
)
5723 fatal(0, "missing log records: replayed %llu < committed %llu",
5724 zilog
->zl_replaying_seq
, committed_seq
);
5730 ztest_dataset_close(int d
)
5732 ztest_ds_t
*zd
= &ztest_ds
[d
];
5734 zil_close(zd
->zd_zilog
);
5735 dmu_objset_disown(zd
->zd_os
, zd
);
5741 * Kick off threads to run tests on all datasets in parallel.
5744 ztest_run(ztest_shared_t
*zs
)
5749 kthread_t
*resume_thread
;
5754 ztest_exiting
= B_FALSE
;
5757 * Initialize parent/child shared state.
5759 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5760 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
5762 zs
->zs_thread_start
= gethrtime();
5763 zs
->zs_thread_stop
=
5764 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
5765 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
5766 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
5767 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
5768 zs
->zs_thread_kill
-=
5769 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
5772 mutex_init(&zcl
.zcl_callbacks_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
5774 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
5775 offsetof(ztest_cb_data_t
, zcd_node
));
5780 kernel_init(FREAD
| FWRITE
);
5781 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5782 spa
->spa_debug
= B_TRUE
;
5783 metaslab_preload_limit
= ztest_random(20) + 1;
5786 VERIFY0(dmu_objset_own(ztest_opts
.zo_pool
,
5787 DMU_OST_ANY
, B_TRUE
, FTAG
, &os
));
5788 zs
->zs_guid
= dmu_objset_fsid_guid(os
);
5789 dmu_objset_disown(os
, FTAG
);
5791 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
5794 * We don't expect the pool to suspend unless maxfaults == 0,
5795 * in which case ztest_fault_inject() temporarily takes away
5796 * the only valid replica.
5798 if (MAXFAULTS() == 0)
5799 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
5801 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
5804 * Create a thread to periodically resume suspended I/O.
5806 VERIFY3P((resume_thread
= zk_thread_create(NULL
, 0,
5807 (thread_func_t
)ztest_resume_thread
, spa
, TS_RUN
, NULL
, 0, 0,
5808 PTHREAD_CREATE_JOINABLE
)), !=, NULL
);
5812 * Set a deadman alarm to abort() if we hang.
5814 signal(SIGALRM
, ztest_deadman_alarm
);
5815 alarm((zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ GRACE
);
5819 * Verify that we can safely inquire about about any object,
5820 * whether it's allocated or not. To make it interesting,
5821 * we probe a 5-wide window around each power of two.
5822 * This hits all edge cases, including zero and the max.
5824 for (t
= 0; t
< 64; t
++) {
5825 for (d
= -5; d
<= 5; d
++) {
5826 error
= dmu_object_info(spa
->spa_meta_objset
,
5827 (1ULL << t
) + d
, NULL
);
5828 ASSERT(error
== 0 || error
== ENOENT
||
5834 * If we got any ENOSPC errors on the previous run, destroy something.
5836 if (zs
->zs_enospc_count
!= 0) {
5837 int d
= ztest_random(ztest_opts
.zo_datasets
);
5838 ztest_dataset_destroy(d
);
5840 zs
->zs_enospc_count
= 0;
5842 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (kt_did_t
),
5845 if (ztest_opts
.zo_verbose
>= 4)
5846 (void) printf("starting main threads...\n");
5849 * Kick off all the tests that run in parallel.
5851 for (t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
5854 if (t
< ztest_opts
.zo_datasets
&&
5855 ztest_dataset_open(t
) != 0)
5858 VERIFY3P(thread
= zk_thread_create(NULL
, 0,
5859 (thread_func_t
)ztest_thread
,
5860 (void *)(uintptr_t)t
, TS_RUN
, NULL
, 0, 0,
5861 PTHREAD_CREATE_JOINABLE
), !=, NULL
);
5862 tid
[t
] = thread
->t_tid
;
5866 * Wait for all of the tests to complete. We go in reverse order
5867 * so we don't close datasets while threads are still using them.
5869 for (t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
5870 thread_join(tid
[t
]);
5871 if (t
< ztest_opts
.zo_datasets
)
5872 ztest_dataset_close(t
);
5875 txg_wait_synced(spa_get_dsl(spa
), 0);
5877 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
5878 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
5880 if (ztest_opts
.zo_verbose
>= 3)
5881 zfs_dbgmsg_print(FTAG
);
5883 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (kt_did_t
));
5885 /* Kill the resume thread */
5886 ztest_exiting
= B_TRUE
;
5887 thread_join(resume_thread
->t_tid
);
5891 * Right before closing the pool, kick off a bunch of async I/O;
5892 * spa_close() should wait for it to complete.
