From: Thomas Gleixner <tglx@linutronix.de>
To: Andi Kleen <andi@firstfloor.org>
Cc: Glauber Costa <gcosta@redhat.com>,
Miquel van Smoorenburg <miquels@cistron.nl>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
andi-suse@firstfloor.org
Subject: Re: 2.6.26: x86/kernel/pci_dma.c: gfp |= __GFP_NORETRY ?
Date: Thu, 22 May 2008 21:58:11 +0200 (CEST) [thread overview]
Message-ID: <alpine.LFD.1.10.0805222157300.3295@apollo.tec.linutronix.de> (raw)
In-Reply-To: <20080522084736.GC31727@one.firstfloor.org>
On Thu, 22 May 2008, Andi Kleen wrote:
> On Wed, May 21, 2008 at 09:49:27AM -0300, Glauber Costa wrote:
> > probably andi has a better idea on why it was added, since it used to
> > live in his tree?
>
> d_a_c() tries a couple of zones, and running the oom killer for each
> is inconvenient. Especially for the 16MB DMA zone which is unlikely
> to be cleared by the OOM killer anyways because normal user applications
> don't put pages in there. There was a real report with some problems
> in this area.
Can you give some pointers please ?
Thanks,
tglx
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next prev parent reply other threads:[~2008-05-22 19:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-21 11:30 2.6.26: x86/kernel/pci_dma.c: gfp |= __GFP_NORETRY ? Miquel van Smoorenburg
2008-05-21 12:49 ` Glauber Costa
2008-05-22 8:47 ` Andi Kleen
2008-05-22 19:25 ` Miquel van Smoorenburg
2008-05-24 19:38 ` Miquel van Smoorenburg
2008-05-25 16:35 ` Andi Kleen
2008-05-25 19:55 ` Alan Cox
2008-05-25 21:23 ` Andi Kleen
2008-05-25 22:02 ` Alan Cox
2008-05-22 19:58 ` Thomas Gleixner [this message]
2008-05-22 22:59 ` Andi Kleen
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