From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Scott Parish" <srparish@us.ibm.com>
Subject: Re: dma_alloc_coherent issue with tg3 in x86_64 build
Date: Thu, 28 Jul 2005 20:03:08 +0000
Message-ID: <20050728200308.GE4224@us.ibm.com>
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To: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>
Cc: Chris Wright <chrisw@osdl.org>, xen-devel@lists.xensource.com
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On Thu, Jul 28, 2005 at 09:59:22PM +0100, Ian Pratt wrote:

> Do you know how large a contiguous chunk the tg3 needs? 

A quick glance at the code, it looks like it requests at least 4 pages,
and possibly multiple times.
 
> I guess we could hold onto a few large chunks before making the dom0
> memory allocation.

I'm surprised that the mfns are already fragmented that early in boot.
Or maybe this case is just an example of bad luck?

sRp

-- 
Scott Parish
Signed-off-by: srparish@us.ibm.com