From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26697 invoked by alias); 10 Jun 2005 18:11:46 -0000 Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sources.redhat.com Received: (qmail 26684 invoked by uid 22791); 10 Jun 2005 18:11:42 -0000 Received: from nevyn.them.org (HELO nevyn.them.org) (66.93.172.17) by sourceware.org (qpsmtpd/0.30-dev) with ESMTP; Fri, 10 Jun 2005 18:11:42 +0000 Received: from drow by nevyn.them.org with local (Exim 4.50) id 1Dgnym-0001cr-PW; Fri, 10 Jun 2005 14:11:40 -0400 Date: Fri, 10 Jun 2005 18:11:00 -0000 From: Daniel Jacobowitz To: Rich Coe Cc: gdb@sources.redhat.com Subject: Re: no stack trace with 2.6.11 and gdb 6.3 Message-ID: <20050610181140.GA6207@nevyn.them.org> Mail-Followup-To: Rich Coe , gdb@sources.redhat.com References: <20050610125855.62ce7313@godzilla> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050610125855.62ce7313@godzilla> User-Agent: Mutt/1.5.8i X-SW-Source: 2005-06/txt/msg00093.txt.bz2 On Fri, Jun 10, 2005 at 12:58:55PM -0500, Rich Coe wrote: > I have been investigating a problem we found here, which initially > exactly matched the problem reported here: > > https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=146087 > > 1. Start a 32-bit app on a x86_64 system > 2. attach with gdb > 3. backtrace starting in a system call doesn't work > > Our versions: > kernel: 2.6.11.11 > gdb: 6.3.0.0-1.21 This is presumably a bug in that Red Hat-supplied version of GDB. We can't help you with it on this list; if you can reproduce it with the version of GDB in CVS, please let us know, otherwise you should discuss it with Red Hat. Code was added sometime last year to handle loading the vDSO on attach. -- Daniel Jacobowitz CodeSourcery, LLC