libvirt users - May 2013 - snapshot create error, unable to find cgroup for vm

Hello:
Yesterday I yum update libvirt from 0.9.10 to 0.10.2 ,after update I got
some error in libvirtd.log
 like this:
2013-05-10 07:39:09.440+0000: 18824: warning : virCgroupMoveTask:885 : no
vm cgroup in controller 3
2013-05-10 07:39:09.440+0000: 18824: warning : virCgroupMoveTask:885 : no
vm cgroup in controller 4
2013-05-10 07:39:09.440+0000: 18824: warning : virCgroupMoveTask:885 : no
vm cgroup in controller 6
so,I restarted cgconfig and libvirtd daemon :

service cgconfig restart ;
service libvirtd restart

after that ,I cannot create snapshot for vm anymore.and error log message
below:
2013-05-16 01:13:23.638+0000: 28848: error :
qemuDomainSnapshotCreateDiskActive:11299 : internal error Unable to find
cgroup for vm1

my version info :
# rpm -q libvirt
libvirt-0.10.2-18.el6_4.4.x86_64
# rpm -q qemu-kvm
qemu-kvm-0.12.1.2-2.295.el6_3.1.x86_64

in /cgroup dir I cannot find anything about vm1.how can I recover the
missing cgroup for vm ?
thanks !
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://listman.redhat.com/archives/libvirt-users/attachments/20130516/f5e07a5a/attachment.htm>

On 05/15/2013 07:32 PM, Gao Yongwei wrote:
> Hello:
> Yesterday I yum update libvirt from 0.9.10 to 0.10.2 ,after update I got
> some error in libvirtd.log
>  like this:
> 2013-05-10 07:39:09.440+0000: 18824: warning : virCgroupMoveTask:885 : no
> vm cgroup in controller 3
> 2013-05-10 07:39:09.440+0000: 18824: warning : virCgroupMoveTask:885 : no
> vm cgroup in controller 4
> 2013-05-10 07:39:09.440+0000: 18824: warning : virCgroupMoveTask:885 : no
> vm cgroup in controller 6
Red herring.  This is a warning, and has nothing to do with the actual
error (it has since been patched in upstream libvirt).
> so,I restarted cgconfig and libvirtd daemon :
> 
> service cgconfig restart ;
> service libvirtd restart
> 
> after that ,I cannot create snapshot for vm anymore.and error log message
> below:
> 2013-05-16 01:13:23.638+0000: 28848: error :
> qemuDomainSnapshotCreateDiskActive:11299 : internal error Unable to find
> cgroup for vm1
> 
> my version info :
> # rpm -q libvirt
> libvirt-0.10.2-18.el6_4.4.x86_64
Are you using RHEL? If so, please open a support incident with Red Hat.
 If not, can you reproduce the problem when you upgrade to libvirt 1.0.5?

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 621 bytes
Desc: OpenPGP digital signature
URL:
<http://listman.redhat.com/archives/libvirt-users/attachments/20130515/94c653ec/attachment.sig>