Comment 6 for bug 1157626

2013-03-20 17:36:40.328+0000: 1189: debug : virCgroupSetValueStr:331 : Set value '/sys/fs/cgroup/de
vices/libvirt/qemu/vm2/devices.allow' to 'c 136:* rw'
2013-03-20 17:36:40.328+0000: 1189: debug : virFileClose:72 : Closed fd 24
2013-03-20 17:36:40.328+0000: 1189: warning : virAuditSend:135 : Failed to send audit message virt=kvm resrc=cgroup reason=allow vm="vm2" uuid=1984e56c-0217-563c-fb23-b344053b385e cgroup="/sys/fs/cgroup/devices/libvirt/qemu/vm2/" class=major category=pty maj=88 acl=rw: Operation not permitted
2013-03-20 17:36:40.328+0000: 1189: debug : virCgroupSetValueStr:331 : Set value '/sys/fs/cgroup/devices/libvirt/qemu/vm2/devices.allow' to 'c 1:3 rw'
2013-03-20 17:36:40.328+0000: 1189: debug : virFileClose:72 : Closed fd 24
2013-03-20 17:36:40.328+0000: 1189: warning : virAuditSend:135 : Failed to send audit message virt=kvm resrc=cgroup reason=allow vm="vm2" uuid=1984e56c-0217-563c-fb23-b344053b385e cgroup="/sys/fs/cgroup/devices/libvirt/qemu/vm2/" class=path path=/dev/null rdev=01:03 acl=rw: Operation not permitted
2013-03-20 17:36:40.328+0000: 1189: debug : virCgroupSetValueStr:331 : Set value '/sys/fs/cgroup/devices/libvirt/qemu/vm2/devices.allow' to 'c 1:7 rw'

Looks like something is preventing us from setting our devices cgroups