[Users] Unable to run VM with "Unable to create cgroup" error message

[xuejie chen]

Hi,


2012/7/4 Martin Kletzander <mkletzan at redhat.com>:
> On 07/04/2012 02:36 PM, Andrew Cathrow wrote:
>>
>>
>> ----- Original Message -----
>>> From: "Martin Kletzander" <mkletzan at redhat.com>
>>> To: "xuejie chen" <xuejiechen52 at gmail.com>
>>> Cc: users at ovirt.org
>>> Sent: Wednesday, July 4, 2012 4:12:07 AM
>>> Subject: Re: [Users] Unable to run VM with "Unable to create cgroup" error message
>>>
>>> Hi,
>>>
>>> the only problem I could imagine is that there is really some
>>> directory
>>> missing, but you said it is there. Fromt his point I see two things
>>> you
>>> can try:
>>>  1) run libvirt with debugging output enabled [1]
>>>  2) try to create the directories manually
>>
>> Is the cgroupfs mounted?
>>
>
> I checked and libvirt should complain if it is not mounted. But to be
> sure, is it?
I do not know how to check it.
where the cgroupfs should be mounted to?

there are some cgroup directory infomation.
------------------
#ll /
.....
drwxr-xr-x.    3   root   root     0 Jul  2  16:56   cgroup
....
# ls /cgroup
cgroup.procs   cpu.cfs_period_us  cpu.cfs_quata_us ....
------------------------
there are user and group is root root.
Is it because the libvirt donot have permission to operate the cgroup?

Thanks a lot.
xuejie chen.