1/*
2 * CDDL HEADER START
3 *
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.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

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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]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26/*
27 * The objective of this program is to provide a DMU/ZAP/SPA stress test
28 * that runs entirely in userland, is easy to use, and easy to extend.
29 *
30 * The overall design of the ztest program is as follows:
31 *
32 * (1) For each major functional area (e.g. adding vdevs to a pool,
33 * creating and destroying datasets, reading and writing objects, etc)

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85#include <sys/wait.h>
86#include <sys/mman.h>
87#include <sys/resource.h>
88#include <sys/zio.h>
89#include <sys/zio_checksum.h>
90#include <sys/zio_compress.h>
91#include <sys/zil.h>
92#include <sys/vdev_impl.h>
93#include <sys/vdev_file.h>
94#include <sys/spa_impl.h>
95#include <sys/dsl_prop.h>
96#include <sys/refcount.h>
97#include <stdio.h>
98#include <stdio_ext.h>
99#include <stdlib.h>
100#include <unistd.h>
101#include <signal.h>

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122static uint64_t zopt_passtime = 60; /* 60 seconds */
123static uint64_t zopt_killrate = 70; /* 70% kill rate */
124static int zopt_verbose = 0;
125static int zopt_init = 1;
126static char *zopt_dir = "/tmp";
127static uint64_t zopt_time = 300; /* 5 minutes */
128static int zopt_maxfaults;
129
130typedef struct ztest_block_tag {
131 uint64_t bt_objset;
132 uint64_t bt_object;
133 uint64_t bt_offset;
134 uint64_t bt_txg;
135 uint64_t bt_thread;
136 uint64_t bt_seq;
137} ztest_block_tag_t;
138
139typedef struct ztest_args {
140 char za_pool[MAXNAMELEN];
141 spa_t *za_spa;
142 objset_t *za_os;
143 zilog_t *za_zilog;
144 thread_t za_thread;
145 uint64_t za_instance;
146 uint64_t za_random;
147 uint64_t za_diroff;
148 uint64_t za_diroff_shared;
149 uint64_t za_zil_seq;
150 hrtime_t za_start;
151 hrtime_t za_stop;
152 hrtime_t za_kill;
153 traverse_handle_t *za_th;
154 /*
155 * Thread-local variables can go here to aid debugging.
156 */
157 ztest_block_tag_t za_rbt;
158 ztest_block_tag_t za_wbt;
159 dmu_object_info_t za_doi;
160 dmu_buf_t *za_dbuf;
161} ztest_args_t;
162
163typedef void ztest_func_t(ztest_args_t *);
164
165/*
166 * Note: these aren't static because we want dladdr() to work.
167 */
168ztest_func_t ztest_dmu_read_write;
169ztest_func_t ztest_dmu_write_parallel;
170ztest_func_t ztest_dmu_object_alloc_free;
171ztest_func_t ztest_zap;
172ztest_func_t ztest_zap_parallel;
173ztest_func_t ztest_traverse;
174ztest_func_t ztest_dsl_prop_get_set;
175ztest_func_t ztest_dmu_objset_create_destroy;
176ztest_func_t ztest_dmu_snapshot_create_destroy;
177ztest_func_t ztest_spa_create_destroy;
178ztest_func_t ztest_fault_inject;
179ztest_func_t ztest_spa_rename;
180ztest_func_t ztest_vdev_attach_detach;
181ztest_func_t ztest_vdev_LUN_growth;
182ztest_func_t ztest_vdev_add_remove;
183ztest_func_t ztest_vdev_aux_add_remove;
184ztest_func_t ztest_scrub;
185
186typedef struct ztest_info {
187 ztest_func_t *zi_func; /* test function */
188 uint64_t zi_iters; /* iterations per execution */
189 uint64_t *zi_interval; /* execute every <interval> seconds */
190 uint64_t zi_calls; /* per-pass count */
191 uint64_t zi_call_time; /* per-pass time */
192 uint64_t zi_call_total; /* cumulative total */
193 uint64_t zi_call_target; /* target cumulative total */
194} ztest_info_t;
195
196uint64_t zopt_always = 0; /* all the time */
197uint64_t zopt_often = 1; /* every second */
198uint64_t zopt_sometimes = 10; /* every 10 seconds */
199uint64_t zopt_rarely = 60; /* every 60 seconds */
200
201ztest_info_t ztest_info[] = {
202 { ztest_dmu_read_write, 1, &zopt_always },
203 { ztest_dmu_write_parallel, 30, &zopt_always },
204 { ztest_dmu_object_alloc_free, 1, &zopt_always },
205 { ztest_zap, 30, &zopt_always },
206 { ztest_zap_parallel, 100, &zopt_always },
207 { ztest_traverse, 1, &zopt_often },
208 { ztest_dsl_prop_get_set, 1, &zopt_sometimes },
209 { ztest_dmu_objset_create_destroy, 1, &zopt_sometimes },
210 { ztest_dmu_snapshot_create_destroy, 1, &zopt_sometimes },
211 { ztest_spa_create_destroy, 1, &zopt_sometimes },
212 { ztest_fault_inject, 1, &zopt_sometimes },
213 { ztest_spa_rename, 1, &zopt_rarely },
214 { ztest_vdev_attach_detach, 1, &zopt_rarely },
215 { ztest_vdev_LUN_growth, 1, &zopt_rarely },
216 { ztest_vdev_add_remove, 1, &zopt_vdevtime },
217 { ztest_vdev_aux_add_remove, 1, &zopt_vdevtime },
218 { ztest_scrub, 1, &zopt_vdevtime },
219};
220
221#define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
222
223#define ZTEST_SYNC_LOCKS 16
224
225/*
226 * Stuff we need to share writably between parent and child.
227 */
228typedef struct ztest_shared {
229 mutex_t zs_vdev_lock;
230 rwlock_t zs_name_lock;
231 uint64_t zs_vdev_primaries;
232 uint64_t zs_vdev_aux;
233 uint64_t zs_enospc_count;
234 hrtime_t zs_start_time;
235 hrtime_t zs_stop_time;
236 uint64_t zs_alloc;
237 uint64_t zs_space;
238 ztest_info_t zs_info[ZTEST_FUNCS];
239 mutex_t zs_sync_lock[ZTEST_SYNC_LOCKS];
240 uint64_t zs_seq[ZTEST_SYNC_LOCKS];
241} ztest_shared_t;
242
243static char ztest_dev_template[] = "%s/%s.%llua";
244static char ztest_aux_template[] = "%s/%s.%s.%llu";
245static ztest_shared_t *ztest_shared;
246
247static int ztest_random_fd;
248static int ztest_dump_core = 1;
249
250static boolean_t ztest_exiting;
251
252extern uint64_t metaslab_gang_bang;
253
254#define ZTEST_DIROBJ 1
255#define ZTEST_MICROZAP_OBJ 2
256#define ZTEST_FATZAP_OBJ 3
257
258#define ZTEST_DIROBJ_BLOCKSIZE (1 << 10)
259#define ZTEST_DIRSIZE 256
260
261static void usage(boolean_t) __NORETURN;

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364static void
365usage(boolean_t requested)
366{
367 char nice_vdev_size[10];
368 char nice_gang_bang[10];
369 FILE *fp = requested ? stdout : stderr;
370
371 nicenum(zopt_vdev_size, nice_vdev_size);
372 nicenum(metaslab_gang_bang, nice_gang_bang);
373
374 (void) fprintf(fp, "Usage: %s\n"
375 "\t[-v vdevs (default: %llu)]\n"
376 "\t[-s size_of_each_vdev (default: %s)]\n"
377 "\t[-a alignment_shift (default: %d) (use 0 for random)]\n"
378 "\t[-m mirror_copies (default: %d)]\n"
379 "\t[-r raidz_disks (default: %d)]\n"
380 "\t[-R raidz_parity (default: %d)]\n"
381 "\t[-d datasets (default: %d)]\n"
382 "\t[-t threads (default: %d)]\n"
383 "\t[-g gang_block_threshold (default: %s)]\n"
384 "\t[-i initialize pool i times (default: %d)]\n"
385 "\t[-k kill percentage (default: %llu%%)]\n"
386 "\t[-p pool_name (default: %s)]\n"
387 "\t[-f file directory for vdev files (default: %s)]\n"
388 "\t[-V(erbose)] (use multiple times for ever more blather)\n"
389 "\t[-E(xisting)] (use existing pool instead of creating new one)\n"
390 "\t[-T time] total run time (default: %llu sec)\n"
391 "\t[-P passtime] time per pass (default: %llu sec)\n"
392 "\t[-h] (print help)\n"
393 "",
394 cmdname,
395 (u_longlong_t)zopt_vdevs, /* -v */
396 nice_vdev_size, /* -s */
397 zopt_ashift, /* -a */
398 zopt_mirrors, /* -m */
399 zopt_raidz, /* -r */
400 zopt_raidz_parity, /* -R */
401 zopt_datasets, /* -d */
402 zopt_threads, /* -t */
403 nice_gang_bang, /* -g */
404 zopt_init, /* -i */
405 (u_longlong_t)zopt_killrate, /* -k */
406 zopt_pool, /* -p */
407 zopt_dir, /* -f */
408 (u_longlong_t)zopt_time, /* -T */
409 (u_longlong_t)zopt_passtime); /* -P */
410 exit(requested ? 0 : 1);
411}
412
413static uint64_t
414ztest_random(uint64_t range)
415{
416 uint64_t r;
417

