From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10893 invoked by alias); 15 Sep 2008 18:36:14 -0000 Received: (qmail 10882 invoked by uid 22791); 15 Sep 2008 18:36:13 -0000 X-Spam-Check-By: sourceware.org Received: from NaN.false.org (HELO nan.false.org) (208.75.86.248) by sourceware.org (qpsmtpd/0.31) with ESMTP; Mon, 15 Sep 2008 18:35:34 +0000 Received: from nan.false.org (localhost [127.0.0.1]) by nan.false.org (Postfix) with ESMTP id 8CBA510CED; Mon, 15 Sep 2008 18:35:32 +0000 (GMT) Received: from caradoc.them.org (22.svnf5.xdsl.nauticom.net [209.195.183.55]) by nan.false.org (Postfix) with ESMTP id 74DF610CEB; Mon, 15 Sep 2008 18:35:30 +0000 (GMT) Received: from drow by caradoc.them.org with local (Exim 4.69) (envelope-from ) id 1KfIv3-0005Tz-MB; Mon, 15 Sep 2008 14:35:29 -0400 Date: Mon, 15 Sep 2008 18:36:00 -0000 From: Daniel Jacobowitz To: Jack Bates Cc: gdb@sourceware.org Subject: Re: module built with debugging symbols but backtrace: 0x00000050 in ?? () Message-ID: <20080915183529.GA21057@caradoc.them.org> Mail-Followup-To: Jack Bates , gdb@sourceware.org References: <1221503302.17538.14.camel@ket.lat> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1221503302.17538.14.camel@ket.lat> User-Agent: Mutt/1.5.17 (2008-05-11) X-IsSubscribed: yes Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2008-09/txt/msg00092.txt.bz2 On Mon, Sep 15, 2008 at 11:28:22AM -0700, Jack Bates wrote: > I am trying to debug an Apache module. I compiled it with "-g", however > the first line of my backtrace is: > > (gdb) bt > #0 0x00000050 in ?? () That's not a valid address for a function. Usually, this means you've called something that was not a valid function pointer. Go up to frame 1: > #1 0xb782f852 in call_get_cert_callback (session=0x81e5550, issuers_dn=0x0, > issuers_dn_length=0, pk_algos=0x0, pk_algos_length=0) at auth_cert.c:430 And see what it's trying to call. -- Daniel Jacobowitz CodeSourcery