From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 13 Dec 2001 16:31:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 13 Dec 2001 16:31:06 -0500 Received: from mailb.telia.com ([194.22.194.6]:35084 "EHLO mailb.telia.com") by vger.kernel.org with ESMTP id ; Thu, 13 Dec 2001 16:30:58 -0500 Message-Id: <200112132130.fBDLUr511956@mailb.telia.com> Content-Type: text/plain; charset="iso-8859-1" From: Roger Larsson To: Jens Axboe , Sebastian =?iso-8859-1?q?Dr=F6ge?= Subject: Unable to handle kernel NULL pointer dereference at virtual address 00000000 (Was: Re: 2.5.1-pre2 compile error in ide-scsi.o ide-scsi.c) Date: Thu, 13 Dec 2001 22:28:35 +0100 X-Mailer: KMail [version 1.3.2] Cc: linux-kernel@vger.kernel.org In-Reply-To: <20011128135552.204311E532@Cantor.suse.de> <20011129143538.3A4F81E128@Cantor.suse.de> <20011129175441.N10601@suse.de> In-Reply-To: <20011129175441.N10601@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thursdayen den 29 November 2001 17.54, Jens Axboe wrote: > On Thu, Nov 29 2001, Sebastian Dröge wrote: > > Sorry my mistake > > I've meant this patch: > > http://kernel.org/pub/linux/kernel/people/axboe/patches/v2.5/2.5.1-pre3/b > >io-pre3-1.gz > > > > So it's 2.5.1-pre3 + Alan's patch + bio-pre3-1 + the patch you've posted > > after the 2.5.1-pre3 don't-use mail > > > > There were no failures while patching so I think this patches are > > compatible each other ;) > > Yes sure, that's what I expected. THe part I didn't understand was the > sr-sg-1 part. > > > And it works well... no data corruption, no oopses, no nothing ;) > > Later the day I'll test burning a CD > > Good Hmm... I got the BUG described earlier in this thread with a 2.4.16 kernel (sligtly patched but in a different area - update the page structure referenced bit when scheduling away a process - it has been running for several days) The driver in question is a "Pioneer DVD-ROM ATAPIModel DVD-115 0122" And i tried to mount a Windows CD - Joliet? It looks like this: Dec 13 22:07:00 jeloin kernel: VFS: Disk change detected on device ide1(22,64) Dec 13 22:07:03 jeloin kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 Dec 13 22:07:03 jeloin kernel: printing eip: Dec 13 22:07:03 jeloin kernel: d0894866 Dec 13 22:07:03 jeloin kernel: *pde = 00000000 Dec 13 22:07:03 jeloin kernel: Oops: 0002 Dec 13 22:07:03 jeloin kernel: CPU: 0 Dec 13 22:07:03 jeloin kernel: EIP: 0010:[] Not tainted Dec 13 22:07:03 jeloin kernel: EFLAGS: 00210202 Dec 13 22:07:03 jeloin kernel: eax: cf8b4600 ebx: 00000001 ecx: c6fa3000 edx: cbceb040 Dec 13 22:07:03 jeloin kernel: esi: c6fa3000 edi: 00000000 ebp: c7ad0f60 esp: c8403e88 Dec 13 22:07:03 jeloin kernel: ds: 0018 es: 0018 ss: 0018 Dec 13 22:07:03 jeloin kernel: Process kdeinit (pid: 1195, stackpage=c8403000) Dec 13 22:07:03 jeloin kernel: Stack: 00000001 c6fa3000 c6fa3021 c7ad0f60 00001640 00000000 00000000 00000000 Dec 13 22:07:03 jeloin kernel: 00000000 00000000 00000000 00000800 cbceb040 d089227e c6fa3000 00000000 Dec 13 22:07:03 jeloin kernel: cbceb040 c12bc640 cbceb040 cbceb040 c7702360 00000030 00000030 00000000 Dec 13 22:07:03 jeloin kernel: Call Trace: [] [] [real_lookup+83/196] [link_path_walk+1302/1880] [getname+93/156] Dec 13 22:07:03 jeloin kernel: [path_walk+26/28] [__user_walk+53/80] [sys_access+148/300] [system_call+51/56] Dec 13 22:07:03 jeloin kernel: Dec 13 22:07:03 jeloin kernel: Code: c6 07 00 0f b6 51 20 8d 42 21 89 44 24 30 83 e0 01 83 c2 22 Dec 13 22:09:19 jeloin modprobe: modprobe: Can't locate module net-pf-10 I have ide-scsi but that is only used on my CDRW "Vendor: HP Model: CD-Writer+ 9300 Rev: 1.0c" Ideas? /RogerL -- Roger Larsson Skellefteå Sweden