From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753892AbYGMJ0g (ORCPT ); Sun, 13 Jul 2008 05:26:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752635AbYGMJ03 (ORCPT ); Sun, 13 Jul 2008 05:26:29 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:54413 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752631AbYGMJ01 (ORCPT ); Sun, 13 Jul 2008 05:26:27 -0400 Date: Sun, 13 Jul 2008 11:26:13 +0200 From: Ingo Molnar To: Yinghai Lu Cc: LKML , Mike Travis Subject: Re: per-cpu related? Message-ID: <20080713092613.GB12749@elte.hu> References: <86802c440807130116u3b850485jec220bc15892873e@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <86802c440807130116u3b850485jec220bc15892873e@mail.gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 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 * Yinghai Lu wrote: > calling pcie_portdrv_init+0x0/0x77 > BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 > IP: [] hrtick_start_fair+0x8e/0x178 > PGD 0 > Oops: 0000 [1] SMP > CPU 4 > Modules linked in: > Pid: 103, comm: events/4 Not tainted 2.6.26-rc9-tip-01834-g99e624f-dirty #354 > RIP: 0010:[] [] > hrtick_start_fair+0x8e/0x178 > RSP: 0018:ffff88082486dbd0 EFLAGS: 00010046 > RAX: 0000000000000000 RBX: ffff880824870000 RCX: 0000000000000006 > RDX: ffff88084423e700 RSI: ffff880824870000 RDI: ffff88084423e700 > RBP: ffff88082486dc00 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000000 R12: ffff88084423e700 > R13: ffff880844239700 R14: ffff880824870000 R15: 0000000000000c18 > FS: 0000000000000000(0000) GS:ffff881024c3a600(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process events/4 (pid: 103, threadinfo ffff88082486c000, task ffff880824864230) > Stack: ffff880844248118 0000000060ce4c84 ffff880844239700 ffff880824955878 > ffff88084423e700 0000000000000000 ffff88082486dc40 ffffffff80258339 > ffff88082486dc30 ffffffff805196dd 0000000060ce4c84 ffff880824955840 > Call Trace: > [] dequeue_task_fair+0x64/0x83 > [] ? __first_cpu+0x26/0x49 > [] dequeue_task+0xd3/0xf5 > [] deactivate_task+0x36/0x55 > [] pull_task+0x31/0x7d > [] load_balance_fair+0x192/0x27c > [] schedule+0x3e0/0x96d > [] ? vmstat_update+0x0/0x5e > [] ? schedule_delayed_work+0x31/0x48 > [] worker_thread+0xbb/0x114 > [] ? autoremove_wake_function+0x0/0x63 > [] ? worker_thread+0x0/0x114 > [] kthread+0x61/0xa4 > [] ? schedule_tail+0x3b/0x8a > [] child_rip+0xa/0x11 > [] ? kthread+0x0/0xa4 i've triggered a similar crash yesterday - see it below. Ingo [ 9.230000] initcall ahci_init+0x0/0x47 returned 0 after 0 msecs [ 9.240000] calling piix_init+0x0/0x55 [ 9.240000] ata_piix 0000:00:1f.1: version 2.12 [ 9.240000] IOAPIC[0]: Set routing entry (2-18 -> 0x59 -> IRQ 18 Mode:1 Active:1) [ 9.250000] ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 18 [ 9.260000] PCI: Setting latency timer of device 0000:00:1f.1 to 64 [ 9.270000] BUG: unable to handle kernel paging request at ffff88080101c1f8 [ 9.270000] IP: [] dequeue_task+0x73/0xf0 [ 9.270000] PGD 202063 PUD 0 [ 9.270000] Thread overran stack, or stack corrupted [ 9.270000] Oops: 0000 [1] SMP [ 9.270000] CPU 0 [ 9.270000] Modules linked in: [ 9.270000] Pid: 1, comm: swapper Tainted: G M 2.6.26-rc9-01344-gfa93e3e-dirty #13956 [ 9.270000] RIP: 0010:[] [] dequeue_task+0x73/0xf0 [ 9.270000] RSP: 0018:ffff88003f9b7420 EFLAGS: 00010046 [ 9.270000] RAX: