4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
24 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
25 * Copyright (c) 2013 Steven Hartland. All rights reserved.
29 * The objective of this program is to provide a DMU/ZAP/SPA stress test
30 * that runs entirely in userland, is easy to use, and easy to extend.
32 * The overall design of the ztest program is as follows:
34 * (1) For each major functional area (e.g. adding vdevs to a pool,
35 * creating and destroying datasets, reading and writing objects, etc)
36 * we have a simple routine to test that functionality. These
37 * individual routines do not have to do anything "stressful".
39 * (2) We turn these simple functionality tests into a stress test by
40 * running them all in parallel, with as many threads as desired,
41 * and spread across as many datasets, objects, and vdevs as desired.
43 * (3) While all this is happening, we inject faults into the pool to
44 * verify that self-healing data really works.
46 * (4) Every time we open a dataset, we change its checksum and compression
47 * functions. Thus even individual objects vary from block to block
48 * in which checksum they use and whether they're compressed.
50 * (5) To verify that we never lose on-disk consistency after a crash,
51 * we run the entire test in a child of the main process.
52 * At random times, the child self-immolates with a SIGKILL.
53 * This is the software equivalent of pulling the power cord.
54 * The parent then runs the test again, using the existing
55 * storage pool, as many times as desired. If backwards compatibility
56 * testing is enabled ztest will sometimes run the "older" version
57 * of ztest after a SIGKILL.
59 * (6) To verify that we don't have future leaks or temporal incursions,
60 * many of the functional tests record the transaction group number
61 * as part of their data. When reading old data, they verify that
62 * the transaction group number is less than the current, open txg.
63 * If you add a new test, please do this if applicable.
65 * (7) Threads are created with a reduced stack size, for sanity checking.
66 * Therefore, it's important not to allocate huge buffers on the stack.
68 * When run with no arguments, ztest runs for about five minutes and
69 * produces no output if successful. To get a little bit of information,
70 * specify -V. To get more information, specify -VV, and so on.
72 * To turn this into an overnight stress test, use -T to specify run time.
74 * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
75 * to increase the pool capacity, fanout, and overall stress level.
77 * Use the -k option to set the desired frequency of kills.
79 * When ztest invokes itself it passes all relevant information through a
80 * temporary file which is mmap-ed in the child process. This allows shared
81 * memory to survive the exec syscall. The ztest_shared_hdr_t struct is always
82 * stored at offset 0 of this file and contains information on the size and
83 * number of shared structures in the file. The information stored in this file
84 * must remain backwards compatible with older versions of ztest so that
85 * ztest can invoke them during backwards compatibility testing (-B).
88 #include <sys/zfs_context.h>
94 #include <sys/dmu_objset.h>
100 #include <sys/resource.h>
103 #include <sys/zil_impl.h>
104 #include <sys/zfs_rlock.h>
105 #include <sys/vdev_impl.h>
106 #include <sys/vdev_file.h>
107 #include <sys/spa_impl.h>
108 #include <sys/metaslab_impl.h>
109 #include <sys/dsl_prop.h>
110 #include <sys/dsl_dataset.h>
111 #include <sys/dsl_destroy.h>
112 #include <sys/dsl_scan.h>
113 #include <sys/zio_checksum.h>
114 #include <sys/refcount.h>
115 #include <sys/zfeature.h>
116 #include <sys/dsl_userhold.h>
119 #include <stdio_ext.h>
126 #include <sys/fs/zfs.h>
127 #include <zfs_fletcher.h>
128 #include <libnvpair.h>
131 #include <execinfo.h> /* for backtrace() */
134 static int ztest_fd_data
= -1;
135 static int ztest_fd_rand
= -1;
137 typedef struct ztest_shared_hdr
{
138 uint64_t zh_hdr_size
;
139 uint64_t zh_opts_size
;
141 uint64_t zh_stats_size
;
142 uint64_t zh_stats_count
;
144 uint64_t zh_ds_count
;
145 } ztest_shared_hdr_t
;
147 static ztest_shared_hdr_t
*ztest_shared_hdr
;
149 typedef struct ztest_shared_opts
{
150 char zo_pool
[ZFS_MAX_DATASET_NAME_LEN
];
151 char zo_dir
[ZFS_MAX_DATASET_NAME_LEN
];
152 char zo_alt_ztest
[MAXNAMELEN
];
153 char zo_alt_libpath
[MAXNAMELEN
];
155 uint64_t zo_vdevtime
;
163 uint64_t zo_passtime
;
164 uint64_t zo_killrate
;
168 uint64_t zo_maxloops
;
169 uint64_t zo_metaslab_gang_bang
;
171 } ztest_shared_opts_t
;
173 static const ztest_shared_opts_t ztest_opts_defaults
= {
174 .zo_pool
= { 'z', 't', 'e', 's', 't', '\0' },
175 .zo_dir
= { '/', 't', 'm', 'p', '\0' },
176 .zo_alt_ztest
= { '\0' },
177 .zo_alt_libpath
= { '\0' },
179 .zo_ashift
= SPA_MINBLOCKSHIFT
,
182 .zo_raidz_parity
= 1,
183 .zo_vdev_size
= SPA_MINDEVSIZE
* 4, /* 256m default size */
186 .zo_passtime
= 60, /* 60 seconds */
187 .zo_killrate
= 70, /* 70% kill rate */
191 .zo_time
= 300, /* 5 minutes */
192 .zo_maxloops
= 50, /* max loops during spa_freeze() */
193 .zo_metaslab_gang_bang
= 32 << 10
196 extern uint64_t metaslab_gang_bang
;
197 extern uint64_t metaslab_df_alloc_threshold
;
198 extern int metaslab_preload_limit
;
199 extern boolean_t zfs_compressed_arc_enabled
;
200 extern int zfs_abd_scatter_enabled
;
202 static ztest_shared_opts_t
*ztest_shared_opts
;
203 static ztest_shared_opts_t ztest_opts
;
205 typedef struct ztest_shared_ds
{
209 static ztest_shared_ds_t
*ztest_shared_ds
;
210 #define ZTEST_GET_SHARED_DS(d) (&ztest_shared_ds[d])
212 #define BT_MAGIC 0x123456789abcdefULL
213 #define MAXFAULTS() \
214 (MAX(zs->zs_mirrors, 1) * (ztest_opts.zo_raidz_parity + 1) - 1)
218 ZTEST_IO_WRITE_PATTERN
,
219 ZTEST_IO_WRITE_ZEROES
,
226 typedef struct ztest_block_tag
{
230 uint64_t bt_dnodesize
;
237 typedef struct bufwad
{
255 #define ZTEST_RANGE_LOCKS 64
256 #define ZTEST_OBJECT_LOCKS 64
259 * Object descriptor. Used as a template for object lookup/create/remove.
261 typedef struct ztest_od
{
264 dmu_object_type_t od_type
;
265 dmu_object_type_t od_crtype
;
266 uint64_t od_blocksize
;
267 uint64_t od_crblocksize
;
268 uint64_t od_crdnodesize
;
271 char od_name
[ZFS_MAX_DATASET_NAME_LEN
];
277 typedef struct ztest_ds
{
278 ztest_shared_ds_t
*zd_shared
;
280 rwlock_t zd_zilog_lock
;
282 ztest_od_t
*zd_od
; /* debugging aid */
283 char zd_name
[ZFS_MAX_DATASET_NAME_LEN
];
284 kmutex_t zd_dirobj_lock
;
285 rll_t zd_object_lock
[ZTEST_OBJECT_LOCKS
];
286 zll_t zd_range_lock
[ZTEST_RANGE_LOCKS
];
290 * Per-iteration state.
292 typedef void ztest_func_t(ztest_ds_t
*zd
, uint64_t id
);
294 typedef struct ztest_info
{
295 ztest_func_t
*zi_func
; /* test function */
296 uint64_t zi_iters
; /* iterations per execution */
297 uint64_t *zi_interval
; /* execute every <interval> seconds */
298 const char *zi_funcname
; /* name of test function */
301 typedef struct ztest_shared_callstate
{
302 uint64_t zc_count
; /* per-pass count */
303 uint64_t zc_time
; /* per-pass time */
304 uint64_t zc_next
; /* next time to call this function */
305 } ztest_shared_callstate_t
;
307 static ztest_shared_callstate_t
*ztest_shared_callstate
;
308 #define ZTEST_GET_SHARED_CALLSTATE(c) (&ztest_shared_callstate[c])
310 ztest_func_t ztest_dmu_read_write
;
311 ztest_func_t ztest_dmu_write_parallel
;
312 ztest_func_t ztest_dmu_object_alloc_free
;
313 ztest_func_t ztest_dmu_commit_callbacks
;
314 ztest_func_t ztest_zap
;
315 ztest_func_t ztest_zap_parallel
;
316 ztest_func_t ztest_zil_commit
;
317 ztest_func_t ztest_zil_remount
;
318 ztest_func_t ztest_dmu_read_write_zcopy
;
319 ztest_func_t ztest_dmu_objset_create_destroy
;
320 ztest_func_t ztest_dmu_prealloc
;
321 ztest_func_t ztest_fzap
;
322 ztest_func_t ztest_dmu_snapshot_create_destroy
;
323 ztest_func_t ztest_dsl_prop_get_set
;
324 ztest_func_t ztest_spa_prop_get_set
;
325 ztest_func_t ztest_spa_create_destroy
;
326 ztest_func_t ztest_fault_inject
;
327 ztest_func_t ztest_ddt_repair
;
328 ztest_func_t ztest_dmu_snapshot_hold
;
329 ztest_func_t ztest_mmp_enable_disable
;
330 ztest_func_t ztest_spa_rename
;
331 ztest_func_t ztest_scrub
;
332 ztest_func_t ztest_dsl_dataset_promote_busy
;
333 ztest_func_t ztest_vdev_attach_detach
;
334 ztest_func_t ztest_vdev_LUN_growth
;
335 ztest_func_t ztest_vdev_add_remove
;
336 ztest_func_t ztest_vdev_aux_add_remove
;
337 ztest_func_t ztest_split_pool
;
338 ztest_func_t ztest_reguid
;
339 ztest_func_t ztest_spa_upgrade
;
340 ztest_func_t ztest_fletcher
;
341 ztest_func_t ztest_fletcher_incr
;
342 ztest_func_t ztest_verify_dnode_bt
;
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 #define ZTI_INIT(func, iters, interval) \
351 { .zi_func = (func), \
352 .zi_iters = (iters), \
353 .zi_interval = (interval), \
354 .zi_funcname = # func }
356 ztest_info_t ztest_info
[] = {
357 ZTI_INIT(ztest_dmu_read_write
, 1, &zopt_always
),
358 ZTI_INIT(ztest_dmu_write_parallel
, 10, &zopt_always
),
359 ZTI_INIT(ztest_dmu_object_alloc_free
, 1, &zopt_always
),
360 ZTI_INIT(ztest_dmu_commit_callbacks
, 1, &zopt_always
),
361 ZTI_INIT(ztest_zap
, 30, &zopt_always
),
362 ZTI_INIT(ztest_zap_parallel
, 100, &zopt_always
),
363 ZTI_INIT(ztest_split_pool
, 1, &zopt_always
),
364 ZTI_INIT(ztest_zil_commit
, 1, &zopt_incessant
),
365 ZTI_INIT(ztest_zil_remount
, 1, &zopt_sometimes
),
366 ZTI_INIT(ztest_dmu_read_write_zcopy
, 1, &zopt_often
),
367 ZTI_INIT(ztest_dmu_objset_create_destroy
, 1, &zopt_often
),
368 ZTI_INIT(ztest_dsl_prop_get_set
, 1, &zopt_often
),
369 ZTI_INIT(ztest_spa_prop_get_set
, 1, &zopt_sometimes
),
371 ZTI_INIT(ztest_dmu_prealloc
, 1, &zopt_sometimes
),
373 ZTI_INIT(ztest_fzap
, 1, &zopt_sometimes
),
374 ZTI_INIT(ztest_dmu_snapshot_create_destroy
, 1, &zopt_sometimes
),
375 ZTI_INIT(ztest_spa_create_destroy
, 1, &zopt_sometimes
),
376 ZTI_INIT(ztest_fault_inject
, 1, &zopt_sometimes
),
377 ZTI_INIT(ztest_ddt_repair
, 1, &zopt_sometimes
),
378 ZTI_INIT(ztest_dmu_snapshot_hold
, 1, &zopt_sometimes
),
379 ZTI_INIT(ztest_mmp_enable_disable
, 1, &zopt_sometimes
),
380 ZTI_INIT(ztest_reguid
, 1, &zopt_rarely
),
381 ZTI_INIT(ztest_spa_rename
, 1, &zopt_rarely
),
382 ZTI_INIT(ztest_scrub
, 1, &zopt_rarely
),
383 ZTI_INIT(ztest_spa_upgrade
, 1, &zopt_rarely
),
384 ZTI_INIT(ztest_dsl_dataset_promote_busy
, 1, &zopt_rarely
),
385 ZTI_INIT(ztest_vdev_attach_detach
, 1, &zopt_sometimes
),
386 ZTI_INIT(ztest_vdev_LUN_growth
, 1, &zopt_rarely
),
387 ZTI_INIT(ztest_vdev_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
388 ZTI_INIT(ztest_vdev_aux_add_remove
, 1, &ztest_opts
.zo_vdevtime
),
389 ZTI_INIT(ztest_fletcher
, 1, &zopt_rarely
),
390 ZTI_INIT(ztest_fletcher_incr
, 1, &zopt_rarely
),
391 ZTI_INIT(ztest_verify_dnode_bt
, 1, &zopt_sometimes
),
394 #define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
397 * The following struct is used to hold a list of uncalled commit callbacks.
398 * The callbacks are ordered by txg number.
400 typedef struct ztest_cb_list
{
401 kmutex_t zcl_callbacks_lock
;
402 list_t zcl_callbacks
;
406 * Stuff we need to share writably between parent and child.
408 typedef struct ztest_shared
{
409 boolean_t zs_do_init
;
410 hrtime_t zs_proc_start
;
411 hrtime_t zs_proc_stop
;
412 hrtime_t zs_thread_start
;
413 hrtime_t zs_thread_stop
;
414 hrtime_t zs_thread_kill
;
415 uint64_t zs_enospc_count
;
416 uint64_t zs_vdev_next_leaf
;
417 uint64_t zs_vdev_aux
;
422 uint64_t zs_metaslab_sz
;
423 uint64_t zs_metaslab_df_alloc_threshold
;
427 #define ID_PARALLEL -1ULL
429 static char ztest_dev_template
[] = "%s/%s.%llua";
430 static char ztest_aux_template
[] = "%s/%s.%s.%llu";
431 ztest_shared_t
*ztest_shared
;
433 static spa_t
*ztest_spa
= NULL
;
434 static ztest_ds_t
*ztest_ds
;
436 static kmutex_t ztest_vdev_lock
;
439 * The ztest_name_lock protects the pool and dataset namespace used by
440 * the individual tests. To modify the namespace, consumers must grab
441 * this lock as writer. Grabbing the lock as reader will ensure that the
442 * namespace does not change while the lock is held.
444 static rwlock_t ztest_name_lock
;
446 static boolean_t ztest_dump_core
= B_TRUE
;
447 static boolean_t ztest_exiting
;
449 /* Global commit callback list */
450 static ztest_cb_list_t zcl
;
451 /* Commit cb delay */
452 static uint64_t zc_min_txg_delay
= UINT64_MAX
;
453 static int zc_cb_counter
= 0;
456 * Minimum number of commit callbacks that need to be registered for us to check
457 * whether the minimum txg delay is acceptable.
459 #define ZTEST_COMMIT_CB_MIN_REG 100
462 * If a number of txgs equal to this threshold have been created after a commit
463 * callback has been registered but not called, then we assume there is an
464 * implementation bug.
466 #define ZTEST_COMMIT_CB_THRESH (TXG_CONCURRENT_STATES + 1000)
468 extern uint64_t metaslab_gang_bang
;
469 extern uint64_t metaslab_df_alloc_threshold
;
472 ZTEST_META_DNODE
= 0,
477 static void usage(boolean_t
) __NORETURN
;
480 * These libumem hooks provide a reasonable set of defaults for the allocator's
481 * debugging facilities.
484 _umem_debug_init(void)
486 return ("default,verbose"); /* $UMEM_DEBUG setting */
490 _umem_logging_init(void)
492 return ("fail,contents"); /* $UMEM_LOGGING setting */
495 #define BACKTRACE_SZ 100
497 static void sig_handler(int signo
)
499 struct sigaction action
;
500 #ifdef __GLIBC__ /* backtrace() is a GNU extension */
502 void *buffer
[BACKTRACE_SZ
];
504 nptrs
= backtrace(buffer
, BACKTRACE_SZ
);
505 backtrace_symbols_fd(buffer
, nptrs
, STDERR_FILENO
);
509 * Restore default action and re-raise signal so SIGSEGV and
510 * SIGABRT can trigger a core dump.
512 action
.sa_handler
= SIG_DFL
;
513 sigemptyset(&action
.sa_mask
);
515 (void) sigaction(signo
, &action
, NULL
);
519 #define FATAL_MSG_SZ 1024
524 fatal(int do_perror
, char *message
, ...)
527 int save_errno
= errno
;
530 (void) fflush(stdout
);
531 buf
= umem_alloc(FATAL_MSG_SZ
, UMEM_NOFAIL
);
533 va_start(args
, message
);
534 (void) sprintf(buf
, "ztest: ");
536 (void) vsprintf(buf
+ strlen(buf
), message
, args
);
539 (void) snprintf(buf
+ strlen(buf
), FATAL_MSG_SZ
- strlen(buf
),
540 ": %s", strerror(save_errno
));
542 (void) fprintf(stderr
, "%s\n", buf
);
543 fatal_msg
= buf
; /* to ease debugging */
550 str2shift(const char *buf
)
552 const char *ends
= "BKMGTPEZ";
557 for (i
= 0; i
< strlen(ends
); i
++) {
558 if (toupper(buf
[0]) == ends
[i
])
561 if (i
== strlen(ends
)) {
562 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n",
566 if (buf
[1] == '\0' || (toupper(buf
[1]) == 'B' && buf
[2] == '\0')) {
569 (void) fprintf(stderr
, "ztest: invalid bytes suffix: %s\n", buf
);
575 nicenumtoull(const char *buf
)
580 val
= strtoull(buf
, &end
, 0);
582 (void) fprintf(stderr
, "ztest: bad numeric value: %s\n", buf
);
584 } else if (end
[0] == '.') {
585 double fval
= strtod(buf
, &end
);
586 fval
*= pow(2, str2shift(end
));
587 if (fval
> UINT64_MAX
) {
588 (void) fprintf(stderr
, "ztest: value too large: %s\n",
592 val
= (uint64_t)fval
;
594 int shift
= str2shift(end
);
595 if (shift
>= 64 || (val
<< shift
) >> shift
!= val
) {
596 (void) fprintf(stderr
, "ztest: value too large: %s\n",
606 usage(boolean_t requested
)
608 const ztest_shared_opts_t
*zo
= &ztest_opts_defaults
;
610 char nice_vdev_size
[10];
611 char nice_gang_bang
[10];
612 FILE *fp
= requested
? stdout
: stderr
;
614 nicenum(zo
->zo_vdev_size
, nice_vdev_size
);
615 nicenum(zo
->zo_metaslab_gang_bang
, nice_gang_bang
);
617 (void) fprintf(fp
, "Usage: %s\n"
618 "\t[-v vdevs (default: %llu)]\n"
619 "\t[-s size_of_each_vdev (default: %s)]\n"
620 "\t[-a alignment_shift (default: %d)] use 0 for random\n"
621 "\t[-m mirror_copies (default: %d)]\n"
622 "\t[-r raidz_disks (default: %d)]\n"
623 "\t[-R raidz_parity (default: %d)]\n"
624 "\t[-d datasets (default: %d)]\n"
625 "\t[-t threads (default: %d)]\n"
626 "\t[-g gang_block_threshold (default: %s)]\n"
627 "\t[-i init_count (default: %d)] initialize pool i times\n"
628 "\t[-k kill_percentage (default: %llu%%)]\n"
629 "\t[-p pool_name (default: %s)]\n"
630 "\t[-f dir (default: %s)] file directory for vdev files\n"
631 "\t[-M] Multi-host simulate pool imported on remote host\n"
632 "\t[-V] verbose (use multiple times for ever more blather)\n"
633 "\t[-E] use existing pool instead of creating new one\n"
634 "\t[-T time (default: %llu sec)] total run time\n"
635 "\t[-F freezeloops (default: %llu)] max loops in spa_freeze()\n"
636 "\t[-P passtime (default: %llu sec)] time per pass\n"
637 "\t[-B alt_ztest (default: <none>)] alternate ztest path\n"
638 "\t[-o variable=value] ... set global variable to an unsigned\n"
639 "\t 32-bit integer value\n"
640 "\t[-h] (print help)\n"
643 (u_longlong_t
)zo
->zo_vdevs
, /* -v */
644 nice_vdev_size
, /* -s */
645 zo
->zo_ashift
, /* -a */
646 zo
->zo_mirrors
, /* -m */
647 zo
->zo_raidz
, /* -r */
648 zo
->zo_raidz_parity
, /* -R */
649 zo
->zo_datasets
, /* -d */
650 zo
->zo_threads
, /* -t */
651 nice_gang_bang
, /* -g */
652 zo
->zo_init
, /* -i */
653 (u_longlong_t
)zo
->zo_killrate
, /* -k */
654 zo
->zo_pool
, /* -p */
656 (u_longlong_t
)zo
->zo_time
, /* -T */
657 (u_longlong_t
)zo
->zo_maxloops
, /* -F */
658 (u_longlong_t
)zo
->zo_passtime
);
659 exit(requested
? 0 : 1);
663 process_options(int argc
, char **argv
)
666 ztest_shared_opts_t
*zo
= &ztest_opts
;
670 char altdir
[MAXNAMELEN
] = { 0 };
672 bcopy(&ztest_opts_defaults
, zo
, sizeof (*zo
));
674 while ((opt
= getopt(argc
, argv
,
675 "v:s:a:m:r:R:d:t:g:i:k:p:f:MVET:P:hF:B:o:")) != EOF
) {
692 value
= nicenumtoull(optarg
);
696 zo
->zo_vdevs
= value
;
699 zo
->zo_vdev_size
= MAX(SPA_MINDEVSIZE
, value
);
702 zo
->zo_ashift
= value
;
705 zo
->zo_mirrors
= value
;
708 zo
->zo_raidz
= MAX(1, value
);
711 zo
->zo_raidz_parity
= MIN(MAX(value
, 1), 3);
714 zo
->zo_datasets
= MAX(1, value
);
717 zo
->zo_threads
= MAX(1, value
);
720 zo
->zo_metaslab_gang_bang
= MAX(SPA_MINBLOCKSIZE
<< 1,
727 zo
->zo_killrate
= value
;
730 (void) strlcpy(zo
->zo_pool
, optarg
,
731 sizeof (zo
->zo_pool
));
734 path
= realpath(optarg
, NULL
);
736 (void) fprintf(stderr
, "error: %s: %s\n",
737 optarg
, strerror(errno
));
740 (void) strlcpy(zo
->zo_dir
, path
,
741 sizeof (zo
->zo_dir
));
758 zo
->zo_passtime
= MAX(1, value
);
761 zo
->zo_maxloops
= MAX(1, value
);
764 (void) strlcpy(altdir
, optarg
, sizeof (altdir
));
767 if (set_global_var(optarg
) != 0)
780 zo
->zo_raidz_parity
= MIN(zo
->zo_raidz_parity
, zo
->zo_raidz
- 1);
783 (zo
->zo_vdevs
> 0 ? zo
->zo_time
* NANOSEC
/ zo
->zo_vdevs
:
786 if (strlen(altdir
) > 0) {
794 cmd
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
795 realaltdir
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
797 VERIFY(NULL
!= realpath(getexecname(), cmd
));
798 if (0 != access(altdir
, F_OK
)) {
799 ztest_dump_core
= B_FALSE
;
800 fatal(B_TRUE
, "invalid alternate ztest path: %s",
803 VERIFY(NULL
!= realpath(altdir
, realaltdir
));
806 * 'cmd' should be of the form "<anything>/usr/bin/<isa>/ztest".
807 * We want to extract <isa> to determine if we should use
808 * 32 or 64 bit binaries.
810 bin
= strstr(cmd
, "/usr/bin/");
811 ztest
= strstr(bin
, "/ztest");
813 isalen
= ztest
- isa
;
814 (void) snprintf(zo
->zo_alt_ztest
, sizeof (zo
->zo_alt_ztest
),
815 "%s/usr/bin/%.*s/ztest", realaltdir
, isalen
, isa
);
816 (void) snprintf(zo
->zo_alt_libpath
, sizeof (zo
->zo_alt_libpath
),
817 "%s/usr/lib/%.*s", realaltdir
, isalen
, isa
);
819 if (0 != access(zo
->zo_alt_ztest
, X_OK
)) {
820 ztest_dump_core
= B_FALSE
;
821 fatal(B_TRUE
, "invalid alternate ztest: %s",
823 } else if (0 != access(zo
->zo_alt_libpath
, X_OK
)) {
824 ztest_dump_core
= B_FALSE
;
825 fatal(B_TRUE
, "invalid alternate lib directory %s",
829 umem_free(cmd
, MAXPATHLEN
);
830 umem_free(realaltdir
, MAXPATHLEN
);
835 ztest_kill(ztest_shared_t
*zs
)
837 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(ztest_spa
));
838 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(ztest_spa
));
841 * Before we kill off ztest, make sure that the config is updated.
842 * See comment above spa_config_sync().
