linux-kernel - Re: Memory overcommit

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Message-ID: <4AE792B8.5020806@gmail.com>
Date:	Wed, 28 Oct 2009 01:39:20 +0100
From:	Vedran Furač <vedran.furac@...il.com>
To:	David Rientjes <rientjes@...gle.com>
CC:	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	minchan.kim@...il.com, Andrew Morton <akpm@...ux-foundation.org>,
	Andrea Arcangeli <aarcange@...hat.com>
Subject: Re: Memory overcommit

David Rientjes wrote:

> This is wrong; it doesn't "emulate oom" since oom_kill_process() always 
> kills a child of the selected process instead if they do not share the 
> same memory.  The chosen task in that case is untouched.

OK, I stand corrected then. Thanks! But, while testing this I lost X
once again and "test" survived for some time (check the timestamps):

http://pastebin.com/d5c9d026e

- It started by killing gkrellm(!!!)
- Then I lost X (kdeinit4 I guess)
- Then 103 seconds after the killing started, it killed "test" - the
real culprit.

I mean... how?!


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