Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755216Ab0D1UWV (ORCPT ); Wed, 28 Apr 2010 16:22:21 -0400 Received: from www.tglx.de ([62.245.132.106]:58107 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751371Ab0D1UWU (ORCPT ); Wed, 28 Apr 2010 16:22:20 -0400 Date: Wed, 28 Apr 2010 22:22:11 +0200 (CEST) From: Thomas Gleixner To: Xianghua Xiao cc: john stultz , LKML Subject: Re: 2.6.33.3-rt16 Oops caused by umount In-Reply-To: Message-ID: References: <1272399798.2255.2.camel@localhost> <1272400246.2255.5.camel@localhost> <1272434481.1974.101.camel@work-vm> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323328-1070554541-1272486132=:2951" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1656 Lines: 57 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323328-1070554541-1272486132=:2951 Content-Type: TEXT/PLAIN; charset=UTF-8 Content-Transfer-Encoding: 8BIT On Wed, 28 Apr 2010, Xianghua Xiao wrote: > On Wed, Apr 28, 2010 at 2:38 PM, Thomas Gleixner wrote: > > On Wed, 28 Apr 2010, Xianghua Xiao wrote: > >> Thomas, > >> I patched it and re-run it however did not find any condition from > >> your patch had a hit. > >> In your patch I changed : > >> > >> if (!file->f_path) { > >> to > >> if(!(&(file->f_path))){ > >> Otherwise it won't compile as f_path is a not a pointer. > > > > True :) > > > >> # reboot > >> # Oops: Kernel access of bad area, sig: 11 [#1] > > > > Ok. Can you please enable CONFIG_DEBUG_LIST ? > > > > Thanks, > > > >        tglx > > > I turned on that, could not find any difference from the oops log. > If I try to remount it rw then ro, the remount ro will cause similar oops > Thanks, > Xianghua > > # reboot > # Oops: Kernel access of bad area, sig: 11 [#1] > PREEMPT 834x SYS > Modules linked in: > NIP: c009ca1c LR: c009c9cc CTR: 00000000 Can you please decode the code lines with # addr2line -e vmlinux 0xc009ca1c 0xc009c9cc You need to enable CONFIG_DEBUG_INFO to get real line numbers. Thanks, tglx --8323328-1070554541-1272486132=:2951-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/