ffff88000101c200 RBX: ffff88003f9b4000 RCX: ffffffff80db5d40 [ 9.270000] RDX: 00000000ffffffff RSI: ffff88003f9b6000 RDI: ffff880001026d40 [ 9.270000] RBP: ffff88003f9b7440 R08: 0000000000000000 R09: 0000000000000001 [ 9.270000] R10: 00000000ffff8e6e R11: 0000000000000000 R12: 0000000000000000 [ 9.270000] R13: ffff880001026d40 R14: 0000000000000002 R15: ffff88003f9b76c0 [ 9.270000] FS: 0000000000000000(0000) GS:ffffffff80c56640(0000) knlGS:0000000000000000 [ 9.270000] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b [ 9.270000] CR2: ffff88080101c1f8 CR3: 0000000000201000 CR4: 00000000000006e0 [ 9.270000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 9.270000] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 9.270000] Process swapper (pid: 1, threadinfo ffff88003f9b6000, task ffff88003f9b4000) [ 9.270000] Stack: 0000000076a041aa 0000000000000046 0000000076a041aa ffff880001026d40 [ 9.270000] ffff88003f9b7470 ffffffff80230674 0000000000000000 ffffffff8088c020 [ 9.270000] 0000000076a041aa 7fffffffffffffff ffff88003f9b7570 ffffffff80889898 [ 9.270000] Call Trace: [ 9.270000] [] deactivate_task+0x31/0x50 [ 9.270000] [] ? _spin_lock+0xd/0x4c [ 9.270000] [] schedule+0x20a/0x6af [ 9.270000] [] ? __enqueue_entity+0x9d/0xb3 [ 9.270000] [] ? enqueue_entity+0x1c5/0x1e6 [ 9.270000] [] schedule_timeout+0x36/0xf7 [ 9.270000] [] wait_for_common+0xee/0x17a [ 9.270000] [] ? default_wake_function+0x0/0x36 [ 9.270000] [] wait_for_completion+0x2b/0x41 [ 9.270000] [] kthread_create+0xc7/0x14d [ 9.270000] [] ? scsi_error_handler+0x0/0x552 [ 9.270000] [] ? snprintf+0x70/0x89 [ 9.270000] [] ? kref_init+0xd/0x3b [ 9.270000] [] ? kobject_init+0x5b/0xb1 [ 9.270000] [] ? klist_init+0xd/0x4c [ 9.270000] [] ? device_initialize+0x57/0xf5 [ 9.270000] [] ? __mutex_init+0xd/0x4b [ 9.270000] [] scsi_host_alloc+0x2e6/0x343 [ 9.270000] [] ata_scsi_add_hosts+0x4e/0x130 [ 9.270000] [] ata_host_register+0xb0/0x296 [ 9.270000] [] ? devres_open_group+0xb1/0xd5 [ 9.270000] [] ata_pci_sff_activate_host+0x1af/0x1f0 [ 9.270000] [] ? ata_sff_interrupt+0x0/0x26a [ 9.270000] [] piix_init_one+0x69e/0x6cb [ 9.270000] [] pci_call_probe+0x92/0xdf [ 9.270000] [] pci_device_probe+0x69/0xa9 [ 9.270000] [] driver_probe_device+0xb3/0x178 [ 9.270000] [] ? down+0x4b/0x68 [ 9.270000] [] __driver_attach+0x63/0xa4 [ 9.270000] [] ? __driver_attach+0x0/0xa4 [ 9.270000] [] bus_for_each_dev+0x63/0xb1 [ 9.270000] [] driver_attach+0x34/0x4a [ 9.270000] [] bus_add_driver+0xcc/0x22c [ 9.270000] [] ? kset_find_obj+0x4c/0x97 [ 9.270000] [] driver_register+0xbc/0x153 [ 9.270000] [] __pci_register_driver+0x67/0xb6 [ 9.270000] [] ? piix_init+0x0/0x55 [ 9.270000] [] piix_init+0x31/0x55 [ 9.270000] [] kernel_init+0x1c6/0x333 [ 9.270000] [] ? finish_task_switch+0x41/0xe0 [ 9.270000] [] child_rip+0xa/0x11 [ 9.270000] [] ? restore_args+0x0/0x30 [ 9.270000] [] ? kernel_init+0x0/0x333 [ 9.270000] [] ? child_rip+0x0/0x11 [ 9.270000] [ 9.270000] [ 9.270000] Code: 29 c8 48 29 d0 48 c1 f8 03 48 01 d0 48 89 86 a0 00 00 00 48 8b 73 08 48 8b 05 9f 66 a2 00 48 c7 c1 40 5d db 80 45 31 c0 8b 56 1c <48> 8b 04 d0 48 8b 93 10 04 00 00 48 8b 40 08 48 8b 84 01 10 08 [ 9.270000] RIP [] dequeue_task+0x73/0xf0 [ 9.270000] RSP [ 9.270000] CR2: ffff88080101c1f8 [ 9.270000] Kernel panic - not syncing: Fatal exception Press any key to enter the menu