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| author | Tim Chase <[email protected]> | 2015-08-23 09:58:11 -0500 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2015-08-28 11:56:32 -0700 |
| commit | d439f63ff5ebc3ce0c96e8a284e9c642c4b7663c (patch) | |
| tree | ce81f03f9b4a7a8d3671bf429f6c9e7c6b9506ec /module/zfs/zio.c | |
| parent | 4cb7b9c5d42c831878e0cf90c845ed52a2a34d72 (diff) | |
Allow recovery from corrupted snapshot maps
If the ZAP object containing a snapshot map is corrupted due to an
unrecoverable checksum error or otherwise, dsl_dataset_name() will
normally panic the system due to its VERIFY.
This patch attempts to allow a recovery avenue from such situations by
manufacturing a descriptive snapshot name and then ignoring the error.
Scrubbing a pool with this type of corruption will then show the affected
object in the error list rather than panicking.
The recovery code is only enabled when the zfs_recover module parameter
is set.
Signed-off-by: Tim Chase <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #3705
Diffstat (limited to 'module/zfs/zio.c')
0 files changed, 0 insertions, 0 deletions