Re: [libvirt] Unable to create cgroup for driver
On Tue, Aug 11, 2009 at 6:00 PM, Daniel P. Berrange<berrange(a)redhat.com> wrote:
On Tue, Aug 11, 2009 at 10:03:32AM +0900, Jun Koi wrote:
> 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
That is not an error, it is a expected warning if you don't have any
cgroups mount. It is designed to continue working
Could you explain what is that cgroups mount, and why I need that??
The fact is that I never had this problem before (with older git version)
> Then it fails to start.
>
> How can I fix this?
You'll need to provide more information than this. What exactly fails
to start ? The entire daemon, just the QEMU driver, or something else ?
Does it exit, does it crash ? Get a debug log when it fails, etc
When I run "libvirtd -v", it simply reports error like:
"warning : qemudStartup:521 : Unable to create cgroup for driver: No
such device or address
Segmentation fault"
Thanks,
J