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7d2868d5fc
mirror_zfs/module/zfs
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Brian Behlendorf 7d2868d5fc Skip bad DVAs during free by setting zfs_recover=1 
When a bad DVA is encountered in metaslab_free_dva() the system
should treat it as fatal.  This indicates that somehow a damaged
DVA was written to disk and that should be impossible.

However, we have seen a handful of reports over the years of pools
somehow being damaged in this way.  Since this damage can render
otherwise intact pools unimportable, and the consequence of skipping
the bad DVA is only leaked free space, it makes sense to provide
a mechanism to ignore the bad DVA.  Setting the zfs_recover=1 module
option will cause the DVA to be ignored which may allow the pool to
be imported.

Since zfs_recover=0 by default any pool attempting to free a bad DVA
will treat it as a fatal error preserving the current behavior.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3099
Issue #3090
Issue #2720
2015-02-13 16:02:04 -08:00
..
arc.c fix l2arc compression buffers leak 2015-02-03 16:54:16 -08:00
blkptr.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
bplist.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
bpobj.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
bptree.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dbuf_stats.c Skip evicting dbufs when walking the dbuf hash 2015-02-06 09:24:28 -08:00
dbuf.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
ddt_zap.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
ddt.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dmu_diff.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dmu_object.c Illumos 3693 - restore_object uses at least two transactions to restore an object 2014-10-21 15:26:50 -07:00
dmu_objset.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dmu_send.c Illumos 5162 - zfs recv should use loaned arc buffer to avoid copy 2014-10-21 16:32:11 -07:00
dmu_traverse.c Illumos 5311 - traverse_dnode may report success when it should not 2015-02-06 12:07:15 -08:00
dmu_tx.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dmu_zfetch.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dmu.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dnode_sync.c Illumos 5117 - spacemap reallocation can cause corruption 2014-09-08 09:42:39 -07:00
dnode.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_bookmark.c Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
dsl_dataset.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_deadlist.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_deleg.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
dsl_destroy.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_dir.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_pool.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_prop.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_scan.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
dsl_synctask.c Export symbols dsl_sync_task{_nowait} 2014-03-07 10:01:36 -08:00
dsl_userhold.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
fm.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
gzip.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
lz4.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
lzjb.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
Makefile.in Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
metaslab.c Skip bad DVAs during free by setting zfs_recover=1 2015-02-13 16:02:04 -08:00
range_tree.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
refcount.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
rrwlock.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
sa.c Fix SA header size accounting 2015-02-06 09:26:46 -08:00
sha256.c Add linux sha2 support 2010-08-31 13:41:59 -07:00
spa_boot.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_config.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
spa_errlog.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
spa_history.c Use kmem_vasprintf() in log_internal() 2015-01-21 15:30:24 -08:00
spa_misc.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
spa_stats.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
spa.c Use vmem_alloc() for nvlists 2015-02-10 11:00:08 -08:00
space_map.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
space_reftree.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
trace.c Remove duplicate typedefs from trace.h 2015-01-06 16:53:24 -08:00
txg.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
uberblock.c Illumos #3598 2013-10-31 14:58:04 -07:00
unique.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_cache.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_disk.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_file.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_label.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_mirror.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_missing.c Illumos #3598 2013-10-31 14:58:04 -07:00
vdev_queue.c Revert "Pre-allocate vdev I/O buffers" 2015-01-16 14:41:28 -08:00
vdev_raidz.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
vdev_root.c Illumos #3598 2013-10-31 14:58:04 -07:00
vdev.c Revert "Don't read space maps during import for readonly pools" 2015-02-09 16:56:59 -08:00
zap_leaf.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zap_micro.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zap.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfeature_common.c Illumos 4924 - LZ4 Compression for metadata 2014-10-20 16:17:49 -07:00
zfeature.c Illumos 4370, 4371 2014-07-28 14:29:58 -07:00
zfs_acl.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_byteswap.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zfs_ctldir.c Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
zfs_debug.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_dir.c Revert "Revert "Revert "Fix unlink/xattr deadlock""" 2014-08-11 16:12:36 -07:00
zfs_fm.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_fuid.c Illumos #3522 2013-10-30 14:51:27 -07:00
zfs_ioctl.c Use vmem_alloc() for nvlists 2015-02-10 11:00:08 -08:00
zfs_log.c Only commit the ZIL once in zpl_writepages() (msync() case). 2013-11-23 15:08:29 -08:00
zfs_onexit.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_replay.c Linux AIO Support 2014-09-05 15:11:43 -07:00
zfs_rlock.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_sa.c Revert "SA spill block cache" 2015-01-16 14:41:28 -08:00
zfs_vfsops.c Linux 3.12 compat: split shrinker has s_shrink 2015-01-20 14:07:59 -08:00
zfs_vnops.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zfs_znode.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zil.c Use zio buffers in zil_itx_create() 2015-02-02 11:20:41 -08:00
zio_checksum.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zio_compress.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zio_inject.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
zio.c Retire zio_cons()/zio_dest() 2015-02-10 16:09:49 -08:00
zle.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zpl_ctldir.c Fix readdir for .zfs/snapshot directory 2015-02-10 16:34:30 -08:00
zpl_export.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_file.c Linux 3.19 compat: file_inode was added 2015-02-10 11:24:51 -08:00
zpl_inode.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_super.c Linux 3.12 compat: split shrinker has s_shrink 2015-01-20 14:07:59 -08:00
zpl_xattr.c Change KM_PUSHPAGE -> KM_SLEEP 2015-01-16 14:41:26 -08:00
zrlock.c Remove duplicate typedefs from trace.h 2015-01-06 16:53:24 -08:00
zvol.c Handle closing an unopened ZVOL 2015-01-30 14:44:14 -08:00