From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753282AbZDZGgZ (ORCPT ); Sun, 26 Apr 2009 02:36:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751610AbZDZGgQ (ORCPT ); Sun, 26 Apr 2009 02:36:16 -0400 Received: from brick.kernel.dk ([93.163.65.50]:40363 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751288AbZDZGgQ (ORCPT ); Sun, 26 Apr 2009 02:36:16 -0400 Date: Sun, 26 Apr 2009 08:36:15 +0200 From: Jens Axboe To: Andrew Morton Cc: Gregory Haskins , "linux-kernel@vger.kernel.org" Subject: Re: Crash in v2.6.30-rc3 (regression from 30-rc2) Message-ID: <20090426063615.GO4593@kernel.dk> References: <49EFD2A4.6080801@novell.com> <20090422222031.17d9d72e.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090422222031.17d9d72e.akpm@linux-foundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 22 2009, Andrew Morton wrote: > On Wed, 22 Apr 2009 22:29:56 -0400 Gregory Haskins wrote: > > > Hi All, > > > > FYI: I am seeing this when moving from 30-rc2 to 30-rc3 on a 4-way > > x86_64 box. > > > > I have since reverted back to rc2, but can easily spin up the new kernel > > again to decode more info or try a fix, if desired. > > > > One data point I do have is that the box seemed to have booted when I > > forgot to add console=ttyS0 to the kernel args. I suspect the serial > > console is just changing timing, but its 100% reproducible in this setup. > > > > BUG: unable to handle kernel NULL pointer dereference at (null) > > IP: [] rb_erase+0x132/0x28c > > PGD 13a11e067 PUD 13dd1d067 PMD 0 > > Oops: 0000 [#1] SMP > > last sysfs file: > > /sys/devices/pci0000:00/0000:00:1f.1/host6/target6:0:0/6:0:0:0/type > > CPU 0 > > Modules linked in: i5000_edac shpchp rtc_core soundcore thermal sr_mod > > parport_pc processor button libphy natsemi cdrom i2c_core edac_core > > parport snd_page_alloc pcspkr serio_raw pci_hotplug rtc_lib kvm_intel sg > > joydev kvm usbhid hid linear ehci_hcd uhci_hcd sd_mod crc_t10dif usbcore > > dm_snapshot edd fan thermal_sys hwmon dm_mod ext3 mbcache jbd > > ide_pci_generic piix ide_core ata_generic ata_piix ahci libata scsi_mod > > Pid: 1561, comm: vgchange Not tainted 2.6.30-rc3-vbus #30 Precision > > WorkStation 490 > > RIP: 0010:[] [] rb_erase+0x132/0x28c > > I believe this is being worked on over in the thread titled "[BUG] > rbtree bug with mmotm 2009-04-14-17-24". It is, it is also fixed and in -git since yesterday (or friday, I forget). The commit is: 3ac6c9f8a66726745136e46f63600550c3eb6cec -- Jens Axboe