5894 for (object
= 1; object
< 50; object
++)
5895 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 1ULL << 20);
5897 /* Verify that at least one commit cb was called in a timely fashion */
5898 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
5899 VERIFY0(zc_min_txg_delay
);
5901 spa_close(spa
, FTAG
);
5904 * Verify that we can loop over all pools.
5906 mutex_enter(&spa_namespace_lock
);
5907 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
5908 if (ztest_opts
.zo_verbose
> 3)
5909 (void) printf("spa_next: found %s\n", spa_name(spa
));
5910 mutex_exit(&spa_namespace_lock
);
5913 * Verify that we can export the pool and reimport it under a
5916 if (ztest_random(2) == 0) {
5917 char name
[MAXNAMELEN
];
5918 (void) snprintf(name
, MAXNAMELEN
, "%s_import",
5919 ztest_opts
.zo_pool
);
5920 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
5921 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
5926 list_destroy(&zcl
.zcl_callbacks
);
5927 mutex_destroy(&zcl
.zcl_callbacks_lock
);
5928 (void) rwlock_destroy(&ztest_name_lock
);
5929 mutex_destroy(&ztest_vdev_lock
);
5935 ztest_ds_t
*zd
= &ztest_ds
[0];
5939 if (ztest_opts
.zo_verbose
>= 3)
5940 (void) printf("testing spa_freeze()...\n");
5942 kernel_init(FREAD
| FWRITE
);
5943 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5944 VERIFY3U(0, ==, ztest_dataset_open(0));
5945 spa
->spa_debug
= B_TRUE
;
5949 * Force the first log block to be transactionally allocated.
5950 * We have to do this before we freeze the pool -- otherwise
5951 * the log chain won't be anchored.
5953 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
5954 ztest_dmu_object_alloc_free(zd
, 0);
5955 zil_commit(zd
->zd_zilog
, 0);
5958 txg_wait_synced(spa_get_dsl(spa
), 0);
5961 * Freeze the pool. This stops spa_sync() from doing anything,
5962 * so that the only way to record changes from now on is the ZIL.
5967 * Run tests that generate log records but don't alter the pool config
5968 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
5969 * We do a txg_wait_synced() after each iteration to force the txg
5970 * to increase well beyond the last synced value in the uberblock.
5971 * The ZIL should be OK with that.
5973 while (ztest_random(10) != 0 &&
5974 numloops
++ < ztest_opts
.zo_maxloops
) {
5975 ztest_dmu_write_parallel(zd
, 0);
5976 ztest_dmu_object_alloc_free(zd
, 0);
5977 txg_wait_synced(spa_get_dsl(spa
), 0);
5981 * Commit all of the changes we just generated.
5983 zil_commit(zd
->zd_zilog
, 0);
5984 txg_wait_synced(spa_get_dsl(spa
), 0);
5987 * Close our dataset and close the pool.
5989 ztest_dataset_close(0);
5990 spa_close(spa
, FTAG
);
5994 * Open and close the pool and dataset to induce log replay.
5996 kernel_init(FREAD
| FWRITE
);
5997 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
5998 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
5999 VERIFY3U(0, ==, ztest_dataset_open(0));
6000 ztest_dataset_close(0);
6002 spa
->spa_debug
= B_TRUE
;
6004 txg_wait_synced(spa_get_dsl(spa
), 0);
6005 ztest_reguid(NULL
, 0);
6007 spa_close(spa
, FTAG
);
6012 print_time(hrtime_t t
, char *timebuf
)
6014 hrtime_t s
= t
/ NANOSEC
;
6015 hrtime_t m
= s
/ 60;
6016 hrtime_t h
= m
/ 60;
6017 hrtime_t d
= h
/ 24;
6026 (void) sprintf(timebuf
,
6027 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
6029 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
6031 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
6033 (void) sprintf(timebuf
, "%llus", s
);
6037 make_random_props(void)
6041 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
6042 if (ztest_random(2) == 0)
6044 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
6050 * Create a storage pool with the given name and initial vdev size.
6051 * Then test spa_freeze() functionality.
6054 ztest_init(ztest_shared_t
*zs
)
6057 nvlist_t
*nvroot
, *props
;
6060 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6061 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6063 kernel_init(FREAD
| FWRITE
);
6066 * Create the storage pool.