844 mutex_enter(&spa_namespace_lock
);
845 spa_config_sync(ztest_spa
, B_FALSE
, B_FALSE
);
846 mutex_exit(&spa_namespace_lock
);
848 (void) kill(getpid(), SIGKILL
);
852 ztest_random(uint64_t range
)
856 ASSERT3S(ztest_fd_rand
, >=, 0);
861 if (read(ztest_fd_rand
, &r
, sizeof (r
)) != sizeof (r
))
862 fatal(1, "short read from /dev/urandom");
869 ztest_record_enospc(const char *s
)
871 ztest_shared
->zs_enospc_count
++;
875 ztest_get_ashift(void)
877 if (ztest_opts
.zo_ashift
== 0)
878 return (SPA_MINBLOCKSHIFT
+ ztest_random(5));
879 return (ztest_opts
.zo_ashift
);
883 make_vdev_file(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
)
889 pathbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
892 ashift
= ztest_get_ashift();
898 vdev
= ztest_shared
->zs_vdev_aux
;
899 (void) snprintf(path
, MAXPATHLEN
,
900 ztest_aux_template
, ztest_opts
.zo_dir
,
901 pool
== NULL
? ztest_opts
.zo_pool
: pool
,
904 vdev
= ztest_shared
->zs_vdev_next_leaf
++;
905 (void) snprintf(path
, MAXPATHLEN
,
906 ztest_dev_template
, ztest_opts
.zo_dir
,
907 pool
== NULL
? ztest_opts
.zo_pool
: pool
, vdev
);
912 int fd
= open(path
, O_RDWR
| O_CREAT
| O_TRUNC
, 0666);
914 fatal(1, "can't open %s", path
);
915 if (ftruncate(fd
, size
) != 0)
916 fatal(1, "can't ftruncate %s", path
);
920 VERIFY(nvlist_alloc(&file
, NV_UNIQUE_NAME
, 0) == 0);
921 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_FILE
) == 0);
922 VERIFY(nvlist_add_string(file
, ZPOOL_CONFIG_PATH
, path
) == 0);
923 VERIFY(nvlist_add_uint64(file
, ZPOOL_CONFIG_ASHIFT
, ashift
) == 0);
924 umem_free(pathbuf
, MAXPATHLEN
);
930 make_vdev_raidz(char *path
, char *aux
, char *pool
, size_t size
,
931 uint64_t ashift
, int r
)
933 nvlist_t
*raidz
, **child
;
937 return (make_vdev_file(path
, aux
, pool
, size
, ashift
));
938 child
= umem_alloc(r
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
940 for (c
= 0; c
< r
; c
++)
941 child
[c
] = make_vdev_file(path
, aux
, pool
, size
, ashift
);
943 VERIFY(nvlist_alloc(&raidz
, NV_UNIQUE_NAME
, 0) == 0);
944 VERIFY(nvlist_add_string(raidz
, ZPOOL_CONFIG_TYPE
,
945 VDEV_TYPE_RAIDZ
) == 0);
946 VERIFY(nvlist_add_uint64(raidz
, ZPOOL_CONFIG_NPARITY
,
947 ztest_opts
.zo_raidz_parity
) == 0);
948 VERIFY(nvlist_add_nvlist_array(raidz
, ZPOOL_CONFIG_CHILDREN
,
951 for (c
= 0; c
< r
; c
++)
952 nvlist_free(child
[c
]);
954 umem_free(child
, r
* sizeof (nvlist_t
*));
960 make_vdev_mirror(char *path
, char *aux
, char *pool
, size_t size
,
961 uint64_t ashift
, int r
, int m
)
963 nvlist_t
*mirror
, **child
;
967 return (make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
));
969 child
= umem_alloc(m
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
971 for (c
= 0; c
< m
; c
++)
972 child
[c
] = make_vdev_raidz(path
, aux
, pool
, size
, ashift
, r
);
974 VERIFY(nvlist_alloc(&mirror
, NV_UNIQUE_NAME
, 0) == 0);
975 VERIFY(nvlist_add_string(mirror
, ZPOOL_CONFIG_TYPE
,
976 VDEV_TYPE_MIRROR
) == 0);
977 VERIFY(nvlist_add_nvlist_array(mirror
, ZPOOL_CONFIG_CHILDREN
,
980 for (c
= 0; c
< m
; c
++)
981 nvlist_free(child
[c
]);
983 umem_free(child
, m
* sizeof (nvlist_t
*));
989 make_vdev_root(char *path
, char *aux
, char *pool
, size_t size
, uint64_t ashift
,
990 int log
, int r
, int m
, int t
)
992 nvlist_t
*root
, **child
;
997 child
= umem_alloc(t
* sizeof (nvlist_t
*), UMEM_NOFAIL
);
999 for (c
= 0; c
< t
; c
++) {
1000 child
[c
] = make_vdev_mirror(path
, aux
, pool
, size
, ashift
,
1002 VERIFY(nvlist_add_uint64(child
[c
], ZPOOL_CONFIG_IS_LOG
,
1006 VERIFY(nvlist_alloc(&root
, NV_UNIQUE_NAME
, 0) == 0);
1007 VERIFY(nvlist_add_string(root
, ZPOOL_CONFIG_TYPE
, VDEV_TYPE_ROOT
) == 0);
1008 VERIFY(nvlist_add_nvlist_array(root
, aux
? aux
: ZPOOL_CONFIG_CHILDREN
,
1011 for (c
= 0; c
< t
; c
++)
1012 nvlist_free(child
[c
]);
1014 umem_free(child
, t
* sizeof (nvlist_t
*));
1020 * Find a random spa version. Returns back a random spa version in the
1021 * range [initial_version, SPA_VERSION_FEATURES].
1024 ztest_random_spa_version(uint64_t initial_version
)
1026 uint64_t version
= initial_version
;
1028 if (version
<= SPA_VERSION_BEFORE_FEATURES
) {
1030 ztest_random(SPA_VERSION_BEFORE_FEATURES
- version
+ 1);
1033 if (version
> SPA_VERSION_BEFORE_FEATURES
)
1034 version
= SPA_VERSION_FEATURES
;
1036 ASSERT(SPA_VERSION_IS_SUPPORTED(version
));
1041 ztest_random_blocksize(void)
1044 * Choose a block size >= the ashift.
1045 * If the SPA supports new MAXBLOCKSIZE, test up to 1MB blocks.
1047 int maxbs
= SPA_OLD_MAXBLOCKSHIFT
;
1048 if (spa_maxblocksize(ztest_spa
) == SPA_MAXBLOCKSIZE
)
1050 uint64_t block_shift
=
1051 ztest_random(maxbs
- ztest_spa
->spa_max_ashift
+ 1);
1052 return (1 << (SPA_MINBLOCKSHIFT
+ block_shift
));
1056 ztest_random_dnodesize(void)
1059 int max_slots
= spa_maxdnodesize(ztest_spa
) >> DNODE_SHIFT
;
1061 if (max_slots
== DNODE_MIN_SLOTS
)
1062 return (DNODE_MIN_SIZE
);
1065 * Weight the random distribution more heavily toward smaller
1066 * dnode sizes since that is more likely to reflect real-world
1069 ASSERT3U(max_slots
, >, 4);
1070 switch (ztest_random(10)) {
1072 slots
= 5 + ztest_random(max_slots
- 4);
1075 slots
= 2 + ztest_random(3);
1082 return (slots
<< DNODE_SHIFT
);
1086 ztest_random_ibshift(void)
1088 return (DN_MIN_INDBLKSHIFT
+
1089 ztest_random(DN_MAX_INDBLKSHIFT
- DN_MIN_INDBLKSHIFT
+ 1));
1093 ztest_random_vdev_top(spa_t
*spa
, boolean_t log_ok
)
1096 vdev_t
*rvd
= spa
->spa_root_vdev
;
1099 ASSERT(spa_config_held(spa
, SCL_ALL
, RW_READER
) != 0);
1102 top
= ztest_random(rvd
->vdev_children
);
1103 tvd
= rvd
->vdev_child
[top
];
1104 } while (tvd
->vdev_ishole
|| (tvd
->vdev_islog
&& !log_ok
) ||
1105 tvd
->vdev_mg
== NULL
|| tvd
->vdev_mg
->mg_class
== NULL
);
1111 ztest_random_dsl_prop(zfs_prop_t prop
)
1116 value
= zfs_prop_random_value(prop
, ztest_random(-1ULL));
1117 } while (prop
== ZFS_PROP_CHECKSUM
&& value
== ZIO_CHECKSUM_OFF
);
1123 ztest_dsl_prop_set_uint64(char *osname
, zfs_prop_t prop
, uint64_t value
,
1126 const char *propname
= zfs_prop_to_name(prop
);
1127 const char *valname
;
1132 error
= dsl_prop_set_int(osname
, propname
,
1133 (inherit
? ZPROP_SRC_NONE
: ZPROP_SRC_LOCAL
), value
);
1135 if (error
== ENOSPC
) {
1136 ztest_record_enospc(FTAG
);
1141 setpoint
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
1142 VERIFY0(dsl_prop_get_integer(osname
, propname
, &curval
, setpoint
));
1144 if (ztest_opts
.zo_verbose
>= 6) {
1147 err
= zfs_prop_index_to_string(prop
, curval
, &valname
);
1149 (void) printf("%s %s = %llu at '%s'\n", osname
,
1150 propname
, (unsigned long long)curval
, setpoint
);
1152 (void) printf("%s %s = %s at '%s'\n",
1153 osname
, propname
, valname
, setpoint
);
1155 umem_free(setpoint
, MAXPATHLEN
);
1161 ztest_spa_prop_set_uint64(zpool_prop_t prop
, uint64_t value
)
1163 spa_t
*spa
= ztest_spa
;
1164 nvlist_t
*props
= NULL
;
1167 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
1168 VERIFY(nvlist_add_uint64(props
, zpool_prop_to_name(prop
), value
) == 0);
1170 error
= spa_prop_set(spa
, props
);
1174 if (error
== ENOSPC
) {
1175 ztest_record_enospc(FTAG
);
1185 * Object and range lock mechanics
1188 list_node_t z_lnode
;
1189 refcount_t z_refcnt
;
1191 zfs_rlock_t z_range_lock
;
1196 ztest_znode_t
*z_ztznode
;
1199 static ztest_znode_t
*
1200 ztest_znode_init(uint64_t object
)
1202 ztest_znode_t
*zp
= umem_alloc(sizeof (*zp
), UMEM_NOFAIL
);
1204 list_link_init(&zp
->z_lnode
);
1205 refcount_create(&zp
->z_refcnt
);
1206 zp
->z_object
= object
;
1207 zfs_rlock_init(&zp
->z_range_lock
);
1213 ztest_znode_fini(ztest_znode_t
*zp
)
1215 ASSERT(refcount_is_zero(&zp
->z_refcnt
));
1216 zfs_rlock_destroy(&zp
->z_range_lock
);
1218 refcount_destroy(&zp
->z_refcnt
);
1219 list_link_init(&zp
->z_lnode
);
1220 umem_free(zp
, sizeof (*zp
));
1224 ztest_zll_init(zll_t
*zll
)
1226 mutex_init(&zll
->z_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1227 list_create(&zll
->z_list
, sizeof (ztest_znode_t
),
1228 offsetof(ztest_znode_t
, z_lnode
));
1232 ztest_zll_destroy(zll_t
*zll
)
1234 list_destroy(&zll
->z_list
);
1235 mutex_destroy(&zll
->z_lock
);
1238 #define RL_TAG "range_lock"
1239 static ztest_znode_t
*
1240 ztest_znode_get(ztest_ds_t
*zd
, uint64_t object
)
1242 zll_t
*zll
= &zd
->zd_range_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1243 ztest_znode_t
*zp
= NULL
;
1244 mutex_enter(&zll
->z_lock
);
1245 for (zp
= list_head(&zll
->z_list
); (zp
);
1246 zp
= list_next(&zll
->z_list
, zp
)) {
1247 if (zp
->z_object
== object
) {
1248 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1253 zp
= ztest_znode_init(object
);
1254 refcount_add(&zp
->z_refcnt
, RL_TAG
);
1255 list_insert_head(&zll
->z_list
, zp
);
1257 mutex_exit(&zll
->z_lock
);
1262 ztest_znode_put(ztest_ds_t
*zd
, ztest_znode_t
*zp
)
1265 ASSERT3U(zp
->z_object
, !=, 0);
1266 zll
= &zd
->zd_range_lock
[zp
->z_object
& (ZTEST_OBJECT_LOCKS
- 1)];
1267 mutex_enter(&zll
->z_lock
);
1268 refcount_remove(&zp
->z_refcnt
, RL_TAG
);
1269 if (refcount_is_zero(&zp
->z_refcnt
)) {
1270 list_remove(&zll
->z_list
, zp
);
1271 ztest_znode_fini(zp
);
1273 mutex_exit(&zll
->z_lock
);
1278 ztest_rll_init(rll_t
*rll
)
1280 rll
->rll_writer
= NULL
;
1281 rll
->rll_readers
= 0;
1282 mutex_init(&rll
->rll_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1283 cv_init(&rll
->rll_cv
, NULL
, CV_DEFAULT
, NULL
);
1287 ztest_rll_destroy(rll_t
*rll
)
1289 ASSERT(rll
->rll_writer
== NULL
);
1290 ASSERT(rll
->rll_readers
== 0);
1291 mutex_destroy(&rll
->rll_lock
);
1292 cv_destroy(&rll
->rll_cv
);
1296 ztest_rll_lock(rll_t
*rll
, rl_type_t type
)
1298 mutex_enter(&rll
->rll_lock
);
1300 if (type
== RL_READER
) {
1301 while (rll
->rll_writer
!= NULL
)
1302 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1305 while (rll
->rll_writer
!= NULL
|| rll
->rll_readers
)
1306 (void) cv_wait(&rll
->rll_cv
, &rll
->rll_lock
);
1307 rll
->rll_writer
= curthread
;
1310 mutex_exit(&rll
->rll_lock
);
1314 ztest_rll_unlock(rll_t
*rll
)
1316 mutex_enter(&rll
->rll_lock
);
1318 if (rll
->rll_writer
) {
1319 ASSERT(rll
->rll_readers
== 0);
1320 rll
->rll_writer
= NULL
;
1322 ASSERT(rll
->rll_readers
!= 0);
1323 ASSERT(rll
->rll_writer
== NULL
);
1327 if (rll
->rll_writer
== NULL
&& rll
->rll_readers
== 0)
1328 cv_broadcast(&rll
->rll_cv
);
1330 mutex_exit(&rll
->rll_lock
);
1334 ztest_object_lock(ztest_ds_t
*zd
, uint64_t object
, rl_type_t type
)
1336 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1338 ztest_rll_lock(rll
, type
);
1342 ztest_object_unlock(ztest_ds_t
*zd
, uint64_t object
)
1344 rll_t
*rll
= &zd
->zd_object_lock
[object
& (ZTEST_OBJECT_LOCKS
- 1)];
1346 ztest_rll_unlock(rll
);
1349 static ztest_zrl_t
*
1350 ztest_zrl_init(rl_t
*rl
, ztest_znode_t
*zp
)
1352 ztest_zrl_t
*zrl
= umem_alloc(sizeof (*zrl
), UMEM_NOFAIL
);
1354 zrl
->z_ztznode
= zp
;
1359 ztest_zrl_fini(ztest_zrl_t
*zrl
)
1361 umem_free(zrl
, sizeof (*zrl
));
1364 static ztest_zrl_t
*
1365 ztest_range_lock(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
,
1366 uint64_t size
, rl_type_t type
)
1368 ztest_znode_t
*zp
= ztest_znode_get(zd
, object
);
1369 rl_t
*rl
= zfs_range_lock(&zp
->z_range_lock
, offset
,
1371 return (ztest_zrl_init(rl
, zp
));
1375 ztest_range_unlock(ztest_ds_t
*zd
, ztest_zrl_t
*zrl
)
1377 zfs_range_unlock(zrl
->z_rl
);
1378 ztest_znode_put(zd
, zrl
->z_ztznode
);
1379 ztest_zrl_fini(zrl
);
1383 ztest_zd_init(ztest_ds_t
*zd
, ztest_shared_ds_t
*szd
, objset_t
*os
)
1386 zd
->zd_zilog
= dmu_objset_zil(os
);
1387 zd
->zd_shared
= szd
;
1388 dmu_objset_name(os
, zd
->zd_name
);
1391 if (zd
->zd_shared
!= NULL
)
1392 zd
->zd_shared
->zd_seq
= 0;
1394 VERIFY(rwlock_init(&zd
->zd_zilog_lock
, USYNC_THREAD
, NULL
) == 0);
1395 mutex_init(&zd
->zd_dirobj_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
1397 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1398 ztest_rll_init(&zd
->zd_object_lock
[l
]);
1400 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1401 ztest_zll_init(&zd
->zd_range_lock
[l
]);
1405 ztest_zd_fini(ztest_ds_t
*zd
)
1409 mutex_destroy(&zd
->zd_dirobj_lock
);
1410 (void) rwlock_destroy(&zd
->zd_zilog_lock
);
1412 for (l
= 0; l
< ZTEST_OBJECT_LOCKS
; l
++)
1413 ztest_rll_destroy(&zd
->zd_object_lock
[l
]);
1415 for (l
= 0; l
< ZTEST_RANGE_LOCKS
; l
++)
1416 ztest_zll_destroy(&zd
->zd_range_lock
[l
]);
1419 #define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
1422 ztest_tx_assign(dmu_tx_t
*tx
, uint64_t txg_how
, const char *tag
)
1428 * Attempt to assign tx to some transaction group.
1430 error
= dmu_tx_assign(tx
, txg_how
);
1432 if (error
== ERESTART
) {
1433 ASSERT(txg_how
== TXG_NOWAIT
);
1436 ASSERT3U(error
, ==, ENOSPC
);
1437 ztest_record_enospc(tag
);
1442 txg
= dmu_tx_get_txg(tx
);
1448 ztest_pattern_set(void *buf
, uint64_t size
, uint64_t value
)
1451 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1459 ztest_pattern_match(void *buf
, uint64_t size
, uint64_t value
)
1462 uint64_t *ip_end
= (uint64_t *)((uintptr_t)buf
+ (uintptr_t)size
);
1466 diff
|= (value
- *ip
++);
1473 ztest_bt_generate(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1474 uint64_t dnodesize
, uint64_t offset
, uint64_t gen
, uint64_t txg
,
1477 bt
->bt_magic
= BT_MAGIC
;
1478 bt
->bt_objset
= dmu_objset_id(os
);
1479 bt
->bt_object
= object
;
1480 bt
->bt_dnodesize
= dnodesize
;
1481 bt
->bt_offset
= offset
;
1484 bt
->bt_crtxg
= crtxg
;
1488 ztest_bt_verify(ztest_block_tag_t
*bt
, objset_t
*os
, uint64_t object
,
1489 uint64_t dnodesize
, uint64_t offset
, uint64_t gen
, uint64_t txg
,
1492 ASSERT3U(bt
->bt_magic
, ==, BT_MAGIC
);
1493 ASSERT3U(bt
->bt_objset
, ==, dmu_objset_id(os
));
1494 ASSERT3U(bt
->bt_object
, ==, object
);
1495 ASSERT3U(bt
->bt_dnodesize
, ==, dnodesize
);
1496 ASSERT3U(bt
->bt_offset
, ==, offset
);
1497 ASSERT3U(bt
->bt_gen
, <=, gen
);
1498 ASSERT3U(bt
->bt_txg
, <=, txg
);
1499 ASSERT3U(bt
->bt_crtxg
, ==, crtxg
);
1502 static ztest_block_tag_t
*
1503 ztest_bt_bonus(dmu_buf_t
*db
)
1505 dmu_object_info_t doi
;
1506 ztest_block_tag_t
*bt
;
1508 dmu_object_info_from_db(db
, &doi
);
1509 ASSERT3U(doi
.doi_bonus_size
, <=, db
->db_size
);
1510 ASSERT3U(doi
.doi_bonus_size
, >=, sizeof (*bt
));
1511 bt
= (void *)((char *)db
->db_data
+ doi
.doi_bonus_size
- sizeof (*bt
));
1517 * Generate a token to fill up unused bonus buffer space. Try to make
1518 * it unique to the object, generation, and offset to verify that data
1519 * is not getting overwritten by data from other dnodes.
1521 #define ZTEST_BONUS_FILL_TOKEN(obj, ds, gen, offset) \
1522 (((ds) << 48) | ((gen) << 32) | ((obj) << 8) | (offset))
1525 * Fill up the unused bonus buffer region before the block tag with a
1526 * verifiable pattern. Filling the whole bonus area with non-zero data
1527 * helps ensure that all dnode traversal code properly skips the
1528 * interior regions of large dnodes.
1531 ztest_fill_unused_bonus(dmu_buf_t
*db
, void *end
, uint64_t obj
,
1532 objset_t
*os
, uint64_t gen
)
1536 ASSERT(IS_P2ALIGNED((char *)end
- (char *)db
->db_data
, 8));
1538 for (bonusp
= db
->db_data
; bonusp
< (uint64_t *)end
; bonusp
++) {
1539 uint64_t token
= ZTEST_BONUS_FILL_TOKEN(obj
, dmu_objset_id(os
),
1540 gen
, bonusp
- (uint64_t *)db
->db_data
);
1546 * Verify that the unused area of a bonus buffer is filled with the
1550 ztest_verify_unused_bonus(dmu_buf_t
*db
, void *end
, uint64_t obj
,
1551 objset_t
*os
, uint64_t gen
)
1555 for (bonusp
= db
->db_data
; bonusp
< (uint64_t *)end
; bonusp
++) {
1556 uint64_t token
= ZTEST_BONUS_FILL_TOKEN(obj
, dmu_objset_id(os
),
1557 gen
, bonusp
- (uint64_t *)db
->db_data
);
1558 VERIFY3U(*bonusp
, ==, token
);
1566 #define lrz_type lr_mode
1567 #define lrz_blocksize lr_uid
1568 #define lrz_ibshift lr_gid
1569 #define lrz_bonustype lr_rdev
1570 #define lrz_dnodesize lr_crtime[1]
1573 ztest_log_create(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_create_t
*lr
)
1575 char *name
= (void *)(lr
+ 1); /* name follows lr */
1576 size_t namesize
= strlen(name
) + 1;
1579 if (zil_replaying(zd
->zd_zilog
, tx
))
1582 itx
= zil_itx_create(TX_CREATE
, sizeof (*lr
) + namesize
);
1583 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1584 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1586 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1590 ztest_log_remove(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_remove_t
*lr
, uint64_t object
)
1592 char *name
= (void *)(lr
+ 1); /* name follows lr */
1593 size_t namesize
= strlen(name
) + 1;
1596 if (zil_replaying(zd
->zd_zilog
, tx
))
1599 itx
= zil_itx_create(TX_REMOVE
, sizeof (*lr
) + namesize
);
1600 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1601 sizeof (*lr
) + namesize
- sizeof (lr_t
));
1603 itx
->itx_oid
= object
;
1604 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1608 ztest_log_write(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_write_t
*lr
)
1611 itx_wr_state_t write_state
= ztest_random(WR_NUM_STATES
);
1613 if (zil_replaying(zd
->zd_zilog
, tx
))
1616 if (lr
->lr_length
> ZIL_MAX_LOG_DATA
)
1617 write_state
= WR_INDIRECT
;
1619 itx
= zil_itx_create(TX_WRITE
,
1620 sizeof (*lr
) + (write_state
== WR_COPIED
? lr
->lr_length
: 0));
1622 if (write_state
== WR_COPIED
&&
1623 dmu_read(zd
->zd_os
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1624 ((lr_write_t
*)&itx
->itx_lr
) + 1, DMU_READ_NO_PREFETCH
) != 0) {
1625 zil_itx_destroy(itx
);
1626 itx
= zil_itx_create(TX_WRITE
, sizeof (*lr
));
1627 write_state
= WR_NEED_COPY
;
1629 itx
->itx_private
= zd
;
1630 itx
->itx_wr_state
= write_state
;
1631 itx
->itx_sync
= (ztest_random(8) == 0);
1633 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1634 sizeof (*lr
) - sizeof (lr_t
));
1636 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1640 ztest_log_truncate(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_truncate_t
*lr
)
1644 if (zil_replaying(zd
->zd_zilog
, tx
))
1647 itx
= zil_itx_create(TX_TRUNCATE
, sizeof (*lr
));
1648 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1649 sizeof (*lr
) - sizeof (lr_t
));
1651 itx
->itx_sync
= B_FALSE
;
1652 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1656 ztest_log_setattr(ztest_ds_t
*zd
, dmu_tx_t
*tx
, lr_setattr_t
*lr
)
1660 if (zil_replaying(zd
->zd_zilog
, tx
))
1663 itx
= zil_itx_create(TX_SETATTR
, sizeof (*lr
));
1664 bcopy(&lr
->lr_common
+ 1, &itx
->itx_lr
+ 1,
1665 sizeof (*lr
) - sizeof (lr_t
));
1667 itx
->itx_sync
= B_FALSE
;
1668 zil_itx_assign(zd
->zd_zilog
, itx
, tx
);
1675 ztest_replay_create(ztest_ds_t
*zd
, lr_create_t
*lr
, boolean_t byteswap
)
1677 char *name
= (void *)(lr
+ 1); /* name follows lr */
1678 objset_t
*os
= zd
->zd_os
;
1679 ztest_block_tag_t
*bbt
;
1687 byteswap_uint64_array(lr
, sizeof (*lr
));
1689 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1690 ASSERT(name
[0] != '\0');
1692 tx
= dmu_tx_create(os
);
1694 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_TRUE
, name
);
1696 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1697 dmu_tx_hold_zap(tx
, DMU_NEW_OBJECT
, B_TRUE
, NULL
);
1699 dmu_tx_hold_bonus(tx
, DMU_NEW_OBJECT
);
1702 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1706 ASSERT(dmu_objset_zil(os
)->zl_replay
== !!lr
->lr_foid
);
1707 bonuslen
= DN_BONUS_SIZE(lr
->lrz_dnodesize
);
1709 if (lr
->lrz_type
== DMU_OT_ZAP_OTHER
) {
1710 if (lr
->lr_foid
== 0) {
1711 lr
->lr_foid
= zap_create_dnsize(os
,
1712 lr
->lrz_type
, lr
->lrz_bonustype
,
1713 bonuslen
, lr
->lrz_dnodesize
, tx
);
1715 error
= zap_create_claim_dnsize(os
, lr
->lr_foid
,
1716 lr
->lrz_type
, lr
->lrz_bonustype
,
1717 bonuslen
, lr
->lrz_dnodesize
, tx
);
1720 if (lr
->lr_foid
== 0) {
1721 lr
->lr_foid
= dmu_object_alloc_dnsize(os
,
1722 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1723 bonuslen
, lr
->lrz_dnodesize
, tx
);
1725 error
= dmu_object_claim_dnsize(os
, lr
->lr_foid
,
1726 lr
->lrz_type
, 0, lr
->lrz_bonustype
,
1727 bonuslen
, lr
->lrz_dnodesize
, tx
);
1732 ASSERT3U(error
, ==, EEXIST
);
1733 ASSERT(zd
->zd_zilog
->zl_replay
);
1738 ASSERT(lr
->lr_foid
!= 0);
1740 if (lr
->lrz_type
!= DMU_OT_ZAP_OTHER
)
1741 VERIFY3U(0, ==, dmu_object_set_blocksize(os
, lr
->lr_foid
,
1742 lr
->lrz_blocksize
, lr
->lrz_ibshift
, tx
));
1744 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1745 bbt
= ztest_bt_bonus(db
);
1746 dmu_buf_will_dirty(db
, tx
);
1747 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, lr
->lrz_dnodesize
, -1ULL,
1748 lr
->lr_gen
, txg
, txg
);
1749 ztest_fill_unused_bonus(db
, bbt
, lr
->lr_foid
, os
, lr
->lr_gen
);
1750 dmu_buf_rele(db
, FTAG
);
1752 VERIFY3U(0, ==, zap_add(os
, lr
->lr_doid
, name
, sizeof (uint64_t), 1,
1755 (void) ztest_log_create(zd
, tx
, lr
);
1763 ztest_replay_remove(ztest_ds_t
*zd
, lr_remove_t
*lr
, boolean_t byteswap
)
1765 char *name
= (void *)(lr
+ 1); /* name follows lr */
1766 objset_t
*os
= zd
->zd_os
;
1767 dmu_object_info_t doi
;
1769 uint64_t object
, txg
;
1772 byteswap_uint64_array(lr
, sizeof (*lr
));
1774 ASSERT(lr
->lr_doid
== ZTEST_DIROBJ
);
1775 ASSERT(name
[0] != '\0');
1778 zap_lookup(os
, lr
->lr_doid
, name
, sizeof (object
), 1, &object
));
1779 ASSERT(object
!= 0);
1781 ztest_object_lock(zd
, object
, RL_WRITER
);
1783 VERIFY3U(0, ==, dmu_object_info(os
, object
, &doi
));
1785 tx
= dmu_tx_create(os
);
1787 dmu_tx_hold_zap(tx
, lr
->lr_doid
, B_FALSE
, name
);
1788 dmu_tx_hold_free(tx
, object
, 0, DMU_OBJECT_END
);
1790 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1792 ztest_object_unlock(zd
, object
);
1796 if (doi
.doi_type
== DMU_OT_ZAP_OTHER
) {
1797 VERIFY3U(0, ==, zap_destroy(os
, object
, tx
));
1799 VERIFY3U(0, ==, dmu_object_free(os
, object
, tx
));
1802 VERIFY3U(0, ==, zap_remove(os
, lr
->lr_doid
, name
, tx
));
1804 (void) ztest_log_remove(zd
, tx
, lr
, object
);
1808 ztest_object_unlock(zd
, object
);
1814 ztest_replay_write(ztest_ds_t
*zd
, lr_write_t
*lr
, boolean_t byteswap
)
1816 objset_t
*os
= zd
->zd_os
;
1817 void *data
= lr
+ 1; /* data follows lr */
1818 uint64_t offset
, length
;
1819 ztest_block_tag_t
*bt
= data
;
1820 ztest_block_tag_t
*bbt
;
1821 uint64_t gen
, txg
, lrtxg
, crtxg
;
1822 dmu_object_info_t doi
;
1825 arc_buf_t
*abuf
= NULL
;
1829 byteswap_uint64_array(lr
, sizeof (*lr
));
1831 offset
= lr
->lr_offset
;
1832 length
= lr
->lr_length
;
1834 /* If it's a dmu_sync() block, write the whole block */
1835 if (lr
->lr_common
.lrc_reclen
== sizeof (lr_write_t
)) {
1836 uint64_t blocksize
= BP_GET_LSIZE(&lr
->lr_blkptr
);
1837 if (length
< blocksize
) {
1838 offset
-= offset
% blocksize
;
1843 if (bt
->bt_magic
== BSWAP_64(BT_MAGIC
))
1844 byteswap_uint64_array(bt
, sizeof (*bt
));
1846 if (bt
->bt_magic
!= BT_MAGIC
)
1849 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1850 rl
= ztest_range_lock(zd
, lr
->lr_foid
, offset
, length
, RL_WRITER
);
1852 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1854 dmu_object_info_from_db(db
, &doi
);
1856 bbt
= ztest_bt_bonus(db
);
1857 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
1859 crtxg
= bbt
->bt_crtxg
;
1860 lrtxg
= lr
->lr_common
.lrc_txg
;
1862 tx
= dmu_tx_create(os
);
1864 dmu_tx_hold_write(tx
, lr
->lr_foid
, offset
, length
);
1866 if (ztest_random(8) == 0 && length
== doi
.doi_data_block_size
&&
1867 P2PHASE(offset
, length
) == 0)
1868 abuf
= dmu_request_arcbuf(db
, length
);
1870 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1873 dmu_return_arcbuf(abuf
);
1874 dmu_buf_rele(db
, FTAG
);
1875 ztest_range_unlock(zd
, rl
);
1876 ztest_object_unlock(zd
, lr
->lr_foid
);
1882 * Usually, verify the old data before writing new data --
1883 * but not always, because we also want to verify correct
1884 * behavior when the data was not recently read into cache.