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436{
437 int opt;
438 uint64_t value;
439
440 /* Remember program name. */
441 progname = argv[0];
442
443 /* By default, test gang blocks for blocks 32K and greater */
444 metaslab_gang_bang = 32 << 10;
445
446 while ((opt = getopt(argc, argv,
447 "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:h")) != EOF) {
448 value = 0;
449 switch (opt) {
450 case 'v':
451 case 's':
452 case 'a':
453 case 'm':
454 case 'r':
455 case 'R':
456 case 'd':
457 case 't':
458 case 'g':
459 case 'i':
460 case 'k':
461 case 'T':
462 case 'P':
463 value = nicenumtoull(optarg);
464 }
465 switch (opt) {
466 case 'v':
467 zopt_vdevs = value;
468 break;
469 case 's':
470 zopt_vdev_size = MAX(SPA_MINDEVSIZE, value);
471 break;
472 case 'a':
473 zopt_ashift = value;
474 break;
475 case 'm':
476 zopt_mirrors = value;
477 break;
478 case 'r':
479 zopt_raidz = MAX(1, value);
480 break;
481 case 'R':
482 zopt_raidz_parity = MIN(MAX(value, 1), 2);
483 break;
484 case 'd':
485 zopt_datasets = MAX(1, value);
486 break;
487 case 't':
488 zopt_threads = MAX(1, value);
489 break;
490 case 'g':
491 metaslab_gang_bang = MAX(SPA_MINBLOCKSIZE << 1, value);
492 break;
493 case 'i':
494 zopt_init = value;
495 break;
496 case 'k':
497 zopt_killrate = value;
498 break;
499 case 'p':
500 zopt_pool = strdup(optarg);
501 break;
502 case 'f':
503 zopt_dir = strdup(optarg);
504 break;
505 case 'V':
506 zopt_verbose++;
507 break;
508 case 'E':
509 zopt_init = 0;
510 break;
511 case 'T':
512 zopt_time = value;
513 break;
514 case 'P':
515 zopt_passtime = MAX(1, value);
516 break;
517 case 'h':
518 usage(B_TRUE);
519 break;
520 case '?':
521 default:
522 usage(B_FALSE);
523 break;
524 }
525 }
526
527 zopt_raidz_parity = MIN(zopt_raidz_parity, zopt_raidz - 1);
528
529 zopt_vdevtime = (zopt_vdevs > 0 ? zopt_time / zopt_vdevs : UINT64_MAX);

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534ztest_get_ashift(void)
535{
536 if (zopt_ashift == 0)
537 return (SPA_MINBLOCKSHIFT + ztest_random(3));
538 return (zopt_ashift);
539}
540
541static nvlist_t *
542make_vdev_file(char *path, char *aux, size_t size, uint64_t ashift)
543{
544 char pathbuf[MAXPATHLEN];
545 uint64_t vdev;
546 nvlist_t *file;
547
548 if (ashift == 0)
549 ashift = ztest_get_ashift();
550
551 if (path == NULL) {
552 path = pathbuf;
553
554 if (aux != NULL) {
555 vdev = ztest_shared->zs_vdev_aux;
556 (void) sprintf(path, ztest_aux_template,
557 zopt_dir, zopt_pool, aux, vdev);
558 } else {
559 vdev = ztest_shared->zs_vdev_primaries++;
560 (void) sprintf(path, ztest_dev_template,
561 zopt_dir, zopt_pool, vdev);
562 }
563 }
564
565 if (size != 0) {
566 int fd = open(path, O_RDWR | O_CREAT | O_TRUNC, 0666);
567 if (fd == -1)
568 fatal(1, "can't open %s", path);
569 if (ftruncate(fd, size) != 0)
570 fatal(1, "can't ftruncate %s", path);
571 (void) close(fd);
572 }
573
574 VERIFY(nvlist_alloc(&file, NV_UNIQUE_NAME, 0) == 0);
575 VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_TYPE, VDEV_TYPE_FILE) == 0);
576 VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_PATH, path) == 0);
577 VERIFY(nvlist_add_uint64(file, ZPOOL_CONFIG_ASHIFT, ashift) == 0);
578
579 return (file);
580}
581
582static nvlist_t *
583make_vdev_raidz(char *path, char *aux, size_t size, uint64_t ashift, int r)
584{
585 nvlist_t *raidz, **child;
586 int c;
587
588 if (r < 2)
589 return (make_vdev_file(path, aux, size, ashift));
590 child = umem_alloc(r * sizeof (nvlist_t *), UMEM_NOFAIL);
591
592 for (c = 0; c < r; c++)
593 child[c] = make_vdev_file(path, aux, size, ashift);
594
595 VERIFY(nvlist_alloc(&raidz, NV_UNIQUE_NAME, 0) == 0);
596 VERIFY(nvlist_add_string(raidz, ZPOOL_CONFIG_TYPE,
597 VDEV_TYPE_RAIDZ) == 0);
598 VERIFY(nvlist_add_uint64(raidz, ZPOOL_CONFIG_NPARITY,
599 zopt_raidz_parity) == 0);
600 VERIFY(nvlist_add_nvlist_array(raidz, ZPOOL_CONFIG_CHILDREN,
601 child, r) == 0);
602
603 for (c = 0; c < r; c++)
604 nvlist_free(child[c]);
605
606 umem_free(child, r * sizeof (nvlist_t *));
607
608 return (raidz);
609}
610
611static nvlist_t *
612make_vdev_mirror(char *path, char *aux, size_t size, uint64_t ashift,
613 int r, int m)
614{
615 nvlist_t *mirror, **child;
616 int c;
617
618 if (m < 1)
619 return (make_vdev_raidz(path, aux, size, ashift, r));
620
621 child = umem_alloc(m * sizeof (nvlist_t *), UMEM_NOFAIL);
622
623 for (c = 0; c < m; c++)
624 child[c] = make_vdev_raidz(path, aux, size, ashift, r);
625
626 VERIFY(nvlist_alloc(&mirror, NV_UNIQUE_NAME, 0) == 0);
627 VERIFY(nvlist_add_string(mirror, ZPOOL_CONFIG_TYPE,
628 VDEV_TYPE_MIRROR) == 0);
629 VERIFY(nvlist_add_nvlist_array(mirror, ZPOOL_CONFIG_CHILDREN,
630 child, m) == 0);
631
632 for (c = 0; c < m; c++)
633 nvlist_free(child[c]);
634
635 umem_free(child, m * sizeof (nvlist_t *));
636
637 return (mirror);
638}
639
640static nvlist_t *
641make_vdev_root(char *path, char *aux, size_t size, uint64_t ashift,
642 int log, int r, int m, int t)
643{
644 nvlist_t *root, **child;
645 int c;
646
647 ASSERT(t > 0);
648
649 child = umem_alloc(t * sizeof (nvlist_t *), UMEM_NOFAIL);
650
651 for (c = 0; c < t; c++) {
652 child[c] = make_vdev_mirror(path, aux, size, ashift, r, m);
653 VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
654 log) == 0);
655 }
656
657 VERIFY(nvlist_alloc(&root, NV_UNIQUE_NAME, 0) == 0);
658 VERIFY(nvlist_add_string(root, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) == 0);
659 VERIFY(nvlist_add_nvlist_array(root, aux ? aux : ZPOOL_CONFIG_CHILDREN,
660 child, t) == 0);
661
662 for (c = 0; c < t; c++)
663 nvlist_free(child[c]);
664
665 umem_free(child, t * sizeof (nvlist_t *));
666
667 return (root);

