From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kok, Auke" Subject: Re: [1/5] 2.6.21-rc5: known regressions Date: Wed, 28 Mar 2007 11:54:32 -0700 Message-ID: <460AB9E8.8070803@intel.com> References: <20070327015929.GY16477@stusta.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Linus Torvalds , Andrew Morton , Linux Kernel Mailing List , Jesse Brandeburg , e1000-devel@lists.sourceforge.net, jgarzik@pobox.com, netdev@vger.kernel.org To: Adrian Bunk , Ingo Molnar Return-path: Received: from mga01.intel.com ([192.55.52.88]:33016 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965658AbXC1Sye (ORCPT ); Wed, 28 Mar 2007 14:54:34 -0400 In-Reply-To: <20070327015929.GY16477@stusta.de> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Adrian Bunk wrote: > Subject : e1000 resume weirdness > References : http://lkml.org/lkml/2007/3/26/91 > Submitter : Ingo Molnar > Handled-By : Jesse Brandeburg > Auke Kok > Status : problem is being debugged The issue comes from a corner case and the underlying problem is that e1000 isn't stopping tx properly. We have a fix for this pending in our tree that I'll push upstream for 2.6.22 to Jeff, but I don't think this should be a blocker and it's probably is not a regression at all, the gap has always been present. on a side note, this is probably fixed easily by turning the adapters detect_tx_hung flag off in e1000_down, so if someone spots this reoccurring somewhat regularly, please contact me so we can debug it. I myself have a system suspend/resuming in circles for an hour now with traffic flying across without a single hit on it.... Adrian, you probably want to drop this issue from your list. Cheers, Auke