On Tue, Dec 02, 2008 at 02:05:28AM -0500, Mikulas Patocka wrote:
> Hi
>
> I fixed the ext2 bug (it was unsupported handling of buffer readahead) ---
> download the new version of patches from the same location.
>
> I couldn't reproduce the XFS bug. Please retry. Are you sure that you
> didn't try to mount the _snapshot_ as XFS? Snapshots are currently not
> writeable (they will be writeable in the final version), so attempting to
> mount the snapshot read/write would return i/o error to the filesystem and
> produce an error message similar to the one displayed.
The error message definitively looks like trying to mount a r/o snapshots
without -o ro,norecovery:
> > fs/xfs/xfs_rw.c. Return address = 0xffffffff8037d399
> > [ 2696.363710] Filesystem "dm-3": I/O Error Detected. Shutting down
> > filesystem: dm-3
> > [ 2696.368085] Please umount the filesystem, and rectify the problem(s)
> > [ 2696.371756] I/O error in filesystem ("dm-3") meta-data dev dm-3 block
> > 0x200022 ("xlog_bwrite") error 5 buf count 2097152
> > [ 2696.378402] XFS: failed to locate log tail
> > [ 2696.380797] XFS: log mount/recovery failed: error 5
> > [ 2696.405586] XFS: log mount failed
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