linux-kernel - Re: [PATCH for review] [11/48] x86_64: During VM oom condition, kill all threads in process group

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Message-ID: <Pine.LNX.4.64.0707191614180.7377@anakin>
Date:	Thu, 19 Jul 2007 16:14:50 +0200 (CEST)
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Christoph Hellwig <hch@...radead.org>
Cc:	Andi Kleen <ak@...e.de>, will_schmidt@...t.ibm.com,
	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH for review] [11/48] x86_64: During VM oom condition, kill
 all threads in process group

On Thu, 19 Jul 2007, Christoph Hellwig wrote:
> On Thu, Jul 19, 2007 at 03:48:40PM +0200, Andi Kleen wrote:
> > From: Will Schmidt <will_schmidt@...t.ibm.com>
> > 
> > During a VM oom condition, kill all threads in the process group.
> > 
> > We have had complaints where a threaded application is left in a bad state
> > after one of it's threads is killed when we hit a VM: out_of_memory condition.
> > 
> > Killing just one of the process threads can leave the application in a bad
> > state, whereas killing the entire process group would allow for the
> > application to restart, or otherwise handled, and makes it very obvious that
> > something has gone wrong.
> > 
> > This change allows the entire process group to be taken down, rather than just
> > the one thread.
> 
> Shouldn't we have one patc hthat does this for every architecture instead
> of going through arch maintainers and probably losing half of them?

Yes, please ;-)

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

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