linux-kernel - Re: [PATCH 05/11] oom: /proc/<pid>/oom

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Date:	Wed, 30 Jun 2010 23:03:53 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH 05/11] oom: /proc/<pid>/oom_score treat kernel thread
 honestly

On Wed, Jun 30, 2010 at 06:30:19PM +0900, KOSAKI Motohiro wrote:
> If kernel thread are using use_mm(), badness() return positive value.
> This is not big issue because caller care it correctly. but there is
> one exception, /proc/<pid>/oom_score call badness() directly and
> don't care the task is regular process.
> 
> another example, /proc/1/oom_score return !0 value. but it's unkillable.
> This incorrectness makes confusing to admin a bit.

Hmm. If it is a really problem, Could we solve it in proc_oom_score itself?

-- 
Kind regards,
Minchan Kim
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