Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754519AbZLYK2H (ORCPT ); Fri, 25 Dec 2009 05:28:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752518AbZLYK2G (ORCPT ); Fri, 25 Dec 2009 05:28:06 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:50201 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752024AbZLYK2E (ORCPT ); Fri, 25 Dec 2009 05:28:04 -0500 Date: Fri, 25 Dec 2009 11:27:31 +0100 From: Ingo Molnar To: Linus Torvalds , Len Brown , Dmitry Torokhov , Matthew Garrett Cc: Linux Kernel Mailing List Subject: -tip: origin tree boot crash Message-ID: <20091225102731.GA25513@elte.hu> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4472 Lines: 87 Today's -tip crashed during bootup on one of my testsystems: [ 28.616777] initcall eeepc_laptop_init+0x0/0x4d returned -19 after 29853 usecs [ 28.624002] calling dell_wmi_init+0x0/0x126 @ 1 [ 28.629128] device: 'input1': device_add [ 28.633113] PM: Adding info for No Bus:input1 [ 28.637678] input: Dell WMI hotkeys as /class/input/input1 [ 28.643216] evbug.c: Connected device: input1 (Dell WMI hotkeys at wmi/input0) [ 28.650449] BUG: unable to handle kernel NULL pointer dereference at 00000014 [ 28.654439] IP: [] wmi_install_notify_handler+0x31/0x70 [ 28.654439] *pde = 00000000 [ 28.654439] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 28.654439] last sysfs file: [ 28.654439] Modules linked in: [ 28.654439] [ 28.654439] Pid: 1, comm: swapper Not tainted 2.6.33-rc2-tip-00158-g2bd999a-dirty #2238 A8N-E/System Product Name [ 28.654439] EIP: 0060:[] EFLAGS: 00010282 CPU: 0 [ 28.654439] EIP is at wmi_install_notify_handler+0x31/0x70 [ 28.654439] EAX: 00000006 EBX: c17f55d0 ECX: 0000009d EDX: fffffff4 [ 28.654439] ESI: 00000000 EDI: 00000000 EBP: f7052f90 ESP: f7052f84 [ 28.654439] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 [ 28.654439] Process swapper (pid: 1, ti=f7052000 task=f7070000 task.ti=f7052000) [ 28.654439] Stack: [ 28.654439] fffffff4 00000000 00000006 f7052fa4 c2165992 aa66398a 00000006 aa66398a [ 28.654439] <0> f7052fd0 c1001122 c1d58799 c2165874 00000001 0000749d 00000000 c2165874 [ 28.654439] <0> c219a214 c21271d6 00000000 f7052fe4 c2127262 00000000 000000e0 00000000 [ 28.654439] Call Trace: [ 28.654439] [] ? dell_wmi_init+0x11e/0x126 [ 28.654439] [] ? do_one_initcall+0x32/0x1d0 [ 28.654439] [] ? dell_wmi_init+0x0/0x126 [ 28.654439] [] ? dell_wmi_init+0x0/0x126 [ 28.654439] [] ? kernel_init+0x0/0xe0 [ 28.654439] [] ? kernel_init+0x8c/0xe0 [ 28.654439] [] ? kernel_thread_helper+0x6/0x10 [ 28.654439] Code: 89 5d f8 89 75 fc e8 cf b4 80 ff 85 d2 89 d3 89 ce 74 2f 85 c0 74 2b 8d 55 f4 e8 0b fd ff ff 8b 55 f4 b8 06 00 00 00 85 d2 74 09 <8b> 4a 20 b0 15 85 c9 74 1e 8b 5d f8 8b 75 fc 89 ec 5d c3 8d 74 [ 28.654439] EIP: [] wmi_install_notify_handler+0x31/0x70 SS:ESP 0068:f7052f84 [ 28.654439] CR2: 0000000000000014 [ 28.819532] ---[ end trace 6cbbad4ca20c038d ]--- [ 28.824158] Kernel panic - not syncing: Fatal exception [ 28.829394] Pid: 1, comm: swapper Tainted: G D 2.6.33-rc2-tip-00158-g2bd999a-dirty #2238 [ 28.838180] Call Trace: [ 28.840626] [] ? printk+0x1d/0x1f [ 28.844909] [] panic+0x48/0xf7 [ 28.848930] [] oops_end+0xb9/0xd0 [ 28.853210] [] no_context+0xc6/0x160 [ 28.857752] [] __bad_area_nosemaphore+0x90/0x140 [ 28.863334] [] bad_area_nosemaphore+0x17/0x20 [ 28.868656] [] do_page_fault+0x2dd/0x380 [ 28.873545] [] ? dell_wmi_notify+0x0/0x170 [ 28.878604] [] ? do_page_fault+0x0/0x380 [ 28.883494] [] error_code+0x70/0x80 [ 28.887947] [] ? dell_wmi_notify+0x0/0x170 [ 28.893007] [] ? wmi_install_notify_handler+0x31/0x70 [ 28.899024] [] dell_wmi_init+0x11e/0x126 [ 28.903910] [] do_one_initcall+0x32/0x1d0 [ 28.908885] [] ? dell_wmi_init+0x0/0x126 [ 28.913774] [] ? dell_wmi_init+0x0/0x126 [ 28.918662] [] ? kernel_init+0x0/0xe0 [ 28.923289] [] kernel_init+0x8c/0xe0 [ 28.927831] [] kernel_thread_helper+0x6/0x10 The crash is due to this commit from yesterday's (v2.6.33-rc2) upstream tree: | commit 1fdd407f4e3f2ecb453954cbebb6c22491c61853 | Author: Dmitry Torokhov | Date: Thu Dec 17 22:19:42 2009 -0800 | | dell-wmi: do not keep driver loaded on unsupported boxes | | There is no point in having the driver loaded in memory if we fail | to locate particular WMI GUID. | | Signed-off-by: Dmitry Torokhov | Acked-by: Matthew Garrett | Signed-off-by: Len Brown I've reverted the commit from -tip for now. Thanks, Ingo -- 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/