From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750744AbWAaK24 (ORCPT ); Tue, 31 Jan 2006 05:28:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750745AbWAaK24 (ORCPT ); Tue, 31 Jan 2006 05:28:56 -0500 Received: from ganesha.gnumonks.org ([213.95.27.120]:27046 "EHLO ganesha.gnumonks.org") by vger.kernel.org with ESMTP id S1750742AbWAaK2z (ORCPT ); Tue, 31 Jan 2006 05:28:55 -0500 Date: Tue, 31 Jan 2006 11:28:52 +0100 From: Harald Welte To: Reuben Farrelly Cc: Andrew Morton , Linux Kernel Mailinglist , Linux Netdev List Subject: Re: ip_conntrack related slab error (Re: Fw: Re: 2.6.16-rc1-mm3) Message-ID: <20060131102852.GV4603@sunbeam.de.gnumonks.org> References: <20060130221429.5f12d947.akpm@osdl.org> <20060131092447.GL4603@sunbeam.de.gnumonks.org> <43DF3677.8040701@reub.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="tWRTUBMosAF2WQf4" Content-Disposition: inline In-Reply-To: <43DF3677.8040701@reub.net> User-Agent: mutt-ng devel-20050619 (Debian) X-Spam-Score: 0.0 (/) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --tWRTUBMosAF2WQf4 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jan 31, 2006 at 11:05:43PM +1300, Reuben Farrelly wrote: > >>slab error in kmem_cache_destroy(): cache `ip_conntrack': Can't free al= l objects > >> [] show_trace+0xd/0xf > >> [] dump_stack+0x17/0x19 > >> [] kmem_cache_destroy+0x9b/0x1a9 > >> [] ip_conntrack_cleanup+0x5d/0x10e [ip_conntrack] > >> [] init_or_cleanup+0x1f8/0x283 [ip_conntrack] > >> [] fini+0xa/0x66 [ip_conntrack] > >> [] sys_delete_module+0x161/0x1fb > >> [] sysenter_past_esp+0x54/0x75 > >>Removing netfilter NETLINK layer. > >>[root@tornado log]# > >>I was just reading IMAP mail at the time, ie same as I'd been doing for= an hour or two beforehand and not=20 > >>altering config of the box in any way. I was able to log on via consol= e but lost all network connectivity and=20 > >>had to reboot :( > >The codepath you see in that backtrace is only hit during load or > >removal of the 'ip_conntrack' module. While this certainly still should > >not oops, your description of 'not doing anything but IMAP reading' is > >certainly not true. =20 >=20 > With the greatest of respect (which I do have for you Harald), I don't > think being essentially called a liar is very fair. I didn't want to imply that you are lying, but merely point out that something was going on on your system that you didn't be aware of. Sorry if that was to be misunderstood. Without knowing what actually happened at the time you encountered the bug, it is hard for me to try and reproduce / understand it. This is not a lame excuse. --=20 - Harald Welte http://netfilter.org/ =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D "Fragmentation is like classful addressing -- an interesting early architectural error that shows how much experimentation was going on while IP was being designed." -- Paul Vixie --tWRTUBMosAF2WQf4 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) iD8DBQFD3zvkXaXGVTD0i/8RAhA1AKCxE/aFmCfpCURTvDJrUh4ZGWrd0gCfUAp6 hkco6uCZK4UVkPMdaRO7zrA= =l9sR -----END PGP SIGNATURE----- --tWRTUBMosAF2WQf4--