Re: [tip:sched/urgent] sched/cgroup: Fix/cleanup cgroup teardown/init

[Greg Kroah-Hartman]

On Thu, Apr 28, 2016 at 11:36:09PM +0200, Peter Zijlstra wrote:
> On Thu, Apr 28, 2016 at 11:51:37AM -0700, Greg Kroah-Hartman wrote:
> > On Thu, Apr 28, 2016 at 08:40:32PM +0200, Peter Zijlstra wrote:
> > > 
> > > Greg,
> > > 
> > > It looks like the below patch missed 4.5 and I'm starting to get bug
> > > reports that look very much like this issue, could we get this patch
> > > lifted into 4.5-stable?
> > 
> > Sure, also added to 4.4-stable as that is where the bug for this was
> > fixed, according to the commit message.
> 
> I think this patch relies on the following two cgroup patches:
> 
> 8bb5ef79bc0f ("cgroup: make sure a parent css isn't freed before its children")

This was missing.

> aa226ff4a1ce ("cgroup: make sure a parent css isn't offlined before its children")

This was already in 4.4-stable, thanks for letting me know.

greg k-h