1886 ASSERT(offset
% doi
.doi_data_block_size
== 0);
1887 if (ztest_random(4) != 0) {
1888 int prefetch
= ztest_random(2) ?
1889 DMU_READ_PREFETCH
: DMU_READ_NO_PREFETCH
;
1890 ztest_block_tag_t rbt
;
1892 VERIFY(dmu_read(os
, lr
->lr_foid
, offset
,
1893 sizeof (rbt
), &rbt
, prefetch
) == 0);
1894 if (rbt
.bt_magic
== BT_MAGIC
) {
1895 ztest_bt_verify(&rbt
, os
, lr
->lr_foid
, 0,
1896 offset
, gen
, txg
, crtxg
);
1901 * Writes can appear to be newer than the bonus buffer because
1902 * the ztest_get_data() callback does a dmu_read() of the
1903 * open-context data, which may be different than the data
1904 * as it was when the write was generated.
1906 if (zd
->zd_zilog
->zl_replay
) {
1907 ztest_bt_verify(bt
, os
, lr
->lr_foid
, 0, offset
,
1908 MAX(gen
, bt
->bt_gen
), MAX(txg
, lrtxg
),
1913 * Set the bt's gen/txg to the bonus buffer's gen/txg
1914 * so that all of the usual ASSERTs will work.
1916 ztest_bt_generate(bt
, os
, lr
->lr_foid
, 0, offset
, gen
, txg
,
1921 dmu_write(os
, lr
->lr_foid
, offset
, length
, data
, tx
);
1923 bcopy(data
, abuf
->b_data
, length
);
1924 dmu_assign_arcbuf(db
, offset
, abuf
, tx
);
1927 (void) ztest_log_write(zd
, tx
, lr
);
1929 dmu_buf_rele(db
, FTAG
);
1933 ztest_range_unlock(zd
, rl
);
1934 ztest_object_unlock(zd
, lr
->lr_foid
);
1940 ztest_replay_truncate(ztest_ds_t
*zd
, lr_truncate_t
*lr
, boolean_t byteswap
)
1942 objset_t
*os
= zd
->zd_os
;
1948 byteswap_uint64_array(lr
, sizeof (*lr
));
1950 ztest_object_lock(zd
, lr
->lr_foid
, RL_READER
);
1951 rl
= ztest_range_lock(zd
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
,
1954 tx
= dmu_tx_create(os
);
1956 dmu_tx_hold_free(tx
, lr
->lr_foid
, lr
->lr_offset
, lr
->lr_length
);
1958 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1960 ztest_range_unlock(zd
, rl
);
1961 ztest_object_unlock(zd
, lr
->lr_foid
);
1965 VERIFY(dmu_free_range(os
, lr
->lr_foid
, lr
->lr_offset
,
1966 lr
->lr_length
, tx
) == 0);
1968 (void) ztest_log_truncate(zd
, tx
, lr
);
1972 ztest_range_unlock(zd
, rl
);
1973 ztest_object_unlock(zd
, lr
->lr_foid
);
1979 ztest_replay_setattr(ztest_ds_t
*zd
, lr_setattr_t
*lr
, boolean_t byteswap
)
1981 objset_t
*os
= zd
->zd_os
;
1984 ztest_block_tag_t
*bbt
;
1985 uint64_t txg
, lrtxg
, crtxg
, dnodesize
;
1988 byteswap_uint64_array(lr
, sizeof (*lr
));
1990 ztest_object_lock(zd
, lr
->lr_foid
, RL_WRITER
);
1992 VERIFY3U(0, ==, dmu_bonus_hold(os
, lr
->lr_foid
, FTAG
, &db
));
1994 tx
= dmu_tx_create(os
);
1995 dmu_tx_hold_bonus(tx
, lr
->lr_foid
);
1997 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
1999 dmu_buf_rele(db
, FTAG
);
2000 ztest_object_unlock(zd
, lr
->lr_foid
);
2004 bbt
= ztest_bt_bonus(db
);
2005 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
2006 crtxg
= bbt
->bt_crtxg
;
2007 lrtxg
= lr
->lr_common
.lrc_txg
;
2008 dnodesize
= bbt
->bt_dnodesize
;
2010 if (zd
->zd_zilog
->zl_replay
) {
2011 ASSERT(lr
->lr_size
!= 0);
2012 ASSERT(lr
->lr_mode
!= 0);
2016 * Randomly change the size and increment the generation.
2018 lr
->lr_size
= (ztest_random(db
->db_size
/ sizeof (*bbt
)) + 1) *
2020 lr
->lr_mode
= bbt
->bt_gen
+ 1;
2025 * Verify that the current bonus buffer is not newer than our txg.
2027 ztest_bt_verify(bbt
, os
, lr
->lr_foid
, dnodesize
, -1ULL, lr
->lr_mode
,
2028 MAX(txg
, lrtxg
), crtxg
);
2030 dmu_buf_will_dirty(db
, tx
);
2032 ASSERT3U(lr
->lr_size
, >=, sizeof (*bbt
));
2033 ASSERT3U(lr
->lr_size
, <=, db
->db_size
);
2034 VERIFY0(dmu_set_bonus(db
, lr
->lr_size
, tx
));
2035 bbt
= ztest_bt_bonus(db
);
2037 ztest_bt_generate(bbt
, os
, lr
->lr_foid
, dnodesize
, -1ULL, lr
->lr_mode
,
2039 ztest_fill_unused_bonus(db
, bbt
, lr
->lr_foid
, os
, bbt
->bt_gen
);
2040 dmu_buf_rele(db
, FTAG
);
2042 (void) ztest_log_setattr(zd
, tx
, lr
);
2046 ztest_object_unlock(zd
, lr
->lr_foid
);
2051 zil_replay_func_t ztest_replay_vector
[TX_MAX_TYPE
] = {
2052 NULL
, /* 0 no such transaction type */
2053 (zil_replay_func_t
)ztest_replay_create
, /* TX_CREATE */
2054 NULL
, /* TX_MKDIR */
2055 NULL
, /* TX_MKXATTR */
2056 NULL
, /* TX_SYMLINK */
2057 (zil_replay_func_t
)ztest_replay_remove
, /* TX_REMOVE */
2058 NULL
, /* TX_RMDIR */
2060 NULL
, /* TX_RENAME */
2061 (zil_replay_func_t
)ztest_replay_write
, /* TX_WRITE */
2062 (zil_replay_func_t
)ztest_replay_truncate
, /* TX_TRUNCATE */
2063 (zil_replay_func_t
)ztest_replay_setattr
, /* TX_SETATTR */
2065 NULL
, /* TX_CREATE_ACL */
2066 NULL
, /* TX_CREATE_ATTR */
2067 NULL
, /* TX_CREATE_ACL_ATTR */
2068 NULL
, /* TX_MKDIR_ACL */
2069 NULL
, /* TX_MKDIR_ATTR */
2070 NULL
, /* TX_MKDIR_ACL_ATTR */
2071 NULL
, /* TX_WRITE2 */
2075 * ZIL get_data callbacks
2077 typedef struct ztest_zgd_private
{
2081 } ztest_zgd_private_t
;
2084 ztest_get_done(zgd_t
*zgd
, int error
)
2086 ztest_zgd_private_t
*zzp
= zgd
->zgd_private
;
2087 ztest_ds_t
*zd
= zzp
->z_zd
;
2088 uint64_t object
= zzp
->z_object
;
2091 dmu_buf_rele(zgd
->zgd_db
, zgd
);
2093 ztest_range_unlock(zd
, zzp
->z_rl
);
2094 ztest_object_unlock(zd
, object
);
2096 if (error
== 0 && zgd
->zgd_bp
)
2097 zil_add_block(zgd
->zgd_zilog
, zgd
->zgd_bp
);
2099 umem_free(zgd
, sizeof (*zgd
));
2100 umem_free(zzp
, sizeof (*zzp
));
2104 ztest_get_data(void *arg
, lr_write_t
*lr
, char *buf
, zio_t
*zio
)
2106 ztest_ds_t
*zd
= arg
;
2107 objset_t
*os
= zd
->zd_os
;
2108 uint64_t object
= lr
->lr_foid
;
2109 uint64_t offset
= lr
->lr_offset
;
2110 uint64_t size
= lr
->lr_length
;
2111 uint64_t txg
= lr
->lr_common
.lrc_txg
;
2113 dmu_object_info_t doi
;
2117 ztest_zgd_private_t
*zgd_private
;
2119 ztest_object_lock(zd
, object
, RL_READER
);
2120 error
= dmu_bonus_hold(os
, object
, FTAG
, &db
);
2122 ztest_object_unlock(zd
, object
);
2126 crtxg
= ztest_bt_bonus(db
)->bt_crtxg
;
2128 if (crtxg
== 0 || crtxg
> txg
) {
2129 dmu_buf_rele(db
, FTAG
);
2130 ztest_object_unlock(zd
, object
);
2134 dmu_object_info_from_db(db
, &doi
);
2135 dmu_buf_rele(db
, FTAG
);
2138 zgd
= umem_zalloc(sizeof (*zgd
), UMEM_NOFAIL
);
2139 zgd
->zgd_zilog
= zd
->zd_zilog
;
2140 zgd_private
= umem_zalloc(sizeof (ztest_zgd_private_t
), UMEM_NOFAIL
);
2141 zgd_private
->z_zd
= zd
;
2142 zgd_private
->z_object
= object
;
2143 zgd
->zgd_private
= zgd_private
;
2145 if (buf
!= NULL
) { /* immediate write */
2146 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2149 error
= dmu_read(os
, object
, offset
, size
, buf
,
2150 DMU_READ_NO_PREFETCH
);
2153 size
= doi
.doi_data_block_size
;
2155 offset
= P2ALIGN(offset
, size
);
2157 ASSERT(offset
< size
);
2161 zgd_private
->z_rl
= ztest_range_lock(zd
, object
, offset
, size
,
2164 error
= dmu_buf_hold(os
, object
, offset
, zgd
, &db
,
2165 DMU_READ_NO_PREFETCH
);
2168 blkptr_t
*bp
= &lr
->lr_blkptr
;
2173 ASSERT(db
->db_offset
== offset
);
2174 ASSERT(db
->db_size
== size
);
2176 error
= dmu_sync(zio
, lr
->lr_common
.lrc_txg
,
2177 ztest_get_done
, zgd
);
2184 ztest_get_done(zgd
, error
);
2190 ztest_lr_alloc(size_t lrsize
, char *name
)
2193 size_t namesize
= name
? strlen(name
) + 1 : 0;
2195 lr
= umem_zalloc(lrsize
+ namesize
, UMEM_NOFAIL
);
2198 bcopy(name
, lr
+ lrsize
, namesize
);
2204 ztest_lr_free(void *lr
, size_t lrsize
, char *name
)
2206 size_t namesize
= name
? strlen(name
) + 1 : 0;
2208 umem_free(lr
, lrsize
+ namesize
);
2212 * Lookup a bunch of objects. Returns the number of objects not found.
2215 ztest_lookup(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2221 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2223 for (i
= 0; i
< count
; i
++, od
++) {
2225 error
= zap_lookup(zd
->zd_os
, od
->od_dir
, od
->od_name
,
2226 sizeof (uint64_t), 1, &od
->od_object
);
2228 ASSERT(error
== ENOENT
);
2229 ASSERT(od
->od_object
== 0);
2233 ztest_block_tag_t
*bbt
;
2234 dmu_object_info_t doi
;
2236 ASSERT(od
->od_object
!= 0);
2237 ASSERT(missing
== 0); /* there should be no gaps */
2239 ztest_object_lock(zd
, od
->od_object
, RL_READER
);
2240 VERIFY3U(0, ==, dmu_bonus_hold(zd
->zd_os
,
2241 od
->od_object
, FTAG
, &db
));
2242 dmu_object_info_from_db(db
, &doi
);
2243 bbt
= ztest_bt_bonus(db
);
2244 ASSERT3U(bbt
->bt_magic
, ==, BT_MAGIC
);
2245 od
->od_type
= doi
.doi_type
;
2246 od
->od_blocksize
= doi
.doi_data_block_size
;
2247 od
->od_gen
= bbt
->bt_gen
;
2248 dmu_buf_rele(db
, FTAG
);
2249 ztest_object_unlock(zd
, od
->od_object
);
2257 ztest_create(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2262 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2264 for (i
= 0; i
< count
; i
++, od
++) {
2271 lr_create_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2273 lr
->lr_doid
= od
->od_dir
;
2274 lr
->lr_foid
= 0; /* 0 to allocate, > 0 to claim */
2275 lr
->lrz_type
= od
->od_crtype
;
2276 lr
->lrz_blocksize
= od
->od_crblocksize
;
2277 lr
->lrz_ibshift
= ztest_random_ibshift();
2278 lr
->lrz_bonustype
= DMU_OT_UINT64_OTHER
;
2279 lr
->lrz_dnodesize
= od
->od_crdnodesize
;
2280 lr
->lr_gen
= od
->od_crgen
;
2281 lr
->lr_crtime
[0] = time(NULL
);
2283 if (ztest_replay_create(zd
, lr
, B_FALSE
) != 0) {
2284 ASSERT(missing
== 0);
2288 od
->od_object
= lr
->lr_foid
;
2289 od
->od_type
= od
->od_crtype
;
2290 od
->od_blocksize
= od
->od_crblocksize
;
2291 od
->od_gen
= od
->od_crgen
;
2292 ASSERT(od
->od_object
!= 0);
2295 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2302 ztest_remove(ztest_ds_t
*zd
, ztest_od_t
*od
, int count
)
2308 ASSERT(mutex_held(&zd
->zd_dirobj_lock
));
2312 for (i
= count
- 1; i
>= 0; i
--, od
--) {
2319 * No object was found.
2321 if (od
->od_object
== 0)
2324 lr_remove_t
*lr
= ztest_lr_alloc(sizeof (*lr
), od
->od_name
);
2326 lr
->lr_doid
= od
->od_dir
;
2328 if ((error
= ztest_replay_remove(zd
, lr
, B_FALSE
)) != 0) {
2329 ASSERT3U(error
, ==, ENOSPC
);
2334 ztest_lr_free(lr
, sizeof (*lr
), od
->od_name
);
2341 ztest_write(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
,
2347 lr
= ztest_lr_alloc(sizeof (*lr
) + size
, NULL
);
2349 lr
->lr_foid
= object
;
2350 lr
->lr_offset
= offset
;
2351 lr
->lr_length
= size
;
2353 BP_ZERO(&lr
->lr_blkptr
);
2355 bcopy(data
, lr
+ 1, size
);
2357 error
= ztest_replay_write(zd
, lr
, B_FALSE
);
2359 ztest_lr_free(lr
, sizeof (*lr
) + size
, NULL
);
2365 ztest_truncate(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2370 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2372 lr
->lr_foid
= object
;
2373 lr
->lr_offset
= offset
;
2374 lr
->lr_length
= size
;
2376 error
= ztest_replay_truncate(zd
, lr
, B_FALSE
);
2378 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2384 ztest_setattr(ztest_ds_t
*zd
, uint64_t object
)
2389 lr
= ztest_lr_alloc(sizeof (*lr
), NULL
);
2391 lr
->lr_foid
= object
;
2395 error
= ztest_replay_setattr(zd
, lr
, B_FALSE
);
2397 ztest_lr_free(lr
, sizeof (*lr
), NULL
);
2403 ztest_prealloc(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
, uint64_t size
)
2405 objset_t
*os
= zd
->zd_os
;
2410 txg_wait_synced(dmu_objset_pool(os
), 0);
2412 ztest_object_lock(zd
, object
, RL_READER
);
2413 rl
= ztest_range_lock(zd
, object
, offset
, size
, RL_WRITER
);
2415 tx
= dmu_tx_create(os
);
2417 dmu_tx_hold_write(tx
, object
, offset
, size
);
2419 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
2422 dmu_prealloc(os
, object
, offset
, size
, tx
);
2424 txg_wait_synced(dmu_objset_pool(os
), txg
);
2426 (void) dmu_free_long_range(os
, object
, offset
, size
);
2429 ztest_range_unlock(zd
, rl
);
2430 ztest_object_unlock(zd
, object
);
2434 ztest_io(ztest_ds_t
*zd
, uint64_t object
, uint64_t offset
)
2437 ztest_block_tag_t wbt
;
2438 dmu_object_info_t doi
;
2439 enum ztest_io_type io_type
;
2443 VERIFY(dmu_object_info(zd
->zd_os
, object
, &doi
) == 0);
2444 blocksize
= doi
.doi_data_block_size
;
2445 data
= umem_alloc(blocksize
, UMEM_NOFAIL
);
2448 * Pick an i/o type at random, biased toward writing block tags.
2450 io_type
= ztest_random(ZTEST_IO_TYPES
);
2451 if (ztest_random(2) == 0)
2452 io_type
= ZTEST_IO_WRITE_TAG
;
2454 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2458 case ZTEST_IO_WRITE_TAG
:
2459 ztest_bt_generate(&wbt
, zd
->zd_os
, object
, doi
.doi_dnodesize
,
2461 (void) ztest_write(zd
, object
, offset
, sizeof (wbt
), &wbt
);
2464 case ZTEST_IO_WRITE_PATTERN
:
2465 (void) memset(data
, 'a' + (object
+ offset
) % 5, blocksize
);
2466 if (ztest_random(2) == 0) {
2468 * Induce fletcher2 collisions to ensure that
2469 * zio_ddt_collision() detects and resolves them
2470 * when using fletcher2-verify for deduplication.
2472 ((uint64_t *)data
)[0] ^= 1ULL << 63;
2473 ((uint64_t *)data
)[4] ^= 1ULL << 63;
2475 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2478 case ZTEST_IO_WRITE_ZEROES
:
2479 bzero(data
, blocksize
);
2480 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2483 case ZTEST_IO_TRUNCATE
:
2484 (void) ztest_truncate(zd
, object
, offset
, blocksize
);
2487 case ZTEST_IO_SETATTR
:
2488 (void) ztest_setattr(zd
, object
);
2493 case ZTEST_IO_REWRITE
:
2494 (void) rw_rdlock(&ztest_name_lock
);
2495 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2496 ZFS_PROP_CHECKSUM
, spa_dedup_checksum(ztest_spa
),
2498 VERIFY(err
== 0 || err
== ENOSPC
);
2499 err
= ztest_dsl_prop_set_uint64(zd
->zd_name
,
2500 ZFS_PROP_COMPRESSION
,
2501 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
),
2503 VERIFY(err
== 0 || err
== ENOSPC
);
2504 (void) rw_unlock(&ztest_name_lock
);
2506 VERIFY0(dmu_read(zd
->zd_os
, object
, offset
, blocksize
, data
,
2507 DMU_READ_NO_PREFETCH
));
2509 (void) ztest_write(zd
, object
, offset
, blocksize
, data
);
2513 (void) rw_unlock(&zd
->zd_zilog_lock
);
2515 umem_free(data
, blocksize
);
2519 * Initialize an object description template.
2522 ztest_od_init(ztest_od_t
*od
, uint64_t id
, char *tag
, uint64_t index
,
2523 dmu_object_type_t type
, uint64_t blocksize
, uint64_t dnodesize
,
2526 od
->od_dir
= ZTEST_DIROBJ
;
2529 od
->od_crtype
= type
;
2530 od
->od_crblocksize
= blocksize
? blocksize
: ztest_random_blocksize();
2531 od
->od_crdnodesize
= dnodesize
? dnodesize
: ztest_random_dnodesize();
2534 od
->od_type
= DMU_OT_NONE
;
2535 od
->od_blocksize
= 0;
2538 (void) snprintf(od
->od_name
, sizeof (od
->od_name
), "%s(%lld)[%llu]",
2539 tag
, (longlong_t
)id
, (u_longlong_t
)index
);
2543 * Lookup or create the objects for a test using the od template.
2544 * If the objects do not all exist, or if 'remove' is specified,
2545 * remove any existing objects and create new ones. Otherwise,
2546 * use the existing objects.
2549 ztest_object_init(ztest_ds_t
*zd
, ztest_od_t
*od
, size_t size
, boolean_t remove
)
2551 int count
= size
/ sizeof (*od
);
2554 mutex_enter(&zd
->zd_dirobj_lock
);
2555 if ((ztest_lookup(zd
, od
, count
) != 0 || remove
) &&
2556 (ztest_remove(zd
, od
, count
) != 0 ||
2557 ztest_create(zd
, od
, count
) != 0))
2560 mutex_exit(&zd
->zd_dirobj_lock
);
2567 ztest_zil_commit(ztest_ds_t
*zd
, uint64_t id
)
2569 zilog_t
*zilog
= zd
->zd_zilog
;
2571 (void) rw_rdlock(&zd
->zd_zilog_lock
);
2573 zil_commit(zilog
, ztest_random(ZTEST_OBJECTS
));
2576 * Remember the committed values in zd, which is in parent/child
2577 * shared memory. If we die, the next iteration of ztest_run()
2578 * will verify that the log really does contain this record.
2580 mutex_enter(&zilog
->zl_lock
);
2581 ASSERT(zd
->zd_shared
!= NULL
);
2582 ASSERT3U(zd
->zd_shared
->zd_seq
, <=, zilog
->zl_commit_lr_seq
);
2583 zd
->zd_shared
->zd_seq
= zilog
->zl_commit_lr_seq
;
2584 mutex_exit(&zilog
->zl_lock
);
2586 (void) rw_unlock(&zd
->zd_zilog_lock
);
2590 * This function is designed to simulate the operations that occur during a
2591 * mount/unmount operation. We hold the dataset across these operations in an
2592 * attempt to expose any implicit assumptions about ZIL management.
2596 ztest_zil_remount(ztest_ds_t
*zd
, uint64_t id
)
2598 objset_t
*os
= zd
->zd_os
;
2601 * We grab the zd_dirobj_lock to ensure that no other thread is
2602 * updating the zil (i.e. adding in-memory log records) and the
2603 * zd_zilog_lock to block any I/O.
2605 mutex_enter(&zd
->zd_dirobj_lock
);
2606 (void) rw_wrlock(&zd
->zd_zilog_lock
);
2608 /* zfsvfs_teardown() */
2609 zil_close(zd
->zd_zilog
);
2611 /* zfsvfs_setup() */
2612 VERIFY(zil_open(os
, ztest_get_data
) == zd
->zd_zilog
);
2613 zil_replay(os
, zd
, ztest_replay_vector
);
2615 (void) rw_unlock(&zd
->zd_zilog_lock
);
2616 mutex_exit(&zd
->zd_dirobj_lock
);
2620 * Verify that we can't destroy an active pool, create an existing pool,
2621 * or create a pool with a bad vdev spec.
2625 ztest_spa_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
2627 ztest_shared_opts_t
*zo
= &ztest_opts
;
2631 if (zo
->zo_mmp_test
)
2635 * Attempt to create using a bad file.
2637 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2638 VERIFY3U(ENOENT
, ==,
2639 spa_create("ztest_bad_file", nvroot
, NULL
, NULL
));
2640 nvlist_free(nvroot
);
2643 * Attempt to create using a bad mirror.
2645 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 2, 1);
2646 VERIFY3U(ENOENT
, ==,
2647 spa_create("ztest_bad_mirror", nvroot
, NULL
, NULL
));
2648 nvlist_free(nvroot
);
2651 * Attempt to create an existing pool. It shouldn't matter
2652 * what's in the nvroot; we should fail with EEXIST.
2654 (void) rw_rdlock(&ztest_name_lock
);
2655 nvroot
= make_vdev_root("/dev/bogus", NULL
, NULL
, 0, 0, 0, 0, 0, 1);
2656 VERIFY3U(EEXIST
, ==, spa_create(zo
->zo_pool
, nvroot
, NULL
, NULL
));
2657 nvlist_free(nvroot
);
2658 VERIFY3U(0, ==, spa_open(zo
->zo_pool
, &spa
, FTAG
));
2659 VERIFY3U(EBUSY
, ==, spa_destroy(zo
->zo_pool
));
2660 spa_close(spa
, FTAG
);
2662 (void) rw_unlock(&ztest_name_lock
);
2666 * Start and then stop the MMP threads to ensure the startup and shutdown code
2667 * works properly. Actual protection and property-related code tested via ZTS.
2671 ztest_mmp_enable_disable(ztest_ds_t
*zd
, uint64_t id
)
2673 ztest_shared_opts_t
*zo
= &ztest_opts
;
2674 spa_t
*spa
= ztest_spa
;
2676 if (zo
->zo_mmp_test
)
2679 spa_config_enter(spa
, SCL_CONFIG
, FTAG
, RW_READER
);
2680 mutex_enter(&spa
->spa_props_lock
);
2682 if (!spa_multihost(spa
)) {
2683 spa
->spa_multihost
= B_TRUE
;
2684 mmp_thread_start(spa
);
2687 mutex_exit(&spa
->spa_props_lock
);
2688 spa_config_exit(spa
, SCL_CONFIG
, FTAG
);
2690 txg_wait_synced(spa_get_dsl(spa
), 0);
2691 mmp_signal_all_threads();
2692 txg_wait_synced(spa_get_dsl(spa
), 0);
2694 spa_config_enter(spa
, SCL_CONFIG
, FTAG
, RW_READER
);
2695 mutex_enter(&spa
->spa_props_lock
);
2697 if (spa_multihost(spa
)) {
2698 mmp_thread_stop(spa
);
2699 spa
->spa_multihost
= B_FALSE
;
2702 mutex_exit(&spa
->spa_props_lock
);
2703 spa_config_exit(spa
, SCL_CONFIG
, FTAG
);
2708 ztest_spa_upgrade(ztest_ds_t
*zd
, uint64_t id
)
2711 uint64_t initial_version
= SPA_VERSION_INITIAL
;
2712 uint64_t version
, newversion
;
2713 nvlist_t
*nvroot
, *props
;
2716 if (ztest_opts
.zo_mmp_test
)
2719 mutex_enter(&ztest_vdev_lock
);
2720 name
= kmem_asprintf("%s_upgrade", ztest_opts
.zo_pool
);
2723 * Clean up from previous runs.
2725 (void) spa_destroy(name
);
2727 nvroot
= make_vdev_root(NULL
, NULL
, name
, ztest_opts
.zo_vdev_size
, 0,
2728 0, ztest_opts
.zo_raidz
, ztest_opts
.zo_mirrors
, 1);
2731 * If we're configuring a RAIDZ device then make sure that the
2732 * the initial version is capable of supporting that feature.
2734 switch (ztest_opts
.zo_raidz_parity
) {
2737 initial_version
= SPA_VERSION_INITIAL
;
2740 initial_version
= SPA_VERSION_RAIDZ2
;
2743 initial_version
= SPA_VERSION_RAIDZ3
;
2748 * Create a pool with a spa version that can be upgraded. Pick
2749 * a value between initial_version and SPA_VERSION_BEFORE_FEATURES.
