Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 19 Jul 2001 12:32:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 19 Jul 2001 12:32:25 -0400 Received: from mailout06.sul.t-online.com ([194.25.134.19]:25353 "EHLO mailout06.sul.t-online.de") by vger.kernel.org with ESMTP id ; Thu, 19 Jul 2001 12:32:12 -0400 Message-ID: <3B570B80.84AD8E8A@folkwang-hochschule.de> Date: Thu, 19 Jul 2001 18:32:00 +0200 From: =?iso-8859-1?Q?J=F6rn?= Nettingsmeier X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.7-pre6 i686) X-Accept-Language: en MIME-Version: 1.0 To: netfilter@lists.samba.org CC: netfilter-devel@lists.samba.org, nettings@folkwang-hochschule.de, christian@rubbert.de, linux-kernel@vger.kernel.org Subject: Re: kernel lockup in 2.4.5-ac3 and 2.4.6-pre7 (netfilter ?) In-Reply-To: <3B52ADC1.95012614@folkwang-hochschule.de> <3B534D06.5090405@earthlink.net> <3B56E91F.12C1AB9B@folkwang-hochschule.de> <3B56FE85.2080802@suche.org> Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Original-Recipient: rfc822;linux-kernel-outgoing [christian, i'm quoting a message of yours below. maybe this is of interest to you, so i'm cc:ing] Thomas wrote: > > J?rn Nettingsmeier wrote: > > > hello brad, hello netfilter people ! > > Brad Chapman wrote: > > > >> Were you able to rescue any console output from the hard > >> lockup; > >> i.e. you did a klogd -c 7 to capture _everything_ the kernel > >> spit out? > >> If you were able to, could you send them to the list, please? > >> > > i have just reproduced the lockup with the klogd setting you > > suggested, but no entries at all have survived. > > however, it has been pointed out to me that my lockups might be > > caused by a faulty pppoe module (i'm using a dsl connection) > > rather > > than netfilter. > > it looks like i need to investigate a little further on pppoe... > > let's see what the lkml archive has to say. > > thanks for all the helpful replies. i will keep you posted if i > > can > > solve this problem. > > > Hi, > i can't help you exactly, but i also use T-Dsl and also there it > come to hangup's ( sometimes kernel panic ) > At the moment i get it off, i switched the debug mode on and log > all the crap in an file ( hoped i find the error ) > but after debug on there was no more hangup. I'm sure it is an bug > in the pppoe system, wich come to work > when the T* have trouble and send defekt packets. The ground i > think it have to do with defekt packets is > that other frinds with dsl under windoff told me that they also > have on the same time many disconnects. > > Cu thomas i found someone else's oops report on lkml, and this is exactly the one i'm seeing, although i can't save it for lack of a serial console: > christian wrote on lkml: > > PROBLEM: Kernel Panics since i switched to T-DSL, using > masquadering. Supposed to be > fixed in 2.4.5pre9 ? > > virtual address 00008ba7 > *pde = 00000000 > Oops = 0000 > CPU = 0 > EIP = 0010:[] > EFLAGS: 00010202 > > eax: c1569940 ebx: 00008ba7 ecx: 00000000 edx: 00068ba7 > esi: c1b5ce80 edi: c15697e0 ebp: 00000060 esp: c0e41dd4 > ds: 0018 es: 0018 ss: 0018 > > Process dnetc (pid: 2152, stackpage=c0e41000) > > Stack: ffffff00 c01c976b c1b5ce80 ffffff00 c1b5ce80 c01c9d53 > c1b5ce80 c11fa800 > c1b5ce80 0000000e c1b5ce80 ffffffe6 c01cc667 c1b5ce80 > 00000020 00000004 > c1979b20 0000000e c01d0cdd c1b5ce80 00000001 00000000 > c1b5ce80 c01dabf0 > > Call Trace: [] [] [] > [] [] > [] [] > [] [] [] > [] [] > [] [] [] > > ^ f or 1 ? > (that's the f in the third entry, for those not using fixed > width fonts :) > [] [] [] > [] [] > [] [] [] > [] > > Code: 8b 1b 8b 42 70 83 f8 01 74 0b f0 ff 4a 70 0f 94 c0 84 c0 > 74 > Kernel panic: Aiee, killing interrupt handler! > In interrupt handler - not syncing. i can trigger this bug by simply typing ctrl-c in an ftp or ssh session from a machine on the local (masqueraded) network to the internet. some folks have blamed the ppp/pppoe code, but after further testing it does seem to be netfilter-related somehow, since i cannot reproduce the oops on the router itself with iptables modules unloaded. it only happens on a machine on the local network when masqueraded via the router. does this assumption make sense ? i was pointed to a ppp patch from lkml, but it seems to be relevant only to starting/stopping a ppp device. (message "[PATCH] ppp_generic.c - kfree(ppp) called twice") right now, i'm trying 2.4.7-pre8, it has a load of ppp related patches. it's still compiling atm. getting confused... j?rn -- J?rn Nettingsmeier home://Kurf?rstenstr.49.45138.Essen.Germany phone://+49.201.491621 http://icem-www.folkwang-hochschule.de/~nettings/ http://www.linuxdj.com/audio/lad/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/