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795{
796 int error;
797 spa_t *spa;
798 nvlist_t *nvroot;
799
800 /*
801 * Attempt to create using a bad file.
802 */
803 nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
804 error = spa_create("ztest_bad_file", nvroot, NULL, NULL, NULL);
805 nvlist_free(nvroot);
806 if (error != ENOENT)
807 fatal(0, "spa_create(bad_file) = %d", error);
808
809 /*
810 * Attempt to create using a bad mirror.
811 */
812 nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 2, 1);
813 error = spa_create("ztest_bad_mirror", nvroot, NULL, NULL, NULL);
814 nvlist_free(nvroot);
815 if (error != ENOENT)
816 fatal(0, "spa_create(bad_mirror) = %d", error);
817
818 /*
819 * Attempt to create an existing pool. It shouldn't matter
820 * what's in the nvroot; we should fail with EEXIST.
821 */
822 (void) rw_rdlock(&ztest_shared->zs_name_lock);
823 nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
824 error = spa_create(za->za_pool, nvroot, NULL, NULL, NULL);
825 nvlist_free(nvroot);
826 if (error != EEXIST)
827 fatal(0, "spa_create(whatever) = %d", error);
828
829 error = spa_open(za->za_pool, &spa, FTAG);
830 if (error)
831 fatal(0, "spa_open() = %d", error);
832
833 error = spa_destroy(za->za_pool);
834 if (error != EBUSY)
835 fatal(0, "spa_destroy() = %d", error);
836
837 spa_close(spa, FTAG);
838 (void) rw_unlock(&ztest_shared->zs_name_lock);
839}
840
841static vdev_t *
842vdev_lookup_by_path(vdev_t *vd, const char *path)
843{
844 vdev_t *mvd;
845
846 if (vd->vdev_path != NULL && strcmp(path, vd->vdev_path) == 0)
847 return (vd);
848
849 for (int c = 0; c < vd->vdev_children; c++)
850 if ((mvd = vdev_lookup_by_path(vd->vdev_child[c], path)) !=
851 NULL)
852 return (mvd);
853
854 return (NULL);
855}
856
857/*
858 * Verify that vdev_add() works as expected.
859 */
860void
861ztest_vdev_add_remove(ztest_args_t *za)
862{
863 spa_t *spa = za->za_spa;
864 uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz;
865 nvlist_t *nvroot;
866 int error;
867
868 (void) mutex_lock(&ztest_shared->zs_vdev_lock);
869
870 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
871
872 ztest_shared->zs_vdev_primaries =
873 spa->spa_root_vdev->vdev_children * leaves;
874
875 spa_config_exit(spa, SCL_VDEV, FTAG);
876
877 /*
878 * Make 1/4 of the devices be log devices.
879 */
880 nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0,
881 ztest_random(4) == 0, zopt_raidz, zopt_mirrors, 1);
882
883 error = spa_vdev_add(spa, nvroot);
884 nvlist_free(nvroot);
885
886 (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
887
888 if (error == ENOSPC)
889 ztest_record_enospc("spa_vdev_add");
890 else if (error != 0)
891 fatal(0, "spa_vdev_add() = %d", error);
892}
893
894/*
895 * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
896 */
897void
898ztest_vdev_aux_add_remove(ztest_args_t *za)
899{
900 spa_t *spa = za->za_spa;
901 vdev_t *rvd = spa->spa_root_vdev;
902 spa_aux_vdev_t *sav;
903 char *aux;
904 uint64_t guid = 0;
905 int error;
906
907 if (ztest_random(2) == 0) {
908 sav = &spa->spa_spares;
909 aux = ZPOOL_CONFIG_SPARES;
910 } else {
911 sav = &spa->spa_l2cache;
912 aux = ZPOOL_CONFIG_L2CACHE;
913 }
914
915 (void) mutex_lock(&ztest_shared->zs_vdev_lock);
916
917 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
918
919 if (sav->sav_count != 0 && ztest_random(4) == 0) {
920 /*
921 * Pick a random device to remove.
922 */
923 guid = sav->sav_vdevs[ztest_random(sav->sav_count)]->vdev_guid;
924 } else {
925 /*
926 * Find an unused device we can add.
927 */
928 ztest_shared->zs_vdev_aux = 0;
929 for (;;) {
930 char path[MAXPATHLEN];
931 int c;
932 (void) sprintf(path, ztest_aux_template, zopt_dir,
933 zopt_pool, aux, ztest_shared->zs_vdev_aux);
934 for (c = 0; c < sav->sav_count; c++)
935 if (strcmp(sav->sav_vdevs[c]->vdev_path,
936 path) == 0)
937 break;
938 if (c == sav->sav_count &&
939 vdev_lookup_by_path(rvd, path) == NULL)
940 break;
941 ztest_shared->zs_vdev_aux++;
942 }
943 }
944
945 spa_config_exit(spa, SCL_VDEV, FTAG);
946
947 if (guid == 0) {
948 /*
949 * Add a new device.
950 */
951 nvlist_t *nvroot = make_vdev_root(NULL, aux,
952 (zopt_vdev_size * 5) / 4, 0, 0, 0, 0, 1);
953 error = spa_vdev_add(spa, nvroot);
954 if (error != 0)
955 fatal(0, "spa_vdev_add(%p) = %d", nvroot, error);
956 nvlist_free(nvroot);
957 } else {
958 /*
959 * Remove an existing device. Sometimes, dirty its
960 * vdev state first to make sure we handle removal
961 * of devices that have pending state changes.
962 */
963 if (ztest_random(2) == 0)
964 (void) vdev_online(spa, guid, B_FALSE, NULL);
965
966 error = spa_vdev_remove(spa, guid, B_FALSE);
967 if (error != 0 && error != EBUSY)
968 fatal(0, "spa_vdev_remove(%llu) = %d", guid, error);
969 }
970
971 (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
972}
973
974/*
975 * Verify that we can attach and detach devices.
976 */
977void
978ztest_vdev_attach_detach(ztest_args_t *za)
979{
980 spa_t *spa = za->za_spa;
981 spa_aux_vdev_t *sav = &spa->spa_spares;
982 vdev_t *rvd = spa->spa_root_vdev;
983 vdev_t *oldvd, *newvd, *pvd;
984 nvlist_t *root;
985 uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz;
986 uint64_t leaf, top;
987 uint64_t ashift = ztest_get_ashift();
988 uint64_t oldguid;
989 size_t oldsize, newsize;
990 char oldpath[MAXPATHLEN], newpath[MAXPATHLEN];
991 int replacing;
992 int oldvd_has_siblings = B_FALSE;
993 int newvd_is_spare = B_FALSE;
994 int oldvd_is_log;
995 int error, expected_error;
996
997 (void) mutex_lock(&ztest_shared->zs_vdev_lock);
998
999 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
1000
1001 /*
1002 * Decide whether to do an attach or a replace.
1003 */
1004 replacing = ztest_random(2);
1005
1006 /*
1007 * Pick a random top-level vdev.
1008 */
1009 top = ztest_random(rvd->vdev_children);
1010
1011 /*
1012 * Pick a random leaf within it.
1013 */
1014 leaf = ztest_random(leaves);
1015
1016 /*
1017 * Locate this vdev.
1018 */
1019 oldvd = rvd->vdev_child[top];
1020 if (zopt_mirrors >= 1)
1021 oldvd = oldvd->vdev_child[leaf / zopt_raidz];
1022 if (zopt_raidz > 1)
1023 oldvd = oldvd->vdev_child[leaf % zopt_raidz];
1024
1025 /*
1026 * If we're already doing an attach or replace, oldvd may be a
1027 * mirror vdev -- in which case, pick a random child.
1028 */
1029 while (oldvd->vdev_children != 0) {
1030 oldvd_has_siblings = B_TRUE;
1031 ASSERT(oldvd->vdev_children == 2);
1032 oldvd = oldvd->vdev_child[ztest_random(2)];
1033 }
1034
1035 oldguid = oldvd->vdev_guid;
1036 oldsize = vdev_get_rsize(oldvd);
1037 oldvd_is_log = oldvd->vdev_top->vdev_islog;
1038 (void) strcpy(oldpath, oldvd->vdev_path);
1039 pvd = oldvd->vdev_parent;
1040
1041 /*
1042 * If oldvd has siblings, then half of the time, detach it.
1043 */
1044 if (oldvd_has_siblings && ztest_random(2) == 0) {
1045 spa_config_exit(spa, SCL_VDEV, FTAG);
1046 error = spa_vdev_detach(spa, oldguid, B_FALSE);
1047 if (error != 0 && error != ENODEV && error != EBUSY)
1048 fatal(0, "detach (%s) returned %d",
1049 oldpath, error);
1050 (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
1051 return;
1052 }
1053
1054 /*
1055 * For the new vdev, choose with equal probability between the two
1056 * standard paths (ending in either 'a' or 'b') or a random hot spare.
1057 */
1058 if (sav->sav_count != 0 && ztest_random(3) == 0) {
1059 newvd = sav->sav_vdevs[ztest_random(sav->sav_count)];
1060 newvd_is_spare = B_TRUE;
1061 (void) strcpy(newpath, newvd->vdev_path);
1062 } else {
1063 (void) snprintf(newpath, sizeof (newpath), ztest_dev_template,
1064 zopt_dir, zopt_pool, top * leaves + leaf);
1065 if (ztest_random(2) == 0)
1066 newpath[strlen(newpath) - 1] = 'b';
1067 newvd = vdev_lookup_by_path(rvd, newpath);
1068 }
1069
1070 if (newvd) {
1071 newsize = vdev_get_rsize(newvd);
1072 } else {
1073 /*
1074 * Make newsize a little bigger or smaller than oldsize.
1075 * If it's smaller, the attach should fail.
1076 * If it's larger, and we're doing a replace,
1077 * we should get dynamic LUN growth when we're done.
1078 */
1079 newsize = 10 * oldsize / (9 + ztest_random(3));
1080 }
1081
1082 /*
1083 * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
1084 * unless it's a replace; in that case any non-replacing parent is OK.
1085 *
1086 * If newvd is already part of the pool, it should fail with EBUSY.
1087 *
1088 * If newvd is too small, it should fail with EOVERFLOW.
1089 */
1090 if (pvd->vdev_ops != &vdev_mirror_ops &&
1091 pvd->vdev_ops != &vdev_root_ops && (!replacing ||
1092 pvd->vdev_ops == &vdev_replacing_ops ||
1093 pvd->vdev_ops == &vdev_spare_ops))
1094 expected_error = ENOTSUP;
1095 else if (newvd_is_spare && (!replacing || oldvd_is_log))
1096 expected_error = ENOTSUP;
1097 else if (newvd == oldvd)
1098 expected_error = replacing ? 0 : EBUSY;
1099 else if (vdev_lookup_by_path(rvd, newpath) != NULL)
1100 expected_error = EBUSY;
1101 else if (newsize < oldsize)
1102 expected_error = EOVERFLOW;
1103 else if (ashift > oldvd->vdev_top->vdev_ashift)
1104 expected_error = EDOM;
1105 else
1106 expected_error = 0;
1107
1108 spa_config_exit(spa, SCL_VDEV, FTAG);
1109
1110 /*
1111 * Build the nvlist describing newpath.
1112 */
1113 root = make_vdev_root(newpath, NULL, newvd == NULL ? newsize : 0,
1114 ashift, 0, 0, 0, 1);
1115
1116 error = spa_vdev_attach(spa, oldguid, root, replacing);
1117
1118 nvlist_free(root);
1119
1120 /*
1121 * If our parent was the replacing vdev, but the replace completed,
1122 * then instead of failing with ENOTSUP we may either succeed,
1123 * fail with ENODEV, or fail with EOVERFLOW.
1124 */
1125 if (expected_error == ENOTSUP &&
1126 (error == 0 || error == ENODEV || error == EOVERFLOW))
1127 expected_error = error;
1128
1129 /*
1130 * If someone grew the LUN, the replacement may be too small.
1131 */
1132 if (error == EOVERFLOW || error == EBUSY)
1133 expected_error = error;
1134
1135 /* XXX workaround 6690467 */
1136 if (error != expected_error && expected_error != EBUSY) {
1137 fatal(0, "attach (%s %llu, %s %llu, %d) "
1138 "returned %d, expected %d",
1139 oldpath, (longlong_t)oldsize, newpath,
1140 (longlong_t)newsize, replacing, error, expected_error);
1141 }
1142
1143 (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
1144}
1145
1146/*
1147 * Verify that dynamic LUN growth works as expected.
1148 */
1149/* ARGSUSED */
1150void
1151ztest_vdev_LUN_growth(ztest_args_t *za)
1152{
1153 spa_t *spa = za->za_spa;
1154 char dev_name[MAXPATHLEN];
1155 uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz;
1156 uint64_t vdev;
1157 size_t fsize;
1158 int fd;
1159
1160 (void) mutex_lock(&ztest_shared->zs_vdev_lock);
1161
1162 /*
1163 * Pick a random leaf vdev.
1164 */
1165 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
1166 vdev = ztest_random(spa->spa_root_vdev->vdev_children * leaves);
1167 spa_config_exit(spa, SCL_VDEV, FTAG);
1168
1169 (void) sprintf(dev_name, ztest_dev_template, zopt_dir, zopt_pool, vdev);
1170
1171 if ((fd = open(dev_name, O_RDWR)) != -1) {
1172 /*
1173 * Determine the size.
1174 */
1175 fsize = lseek(fd, 0, SEEK_END);