2752 version
= ztest_random_spa_version(initial_version
);
2753 } while (version
> SPA_VERSION_BEFORE_FEATURES
);
2755 props
= fnvlist_alloc();
2756 fnvlist_add_uint64(props
,
2757 zpool_prop_to_name(ZPOOL_PROP_VERSION
), version
);
2758 VERIFY3S(spa_create(name
, nvroot
, props
, NULL
), ==, 0);
2759 fnvlist_free(nvroot
);
2760 fnvlist_free(props
);
2762 VERIFY3S(spa_open(name
, &spa
, FTAG
), ==, 0);
2763 VERIFY3U(spa_version(spa
), ==, version
);
2764 newversion
= ztest_random_spa_version(version
+ 1);
2766 if (ztest_opts
.zo_verbose
>= 4) {
2767 (void) printf("upgrading spa version from %llu to %llu\n",
2768 (u_longlong_t
)version
, (u_longlong_t
)newversion
);
2771 spa_upgrade(spa
, newversion
);
2772 VERIFY3U(spa_version(spa
), >, version
);
2773 VERIFY3U(spa_version(spa
), ==, fnvlist_lookup_uint64(spa
->spa_config
,
2774 zpool_prop_to_name(ZPOOL_PROP_VERSION
)));
2775 spa_close(spa
, FTAG
);
2778 mutex_exit(&ztest_vdev_lock
);
2782 vdev_lookup_by_path(vdev_t
*vd
, const char *path
)
2787 if (vd
->vdev_path
!= NULL
&& strcmp(path
, vd
->vdev_path
) == 0)
2790 for (c
= 0; c
< vd
->vdev_children
; c
++)
2791 if ((mvd
= vdev_lookup_by_path(vd
->vdev_child
[c
], path
)) !=
2799 * Find the first available hole which can be used as a top-level.
2802 find_vdev_hole(spa_t
*spa
)
2804 vdev_t
*rvd
= spa
->spa_root_vdev
;
2807 ASSERT(spa_config_held(spa
, SCL_VDEV
, RW_READER
) == SCL_VDEV
);
2809 for (c
= 0; c
< rvd
->vdev_children
; c
++) {
2810 vdev_t
*cvd
= rvd
->vdev_child
[c
];
2812 if (cvd
->vdev_ishole
)
2819 * Verify that vdev_add() works as expected.
2823 ztest_vdev_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2825 ztest_shared_t
*zs
= ztest_shared
;
2826 spa_t
*spa
= ztest_spa
;
2832 if (ztest_opts
.zo_mmp_test
)
2835 mutex_enter(&ztest_vdev_lock
);
2836 leaves
= MAX(zs
->zs_mirrors
+ zs
->zs_splits
, 1) * ztest_opts
.zo_raidz
;
2838 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2840 ztest_shared
->zs_vdev_next_leaf
= find_vdev_hole(spa
) * leaves
;
2843 * If we have slogs then remove them 1/4 of the time.
2845 if (spa_has_slogs(spa
) && ztest_random(4) == 0) {
2847 * Grab the guid from the head of the log class rotor.
2849 guid
= spa_log_class(spa
)->mc_rotor
->mg_vd
->vdev_guid
;
2851 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2854 * We have to grab the zs_name_lock as writer to
2855 * prevent a race between removing a slog (dmu_objset_find)
2856 * and destroying a dataset. Removing the slog will
2857 * grab a reference on the dataset which may cause
2858 * dsl_destroy_head() to fail with EBUSY thus
2859 * leaving the dataset in an inconsistent state.
2861 rw_wrlock(&ztest_name_lock
);
2862 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2863 rw_unlock(&ztest_name_lock
);
2865 if (error
&& error
!= EEXIST
)
2866 fatal(0, "spa_vdev_remove() = %d", error
);
2868 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2871 * Make 1/4 of the devices be log devices.
2873 nvroot
= make_vdev_root(NULL
, NULL
, NULL
,
2874 ztest_opts
.zo_vdev_size
, 0,
2875 ztest_random(4) == 0, ztest_opts
.zo_raidz
,
2878 error
= spa_vdev_add(spa
, nvroot
);
2879 nvlist_free(nvroot
);
2881 if (error
== ENOSPC
)
2882 ztest_record_enospc("spa_vdev_add");
2883 else if (error
!= 0)
2884 fatal(0, "spa_vdev_add() = %d", error
);
2887 mutex_exit(&ztest_vdev_lock
);
2891 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
2895 ztest_vdev_aux_add_remove(ztest_ds_t
*zd
, uint64_t id
)
2897 ztest_shared_t
*zs
= ztest_shared
;
2898 spa_t
*spa
= ztest_spa
;
2899 vdev_t
*rvd
= spa
->spa_root_vdev
;
2900 spa_aux_vdev_t
*sav
;
2906 if (ztest_opts
.zo_mmp_test
)
2909 path
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
2911 if (ztest_random(2) == 0) {
2912 sav
= &spa
->spa_spares
;
2913 aux
= ZPOOL_CONFIG_SPARES
;
2915 sav
= &spa
->spa_l2cache
;
2916 aux
= ZPOOL_CONFIG_L2CACHE
;
2919 mutex_enter(&ztest_vdev_lock
);
2921 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
2923 if (sav
->sav_count
!= 0 && ztest_random(4) == 0) {
2925 * Pick a random device to remove.
2927 guid
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)]->vdev_guid
;
2930 * Find an unused device we can add.
2932 zs
->zs_vdev_aux
= 0;
2935 (void) snprintf(path
, MAXPATHLEN
, ztest_aux_template
,
2936 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
, aux
,
2938 for (c
= 0; c
< sav
->sav_count
; c
++)
2939 if (strcmp(sav
->sav_vdevs
[c
]->vdev_path
,
2942 if (c
== sav
->sav_count
&&
2943 vdev_lookup_by_path(rvd
, path
) == NULL
)
2949 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
2955 nvlist_t
*nvroot
= make_vdev_root(NULL
, aux
, NULL
,
2956 (ztest_opts
.zo_vdev_size
* 5) / 4, 0, 0, 0, 0, 1);
2957 error
= spa_vdev_add(spa
, nvroot
);
2959 fatal(0, "spa_vdev_add(%p) = %d", nvroot
, error
);
2960 nvlist_free(nvroot
);
2963 * Remove an existing device. Sometimes, dirty its
2964 * vdev state first to make sure we handle removal
2965 * of devices that have pending state changes.
2967 if (ztest_random(2) == 0)
2968 (void) vdev_online(spa
, guid
, 0, NULL
);
2970 error
= spa_vdev_remove(spa
, guid
, B_FALSE
);
2971 if (error
!= 0 && error
!= EBUSY
)
2972 fatal(0, "spa_vdev_remove(%llu) = %d", guid
, error
);
2975 mutex_exit(&ztest_vdev_lock
);
2977 umem_free(path
, MAXPATHLEN
);
2981 * split a pool if it has mirror tlvdevs
2985 ztest_split_pool(ztest_ds_t
*zd
, uint64_t id
)
2987 ztest_shared_t
*zs
= ztest_shared
;
2988 spa_t
*spa
= ztest_spa
;
2989 vdev_t
*rvd
= spa
->spa_root_vdev
;
2990 nvlist_t
*tree
, **child
, *config
, *split
, **schild
;
2991 uint_t c
, children
, schildren
= 0, lastlogid
= 0;
2994 if (ztest_opts
.zo_mmp_test
)
2997 mutex_enter(&ztest_vdev_lock
);
2999 /* ensure we have a useable config; mirrors of raidz aren't supported */
3000 if (zs
->zs_mirrors
< 3 || ztest_opts
.zo_raidz
> 1) {
3001 mutex_exit(&ztest_vdev_lock
);
3005 /* clean up the old pool, if any */
3006 (void) spa_destroy("splitp");
3008 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
3010 /* generate a config from the existing config */
3011 mutex_enter(&spa
->spa_props_lock
);
3012 VERIFY(nvlist_lookup_nvlist(spa
->spa_config
, ZPOOL_CONFIG_VDEV_TREE
,
3014 mutex_exit(&spa
->spa_props_lock
);
3016 VERIFY(nvlist_lookup_nvlist_array(tree
, ZPOOL_CONFIG_CHILDREN
, &child
,
3019 schild
= malloc(rvd
->vdev_children
* sizeof (nvlist_t
*));
3020 for (c
= 0; c
< children
; c
++) {
3021 vdev_t
*tvd
= rvd
->vdev_child
[c
];
3025 if (tvd
->vdev_islog
|| tvd
->vdev_ops
== &vdev_hole_ops
) {
3026 VERIFY(nvlist_alloc(&schild
[schildren
], NV_UNIQUE_NAME
,
3028 VERIFY(nvlist_add_string(schild
[schildren
],
3029 ZPOOL_CONFIG_TYPE
, VDEV_TYPE_HOLE
) == 0);
3030 VERIFY(nvlist_add_uint64(schild
[schildren
],
3031 ZPOOL_CONFIG_IS_HOLE
, 1) == 0);
3033 lastlogid
= schildren
;
3038 VERIFY(nvlist_lookup_nvlist_array(child
[c
],
3039 ZPOOL_CONFIG_CHILDREN
, &mchild
, &mchildren
) == 0);
3040 VERIFY(nvlist_dup(mchild
[0], &schild
[schildren
++], 0) == 0);
3043 /* OK, create a config that can be used to split */
3044 VERIFY(nvlist_alloc(&split
, NV_UNIQUE_NAME
, 0) == 0);
3045 VERIFY(nvlist_add_string(split
, ZPOOL_CONFIG_TYPE
,
3046 VDEV_TYPE_ROOT
) == 0);
3047 VERIFY(nvlist_add_nvlist_array(split
, ZPOOL_CONFIG_CHILDREN
, schild
,
3048 lastlogid
!= 0 ? lastlogid
: schildren
) == 0);
3050 VERIFY(nvlist_alloc(&config
, NV_UNIQUE_NAME
, 0) == 0);
3051 VERIFY(nvlist_add_nvlist(config
, ZPOOL_CONFIG_VDEV_TREE
, split
) == 0);
3053 for (c
= 0; c
< schildren
; c
++)
3054 nvlist_free(schild
[c
]);
3058 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3060 (void) rw_wrlock(&ztest_name_lock
);
3061 error
= spa_vdev_split_mirror(spa
, "splitp", config
, NULL
, B_FALSE
);
3062 (void) rw_unlock(&ztest_name_lock
);
3064 nvlist_free(config
);
3067 (void) printf("successful split - results:\n");
3068 mutex_enter(&spa_namespace_lock
);
3069 show_pool_stats(spa
);
3070 show_pool_stats(spa_lookup("splitp"));
3071 mutex_exit(&spa_namespace_lock
);
3075 mutex_exit(&ztest_vdev_lock
);
3080 * Verify that we can attach and detach devices.
3084 ztest_vdev_attach_detach(ztest_ds_t
*zd
, uint64_t id
)
3086 ztest_shared_t
*zs
= ztest_shared
;
3087 spa_t
*spa
= ztest_spa
;
3088 spa_aux_vdev_t
*sav
= &spa
->spa_spares
;
3089 vdev_t
*rvd
= spa
->spa_root_vdev
;
3090 vdev_t
*oldvd
, *newvd
, *pvd
;
3094 uint64_t ashift
= ztest_get_ashift();
3095 uint64_t oldguid
, pguid
;
3096 uint64_t oldsize
, newsize
;
3097 char *oldpath
, *newpath
;
3099 int oldvd_has_siblings
= B_FALSE
;
3100 int newvd_is_spare
= B_FALSE
;
3102 int error
, expected_error
;
3104 if (ztest_opts
.zo_mmp_test
)
3107 oldpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
3108 newpath
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
3110 mutex_enter(&ztest_vdev_lock
);
3111 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
3113 spa_config_enter(spa
, SCL_VDEV
, FTAG
, RW_READER
);
3116 * Decide whether to do an attach or a replace.
3118 replacing
= ztest_random(2);
3121 * Pick a random top-level vdev.
3123 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3126 * Pick a random leaf within it.
3128 leaf
= ztest_random(leaves
);
3133 oldvd
= rvd
->vdev_child
[top
];
3134 if (zs
->zs_mirrors
>= 1) {
3135 ASSERT(oldvd
->vdev_ops
== &vdev_mirror_ops
);
3136 ASSERT(oldvd
->vdev_children
>= zs
->zs_mirrors
);
3137 oldvd
= oldvd
->vdev_child
[leaf
/ ztest_opts
.zo_raidz
];
3139 if (ztest_opts
.zo_raidz
> 1) {
3140 ASSERT(oldvd
->vdev_ops
== &vdev_raidz_ops
);
3141 ASSERT(oldvd
->vdev_children
== ztest_opts
.zo_raidz
);
3142 oldvd
= oldvd
->vdev_child
[leaf
% ztest_opts
.zo_raidz
];
3146 * If we're already doing an attach or replace, oldvd may be a
3147 * mirror vdev -- in which case, pick a random child.
3149 while (oldvd
->vdev_children
!= 0) {
3150 oldvd_has_siblings
= B_TRUE
;
3151 ASSERT(oldvd
->vdev_children
>= 2);
3152 oldvd
= oldvd
->vdev_child
[ztest_random(oldvd
->vdev_children
)];
3155 oldguid
= oldvd
->vdev_guid
;
3156 oldsize
= vdev_get_min_asize(oldvd
);
3157 oldvd_is_log
= oldvd
->vdev_top
->vdev_islog
;
3158 (void) strcpy(oldpath
, oldvd
->vdev_path
);
3159 pvd
= oldvd
->vdev_parent
;
3160 pguid
= pvd
->vdev_guid
;
3163 * If oldvd has siblings, then half of the time, detach it.
3165 if (oldvd_has_siblings
&& ztest_random(2) == 0) {
3166 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3167 error
= spa_vdev_detach(spa
, oldguid
, pguid
, B_FALSE
);
3168 if (error
!= 0 && error
!= ENODEV
&& error
!= EBUSY
&&
3170 fatal(0, "detach (%s) returned %d", oldpath
, error
);
3175 * For the new vdev, choose with equal probability between the two
3176 * standard paths (ending in either 'a' or 'b') or a random hot spare.
3178 if (sav
->sav_count
!= 0 && ztest_random(3) == 0) {
3179 newvd
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
3180 newvd_is_spare
= B_TRUE
;
3181 (void) strcpy(newpath
, newvd
->vdev_path
);
3183 (void) snprintf(newpath
, MAXPATHLEN
, ztest_dev_template
,
3184 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
3185 top
* leaves
+ leaf
);
3186 if (ztest_random(2) == 0)
3187 newpath
[strlen(newpath
) - 1] = 'b';
3188 newvd
= vdev_lookup_by_path(rvd
, newpath
);
3192 newsize
= vdev_get_min_asize(newvd
);
3195 * Make newsize a little bigger or smaller than oldsize.
3196 * If it's smaller, the attach should fail.
3197 * If it's larger, and we're doing a replace,
3198 * we should get dynamic LUN growth when we're done.
3200 newsize
= 10 * oldsize
/ (9 + ztest_random(3));
3204 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
3205 * unless it's a replace; in that case any non-replacing parent is OK.
3207 * If newvd is already part of the pool, it should fail with EBUSY.
3209 * If newvd is too small, it should fail with EOVERFLOW.
3211 if (pvd
->vdev_ops
!= &vdev_mirror_ops
&&
3212 pvd
->vdev_ops
!= &vdev_root_ops
&& (!replacing
||
3213 pvd
->vdev_ops
== &vdev_replacing_ops
||
3214 pvd
->vdev_ops
== &vdev_spare_ops
))
3215 expected_error
= ENOTSUP
;
3216 else if (newvd_is_spare
&& (!replacing
|| oldvd_is_log
))
3217 expected_error
= ENOTSUP
;
3218 else if (newvd
== oldvd
)
3219 expected_error
= replacing
? 0 : EBUSY
;
3220 else if (vdev_lookup_by_path(rvd
, newpath
) != NULL
)
3221 expected_error
= EBUSY
;
3222 else if (newsize
< oldsize
)
3223 expected_error
= EOVERFLOW
;
3224 else if (ashift
> oldvd
->vdev_top
->vdev_ashift
)
3225 expected_error
= EDOM
;
3229 spa_config_exit(spa
, SCL_VDEV
, FTAG
);
3232 * Build the nvlist describing newpath.
3234 root
= make_vdev_root(newpath
, NULL
, NULL
, newvd
== NULL
? newsize
: 0,
3235 ashift
, 0, 0, 0, 1);
3237 error
= spa_vdev_attach(spa
, oldguid
, root
, replacing
);
3242 * If our parent was the replacing vdev, but the replace completed,
3243 * then instead of failing with ENOTSUP we may either succeed,
3244 * fail with ENODEV, or fail with EOVERFLOW.
3246 if (expected_error
== ENOTSUP
&&
3247 (error
== 0 || error
== ENODEV
|| error
== EOVERFLOW
))
3248 expected_error
= error
;
3251 * If someone grew the LUN, the replacement may be too small.
3253 if (error
== EOVERFLOW
|| error
== EBUSY
)
3254 expected_error
= error
;
3256 /* XXX workaround 6690467 */
3257 if (error
!= expected_error
&& expected_error
!= EBUSY
) {
3258 fatal(0, "attach (%s %llu, %s %llu, %d) "
3259 "returned %d, expected %d",
3260 oldpath
, oldsize
, newpath
,
3261 newsize
, replacing
, error
, expected_error
);
3264 mutex_exit(&ztest_vdev_lock
);
3266 umem_free(oldpath
, MAXPATHLEN
);
3267 umem_free(newpath
, MAXPATHLEN
);
3271 * Callback function which expands the physical size of the vdev.
3274 grow_vdev(vdev_t
*vd
, void *arg
)
3276 ASSERTV(spa_t
*spa
= vd
->vdev_spa
);
3277 size_t *newsize
= arg
;
3281 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3282 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3284 if ((fd
= open(vd
->vdev_path
, O_RDWR
)) == -1)
3287 fsize
= lseek(fd
, 0, SEEK_END
);
3288 VERIFY(ftruncate(fd
, *newsize
) == 0);
3290 if (ztest_opts
.zo_verbose
>= 6) {
3291 (void) printf("%s grew from %lu to %lu bytes\n",
3292 vd
->vdev_path
, (ulong_t
)fsize
, (ulong_t
)*newsize
);
3299 * Callback function which expands a given vdev by calling vdev_online().
3303 online_vdev(vdev_t
*vd
, void *arg
)
3305 spa_t
*spa
= vd
->vdev_spa
;
3306 vdev_t
*tvd
= vd
->vdev_top
;
3307 uint64_t guid
= vd
->vdev_guid
;
3308 uint64_t generation
= spa
->spa_config_generation
+ 1;
3309 vdev_state_t newstate
= VDEV_STATE_UNKNOWN
;
3312 ASSERT(spa_config_held(spa
, SCL_STATE
, RW_READER
) == SCL_STATE
);
3313 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3315 /* Calling vdev_online will initialize the new metaslabs */
3316 spa_config_exit(spa
, SCL_STATE
, spa
);
3317 error
= vdev_online(spa
, guid
, ZFS_ONLINE_EXPAND
, &newstate
);
3318 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3321 * If vdev_online returned an error or the underlying vdev_open
3322 * failed then we abort the expand. The only way to know that
3323 * vdev_open fails is by checking the returned newstate.
3325 if (error
|| newstate
!= VDEV_STATE_HEALTHY
) {
3326 if (ztest_opts
.zo_verbose
>= 5) {
3327 (void) printf("Unable to expand vdev, state %llu, "
3328 "error %d\n", (u_longlong_t
)newstate
, error
);
3332 ASSERT3U(newstate
, ==, VDEV_STATE_HEALTHY
);
3335 * Since we dropped the lock we need to ensure that we're
3336 * still talking to the original vdev. It's possible this
3337 * vdev may have been detached/replaced while we were
3338 * trying to online it.
3340 if (generation
!= spa
->spa_config_generation
) {
3341 if (ztest_opts
.zo_verbose
>= 5) {
3342 (void) printf("vdev configuration has changed, "
3343 "guid %llu, state %llu, expected gen %llu, "
3346 (u_longlong_t
)tvd
->vdev_state
,
3347 (u_longlong_t
)generation
,
3348 (u_longlong_t
)spa
->spa_config_generation
);
3356 * Traverse the vdev tree calling the supplied function.
3357 * We continue to walk the tree until we either have walked all
3358 * children or we receive a non-NULL return from the callback.
3359 * If a NULL callback is passed, then we just return back the first
3360 * leaf vdev we encounter.
3363 vdev_walk_tree(vdev_t
*vd
, vdev_t
*(*func
)(vdev_t
*, void *), void *arg
)
3367 if (vd
->vdev_ops
->vdev_op_leaf
) {
3371 return (func(vd
, arg
));
3374 for (c
= 0; c
< vd
->vdev_children
; c
++) {
3375 vdev_t
*cvd
= vd
->vdev_child
[c
];
3376 if ((cvd
= vdev_walk_tree(cvd
, func
, arg
)) != NULL
)
3383 * Verify that dynamic LUN growth works as expected.
3387 ztest_vdev_LUN_growth(ztest_ds_t
*zd
, uint64_t id
)
3389 spa_t
*spa
= ztest_spa
;
3391 metaslab_class_t
*mc
;
3392 metaslab_group_t
*mg
;
3393 size_t psize
, newsize
;
3395 uint64_t old_class_space
, new_class_space
, old_ms_count
, new_ms_count
;
3397 mutex_enter(&ztest_vdev_lock
);
3398 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3400 top
= ztest_random_vdev_top(spa
, B_TRUE
);
3402 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3405 old_ms_count
= tvd
->vdev_ms_count
;
3406 old_class_space
= metaslab_class_get_space(mc
);
3409 * Determine the size of the first leaf vdev associated with
3410 * our top-level device.
3412 vd
= vdev_walk_tree(tvd
, NULL
, NULL
);
3413 ASSERT3P(vd
, !=, NULL
);
3414 ASSERT(vd
->vdev_ops
->vdev_op_leaf
);
3416 psize
= vd
->vdev_psize
;
3419 * We only try to expand the vdev if it's healthy, less than 4x its
3420 * original size, and it has a valid psize.
3422 if (tvd
->vdev_state
!= VDEV_STATE_HEALTHY
||
3423 psize
== 0 || psize
>= 4 * ztest_opts
.zo_vdev_size
) {
3424 spa_config_exit(spa
, SCL_STATE
, spa
);
3425 mutex_exit(&ztest_vdev_lock
);
3429 newsize
= psize
+ psize
/ 8;
3430 ASSERT3U(newsize
, >, psize
);
3432 if (ztest_opts
.zo_verbose
>= 6) {
3433 (void) printf("Expanding LUN %s from %lu to %lu\n",
3434 vd
->vdev_path
, (ulong_t
)psize
, (ulong_t
)newsize
);
3438 * Growing the vdev is a two step process:
3439 * 1). expand the physical size (i.e. relabel)
3440 * 2). online the vdev to create the new metaslabs
3442 if (vdev_walk_tree(tvd
, grow_vdev
, &newsize
) != NULL
||
3443 vdev_walk_tree(tvd
, online_vdev
, NULL
) != NULL
||
3444 tvd
->vdev_state
!= VDEV_STATE_HEALTHY
) {
3445 if (ztest_opts
.zo_verbose
>= 5) {
3446 (void) printf("Could not expand LUN because "
3447 "the vdev configuration changed.\n");
3449 spa_config_exit(spa
, SCL_STATE
, spa
);
3450 mutex_exit(&ztest_vdev_lock
);
3454 spa_config_exit(spa
, SCL_STATE
, spa
);
3457 * Expanding the LUN will update the config asynchronously,
3458 * thus we must wait for the async thread to complete any
3459 * pending tasks before proceeding.
3463 mutex_enter(&spa
->spa_async_lock
);
3464 done
= (spa
->spa_async_thread
== NULL
&& !spa
->spa_async_tasks
);
3465 mutex_exit(&spa
->spa_async_lock
);
3468 txg_wait_synced(spa_get_dsl(spa
), 0);
3469 (void) poll(NULL
, 0, 100);
3472 spa_config_enter(spa
, SCL_STATE
, spa
, RW_READER
);
3474 tvd
= spa
->spa_root_vdev
->vdev_child
[top
];
3475 new_ms_count
= tvd
->vdev_ms_count
;
3476 new_class_space
= metaslab_class_get_space(mc
);
3478 if (tvd
->vdev_mg
!= mg
|| mg
->mg_class
!= mc
) {
3479 if (ztest_opts
.zo_verbose
>= 5) {
3480 (void) printf("Could not verify LUN expansion due to "
3481 "intervening vdev offline or remove.\n");
3483 spa_config_exit(spa
, SCL_STATE
, spa
);
3484 mutex_exit(&ztest_vdev_lock
);
3489 * Make sure we were able to grow the vdev.
3491 if (new_ms_count
<= old_ms_count
)
3492 fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
3493 old_ms_count
, new_ms_count
);
3496 * Make sure we were able to grow the pool.
3498 if (new_class_space
<= old_class_space
)
3499 fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
3500 old_class_space
, new_class_space
);
3502 if (ztest_opts
.zo_verbose
>= 5) {
3503 char oldnumbuf
[6], newnumbuf
[6];
3505 nicenum(old_class_space
, oldnumbuf
);
3506 nicenum(new_class_space
, newnumbuf
);
3507 (void) printf("%s grew from %s to %s\n",
3508 spa
->spa_name
, oldnumbuf
, newnumbuf
);
3511 spa_config_exit(spa
, SCL_STATE
, spa
);
3512 mutex_exit(&ztest_vdev_lock
);
3516 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
3520 ztest_objset_create_cb(objset_t
*os
, void *arg
, cred_t
*cr
, dmu_tx_t
*tx
)
3523 * Create the objects common to all ztest datasets.
3525 VERIFY(zap_create_claim(os
, ZTEST_DIROBJ
,
3526 DMU_OT_ZAP_OTHER
, DMU_OT_NONE
, 0, tx
) == 0);
3530 ztest_dataset_create(char *dsname
)
3532 uint64_t zilset
= ztest_random(100);
3533 int err
= dmu_objset_create(dsname
, DMU_OST_OTHER
, 0,
3534 ztest_objset_create_cb
, NULL
);
3536 if (err
|| zilset
< 80)
3539 if (ztest_opts
.zo_verbose
>= 5)
3540 (void) printf("Setting dataset %s to sync always\n", dsname
);
3541 return (ztest_dsl_prop_set_uint64(dsname
, ZFS_PROP_SYNC
,
3542 ZFS_SYNC_ALWAYS
, B_FALSE
));
3547 ztest_objset_destroy_cb(const char *name
, void *arg
)
3550 dmu_object_info_t doi
;
3554 * Verify that the dataset contains a directory object.
3556 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
, FTAG
, &os
));
3557 error
= dmu_object_info(os
, ZTEST_DIROBJ
, &doi
);
3558 if (error
!= ENOENT
) {
3559 /* We could have crashed in the middle of destroying it */
3561 ASSERT3U(doi
.doi_type
, ==, DMU_OT_ZAP_OTHER
);
3562 ASSERT3S(doi
.doi_physical_blocks_512
, >=, 0);
3564 dmu_objset_disown(os
, FTAG
);
3567 * Destroy the dataset.
3569 if (strchr(name
, '@') != NULL
) {
3570 VERIFY0(dsl_destroy_snapshot(name
, B_TRUE
));
3572 error
= dsl_destroy_head(name
);
3573 /* There could be a hold on this dataset */
3581 ztest_snapshot_create(char *osname
, uint64_t id
)
3583 char snapname
[ZFS_MAX_DATASET_NAME_LEN
];
3586 (void) snprintf(snapname
, sizeof (snapname
), "%llu", (u_longlong_t
)id
);
3588 error
= dmu_objset_snapshot_one(osname
, snapname
);
3589 if (error
== ENOSPC
) {
3590 ztest_record_enospc(FTAG
);
3593 if (error
!= 0 && error
!= EEXIST
) {
3594 fatal(0, "ztest_snapshot_create(%s@%s) = %d", osname
,
3601 ztest_snapshot_destroy(char *osname
, uint64_t id
)
3603 char snapname
[ZFS_MAX_DATASET_NAME_LEN
];
3606 (void) snprintf(snapname
, sizeof (snapname
), "%s@%llu", osname
,
3609 error
= dsl_destroy_snapshot(snapname
, B_FALSE
);
3610 if (error
!= 0 && error
!= ENOENT
)
3611 fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname
, error
);
3617 ztest_dmu_objset_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3623 char name
[ZFS_MAX_DATASET_NAME_LEN
];
3627 zdtmp
= umem_alloc(sizeof (ztest_ds_t
), UMEM_NOFAIL
);
3629 (void) rw_rdlock(&ztest_name_lock
);
3631 (void) snprintf(name
, sizeof (name
), "%s/temp_%llu",
3632 ztest_opts
.zo_pool
, (u_longlong_t
)id
);
3635 * If this dataset exists from a previous run, process its replay log
3636 * half of the time. If we don't replay it, then dsl_destroy_head()
3637 * (invoked from ztest_objset_destroy_cb()) should just throw it away.
