[libvirt] Lxc support

[Justin Clift]

On 10/30/2010 01:19 AM, Jean-Philippe Menil wrote:
<snip>
>>> root at redbreast:/tmp# cat /proc/15718/cgroup
>>> 1:blkio,net_cls,freezer,devices,memory,cpuacct,cpu,ns,debug,cpuset:/
>>
>> The problem is probably the 'blkio' controller combined with the 'ns'
>> controller. The 'blkio' controller will refuse to allow creation of
>> any child cgroups. This will cause the libvirt warning you see below.
>> It will also break the 'ns' cgroup, because that *requires* that you
>> can create child cgroups when creating a new container.

Is this the kind of thing we should a runtime check for, with
appropriate warning when detected?