From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753561AbZFSHbQ (ORCPT ); Fri, 19 Jun 2009 03:31:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751095AbZFSHa7 (ORCPT ); Fri, 19 Jun 2009 03:30:59 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:33371 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753027AbZFSHa7 (ORCPT ); Fri, 19 Jun 2009 03:30:59 -0400 Date: Fri, 19 Jun 2009 09:30:53 +0200 From: Ingo Molnar To: David Miller , Sam Ravnborg , Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: Re: backtrace symbols are bolixed... Message-ID: <20090619073053.GA5445@elte.hu> References: <20090619.002101.45610359.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090619.002101.45610359.davem@davemloft.net> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * David Miller wrote: > Sometime in the last day or so backtrace symbol printouts > have become useless: > > [ 0.000000] WARNING: at mm/bootmem.c:535 __stop_notes+0xbb10/0x1d660() > [ 0.000000] Modules linked in: > [ 0.000000] Call Trace: > [ 0.000000] [00000000008611b4] __stop_notes+0xbb10/0x1d660 > [ 0.000000] [000000000086195c] __stop_notes+0xc2b8/0x1d660 > [ 0.000000] [0000000000861a28] __stop_notes+0xc384/0x1d660 > [ 0.000000] [0000000000858678] __stop_notes+0x2fd4/0x1d660 > [ 0.000000] [000000000085684c] __stop_notes+0x11a8/0x1d660 > [ 0.000000] [00000000006e8bdc] _etext+0xfffffffffffe59f4/0xe18 > [ 0.000000] [0000000000000000] (null) > > I'll try to bisect but maybe someone can figure it out quickly > meanwhile. I saw this too. One change that went upstream when i started seeing these weird backtraces is: ad6ccfa: kernel/kallsyms.c: replace deprecated __initcall with device_initcall and fix Sam and Andrew Cc:-ed. Ingo