3639 if (ztest_random(2) == 0 &&
3640 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
) == 0) {
3641 ztest_zd_init(zdtmp
, NULL
, os
);
3642 zil_replay(os
, zdtmp
, ztest_replay_vector
);
3643 ztest_zd_fini(zdtmp
);
3644 dmu_objset_disown(os
, FTAG
);
3648 * There may be an old instance of the dataset we're about to
3649 * create lying around from a previous run. If so, destroy it
3650 * and all of its snapshots.
3652 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
3653 DS_FIND_CHILDREN
| DS_FIND_SNAPSHOTS
);
3656 * Verify that the destroyed dataset is no longer in the namespace.
3658 VERIFY3U(ENOENT
, ==, dmu_objset_own(name
, DMU_OST_OTHER
, B_TRUE
,
3662 * Verify that we can create a new dataset.
3664 error
= ztest_dataset_create(name
);
3666 if (error
== ENOSPC
) {
3667 ztest_record_enospc(FTAG
);
3670 fatal(0, "dmu_objset_create(%s) = %d", name
, error
);
3673 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os
));
3675 ztest_zd_init(zdtmp
, NULL
, os
);
3678 * Open the intent log for it.
3680 zilog
= zil_open(os
, ztest_get_data
);
3683 * Put some objects in there, do a little I/O to them,
3684 * and randomly take a couple of snapshots along the way.
3686 iters
= ztest_random(5);
3687 for (i
= 0; i
< iters
; i
++) {
3688 ztest_dmu_object_alloc_free(zdtmp
, id
);
3689 if (ztest_random(iters
) == 0)
3690 (void) ztest_snapshot_create(name
, i
);
3694 * Verify that we cannot create an existing dataset.
3696 VERIFY3U(EEXIST
, ==,
3697 dmu_objset_create(name
, DMU_OST_OTHER
, 0, NULL
, NULL
));
3700 * Verify that we can hold an objset that is also owned.
3702 VERIFY3U(0, ==, dmu_objset_hold(name
, FTAG
, &os2
));
3703 dmu_objset_rele(os2
, FTAG
);
3706 * Verify that we cannot own an objset that is already owned.
3709 dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, FTAG
, &os2
));
3712 dmu_objset_disown(os
, FTAG
);
3713 ztest_zd_fini(zdtmp
);
3715 (void) rw_unlock(&ztest_name_lock
);
3717 umem_free(zdtmp
, sizeof (ztest_ds_t
));
3721 * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
3724 ztest_dmu_snapshot_create_destroy(ztest_ds_t
*zd
, uint64_t id
)
3726 (void) rw_rdlock(&ztest_name_lock
);
3727 (void) ztest_snapshot_destroy(zd
->zd_name
, id
);
3728 (void) ztest_snapshot_create(zd
->zd_name
, id
);
3729 (void) rw_unlock(&ztest_name_lock
);
3733 * Cleanup non-standard snapshots and clones.
3736 ztest_dsl_dataset_cleanup(char *osname
, uint64_t id
)
3745 snap1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3746 clone1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3747 snap2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3748 clone2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3749 snap3name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3751 (void) snprintf(snap1name
, ZFS_MAX_DATASET_NAME_LEN
,
3752 "%s@s1_%llu", osname
, (u_longlong_t
)id
);
3753 (void) snprintf(clone1name
, ZFS_MAX_DATASET_NAME_LEN
,
3754 "%s/c1_%llu", osname
, (u_longlong_t
)id
);
3755 (void) snprintf(snap2name
, ZFS_MAX_DATASET_NAME_LEN
,
3756 "%s@s2_%llu", clone1name
, (u_longlong_t
)id
);
3757 (void) snprintf(clone2name
, ZFS_MAX_DATASET_NAME_LEN
,
3758 "%s/c2_%llu", osname
, (u_longlong_t
)id
);
3759 (void) snprintf(snap3name
, ZFS_MAX_DATASET_NAME_LEN
,
3760 "%s@s3_%llu", clone1name
, (u_longlong_t
)id
);
3762 error
= dsl_destroy_head(clone2name
);
3763 if (error
&& error
!= ENOENT
)
3764 fatal(0, "dsl_destroy_head(%s) = %d", clone2name
, error
);
3765 error
= dsl_destroy_snapshot(snap3name
, B_FALSE
);
3766 if (error
&& error
!= ENOENT
)
3767 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap3name
, error
);
3768 error
= dsl_destroy_snapshot(snap2name
, B_FALSE
);
3769 if (error
&& error
!= ENOENT
)
3770 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap2name
, error
);
3771 error
= dsl_destroy_head(clone1name
);
3772 if (error
&& error
!= ENOENT
)
3773 fatal(0, "dsl_destroy_head(%s) = %d", clone1name
, error
);
3774 error
= dsl_destroy_snapshot(snap1name
, B_FALSE
);
3775 if (error
&& error
!= ENOENT
)
3776 fatal(0, "dsl_destroy_snapshot(%s) = %d", snap1name
, error
);
3778 umem_free(snap1name
, ZFS_MAX_DATASET_NAME_LEN
);
3779 umem_free(clone1name
, ZFS_MAX_DATASET_NAME_LEN
);
3780 umem_free(snap2name
, ZFS_MAX_DATASET_NAME_LEN
);
3781 umem_free(clone2name
, ZFS_MAX_DATASET_NAME_LEN
);
3782 umem_free(snap3name
, ZFS_MAX_DATASET_NAME_LEN
);
3786 * Verify dsl_dataset_promote handles EBUSY
3789 ztest_dsl_dataset_promote_busy(ztest_ds_t
*zd
, uint64_t id
)
3797 char *osname
= zd
->zd_name
;
3800 snap1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3801 clone1name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3802 snap2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3803 clone2name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3804 snap3name
= umem_alloc(ZFS_MAX_DATASET_NAME_LEN
, UMEM_NOFAIL
);
3806 (void) rw_rdlock(&ztest_name_lock
);
3808 ztest_dsl_dataset_cleanup(osname
, id
);
3810 (void) snprintf(snap1name
, ZFS_MAX_DATASET_NAME_LEN
,
3811 "%s@s1_%llu", osname
, (u_longlong_t
)id
);
3812 (void) snprintf(clone1name
, ZFS_MAX_DATASET_NAME_LEN
,
3813 "%s/c1_%llu", osname
, (u_longlong_t
)id
);
3814 (void) snprintf(snap2name
, ZFS_MAX_DATASET_NAME_LEN
,
3815 "%s@s2_%llu", clone1name
, (u_longlong_t
)id
);
3816 (void) snprintf(clone2name
, ZFS_MAX_DATASET_NAME_LEN
,
3817 "%s/c2_%llu", osname
, (u_longlong_t
)id
);
3818 (void) snprintf(snap3name
, ZFS_MAX_DATASET_NAME_LEN
,
3819 "%s@s3_%llu", clone1name
, (u_longlong_t
)id
);
3821 error
= dmu_objset_snapshot_one(osname
, strchr(snap1name
, '@') + 1);
3822 if (error
&& error
!= EEXIST
) {
3823 if (error
== ENOSPC
) {
3824 ztest_record_enospc(FTAG
);
3827 fatal(0, "dmu_take_snapshot(%s) = %d", snap1name
, error
);
3830 error
= dmu_objset_clone(clone1name
, snap1name
);
3832 if (error
== ENOSPC
) {
3833 ztest_record_enospc(FTAG
);
3836 fatal(0, "dmu_objset_create(%s) = %d", clone1name
, error
);
3839 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap2name
, '@') + 1);
3840 if (error
&& error
!= EEXIST
) {
3841 if (error
== ENOSPC
) {
3842 ztest_record_enospc(FTAG
);
3845 fatal(0, "dmu_open_snapshot(%s) = %d", snap2name
, error
);
3848 error
= dmu_objset_snapshot_one(clone1name
, strchr(snap3name
, '@') + 1);
3849 if (error
&& error
!= EEXIST
) {
3850 if (error
== ENOSPC
) {
3851 ztest_record_enospc(FTAG
);
3854 fatal(0, "dmu_open_snapshot(%s) = %d", snap3name
, error
);
3857 error
= dmu_objset_clone(clone2name
, snap3name
);
3859 if (error
== ENOSPC
) {
3860 ztest_record_enospc(FTAG
);
3863 fatal(0, "dmu_objset_create(%s) = %d", clone2name
, error
);
3866 error
= dmu_objset_own(snap2name
, DMU_OST_ANY
, B_TRUE
, FTAG
, &os
);
3868 fatal(0, "dmu_objset_own(%s) = %d", snap2name
, error
);
3869 error
= dsl_dataset_promote(clone2name
, NULL
);
3870 if (error
== ENOSPC
) {
3871 dmu_objset_disown(os
, FTAG
);
3872 ztest_record_enospc(FTAG
);
3876 fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name
,
3878 dmu_objset_disown(os
, FTAG
);
3881 ztest_dsl_dataset_cleanup(osname
, id
);
3883 (void) rw_unlock(&ztest_name_lock
);
3885 umem_free(snap1name
, ZFS_MAX_DATASET_NAME_LEN
);
3886 umem_free(clone1name
, ZFS_MAX_DATASET_NAME_LEN
);
3887 umem_free(snap2name
, ZFS_MAX_DATASET_NAME_LEN
);
3888 umem_free(clone2name
, ZFS_MAX_DATASET_NAME_LEN
);
3889 umem_free(snap3name
, ZFS_MAX_DATASET_NAME_LEN
);
3892 #undef OD_ARRAY_SIZE
3893 #define OD_ARRAY_SIZE 4
3896 * Verify that dmu_object_{alloc,free} work as expected.
3899 ztest_dmu_object_alloc_free(ztest_ds_t
*zd
, uint64_t id
)
3906 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3907 od
= umem_alloc(size
, UMEM_NOFAIL
);
3908 batchsize
= OD_ARRAY_SIZE
;
3910 for (b
= 0; b
< batchsize
; b
++)
3911 ztest_od_init(od
+ b
, id
, FTAG
, b
, DMU_OT_UINT64_OTHER
,
3915 * Destroy the previous batch of objects, create a new batch,
3916 * and do some I/O on the new objects.
3918 if (ztest_object_init(zd
, od
, size
, B_TRUE
) != 0)
3921 while (ztest_random(4 * batchsize
) != 0)
3922 ztest_io(zd
, od
[ztest_random(batchsize
)].od_object
,
3923 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
3925 umem_free(od
, size
);
3928 #undef OD_ARRAY_SIZE
3929 #define OD_ARRAY_SIZE 2
3932 * Verify that dmu_{read,write} work as expected.
3935 ztest_dmu_read_write(ztest_ds_t
*zd
, uint64_t id
)
3940 objset_t
*os
= zd
->zd_os
;
3941 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
3942 od
= umem_alloc(size
, UMEM_NOFAIL
);
3944 int i
, freeit
, error
;
3946 bufwad_t
*packbuf
, *bigbuf
, *pack
, *bigH
, *bigT
;
3947 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
3948 uint64_t chunksize
= (1000 + ztest_random(1000)) * sizeof (uint64_t);
3949 uint64_t regions
= 997;
3950 uint64_t stride
= 123456789ULL;
3951 uint64_t width
= 40;
3952 int free_percent
= 5;
3955 * This test uses two objects, packobj and bigobj, that are always
3956 * updated together (i.e. in the same tx) so that their contents are
3957 * in sync and can be compared. Their contents relate to each other
3958 * in a simple way: packobj is a dense array of 'bufwad' structures,
3959 * while bigobj is a sparse array of the same bufwads. Specifically,
3960 * for any index n, there are three bufwads that should be identical:
3962 * packobj, at offset n * sizeof (bufwad_t)
3963 * bigobj, at the head of the nth chunk
3964 * bigobj, at the tail of the nth chunk
3966 * The chunk size is arbitrary. It doesn't have to be a power of two,
3967 * and it doesn't have any relation to the object blocksize.
3968 * The only requirement is that it can hold at least two bufwads.
3970 * Normally, we write the bufwad to each of these locations.
3971 * However, free_percent of the time we instead write zeroes to
3972 * packobj and perform a dmu_free_range() on bigobj. By comparing
3973 * bigobj to packobj, we can verify that the DMU is correctly
3974 * tracking which parts of an object are allocated and free,
3975 * and that the contents of the allocated blocks are correct.
3979 * Read the directory info. If it's the first time, set things up.
3981 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, chunksize
);
3982 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, 0,
3985 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
3986 umem_free(od
, size
);
3990 bigobj
= od
[0].od_object
;
3991 packobj
= od
[1].od_object
;
3992 chunksize
= od
[0].od_gen
;
3993 ASSERT(chunksize
== od
[1].od_gen
);
3996 * Prefetch a random chunk of the big object.
3997 * Our aim here is to get some async reads in flight
3998 * for blocks that we may free below; the DMU should
3999 * handle this race correctly.
4001 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4002 s
= 1 + ztest_random(2 * width
- 1);
4003 dmu_prefetch(os
, bigobj
, 0, n
* chunksize
, s
* chunksize
,
4004 ZIO_PRIORITY_SYNC_READ
);
4007 * Pick a random index and compute the offsets into packobj and bigobj.
4009 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4010 s
= 1 + ztest_random(width
- 1);
4012 packoff
= n
* sizeof (bufwad_t
);
4013 packsize
= s
* sizeof (bufwad_t
);
4015 bigoff
= n
* chunksize
;
4016 bigsize
= s
* chunksize
;
4018 packbuf
= umem_alloc(packsize
, UMEM_NOFAIL
);
4019 bigbuf
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4022 * free_percent of the time, free a range of bigobj rather than
4025 freeit
= (ztest_random(100) < free_percent
);
4028 * Read the current contents of our objects.
4030 error
= dmu_read(os
, packobj
, packoff
, packsize
, packbuf
,
4033 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
, bigbuf
,
4038 * Get a tx for the mods to both packobj and bigobj.
4040 tx
= dmu_tx_create(os
);
4042 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4045 dmu_tx_hold_free(tx
, bigobj
, bigoff
, bigsize
);
4047 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4049 /* This accounts for setting the checksum/compression. */
4050 dmu_tx_hold_bonus(tx
, bigobj
);
4052 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4054 umem_free(packbuf
, packsize
);
4055 umem_free(bigbuf
, bigsize
);
4056 umem_free(od
, size
);
4060 enum zio_checksum cksum
;
4062 cksum
= (enum zio_checksum
)
4063 ztest_random_dsl_prop(ZFS_PROP_CHECKSUM
);
4064 } while (cksum
>= ZIO_CHECKSUM_LEGACY_FUNCTIONS
);
4065 dmu_object_set_checksum(os
, bigobj
, cksum
, tx
);
4067 enum zio_compress comp
;
4069 comp
= (enum zio_compress
)
4070 ztest_random_dsl_prop(ZFS_PROP_COMPRESSION
);
4071 } while (comp
>= ZIO_COMPRESS_LEGACY_FUNCTIONS
);
4072 dmu_object_set_compress(os
, bigobj
, comp
, tx
);
4075 * For each index from n to n + s, verify that the existing bufwad
4076 * in packobj matches the bufwads at the head and tail of the
4077 * corresponding chunk in bigobj. Then update all three bufwads
4078 * with the new values we want to write out.
4080 for (i
= 0; i
< s
; i
++) {
4082 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
4084 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
4086 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
4088 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
4089 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
4091 if (pack
->bw_txg
> txg
)
4092 fatal(0, "future leak: got %llx, open txg is %llx",
4095 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
4096 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4097 pack
->bw_index
, n
, i
);
4099 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
4100 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
4102 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
4103 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
4106 bzero(pack
, sizeof (bufwad_t
));
4108 pack
->bw_index
= n
+ i
;
4110 pack
->bw_data
= 1 + ztest_random(-2ULL);
4117 * We've verified all the old bufwads, and made new ones.
4118 * Now write them out.
4120 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4123 if (ztest_opts
.zo_verbose
>= 7) {
4124 (void) printf("freeing offset %llx size %llx"
4126 (u_longlong_t
)bigoff
,
4127 (u_longlong_t
)bigsize
,
4130 VERIFY(0 == dmu_free_range(os
, bigobj
, bigoff
, bigsize
, tx
));
4132 if (ztest_opts
.zo_verbose
>= 7) {
4133 (void) printf("writing offset %llx size %llx"
4135 (u_longlong_t
)bigoff
,
4136 (u_longlong_t
)bigsize
,
4139 dmu_write(os
, bigobj
, bigoff
, bigsize
, bigbuf
, tx
);
4145 * Sanity check the stuff we just wrote.
4148 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4149 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4151 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4152 packsize
, packcheck
, DMU_READ_PREFETCH
));
4153 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4154 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4156 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4157 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4159 umem_free(packcheck
, packsize
);
4160 umem_free(bigcheck
, bigsize
);
4163 umem_free(packbuf
, packsize
);
4164 umem_free(bigbuf
, bigsize
);
4165 umem_free(od
, size
);
4169 compare_and_update_pbbufs(uint64_t s
, bufwad_t
*packbuf
, bufwad_t
*bigbuf
,
4170 uint64_t bigsize
, uint64_t n
, uint64_t chunksize
, uint64_t txg
)
4178 * For each index from n to n + s, verify that the existing bufwad
4179 * in packobj matches the bufwads at the head and tail of the
4180 * corresponding chunk in bigobj. Then update all three bufwads
4181 * with the new values we want to write out.
4183 for (i
= 0; i
< s
; i
++) {
4185 pack
= (bufwad_t
*)((char *)packbuf
+ i
* sizeof (bufwad_t
));
4187 bigH
= (bufwad_t
*)((char *)bigbuf
+ i
* chunksize
);
4189 bigT
= (bufwad_t
*)((char *)bigH
+ chunksize
) - 1;
4191 ASSERT((uintptr_t)bigH
- (uintptr_t)bigbuf
< bigsize
);
4192 ASSERT((uintptr_t)bigT
- (uintptr_t)bigbuf
< bigsize
);
4194 if (pack
->bw_txg
> txg
)
4195 fatal(0, "future leak: got %llx, open txg is %llx",
4198 if (pack
->bw_data
!= 0 && pack
->bw_index
!= n
+ i
)
4199 fatal(0, "wrong index: got %llx, wanted %llx+%llx",
4200 pack
->bw_index
, n
, i
);
4202 if (bcmp(pack
, bigH
, sizeof (bufwad_t
)) != 0)
4203 fatal(0, "pack/bigH mismatch in %p/%p", pack
, bigH
);
4205 if (bcmp(pack
, bigT
, sizeof (bufwad_t
)) != 0)
4206 fatal(0, "pack/bigT mismatch in %p/%p", pack
, bigT
);
4208 pack
->bw_index
= n
+ i
;
4210 pack
->bw_data
= 1 + ztest_random(-2ULL);
4217 #undef OD_ARRAY_SIZE
4218 #define OD_ARRAY_SIZE 2
4221 ztest_dmu_read_write_zcopy(ztest_ds_t
*zd
, uint64_t id
)
4223 objset_t
*os
= zd
->zd_os
;
4230 bufwad_t
*packbuf
, *bigbuf
;
4231 uint64_t packobj
, packoff
, packsize
, bigobj
, bigoff
, bigsize
;
4232 uint64_t blocksize
= ztest_random_blocksize();
4233 uint64_t chunksize
= blocksize
;
4234 uint64_t regions
= 997;
4235 uint64_t stride
= 123456789ULL;
4237 dmu_buf_t
*bonus_db
;
4238 arc_buf_t
**bigbuf_arcbufs
;
4239 dmu_object_info_t doi
;
4241 size
= sizeof (ztest_od_t
) * OD_ARRAY_SIZE
;
4242 od
= umem_alloc(size
, UMEM_NOFAIL
);
4245 * This test uses two objects, packobj and bigobj, that are always
4246 * updated together (i.e. in the same tx) so that their contents are
4247 * in sync and can be compared. Their contents relate to each other
4248 * in a simple way: packobj is a dense array of 'bufwad' structures,
4249 * while bigobj is a sparse array of the same bufwads. Specifically,
4250 * for any index n, there are three bufwads that should be identical:
4252 * packobj, at offset n * sizeof (bufwad_t)
4253 * bigobj, at the head of the nth chunk
4254 * bigobj, at the tail of the nth chunk
4256 * The chunk size is set equal to bigobj block size so that
4257 * dmu_assign_arcbuf() can be tested for object updates.
4261 * Read the directory info. If it's the first time, set things up.
4263 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
4264 ztest_od_init(od
+ 1, id
, FTAG
, 1, DMU_OT_UINT64_OTHER
, 0, 0,
4268 if (ztest_object_init(zd
, od
, size
, B_FALSE
) != 0) {
4269 umem_free(od
, size
);
4273 bigobj
= od
[0].od_object
;
4274 packobj
= od
[1].od_object
;
4275 blocksize
= od
[0].od_blocksize
;
4276 chunksize
= blocksize
;
4277 ASSERT(chunksize
== od
[1].od_gen
);
4279 VERIFY(dmu_object_info(os
, bigobj
, &doi
) == 0);
4280 VERIFY(ISP2(doi
.doi_data_block_size
));
4281 VERIFY(chunksize
== doi
.doi_data_block_size
);
4282 VERIFY(chunksize
>= 2 * sizeof (bufwad_t
));
4285 * Pick a random index and compute the offsets into packobj and bigobj.
4287 n
= ztest_random(regions
) * stride
+ ztest_random(width
);
4288 s
= 1 + ztest_random(width
- 1);
4290 packoff
= n
* sizeof (bufwad_t
);
4291 packsize
= s
* sizeof (bufwad_t
);
4293 bigoff
= n
* chunksize
;
4294 bigsize
= s
* chunksize
;
4296 packbuf
= umem_zalloc(packsize
, UMEM_NOFAIL
);
4297 bigbuf
= umem_zalloc(bigsize
, UMEM_NOFAIL
);
4299 VERIFY3U(0, ==, dmu_bonus_hold(os
, bigobj
, FTAG
, &bonus_db
));
4301 bigbuf_arcbufs
= umem_zalloc(2 * s
* sizeof (arc_buf_t
*), UMEM_NOFAIL
);
4304 * Iteration 0 test zcopy for DB_UNCACHED dbufs.
4305 * Iteration 1 test zcopy to already referenced dbufs.
4306 * Iteration 2 test zcopy to dirty dbuf in the same txg.
4307 * Iteration 3 test zcopy to dbuf dirty in previous txg.
4308 * Iteration 4 test zcopy when dbuf is no longer dirty.
4309 * Iteration 5 test zcopy when it can't be done.
4310 * Iteration 6 one more zcopy write.
4312 for (i
= 0; i
< 7; i
++) {
4317 * In iteration 5 (i == 5) use arcbufs
4318 * that don't match bigobj blksz to test
4319 * dmu_assign_arcbuf() when it can't directly
4320 * assign an arcbuf to a dbuf.
4322 for (j
= 0; j
< s
; j
++) {
4323 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4325 dmu_request_arcbuf(bonus_db
, chunksize
);
4327 bigbuf_arcbufs
[2 * j
] =
4328 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4329 bigbuf_arcbufs
[2 * j
+ 1] =
4330 dmu_request_arcbuf(bonus_db
, chunksize
/ 2);
4335 * Get a tx for the mods to both packobj and bigobj.
4337 tx
= dmu_tx_create(os
);
4339 dmu_tx_hold_write(tx
, packobj
, packoff
, packsize
);
4340 dmu_tx_hold_write(tx
, bigobj
, bigoff
, bigsize
);
4342 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4344 umem_free(packbuf
, packsize
);
4345 umem_free(bigbuf
, bigsize
);
4346 for (j
= 0; j
< s
; j
++) {
4348 chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4349 dmu_return_arcbuf(bigbuf_arcbufs
[j
]);
4352 bigbuf_arcbufs
[2 * j
]);
4354 bigbuf_arcbufs
[2 * j
+ 1]);
4357 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4358 umem_free(od
, size
);
4359 dmu_buf_rele(bonus_db
, FTAG
);
4364 * 50% of the time don't read objects in the 1st iteration to
4365 * test dmu_assign_arcbuf() for the case when there're no
4366 * existing dbufs for the specified offsets.
4368 if (i
!= 0 || ztest_random(2) != 0) {
4369 error
= dmu_read(os
, packobj
, packoff
,
4370 packsize
, packbuf
, DMU_READ_PREFETCH
);
4372 error
= dmu_read(os
, bigobj
, bigoff
, bigsize
,
4373 bigbuf
, DMU_READ_PREFETCH
);
4376 compare_and_update_pbbufs(s
, packbuf
, bigbuf
, bigsize
,
4380 * We've verified all the old bufwads, and made new ones.
4381 * Now write them out.
4383 dmu_write(os
, packobj
, packoff
, packsize
, packbuf
, tx
);
4384 if (ztest_opts
.zo_verbose
>= 7) {
4385 (void) printf("writing offset %llx size %llx"
4387 (u_longlong_t
)bigoff
,
4388 (u_longlong_t
)bigsize
,
4391 for (off
= bigoff
, j
= 0; j
< s
; j
++, off
+= chunksize
) {
4393 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4394 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4395 bigbuf_arcbufs
[j
]->b_data
, chunksize
);
4397 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
),
4398 bigbuf_arcbufs
[2 * j
]->b_data
,
4400 bcopy((caddr_t
)bigbuf
+ (off
- bigoff
) +
4402 bigbuf_arcbufs
[2 * j
+ 1]->b_data
,
4407 VERIFY(dmu_buf_hold(os
, bigobj
, off
,
4408 FTAG
, &dbt
, DMU_READ_NO_PREFETCH
) == 0);
4410 if (i
!= 5 || chunksize
< (SPA_MINBLOCKSIZE
* 2)) {
4411 dmu_assign_arcbuf(bonus_db
, off
,
4412 bigbuf_arcbufs
[j
], tx
);
4414 dmu_assign_arcbuf(bonus_db
, off
,
4415 bigbuf_arcbufs
[2 * j
], tx
);
4416 dmu_assign_arcbuf(bonus_db
,
4417 off
+ chunksize
/ 2,
4418 bigbuf_arcbufs
[2 * j
+ 1], tx
);
4421 dmu_buf_rele(dbt
, FTAG
);
4427 * Sanity check the stuff we just wrote.
4430 void *packcheck
= umem_alloc(packsize
, UMEM_NOFAIL
);
4431 void *bigcheck
= umem_alloc(bigsize
, UMEM_NOFAIL
);
4433 VERIFY(0 == dmu_read(os
, packobj
, packoff
,
4434 packsize
, packcheck
, DMU_READ_PREFETCH
));
4435 VERIFY(0 == dmu_read(os
, bigobj
, bigoff
,
4436 bigsize
, bigcheck
, DMU_READ_PREFETCH
));
4438 ASSERT(bcmp(packbuf
, packcheck
, packsize
) == 0);
4439 ASSERT(bcmp(bigbuf
, bigcheck
, bigsize
) == 0);
4441 umem_free(packcheck
, packsize
);
4442 umem_free(bigcheck
, bigsize
);
4445 txg_wait_open(dmu_objset_pool(os
), 0);
4446 } else if (i
== 3) {
4447 txg_wait_synced(dmu_objset_pool(os
), 0);
4451 dmu_buf_rele(bonus_db
, FTAG
);
4452 umem_free(packbuf
, packsize
);
4453 umem_free(bigbuf
, bigsize
);
4454 umem_free(bigbuf_arcbufs
, 2 * s
* sizeof (arc_buf_t
*));
4455 umem_free(od
, size
);
4460 ztest_dmu_write_parallel(ztest_ds_t
*zd
, uint64_t id
)
4464 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4465 uint64_t offset
= (1ULL << (ztest_random(20) + 43)) +
4466 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4469 * Have multiple threads write to large offsets in an object
4470 * to verify that parallel writes to an object -- even to the
4471 * same blocks within the object -- doesn't cause any trouble.
