Author: avg Date: Wed Jul 20 09:54:18 2016 New Revision: 303081 URL: https://svnweb.freebsd.org/changeset/base/303081
Log: 7163 ztest failures due to excess error injection illumos/illumos-gate@f34284d835bc555f987c1310df46c034c3101155 https://github.com/illumos/illumos-gate/commit/f34284d835bc555f987c1310df46c034c3101155 https://www.illumos.org/issues/7163 Running zloop from zfs-precommit hit this assertion: *panicstr/s 0xfffffd7fd7419370: assertion failed for thread 0xfffffd7fe29ed240, thread-id 577: parent != NULL, file ../../../uts/common/fs/zfs/dbuf.c, line 1827 $c libc.so.1`_lwp_kill+0xa() libc.so.1`_assfail+0x182(fffffd7ffb1c29fa, fffffd7ffb1cc028, 723) libc.so.1`assfail+0x19(fffffd7ffb1c29fa, fffffd7ffb1cc028, 723) libzpool.so.1`dbuf_dirty+0xc69(10e3bc10, 3601700) libzpool.so.1`dbuf_dirty+0x61e(10c73640, 3601700) libzpool.so.1`dbuf_dirty+0x61e(10e28280, 3601700) libzpool.so.1`dmu_buf_will_fill+0x64(10e28280, 3601700) libzpool.so.1`dmu_write+0x1b6(2c7e640, d, 400000002e000000, 200, 3717b40, 3601700) ztest_replay_write+0x568(4950d0, 3717a80, 0) ztest_write+0x125(4950d0, d, 400000002e000000, 200, 413f000) ztest_io+0x1bb(4950d0, d, 400000002e000000) ztest_dmu_write_parallel+0xaa(4950d0, 6) ztest_execute+0x83(1, 420c98, 6) ztest_thread+0xf4(6) libc.so.1`_thrp_setup+0x8a(fffffd7fe29ed240) libc.so.1`_lwp_start() This is another manifestation of ECKSUM in ztest: The lowest level ancestor that’s in memory is the L8 (topmost). The L7 ancestor is blkid 0x10: ::dbufs -O 0x2c7e640 -o d -l 7 |::dbuf addr object lvl blkid holds os 600be50 d 7 4 1 ztest/ds_6 719d880 d 7 0 4 ztest/ds_6 Reviewed by: George Wilson <george.wil...@delphix.com> Reviewed by: Paul Dagnelie <p...@delphix.com> Approved by: Robert Mustacchi <r...@joyent.com> Author: Matthew Ahrens <mahr...@delphix.com> Modified: vendor/illumos/dist/cmd/ztest/ztest.c Modified: vendor/illumos/dist/cmd/ztest/ztest.c ============================================================================== --- vendor/illumos/dist/cmd/ztest/ztest.c Wed Jul 20 09:53:46 2016 (r303080) +++ vendor/illumos/dist/cmd/ztest/ztest.c Wed Jul 20 09:54:18 2016 (r303081) @@ -4792,7 +4792,7 @@ ztest_fault_inject(ztest_ds_t *zd, uint6 char path0[MAXPATHLEN]; char pathrand[MAXPATHLEN]; size_t fsize; - int bshift = SPA_MAXBLOCKSHIFT + 2; /* don't scrog all labels */ + int bshift = SPA_MAXBLOCKSHIFT + 2; int iters = 1000; int maxfaults; int mirror_save; @@ -4982,7 +4982,29 @@ ztest_fault_inject(ztest_ds_t *zd, uint6 (leaves << bshift) + (leaf << bshift) + (ztest_random(1ULL << (bshift - 1)) & -8ULL); - if (offset >= fsize) + /* + * Only allow damage to the labels at one end of the vdev. + * + * If all labels are damaged, the device will be totally + * inaccessible, which will result in loss of data, + * because we also damage (parts of) the other side of + * the mirror/raidz. + * + * Additionally, we will always have both an even and an + * odd label, so that we can handle crashes in the + * middle of vdev_config_sync(). + */ + if ((leaf & 1) == 0 && offset < VDEV_LABEL_START_SIZE) + continue; + + /* + * The two end labels are stored at the "end" of the disk, but + * the end of the disk (vdev_psize) is aligned to + * sizeof (vdev_label_t). + */ + uint64_t psize = P2ALIGN(fsize, sizeof (vdev_label_t)); + if ((leaf & 1) == 1 && + offset + sizeof (bad) > psize - VDEV_LABEL_END_SIZE) continue; VERIFY(mutex_lock(&ztest_vdev_lock) == 0); _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
