linux-kernel - Re: 2.6.26: x86/kernel/pci_dma.c: gfp |= __GFP

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Date:	Sun, 25 May 2008 20:55:32 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Miquel van Smoorenburg <miquels@...tron.nl>,
	Andi Kleen <andi@...stfloor.org>,
	Glauber Costa <gcosta@...hat.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	andi-suse@...stfloor.org
Subject: Re: 2.6.26: x86/kernel/pci_dma.c: gfp |= __GFP_NORETRY ?

On Sun, 25 May 2008 18:35:39 +0200
Andi Kleen <andi@...stfloor.org> wrote:

> > So how about linux-2.6.26-gfp-no-oom.patch (see previous mail) for
> > 2.6.26 
> 
> Changing the gfp once globally like you did is not right, because
> the different fallback cases have to be handled differently
> (see the different cases I discussed in my earlier mail)
> 
> Especially the 16MB zone allocation should never trigger the OOM killer.

That depends how much memory you have.

Alan
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