4473 ztest_od_init(od
, ID_PARALLEL
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
4475 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0)
4478 while (ztest_random(10) != 0)
4479 ztest_io(zd
, od
->od_object
, offset
);
4481 umem_free(od
, sizeof (ztest_od_t
));
4485 ztest_dmu_prealloc(ztest_ds_t
*zd
, uint64_t id
)
4488 uint64_t offset
= (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT
)) +
4489 (ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
4490 uint64_t count
= ztest_random(20) + 1;
4491 uint64_t blocksize
= ztest_random_blocksize();
4494 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4496 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
4498 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4499 !ztest_random(2)) != 0) {
4500 umem_free(od
, sizeof (ztest_od_t
));
4504 if (ztest_truncate(zd
, od
->od_object
, offset
, count
* blocksize
) != 0) {
4505 umem_free(od
, sizeof (ztest_od_t
));
4509 ztest_prealloc(zd
, od
->od_object
, offset
, count
* blocksize
);
4511 data
= umem_zalloc(blocksize
, UMEM_NOFAIL
);
4513 while (ztest_random(count
) != 0) {
4514 uint64_t randoff
= offset
+ (ztest_random(count
) * blocksize
);
4515 if (ztest_write(zd
, od
->od_object
, randoff
, blocksize
,
4518 while (ztest_random(4) != 0)
4519 ztest_io(zd
, od
->od_object
, randoff
);
4522 umem_free(data
, blocksize
);
4523 umem_free(od
, sizeof (ztest_od_t
));
4527 * Verify that zap_{create,destroy,add,remove,update} work as expected.
4529 #define ZTEST_ZAP_MIN_INTS 1
4530 #define ZTEST_ZAP_MAX_INTS 4
4531 #define ZTEST_ZAP_MAX_PROPS 1000
4534 ztest_zap(ztest_ds_t
*zd
, uint64_t id
)
4536 objset_t
*os
= zd
->zd_os
;
4539 uint64_t txg
, last_txg
;
4540 uint64_t value
[ZTEST_ZAP_MAX_INTS
];
4541 uint64_t zl_ints
, zl_intsize
, prop
;
4544 char propname
[100], txgname
[100];
4546 char *hc
[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
4548 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4549 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4551 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4552 !ztest_random(2)) != 0)
4555 object
= od
->od_object
;
4558 * Generate a known hash collision, and verify that
4559 * we can lookup and remove both entries.
4561 tx
= dmu_tx_create(os
);
4562 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4563 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4566 for (i
= 0; i
< 2; i
++) {
4568 VERIFY3U(0, ==, zap_add(os
, object
, hc
[i
], sizeof (uint64_t),
4571 for (i
= 0; i
< 2; i
++) {
4572 VERIFY3U(EEXIST
, ==, zap_add(os
, object
, hc
[i
],
4573 sizeof (uint64_t), 1, &value
[i
], tx
));
4575 zap_length(os
, object
, hc
[i
], &zl_intsize
, &zl_ints
));
4576 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4577 ASSERT3U(zl_ints
, ==, 1);
4579 for (i
= 0; i
< 2; i
++) {
4580 VERIFY3U(0, ==, zap_remove(os
, object
, hc
[i
], tx
));
4585 * Generate a buch of random entries.
4587 ints
= MAX(ZTEST_ZAP_MIN_INTS
, object
% ZTEST_ZAP_MAX_INTS
);
4589 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4590 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4591 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4592 bzero(value
, sizeof (value
));
4596 * If these zap entries already exist, validate their contents.
4598 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4600 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4601 ASSERT3U(zl_ints
, ==, 1);
4603 VERIFY(zap_lookup(os
, object
, txgname
, zl_intsize
,
4604 zl_ints
, &last_txg
) == 0);
4606 VERIFY(zap_length(os
, object
, propname
, &zl_intsize
,
4609 ASSERT3U(zl_intsize
, ==, sizeof (uint64_t));
4610 ASSERT3U(zl_ints
, ==, ints
);
4612 VERIFY(zap_lookup(os
, object
, propname
, zl_intsize
,
4613 zl_ints
, value
) == 0);
4615 for (i
= 0; i
< ints
; i
++) {
4616 ASSERT3U(value
[i
], ==, last_txg
+ object
+ i
);
4619 ASSERT3U(error
, ==, ENOENT
);
4623 * Atomically update two entries in our zap object.
4624 * The first is named txg_%llu, and contains the txg
4625 * in which the property was last updated. The second
4626 * is named prop_%llu, and the nth element of its value
4627 * should be txg + object + n.
4629 tx
= dmu_tx_create(os
);
4630 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4631 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4636 fatal(0, "zap future leak: old %llu new %llu", last_txg
, txg
);
4638 for (i
= 0; i
< ints
; i
++)
4639 value
[i
] = txg
+ object
+ i
;
4641 VERIFY3U(0, ==, zap_update(os
, object
, txgname
, sizeof (uint64_t),
4643 VERIFY3U(0, ==, zap_update(os
, object
, propname
, sizeof (uint64_t),
4649 * Remove a random pair of entries.
4651 prop
= ztest_random(ZTEST_ZAP_MAX_PROPS
);
4652 (void) sprintf(propname
, "prop_%llu", (u_longlong_t
)prop
);
4653 (void) sprintf(txgname
, "txg_%llu", (u_longlong_t
)prop
);
4655 error
= zap_length(os
, object
, txgname
, &zl_intsize
, &zl_ints
);
4657 if (error
== ENOENT
)
4662 tx
= dmu_tx_create(os
);
4663 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4664 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4667 VERIFY3U(0, ==, zap_remove(os
, object
, txgname
, tx
));
4668 VERIFY3U(0, ==, zap_remove(os
, object
, propname
, tx
));
4671 umem_free(od
, sizeof (ztest_od_t
));
4675 * Testcase to test the upgrading of a microzap to fatzap.
4678 ztest_fzap(ztest_ds_t
*zd
, uint64_t id
)
4680 objset_t
*os
= zd
->zd_os
;
4682 uint64_t object
, txg
;
4685 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4686 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4688 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
),
4689 !ztest_random(2)) != 0)
4691 object
= od
->od_object
;
4694 * Add entries to this ZAP and make sure it spills over
4695 * and gets upgraded to a fatzap. Also, since we are adding
4696 * 2050 entries we should see ptrtbl growth and leaf-block split.
4698 for (i
= 0; i
< 2050; i
++) {
4699 char name
[ZFS_MAX_DATASET_NAME_LEN
];
4704 (void) snprintf(name
, sizeof (name
), "fzap-%llu-%llu",
4705 (u_longlong_t
)id
, (u_longlong_t
)value
);
4707 tx
= dmu_tx_create(os
);
4708 dmu_tx_hold_zap(tx
, object
, B_TRUE
, name
);
4709 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4712 error
= zap_add(os
, object
, name
, sizeof (uint64_t), 1,
4714 ASSERT(error
== 0 || error
== EEXIST
);
4718 umem_free(od
, sizeof (ztest_od_t
));
4723 ztest_zap_parallel(ztest_ds_t
*zd
, uint64_t id
)
4725 objset_t
*os
= zd
->zd_os
;
4727 uint64_t txg
, object
, count
, wsize
, wc
, zl_wsize
, zl_wc
;
4729 int i
, namelen
, error
;
4730 int micro
= ztest_random(2);
4731 char name
[20], string_value
[20];
4734 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4735 ztest_od_init(od
, ID_PARALLEL
, FTAG
, micro
, DMU_OT_ZAP_OTHER
, 0, 0, 0);
4737 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4738 umem_free(od
, sizeof (ztest_od_t
));
4742 object
= od
->od_object
;
4745 * Generate a random name of the form 'xxx.....' where each
4746 * x is a random printable character and the dots are dots.
4747 * There are 94 such characters, and the name length goes from
4748 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
4750 namelen
= ztest_random(sizeof (name
) - 5) + 5 + 1;
4752 for (i
= 0; i
< 3; i
++)
4753 name
[i
] = '!' + ztest_random('~' - '!' + 1);
4754 for (; i
< namelen
- 1; i
++)
4758 if ((namelen
& 1) || micro
) {
4759 wsize
= sizeof (txg
);
4765 data
= string_value
;
4769 VERIFY0(zap_count(os
, object
, &count
));
4770 ASSERT(count
!= -1ULL);
4773 * Select an operation: length, lookup, add, update, remove.
4775 i
= ztest_random(5);
4778 tx
= dmu_tx_create(os
);
4779 dmu_tx_hold_zap(tx
, object
, B_TRUE
, NULL
);
4780 txg
= ztest_tx_assign(tx
, TXG_MIGHTWAIT
, FTAG
);
4782 umem_free(od
, sizeof (ztest_od_t
));
4785 bcopy(name
, string_value
, namelen
);
4789 bzero(string_value
, namelen
);
4795 error
= zap_length(os
, object
, name
, &zl_wsize
, &zl_wc
);
4797 ASSERT3U(wsize
, ==, zl_wsize
);
4798 ASSERT3U(wc
, ==, zl_wc
);
4800 ASSERT3U(error
, ==, ENOENT
);
4805 error
= zap_lookup(os
, object
, name
, wsize
, wc
, data
);
4807 if (data
== string_value
&&
4808 bcmp(name
, data
, namelen
) != 0)
4809 fatal(0, "name '%s' != val '%s' len %d",
4810 name
, data
, namelen
);
4812 ASSERT3U(error
, ==, ENOENT
);
4817 error
= zap_add(os
, object
, name
, wsize
, wc
, data
, tx
);
4818 ASSERT(error
== 0 || error
== EEXIST
);
4822 VERIFY(zap_update(os
, object
, name
, wsize
, wc
, data
, tx
) == 0);
4826 error
= zap_remove(os
, object
, name
, tx
);
4827 ASSERT(error
== 0 || error
== ENOENT
);
4834 umem_free(od
, sizeof (ztest_od_t
));
4838 * Commit callback data.
4840 typedef struct ztest_cb_data
{
4841 list_node_t zcd_node
;
4843 int zcd_expected_err
;
4844 boolean_t zcd_added
;
4845 boolean_t zcd_called
;
4849 /* This is the actual commit callback function */
4851 ztest_commit_callback(void *arg
, int error
)
4853 ztest_cb_data_t
*data
= arg
;
4854 uint64_t synced_txg
;
4856 VERIFY(data
!= NULL
);
4857 VERIFY3S(data
->zcd_expected_err
, ==, error
);
4858 VERIFY(!data
->zcd_called
);
4860 synced_txg
= spa_last_synced_txg(data
->zcd_spa
);
4861 if (data
->zcd_txg
> synced_txg
)
4862 fatal(0, "commit callback of txg %" PRIu64
" called prematurely"
4863 ", last synced txg = %" PRIu64
"\n", data
->zcd_txg
,
4866 data
->zcd_called
= B_TRUE
;
4868 if (error
== ECANCELED
) {
4869 ASSERT0(data
->zcd_txg
);
4870 ASSERT(!data
->zcd_added
);
4873 * The private callback data should be destroyed here, but
4874 * since we are going to check the zcd_called field after
4875 * dmu_tx_abort(), we will destroy it there.
4880 ASSERT(data
->zcd_added
);
4881 ASSERT3U(data
->zcd_txg
, !=, 0);
4883 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4885 /* See if this cb was called more quickly */
4886 if ((synced_txg
- data
->zcd_txg
) < zc_min_txg_delay
)
4887 zc_min_txg_delay
= synced_txg
- data
->zcd_txg
;
4889 /* Remove our callback from the list */
4890 list_remove(&zcl
.zcl_callbacks
, data
);
4892 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
4894 umem_free(data
, sizeof (ztest_cb_data_t
));
4897 /* Allocate and initialize callback data structure */
4898 static ztest_cb_data_t
*
4899 ztest_create_cb_data(objset_t
*os
, uint64_t txg
)
4901 ztest_cb_data_t
*cb_data
;
4903 cb_data
= umem_zalloc(sizeof (ztest_cb_data_t
), UMEM_NOFAIL
);
4905 cb_data
->zcd_txg
= txg
;
4906 cb_data
->zcd_spa
= dmu_objset_spa(os
);
4907 list_link_init(&cb_data
->zcd_node
);
4913 * Commit callback test.
4916 ztest_dmu_commit_callbacks(ztest_ds_t
*zd
, uint64_t id
)
4918 objset_t
*os
= zd
->zd_os
;
4921 ztest_cb_data_t
*cb_data
[3], *tmp_cb
;
4922 uint64_t old_txg
, txg
;
4925 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
4926 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
4928 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
4929 umem_free(od
, sizeof (ztest_od_t
));
4933 tx
= dmu_tx_create(os
);
4935 cb_data
[0] = ztest_create_cb_data(os
, 0);
4936 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[0]);
4938 dmu_tx_hold_write(tx
, od
->od_object
, 0, sizeof (uint64_t));
4940 /* Every once in a while, abort the transaction on purpose */
4941 if (ztest_random(100) == 0)
4945 error
= dmu_tx_assign(tx
, TXG_NOWAIT
);
4947 txg
= error
? 0 : dmu_tx_get_txg(tx
);
4949 cb_data
[0]->zcd_txg
= txg
;
4950 cb_data
[1] = ztest_create_cb_data(os
, txg
);
4951 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[1]);
4955 * It's not a strict requirement to call the registered
4956 * callbacks from inside dmu_tx_abort(), but that's what
4957 * it's supposed to happen in the current implementation
4958 * so we will check for that.
4960 for (i
= 0; i
< 2; i
++) {
4961 cb_data
[i
]->zcd_expected_err
= ECANCELED
;
4962 VERIFY(!cb_data
[i
]->zcd_called
);
4967 for (i
= 0; i
< 2; i
++) {
4968 VERIFY(cb_data
[i
]->zcd_called
);
4969 umem_free(cb_data
[i
], sizeof (ztest_cb_data_t
));
4972 umem_free(od
, sizeof (ztest_od_t
));
4976 cb_data
[2] = ztest_create_cb_data(os
, txg
);
4977 dmu_tx_callback_register(tx
, ztest_commit_callback
, cb_data
[2]);
4980 * Read existing data to make sure there isn't a future leak.
4982 VERIFY(0 == dmu_read(os
, od
->od_object
, 0, sizeof (uint64_t),
4983 &old_txg
, DMU_READ_PREFETCH
));
4986 fatal(0, "future leak: got %" PRIu64
", open txg is %" PRIu64
,
4989 dmu_write(os
, od
->od_object
, 0, sizeof (uint64_t), &txg
, tx
);
4991 (void) mutex_enter(&zcl
.zcl_callbacks_lock
);
4994 * Since commit callbacks don't have any ordering requirement and since
4995 * it is theoretically possible for a commit callback to be called
4996 * after an arbitrary amount of time has elapsed since its txg has been
4997 * synced, it is difficult to reliably determine whether a commit
4998 * callback hasn't been called due to high load or due to a flawed
5001 * In practice, we will assume that if after a certain number of txgs a
5002 * commit callback hasn't been called, then most likely there's an
5003 * implementation bug..
5005 tmp_cb
= list_head(&zcl
.zcl_callbacks
);
5006 if (tmp_cb
!= NULL
&&
5007 tmp_cb
->zcd_txg
+ ZTEST_COMMIT_CB_THRESH
< txg
) {
5008 fatal(0, "Commit callback threshold exceeded, oldest txg: %"
5009 PRIu64
", open txg: %" PRIu64
"\n", tmp_cb
->zcd_txg
, txg
);
5013 * Let's find the place to insert our callbacks.
5015 * Even though the list is ordered by txg, it is possible for the
5016 * insertion point to not be the end because our txg may already be
5017 * quiescing at this point and other callbacks in the open txg
5018 * (from other objsets) may have sneaked in.
5020 tmp_cb
= list_tail(&zcl
.zcl_callbacks
);
5021 while (tmp_cb
!= NULL
&& tmp_cb
->zcd_txg
> txg
)
5022 tmp_cb
= list_prev(&zcl
.zcl_callbacks
, tmp_cb
);
5024 /* Add the 3 callbacks to the list */
5025 for (i
= 0; i
< 3; i
++) {
5027 list_insert_head(&zcl
.zcl_callbacks
, cb_data
[i
]);
5029 list_insert_after(&zcl
.zcl_callbacks
, tmp_cb
,
5032 cb_data
[i
]->zcd_added
= B_TRUE
;
5033 VERIFY(!cb_data
[i
]->zcd_called
);
5035 tmp_cb
= cb_data
[i
];
5040 (void) mutex_exit(&zcl
.zcl_callbacks_lock
);
5044 umem_free(od
, sizeof (ztest_od_t
));
5048 * Visit each object in the dataset. Verify that its properties
5049 * are consistent what was stored in the block tag when it was created,
5050 * and that its unused bonus buffer space has not been overwritten.
5054 ztest_verify_dnode_bt(ztest_ds_t
*zd
, uint64_t id
)
5056 objset_t
*os
= zd
->zd_os
;
5060 for (obj
= 0; err
== 0; err
= dmu_object_next(os
, &obj
, FALSE
, 0)) {
5061 ztest_block_tag_t
*bt
= NULL
;
5062 dmu_object_info_t doi
;
5065 if (dmu_bonus_hold(os
, obj
, FTAG
, &db
) != 0)
5068 dmu_object_info_from_db(db
, &doi
);
5069 if (doi
.doi_bonus_size
>= sizeof (*bt
))
5070 bt
= ztest_bt_bonus(db
);
5072 if (bt
&& bt
->bt_magic
== BT_MAGIC
) {
5073 ztest_bt_verify(bt
, os
, obj
, doi
.doi_dnodesize
,
5074 bt
->bt_offset
, bt
->bt_gen
, bt
->bt_txg
,
5076 ztest_verify_unused_bonus(db
, bt
, obj
, os
, bt
->bt_gen
);
5079 dmu_buf_rele(db
, FTAG
);
5085 ztest_dsl_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
5087 zfs_prop_t proplist
[] = {
5089 ZFS_PROP_COMPRESSION
,
5095 (void) rw_rdlock(&ztest_name_lock
);
5097 for (p
= 0; p
< sizeof (proplist
) / sizeof (proplist
[0]); p
++)
5098 (void) ztest_dsl_prop_set_uint64(zd
->zd_name
, proplist
[p
],
5099 ztest_random_dsl_prop(proplist
[p
]), (int)ztest_random(2));
5101 VERIFY0(ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_RECORDSIZE
,
5102 ztest_random_blocksize(), (int)ztest_random(2)));
5104 (void) rw_unlock(&ztest_name_lock
);
5109 ztest_spa_prop_get_set(ztest_ds_t
*zd
, uint64_t id
)
5111 nvlist_t
*props
= NULL
;
5113 (void) rw_rdlock(&ztest_name_lock
);
5115 (void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO
,
5116 ZIO_DEDUPDITTO_MIN
+ ztest_random(ZIO_DEDUPDITTO_MIN
));
5118 VERIFY0(spa_prop_get(ztest_spa
, &props
));
5120 if (ztest_opts
.zo_verbose
>= 6)
5121 dump_nvlist(props
, 4);
5125 (void) rw_unlock(&ztest_name_lock
);
5129 user_release_one(const char *snapname
, const char *holdname
)
5131 nvlist_t
*snaps
, *holds
;
5134 snaps
= fnvlist_alloc();
5135 holds
= fnvlist_alloc();
5136 fnvlist_add_boolean(holds
, holdname
);
5137 fnvlist_add_nvlist(snaps
, snapname
, holds
);
5138 fnvlist_free(holds
);
5139 error
= dsl_dataset_user_release(snaps
, NULL
);
5140 fnvlist_free(snaps
);
5145 * Test snapshot hold/release and deferred destroy.
5148 ztest_dmu_snapshot_hold(ztest_ds_t
*zd
, uint64_t id
)
5151 objset_t
*os
= zd
->zd_os
;
5155 char clonename
[100];
5157 char osname
[ZFS_MAX_DATASET_NAME_LEN
];
5160 (void) rw_rdlock(&ztest_name_lock
);
5162 dmu_objset_name(os
, osname
);
5164 (void) snprintf(snapname
, sizeof (snapname
), "sh1_%llu",
5166 (void) snprintf(fullname
, sizeof (fullname
), "%s@%s", osname
, snapname
);
5167 (void) snprintf(clonename
, sizeof (clonename
),
5168 "%s/ch1_%llu", osname
, (u_longlong_t
)id
);
5169 (void) snprintf(tag
, sizeof (tag
), "tag_%llu", (u_longlong_t
)id
);
5172 * Clean up from any previous run.
5174 error
= dsl_destroy_head(clonename
);
5175 if (error
!= ENOENT
)
5177 error
= user_release_one(fullname
, tag
);
5178 if (error
!= ESRCH
&& error
!= ENOENT
)
5180 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
5181 if (error
!= ENOENT
)
5185 * Create snapshot, clone it, mark snap for deferred destroy,
5186 * destroy clone, verify snap was also destroyed.
5188 error
= dmu_objset_snapshot_one(osname
, snapname
);
5190 if (error
== ENOSPC
) {
5191 ztest_record_enospc("dmu_objset_snapshot");
5194 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
5197 error
= dmu_objset_clone(clonename
, fullname
);
5199 if (error
== ENOSPC
) {
5200 ztest_record_enospc("dmu_objset_clone");
5203 fatal(0, "dmu_objset_clone(%s) = %d", clonename
, error
);
5206 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
5208 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5212 error
= dsl_destroy_head(clonename
);
5214 fatal(0, "dsl_destroy_head(%s) = %d", clonename
, error
);
5216 error
= dmu_objset_hold(fullname
, FTAG
, &origin
);
5217 if (error
!= ENOENT
)
5218 fatal(0, "dmu_objset_hold(%s) = %d", fullname
, error
);
5221 * Create snapshot, add temporary hold, verify that we can't
5222 * destroy a held snapshot, mark for deferred destroy,
5223 * release hold, verify snapshot was destroyed.
5225 error
= dmu_objset_snapshot_one(osname
, snapname
);
5227 if (error
== ENOSPC
) {
5228 ztest_record_enospc("dmu_objset_snapshot");
5231 fatal(0, "dmu_objset_snapshot(%s) = %d", fullname
, error
);
5234 holds
= fnvlist_alloc();
5235 fnvlist_add_string(holds
, fullname
, tag
);
5236 error
= dsl_dataset_user_hold(holds
, 0, NULL
);
5237 fnvlist_free(holds
);
5239 if (error
== ENOSPC
) {
5240 ztest_record_enospc("dsl_dataset_user_hold");
5243 fatal(0, "dsl_dataset_user_hold(%s, %s) = %u",
5244 fullname
, tag
, error
);
5247 error
= dsl_destroy_snapshot(fullname
, B_FALSE
);
5248 if (error
!= EBUSY
) {
5249 fatal(0, "dsl_destroy_snapshot(%s, B_FALSE) = %d",
5253 error
= dsl_destroy_snapshot(fullname
, B_TRUE
);
5255 fatal(0, "dsl_destroy_snapshot(%s, B_TRUE) = %d",
5259 error
= user_release_one(fullname
, tag
);
5261 fatal(0, "user_release_one(%s, %s) = %d", fullname
, tag
, error
);
5263 VERIFY3U(dmu_objset_hold(fullname
, FTAG
, &origin
), ==, ENOENT
);
5266 (void) rw_unlock(&ztest_name_lock
);
5270 * Inject random faults into the on-disk data.
5274 ztest_fault_inject(ztest_ds_t
*zd
, uint64_t id
)
5276 ztest_shared_t
*zs
= ztest_shared
;
5277 spa_t
*spa
= ztest_spa
;
5281 uint64_t bad
= 0x1990c0ffeedecadeull
;
5286 int bshift
= SPA_MAXBLOCKSHIFT
+ 2;
5292 boolean_t islog
= B_FALSE
;
5294 path0
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5295 pathrand
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
5297 mutex_enter(&ztest_vdev_lock
);
5298 maxfaults
= MAXFAULTS();
5299 leaves
= MAX(zs
->zs_mirrors
, 1) * ztest_opts
.zo_raidz
;
5300 mirror_save
= zs
->zs_mirrors
;
5301 mutex_exit(&ztest_vdev_lock
);
5303 ASSERT(leaves
>= 1);
5306 * Grab the name lock as reader. There are some operations
5307 * which don't like to have their vdevs changed while
5308 * they are in progress (i.e. spa_change_guid). Those
5309 * operations will have grabbed the name lock as writer.
5311 (void) rw_rdlock(&ztest_name_lock
);
5314 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
5316 spa_config_enter(spa
, SCL_STATE
, FTAG
, RW_READER
);
5318 if (ztest_random(2) == 0) {
5320 * Inject errors on a normal data device or slog device.
5322 top
= ztest_random_vdev_top(spa
, B_TRUE
);
5323 leaf
= ztest_random(leaves
) + zs
->zs_splits
;
5326 * Generate paths to the first leaf in this top-level vdev,
5327 * and to the random leaf we selected. We'll induce transient
5328 * write failures and random online/offline activity on leaf 0,
5329 * and we'll write random garbage to the randomly chosen leaf.
5331 (void) snprintf(path0
, MAXPATHLEN
, ztest_dev_template
,
5332 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5333 top
* leaves
+ zs
->zs_splits
);
5334 (void) snprintf(pathrand
, MAXPATHLEN
, ztest_dev_template
,
5335 ztest_opts
.zo_dir
, ztest_opts
.zo_pool
,
5336 top
* leaves
+ leaf
);
5338 vd0
= vdev_lookup_by_path(spa
->spa_root_vdev
, path0
);
5339 if (vd0
!= NULL
&& vd0
->vdev_top
->vdev_islog
)
5343 * If the top-level vdev needs to be resilvered
5344 * then we only allow faults on the device that is
5347 if (vd0
!= NULL
&& maxfaults
!= 1 &&
5348 (!vdev_resilver_needed(vd0
->vdev_top
, NULL
, NULL
) ||
5349 vd0
->vdev_resilver_txg
!= 0)) {
5351 * Make vd0 explicitly claim to be unreadable,
5352 * or unwriteable, or reach behind its back
5353 * and close the underlying fd. We can do this if
5354 * maxfaults == 0 because we'll fail and reexecute,
5355 * and we can do it if maxfaults >= 2 because we'll
5356 * have enough redundancy. If maxfaults == 1, the
5357 * combination of this with injection of random data
5358 * corruption below exceeds the pool's fault tolerance.
5360 vdev_file_t
*vf
= vd0
->vdev_tsd
;
5362 if (vf
!= NULL
&& ztest_random(3) == 0) {
5363 (void) close(vf
->vf_vnode
->v_fd
);
5364 vf
->vf_vnode
->v_fd
= -1;
5365 } else if (ztest_random(2) == 0) {
5366 vd0
->vdev_cant_read
= B_TRUE
;
5368 vd0
->vdev_cant_write
= B_TRUE
;
5370 guid0
= vd0
->vdev_guid
;
5374 * Inject errors on an l2cache device.
5376 spa_aux_vdev_t
*sav
= &spa
->spa_l2cache
;
5378 if (sav
->sav_count
== 0) {
5379 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5380 (void) rw_unlock(&ztest_name_lock
);
5383 vd0
= sav
->sav_vdevs
[ztest_random(sav
->sav_count
)];
5384 guid0
= vd0
->vdev_guid
;
5385 (void) strcpy(path0
, vd0
->vdev_path
);
5386 (void) strcpy(pathrand
, vd0
->vdev_path
);
5390 maxfaults
= INT_MAX
; /* no limit on cache devices */
5393 spa_config_exit(spa
, SCL_STATE
, FTAG
);
5394 (void) rw_unlock(&ztest_name_lock
);
5397 * If we can tolerate two or more faults, or we're dealing
5398 * with a slog, randomly online/offline vd0.
5400 if ((maxfaults
>= 2 || islog
) && guid0
!= 0) {
5401 if (ztest_random(10) < 6) {
5402 int flags
= (ztest_random(2) == 0 ?
5403 ZFS_OFFLINE_TEMPORARY
: 0);
5406 * We have to grab the zs_name_lock as writer to
5407 * prevent a race between offlining a slog and
5408 * destroying a dataset. Offlining the slog will
5409 * grab a reference on the dataset which may cause
5410 * dsl_destroy_head() to fail with EBUSY thus
5411 * leaving the dataset in an inconsistent state.
