From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757342AbYISKeQ (ORCPT ); Fri, 19 Sep 2008 06:34:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751306AbYISKeB (ORCPT ); Fri, 19 Sep 2008 06:34:01 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:43290 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751263AbYISKeA (ORCPT ); Fri, 19 Sep 2008 06:34:00 -0400 Date: Fri, 19 Sep 2008 11:33:56 +0100 From: Alan Cox To: "Bryan Donlan" Cc: lkml Subject: Re: Kernel OOPS and panic on boot in advantech watchdog init Message-ID: <20080919113356.111ce79f@lxorguk.ukuu.org.uk> In-Reply-To: <3e8340490809181902q31e8227fq72a7bea688b594c1@mail.gmail.com> References: <3e8340490809181902q31e8227fq72a7bea688b594c1@mail.gmail.com> X-Mailer: Claws Mail 3.5.0 (GTK+ 2.12.11; x86_64-redhat-linux-gnu) Organization: Red Hat UK Cyf., Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, Y Deyrnas Gyfunol. Cofrestrwyd yng Nghymru a Lloegr o'r rhif cofrestru 3798903 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 18 Sep 2008 22:02:16 -0400 "Bryan Donlan" wrote: > When testing a non-modular kernel on i386 with many of the default > drivers left on under Xen, I got the following oops and panic on boot: Looks like yet another Xen bug > [ 30.328280] BUG: unable to handle kernel paging request at d6023220 > [ 30.332244] IP: [] xen_set_pte+0x3/0x10 sc520 tries to make an ioremap to read 0xfffefcb0 > [ 30.332244] [] ioremap_page_range+0x1e2/0x280 > [ 30.332244] [] __ioremap_caller+0x1e1/0x340 The Xen glue should have either permitted the mapping or failed the ioremap attempt with NULL. Alan