From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759712AbZACK64 (ORCPT ); Sat, 3 Jan 2009 05:58:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753136AbZACK6s (ORCPT ); Sat, 3 Jan 2009 05:58:48 -0500 Received: from mail.gmx.net ([213.165.64.20]:39919 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752982AbZACK6q (ORCPT ); Sat, 3 Jan 2009 05:58:46 -0500 X-Authenticated: #704063 X-Provags-ID: V01U2FsdGVkX19PjJlVqdNPIKaJ/YPz5cqABSC8yljUzxJRcjKr+E Pwo62uicIdw+FK Date: Sat, 3 Jan 2009 11:58:41 +0100 From: Eric Sesterhenn To: linux-kernel@vger.kernel.org Cc: rml@tech9.net Subject: Preemt warning during boot Message-ID: <20090103105841.GA17078@alice> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Editor: Vim http://www.vim.org/ X-Info: http://www.snake-basket.de X-Operating-System: Linux/2.6.28-rc9-00057-g8960223 (x86_64) X-Uptime: 11:51:24 up 2:42, 9 users, load average: 0.10, 0.10, 0.20 User-Agent: Mutt/1.5.16 (2007-06-09) X-Y-GMX-Trusted: 0 X-FuHaFi: 0.5600000000000001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, with todays -git I get the following oops on startup. I also saw this with 2.6.28-04980-gb58602a. [ 0.000999] ODEBUG: selftest passed [ 0.001064] ------------[ cut here ]------------ [ 0.001172] WARNING: at kernel/sched.c:4398 sub_preempt_count+0x89/0xe3() [ 0.001291] Hardware name: System Name [ 0.001392] Modules linked in: [ 0.001530] Pid: 0, comm: swapper Not tainted 2.6.28-05356-g6680598 #156 [ 0.001648] Call Trace: [ 0.001752] [] warn_slowpath+0x79/0x8f [ 0.001877] [] ? check_usage_forwards+0x62/0x84 [ 0.001993] [] ? __lock_acquire+0x6cf/0x725 [ 0.001999] [] ? native_sched_clock+0x41/0x68 [ 0.001999] [] ? trace_hardirqs_on+0xb/0xd [ 0.001999] [] ? _spin_unlock_irq+0x27/0x47 [ 0.001999] [] ? trace_hardirqs_on_caller+0x106/0x15a [ 0.001999] [] ? _spin_unlock_irq+0x32/0x47 [ 0.001999] [] sub_preempt_count+0x89/0xe3 [ 0.001999] [] _local_bh_enable+0x8f/0x91 [ 0.001999] [] __do_softirq+0xee/0xf6 [ 0.001999] [] ? __do_softirq+0x0/0xf6 [ 0.001999] [] ? handle_level_irq+0x0/0xc1 [ 0.001999] [] ? irq_exit+0x40/0x7c [ 0.001999] [] ? do_IRQ+0xe1/0xf8 [ 0.001999] [] ? common_interrupt+0x2c/0x34 [ 0.001999] [] ? tick_do_update_jiffies64+0x6c/0x11b [ 0.001999] [] ? _spin_unlock_irqrestore+0x3d/0x5d [ 0.001999] [] ? __setup_irq+0x177/0x1f3 [ 0.001999] [] ? setup_irq+0x1e/0x22 [ 0.001999] [] ? time_init_hook+0x2b/0x2d [ 0.001999] [] ? hpet_time_init+0x16/0x18 [ 0.001999] [] ? start_kernel+0x24c/0x2bc [ 0.001999] [] ? i386_start_kernel+0x83/0x8b [ 0.001999] ---[ end trace 4eaa2a86a8e2da22 ]--- Greetings, Eric