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Date:	Thu, 20 Jul 2006 09:42:48 -0700
From:	Auke Kok <auke-jan.h.kok@...el.com>
To:	Mark McLoughlin <markmc@...hat.com>
CC:	jesse.brandeburg@...el.com, linux-kernel@...r.kernel.org,
	xen-devel@...ts.xensource.com,
	Herbert Xu <herbert@...dor.apana.org.au>
Subject: Re: e1000: Problem with "disable CRC stripping workaround" patch

Mark McLoughlin wrote:
> Hi Jesse,
> 	I just came across this:
> 
>   http://www.mail-archive.com/netdev@vger.kernel.org/msg14547.html
> 
> 	I'm seeing a problem with this currently under Xen's bridging
> configuration.


 > 	One option is to fix this specific problem is to subtract the CRC
 > length from skb->len in e1000, another is to raise the MTU on the
 > receive side of Xen's loopback interface. I've attached a patch for the
 > latter, but I've no real opinion on which is more correct.

We were sort of expecting this and sent the following patch upstream already - 
it's already queued for 2.6.18-rc3:

http://kernel.org/git/?p=linux/kernel/git/jgarzik/netdev-2.6.git;a=commitdiff_plain;h=f235a2abb27b9396d2108dd2987fb8262cb508a3;hp=d3d9e484b2ca502c87156b69fa6b8f8fd5fa18a0

Please give it a try and let us know if it fixes the issue for you, it should 
be much better than patching xen's code.

Cheers,

Auke
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