[Pkg-libvirt-maintainers] Bug#732666: severity:serious, since it breaks the upgrade

[Solveig]

Severity: serious
found 732666 libvirt/1.2.0-1

thanks

Setting up libvirt-bin (1.2.0-1) ...
[ ok ] Stopping libvirt management daemon: libvirtd not running.
[....] Starting libvirt management daemon: libvirtdmount: special device
cgroup_memory does not exist
[warn] Can not mount cgroups layout ... (warning).
invoke-rc.d: initscript libvirt-bin, action "start" failed.
dpkg: error processing package libvirt-bin (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 libvirt-bin
E: Sub-process /usr/bin/dpkg returned an error code (1)

I increase the severity, since it breaks the upgrade.