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    SubjectRe: Kernel crash in xfs_iflush_cluster (was Somebody take a look please!...)
    On Thu, Apr 15, 2010 at 09:00:49AM +0200, Janos Haar wrote:
    > Dave,
    >
    > The corruption + crash reproduced. (unfortunately)
    >
    > http://download.netcenter.hu/bughunt/20100413/messages-15
    >
    > Apr 14 01:06:33 alfa kernel: XFS mounting filesystem sdb2
    >
    > This was the point of the xfs_repair more times.

    OK, the inodes that are corrupted are different, so there's still
    something funky going on here. I still would suggest replacing the
    RAID controller to rule that out as the cause.

    FWIW, do you have any other servers with similar h/w, s/w and
    workloads? If so, are they seeing problems?

    Can you recompile the kernel with CONFIG_XFS_DEBUG enabled and
    reboot into it before you repair and remount the filesystem again?
    (i.e. so that we know that we have started with a clean filesystem
    and the debug kernel) I'm hoping that this will catch the corruption
    much sooner, perhaps before it gets to disk. Note that this will
    cause the machine to panic when corruption is detected, and it is
    much,much more careful about checking in memory structures so there
    is a CPU overhead involved as well.

    Cheers,

    Dave.
    --
    Dave Chinner
    david@fromorbit.com


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