5414 (void) rw_wrlock(&ztest_name_lock
);
5416 VERIFY(vdev_offline(spa
, guid0
, flags
) != EBUSY
);
5419 (void) rw_unlock(&ztest_name_lock
);
5422 * Ideally we would like to be able to randomly
5423 * call vdev_[on|off]line without holding locks
5424 * to force unpredictable failures but the side
5425 * effects of vdev_[on|off]line prevent us from
5426 * doing so. We grab the ztest_vdev_lock here to
5427 * prevent a race between injection testing and
5430 mutex_enter(&ztest_vdev_lock
);
5431 (void) vdev_online(spa
, guid0
, 0, NULL
);
5432 mutex_exit(&ztest_vdev_lock
);
5440 * We have at least single-fault tolerance, so inject data corruption.
5442 fd
= open(pathrand
, O_RDWR
);
5444 if (fd
== -1) /* we hit a gap in the device namespace */
5447 fsize
= lseek(fd
, 0, SEEK_END
);
5449 while (--iters
!= 0) {
5451 * The offset must be chosen carefully to ensure that
5452 * we do not inject a given logical block with errors
5453 * on two different leaf devices, because ZFS can not
5454 * tolerate that (if maxfaults==1).
5456 * We divide each leaf into chunks of size
5457 * (# leaves * SPA_MAXBLOCKSIZE * 4). Within each chunk
5458 * there is a series of ranges to which we can inject errors.
5459 * Each range can accept errors on only a single leaf vdev.
5460 * The error injection ranges are separated by ranges
5461 * which we will not inject errors on any device (DMZs).
5462 * Each DMZ must be large enough such that a single block
5463 * can not straddle it, so that a single block can not be
5464 * a target in two different injection ranges (on different
5467 * For example, with 3 leaves, each chunk looks like:
5468 * 0 to 32M: injection range for leaf 0
5469 * 32M to 64M: DMZ - no injection allowed
5470 * 64M to 96M: injection range for leaf 1
5471 * 96M to 128M: DMZ - no injection allowed
5472 * 128M to 160M: injection range for leaf 2
5473 * 160M to 192M: DMZ - no injection allowed
5475 offset
= ztest_random(fsize
/ (leaves
<< bshift
)) *
5476 (leaves
<< bshift
) + (leaf
<< bshift
) +
5477 (ztest_random(1ULL << (bshift
- 1)) & -8ULL);
5480 * Only allow damage to the labels at one end of the vdev.
5482 * If all labels are damaged, the device will be totally
5483 * inaccessible, which will result in loss of data,
5484 * because we also damage (parts of) the other side of
5487 * Additionally, we will always have both an even and an
5488 * odd label, so that we can handle crashes in the
5489 * middle of vdev_config_sync().
5491 if ((leaf
& 1) == 0 && offset
< VDEV_LABEL_START_SIZE
)
5495 * The two end labels are stored at the "end" of the disk, but
5496 * the end of the disk (vdev_psize) is aligned to
5497 * sizeof (vdev_label_t).
5499 uint64_t psize
= P2ALIGN(fsize
, sizeof (vdev_label_t
));
5500 if ((leaf
& 1) == 1 &&
5501 offset
+ sizeof (bad
) > psize
- VDEV_LABEL_END_SIZE
)
5504 mutex_enter(&ztest_vdev_lock
);
5505 if (mirror_save
!= zs
->zs_mirrors
) {
5506 mutex_exit(&ztest_vdev_lock
);
5511 if (pwrite(fd
, &bad
, sizeof (bad
), offset
) != sizeof (bad
))
5512 fatal(1, "can't inject bad word at 0x%llx in %s",
5515 mutex_exit(&ztest_vdev_lock
);
5517 if (ztest_opts
.zo_verbose
>= 7)
5518 (void) printf("injected bad word into %s,"
5519 " offset 0x%llx\n", pathrand
, (u_longlong_t
)offset
);
5524 umem_free(path0
, MAXPATHLEN
);
5525 umem_free(pathrand
, MAXPATHLEN
);
5529 * Verify that DDT repair works as expected.
5532 ztest_ddt_repair(ztest_ds_t
*zd
, uint64_t id
)
5534 ztest_shared_t
*zs
= ztest_shared
;
5535 spa_t
*spa
= ztest_spa
;
5536 objset_t
*os
= zd
->zd_os
;
5538 uint64_t object
, blocksize
, txg
, pattern
, psize
;
5539 enum zio_checksum checksum
= spa_dedup_checksum(spa
);
5544 int copies
= 2 * ZIO_DEDUPDITTO_MIN
;
5547 blocksize
= ztest_random_blocksize();
5548 blocksize
= MIN(blocksize
, 2048); /* because we write so many */
5550 od
= umem_alloc(sizeof (ztest_od_t
), UMEM_NOFAIL
);
5551 ztest_od_init(od
, id
, FTAG
, 0, DMU_OT_UINT64_OTHER
, blocksize
, 0, 0);
5553 if (ztest_object_init(zd
, od
, sizeof (ztest_od_t
), B_FALSE
) != 0) {
5554 umem_free(od
, sizeof (ztest_od_t
));
5559 * Take the name lock as writer to prevent anyone else from changing
5560 * the pool and dataset properies we need to maintain during this test.
5562 (void) rw_wrlock(&ztest_name_lock
);
5564 if (ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_DEDUP
, checksum
,
5566 ztest_dsl_prop_set_uint64(zd
->zd_name
, ZFS_PROP_COPIES
, 1,
5568 (void) rw_unlock(&ztest_name_lock
);
5569 umem_free(od
, sizeof (ztest_od_t
));
5573 dmu_objset_stats_t dds
;
5574 dsl_pool_config_enter(dmu_objset_pool(os
), FTAG
);
5575 dmu_objset_fast_stat(os
, &dds
);
5576 dsl_pool_config_exit(dmu_objset_pool(os
), FTAG
);
5578 object
= od
[0].od_object
;
5579 blocksize
= od
[0].od_blocksize
;
5580 pattern
= zs
->zs_guid
^ dds
.dds_guid
;
5582 ASSERT(object
!= 0);
5584 tx
= dmu_tx_create(os
);
5585 dmu_tx_hold_write(tx
, object
, 0, copies
* blocksize
);
5586 txg
= ztest_tx_assign(tx
, TXG_WAIT
, FTAG
);
5588 (void) rw_unlock(&ztest_name_lock
);
5589 umem_free(od
, sizeof (ztest_od_t
));
5594 * Write all the copies of our block.
5596 for (i
= 0; i
< copies
; i
++) {
5597 uint64_t offset
= i
* blocksize
;
5598 int error
= dmu_buf_hold(os
, object
, offset
, FTAG
, &db
,
5599 DMU_READ_NO_PREFETCH
);
5601 fatal(B_FALSE
, "dmu_buf_hold(%p, %llu, %llu) = %u",
5602 os
, (long long)object
, (long long) offset
, error
);
5604 ASSERT(db
->db_offset
== offset
);
5605 ASSERT(db
->db_size
== blocksize
);
5606 ASSERT(ztest_pattern_match(db
->db_data
, db
->db_size
, pattern
) ||
5607 ztest_pattern_match(db
->db_data
, db
->db_size
, 0ULL));
5608 dmu_buf_will_fill(db
, tx
);
5609 ztest_pattern_set(db
->db_data
, db
->db_size
, pattern
);
5610 dmu_buf_rele(db
, FTAG
);
5614 txg_wait_synced(spa_get_dsl(spa
), txg
);
5617 * Find out what block we got.
5619 VERIFY0(dmu_buf_hold(os
, object
, 0, FTAG
, &db
,
5620 DMU_READ_NO_PREFETCH
));
5621 blk
= *((dmu_buf_impl_t
*)db
)->db_blkptr
;
5622 dmu_buf_rele(db
, FTAG
);
5625 * Damage the block. Dedup-ditto will save us when we read it later.
5627 psize
= BP_GET_PSIZE(&blk
);
5628 abd
= abd_alloc_linear(psize
, B_TRUE
);
5629 ztest_pattern_set(abd_to_buf(abd
), psize
, ~pattern
);
5631 (void) zio_wait(zio_rewrite(NULL
, spa
, 0, &blk
,
5632 abd
, psize
, NULL
, NULL
, ZIO_PRIORITY_SYNC_WRITE
,
5633 ZIO_FLAG_CANFAIL
| ZIO_FLAG_INDUCE_DAMAGE
, NULL
));
5637 (void) rw_unlock(&ztest_name_lock
);
5638 umem_free(od
, sizeof (ztest_od_t
));
5646 ztest_scrub(ztest_ds_t
*zd
, uint64_t id
)
5648 spa_t
*spa
= ztest_spa
;
5650 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5651 (void) poll(NULL
, 0, 100); /* wait a moment, then force a restart */
5652 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
5656 * Change the guid for the pool.
5660 ztest_reguid(ztest_ds_t
*zd
, uint64_t id
)
5662 spa_t
*spa
= ztest_spa
;
5663 uint64_t orig
, load
;
5666 orig
= spa_guid(spa
);
5667 load
= spa_load_guid(spa
);
5669 (void) rw_wrlock(&ztest_name_lock
);
5670 error
= spa_change_guid(spa
);
5671 (void) rw_unlock(&ztest_name_lock
);
5676 if (ztest_opts
.zo_verbose
>= 4) {
5677 (void) printf("Changed guid old %llu -> %llu\n",
5678 (u_longlong_t
)orig
, (u_longlong_t
)spa_guid(spa
));
5681 VERIFY3U(orig
, !=, spa_guid(spa
));
5682 VERIFY3U(load
, ==, spa_load_guid(spa
));
5686 * Rename the pool to a different name and then rename it back.
5690 ztest_spa_rename(ztest_ds_t
*zd
, uint64_t id
)
5692 char *oldname
, *newname
;
5695 if (ztest_opts
.zo_mmp_test
)
5698 (void) rw_wrlock(&ztest_name_lock
);
5700 oldname
= ztest_opts
.zo_pool
;
5701 newname
= umem_alloc(strlen(oldname
) + 5, UMEM_NOFAIL
);
5702 (void) strcpy(newname
, oldname
);
5703 (void) strcat(newname
, "_tmp");
5708 VERIFY3U(0, ==, spa_rename(oldname
, newname
));
5711 * Try to open it under the old name, which shouldn't exist
5713 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
5716 * Open it under the new name and make sure it's still the same spa_t.
5718 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
5720 ASSERT(spa
== ztest_spa
);
5721 spa_close(spa
, FTAG
);
5724 * Rename it back to the original
5726 VERIFY3U(0, ==, spa_rename(newname
, oldname
));
5729 * Make sure it can still be opened
5731 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
5733 ASSERT(spa
== ztest_spa
);
5734 spa_close(spa
, FTAG
);
5736 umem_free(newname
, strlen(newname
) + 1);
5738 (void) rw_unlock(&ztest_name_lock
);
5742 ztest_fletcher(ztest_ds_t
*zd
, uint64_t id
)
5744 hrtime_t end
= gethrtime() + NANOSEC
;
5746 while (gethrtime() <= end
) {
5747 int run_count
= 100;
5749 struct abd
*abd_data
, *abd_meta
;
5754 zio_cksum_t zc_ref_byteswap
;
5756 size
= ztest_random_blocksize();
5758 buf
= umem_alloc(size
, UMEM_NOFAIL
);
5759 abd_data
= abd_alloc(size
, B_FALSE
);
5760 abd_meta
= abd_alloc(size
, B_TRUE
);
5762 for (i
= 0, ptr
= buf
; i
< size
/ sizeof (*ptr
); i
++, ptr
++)
5763 *ptr
= ztest_random(UINT_MAX
);
5765 abd_copy_from_buf_off(abd_data
, buf
, 0, size
);
5766 abd_copy_from_buf_off(abd_meta
, buf
, 0, size
);
5768 VERIFY0(fletcher_4_impl_set("scalar"));
5769 fletcher_4_native(buf
, size
, NULL
, &zc_ref
);
5770 fletcher_4_byteswap(buf
, size
, NULL
, &zc_ref_byteswap
);
5772 VERIFY0(fletcher_4_impl_set("cycle"));
5773 while (run_count
-- > 0) {
5775 zio_cksum_t zc_byteswap
;
5777 fletcher_4_byteswap(buf
, size
, NULL
, &zc_byteswap
);
5778 fletcher_4_native(buf
, size
, NULL
, &zc
);
5780 VERIFY0(bcmp(&zc
, &zc_ref
, sizeof (zc
)));
5781 VERIFY0(bcmp(&zc_byteswap
, &zc_ref_byteswap
,
5782 sizeof (zc_byteswap
)));
5784 /* Test ABD - data */
5785 abd_fletcher_4_byteswap(abd_data
, size
, NULL
,
5787 abd_fletcher_4_native(abd_data
, size
, NULL
, &zc
);
5789 VERIFY0(bcmp(&zc
, &zc_ref
, sizeof (zc
)));
5790 VERIFY0(bcmp(&zc_byteswap
, &zc_ref_byteswap
,
5791 sizeof (zc_byteswap
)));
5793 /* Test ABD - metadata */
5794 abd_fletcher_4_byteswap(abd_meta
, size
, NULL
,
5796 abd_fletcher_4_native(abd_meta
, size
, NULL
, &zc
);
5798 VERIFY0(bcmp(&zc
, &zc_ref
, sizeof (zc
)));
5799 VERIFY0(bcmp(&zc_byteswap
, &zc_ref_byteswap
,
5800 sizeof (zc_byteswap
)));
5804 umem_free(buf
, size
);
5811 ztest_fletcher_incr(ztest_ds_t
*zd
, uint64_t id
)
5818 zio_cksum_t zc_ref_bswap
;
5820 hrtime_t end
= gethrtime() + NANOSEC
;
5822 while (gethrtime() <= end
) {
5823 int run_count
= 100;
5825 size
= ztest_random_blocksize();
5826 buf
= umem_alloc(size
, UMEM_NOFAIL
);
5828 for (i
= 0, ptr
= buf
; i
< size
/ sizeof (*ptr
); i
++, ptr
++)
5829 *ptr
= ztest_random(UINT_MAX
);
5831 VERIFY0(fletcher_4_impl_set("scalar"));
5832 fletcher_4_native(buf
, size
, NULL
, &zc_ref
);
5833 fletcher_4_byteswap(buf
, size
, NULL
, &zc_ref_bswap
);
5835 VERIFY0(fletcher_4_impl_set("cycle"));
5837 while (run_count
-- > 0) {
5839 zio_cksum_t zc_bswap
;
5842 ZIO_SET_CHECKSUM(&zc
, 0, 0, 0, 0);
5843 ZIO_SET_CHECKSUM(&zc_bswap
, 0, 0, 0, 0);
5845 while (pos
< size
) {
5846 size_t inc
= 64 * ztest_random(size
/ 67);
5847 /* sometimes add few bytes to test non-simd */
5848 if (ztest_random(100) < 10)
5849 inc
+= P2ALIGN(ztest_random(64),
5852 if (inc
> (size
- pos
))
5855 fletcher_4_incremental_native(buf
+ pos
, inc
,
5857 fletcher_4_incremental_byteswap(buf
+ pos
, inc
,
5863 VERIFY3U(pos
, ==, size
);
5865 VERIFY(ZIO_CHECKSUM_EQUAL(zc
, zc_ref
));
5866 VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap
, zc_ref_bswap
));
5869 * verify if incremental on the whole buffer is
5870 * equivalent to non-incremental version
5872 ZIO_SET_CHECKSUM(&zc
, 0, 0, 0, 0);
5873 ZIO_SET_CHECKSUM(&zc_bswap
, 0, 0, 0, 0);
5875 fletcher_4_incremental_native(buf
, size
, &zc
);
5876 fletcher_4_incremental_byteswap(buf
, size
, &zc_bswap
);
5878 VERIFY(ZIO_CHECKSUM_EQUAL(zc
, zc_ref
));
5879 VERIFY(ZIO_CHECKSUM_EQUAL(zc_bswap
, zc_ref_bswap
));
5882 umem_free(buf
, size
);
5887 ztest_check_path(char *path
)
5890 /* return true on success */
5891 return (!stat(path
, &s
));
5895 ztest_get_zdb_bin(char *bin
, int len
)
5899 * Try to use ZDB_PATH and in-tree zdb path. If not successful, just
5900 * let popen to search through PATH.
5902 if ((zdb_path
= getenv("ZDB_PATH"))) {
5903 strlcpy(bin
, zdb_path
, len
); /* In env */
5904 if (!ztest_check_path(bin
)) {
5905 ztest_dump_core
= 0;
5906 fatal(1, "invalid ZDB_PATH '%s'", bin
);
5911 VERIFY(realpath(getexecname(), bin
) != NULL
);
5912 if (strstr(bin
, "/ztest/")) {
5913 strstr(bin
, "/ztest/")[0] = '\0'; /* In-tree */
5914 strcat(bin
, "/zdb/zdb");
5915 if (ztest_check_path(bin
))
5922 * Verify pool integrity by running zdb.
5925 ztest_run_zdb(char *pool
)
5931 const int len
= MAXPATHLEN
+ MAXNAMELEN
+ 20;
5934 bin
= umem_alloc(len
, UMEM_NOFAIL
);
5935 zdb
= umem_alloc(len
, UMEM_NOFAIL
);
5936 zbuf
= umem_alloc(1024, UMEM_NOFAIL
);
5938 ztest_get_zdb_bin(bin
, len
);
5941 "%s -bcc%s%s -G -d -U %s %s",
5943 ztest_opts
.zo_verbose
>= 3 ? "s" : "",
5944 ztest_opts
.zo_verbose
>= 4 ? "v" : "",
5948 if (ztest_opts
.zo_verbose
>= 5)
5949 (void) printf("Executing %s\n", strstr(zdb
, "zdb "));
5951 fp
= popen(zdb
, "r");
5953 while (fgets(zbuf
, 1024, fp
) != NULL
)
5954 if (ztest_opts
.zo_verbose
>= 3)
5955 (void) printf("%s", zbuf
);
5957 status
= pclose(fp
);
5962 ztest_dump_core
= 0;
5963 if (WIFEXITED(status
))
5964 fatal(0, "'%s' exit code %d", zdb
, WEXITSTATUS(status
));
5966 fatal(0, "'%s' died with signal %d", zdb
, WTERMSIG(status
));
5968 umem_free(bin
, len
);
5969 umem_free(zdb
, len
);
5970 umem_free(zbuf
, 1024);
5974 ztest_walk_pool_directory(char *header
)
5978 if (ztest_opts
.zo_verbose
>= 6)
5979 (void) printf("%s\n", header
);
5981 mutex_enter(&spa_namespace_lock
);
5982 while ((spa
= spa_next(spa
)) != NULL
)
5983 if (ztest_opts
.zo_verbose
>= 6)
5984 (void) printf("\t%s\n", spa_name(spa
));
5985 mutex_exit(&spa_namespace_lock
);
5989 ztest_spa_import_export(char *oldname
, char *newname
)
5991 nvlist_t
*config
, *newconfig
;
5996 if (ztest_opts
.zo_verbose
>= 4) {
5997 (void) printf("import/export: old = %s, new = %s\n",
6002 * Clean up from previous runs.
6004 (void) spa_destroy(newname
);
6007 * Get the pool's configuration and guid.
6009 VERIFY3U(0, ==, spa_open(oldname
, &spa
, FTAG
));
6012 * Kick off a scrub to tickle scrub/export races.
6014 if (ztest_random(2) == 0)
6015 (void) spa_scan(spa
, POOL_SCAN_SCRUB
);
6017 pool_guid
= spa_guid(spa
);
6018 spa_close(spa
, FTAG
);
6020 ztest_walk_pool_directory("pools before export");
6025 VERIFY3U(0, ==, spa_export(oldname
, &config
, B_FALSE
, B_FALSE
));
6027 ztest_walk_pool_directory("pools after export");
6032 newconfig
= spa_tryimport(config
);
6033 ASSERT(newconfig
!= NULL
);
6034 nvlist_free(newconfig
);
6037 * Import it under the new name.
6039 error
= spa_import(newname
, config
, NULL
, 0);
6041 dump_nvlist(config
, 0);
6042 fatal(B_FALSE
, "couldn't import pool %s as %s: error %u",
6043 oldname
, newname
, error
);
6046 ztest_walk_pool_directory("pools after import");
6049 * Try to import it again -- should fail with EEXIST.
6051 VERIFY3U(EEXIST
, ==, spa_import(newname
, config
, NULL
, 0));
6054 * Try to import it under a different name -- should fail with EEXIST.
6056 VERIFY3U(EEXIST
, ==, spa_import(oldname
, config
, NULL
, 0));
6059 * Verify that the pool is no longer visible under the old name.
6061 VERIFY3U(ENOENT
, ==, spa_open(oldname
, &spa
, FTAG
));
6064 * Verify that we can open and close the pool using the new name.
6066 VERIFY3U(0, ==, spa_open(newname
, &spa
, FTAG
));
6067 ASSERT(pool_guid
== spa_guid(spa
));
6068 spa_close(spa
, FTAG
);
6070 nvlist_free(config
);
6074 ztest_resume(spa_t
*spa
)
6076 if (spa_suspended(spa
) && ztest_opts
.zo_verbose
>= 6)
6077 (void) printf("resuming from suspended state\n");
6078 spa_vdev_state_enter(spa
, SCL_NONE
);
6079 vdev_clear(spa
, NULL
);
6080 (void) spa_vdev_state_exit(spa
, NULL
, 0);
6081 (void) zio_resume(spa
);
6085 ztest_resume_thread(void *arg
)
6089 while (!ztest_exiting
) {
6090 if (spa_suspended(spa
))
6092 (void) poll(NULL
, 0, 100);
6095 * Periodically change the zfs_compressed_arc_enabled setting.
6097 if (ztest_random(10) == 0)
6098 zfs_compressed_arc_enabled
= ztest_random(2);
6101 * Periodically change the zfs_abd_scatter_enabled setting.
6103 if (ztest_random(10) == 0)
6104 zfs_abd_scatter_enabled
= ztest_random(2);
6116 ztest_deadman_alarm(int sig
)
6118 fatal(0, "failed to complete within %d seconds of deadline", GRACE
);
6123 ztest_execute(int test
, ztest_info_t
*zi
, uint64_t id
)
6125 ztest_ds_t
*zd
= &ztest_ds
[id
% ztest_opts
.zo_datasets
];
6126 ztest_shared_callstate_t
*zc
= ZTEST_GET_SHARED_CALLSTATE(test
);
6127 hrtime_t functime
= gethrtime();
6130 for (i
= 0; i
< zi
->zi_iters
; i
++)
6131 zi
->zi_func(zd
, id
);
6133 functime
= gethrtime() - functime
;
6135 atomic_add_64(&zc
->zc_count
, 1);
6136 atomic_add_64(&zc
->zc_time
, functime
);
6138 if (ztest_opts
.zo_verbose
>= 4)
6139 (void) printf("%6.2f sec in %s\n",
6140 (double)functime
/ NANOSEC
, zi
->zi_funcname
);
6144 ztest_thread(void *arg
)
6147 uint64_t id
= (uintptr_t)arg
;
6148 ztest_shared_t
*zs
= ztest_shared
;
6152 ztest_shared_callstate_t
*zc
;
6154 while ((now
= gethrtime()) < zs
->zs_thread_stop
) {
6156 * See if it's time to force a crash.
6158 if (now
> zs
->zs_thread_kill
)
6162 * If we're getting ENOSPC with some regularity, stop.
6164 if (zs
->zs_enospc_count
> 10)
6168 * Pick a random function to execute.
6170 rand
= ztest_random(ZTEST_FUNCS
);
6171 zi
= &ztest_info
[rand
];
6172 zc
= ZTEST_GET_SHARED_CALLSTATE(rand
);
6173 call_next
= zc
->zc_next
;
6175 if (now
>= call_next
&&
6176 atomic_cas_64(&zc
->zc_next
, call_next
, call_next
+
6177 ztest_random(2 * zi
->zi_interval
[0] + 1)) == call_next
) {
6178 ztest_execute(rand
, zi
, id
);
6188 ztest_dataset_name(char *dsname
, char *pool
, int d
)
6190 (void) snprintf(dsname
, ZFS_MAX_DATASET_NAME_LEN
, "%s/ds_%d", pool
, d
);
6194 ztest_dataset_destroy(int d
)
6196 char name
[ZFS_MAX_DATASET_NAME_LEN
];
6199 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
6201 if (ztest_opts
.zo_verbose
>= 3)
6202 (void) printf("Destroying %s to free up space\n", name
);
6205 * Cleanup any non-standard clones and snapshots. In general,
6206 * ztest thread t operates on dataset (t % zopt_datasets),
6207 * so there may be more than one thing to clean up.
6209 for (t
= d
; t
< ztest_opts
.zo_threads
;
6210 t
+= ztest_opts
.zo_datasets
)
6211 ztest_dsl_dataset_cleanup(name
, t
);
6213 (void) dmu_objset_find(name
, ztest_objset_destroy_cb
, NULL
,
6214 DS_FIND_SNAPSHOTS
| DS_FIND_CHILDREN
);
6218 ztest_dataset_dirobj_verify(ztest_ds_t
*zd
)
6220 uint64_t usedobjs
, dirobjs
, scratch
;
6223 * ZTEST_DIROBJ is the object directory for the entire dataset.
6224 * Therefore, the number of objects in use should equal the
6225 * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
6226 * If not, we have an object leak.
6228 * Note that we can only check this in ztest_dataset_open(),
6229 * when the open-context and syncing-context values agree.
6230 * That's because zap_count() returns the open-context value,
6231 * while dmu_objset_space() returns the rootbp fill count.
6233 VERIFY3U(0, ==, zap_count(zd
->zd_os
, ZTEST_DIROBJ
, &dirobjs
));
6234 dmu_objset_space(zd
->zd_os
, &scratch
, &scratch
, &usedobjs
, &scratch
);
6235 ASSERT3U(dirobjs
+ 1, ==, usedobjs
);
6239 ztest_dataset_open(int d
)
6241 ztest_ds_t
*zd
= &ztest_ds
[d
];
6242 uint64_t committed_seq
= ZTEST_GET_SHARED_DS(d
)->zd_seq
;
6245 char name
[ZFS_MAX_DATASET_NAME_LEN
];
6248 ztest_dataset_name(name
, ztest_opts
.zo_pool
, d
);
6250 (void) rw_rdlock(&ztest_name_lock
);
6252 error
= ztest_dataset_create(name
);
6253 if (error
== ENOSPC
) {
6254 (void) rw_unlock(&ztest_name_lock
);
6255 ztest_record_enospc(FTAG
);
6258 ASSERT(error
== 0 || error
== EEXIST
);
6260 VERIFY0(dmu_objset_own(name
, DMU_OST_OTHER
, B_FALSE
, zd
, &os
));
6261 (void) rw_unlock(&ztest_name_lock
);
6263 ztest_zd_init(zd
, ZTEST_GET_SHARED_DS(d
), os
);
6265 zilog
= zd
->zd_zilog
;
6267 if (zilog
->zl_header
->zh_claim_lr_seq
!= 0 &&
6268 zilog
->zl_header
->zh_claim_lr_seq
< committed_seq
)
6269 fatal(0, "missing log records: claimed %llu < committed %llu",
6270 zilog
->zl_header
->zh_claim_lr_seq
, committed_seq
);
6272 ztest_dataset_dirobj_verify(zd
);
6274 zil_replay(os
, zd
, ztest_replay_vector
);
6276 ztest_dataset_dirobj_verify(zd
);
6278 if (ztest_opts
.zo_verbose
>= 6)
6279 (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
6281 (u_longlong_t
)zilog
->zl_parse_blk_count
,
6282 (u_longlong_t
)zilog
->zl_parse_lr_count
,
6283 (u_longlong_t
)zilog
->zl_replaying_seq
);
6285 zilog
= zil_open(os
, ztest_get_data
);
6287 if (zilog
->zl_replaying_seq
!= 0 &&
6288 zilog
->zl_replaying_seq
< committed_seq
)
6289 fatal(0, "missing log records: replayed %llu < committed %llu",
6290 zilog
->zl_replaying_seq
, committed_seq
);
6296 ztest_dataset_close(int d
)
6298 ztest_ds_t
*zd
= &ztest_ds
[d
];
6300 zil_close(zd
->zd_zilog
);
6301 dmu_objset_disown(zd
->zd_os
, zd
);
6307 * Kick off threads to run tests on all datasets in parallel.
