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Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel

From Michal Hocko <mhocko@kernel.org>
Newsgroups linux.kernel
Subject Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel
Date 2017-01-11 17:40 +0100
Message-ID <sYu6l-Lo-23@gated-at.bofh.it> (permalink)
References <sYoNk-5Rd-25@gated-at.bofh.it> <sYoX0-69r-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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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Thread

getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Ganapatrao Kulkarni <gpkulkarni@gmail.com> - 2017-01-11 12:00 +0100
  Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Vlastimil Babka <vbabka@suse.cz> - 2017-01-11 12:10 +0100
    Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Vlastimil Babka <vbabka@suse.cz> - 2017-01-11 13:40 +0100
      Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Michal Hocko <mhocko@kernel.org> - 2017-01-11 17:50 +0100
        Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Vlastimil Babka <vbabka@suse.cz> - 2017-01-12 12:20 +0100
          Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Ganapatrao Kulkarni <gpkulkarni@gmail.com> - 2017-01-13 05:40 +0100
            Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Vlastimil Babka <vbabka@suse.cz> - 2017-01-13 10:10 +0100
              Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Michal Hocko <mhocko@kernel.org> - 2017-01-13 17:00 +0100
              Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Ganapatrao Kulkarni <gpkulkarni@gmail.com> - 2017-01-16 11:50 +0100
                Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Vlastimil Babka <vbabka@suse.cz> - 2017-01-16 14:30 +0100
    Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Michal Hocko <mhocko@kernel.org> - 2017-01-11 17:40 +0100
  Re: getting oom/stalls for ltp test cpuset01 with latest/4.9 kernel Michal Hocko <mhocko@kernel.org> - 2017-01-11 17:40 +0100

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