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Date: Wed, 9 Oct 2013 19:11:45 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>,
        Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Johannes Weiner <hannes@cmpxchg.org>, Linux-MM <linux-mm@kvack.org>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/63] Basic scheduler support for automatic NUMA
 balancing V9
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On Wed, Oct 09, 2013 at 07:09:34PM +0200, Ingo Molnar wrote:
> 
> I started bisecting the crash, and the good news is that it's bisectable 
> and it's not the NUMA bits that are causing the crash.
> 
> (the bad news is that I now face a boring, possibly very long bisection, 
> but hey ;-)

Its the RMW bits..