linux-kernel - Re: OOM-killer and strange RSS value in 3.9-rc7

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Date:	Tue, 16 Apr 2013 13:16:42 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: OOM-killer and strange RSS value in 3.9-rc7

On Tue, 16 Apr 2013, Han Pingtian wrote:

> Hi list,
> 
> On a power7 system, we have installed 3.9-rc7 and crash 6.1.6. If I run
> something like "make -j 64" to compile linux kernel from source, sooner
> or latter, oom-killer will be triggered. Before that, when I trying to
> analyse the live system with crash, some processes' %MEM and RSS looks
> too big:
> 

Do you have the oom killer log from /var/log/messages with 
/proc/sys/vm/oom_dump_tasks enabled?  Have you tried to reproduce this 
issue with CONFIG_DEBUG_VM and CONFIG_DEBUG_PAGEALLOC enabled (you may 
even want to consider CONFIG_KMEMLEAK)?
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