linux-kernel - Re: FYI: mmap

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Message-ID: <1278588200.1900.89.camel@laptop>
Date:	Thu, 08 Jul 2010 13:23:20 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	Michel Lespinasse <walken@...gle.com>,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Divyesh Shah <dpshah@...gle.com>, Ingo Molnar <mingo@...e.hu>
Subject: Re: FYI: mmap_sem OOM patch

On Thu, 2010-07-08 at 20:06 +0900, KOSAKI Motohiro wrote:
> > [ small note on that we really should kill __GFP_NOFAIL, its utter
> > deadlock potential ]
> 
> I disagree. __GFP_NOFAIL mean this allocation failure can makes really
> dangerous result. Instead, OOM-Killer should try to kill next process.
> I think. 

Say _what_?! you think NOFAIL is a sane thing? Pretty much everybody has
been agreeing for years that the thing should die.
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