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

[Martin Kletzander]

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

Hopefully it'll give us more information on what's wrong.

Martin

On 07/03/2012 11:55 AM, xuejie chen wrote:
> Hi everyone,
> 
> I created a Desktop VM1 with all default settings and added a 2G Disk
> to the VM1 in WebAdmin.
> But when I run the vm, it returns failure with the follow error
> message in WebAdmin.
> "VM VM1 is down. Exit message: Unable to create cgroup for VM1"
> 
> My DateCenter contains one host(with OS is CentOS 6, VDSM version is
> 4.9.6 and libvirt version is 0.9.4) and one NFS domain.
> And The cgroup Directory have already exits on the host.
> But why cannot I run the VM1?
> 
> There are some error message in VDSM log
> --------
> File "/usr/lib64/python2.6/site-packages/libvirt.py", line 2087, in createXML
>    if ret is None: raise libvirtError('virDomainCreateXML() failed', conn=self)
> libvirtError: Unable to create cgroup for VM1: No such file or directory
> ----------
> 
> There are some error message in libvirt log
> ---------
> error : virNetClientProgramDispatchError:170 : Unable to create cgroup
> for VM1: No such file or directory"
> ---------
> 
> There are log files in attachment
> 
> 
> Best wishes,
> Xuejie Chen
> 
> 
> 
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