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| author | Marco Benatto <mbenatto@redhat.com> | 2019-02-01 20:12:20 +0300 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-02-12 03:07:00 +0300 |
| commit | d519da41e2b789f2cbd705cd8cec0bb92be4838d (patch) | |
| tree | 7a1c2826db60c4f907ba1f4d5ebe538f1a9acafd /Documentation/filesystems | |
| parent | e88db81645d36f945d11bd73ffff31dad148eaf8 (diff) | |
| download | linux-d519da41e2b789f2cbd705cd8cec0bb92be4838d.tar.xz | |
xfs: Introduce XFS_PTAG_VERIFIER_ERROR panic mask
Currently we have a few PTAGs in place allowing us to transform a filesystem
error in a BUG() call. However, we don't have a panic tag for corrupt
metadata, so introduce XFS_PTAG_VERIFIER_ERROR so that the administrator can
use the fs.xfs.panic_mask sysctl knob to convert any error detected by buffer
verifiers into a kernel panic.
Signed-off-by: Marco Benatto <mbenatto@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
[darrick: light editing of commit message]
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'Documentation/filesystems')
| -rw-r--r-- | Documentation/filesystems/xfs.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/filesystems/xfs.txt b/Documentation/filesystems/xfs.txt index 9ccfd1bc6201..a5cbb5e0e3db 100644 --- a/Documentation/filesystems/xfs.txt +++ b/Documentation/filesystems/xfs.txt @@ -272,7 +272,7 @@ The following sysctls are available for the XFS filesystem: XFS_ERRLEVEL_LOW: 1 XFS_ERRLEVEL_HIGH: 5 - fs.xfs.panic_mask (Min: 0 Default: 0 Max: 255) + fs.xfs.panic_mask (Min: 0 Default: 0 Max: 256) Causes certain error conditions to call BUG(). Value is a bitmask; OR together the tags which represent errors which should cause panics: @@ -285,6 +285,7 @@ The following sysctls are available for the XFS filesystem: XFS_PTAG_SHUTDOWN_IOERROR 0x00000020 XFS_PTAG_SHUTDOWN_LOGERROR 0x00000040 XFS_PTAG_FSBLOCK_ZERO 0x00000080 + XFS_PTAG_VERIFIER_ERROR 0x00000100 This option is intended for debugging only. |