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    SubjectBug on barriers for virtio_blk device - end_request: I/O error, dev vda, sector 0
    Hello all,

    i ended up with some thiusands of errors after upgrading to 2.6.31.2
    like this one:

    end_request: I/O error, dev vda, sector 0
    end_request: I/O error, dev vda, sector 0
    end_request: I/O error, dev vda, sector 0
    end_request: I/O error, dev vda, sector 0

    I am using ocfs2 on top of drbd on top of LVM in a KVM guest that uses
    virtio_blk.

    The bug is already known, see here:
    https://bugzilla.redhat.com/show_bug.cgi?id=514901

    A patch exists and the problem has already been submitted here in the list.
    See here: http://lkml.org/lkml/2009/8/6/153

    That fix is not in 2.6.31 nor in 2.6.32-RCX

    Could you please consider pulling it and adding this fix for inclusion
    in 2.6.31.$next and also to mainline?

    Thanks.



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