From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 14824 invoked by alias); 14 Nov 2003 09:39:04 -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 14763 invoked from network); 14 Nov 2003 09:39:02 -0000 Received: from unknown (HELO sccrmhc12.comcast.net) (204.127.202.56) by sources.redhat.com with SMTP; 14 Nov 2003 09:39:02 -0000 Received: from home.ringle.org (pcp03186657pcs.proctr01.fl.comcast.net[68.56.245.147]) by comcast.net (sccrmhc12) with ESMTP id <2003111409390101200s4abce>; Fri, 14 Nov 2003 09:39:01 +0000 Received: by home.ringle.org (Postfix, from userid 501) id A3A22B8353; Fri, 14 Nov 2003 04:38:59 -0500 (EST) From: Jon Ringle To: gdb@sources.redhat.com Subject: Re: value_from_register: Value not stored anywhere! Date: Fri, 14 Nov 2003 09:39:00 -0000 User-Agent: KMail/1.5 References: <200311140027.33963.jon.ringle@comdial.com> <20031114060644.GA18765@nevyn.them.org> In-Reply-To: <20031114060644.GA18765@nevyn.them.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Message-Id: <200311140438.59470.jon.ringle@comdial.com> X-SW-Source: 2003-11/txt/msg00101.txt.bz2 On Friday 14 November 2003 01:06 am, Daniel Jacobowitz wrote: > On Fri, Nov 14, 2003 at 12:27:33AM -0500, Jon Ringle wrote: > > Hi, > > > > I got this internal error in an arm gdb I built from cvs a couple weeks > > ago. I opened up the core file and here is the backtrace. I'm not sure > > what the problem is. > > > > Jon > > Test case? Scenario is debugging a remote arm target with kgdb: GNU gdb 2003-10-27-cvs Copyright 2003 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain condition= s. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "--host=3Di686-pc-linux-gnu --target=3Darm-linux= "... (gdb) target extended-remote /dev/ttyUSB0 Remote debugging using /dev/ttyUSB0 breakpoint () at kgdb-stub.c:1146 1146 } warning: shared library handler failed to enable breakpoint (gdb) c Continuing. mm/slab.c: kmem_cache_init entry: start: 10227F40, end: 10FFBFFF Calibrating delay loop... 6.68 BogoMIPS Memory: 14156k/15M available (0k code, 32k reserved, 0k data, 0k init) <6>kmem_test() - start <3>kmem_free: Bad front redzone (objp=3D10ff9004, name=3Dtest-cachep) Compiled breakpoint hit Program received signal SIGTRAP, Trace/breakpoint trap. breakpoint () at kgdb-stub.c:1146 1146 } (gdb) bt #0 breakpoint () at kgdb-stub.c:1146 #1 0x1002d21c in kmem_report_free_err (str=3D0x10187f54 "\204\177\030\020d= \177\030\020=C0=D7\002\020=C0=D1\002\020\020\237\030\020\b\220=FF\020`=A7= =FF\020L\237\030\020", objp=3D0x1002d21c, cachep=3D ../../src/gdb/findvar.c:706: internal-error: value_from_register: Value not= stored anywhere! A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) y ../../src/gdb/findvar.c:706: internal-error: value_from_register: Value not= stored anywhere! A problem internal to GDB has been detected, further debugging may prove unreliable. Create a core file of GDB? (y or n) y