--- 12 unchanged lines hidden (view full) ---

1188 (void) close(fd);
1189 }
1190
1191 (void) mutex_unlock(&ztest_shared->zs_vdev_lock);
1192}
1193
1194/* ARGSUSED */
1195static void
1196ztest_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
1197{
1198 /*
1199 * Create the directory object.
1200 */
1201 VERIFY(dmu_object_claim(os, ZTEST_DIROBJ,
1202 DMU_OT_UINT64_OTHER, ZTEST_DIROBJ_BLOCKSIZE,
1203 DMU_OT_UINT64_OTHER, 5 * sizeof (ztest_block_tag_t), tx) == 0);
1204
1205 VERIFY(zap_create_claim(os, ZTEST_MICROZAP_OBJ,
1206 DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0);
1207
1208 VERIFY(zap_create_claim(os, ZTEST_FATZAP_OBJ,
1209 DMU_OT_ZAP_OTHER, DMU_OT_NONE, 0, tx) == 0);
1210}
1211
1212static int
1213ztest_destroy_cb(char *name, void *arg)
1214{
1215 ztest_args_t *za = arg;
1216 objset_t *os;
1217 dmu_object_info_t *doi = &za->za_doi;
1218 int error;
1219
1220 /*
1221 * Verify that the dataset contains a directory object.
1222 */
1223 error = dmu_objset_open(name, DMU_OST_OTHER,
1224 DS_MODE_USER | DS_MODE_READONLY, &os);
1225 ASSERT3U(error, ==, 0);
1226 error = dmu_object_info(os, ZTEST_DIROBJ, doi);
1227 if (error != ENOENT) {
1228 /* We could have crashed in the middle of destroying it */
1229 ASSERT3U(error, ==, 0);
1230 ASSERT3U(doi->doi_type, ==, DMU_OT_UINT64_OTHER);
1231 ASSERT3S(doi->doi_physical_blks, >=, 0);
1232 }
1233 dmu_objset_close(os);
1234
1235 /*
1236 * Destroy the dataset.
1237 */
1238 error = dmu_objset_destroy(name);
1239 if (error) {
1240 (void) dmu_objset_open(name, DMU_OST_OTHER,
1241 DS_MODE_USER | DS_MODE_READONLY, &os);
1242 fatal(0, "dmu_objset_destroy(os=%p) = %d\n", &os, error);
1243 }
1244 return (0);
1245}
1246
1247/*
1248 * Verify that dmu_objset_{create,destroy,open,close} work as expected.
1249 */
1250static uint64_t
1251ztest_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t object, int mode)

--- 23 unchanged lines hidden (view full) ---

1275
1276 return (zil_itx_assign(zilog, itx, tx));
1277}
1278
1279void
1280ztest_dmu_objset_create_destroy(ztest_args_t *za)
1281{
1282 int error;
1283 objset_t *os, *os2;
1284 char name[100];
1285 int basemode, expected_error;
1286 zilog_t *zilog;
1287 uint64_t seq;
1288 uint64_t objects;
1289 ztest_replay_t zr;
1290
1291 (void) rw_rdlock(&ztest_shared->zs_name_lock);
1292 (void) snprintf(name, 100, "%s/%s_temp_%llu", za->za_pool, za->za_pool,
1293 (u_longlong_t)za->za_instance);
1294
1295 basemode = DS_MODE_TYPE(za->za_instance);
1296 if (basemode != DS_MODE_USER && basemode != DS_MODE_OWNER)
1297 basemode = DS_MODE_USER;
1298
1299 /*
1300 * If this dataset exists from a previous run, process its replay log
1301 * half of the time. If we don't replay it, then dmu_objset_destroy()
1302 * (invoked from ztest_destroy_cb() below) should just throw it away.
1303 */
1304 if (ztest_random(2) == 0 &&
1305 dmu_objset_open(name, DMU_OST_OTHER, DS_MODE_OWNER, &os) == 0) {
1306 zr.zr_os = os;
1307 zil_replay(os, &zr, &zr.zr_assign, ztest_replay_vector, NULL);
1308 dmu_objset_close(os);
1309 }
1310
1311 /*
1312 * There may be an old instance of the dataset we're about to
1313 * create lying around from a previous run. If so, destroy it
1314 * and all of its snapshots.
1315 */
1316 (void) dmu_objset_find(name, ztest_destroy_cb, za,
1317 DS_FIND_CHILDREN | DS_FIND_SNAPSHOTS);
1318
1319 /*
1320 * Verify that the destroyed dataset is no longer in the namespace.
1321 */
1322 error = dmu_objset_open(name, DMU_OST_OTHER, basemode, &os);
1323 if (error != ENOENT)
1324 fatal(1, "dmu_objset_open(%s) found destroyed dataset %p",
1325 name, os);
1326
1327 /*
1328 * Verify that we can create a new dataset.
1329 */
1330 error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0,
1331 ztest_create_cb, NULL);
1332 if (error) {
1333 if (error == ENOSPC) {
1334 ztest_record_enospc("dmu_objset_create");
1335 (void) rw_unlock(&ztest_shared->zs_name_lock);
1336 return;
1337 }
1338 fatal(0, "dmu_objset_create(%s) = %d", name, error);
1339 }

--- 38 unchanged lines hidden (view full) ---

1378 zil_resume(zilog);
1379 }
1380 }
1381 }
1382
1383 /*
1384 * Verify that we cannot create an existing dataset.
1385 */
1386 error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0, NULL, NULL);
1387 if (error != EEXIST)
1388 fatal(0, "created existing dataset, error = %d", error);
1389
1390 /*
1391 * Verify that multiple dataset holds are allowed, but only when
1392 * the new access mode is compatible with the base mode.
1393 */
1394 if (basemode == DS_MODE_OWNER) {
1395 error = dmu_objset_open(name, DMU_OST_OTHER, DS_MODE_USER,
1396 &os2);
1397 if (error)
1398 fatal(0, "dmu_objset_open('%s') = %d", name, error);
1399 else
1400 dmu_objset_close(os2);
1401 }
1402 error = dmu_objset_open(name, DMU_OST_OTHER, DS_MODE_OWNER, &os2);
1403 expected_error = (basemode == DS_MODE_OWNER) ? EBUSY : 0;
1404 if (error != expected_error)
1405 fatal(0, "dmu_objset_open('%s') = %d, expected %d",
1406 name, error, expected_error);
1407 if (error == 0)
1408 dmu_objset_close(os2);
1409
1410 zil_close(zilog);
1411 dmu_objset_close(os);
1412
1413 error = dmu_objset_destroy(name);
1414 if (error)
1415 fatal(0, "dmu_objset_destroy(%s) = %d", name, error);
1416

--- 107 unchanged lines hidden (view full) ---

1524}
1525
1526/*
1527 * Verify that live pool traversal works.
1528 */
1529void
1530ztest_traverse(ztest_args_t *za)
1531{
1532 spa_t *spa = za->za_spa;
1533 traverse_handle_t *th = za->za_th;
1534 int rc, advance;
1535 uint64_t cbstart, cblimit;
1536
1537 if (th == NULL) {
1538 advance = 0;
1539
1540 if (ztest_random(2) == 0)

--- 55 unchanged lines hidden (view full) ---

1596void
1597ztest_dmu_object_alloc_free(ztest_args_t *za)
1598{
1599 objset_t *os = za->za_os;
1600 dmu_buf_t *db;
1601 dmu_tx_t *tx;
1602 uint64_t batchobj, object, batchsize, endoff, temp;
1603 int b, c, error, bonuslen;
1604 dmu_object_info_t *doi = &za->za_doi;
1605 char osname[MAXNAMELEN];
1606
1607 dmu_objset_name(os, osname);
1608
1609 endoff = -8ULL;
1610 batchsize = 2;
1611
1612 /*
1613 * Create a batch object if necessary, and record it in the directory.
1614 */
1615 VERIFY3U(0, ==, dmu_read(os, ZTEST_DIROBJ, za->za_diroff,
1616 sizeof (uint64_t), &batchobj));
1617 if (batchobj == 0) {
1618 tx = dmu_tx_create(os);
1619 dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff,
1620 sizeof (uint64_t));
1621 dmu_tx_hold_bonus(tx, DMU_NEW_OBJECT);
1622 error = dmu_tx_assign(tx, TXG_WAIT);
1623 if (error) {

--- 8 unchanged lines hidden (view full) ---

1632 sizeof (uint64_t), &batchobj, tx);
1633 dmu_tx_commit(tx);
1634 }
1635
1636 /*
1637 * Destroy the previous batch of objects.
1638 */
1639 for (b = 0; b < batchsize; b++) {
1640 VERIFY3U(0, ==, dmu_read(os, batchobj, b * sizeof (uint64_t),
1641 sizeof (uint64_t), &object));
1642 if (object == 0)
1643 continue;
1644 /*
1645 * Read and validate contents.
1646 * We expect the nth byte of the bonus buffer to be n.
1647 */
1648 VERIFY(0 == dmu_bonus_hold(os, object, FTAG, &db));
1649 za->za_dbuf = db;
1650
1651 dmu_object_info_from_db(db, doi);
1652 ASSERT(doi->doi_type == DMU_OT_UINT64_OTHER);
1653 ASSERT(doi->doi_bonus_type == DMU_OT_PLAIN_OTHER);
1654 ASSERT3S(doi->doi_physical_blks, >=, 0);
1655
1656 bonuslen = doi->doi_bonus_size;
1657
1658 for (c = 0; c < bonuslen; c++) {
1659 if (((uint8_t *)db->db_data)[c] !=
1660 (uint8_t)(c + bonuslen)) {
1661 fatal(0,
1662 "bad bonus: %s, obj %llu, off %d: %u != %u",
1663 osname, object, c,
1664 ((uint8_t *)db->db_data)[c],
1665 (uint8_t)(c + bonuslen));
1666 }
1667 }
1668
1669 dmu_buf_rele(db, FTAG);
1670 za->za_dbuf = NULL;
1671
1672 /*
1673 * We expect the word at endoff to be our object number.
1674 */
1675 VERIFY(0 == dmu_read(os, object, endoff,
1676 sizeof (uint64_t), &temp));
1677
1678 if (temp != object) {

--- 88 unchanged lines hidden (view full) ---

1767 ztest_random_compress(), tx);
1768
1769 dmu_write(os, batchobj, b * sizeof (uint64_t),
1770 sizeof (uint64_t), &object, tx);
1771
1772 /*
1773 * Write to both the bonus buffer and the regular data.
1774 */
1775 VERIFY(dmu_bonus_hold(os, object, FTAG, &db) == 0);
1776 za->za_dbuf = db;
1777 ASSERT3U(bonuslen, <=, db->db_size);
1778
1779 dmu_object_size_from_db(db, &va_blksize, &va_nblocks);
1780 ASSERT3S(va_nblocks, >=, 0);
1781
1782 dmu_buf_will_dirty(db, tx);
1783
1784 /*
1785 * See comments above regarding the contents of
1786 * the bonus buffer and the word at endoff.
1787 */
1788 for (c = 0; c < bonuslen; c++)
1789 ((uint8_t *)db->db_data)[c] = (uint8_t)(c + bonuslen);
1790
1791 dmu_buf_rele(db, FTAG);
1792 za->za_dbuf = NULL;
1793
1794 /*
1795 * Write to a large offset to increase indirection.
1796 */
1797 dmu_write(os, object, endoff, sizeof (uint64_t), &object, tx);
1798
1799 dmu_tx_commit(tx);
1800 }

