Re: [libvirt-users] cgroup error starting domains
On Thu, Jun 06, 2013 at 06:26:23PM +0200, Matteo Bernardini wrote:
On 05/22/2013 11:01 AM, Matteo Bernardini wrote:
> Hi,
>
> I've got a small problem using libvirt-1.0.5.1 (with the latest patch in
> the v1.0.5-maint branch on git added).
> I'm using slackware64-14.0 but the situation is exactly the same described
> on a debian bug
>
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=707201
>
> When trying to start a domain I got
>
> error: Failed to start domain debian-wheezy-xfce
> error: Unable to initialize /machine cgroup: Invalid argument
>
> with this in libvirtd.log
>
> virCgroupDetect:373 : Failed to detect mounts for /machine
> qemuInitCgroup:425 : Unable to initialize /machine cgroup: Invalid argument
>
> and the error goes away if I unmount /sys/fs/cgroup.
>
> Reverting to 1.0.4 fixes this,
sorry, just to report the same effect with 1.0.6: this is my
/sys/fs/cgroup layout
http://pastebin.com/Gxsgb8KG
and this is the corresponding stuff in /var/lib/libvirt/libvirtd.log
(with log level 1) when I issue a
# virsh start s64cont
http://pastebin.com/Rhg3tSzt
as I've had a look at
http://libvirt.org/cgroups.html
I'm just wondering if systemd is necessary (we don't have it in
Slackware) or I'm simply missing something...
No, systemd is definitely /not/ mandatory. Can you provide your
/proc/mounts file contents
Libvirt seems to be failing to detect the mount points
2013-06-06 15:49:37.688+0000: 29305: debug : virCgroupNewPartition:1248 : path=/machine
create=1 controllers=5f
2013-06-06 15:49:37.688+0000: 29305: debug : virCgroupNew:808 : parent=(nil) path=/machine
controllers=95
2013-06-06 15:49:37.688+0000: 29305: debug : virCgroupDetect:359 : group=0x7f601007f6e0
controllers=95 path=/machine parent=(nil)
2013-06-06 15:49:37.688+0000: 29305: error : virCgroupDetect:366 : Failed to detect mounts
for /machine
2013-06-06 15:49:37.688+0000: 29305: error : qemuInitCgroup:733 : Unable to initialize
/machine cgroup: Invalid argument
also do you have anything in /etc/libvirt/qemu.conf set for the
cgroups controllers setting ?
Daniel
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