That's a known problem. You don't have to remove them, merely disable
them, by running "chkconfig cgconfig off" and "ckconfig cgred off" and
rebooting. Then mount your cgroup on a common mount point. I get the
impression from Serge and Daniel that this problem can't be solved with
that kernel because that kernel doesn't support clone_children so you
don't have any recourse.
This sounds like my "failed" case in testing with libcgroup enabled.
The fact that it's mounted on /cgroup and not /sys/fs/cgroup does not
bode well all all.
1) uname -a
2) chkconfig cgconfig
You probably need to add a line to your /etc/fstab long the lines of
this:
cgroup /sys/fs/cgroup cgroup defaults 0 0
Then run the commands:
chkconfig cgconfig off
chkconfig cgred off
The reboot (I have NOT had luck manually unmounting those cgroups and
remounting as a single mount point).
If I understand Serge's comments correctly, we can not get the
multipoint mounts to work even with the patched and updated lxc package
due to the lack of "clone_children" in that kernel, so you need to
switch a single mount-point mount to get lxc to work. Then you don't
even need the multipoint patches to get it to work though you may have
tweaks to make.