From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757362AbYERQIK (ORCPT ); Sun, 18 May 2008 12:08:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753515AbYERQH6 (ORCPT ); Sun, 18 May 2008 12:07:58 -0400 Received: from main.gmane.org ([80.91.229.2]:50955 "EHLO ciao.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751735AbYERQH6 (ORCPT ); Sun, 18 May 2008 12:07:58 -0400 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: Sitsofe Wheeler Subject: Re: [BUG] unable to handle kernel paging request in next-20080516 Date: Sun, 18 May 2008 17:00:30 +0100 Message-ID: References: <20080518021423.3dcf0ddd.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7Bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: cpc1-cwma5-0-0-cust137.swan.cable.ntl.com User-Agent: KNode/0.10.4 Cc: linux-scsi@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andrew Morton wrote: > (cc's added) > > On Sat, 17 May 2008 12:50:24 +0000 (UTC) Sitsofe Wheeler > wrote: > >> Sometimes when booting next-20080516 on Ubuntu Gutsy an oops then a panic >> will occur. At first I thought it might be provoked by vga=0x164 but this >> does not appear to be the case and the issue is seemingly random. I've >> hand transcribed the oops so there may be errors in it but hopefully it >> will still help: >> >> BUG: unable to handle kernel paging request at e6f17fac >> IP: [] scsi_bus_uevent+0x1/0x17 >> *pde = 2714b163 *pte = 26f17160 >> Oops: 0000 [#1] DEBUG_PAGEALLOC >> last sysfs file: >> > > I thought we'd already fixed this? If it hasn't yet been fixed I think it can be narrowed down to [dc16f5f2ede8cc2acf8ac22857a7fecf3a4296c2] PNP: make generic pnp_add_dma_resource() . Be aware that the problem also seems to go away if an initrd file is present. I struggled to revert this commit against the latest linux-next due to conflicts. Here's the commit message: Author: Bjorn Helgaas 2008-04-28 23:34:35 Committer: Len Brown 2008-04-29 08:22:28 Child: cc8c2e308194f0997c718c7c735550ff06754d20 (PNP: make generic pnp_add_io_resource()) Branches: v2.6.26rc1, remotes/origin/master, remotes/linux-next/stable, remotes/linux-next/master, remotes/linux-next/history, master, linux-next, bisect Follows: v2.6.25 Precedes: v2.6.26-rc1, next-20080502, next-20080501, next-20080430 PNP: make generic pnp_add_dma_resource() Add a pnp_add_dma_resource() that can be used by all the PNP backends. This consolidates a little more pnp_resource_table knowledge into one place. Signed-off-by: Bjorn Helgaas Signed-off-by: Len Brown Here's the git-bisect log: # bad: [2ddcca36c8bcfa251724fe342c8327451988be0d] Linux 2.6.26-rc1 # good: [4b119e21d0c66c22e8ca03df05d9de623d0eb50f] Linux 2.6.25 git-bisect start 'v2.6.26-rc1' 'v2.6.25' # good: [7ae44cfa7ab29b277691327e8de790d7b880722f] [ALSA] snd-powermac: style awacs.s and awacs.h git-bisect good 7ae44cfa7ab29b277691327e8de790d7b880722f # good: [c60264c494a119cd3a716a22edc0137b11de6d1e] smack: fix integer as NULL pointer warning in smack_lsm.c git-bisect good c60264c494a119cd3a716a22edc0137b11de6d1e # good: [3977c965ec35ce1a7eac988ad313f0fc9aee9660] ext4: zero out small extents when writing to prealloc area. git-bisect good 3977c965ec35ce1a7eac988ad313f0fc9aee9660 # good: [ccf2779544eecfcc5447e2028d1029b6d4ff7bb6] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 git-bisect good ccf2779544eecfcc5447e2028d1029b6d4ff7bb6 # bad: [55e462b05b5df4fd113c4a304c4f487d44b0898e] memcg: simple stats for memory resource controller git-bisect bad 55e462b05b5df4fd113c4a304c4f487d44b0898e # good: [96916090f488986a4ebb8e9ffa6a3b50881d5ccd] Merge branches 'release', 'acpica', 'bugzilla-10224', 'bugzilla-9772', 'bugzilla-9916', 'ec', 'eeepc', 'idle', 'misc', 'pm-legacy', 'sysfs-links-2.6.26', 'thermal', 'thinkpad' and 'video' into release git-bisect good 96916090f488986a4ebb8e9ffa6a3b50881d5ccd # bad: [6de3d58dcfbab516dbe9aff36ea9542f40cd1bf2] Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6 git-bisect bad 6de3d58dcfbab516dbe9aff36ea9542f40cd1bf2 # good: [f5d94ff014cb7e6212f40fc6644f3fd68507df33] PNP: pass resources, not indexes, to pnp_check_port(), et al git-bisect good f5d94ff014cb7e6212f40fc6644f3fd68507df33 # bad: [d152cf5d0c3325979e71ee53b425fdd51a1a285a] PNPACPI: move _CRS/_PRS warnings closer to the action git-bisect bad d152cf5d0c3325979e71ee53b425fdd51a1a285a # good: [784f01d5bdeae7d7005ede17305306b042ba2617] PNP: add struct pnp_resource git-bisect good 784f01d5bdeae7d7005ede17305306b042ba2617 # good: [dbddd0383c59d588f8db5e773b062756e39117ec] PNP: make generic pnp_add_irq_resource() git-bisect good dbddd0383c59d588f8db5e773b062756e39117ec # bad: [cc8c2e308194f0997c718c7c735550ff06754d20] PNP: make generic pnp_add_io_resource() git-bisect bad cc8c2e308194f0997c718c7c735550ff06754d20 # bad: [dc16f5f2ede8cc2acf8ac22857a7fecf3a4296c2] PNP: make generic pnp_add_dma_resource() git-bisect bad dc16f5f2ede8cc2acf8ac22857a7fecf3a4296c2 -- Sitsofe | http://sucs.org/~sits/