6310 ztest_run(ztest_shared_t
*zs
)
6315 kthread_t
*resume_thread
;
6320 ztest_exiting
= B_FALSE
;
6323 * Initialize parent/child shared state.
6325 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6326 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6328 zs
->zs_thread_start
= gethrtime();
6329 zs
->zs_thread_stop
=
6330 zs
->zs_thread_start
+ ztest_opts
.zo_passtime
* NANOSEC
;
6331 zs
->zs_thread_stop
= MIN(zs
->zs_thread_stop
, zs
->zs_proc_stop
);
6332 zs
->zs_thread_kill
= zs
->zs_thread_stop
;
6333 if (ztest_random(100) < ztest_opts
.zo_killrate
) {
6334 zs
->zs_thread_kill
-=
6335 ztest_random(ztest_opts
.zo_passtime
* NANOSEC
);
6338 mutex_init(&zcl
.zcl_callbacks_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6340 list_create(&zcl
.zcl_callbacks
, sizeof (ztest_cb_data_t
),
6341 offsetof(ztest_cb_data_t
, zcd_node
));
6346 kernel_init(FREAD
| FWRITE
);
6347 VERIFY0(spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6348 spa
->spa_debug
= B_TRUE
;
6349 metaslab_preload_limit
= ztest_random(20) + 1;
6352 dmu_objset_stats_t dds
;
6353 VERIFY0(dmu_objset_own(ztest_opts
.zo_pool
,
6354 DMU_OST_ANY
, B_TRUE
, FTAG
, &os
));
6355 dsl_pool_config_enter(dmu_objset_pool(os
), FTAG
);
6356 dmu_objset_fast_stat(os
, &dds
);
6357 dsl_pool_config_exit(dmu_objset_pool(os
), FTAG
);
6358 zs
->zs_guid
= dds
.dds_guid
;
6359 dmu_objset_disown(os
, FTAG
);
6361 spa
->spa_dedup_ditto
= 2 * ZIO_DEDUPDITTO_MIN
;
6364 * We don't expect the pool to suspend unless maxfaults == 0,
6365 * in which case ztest_fault_inject() temporarily takes away
6366 * the only valid replica.
6368 if (MAXFAULTS() == 0)
6369 spa
->spa_failmode
= ZIO_FAILURE_MODE_WAIT
;
6371 spa
->spa_failmode
= ZIO_FAILURE_MODE_PANIC
;
6374 * Create a thread to periodically resume suspended I/O.
6376 VERIFY3P((resume_thread
= zk_thread_create(NULL
, 0,
6377 (thread_func_t
)ztest_resume_thread
, spa
, 0, NULL
, TS_RUN
, 0,
6378 PTHREAD_CREATE_JOINABLE
)), !=, NULL
);
6382 * Set a deadman alarm to abort() if we hang.
6384 signal(SIGALRM
, ztest_deadman_alarm
);
6385 alarm((zs
->zs_thread_stop
- zs
->zs_thread_start
) / NANOSEC
+ GRACE
);
6389 * Verify that we can safely inquire about about any object,
6390 * whether it's allocated or not. To make it interesting,
6391 * we probe a 5-wide window around each power of two.
6392 * This hits all edge cases, including zero and the max.
6394 for (t
= 0; t
< 64; t
++) {
6395 for (d
= -5; d
<= 5; d
++) {
6396 error
= dmu_object_info(spa
->spa_meta_objset
,
6397 (1ULL << t
) + d
, NULL
);
6398 ASSERT(error
== 0 || error
== ENOENT
||
6404 * If we got any ENOSPC errors on the previous run, destroy something.
6406 if (zs
->zs_enospc_count
!= 0) {
6407 int d
= ztest_random(ztest_opts
.zo_datasets
);
6408 ztest_dataset_destroy(d
);
6410 zs
->zs_enospc_count
= 0;
6412 tid
= umem_zalloc(ztest_opts
.zo_threads
* sizeof (kt_did_t
),
6415 if (ztest_opts
.zo_verbose
>= 4)
6416 (void) printf("starting main threads...\n");
6419 * Kick off all the tests that run in parallel.
6421 for (t
= 0; t
< ztest_opts
.zo_threads
; t
++) {
6424 if (t
< ztest_opts
.zo_datasets
&&
6425 ztest_dataset_open(t
) != 0) {
6427 ztest_opts
.zo_threads
* sizeof (kt_did_t
));
6431 VERIFY3P(thread
= zk_thread_create(NULL
, 0,
6432 (thread_func_t
)ztest_thread
,
6433 (void *)(uintptr_t)t
, 0, NULL
, TS_RUN
, 0,
6434 PTHREAD_CREATE_JOINABLE
), !=, NULL
);
6435 tid
[t
] = thread
->t_tid
;
6439 * Wait for all of the tests to complete. We go in reverse order
6440 * so we don't close datasets while threads are still using them.
6442 for (t
= ztest_opts
.zo_threads
- 1; t
>= 0; t
--) {
6443 thread_join(tid
[t
]);
6444 if (t
< ztest_opts
.zo_datasets
)
6445 ztest_dataset_close(t
);
6448 txg_wait_synced(spa_get_dsl(spa
), 0);
6450 zs
->zs_alloc
= metaslab_class_get_alloc(spa_normal_class(spa
));
6451 zs
->zs_space
= metaslab_class_get_space(spa_normal_class(spa
));
6453 umem_free(tid
, ztest_opts
.zo_threads
* sizeof (kt_did_t
));
6455 /* Kill the resume thread */
6456 ztest_exiting
= B_TRUE
;
6457 thread_join(resume_thread
->t_tid
);
6461 * Right before closing the pool, kick off a bunch of async I/O;
6462 * spa_close() should wait for it to complete.
6464 for (object
= 1; object
< 50; object
++) {
6465 dmu_prefetch(spa
->spa_meta_objset
, object
, 0, 0, 1ULL << 20,
6466 ZIO_PRIORITY_SYNC_READ
);
6469 /* Verify that at least one commit cb was called in a timely fashion */
6470 if (zc_cb_counter
>= ZTEST_COMMIT_CB_MIN_REG
)
6471 VERIFY0(zc_min_txg_delay
);
6473 spa_close(spa
, FTAG
);
6476 * Verify that we can loop over all pools.
6478 mutex_enter(&spa_namespace_lock
);
6479 for (spa
= spa_next(NULL
); spa
!= NULL
; spa
= spa_next(spa
))
6480 if (ztest_opts
.zo_verbose
> 3)
6481 (void) printf("spa_next: found %s\n", spa_name(spa
));
6482 mutex_exit(&spa_namespace_lock
);
6485 * Verify that we can export the pool and reimport it under a
6488 if ((ztest_random(2) == 0) && !ztest_opts
.zo_mmp_test
) {
6489 char name
[ZFS_MAX_DATASET_NAME_LEN
];
6490 (void) snprintf(name
, sizeof (name
), "%s_import",
6491 ztest_opts
.zo_pool
);
6492 ztest_spa_import_export(ztest_opts
.zo_pool
, name
);
6493 ztest_spa_import_export(name
, ztest_opts
.zo_pool
);
6498 list_destroy(&zcl
.zcl_callbacks
);
6499 mutex_destroy(&zcl
.zcl_callbacks_lock
);
6500 (void) rwlock_destroy(&ztest_name_lock
);
6501 mutex_destroy(&ztest_vdev_lock
);
6507 ztest_ds_t
*zd
= &ztest_ds
[0];
6511 if (ztest_opts
.zo_verbose
>= 3)
6512 (void) printf("testing spa_freeze()...\n");
6514 kernel_init(FREAD
| FWRITE
);
6515 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6516 VERIFY3U(0, ==, ztest_dataset_open(0));
6517 spa
->spa_debug
= B_TRUE
;
6521 * Force the first log block to be transactionally allocated.
6522 * We have to do this before we freeze the pool -- otherwise
6523 * the log chain won't be anchored.
6525 while (BP_IS_HOLE(&zd
->zd_zilog
->zl_header
->zh_log
)) {
6526 ztest_dmu_object_alloc_free(zd
, 0);
6527 zil_commit(zd
->zd_zilog
, 0);
6530 txg_wait_synced(spa_get_dsl(spa
), 0);
6533 * Freeze the pool. This stops spa_sync() from doing anything,
6534 * so that the only way to record changes from now on is the ZIL.
6539 * Because it is hard to predict how much space a write will actually
6540 * require beforehand, we leave ourselves some fudge space to write over
6543 uint64_t capacity
= metaslab_class_get_space(spa_normal_class(spa
)) / 2;
6546 * Run tests that generate log records but don't alter the pool config
6547 * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
6548 * We do a txg_wait_synced() after each iteration to force the txg
6549 * to increase well beyond the last synced value in the uberblock.
6550 * The ZIL should be OK with that.
6552 * Run a random number of times less than zo_maxloops and ensure we do
6553 * not run out of space on the pool.
6555 while (ztest_random(10) != 0 &&
6556 numloops
++ < ztest_opts
.zo_maxloops
&&
6557 metaslab_class_get_alloc(spa_normal_class(spa
)) < capacity
) {
6559 ztest_od_init(&od
, 0, FTAG
, 0, DMU_OT_UINT64_OTHER
, 0, 0, 0);
6560 VERIFY0(ztest_object_init(zd
, &od
, sizeof (od
), B_FALSE
));
6561 ztest_io(zd
, od
.od_object
,
6562 ztest_random(ZTEST_RANGE_LOCKS
) << SPA_MAXBLOCKSHIFT
);
6563 txg_wait_synced(spa_get_dsl(spa
), 0);
6567 * Commit all of the changes we just generated.
6569 zil_commit(zd
->zd_zilog
, 0);
6570 txg_wait_synced(spa_get_dsl(spa
), 0);
6573 * Close our dataset and close the pool.
6575 ztest_dataset_close(0);
6576 spa_close(spa
, FTAG
);
6580 * Open and close the pool and dataset to induce log replay.
6582 kernel_init(FREAD
| FWRITE
);
6583 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6584 ASSERT(spa_freeze_txg(spa
) == UINT64_MAX
);
6585 VERIFY3U(0, ==, ztest_dataset_open(0));
6586 ztest_dataset_close(0);
6588 spa
->spa_debug
= B_TRUE
;
6590 txg_wait_synced(spa_get_dsl(spa
), 0);
6591 ztest_reguid(NULL
, 0);
6593 spa_close(spa
, FTAG
);
6598 print_time(hrtime_t t
, char *timebuf
)
6600 hrtime_t s
= t
/ NANOSEC
;
6601 hrtime_t m
= s
/ 60;
6602 hrtime_t h
= m
/ 60;
6603 hrtime_t d
= h
/ 24;
6612 (void) sprintf(timebuf
,
6613 "%llud%02lluh%02llum%02llus", d
, h
, m
, s
);
6615 (void) sprintf(timebuf
, "%lluh%02llum%02llus", h
, m
, s
);
6617 (void) sprintf(timebuf
, "%llum%02llus", m
, s
);
6619 (void) sprintf(timebuf
, "%llus", s
);
6623 make_random_props(void)
6627 VERIFY(nvlist_alloc(&props
, NV_UNIQUE_NAME
, 0) == 0);
6628 if (ztest_random(2) == 0)
6630 VERIFY(nvlist_add_uint64(props
, "autoreplace", 1) == 0);
6636 * Import a storage pool with the given name.
6639 ztest_import(ztest_shared_t
*zs
)
6641 libzfs_handle_t
*hdl
;
6642 importargs_t args
= { 0 };
6644 nvlist_t
*cfg
= NULL
;
6646 char *searchdirs
[nsearch
];
6647 char *name
= ztest_opts
.zo_pool
;
6648 int flags
= ZFS_IMPORT_MISSING_LOG
;
6651 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6652 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6654 kernel_init(FREAD
| FWRITE
);
6655 hdl
= libzfs_init();
6657 searchdirs
[0] = ztest_opts
.zo_dir
;
6658 args
.paths
= nsearch
;
6659 args
.path
= searchdirs
;
6660 args
.can_be_active
= B_FALSE
;
6662 error
= zpool_tryimport(hdl
, name
, &cfg
, &args
);
6664 (void) fatal(0, "No pools found\n");
6666 VERIFY0(spa_import(name
, cfg
, NULL
, flags
));
6667 VERIFY0(spa_open(name
, &spa
, FTAG
));
6668 zs
->zs_metaslab_sz
=
6669 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6670 spa_close(spa
, FTAG
);
6675 if (!ztest_opts
.zo_mmp_test
) {
6676 ztest_run_zdb(ztest_opts
.zo_pool
);
6678 ztest_run_zdb(ztest_opts
.zo_pool
);
6681 (void) rwlock_destroy(&ztest_name_lock
);
6682 mutex_destroy(&ztest_vdev_lock
);
6686 * Create a storage pool with the given name and initial vdev size.
6687 * Then test spa_freeze() functionality.
6690 ztest_init(ztest_shared_t
*zs
)
6693 nvlist_t
*nvroot
, *props
;
6696 mutex_init(&ztest_vdev_lock
, NULL
, MUTEX_DEFAULT
, NULL
);
6697 VERIFY(rwlock_init(&ztest_name_lock
, USYNC_THREAD
, NULL
) == 0);
6699 kernel_init(FREAD
| FWRITE
);
6702 * Create the storage pool.
6704 (void) spa_destroy(ztest_opts
.zo_pool
);
6705 ztest_shared
->zs_vdev_next_leaf
= 0;
6707 zs
->zs_mirrors
= ztest_opts
.zo_mirrors
;
6708 nvroot
= make_vdev_root(NULL
, NULL
, NULL
, ztest_opts
.zo_vdev_size
, 0,
6709 0, ztest_opts
.zo_raidz
, zs
->zs_mirrors
, 1);
6710 props
= make_random_props();
6711 for (i
= 0; i
< SPA_FEATURES
; i
++) {
6713 VERIFY3S(-1, !=, asprintf(&buf
, "feature@%s",
6714 spa_feature_table
[i
].fi_uname
));
6715 VERIFY3U(0, ==, nvlist_add_uint64(props
, buf
, 0));
6718 VERIFY3U(0, ==, spa_create(ztest_opts
.zo_pool
, nvroot
, props
, NULL
));
6719 nvlist_free(nvroot
);
6722 VERIFY3U(0, ==, spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
));
6723 zs
->zs_metaslab_sz
=
6724 1ULL << spa
->spa_root_vdev
->vdev_child
[0]->vdev_ms_shift
;
6725 spa_close(spa
, FTAG
);
6729 if (!ztest_opts
.zo_mmp_test
) {
6730 ztest_run_zdb(ztest_opts
.zo_pool
);
6732 ztest_run_zdb(ztest_opts
.zo_pool
);
6735 (void) rwlock_destroy(&ztest_name_lock
);
6736 mutex_destroy(&ztest_vdev_lock
);
6742 static char ztest_name_data
[] = "/tmp/ztest.data.XXXXXX";
6744 ztest_fd_data
= mkstemp(ztest_name_data
);
6745 ASSERT3S(ztest_fd_data
, >=, 0);
6746 (void) unlink(ztest_name_data
);
6750 shared_data_size(ztest_shared_hdr_t
*hdr
)
6754 size
= hdr
->zh_hdr_size
;
6755 size
+= hdr
->zh_opts_size
;
6756 size
+= hdr
->zh_size
;
6757 size
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6758 size
+= hdr
->zh_ds_size
* hdr
->zh_ds_count
;
6767 ztest_shared_hdr_t
*hdr
;
6769 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6770 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6771 ASSERT(hdr
!= MAP_FAILED
);
6773 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, sizeof (ztest_shared_hdr_t
)));
6775 hdr
->zh_hdr_size
= sizeof (ztest_shared_hdr_t
);
6776 hdr
->zh_opts_size
= sizeof (ztest_shared_opts_t
);
6777 hdr
->zh_size
= sizeof (ztest_shared_t
);
6778 hdr
->zh_stats_size
= sizeof (ztest_shared_callstate_t
);
6779 hdr
->zh_stats_count
= ZTEST_FUNCS
;
6780 hdr
->zh_ds_size
= sizeof (ztest_shared_ds_t
);
6781 hdr
->zh_ds_count
= ztest_opts
.zo_datasets
;
6783 size
= shared_data_size(hdr
);
6784 VERIFY3U(0, ==, ftruncate(ztest_fd_data
, size
));
6786 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6793 ztest_shared_hdr_t
*hdr
;
6796 hdr
= (void *)mmap(0, P2ROUNDUP(sizeof (*hdr
), getpagesize()),
6797 PROT_READ
, MAP_SHARED
, ztest_fd_data
, 0);
6798 ASSERT(hdr
!= MAP_FAILED
);
6800 size
= shared_data_size(hdr
);
6802 (void) munmap((caddr_t
)hdr
, P2ROUNDUP(sizeof (*hdr
), getpagesize()));
6803 hdr
= ztest_shared_hdr
= (void *)mmap(0, P2ROUNDUP(size
, getpagesize()),
6804 PROT_READ
| PROT_WRITE
, MAP_SHARED
, ztest_fd_data
, 0);
6805 ASSERT(hdr
!= MAP_FAILED
);
6806 buf
= (uint8_t *)hdr
;
6808 offset
= hdr
->zh_hdr_size
;
6809 ztest_shared_opts
= (void *)&buf
[offset
];
6810 offset
+= hdr
->zh_opts_size
;
6811 ztest_shared
= (void *)&buf
[offset
];
6812 offset
+= hdr
->zh_size
;
6813 ztest_shared_callstate
= (void *)&buf
[offset
];
6814 offset
+= hdr
->zh_stats_size
* hdr
->zh_stats_count
;
6815 ztest_shared_ds
= (void *)&buf
[offset
];
6819 exec_child(char *cmd
, char *libpath
, boolean_t ignorekill
, int *statusp
)
6823 char *cmdbuf
= NULL
;
6828 cmdbuf
= umem_alloc(MAXPATHLEN
, UMEM_NOFAIL
);
6829 (void) strlcpy(cmdbuf
, getexecname(), MAXPATHLEN
);
6834 fatal(1, "fork failed");
6836 if (pid
== 0) { /* child */
6837 char *emptyargv
[2] = { cmd
, NULL
};
6838 char fd_data_str
[12];
6840 struct rlimit rl
= { 1024, 1024 };
6841 (void) setrlimit(RLIMIT_NOFILE
, &rl
);
6843 (void) close(ztest_fd_rand
);
6844 VERIFY(11 >= snprintf(fd_data_str
, 12, "%d", ztest_fd_data
));
6845 VERIFY(0 == setenv("ZTEST_FD_DATA", fd_data_str
, 1));
6847 (void) enable_extended_FILE_stdio(-1, -1);
6848 if (libpath
!= NULL
)
6849 VERIFY(0 == setenv("LD_LIBRARY_PATH", libpath
, 1));
6850 (void) execv(cmd
, emptyargv
);
6851 ztest_dump_core
= B_FALSE
;
6852 fatal(B_TRUE
, "exec failed: %s", cmd
);
6855 if (cmdbuf
!= NULL
) {
6856 umem_free(cmdbuf
, MAXPATHLEN
);
6860 while (waitpid(pid
, &status
, 0) != pid
)
6862 if (statusp
!= NULL
)
6865 if (WIFEXITED(status
)) {
6866 if (WEXITSTATUS(status
) != 0) {
6867 (void) fprintf(stderr
, "child exited with code %d\n",
6868 WEXITSTATUS(status
));
6872 } else if (WIFSIGNALED(status
)) {
6873 if (!ignorekill
|| WTERMSIG(status
) != SIGKILL
) {
6874 (void) fprintf(stderr
, "child died with signal %d\n",
6880 (void) fprintf(stderr
, "something strange happened to child\n");
6887 ztest_run_init(void)
6891 ztest_shared_t
*zs
= ztest_shared
;
6894 * Blow away any existing copy of zpool.cache
6896 (void) remove(spa_config_path
);
6898 if (ztest_opts
.zo_init
== 0) {
6899 if (ztest_opts
.zo_verbose
>= 1)
6900 (void) printf("Importing pool %s\n",
6901 ztest_opts
.zo_pool
);
6907 * Create and initialize our storage pool.
6909 for (i
= 1; i
<= ztest_opts
.zo_init
; i
++) {
6910 bzero(zs
, sizeof (ztest_shared_t
));
6911 if (ztest_opts
.zo_verbose
>= 3 &&
6912 ztest_opts
.zo_init
!= 1) {
6913 (void) printf("ztest_init(), pass %d\n", i
);
6920 main(int argc
, char **argv
)
6928 ztest_shared_callstate_t
*zc
;
6935 char *fd_data_str
= getenv("ZTEST_FD_DATA");
6936 struct sigaction action
;
6938 (void) setvbuf(stdout
, NULL
, _IOLBF
, 0);
6940 dprintf_setup(&argc
, argv
);
6942 action
.sa_handler
= sig_handler
;
6943 sigemptyset(&action
.sa_mask
);
6944 action
.sa_flags
= 0;
6946 if (sigaction(SIGSEGV
, &action
, NULL
) < 0) {
6947 (void) fprintf(stderr
, "ztest: cannot catch SIGSEGV: %s.\n",
6952 if (sigaction(SIGABRT
, &action
, NULL
) < 0) {
6953 (void) fprintf(stderr
, "ztest: cannot catch SIGABRT: %s.\n",
6958 ztest_fd_rand
= open("/dev/urandom", O_RDONLY
);
6959 ASSERT3S(ztest_fd_rand
, >=, 0);
6962 process_options(argc
, argv
);
6967 bcopy(&ztest_opts
, ztest_shared_opts
,
6968 sizeof (*ztest_shared_opts
));
6970 ztest_fd_data
= atoi(fd_data_str
);
6972 bcopy(ztest_shared_opts
, &ztest_opts
, sizeof (ztest_opts
));
6974 ASSERT3U(ztest_opts
.zo_datasets
, ==, ztest_shared_hdr
->zh_ds_count
);
6976 /* Override location of zpool.cache */
6977 VERIFY(asprintf((char **)&spa_config_path
, "%s/zpool.cache",
6978 ztest_opts
.zo_dir
) != -1);
6980 ztest_ds
= umem_alloc(ztest_opts
.zo_datasets
* sizeof (ztest_ds_t
),
6985 metaslab_gang_bang
= ztest_opts
.zo_metaslab_gang_bang
;
6986 metaslab_df_alloc_threshold
=
6987 zs
->zs_metaslab_df_alloc_threshold
;
6996 hasalt
= (strlen(ztest_opts
.zo_alt_ztest
) != 0);
6998 if (ztest_opts
.zo_verbose
>= 1) {
6999 (void) printf("%llu vdevs, %d datasets, %d threads,"
7000 " %llu seconds...\n",
7001 (u_longlong_t
)ztest_opts
.zo_vdevs
,
7002 ztest_opts
.zo_datasets
,
7003 ztest_opts
.zo_threads
,
7004 (u_longlong_t
)ztest_opts
.zo_time
);
7007 cmd
= umem_alloc(MAXNAMELEN
, UMEM_NOFAIL
);
7008 (void) strlcpy(cmd
, getexecname(), MAXNAMELEN
);
7010 zs
->zs_do_init
= B_TRUE
;
7011 if (strlen(ztest_opts
.zo_alt_ztest
) != 0) {
7012 if (ztest_opts
.zo_verbose
>= 1) {
7013 (void) printf("Executing older ztest for "
7014 "initialization: %s\n", ztest_opts
.zo_alt_ztest
);
7016 VERIFY(!exec_child(ztest_opts
.zo_alt_ztest
,
7017 ztest_opts
.zo_alt_libpath
, B_FALSE
, NULL
));
7019 VERIFY(!exec_child(NULL
, NULL
, B_FALSE
, NULL
));
7021 zs
->zs_do_init
= B_FALSE
;
7023 zs
->zs_proc_start
= gethrtime();
7024 zs
->zs_proc_stop
= zs
->zs_proc_start
+ ztest_opts
.zo_time
* NANOSEC
;
7026 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
7027 zi
= &ztest_info
[f
];
7028 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
7029 if (zs
->zs_proc_start
+ zi
->zi_interval
[0] > zs
->zs_proc_stop
)
7030 zc
->zc_next
= UINT64_MAX
;
7032 zc
->zc_next
= zs
->zs_proc_start
+
7033 ztest_random(2 * zi
->zi_interval
[0] + 1);
7037 * Run the tests in a loop. These tests include fault injection
7038 * to verify that self-healing data works, and forced crashes
7039 * to verify that we never lose on-disk consistency.
7041 while (gethrtime() < zs
->zs_proc_stop
) {
7046 * Initialize the workload counters for each function.
7048 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
7049 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
7054 /* Set the allocation switch size */
7055 zs
->zs_metaslab_df_alloc_threshold
=
7056 ztest_random(zs
->zs_metaslab_sz
/ 4) + 1;
7058 if (!hasalt
|| ztest_random(2) == 0) {
7059 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
7060 (void) printf("Executing newer ztest: %s\n",
7064 killed
= exec_child(cmd
, NULL
, B_TRUE
, &status
);
7066 if (hasalt
&& ztest_opts
.zo_verbose
>= 1) {
7067 (void) printf("Executing older ztest: %s\n",
7068 ztest_opts
.zo_alt_ztest
);
7071 killed
= exec_child(ztest_opts
.zo_alt_ztest
,
7072 ztest_opts
.zo_alt_libpath
, B_TRUE
, &status
);
7079 if (ztest_opts
.zo_verbose
>= 1) {
7080 hrtime_t now
= gethrtime();
7082 now
= MIN(now
, zs
->zs_proc_stop
);
7083 print_time(zs
->zs_proc_stop
- now
, timebuf
);
7084 nicenum(zs
->zs_space
, numbuf
);
7086 (void) printf("Pass %3d, %8s, %3llu ENOSPC, "
7087 "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
7089 WIFEXITED(status
) ? "Complete" : "SIGKILL",
7090 (u_longlong_t
)zs
->zs_enospc_count
,
7091 100.0 * zs
->zs_alloc
/ zs
->zs_space
,
7093 100.0 * (now
- zs
->zs_proc_start
) /
7094 (ztest_opts
.zo_time
* NANOSEC
), timebuf
);
7097 if (ztest_opts
.zo_verbose
>= 2) {
7098 (void) printf("\nWorkload summary:\n\n");
7099 (void) printf("%7s %9s %s\n",
7100 "Calls", "Time", "Function");
7101 (void) printf("%7s %9s %s\n",
7102 "-----", "----", "--------");
7103 for (f
= 0; f
< ZTEST_FUNCS
; f
++) {
7104 zi
= &ztest_info
[f
];
7105 zc
= ZTEST_GET_SHARED_CALLSTATE(f
);
7106 print_time(zc
->zc_time
, timebuf
);
7107 (void) printf("%7llu %9s %s\n",
7108 (u_longlong_t
)zc
->zc_count
, timebuf
,
7111 (void) printf("\n");
7115 * It's possible that we killed a child during a rename test,
7116 * in which case we'll have a 'ztest_tmp' pool lying around
7117 * instead of 'ztest'. Do a blind rename in case this happened.
7120 if (spa_open(ztest_opts
.zo_pool
, &spa
, FTAG
) == 0) {
7121 spa_close(spa
, FTAG
);
7123 char tmpname
[ZFS_MAX_DATASET_NAME_LEN
];
7125 kernel_init(FREAD
| FWRITE
);
7126 (void) snprintf(tmpname
, sizeof (tmpname
), "%s_tmp",
7127 ztest_opts
.zo_pool
);
7128 (void) spa_rename(tmpname
, ztest_opts
.zo_pool
);
7132 if (!ztest_opts
.zo_mmp_test
)
7133 ztest_run_zdb(ztest_opts
.zo_pool
);
7136 if (ztest_opts
.zo_verbose
>= 1) {
7138 (void) printf("%d runs of older ztest: %s\n", older
,
7139 ztest_opts
.zo_alt_ztest
);
7140 (void) printf("%d runs of newer ztest: %s\n", newer
,
7143 (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
7144 kills
, iters
- kills
, (100.0 * kills
) / MAX(1, iters
));
7147 umem_free(cmd
, MAXNAMELEN
);