From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11082 invoked by alias); 28 Mar 2007 11:26:48 -0000 Received: (qmail 11074 invoked by uid 22791); 28 Mar 2007 11:26:47 -0000 X-Spam-Check-By: sourceware.org Received: from return.false.org (HELO return.false.org) (66.207.162.98) by sourceware.org (qpsmtpd/0.31) with ESMTP; Wed, 28 Mar 2007 12:26:45 +0100 Received: from return.false.org (localhost [127.0.0.1]) by return.false.org (Postfix) with ESMTP id D62414B267; Wed, 28 Mar 2007 06:26:42 -0500 (CDT) Received: from caradoc.them.org (dsl093-172-095.pit1.dsl.speakeasy.net [66.93.172.95]) by return.false.org (Postfix) with ESMTP id A0DCF4B262; Wed, 28 Mar 2007 06:26:42 -0500 (CDT) Received: from drow by caradoc.them.org with local (Exim 4.63) (envelope-from ) id 1HWWIc-0000hF-9p; Wed, 28 Mar 2007 07:26:42 -0400 Date: Wed, 28 Mar 2007 11:26:00 -0000 From: Daniel Jacobowitz To: Kalpana Ramamurthy Cc: gdb@sourceware.org Subject: Re: gdb 6.4 does not stop unwinding even after reaching the last frame. Message-ID: <20070328112642.GA2502@caradoc.them.org> Mail-Followup-To: Kalpana Ramamurthy , gdb@sourceware.org References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.14+cvs20070313 (2007-03-13) 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: 2007-03/txt/msg00329.txt.bz2 On Wed, Mar 28, 2007 at 09:23:53AM +0000, Kalpana Ramamurthy wrote: > Hello, > I am using gdb 6.4 for debugging the product that I work on. When I try to > print a bactrace, I get > an extra frame at the end which looks like this : > #6 0x00000000 in ?? () There are not a lot of ways to safely indicate the end of the stack. Due to some internal reorganization, GDB 6.x is usually better about unwinding through strange things on the stack - but as a consequence it sometimes unwinds through the last frame too. Please try a version from CVS and see if it's any better; it may or may not be. -- Daniel Jacobowitz CodeSourcery