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    SubjectRe: kernel BUG at filemap.c:843!
    Date
    Hi,

    I'm also having the exactly same problem.
    Tested with 2.4.19-xfs(checked out from SGI's CVS on Aug 10) on Redhat 7.2.
    Kernel and userland tools are compiled with gcc 2.91.66
    The following is the result of some tests:

    scsidisks -> xfs: OK
    scsidisks -> raid5 -> xfs: OK
    scsidisks -> lvm -> xfs: OK
    scsidisks -> raid0 -> lvm -> xfs: OK
    scsidisks -> raid1 -> lvm -> xfs: OK
    scsidisks -> raid5 -> lvm -> xfs: kernel BUG at filemap.c:843!

    This problem is always reproducible with the following shell script:

    #!/bin/sh
    mkraid /dev/md0
    vgcreate VolumeGroup /dev/md0
    lvcreate -L1G -nTestVolume VolumeGroup
    mkfs.xfs -f -d size=32m /dev/VolumeGroup/TestVolume
    mount -t xfs /dev/VolumeGroup/TestVolume
    /mnt -onoatime,nodiratime,usrquota,grpquota

    Whenever I run the above script, mount command always generates kernel oops.
    But, if I insert some delay as of the following, then mount goes well:


    #!/bin/sh
    mkraid /dev/md0
    vgcreate VolumeGroup /dev/md0
    lvcreate -L1G -nTestVolume VolumeGroup
    mkfs.xfs -f -d size=32m /dev/VolumeGroup/TestVolume
    sleep 1
    mount -t xfs /dev/VolumeGroup/TestVolume
    /mnt -onoatime,nodiratime,usrquota,grpquota

    JLee

    ----- Original Message -----
    From: "Dagfinn Ilmari Manns?er" <ilmari@ping.uio.no>
    To: <linux-kernel@vger.kernel.org>; <linux-xfs@oss.sgi.com>
    Sent: Sunday, August 11, 2002 8:27 PM
    Subject: kernel BUG at filemap.c:843!


    > Hi,
    >
    > I have been bitten a few times by the BUG() in unlock_page(), both
    > with 2.4.19-rc3-xfs and 2.4.19-xfs (the latter checked out from SGI's
    > CVS on Aug 10). The system is SCSI-only, with a raid5 array as an LVM
    > physical volume and XFS on all the volumes.
    >
    > Software-wise it's Debian Woody, but the kernel is compiled on a Sid
    > box with gcc 2.95.4-16.
    >
    > Attached are the decoded oops, the module list and the config.
    >
    > --
    > ilmari
    >
    >


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