On Sun, 2017-03-19 at 17:02 +0100, Gerhard Wiesinger wrote: > mount | grep cgroup
Just because controllers are mounted doesn't mean they're populated. To
check that, you want to look for directories under the mount points
with a non-empty 'tasks'. You will find some, but memory cgroup
assignments would likely be most interesting for this thread. You can
eliminate any diddling there by booting with cgroup_disable=memory.
-Mike
