From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934194AbXC0TRa (ORCPT ); Tue, 27 Mar 2007 15:17:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S934195AbXC0TRa (ORCPT ); Tue, 27 Mar 2007 15:17:30 -0400 Received: from staging.airflowsciences.com ([66.178.220.191]:46341 "EHLO staging.airflowsciences.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934194AbXC0TR3 (ORCPT ); Tue, 27 Mar 2007 15:17:29 -0400 X-Greylist: delayed 3533 seconds by postgrey-1.27 at vger.kernel.org; Tue, 27 Mar 2007 15:17:29 EDT Message-ID: <46095FF7.3070407@airflowsciences.com> Date: Tue, 27 Mar 2007 14:18:31 -0400 From: "Robert K. Nelson" User-Agent: Thunderbird 1.5.0.10 (X11/20060911) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: 2.6.18.2 kernel NULL pointer dereference at virtual address 00000000 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I am getting a BUG report on the following SuSE 10.2 system: $ uname -a Linux ascbackup 2.6.18.2-34-default #1 SMP Mon Nov 27 11:46:27 UTC 2006 i686 i686 i386 GNU/Linux The only clear effect I'm seeing is that the system beeps and dumps the following message in /var/log/messages every 5 to 15 seconds for some period of time. Eventually this stops for a while, and then starts up again. Any input is appreciated, and if I can help trace it down, let me know. Please cc: me with any response. Mar 27 12:46:50 ascbackup kernel: <1>BUG: unable to handle kernel NULL pointer dereference at virtual address 00000000 Mar 27 12:46:50 ascbackup kernel: printing eip: Mar 27 12:46:50 ascbackup kernel: c0102005 Mar 27 12:46:50 ascbackup kernel: *pde = 00000000 Mar 27 12:46:50 ascbackup kernel: Oops: 0002 [#11361] Mar 27 12:46:50 ascbackup kernel: SMP Mar 27 12:46:50 ascbackup kernel: last sysfs file: /class/scsi_host/host0/stats Mar 27 12:46:50 ascbackup kernel: Modules linked in: nls_utf8 cifs nfs ipv6 nfsd autofs4 exportfs lockd nfs_acl sunrpc button battery ac apparmor aamatch_pcre loop dm_mod e1000 ide_cd i8xx_tco cdrom intel_rng i2c_i801 uhci_hcd usbcore i2c_core e7xxx_edac shpchp edac_mc pci_hotplug parport_pc lp parport ext3 mbcache jbd edd fan thermal processor st aic7xxx scsi_transport_spi sg 3w_xxxx piix sd_mod scsi_mod ide_disk ide_core Mar 27 12:46:50 ascbackup kernel: CPU: 0 Mar 27 12:46:50 ascbackup kernel: EIP: 0060:[] Tainted: G U VLI Mar 27 12:46:50 ascbackup kernel: EFLAGS: 00010246 (2.6.18.2-34-default #1) Mar 27 12:46:50 ascbackup kernel: EIP is at kernel_thread_helper+0x5/0xb Mar 27 12:46:50 ascbackup kernel: eax: 00000000 ebx: c0131360 ecx: ffffffff edx: ffffffff Mar 27 12:46:50 ascbackup kernel: esi: 00000000 edi: 00000000 ebp: 00000000 esp: f3365fec Mar 27 12:46:50 ascbackup kernel: ds: 007b es: 007b ss: 0068 Mar 27 12:46:50 ascbackup kernel: Process pdflush (pid: 29556, ti=f3364000 task=c3a372c0 task.ti=f3364000) Mar 27 12:46:50 ascbackup kernel: Stack: db0bbf60 00000000 00000000 61053c48 fe154007 Mar 27 12:46:50 ascbackup kernel: Call Trace: Mar 27 12:46:50 ascbackup kernel: Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 89 d0 52 ff d3 <00> 00 40 3b ff 53 4d 42 2e 00 00 00 00 40 3b ff 53 4d 42 2e 00 Mar 27 12:46:50 ascbackup kernel: EIP: [] kernel_thread_helper+0x5/0xb SS:ESP 0068:f3365fec P.S. A user of Unix since I worked on an OS in 1976 at Cornell, moved my company to HP-UX in 1983, and moved us over to Linux in 1998. Many thanks to all who have been a part of this proud heritage. -- Robert K. Nelson President Airflow Sciences Corporation 12190 Hubbard Street, Livonia, MI 48150-1737 (734) 525-0300 FAX (734) 525-0303 www.airflowsciences.com