From owner-freebsd-amd64@FreeBSD.ORG Thu Jun 16 16:42:37 2005 Return-Path: X-Original-To: amd64@freebsd.org Delivered-To: freebsd-amd64@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8FBEE16A41C for ; Thu, 16 Jun 2005 16:42:37 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (CPE0050040655c8-CM00111ae02aac.cpe.net.cable.rogers.com [69.194.102.232]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4B26943D1F for ; Thu, 16 Jun 2005 16:42:37 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 6FDD85142C; Thu, 16 Jun 2005 12:42:36 -0400 (EDT) Date: Thu, 16 Jun 2005 12:42:36 -0400 From: Kris Kennaway To: Sean McNeil Message-ID: <20050616164236.GA60548@xor.obsecurity.org> References: <1118888191.67168.5.camel@server.mcneil.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="RnlQjJ0d97Da+TV1" Content-Disposition: inline In-Reply-To: <1118888191.67168.5.camel@server.mcneil.com> User-Agent: Mutt/1.4.2.1i Cc: amd64@freebsd.org Subject: Re: easy to crash -STABLE with debugger X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 16 Jun 2005 16:42:37 -0000 --RnlQjJ0d97Da+TV1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jun 15, 2005 at 07:16:31PM -0700, Sean McNeil wrote: > This should not be possible, but I can crash my system with no effort. > The only thing I get logged is: >=20 > Jun 15 16:02:48 server kernel: Fatal double fault >=20 > All I have to do is run a program that seg faults or has some other > problem. The most recent one was abiword. I did the following: >=20 > gdb `which abiword` > (gdb) r >=20 > then I opened a file and did a "save as...", which causes a seg fault. > Then I did a >=20 > (gdb) c >=20 > and boom! reboot. Please set up DDB as described in the developers handbook and obtain a debugging traceback. Kris --RnlQjJ0d97Da+TV1 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFCsav8Wry0BWjoQKURAvB4AKDYDe9au4//sLErAG1epGifb8JKZwCgxMZ4 4oxK38/9DcL4G+O/M3O5nRI= =l1VK -----END PGP SIGNATURE----- --RnlQjJ0d97Da+TV1--