I have the same problem but the failure to start is the lxc driver(seg fault)
if I configure --without-lxc libvirtd comes up with the cgroup warning


From: Jun Koi <junkoi2004@gmail.com>
To: libvir-list@redhat.com
Sent: Tuesday, August 11, 2009 4:03:32 AM
Subject: [libvirt] Unable to create cgroup for driver

Hi,

The libvirt 0.7 has a following error when i start libvirtd:

warning : qemudStartup:521 : Unable to create cgroup for driver: No
such device or address

Then it fails to start.

How can I fix this?

Thanks,
J

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