--- 238 unchanged lines hidden (view full) ---

2039 umem_free(bigcheck, bigsize);
2040 }
2041
2042 umem_free(packbuf, packsize);
2043 umem_free(bigbuf, bigsize);
2044}
2045
2046void
2047ztest_dmu_check_future_leak(ztest_args_t *za)
2048{
2049 objset_t *os = za->za_os;
2050 dmu_buf_t *db;
2051 ztest_block_tag_t *bt;
2052 dmu_object_info_t *doi = &za->za_doi;
2053
2054 /*
2055 * Make sure that, if there is a write record in the bonus buffer
2056 * of the ZTEST_DIROBJ, that the txg for this record is <= the
2057 * last synced txg of the pool.
2058 */
2059 VERIFY(dmu_bonus_hold(os, ZTEST_DIROBJ, FTAG, &db) == 0);
2060 za->za_dbuf = db;
2061 VERIFY(dmu_object_info(os, ZTEST_DIROBJ, doi) == 0);
2062 ASSERT3U(doi->doi_bonus_size, >=, sizeof (*bt));
2063 ASSERT3U(doi->doi_bonus_size, <=, db->db_size);
2064 ASSERT3U(doi->doi_bonus_size % sizeof (*bt), ==, 0);
2065 bt = (void *)((char *)db->db_data + doi->doi_bonus_size - sizeof (*bt));
2066 if (bt->bt_objset != 0) {
2067 ASSERT3U(bt->bt_objset, ==, dmu_objset_id(os));
2068 ASSERT3U(bt->bt_object, ==, ZTEST_DIROBJ);
2069 ASSERT3U(bt->bt_offset, ==, -1ULL);
2070 ASSERT3U(bt->bt_txg, <, spa_first_txg(za->za_spa));
2071 }
2072 dmu_buf_rele(db, FTAG);
2073 za->za_dbuf = NULL;
2074}
2075
2076void
2077ztest_dmu_write_parallel(ztest_args_t *za)
2078{
2079 objset_t *os = za->za_os;
2080 ztest_block_tag_t *rbt = &za->za_rbt;
2081 ztest_block_tag_t *wbt = &za->za_wbt;
2082 const size_t btsize = sizeof (ztest_block_tag_t);
2083 dmu_buf_t *db;
2084 int b, error;
2085 int bs = ZTEST_DIROBJ_BLOCKSIZE;
2086 int do_free = 0;
2087 uint64_t off, txg, txg_how;
2088 mutex_t *lp;
2089 char osname[MAXNAMELEN];
2090 char iobuf[SPA_MAXBLOCKSIZE];
2091 blkptr_t blk = { 0 };
2092 uint64_t blkoff;
2093 zbookmark_t zb;
2094 dmu_tx_t *tx = dmu_tx_create(os);
2095
2096 dmu_objset_name(os, osname);
2097
2098 /*
2099 * Have multiple threads write to large offsets in ZTEST_DIROBJ
2100 * to verify that having multiple threads writing to the same object
2101 * in parallel doesn't cause any trouble.
2102 */
2103 if (ztest_random(4) == 0) {
2104 /*
2105 * Do the bonus buffer instead of a regular block.
2106 * We need a lock to serialize resize vs. others,
2107 * so we hash on the objset ID.
2108 */
2109 b = dmu_objset_id(os) % ZTEST_SYNC_LOCKS;
2110 off = -1ULL;
2111 dmu_tx_hold_bonus(tx, ZTEST_DIROBJ);
2112 } else {
2113 b = ztest_random(ZTEST_SYNC_LOCKS);
2114 off = za->za_diroff_shared + (b << SPA_MAXBLOCKSHIFT);
2115 if (ztest_random(4) == 0) {
2116 do_free = 1;
2117 dmu_tx_hold_free(tx, ZTEST_DIROBJ, off, bs);
2118 } else {
2119 dmu_tx_hold_write(tx, ZTEST_DIROBJ, off, bs);
2120 }
2121 }
2122
2123 txg_how = ztest_random(2) == 0 ? TXG_WAIT : TXG_NOWAIT;
2124 error = dmu_tx_assign(tx, txg_how);
2125 if (error) {
2126 if (error == ERESTART) {
2127 ASSERT(txg_how == TXG_NOWAIT);
2128 dmu_tx_wait(tx);
2129 } else {
2130 ztest_record_enospc("dmu write parallel");
2131 }
2132 dmu_tx_abort(tx);
2133 return;
2134 }
2135 txg = dmu_tx_get_txg(tx);
2136
2137 lp = &ztest_shared->zs_sync_lock[b];
2138 (void) mutex_lock(lp);
2139
2140 wbt->bt_objset = dmu_objset_id(os);
2141 wbt->bt_object = ZTEST_DIROBJ;
2142 wbt->bt_offset = off;
2143 wbt->bt_txg = txg;
2144 wbt->bt_thread = za->za_instance;
2145 wbt->bt_seq = ztest_shared->zs_seq[b]++; /* protected by lp */
2146
2147 /*
2148 * Occasionally, write an all-zero block to test the behavior
2149 * of blocks that compress into holes.
2150 */
2151 if (off != -1ULL && ztest_random(8) == 0)
2152 bzero(wbt, btsize);
2153
2154 if (off == -1ULL) {
2155 dmu_object_info_t *doi = &za->za_doi;
2156 char *dboff;
2157
2158 VERIFY(dmu_bonus_hold(os, ZTEST_DIROBJ, FTAG, &db) == 0);
2159 za->za_dbuf = db;
2160 dmu_object_info_from_db(db, doi);
2161 ASSERT3U(doi->doi_bonus_size, <=, db->db_size);
2162 ASSERT3U(doi->doi_bonus_size, >=, btsize);
2163 ASSERT3U(doi->doi_bonus_size % btsize, ==, 0);
2164 dboff = (char *)db->db_data + doi->doi_bonus_size - btsize;
2165 bcopy(dboff, rbt, btsize);
2166 if (rbt->bt_objset != 0) {
2167 ASSERT3U(rbt->bt_objset, ==, wbt->bt_objset);
2168 ASSERT3U(rbt->bt_object, ==, wbt->bt_object);
2169 ASSERT3U(rbt->bt_offset, ==, wbt->bt_offset);
2170 ASSERT3U(rbt->bt_txg, <=, wbt->bt_txg);
2171 }
2172 if (ztest_random(10) == 0) {
2173 int newsize = (ztest_random(db->db_size /
2174 btsize) + 1) * btsize;
2175
2176 ASSERT3U(newsize, >=, btsize);
2177 ASSERT3U(newsize, <=, db->db_size);
2178 VERIFY3U(dmu_set_bonus(db, newsize, tx), ==, 0);
2179 dboff = (char *)db->db_data + newsize - btsize;
2180 }
2181 dmu_buf_will_dirty(db, tx);
2182 bcopy(wbt, dboff, btsize);
2183 dmu_buf_rele(db, FTAG);
2184 za->za_dbuf = NULL;
2185 } else if (do_free) {
2186 VERIFY(dmu_free_range(os, ZTEST_DIROBJ, off, bs, tx) == 0);
2187 } else {
2188 dmu_write(os, ZTEST_DIROBJ, off, btsize, wbt, tx);
2189 }
2190
2191 (void) mutex_unlock(lp);
2192
2193 if (ztest_random(1000) == 0)
2194 (void) poll(NULL, 0, 1); /* open dn_notxholds window */
2195
2196 dmu_tx_commit(tx);
2197
2198 if (ztest_random(10000) == 0)
2199 txg_wait_synced(dmu_objset_pool(os), txg);
2200
2201 if (off == -1ULL || do_free)
2202 return;
2203
2204 if (ztest_random(2) != 0)
2205 return;
2206
2207 /*
2208 * dmu_sync() the block we just wrote.
2209 */
2210 (void) mutex_lock(lp);
2211
2212 blkoff = P2ALIGN_TYPED(off, bs, uint64_t);
2213 error = dmu_buf_hold(os, ZTEST_DIROBJ, blkoff, FTAG, &db);
2214 za->za_dbuf = db;
2215 if (error) {
2216 dprintf("dmu_buf_hold(%s, %d, %llx) = %d\n",
2217 osname, ZTEST_DIROBJ, blkoff, error);
2218 (void) mutex_unlock(lp);
2219 return;
2220 }
2221 blkoff = off - blkoff;
2222 error = dmu_sync(NULL, db, &blk, txg, NULL, NULL);
2223 dmu_buf_rele(db, FTAG);
2224 za->za_dbuf = NULL;
2225
2226 (void) mutex_unlock(lp);
2227
2228 if (error) {
2229 dprintf("dmu_sync(%s, %d, %llx) = %d\n",
2230 osname, ZTEST_DIROBJ, off, error);
2231 return;
2232 }
2233
2234 if (blk.blk_birth == 0) /* concurrent free */
2235 return;
2236
2237 txg_suspend(dmu_objset_pool(os));
2238
2239 ASSERT(blk.blk_fill == 1);
2240 ASSERT3U(BP_GET_TYPE(&blk), ==, DMU_OT_UINT64_OTHER);
2241 ASSERT3U(BP_GET_LEVEL(&blk), ==, 0);
2242 ASSERT3U(BP_GET_LSIZE(&blk), ==, bs);
2243
2244 /*
2245 * Read the block that dmu_sync() returned to make sure its contents
2246 * match what we wrote. We do this while still txg_suspend()ed
2247 * to ensure that the block can't be reused before we read it.
2248 */
2249 zb.zb_objset = dmu_objset_id(os);
2250 zb.zb_object = ZTEST_DIROBJ;
2251 zb.zb_level = 0;
2252 zb.zb_blkid = off / bs;
2253 error = zio_wait(zio_read(NULL, za->za_spa, &blk, iobuf, bs,
2254 NULL, NULL, ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_MUSTSUCCEED, &zb));
2255 ASSERT3U(error, ==, 0);
2256
2257 txg_resume(dmu_objset_pool(os));
2258
2259 bcopy(&iobuf[blkoff], rbt, btsize);
2260
2261 if (rbt->bt_objset == 0) /* concurrent free */
2262 return;
2263
2264 if (wbt->bt_objset == 0) /* all-zero overwrite */
2265 return;
2266
2267 ASSERT3U(rbt->bt_objset, ==, wbt->bt_objset);
2268 ASSERT3U(rbt->bt_object, ==, wbt->bt_object);
2269 ASSERT3U(rbt->bt_offset, ==, wbt->bt_offset);
2270
2271 /*
2272 * The semantic of dmu_sync() is that we always push the most recent
2273 * version of the data, so in the face of concurrent updates we may
2274 * see a newer version of the block. That's OK.
2275 */
2276 ASSERT3U(rbt->bt_txg, >=, wbt->bt_txg);
2277 if (rbt->bt_thread == wbt->bt_thread)
2278 ASSERT3U(rbt->bt_seq, ==, wbt->bt_seq);
2279 else
2280 ASSERT3U(rbt->bt_seq, >, wbt->bt_seq);
2281}
2282
2283/*
2284 * Verify that zap_{create,destroy,add,remove,update} work as expected.
2285 */
2286#define ZTEST_ZAP_MIN_INTS 1
2287#define ZTEST_ZAP_MAX_INTS 4
2288#define ZTEST_ZAP_MAX_PROPS 1000
2289
2290void
2291ztest_zap(ztest_args_t *za)
2292{
2293 objset_t *os = za->za_os;
2294 uint64_t object;
2295 uint64_t txg, last_txg;
2296 uint64_t value[ZTEST_ZAP_MAX_INTS];
2297 uint64_t zl_ints, zl_intsize, prop;
2298 int i, ints;
2299 dmu_tx_t *tx;
2300 char propname[100], txgname[100];
2301 int error;
2302 char osname[MAXNAMELEN];
2303 char *hc[2] = { "s.acl.h", ".s.open.h.hyLZlg" };
2304
2305 dmu_objset_name(os, osname);
2306

