[Lxc-users] cgroups permission problem

[Serge Hallyn]

Quoting John (john at neutrondawn.com):
> Guido,
> Alas, this appears to be the problem.  /cgroups/cgroup.clone_children 
> does not exist.
> 
> Thanks for the assistance, ill likely begin testing with a new kernel.  
> A workaround for this problem in RHEL/Centos that sidesteps the kernel 
> recompile issue is to permit containers to have access to all CPUs.  
> this will result in oversubscription however.

Note we *can* work around this in userspace by making sure that every
time we create a cgroup, we check whether cpuset is mounted there and,
if so, set cpus and mems.  Obviously it would be nicer if we didn't
have to add that code.  (But patches welcome :)