From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267772AbUHSAua (ORCPT ); Wed, 18 Aug 2004 20:50:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267776AbUHSAua (ORCPT ); Wed, 18 Aug 2004 20:50:30 -0400 Received: from jive.SoftHome.net ([66.54.152.27]:49389 "HELO jive.SoftHome.net") by vger.kernel.org with SMTP id S267772AbUHSAu0 (ORCPT ); Wed, 18 Aug 2004 20:50:26 -0400 Message-ID: <4123F9B5.4020702@softhome.net> Date: Wed, 18 Aug 2004 17:52:05 -0700 From: Brannon Klopfer User-Agent: Mozilla Thunderbird 0.7.1 (X11/20040626) X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: 2.6.8.1: kernel panic rmmod'ing apm Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Linux littleblue 2.6.8.1 #81 Wed Aug 18 17:13:39 PDT 2004 i686 unknown unknown GNU/Linux Gnu C 3.3.4 Gnu make 3.80 binutils 2.15.90.0.3 util-linux 2.12a mount 2.12a module-init-tools 3.0 e2fsprogs 1.35 jfsutils 1.1.6 xfsprogs 2.6.13 pcmcia-cs 3.2.7 quota-tools 3.12. PPP 2.4.2 nfs-utils 1.0.6 Linux C Library 2.3.2 Dynamic linker (ldd) 2.3.2 Linux C++ Library 5.0.6 Procps 3.2.1 Net-tools 1.60 Kbd 1.12 Sh-utils 5.2.1 Modules Loaded snd_cs4236 snd_opl3_lib snd_hwdep snd_cs4236_lib snd_mpu401_uart snd_rawmidi snd_cs4231_lib nfsd exportfs intel_agp uhci_hcd serial_cs 3c574_cs ds yenta_socket pcmcia_core agpgart ----------------------------- Hello, When rmmod'ing apm, I get a kernel panic. However, the machine continues to function properly, AFAIK. Here's the dmesg: [snip] Unable to handle kernel paging request at virtual address d2d9f211 printing eip: d2d9f211 *pde = 01357067 *pte = 00000000 Oops: 0000 [#1] PREEMPT Modules linked in: snd_cs4236 snd_opl3_lib snd_hwdep snd_cs4236_lib snd_mpu401_uart snd_rawmidi snd_cs4231_lib nfsd exportfs intel_agp uhci_hcd serial_cs 3c574_cs ds yenta_socket pcmcia_core agpgart CPU: 0 EIP: 0060:[] Not tainted EFLAGS: 00010246 (2.6.8.1) EIP is at 0xd2d9f211 eax: 00000000 ebx: 00000000 ecx: ffffffff edx: c03c0000 esi: 00011ff9 edi: 00000202 ebp: 00000001 esp: c03c0f84 ds: 007b es: 007b ss: 0068 Process swapper (pid: 0, threadinfo=c03c0000 task=c033fa40) Stack: 00005305 00000000 00000000 00090000 c03e0000 c03c0000 00011ff9 0000000a 00000001 d2d9f373 00005305 00000000 00000000 c03c0fbc 00005305 d2d9f4ab c03c0000 00099100 c03e0120 00423007 c0102164 c03c0000 c03c1723 c033fa40 Call Trace: [] cpu_idle+0x34/0x40 [] start_kernel+0x163/0x180 [] unknown_bootoption+0x0/0x160 Code: Bad EIP value. <0>Kernel panic: Attempted to kill the idle task! In idle task - not syncing [END] After that, the module is gone, and everything works fine. I just tried inserting and removeing it subsequent times, and it works with no errors (so far). I only rmmod when apm is used by nothing. The only reason I'm messing around with the apm module is that Loki's UT seems to (sometimes) run much too fast with APM support in kernel, and rmmod'ing it out seems to do the trick. This is probably indicitive of another problem, though my system seems pretty stable (other than that kernel panic...). All said, this doesn't bother me, as my system stays up. -Brannon Klopfer