--- 47 unchanged lines hidden (view full) ---

2354 ASSERT3U(error, ==, 0);
2355 }
2356
2357 dmu_tx_commit(tx);
2358 }
2359
2360 ints = MAX(ZTEST_ZAP_MIN_INTS, object % ZTEST_ZAP_MAX_INTS);
2361
2362 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
2363 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
2364 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
2365 bzero(value, sizeof (value));
2366 last_txg = 0;
2367
2368 /*
2369 * If these zap entries already exist, validate their contents.
2370 */
2371 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
2372 if (error == 0) {
2373 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
2374 ASSERT3U(zl_ints, ==, 1);
2375
2376 VERIFY(zap_lookup(os, object, txgname, zl_intsize,
2377 zl_ints, &last_txg) == 0);
2378
2379 VERIFY(zap_length(os, object, propname, &zl_intsize,
2380 &zl_ints) == 0);
2381
2382 ASSERT3U(zl_intsize, ==, sizeof (uint64_t));
2383 ASSERT3U(zl_ints, ==, ints);
2384
2385 VERIFY(zap_lookup(os, object, propname, zl_intsize,
2386 zl_ints, value) == 0);
2387
2388 for (i = 0; i < ints; i++) {
2389 ASSERT3U(value[i], ==, last_txg + object + i);
2390 }
2391 } else {
2392 ASSERT3U(error, ==, ENOENT);
2393 }
2394
2395 /*
2396 * Atomically update two entries in our zap object.
2397 * The first is named txg_%llu, and contains the txg
2398 * in which the property was last updated. The second
2399 * is named prop_%llu, and the nth element of its value
2400 * should be txg + object + n.
2401 */
2402 tx = dmu_tx_create(os);
2403 dmu_tx_hold_zap(tx, object, TRUE, NULL);
2404 error = dmu_tx_assign(tx, TXG_WAIT);
2405 if (error) {
2406 ztest_record_enospc("create zap entry");
2407 dmu_tx_abort(tx);
2408 return;
2409 }
2410 txg = dmu_tx_get_txg(tx);
2411
2412 if (last_txg > txg)
2413 fatal(0, "zap future leak: old %llu new %llu", last_txg, txg);
2414
2415 for (i = 0; i < ints; i++)
2416 value[i] = txg + object + i;
2417
2418 error = zap_update(os, object, txgname, sizeof (uint64_t), 1, &txg, tx);
2419 if (error)
2420 fatal(0, "zap_update('%s', %llu, '%s') = %d",
2421 osname, object, txgname, error);
2422
2423 error = zap_update(os, object, propname, sizeof (uint64_t),
2424 ints, value, tx);
2425 if (error)
2426 fatal(0, "zap_update('%s', %llu, '%s') = %d",
2427 osname, object, propname, error);
2428
2429 dmu_tx_commit(tx);
2430
2431 /*
2432 * Remove a random pair of entries.
2433 */
2434 prop = ztest_random(ZTEST_ZAP_MAX_PROPS);
2435 (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
2436 (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
2437
2438 error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
2439
2440 if (error == ENOENT)
2441 return;
2442
2443 ASSERT3U(error, ==, 0);
2444
2445 tx = dmu_tx_create(os);
2446 dmu_tx_hold_zap(tx, object, TRUE, NULL);
2447 error = dmu_tx_assign(tx, TXG_WAIT);
2448 if (error) {
2449 ztest_record_enospc("remove zap entry");
2450 dmu_tx_abort(tx);
2451 return;
2452 }
2453 error = zap_remove(os, object, txgname, tx);
2454 if (error)
2455 fatal(0, "zap_remove('%s', %llu, '%s') = %d",
2456 osname, object, txgname, error);
2457
2458 error = zap_remove(os, object, propname, tx);
2459 if (error)
2460 fatal(0, "zap_remove('%s', %llu, '%s') = %d",
2461 osname, object, propname, error);
2462
2463 dmu_tx_commit(tx);
2464
2465 /*
2466 * Once in a while, destroy the object.
2467 */
2468 if (ztest_random(1000) != 0)
2469 return;
2470
2471 tx = dmu_tx_create(os);
2472 dmu_tx_hold_write(tx, ZTEST_DIROBJ, za->za_diroff, sizeof (uint64_t));
2473 dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END);
2474 error = dmu_tx_assign(tx, TXG_WAIT);
2475 if (error) {
2476 ztest_record_enospc("destroy zap object");

--- 10 unchanged lines hidden (view full) ---

2487 dmu_tx_commit(tx);
2488}
2489
2490void
2491ztest_zap_parallel(ztest_args_t *za)
2492{
2493 objset_t *os = za->za_os;
2494 uint64_t txg, object, count, wsize, wc, zl_wsize, zl_wc;
2495 dmu_tx_t *tx;
2496 int i, namelen, error;
2497 char name[20], string_value[20];
2498 void *data;
2499
2500 /*
2501 * Generate a random name of the form 'xxx.....' where each
2502 * x is a random printable character and the dots are dots.
2503 * There are 94 such characters, and the name length goes from
2504 * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
2505 */
2506 namelen = ztest_random(sizeof (name) - 5) + 5 + 1;
2507
2508 for (i = 0; i < 3; i++)
2509 name[i] = '!' + ztest_random('~' - '!' + 1);
2510 for (; i < namelen - 1; i++)
2511 name[i] = '.';
2512 name[i] = '\0';
2513
2514 if (ztest_random(2) == 0)
2515 object = ZTEST_MICROZAP_OBJ;
2516 else
2517 object = ZTEST_FATZAP_OBJ;
2518
2519 if ((namelen & 1) || object == ZTEST_MICROZAP_OBJ) {
2520 wsize = sizeof (txg);
2521 wc = 1;
2522 data = &txg;
2523 } else {
2524 wsize = 1;
2525 wc = namelen;
2526 data = string_value;
2527 }
2528
2529 count = -1ULL;
2530 VERIFY(zap_count(os, object, &count) == 0);
2531 ASSERT(count != -1ULL);
2532
2533 /*
2534 * Select an operation: length, lookup, add, update, remove.
2535 */
2536 i = ztest_random(5);
2537
2538 if (i >= 2) {
2539 tx = dmu_tx_create(os);
2540 dmu_tx_hold_zap(tx, object, TRUE, NULL);
2541 error = dmu_tx_assign(tx, TXG_WAIT);
2542 if (error) {
2543 ztest_record_enospc("zap parallel");
2544 dmu_tx_abort(tx);
2545 return;
2546 }
2547 txg = dmu_tx_get_txg(tx);
2548 bcopy(name, string_value, namelen);
2549 } else {
2550 tx = NULL;
2551 txg = 0;
2552 bzero(string_value, namelen);
2553 }
2554
2555 switch (i) {
2556
2557 case 0:
2558 error = zap_length(os, object, name, &zl_wsize, &zl_wc);
2559 if (error == 0) {
2560 ASSERT3U(wsize, ==, zl_wsize);
2561 ASSERT3U(wc, ==, zl_wc);
2562 } else {
2563 ASSERT3U(error, ==, ENOENT);
2564 }
2565 break;
2566
2567 case 1:
2568 error = zap_lookup(os, object, name, wsize, wc, data);
2569 if (error == 0) {
2570 if (data == string_value &&
2571 bcmp(name, data, namelen) != 0)
2572 fatal(0, "name '%s' != val '%s' len %d",
2573 name, data, namelen);
2574 } else {
2575 ASSERT3U(error, ==, ENOENT);
2576 }
2577 break;
2578
2579 case 2:
2580 error = zap_add(os, object, name, wsize, wc, data, tx);
2581 ASSERT(error == 0 || error == EEXIST);
2582 break;
2583
2584 case 3:
2585 VERIFY(zap_update(os, object, name, wsize, wc, data, tx) == 0);
2586 break;
2587
2588 case 4:
2589 error = zap_remove(os, object, name, tx);
2590 ASSERT(error == 0 || error == ENOENT);
2591 break;
2592 }
2593
2594 if (tx != NULL)
2595 dmu_tx_commit(tx);
2596}
2597
2598void
2599ztest_dsl_prop_get_set(ztest_args_t *za)
2600{
2601 objset_t *os = za->za_os;
2602 int i, inherit;
2603 uint64_t value;

