netdev - Re: [net-2.6 PATCH 1/2] e1000e: disable ASPM L1 on 82573

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Message-Id: <20100819.154858.226796327.davem@davemloft.net>
Date:	Thu, 19 Aug 2010 15:48:58 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jeffrey.t.kirsher@...el.com
Cc:	netdev@...r.kernel.org, gospo@...hat.com, bphilips@...ell.com,
	bruce.w.allan@...el.com, stable@...nel.org
Subject: Re: [net-2.6 PATCH 1/2] e1000e: disable ASPM L1 on 82573

From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Date: Thu, 19 Aug 2010 15:43:46 -0700

> From: Bruce Allan <bruce.w.allan@...el.com>
> 
> On the e1000-devel mailing list, Nils Faerber reported latency issues with
> the 82573 LOM on a ThinkPad X60.  It was found to be caused by ASPM L1;
> disabling it resolves the latency.  The issue is present in kernels back
> to 2.6.34 and possibly 2.6.33.
> 
> 
> Reported-by: Nils Faerber <nils.faerber@...nelconcepts.de>
> Signed-off-by: Bruce Allan <bruce.w.allan@...el.com>
> Cc: stable@...nel.org
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>

Applied.
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