Date: Thu, 16 Jun 2005 12:42:36 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Sean McNeil <sean@mcneil.com> Cc: amd64@freebsd.org Subject: Re: easy to crash -STABLE with debugger Message-ID: <20050616164236.GA60548@xor.obsecurity.org> In-Reply-To: <1118888191.67168.5.camel@server.mcneil.com> References: <1118888191.67168.5.camel@server.mcneil.com>
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--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--
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