Re: OOM: Better, but still there on

[Michal Hocko]

On Fri 23-12-16 13:18:51, Nils Holland wrote:
> On Fri, Dec 23, 2016 at 11:51:57AM +0100, Michal Hocko wrote:
> > TL;DR
> > drop the last patch, check whether memory cgroup is enabled and retest
> > with cgroup_disable=memory to see whether this is memcg related and if
> > it is _not_ then try to test with the patch below
> 
> Right, it seems we might be looking in the right direction! So I
> removed the previous patch from my kernel and verified if memory
> cgroup was enabled, and indeed, it was. So I booted with
> cgroup_disable=memory and ran my ordinary test again ... and in fact,
> no ooms!

OK, thanks for confirmation. I could have figured that earlier. The
pagecache differences in such a short time should have raised the red
flag and point towards memcgs...

[...]
> > I would appreciate to stick with your setup to not pull new unknows into
> > the picture.
> 
> No problem! It's just likely that I won't be able to test during the
> following days until Dec 27th, but after that I should be back to
> normal and thus be able to run further tests in a timely fashion. :-)

no problem at all. I will try to cook up a patch in the mean time.
-- 
Michal Hocko
SUSE Labs