From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [net-2.6 PATCH 1/2] e1000e: disable ASPM L1 on 82573 Date: Thu, 19 Aug 2010 15:48:58 -0700 (PDT) Message-ID: <20100819.154858.226796327.davem@davemloft.net> References: <20100819224307.10079.89643.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, gospo@redhat.com, bphilips@novell.com, bruce.w.allan@intel.com, stable@kernel.org To: jeffrey.t.kirsher@intel.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:42336 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752982Ab0HSWsl (ORCPT ); Thu, 19 Aug 2010 18:48:41 -0400 In-Reply-To: <20100819224307.10079.89643.stgit@localhost.localdomain> Sender: netdev-owner@vger.kernel.org List-ID: From: Jeff Kirsher Date: Thu, 19 Aug 2010 15:43:46 -0700 > From: Bruce Allan > > 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 > Signed-off-by: Bruce Allan > Cc: stable@kernel.org > Signed-off-by: Jeff Kirsher Applied.