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Date: Tue, 11 Mar 2014 17:41:58 +0400
From: Cyrill Gorcunov <gorcunov@gmail.com>
Subject: Re: bad rss-counter message in 3.14rc5
Message-ID: <20140311134158.GD32390@moon>
References: <20140305175725.GB16335@redhat.com>
 <20140307002210.GA26603@redhat.com>
 <20140311024906.GA9191@redhat.com>
 <20140310201340.81994295.akpm@linux-foundation.org>
 <20140310214612.3b4de36a.akpm@linux-foundation.org>
 <20140311045109.GB12551@redhat.com>
 <20140310220158.7e8b7f2a.akpm@linux-foundation.org>
 <20140311053017.GB14329@redhat.com>
 <20140311132024.GC32390@moon>
 <531F0E39.9020100@oracle.com>
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To: Sasha Levin <sasha.levin@oracle.com>
Cc: Dave Jones <davej@redhat.com>, Andrew Morton <akpm@linux-foundation.org>, Linux Kernel <linux-kernel@vger.kernel.org>, linux-mm@kvack.org, Linus Torvalds <torvalds@linux-foundation.org>, Joonsoo Kim <iamjoonsoo.kim@lge.com>, Bob Liu <bob.liu@oracle.com>, Konstantin Khlebnikov <koct9i@gmail.com>

On Tue, Mar 11, 2014 at 09:23:05AM -0400, Sasha Levin wrote:
> >>
> >>Ok, with move_pages excluded it still oopses.
> >
> >Dave, is it possible to somehow figure out was someone reading pagemap file
> >at moment of the bug triggering?
> 
> We can sprinkle printk()s wherever might be useful, might not be 100% accurate but
> should be close enough to confirm/deny the theory.

After reading some more, I suppose the idea I had is wrong, investigating.
Will ping if I find something.

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