On Wed, Mar 16, 2016 at 11:45:27AM +0100, Peter Zijlstra wrote: > This doesn't fix the problem that those zombies might actually still > want to use the cgroups they're tied to, as reported here: > > lkml.kernel.org/r/[email protected] > > I would strongly suggest to revert 2e91fa7f6d45 wholesale (and mark for > stable) and try again later.
For the record, this issue was caused by the cpu controller taking down its css too early during destruction at ->css_offline() and is fixed by switching to ->css_released() instead. Thanks. -- tejun
