linux-kernel - Re: mm, vmscan: commit makes PAE kernel crash nightly (bisected)

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Message-ID: <20170124125458.GH6867@dhcp22.suse.cz>
Date:   Tue, 24 Jan 2017 13:54:58 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     Trevor Cordes <trevor@...nopolis.ca>
Cc:     Mel Gorman <mgorman@...hsingularity.net>,
        linux-kernel@...r.kernel.org, Joonsoo Kim <iamjoonsoo.kim@....com>,
        Minchan Kim <minchan@...nel.org>,
        Rik van Riel <riel@...riel.com>,
        Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Subject: Re: mm, vmscan: commit makes PAE kernel crash nightly (bisected)

On Sun 22-01-17 18:45:59, Trevor Cordes wrote:
[...]
> Also, completely separate from your patch I ran mhocko's 4.9 tree with
> mem=2G to see if lower ram amount would help, but it didn't.  Even with
> 2G the system oom and hung same as usual.  So far the only thing that
> helps at all was the cgroup_disable=memory option, which makes the
> problem disappear completely for me.

OK, can we reduce the problem space slightly more and could you boot
with kmem accounting enabled? cgroup.memory=nokmem,nosocket
-- 
Michal Hocko
SUSE Labs