This bug was fixed in the package libvirt - 0.7.5-5ubuntu9
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libvirt (0.7.5-5ubuntu9) lucid; urgency=low
* debian/apparmor/libvirt-qemu:
- explicitly deny setpcap to silence denials. See LP: 522845 for details
- allow read access to /proc/*/status
*
** Changed in: libvirt (Ubuntu)
Status: Incomplete = Triaged
** Changed in: libvirt (Ubuntu)
Importance: Undecided = Medium
** Changed in: libvirt (Ubuntu)
Milestone: None = ubuntu-10.04
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starting kvm guest with disk file in /etc fails with apparmor error 'could not
remove