From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27003 invoked by alias); 12 Mar 2007 14:52:45 -0000 Received: (qmail 26980 invoked by uid 22791); 12 Mar 2007 14:52:44 -0000 X-Spam-Check-By: sourceware.org Received: from nevyn.them.org (HELO nevyn.them.org) (66.93.172.17) by sourceware.org (qpsmtpd/0.31.1) with ESMTP; Mon, 12 Mar 2007 14:52:35 +0000 Received: from dsl093-172-095.pit1.dsl.speakeasy.net ([66.93.172.95] helo=caradoc.them.org) by nevyn.them.org with esmtp (Exim 4.63) (envelope-from ) id 1HQlt1-0000yS-E5; Mon, 12 Mar 2007 10:52:31 -0400 Received: from drow by caradoc.them.org with local (Exim 4.63) (envelope-from ) id 1HQlt0-0000KH-Ny; Mon, 12 Mar 2007 10:52:30 -0400 Date: Mon, 12 Mar 2007 14:52:00 -0000 From: Daniel Jacobowitz To: Rich Rattanni Cc: gdb@sourceware.org Subject: Re: Cause of the ?? in backtrace Message-ID: <20070312145230.GA1239@caradoc.them.org> Mail-Followup-To: Rich Rattanni , gdb@sourceware.org References: <3187bd480703120747h332fbf12gab39d77719c910f9@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3187bd480703120747h332fbf12gab39d77719c910f9@mail.gmail.com> User-Agent: Mutt/1.5.13 (2006-08-11) 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: 2007-03/txt/msg00167.txt.bz2 On Mon, Mar 12, 2007 at 10:47:54AM -0400, Rich Rattanni wrote: > Why would one get the following when trying to do a backtrace in GDB... Because GDB could not figure out what came next. The library might be too optimized and stripped, or the stack might be corrupt, or GDB might have a bug, or some other operating system specific problem. -- Daniel Jacobowitz CodeSourcery