--- 39 unchanged lines hidden (view full) ---

2643 (void) printf("%s %s = %s for '%s'\n",
2644 osname, prop, valname, setpoint);
2645 }
2646 }
2647
2648 (void) rw_unlock(&ztest_shared->zs_name_lock);
2649}
2650
2651/*
2652 * Inject random faults into the on-disk data.
2653 */
2654void
2655ztest_fault_inject(ztest_args_t *za)
2656{
2657 int fd;
2658 uint64_t offset;
2659 uint64_t leaves = MAX(zopt_mirrors, 1) * zopt_raidz;
2660 uint64_t bad = 0x1990c0ffeedecadeULL;
2661 uint64_t top, leaf;
2662 char path0[MAXPATHLEN];
2663 char pathrand[MAXPATHLEN];
2664 size_t fsize;
2665 spa_t *spa = za->za_spa;
2666 int bshift = SPA_MAXBLOCKSHIFT + 2; /* don't scrog all labels */
2667 int iters = 1000;
2668 int maxfaults = zopt_maxfaults;
2669 vdev_t *vd0 = NULL;
2670 uint64_t guid0 = 0;
2671
2672 ASSERT(leaves >= 1);
2673
2674 /*
2675 * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
2676 */
2677 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
2678
2679 if (ztest_random(2) == 0) {
2680 /*
2681 * Inject errors on a normal data device.
2682 */
2683 top = ztest_random(spa->spa_root_vdev->vdev_children);
2684 leaf = ztest_random(leaves);
2685
2686 /*
2687 * Generate paths to the first leaf in this top-level vdev,
2688 * and to the random leaf we selected. We'll induce transient
2689 * write failures and random online/offline activity on leaf 0,
2690 * and we'll write random garbage to the randomly chosen leaf.
2691 */
2692 (void) snprintf(path0, sizeof (path0), ztest_dev_template,
2693 zopt_dir, zopt_pool, top * leaves + 0);
2694 (void) snprintf(pathrand, sizeof (pathrand), ztest_dev_template,
2695 zopt_dir, zopt_pool, top * leaves + leaf);
2696
2697 vd0 = vdev_lookup_by_path(spa->spa_root_vdev, path0);
2698 if (vd0 != NULL && maxfaults != 1) {
2699 /*
2700 * Make vd0 explicitly claim to be unreadable,
2701 * or unwriteable, or reach behind its back
2702 * and close the underlying fd. We can do this if
2703 * maxfaults == 0 because we'll fail and reexecute,
2704 * and we can do it if maxfaults >= 2 because we'll
2705 * have enough redundancy. If maxfaults == 1, the
2706 * combination of this with injection of random data
2707 * corruption below exceeds the pool's fault tolerance.
2708 */
2709 vdev_file_t *vf = vd0->vdev_tsd;
2710
2711 if (vf != NULL && ztest_random(3) == 0) {
2712 (void) close(vf->vf_vnode->v_fd);
2713 vf->vf_vnode->v_fd = -1;
2714 } else if (ztest_random(2) == 0) {
2715 vd0->vdev_cant_read = B_TRUE;
2716 } else {
2717 vd0->vdev_cant_write = B_TRUE;
2718 }
2719 guid0 = vd0->vdev_guid;
2720 }
2721 } else {
2722 /*
2723 * Inject errors on an l2cache device.
2724 */
2725 spa_aux_vdev_t *sav = &spa->spa_l2cache;
2726
2727 if (sav->sav_count == 0) {
2728 spa_config_exit(spa, SCL_STATE, FTAG);
2729 return;
2730 }
2731 vd0 = sav->sav_vdevs[ztest_random(sav->sav_count)];
2732 guid0 = vd0->vdev_guid;
2733 (void) strcpy(path0, vd0->vdev_path);
2734 (void) strcpy(pathrand, vd0->vdev_path);
2735
2736 leaf = 0;
2737 leaves = 1;
2738 maxfaults = INT_MAX; /* no limit on cache devices */
2739 }
2740
2741 dprintf("damaging %s and %s\n", path0, pathrand);
2742
2743 spa_config_exit(spa, SCL_STATE, FTAG);
2744
2745 if (maxfaults == 0)
2746 return;
2747
2748 /*
2749 * If we can tolerate two or more faults, randomly online/offline vd0.
2750 */
2751 if (maxfaults >= 2 && guid0 != 0) {
2752 if (ztest_random(10) < 6)
2753 (void) vdev_offline(spa, guid0, B_TRUE);
2754 else
2755 (void) vdev_online(spa, guid0, B_FALSE, NULL);
2756 }
2757
2758 /*
2759 * We have at least single-fault tolerance, so inject data corruption.
2760 */
2761 fd = open(pathrand, O_RDWR);
2762
2763 if (fd == -1) /* we hit a gap in the device namespace */

--- 22 unchanged lines hidden (view full) ---

2786}
2787
2788/*
2789 * Scrub the pool.
2790 */
2791void
2792ztest_scrub(ztest_args_t *za)
2793{
2794 spa_t *spa = za->za_spa;
2795
2796 (void) spa_scrub(spa, POOL_SCRUB_EVERYTHING);
2797 (void) poll(NULL, 0, 1000); /* wait a second, then force a restart */
2798 (void) spa_scrub(spa, POOL_SCRUB_EVERYTHING);
2799}
2800
2801/*
2802 * Rename the pool to a different name and then rename it back.
2803 */
2804void
2805ztest_spa_rename(ztest_args_t *za)
2806{

--- 25 unchanged lines hidden (view full) ---

2832
2833 /*
2834 * Open it under the new name and make sure it's still the same spa_t.
2835 */
2836 error = spa_open(newname, &spa, FTAG);
2837 if (error != 0)
2838 fatal(0, "spa_open('%s') = %d", newname, error);
2839
2840 ASSERT(spa == za->za_spa);
2841 spa_close(spa, FTAG);
2842
2843 /*
2844 * Rename it back to the original
2845 */
2846 error = spa_rename(newname, oldname);
2847 if (error)
2848 fatal(0, "spa_rename('%s', '%s') = %d", newname,
2849 oldname, error);
2850
2851 /*
2852 * Make sure it can still be opened
2853 */
2854 error = spa_open(oldname, &spa, FTAG);
2855 if (error != 0)
2856 fatal(0, "spa_open('%s') = %d", oldname, error);
2857
2858 ASSERT(spa == za->za_spa);
2859 spa_close(spa, FTAG);
2860
2861 umem_free(newname, strlen(newname) + 1);
2862
2863 (void) rw_unlock(&ztest_shared->zs_name_lock);
2864}
2865
2866

--- 37 unchanged lines hidden (view full) ---

2904 VERIFY(ftruncate(fd, fsize) == 0);
2905 (void) close(fd);
2906}
2907
2908static void
2909ztest_replace_one_disk(spa_t *spa, uint64_t vdev)
2910{
2911 char dev_name[MAXPATHLEN];
2912 nvlist_t *root;
2913 int error;
2914 uint64_t guid;
2915 vdev_t *vd;
2916
2917 (void) sprintf(dev_name, ztest_dev_template, zopt_dir, zopt_pool, vdev);
2918
2919 /*
2920 * Build the nvlist describing dev_name.
2921 */
2922 root = make_vdev_root(dev_name, NULL, 0, 0, 0, 0, 0, 1);
2923
2924 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
2925 if ((vd = vdev_lookup_by_path(spa->spa_root_vdev, dev_name)) == NULL)
2926 guid = 0;
2927 else
2928 guid = vd->vdev_guid;
2929 spa_config_exit(spa, SCL_VDEV, FTAG);
2930 error = spa_vdev_attach(spa, guid, root, B_TRUE);
2931 if (error != 0 &&
2932 error != EBUSY &&
2933 error != ENOTSUP &&
2934 error != ENODEV &&
2935 error != EDOM)
2936 fatal(0, "spa_vdev_attach(in-place) = %d", error);
2937
2938 nvlist_free(root);
2939}
2940
2941static void
2942ztest_verify_blocks(char *pool)
2943{
2944 int status;
2945 char zdb[MAXPATHLEN + MAXNAMELEN + 20];
2946 char zbuf[1024];
2947 char *bin;
2948 char *ztest;
2949 char *isa;
2950 int isalen;
2951 FILE *fp;
2952
2953 if (realpath(progname, zdb) == NULL)
2954 assert(!"realpath() failed");
2955
2956 /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
2957 bin = strstr(zdb, "/usr/bin/");
2958 ztest = strstr(bin, "/ztest");
2959 isa = bin + 8;
2960 isalen = ztest - isa;
2961 isa = strdup(isa);
2962 /* LINTED */
2963 (void) sprintf(bin,
2964 "/usr/sbin%.*s/zdb -bc%s%s -U /tmp/zpool.cache -O %s %s",
2965 isalen,
2966 isa,
2967 zopt_verbose >= 3 ? "s" : "",
2968 zopt_verbose >= 4 ? "v" : "",
2969 ztest_random(2) == 0 ? "pre" : "post", pool);
2970 free(isa);
2971
2972 if (zopt_verbose >= 5)
2973 (void) printf("Executing %s\n", strstr(zdb, "zdb "));
2974
2975 fp = popen(zdb, "r");
2976 assert(fp != NULL);
2977
2978 while (fgets(zbuf, sizeof (zbuf), fp) != NULL)

--- 55 unchanged lines hidden (view full) ---

3034 pool_guid = spa_guid(spa);
3035 spa_close(spa, FTAG);
3036
3037 ztest_walk_pool_directory("pools before export");
3038
3039 /*
3040 * Export it.
3041 */
3042 error = spa_export(oldname, &config, B_FALSE);
3043 if (error)
3044 fatal(0, "spa_export('%s') = %d", oldname, error);
3045
3046 ztest_walk_pool_directory("pools after export");
3047
3048 /*
3049 * Import it under the new name.
3050 */

