From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760079Ab2IFAlj (ORCPT ); Wed, 5 Sep 2012 20:41:39 -0400 Received: from mga01.intel.com ([192.55.52.88]:25336 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755052Ab2IFAlh (ORCPT ); Wed, 5 Sep 2012 20:41:37 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,377,1344236400"; d="scan'208";a="218642108" Date: Thu, 6 Sep 2012 08:41:34 +0800 From: Fengguang Wu To: Yinghai Lu Cc: Jiang Liu , Bjorn Helgaas , LKML , linux-pci@vger.kernel.org Subject: Re: PCI/e1000 BUG: unable to handle kernel paging request at 0ffff163 Message-ID: <20120906004134.GA12893@localhost> References: <20120905065118.GA9603@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 05, 2012 at 11:41:04AM -0700, Yinghai Lu wrote: > On Tue, Sep 4, 2012 at 11:51 PM, Fengguang Wu wrote: > > Yinghai, > > > > There are many kernel paging errors showing up in tree: > > > > git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git for-pci-for-each-res-addon-v2 > > > > The below summary shows that > > > > 1) it's a reliably reproducible bug > > 2) all paging fault happens at address 0ffff163 and in some e1000 functions > > > > I'll try to bisect if the root cause is not obvious to you. (Cannot > > do so for now because there are 3 bisections on the way and I cannot > > afford more..) > > thanks, will check that... > > the 32bit kernel as kvm gust, and host is doing pci passthrough to > export the VF to the KVM guest? No I didn't do anything special for PCI passthrough. I just used KVM's emulated e1000 device. btw, I'll be able to start bisection after several hours. Thanks, Fengguang