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Date: Fri, 23 Mar 2001 16:46:27 -0800
From: Tim Wright <timw@splhi.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Andries.Brouwer@cwi.nl, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Prevent OOM from killing init
Message-ID: <20010323164627.C2534@kochanski.internal.splhi.com>
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In-Reply-To: <E14gWSN-0005CQ-00@the-village.bc.nu>; from alan@lxorguk.ukuu.org.uk on Fri, Mar 23, 2001 at 06:38:37PM +0000
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On Fri, Mar 23, 2001 at 06:38:37PM +0000, Alan Cox wrote:
> > infinite storage. After all, earlier Unix flavours did not need
> > an OOM killer either, and my editor was not killed under Unix V6
> > on 64k when I started some other process.
> 
> You were lucky. Its quite possible for V6 to kill processes when you run out
> of swap
> 

It was actually worse than that. Grab your copy of "Lions", and check lines
4375-4377 in function xswap(). A failure to allocate space in the swapmap
caused a panic. Same problem in xalloc().

Tim

-- 
Tim Wright - timw@splhi.com or timw@aracnet.com or twright@us.ibm.com
IBM Linux Technology Center, Beaverton, Oregon
Interested in Linux scalability ? Look at http://lse.sourceforge.net/
"Nobody ever said I was charming, they said "Rimmer, you're a git!"" RD VI
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