Comment 14 for bug 420423

Since we have a report of this on an F-11 host too, it sounds like a guest kernel bug:

  http://www.redhat.com/archives/fedora-virt/2009-August/msg00000.html

But AFAICS, we should only get this if:

  1) There's is a read/write error on the disk image in the host. Of note
     here is that the disk image is an LVM volume /dev/rootvg64/rawhide

  2) The guest issues a SCSI command

Perhaps it's the serial number support:

  http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=1d589bb1

or the SG_IO passthru support:

  http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=1cde26f9

Both were added in 2.6.31-rc1