linux-kernel - Re: sched: spinlock recursion in migrate_swap

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Message-ID: <537B52BD.1080807@oracle.com>
Date:	Tue, 20 May 2014 09:03:57 -0400
From:	Sasha Levin <sasha.levin@...cle.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Ingo Molnar <mingo@...nel.org>, Mel Gorman <mgorman@...e.de>,
	Rik van Riel <riel@...hat.com>,
	Dave Jones <davej@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: sched: spinlock recursion in migrate_swap_stop

On 05/20/2014 07:04 AM, Peter Zijlstra wrote:
> On Mon, May 19, 2014 at 10:05:31PM -0400, Sasha Levin wrote:
>> ping? It seems to be easy enough to reproduce on -next, I'd be happy to try
>> debug patches/fixes.
> 
> Does this fuzzing you do also include hotplug? If so, does disabling
> that make this problem go away?
> 

There were no hotplug operations going on when this happens, so it seems
unrelated.


Thanks,
Sasha
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