From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 25 Jul 2002 23:16:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 25 Jul 2002 23:16:03 -0400 Received: from roc-24-93-20-125.rochester.rr.com ([24.93.20.125]:25085 "EHLO www.kroptech.com") by vger.kernel.org with ESMTP id ; Thu, 25 Jul 2002 23:16:02 -0400 Date: Thu, 25 Jul 2002 23:19:14 -0400 From: Adam Kropelin To: linux-kernel@vger.kernel.org Subject: 2.5.28: "bad: schedule() with irqs disabled!" Message-ID: <20020726031914.GA32749@www.kroptech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org With 2.5.28 compiled for SMP+preempt (and running on 2 CPU SMP box) I get... bad: schedule() with irqs disabled! ...followed by a backtrace early in the boot process. Without preempt this notice does not appear. Below is a decoded version followed by the original with several lines of context in case that is of use. --Adam ksymoops 2.4.1 on i686 2.5.28. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.5.28/ (default) -m /boot/System.map-2.5.28 (default) Warning: You did not tell me where to find symbol information. I will assume that the log matches the kernel and modules that are running right now and I'll use the default options above for symbol resolution. If the current kernel and/or modules do not match the log, you can get more accurate output by telling me the kernel version and where to find map, modules, ksyms etc. ksymoops -h explains the options. No modules in ksyms, skipping objects Warning (read_lsmod): no symbols in lsmod, is /proc/modules a valid lsmod file? Warning (compare_maps): ksyms_base symbol GPLONLY___wake_up_sync not found in System.map. Ignoring ksyms_base entry Warning (compare_maps): ksyms_base symbol GPLONLY_idle_cpu not found in System.map. Ignoring ksyms_base entry Warning (compare_maps): ksyms_base symbol GPLONLY_set_cpus_allowed not found in System.map. Ignoring ksyms_base entry c9fd1f84 c0288240 c0346436 c0313900 c0119844 00000000 00000001 00000000 c02dd7fe c028723d 00000001 00000000 00000000 00000000 00000000 c02dfac5 00000bd1 c02d8000 00000286 c02c0724 c02d9f94 c01154ec 00000000 c02d8000 Call Trace: [] [] [] [] Warning (Oops_read): Code line not seen, dumping what data is available Trace; c0119844 Trace; c01154ec <__wake_up+2c/50> Trace; c0115505 <__wake_up+45/50> Trace; c0119850 6 warnings issued. Results may not be reliable. CPU0: Intel 00/01 stepping 09 per-CPU timeslice cutoff: 730.16 usecs. task migration cache decay timeout: 1 msecs. enabled ExtINT on CPU#0 ESR value before enabling vector: 00000004 ESR value after enabling vector: 00000000 Booting processor 1/1 eip 2000 Initializing CPU#1 bad: schedule() with irqs disabled! c9fd1f84 c0288240 c0346436 c0313900 c0119844 00000000 00000001 00000000 c02dd7fe c028723d 00000001 00000000 00000000 00000000 00000000 c02dfac5 00000bd1 c02d8000 00000286 c02c0724 c02d9f94 c01154ec 00000000 c02d8000 Call Trace: [] [] [] [] masked ExtINT on CPU#1 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 Calibrating delay loop... 397.31 BogoMIPS CPU: Before vendor init, caps: 0000fbff 00000000 00000000, vendor = 0 CPU: L1 I cache: 8K, L1 D cache: 8K CPU: L2 cache: 256K CPU: After vendor init, caps: 0000fbff 00000000 00000000 00000000 Intel machine check reporting enabled on CPU#1. CPU: After generic, caps: 0000fbff 00000000 00000000 00000000 CPU: Common caps: 0000fbff 00000000 00000000 00000000 CPU1: Intel 00/01 stepping 09 Total of 2 processors activated (787.45 BogoMIPS).