Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758129AbYCGIfH (ORCPT ); Fri, 7 Mar 2008 03:35:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753162AbYCGIe4 (ORCPT ); Fri, 7 Mar 2008 03:34:56 -0500 Received: from www.tglx.de ([62.245.132.106]:39166 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751578AbYCGIez (ORCPT ); Fri, 7 Mar 2008 03:34:55 -0500 Date: Fri, 7 Mar 2008 09:34:01 +0100 (CET) From: Thomas Gleixner To: Valdis.Kletnieks@vt.edu cc: Andrew Morton , linux-kernel@vger.kernel.org, Ingo Molnar Subject: Re: 2.6.25-rc3-mm1 - BUG at system shutdown time In-Reply-To: <3450.1204878180@turing-police.cc.vt.edu> Message-ID: References: <20080304011928.e8c82c0c.akpm@linux-foundation.org> <10815.1204862325@turing-police.cc.vt.edu> <20080306221602.790cd26e.akpm@linux-foundation.org> <4954.1204876349@turing-police.cc.vt.edu> <3450.1204878180@turing-police.cc.vt.edu> User-Agent: Alpine 1.00 (LFD 882 2007-12-20) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1369 Lines: 38 On Fri, 7 Mar 2008, Valdis.Kletnieks@vt.edu wrote: > On Fri, 07 Mar 2008 09:06:59 +0100, Thomas Gleixner said: > > On Fri, 7 Mar 2008, Valdis.Kletnieks@vt.edu wrote: > > > On Thu, 06 Mar 2008 22:16:02 PST, Andrew Morton said: > > > > > [ 74.254402] CPU 1 is now offline > > > > > [ 74.255395] SMP alternatives: switching to UP code > > > > > [ 74.256373] BUG: unable to handle kernel paging request at ffffffff8020a023 > > > > Can you decode ffffffff8020a023 via addr2line please ? > > It's been a long day, and I couldn't get addr2line to work, it kept saying '??:0'. > > However, this is in my System.map: > > ffffffff8020a000 t poll_idle > ffffffff8020a009 t do_nothing > ffffffff8020a00f T set_personality_64bit > ffffffff8020a041 T release_thread > ffffffff8020a07d T arch_randomize_brk > > so set_personality_64bit+0x14 or so? Yeah. Sorry for making you do useless work. The meat is here: > > [ 74.256373] PGD 203067 PUD 207063 PMD 7e4cc163 PTE 20a161 ----------------------------------------------------------^^^^^^ The PTE has the RW bit cleared, so the fault is not a big surprise. Thanks, tglx -- 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/