-684980 ON_QA https://bugzilla.redhat.com/show_bug.cgi?id=684980
- calling guestfs_kill_subprocess() then guestfs_close() causes a lockup in some applications
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-666578 ON_QA https://bugzilla.redhat.com/show_bug.cgi?id=666578
- libguestfs: unknown filesystem label SWAP-sda2