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Message-ID: <20170309083954.5q5eqhu2igxt3pow@charon>
Date:   Thu, 9 Mar 2017 08:39:54 +0000
From:   Luis Henriques <henrix@...andro.org>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     Tejun Heo <tj@...nel.org>, Zefan Li <lizefan@...wei.com>,
        Johannes Weiner <jweiner@...com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: NULL pointer dereference in cgroup

On Wed, Mar 08, 2017 at 05:30:29PM -0600, Eric W. Biederman wrote:
> Luis Henriques <henrix@...andro.org> writes:
> 
> > Hi,
> >
> > I've seen this only once, and can't reproduce it.  But here it is anyway:
> >
> > https://postimg.org/image/pn94k1yov
> >
> > (Not sure png files are accepted on LKML.)
> >
> > This occurred in a VM while booting 4.11.0-rc1
> 
> Any idea what was happening when you triggered this?  A little context
> usually helps quite a bit when tracking things like this down.

Sorry, but I don't have more details.  As I said, I just booted a VM with
this kernel and when I looked again I saw this.  I assumed this happen
during boot.  I had used this kernel in this VM before without problems,
and I still use it -- only saw this once.

I'll keep an eye on it and see if I can gather more info if it happens
again.

Cheers,
--
Luís

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