linux-kernel - Re: [PATCH] mm/nommu.c:Dynamic alloc/free percpu area for nommu

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Message-ID: <4BBE67B9.9050700@kernel.org>
Date:	Fri, 09 Apr 2010 08:33:13 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Sonic Zhang <sonic.adi@...il.com>
CC:	graff yang <graff.yang@...il.com>, dhowells@...hat.com,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	uclinux-dist-devel@...ckfin.uclinux.org
Subject: Re: [PATCH] mm/nommu.c:Dynamic alloc/free percpu area for nommu

Hello,

On 04/08/2010 06:40 PM, Sonic Zhang wrote:
> There is memory leak with you patch. Free memory continuously
> decreases when running test_pcpu. After about 30 minutes, kernel hangs
> in out_of_memory().
> 
> root/> while [ 1 ]; do modprobe test_pcpu; rmmod test_pcpu; cat
> proc/meminfo; done

Yeap, chunk->map wasn't freed in the original version.  In the updated
split version I posted yesterday, it's fixed.  Can you please test
that code?

Thanks.

-- 
tejun
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