linux-kernel - Re: BUG: Bad page state in process - page dumped because: page still charged to cgroup

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Message-ID: <20200702061931.GB18446@dhcp22.suse.cz>
Date:   Thu, 2 Jul 2020 08:19:31 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Roman Gushchin <guro@...com>
Cc:     Naresh Kamboju <naresh.kamboju@...aro.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-mm <linux-mm@...ck.org>,
        open list <linux-kernel@...r.kernel.org>,
        lkft-triage@...ts.linaro.org, Chris Down <chris@...isdown.name>
Subject: Re: BUG: Bad page state in process - page dumped because: page still
 charged to cgroup

On Wed 01-07-20 11:45:52, Roman Gushchin wrote:
[...]
> So it makes me think that somehow memcg_kmem_enabled() became false
> after being true, which can cause refcounting problems as well.

Isn't this a similar class of problem as
http://lkml.kernel.org/r/1593641660-13254-2-git-send-email-bhsharma@redhat.com?
-- 
Michal Hocko
SUSE Labs