--- 32 unchanged lines hidden (view full) ---

3083 fatal(0, "spa_open('%s') = %d", newname, error);
3084 ASSERT(pool_guid == spa_guid(spa));
3085 spa_close(spa, FTAG);
3086
3087 nvlist_free(config);
3088}
3089
3090static void *
3091ztest_resume(void *arg)
3092{
3093 spa_t *spa = arg;
3094
3095 while (!ztest_exiting) {
3096 (void) poll(NULL, 0, 1000);
3097
3098 if (!spa_suspended(spa))
3099 continue;
3100
3101 spa_vdev_state_enter(spa);
3102 vdev_clear(spa, NULL);
3103 (void) spa_vdev_state_exit(spa, NULL, 0);
3104
3105 zio_resume(spa);
3106 }
3107 return (NULL);
3108}
3109
3110static void *
3111ztest_thread(void *arg)
3112{
3113 ztest_args_t *za = arg;
3114 ztest_shared_t *zs = ztest_shared;
3115 hrtime_t now, functime;
3116 ztest_info_t *zi;
3117 int f, i;
3118
3119 while ((now = gethrtime()) < za->za_stop) {
3120 /*
3121 * See if it's time to force a crash.
3122 */
3123 if (now > za->za_kill) {
3124 zs->zs_alloc = spa_get_alloc(za->za_spa);
3125 zs->zs_space = spa_get_space(za->za_spa);
3126 (void) kill(getpid(), SIGKILL);
3127 }
3128
3129 /*
3130 * Pick a random function.
3131 */
3132 f = ztest_random(ZTEST_FUNCS);
3133 zi = &zs->zs_info[f];

--- 8 unchanged lines hidden (view full) ---

3142
3143 atomic_add_64(&zi->zi_calls, 1);
3144 atomic_add_64(&zi->zi_call_total, 1);
3145
3146 za->za_diroff = (za->za_instance * ZTEST_FUNCS + f) *
3147 ZTEST_DIRSIZE;
3148 za->za_diroff_shared = (1ULL << 63);
3149
3150 for (i = 0; i < zi->zi_iters; i++)
3151 zi->zi_func(za);
3152
3153 functime = gethrtime() - now;
3154
3155 atomic_add_64(&zi->zi_call_time, functime);
3156
3157 if (zopt_verbose >= 4) {
3158 Dl_info dli;
3159 (void) dladdr((void *)zi->zi_func, &dli);
3160 (void) printf("%6.2f sec in %s\n",

--- 16 unchanged lines hidden (view full) ---

3177static void
3178ztest_run(char *pool)
3179{
3180 int t, d, error;
3181 ztest_shared_t *zs = ztest_shared;
3182 ztest_args_t *za;
3183 spa_t *spa;
3184 char name[100];
3185 thread_t resume_tid;
3186
3187 ztest_exiting = B_FALSE;
3188
3189 (void) _mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL);
3190 (void) rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL);
3191
3192 for (t = 0; t < ZTEST_SYNC_LOCKS; t++)
3193 (void) _mutex_init(&zs->zs_sync_lock[t], USYNC_THREAD, NULL);
3194
3195 /*
3196 * Destroy one disk before we even start.

--- 7 unchanged lines hidden (view full) ---

3204 * equals the SPA's allocated space total.
3205 */
3206 ztest_verify_blocks(pool);
3207
3208 /*
3209 * Kick off a replacement of the disk we just obliterated.
3210 */
3211 kernel_init(FREAD | FWRITE);
3212 VERIFY(spa_open(pool, &spa, FTAG) == 0);
3213 ztest_replace_one_disk(spa, 0);
3214 if (zopt_verbose >= 5)
3215 show_pool_stats(spa);
3216 spa_close(spa, FTAG);
3217 kernel_fini();
3218
3219 kernel_init(FREAD | FWRITE);
3220

--- 16 unchanged lines hidden (view full) ---

3237 (void) printf("spa_next: found %s\n", spa_name(spa));
3238 }
3239 }
3240 mutex_exit(&spa_namespace_lock);
3241
3242 /*
3243 * Open our pool.
3244 */
3245 VERIFY(spa_open(pool, &spa, FTAG) == 0);
3246
3247 /*
3248 * Create a thread to periodically resume suspended I/O.
3249 */
3250 VERIFY(thr_create(0, 0, ztest_resume, spa, THR_BOUND,
3251 &resume_tid) == 0);
3252
3253 /*
3254 * Verify that we can safely inquire about about any object,
3255 * whether it's allocated or not. To make it interesting,
3256 * we probe a 5-wide window around each power of two.
3257 * This hits all edge cases, including zero and the max.
3258 */
3259 for (t = 0; t < 64; t++) {
3260 for (d = -5; d <= 5; d++) {
3261 error = dmu_object_info(spa->spa_meta_objset,

--- 17 unchanged lines hidden (view full) ---

3279 za[0].za_stop = za[0].za_start + zopt_passtime * NANOSEC;
3280 za[0].za_stop = MIN(za[0].za_stop, zs->zs_stop_time);
3281 za[0].za_kill = za[0].za_stop;
3282 if (ztest_random(100) < zopt_killrate)
3283 za[0].za_kill -= ztest_random(zopt_passtime * NANOSEC);
3284
3285 for (t = 0; t < zopt_threads; t++) {
3286 d = t % zopt_datasets;
3287
3288 (void) strcpy(za[t].za_pool, pool);
3289 za[t].za_os = za[d].za_os;
3290 za[t].za_spa = spa;
3291 za[t].za_zilog = za[d].za_zilog;
3292 za[t].za_instance = t;
3293 za[t].za_random = ztest_random(-1ULL);
3294 za[t].za_start = za[0].za_start;
3295 za[t].za_stop = za[0].za_stop;
3296 za[t].za_kill = za[0].za_kill;
3297
3298 if (t < zopt_datasets) {
3299 ztest_replay_t zr;
3300 int test_future = FALSE;
3301 (void) rw_rdlock(&ztest_shared->zs_name_lock);
3302 (void) snprintf(name, 100, "%s/%s_%d", pool, pool, d);
3303 error = dmu_objset_create(name, DMU_OST_OTHER, NULL, 0,
3304 ztest_create_cb, NULL);
3305 if (error == EEXIST) {
3306 test_future = TRUE;
3307 } else if (error == ENOSPC) {
3308 zs->zs_enospc_count++;
3309 (void) rw_unlock(&ztest_shared->zs_name_lock);
3310 break;
3311 } else if (error != 0) {
3312 fatal(0, "dmu_objset_create(%s) = %d",
3313 name, error);
3314 }
3315 error = dmu_objset_open(name, DMU_OST_OTHER,
3316 DS_MODE_USER, &za[d].za_os);
3317 if (error)
3318 fatal(0, "dmu_objset_open('%s') = %d",
3319 name, error);
3320 (void) rw_unlock(&ztest_shared->zs_name_lock);
3321 if (test_future)
3322 ztest_dmu_check_future_leak(&za[t]);
3323 zr.zr_os = za[d].za_os;
3324 zil_replay(zr.zr_os, &zr, &zr.zr_assign,
3325 ztest_replay_vector, NULL);
3326 za[d].za_zilog = zil_open(za[d].za_os, NULL);
3327 }
3328
3329 VERIFY(thr_create(0, 0, ztest_thread, &za[t], THR_BOUND,
3330 &za[t].za_thread) == 0);
3331 }
3332
3333 while (--t >= 0) {
3334 VERIFY(thr_join(za[t].za_thread, NULL, NULL) == 0);
3335 if (za[t].za_th)
3336 traverse_fini(za[t].za_th);
3337 if (t < zopt_datasets) {
3338 zil_close(za[t].za_zilog);
3339 dmu_objset_close(za[t].za_os);
3340 }
3341 }
3342
3343 if (zopt_verbose >= 3)
3344 show_pool_stats(spa);
3345
3346 txg_wait_synced(spa_get_dsl(spa), 0);
3347
3348 zs->zs_alloc = spa_get_alloc(spa);
3349 zs->zs_space = spa_get_space(spa);
3350
3351 /*
3352 * If we had out-of-space errors, destroy a random objset.
3353 */
3354 if (zs->zs_enospc_count != 0) {
3355 (void) rw_rdlock(&ztest_shared->zs_name_lock);
3356 d = (int)ztest_random(zopt_datasets);
3357 (void) snprintf(name, 100, "%s/%s_%d", pool, pool, d);
3358 if (zopt_verbose >= 3)
3359 (void) printf("Destroying %s to free up space\n", name);
3360 (void) dmu_objset_find(name, ztest_destroy_cb, &za[d],
3361 DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN);
3362 (void) rw_unlock(&ztest_shared->zs_name_lock);
3363 }
3364
3365 txg_wait_synced(spa_get_dsl(spa), 0);
3366
3367 umem_free(za, zopt_threads * sizeof (ztest_args_t));
3368
3369 /* Kill the resume thread */
3370 ztest_exiting = B_TRUE;
3371 VERIFY(thr_join(resume_tid, NULL, NULL) == 0);
3372
3373 /*
3374 * Right before closing the pool, kick off a bunch of async I/O;
3375 * spa_close() should wait for it to complete.
3376 */
3377 for (t = 1; t < 50; t++)
3378 dmu_prefetch(spa->spa_meta_objset, t, 0, 1 << 15);
3379
3380 spa_close(spa, FTAG);

--- 39 unchanged lines hidden (view full) ---

3420
3421 kernel_init(FREAD | FWRITE);
3422
3423 /*
3424 * Create the storage pool.
3425 */
3426 (void) spa_destroy(pool);
3427 ztest_shared->zs_vdev_primaries = 0;
3428 nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0,
3429 0, zopt_raidz, zopt_mirrors, 1);
3430 error = spa_create(pool, nvroot, NULL, NULL, NULL);
3431 nvlist_free(nvroot);
3432
3433 if (error)
3434 fatal(0, "spa_create() = %d", error);
3435 error = spa_open(pool, &spa, FTAG);
3436 if (error)
3437 fatal(0, "spa_open() = %d", error);
3438

--- 14 unchanged lines hidden (view full) ---

3453 ztest_shared_t *zs;
3454 ztest_info_t *zi;
3455 char timebuf[100];
3456 char numbuf[6];
3457
3458 (void) setvbuf(stdout, NULL, _IOLBF, 0);
3459
3460 /* Override location of zpool.cache */
3461 spa_config_path = "/tmp/zpool.cache";
3462
3463 ztest_random_fd = open("/dev/urandom", O_RDONLY);
3464
3465 process_options(argc, argv);
3466
3467 argc -= optind;
3468 argv += optind;
3469

--- 164 unchanged lines hidden ---