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SubjectRe: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel
On Wed 11-01-17 12:05:44, Vlastimil Babka wrote:
> On 01/11/2017 11:50 AM, Ganapatrao Kulkarni wrote:
> > Hi,
> >
> > we are seeing OOM/stalls messages when we run ltp cpuset01(cpuset01 -I
> > 360) test for few minutes, even through the numa system has adequate
> > memory on both nodes.
> >
> > this we have observed same on both arm64/thunderx numa and on x86 numa system!
> >
> > using latest ltp from master branch version 20160920-197-gbc4d3db
> > and linux kernel version 4.9
> >
> > is this known bug already?
>
> Probably not.
>
> Is it possible that cpuset limits the process to one node, and numa
> mempolicy to the other node?

No this shouldn't happen AFAICS. It is more likely that there is an
unrelated memory pressure happenning at the same time.
--
Michal Hocko
SUSE Labs

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