6068 (void) spa_destroy(ztest_opts
.zo_pool
);
6069 ztest_shared
->zs_vdev_next_leaf
= 0;
6071 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
6072 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
6073 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
6074 props
= make_random_props();
6075 for (i
= 0; i
< SPA_FEATURES
; i
++) {
6077 VERIFY3S(-1, !=, asprintf(&buf
, "feature@%s",
6078 spa_feature_table
[i
].fi_uname
));
6079 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
6082 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
));
6083 nvlist_free(nvroot
);
6086 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6087 zs
->zs_metaslab_sz
=
6088 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6089 spa_close(spa
, FTAG
);
6093 ztest_run_zdb(ztest_opts
.zo_pool
);
6097 ztest_run_zdb(ztest_opts
.zo_pool
);
6099 (void) rwlock_destroy(&ztest_name_lock
);
6100 mutex_destroy(&ztest_vdev_lock
);
6106 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
6108 ztest_fd_data
= mkstemp(ztest_name_data
);
6109 ASSERT3S(ztest_fd_data
, >=, 0);
6110 (void) unlink(ztest_name_data
);
6114 shared_data_size(ztest_shared_hdr_t
*hdr
)
6118 size
= hdr
->zh_hdr_size
;
6119 size
+= hdr
->zh_opts_size
;
6120 size
+= hdr
->zh_size
;
6121 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6122 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
6131 ztest_shared_hdr_t
*hdr
;
6133 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6134 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6135 VERIFY3P(hdr
, !=, MAP_FAILED
);
6137 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
6139 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
6140 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
6141 hdr
->zh_size
= sizeof (ztest_shared_t
);
6142 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
6143 hdr
->zh_stats_count
= ZTEST_FUNCS
;
6144 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
6145 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
6147 size
= shared_data_size(hdr
);
6148 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
6150 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6157 ztest_shared_hdr_t
*hdr
;
6160 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6161 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
6162 VERIFY3P(hdr
, !=, MAP_FAILED
);
6164 size
= shared_data_size(hdr
);
6166 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6167 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
6168 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6169 VERIFY3P(hdr
, !=, MAP_FAILED
);
6170 buf
= (uint8_t *)hdr
;
6172 offset
= hdr
->zh_hdr_size
;
6173 ztest_shared_opts
= (void *)&buf
[offset
];
6174 offset
+= hdr
->zh_opts_size
;
6175 ztest_shared
= (void *)&buf
[offset
];
6176 offset
+= hdr
->zh_size
;
6177 ztest_shared_callstate
= (void *)&buf
[offset
];
6178 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6179 ztest_shared_ds
= (void *)&buf
[offset
];
6183 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
6187 char *cmdbuf
= NULL
;
6192 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
6193 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
6198 fatal(1, "fork failed");
6200 if (pid
== 0) { /* child */
6201 char *emptyargv
[2] = { cmd
, NULL
};
6202 char fd_data_str
[12];
6204 struct rlimit rl
= { 1024, 1024 };
6205 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
6207 (void) close(ztest_fd_rand
);
6208 VERIFY(11 >= snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
6209 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str
, 1));
6211 (void) enable_extended_FILE_stdio(-1, -1);
6212 if (libpath
!= NULL
)
6213 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
6214 (void) execv(cmd
, emptyargv
);
6215 ztest_dump_core
= B_FALSE
;
6216 fatal(B_TRUE
, "exec failed: %s", cmd
);
6219 if (cmdbuf
!= NULL
) {
6220 umem_free(cmdbuf
, MAXPATHLEN
);
6224 while (waitpid(pid
, &status
, 0) != pid
)
6226 if (statusp
!= NULL
)
6229 if (WIFEXITED(status
)) {
6230 if (WEXITSTATUS(status
) != 0) {
6231 (void) fprintf(stderr
, "child exited with code %d\n",
6232 WEXITSTATUS(status
));
6236 } else if (WIFSIGNALED(status
)) {
6237 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6238 (void) fprintf(stderr
, "child died with signal %d\n",
6244 (void) fprintf(stderr
, "something strange happened to child\n");
6251 ztest_run_init(void)
6255 ztest_shared_t
*zs
= ztest_shared
;
6257 ASSERT(ztest_opts
.zo_init
!= 0);
6260 * Blow away any existing copy of zpool.cache
6262 (void) remove(spa_config_path
);
6265 * Create and initialize our storage pool.
