linux-kernel - Re: [PATCH 05/12] Memory compaction core

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Message-ID: <alpine.DEB.2.00.1002181335270.7351@router.home>
Date:	Thu, 18 Feb 2010 13:37:35 -0600 (CST)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Mel Gorman <mel@....ul.ie>
cc:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Adam Litke <agl@...ibm.com>, Avi Kivity <avi@...hat.com>,
	David Rientjes <rientjes@...gle.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH 05/12] Memory compaction core

On Tue, 16 Feb 2010, Mel Gorman wrote:

> > Oh there are numerous ZONE_DMA pressure issues if you have ancient /
> > screwed up hardware that can only operate on DMA or DMA32 memory.
> >
>
> I've never ran into the issue. I was under the impression that the only
> device that might care these days are floopy disks.

Kame-san had an issue a year or so ago.


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