Comment 2 for bug 1427660

## Issue
libvirt fails to start in Precise-Icehouse deployments (stable charm set). Restarting libvirt AND nova-compute was necessary for me, as nova-compute had also died.

## nova-compute juju unit log
2015-04-07 21:29:17 INFO unit.nova-compute/0.ceph-relation-changed logger.go:40 subprocess.CalledProcessError: Command '['virsh', '-c', 'qemu:///system', 'secret-list']' returned non-zero exit status 1

## libvirtd.log from nova compute node
2015-04-07 21:26:22.456+0000: 7508: info : libvirt version: 1.2.2
2015-04-07 21:26:22.456+0000: 7508: error : virDriverLoadModule:79 : failed to load module /usr/lib/libvirt/connection-driver/libvirt_driver_storage.so /usr/lib/libvirt/connection-driver/libvirt_driver_storage.so: undefined symbol: rbd_create3

## versions
ubuntu@juju-osci-sv19-machine-13:~$ dpkg-query --show libvirt* nova* qemu-system-common qemu-utils
libvirt-bin 1.2.2-0ubuntu13.1.6~cloud2
libvirt0 1.2.2-0ubuntu13.1.6~cloud2
nova-common 1:2014.1.3-0ubuntu1~cloud0
nova-compute 1:2014.1.3-0ubuntu1~cloud0
nova-compute-hypervisor
nova-compute-kvm 1:2014.1.3-0ubuntu1~cloud0
nova-compute-libvirt 1:2014.1.3-0ubuntu1~cloud0
qemu-system-common 2.0.0+dfsg-2ubuntu1.6~cloud0
qemu-utils 2.0.0+dfsg-2ubuntu1.6~cloud0

ubuntu@juju-osci-sv19-machine-13:~$ uname -a
Linux juju-osci-sv19-machine-13 3.2.0-79-virtual #115-Ubuntu SMP Thu Mar 12 14:37:42 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

ubuntu@juju-osci-sv19-machine-13:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.5 LTS
Release: 12.04
Codename: precise

...

See this pastebin for a lot of detail:

http://paste.ubuntu.com/10768920/