6267 for (i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6268 bzero(zs
, sizeof (ztest_shared_t
));
6269 if (ztest_opts
.zo_verbose
>= 3 &&
6270 ztest_opts
.zo_init
!= 1) {
6271 (void) printf("ztest_init(), pass %d\n", i
);
6278 main(int argc
, char **argv
)
6286 ztest_shared_callstate_t
*zc
;
6293 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6294 struct sigaction action
;
6296 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6298 dprintf_setup(&argc
, argv
);
6300 action
.sa_handler
= sig_handler
;
6301 sigemptyset(&action
.sa_mask
);
6302 action
.sa_flags
= 0;
6304 if (sigaction(SIGSEGV
, &action
, NULL
) < 0) {
6305 (void) fprintf(stderr
, "ztest: cannot catch SIGSEGV: %s.\n",
6310 if (sigaction(SIGABRT
, &action
, NULL
) < 0) {
6311 (void) fprintf(stderr
, "ztest: cannot catch SIGABRT: %s.\n",
6316 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6317 ASSERT3S(ztest_fd_rand
, >=, 0);
6320 process_options(argc
, argv
);
6325 bcopy(&ztest_opts
, ztest_shared_opts
,
6326 sizeof (*ztest_shared_opts
));
6328 ztest_fd_data
= atoi(fd_data_str
);
6330 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6332 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6334 /* Override location of zpool.cache */
6335 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6336 ztest_opts
.zo_dir
) != -1);
6338 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6343 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6344 metaslab_df_alloc_threshold
=
6345 zs
->zs_metaslab_df_alloc_threshold
;
6354 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6356 if (ztest_opts
.zo_verbose
>= 1) {
6357 (void) printf("%llu vdevs, %d datasets, %d threads,"
6358 " %llu seconds...\n",
6359 (u_longlong_t
)ztest_opts
.zo_vdevs
,
6360 ztest_opts
.zo_datasets
,
6361 ztest_opts
.zo_threads
,
6362 (u_longlong_t
)ztest_opts
.zo_time
);
6365 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
6366 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
6368 zs
->zs_do_init
= B_TRUE
;
6369 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
6370 if (ztest_opts
.zo_verbose
>= 1) {
6371 (void) printf("Executing older ztest for "
6372 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
6374 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
6375 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
6377 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
6379 zs
->zs_do_init
= B_FALSE
;
6381 zs
->zs_proc_start
= gethrtime();
6382 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
6384 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6385 zi
= &ztest_info
[f
];
6386 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6387 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
6388 zc
->zc_next
= UINT64_MAX
;
6390 zc
->zc_next
= zs
->zs_proc_start
+
6391 ztest_random(2 * zi
->zi_interval
[0] + 1);
6395 * Run the tests in a loop. These tests include fault injection
6396 * to verify that self-healing data works, and forced crashes
6397 * to verify that we never lose on-disk consistency.
6399 while (gethrtime() < zs
->zs_proc_stop
) {
6404 * Initialize the workload counters for each function.
6406 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6407 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6412 /* Set the allocation switch size */
6413 zs
->zs_metaslab_df_alloc_threshold
=
6414 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
6416 if (!hasalt
|| ztest_random(2) == 0) {
6417 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6418 (void) printf("Executing newer ztest: %s\n",
6422 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
6424 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
6425 (void) printf("Executing older ztest: %s\n",
6426 ztest_opts
.zo_alt_ztest
);
6429 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
6430 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
6437 if (ztest_opts
.zo_verbose
>= 1) {
6438 hrtime_t now
= gethrtime();
6440 now
= MIN(now
, zs
->zs_proc_stop
);
6441 print_time(zs
->zs_proc_stop
- now
, timebuf
);
6442 nicenum(zs
->zs_space
, numbuf
);
6444 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
6445 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
6447 WIFEXITED(status
) ? "Complete" : "SIGKILL",
6448 (u_longlong_t
)zs
->zs_enospc_count
,
6449 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
6451 100.0 * (now
- zs
->zs_proc_start
) /
6452 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
6455 if (ztest_opts
.zo_verbose
>= 2) {
6456 (void) printf("\nWorkload summary:\n\n");
6457 (void) printf("%7s %9s %s\n",
6458 "Calls", "Time", "Function");
6459 (void) printf("%7s %9s %s\n",
6460 "-----", "----", "--------");
6461 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
6464 zi
= &ztest_info
[f
];
6465 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
6466 print_time(zc
->zc_time
, timebuf
);
6467 (void) dladdr((void *)zi
->zi_func
, &dli
);
6468 (void) printf("%7llu %9s %s\n",
6469 (u_longlong_t
)zc
->zc_count
, timebuf
,
6472 (void) printf("\n");
6476 * It's possible that we killed a child during a rename test,
6477 * in which case we'll have a 'ztest_tmp' pool lying around
6478 * instead of 'ztest'. Do a blind rename in case this happened.
6481 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
6482 spa_close(spa
, FTAG
);
6484 char tmpname
[MAXNAMELEN
];
6486 kernel_init(FREAD
| FWRITE
);
6487 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
6488 ztest_opts
.zo_pool
);
6489 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
6493 ztest_run_zdb(ztest_opts
.zo_pool
);
6496 if (ztest_opts
.zo_verbose
>= 1) {
6498 (void) printf("%d runs of older ztest: %s\n", older
,
6499 ztest_opts
.zo_alt_ztest
);
6500 (void) printf("%d runs of newer ztest: %s\n", newer
,
6503 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
6504 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
6507 umem_free(cmd
, MAXNAMELEN
);