From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2992735AbXCGX3L (ORCPT ); Wed, 7 Mar 2007 18:29:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S2992732AbXCGX3L (ORCPT ); Wed, 7 Mar 2007 18:29:11 -0500 Received: from web52909.mail.yahoo.com ([206.190.49.19]:39071 "HELO web52909.mail.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S2992735AbXCGX3J (ORCPT ); Wed, 7 Mar 2007 18:29:09 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=aeO3r9w7Hzxw/HAmUvzbCDbr5iv3NwdYAe1oh3PGUe6ARC5MCEjOyRvj0F5TARXEweZrZgUVKDAZg8yKpHQRqkZ17Vc4J58VJd7GFfF2WlnBc8jxnQIosdAh96Zmn9WG7pbWBSzKHcfBf75vlj3qpuDv9m7zhfeFD9OAwMsriwo=; X-YMail-OSG: EuBFzF0VM1n4MGYiL_ARP_belJH3OrJ1orfnIc0MguV68cLHFqcz5qqullMBCWqGjZzi5OkvWoNQ_dpPNCnNXSucPqGOOp8RSHSTVQloqEhzrIsx9tAeErbWYenQCwF4 Date: Wed, 7 Mar 2007 23:29:07 +0000 (GMT) From: Chris Rankin Subject: Re: [BUG] Linux 2.6.20.1 - unable to handle kernel paging request - accessing freed memory? To: Pekka J Enberg Cc: Randy Dunlap , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <982669.87281.qm@web52909.mail.yahoo.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --- Pekka J Enberg wrote: > Please apply this patch to your kernel and try to reproduce: > http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20/2.6.20-mm2/broken-out/gregkh-driver-sysfs-crash-debugging.patch > > It should give us a better clue which sysfs file is causing the oops. And again, except with a completely different sysfs file this time. It looks like it's Wine rather than WoW that is triggering this - all I did was execute "winecfg" this time: BUG: unable to handle kernel paging request at virtual address 6b6b6deb printing eip: c0130113 *pde = 00000000 Oops: 0002 [#1] PREEMPT SMP last sysfs file: /class/usb_endpoint/usbdev1.3_ep84/dev Modules linked in: radeon drm pwc eeprom cpufreq_ondemand p4_clockmod speedstep_lib nfsd exportfs ipv6 autofs4 nfs lockd sunrpc af_packet firmware_class binfmt_misc video thermal processor fan button ac lp parport_pc parport nvram video1394 raw1394 eth1394 sd_mod sg compat_ioctl32 videodev v4l2_common v4l1_compat snd_usb_audio snd_usb_lib snd_emu10k1_synth snd_emux_synth snd_seq_virmidi snd_seq_midi_emul snd_emu10k1 snd_rawmidi snd_ac97_codec ac97_bus ohci1394 snd_seq_dummy snd_seq_oss snd_seq_midi_event ieee1394 snd_seq e1000 sata_sil snd_pcm_oss snd_mixer_oss ehci_hcd snd_pcm uhci_hcd libata e7xxx_edac serio_raw snd_seq_device snd_timer snd_page_alloc snd_util_mem snd_hwdep snd soundcore scsi_mod edac_mc ide_cd psmouse intel_agp i2c_i801 i2c_core agpgart cdrom pcspkr usbcore ext3 jbd CPU: 2 EIP: 0060:[] Not tainted VLI EFLAGS: 00010206 (2.6.20.1 #3) EIP is at module_put+0x20/0x52 eax: 6b6b6deb ebx: 6b6b6b6b ecx: 00000001 edx: e8b24000 esi: ed7667b0 edi: 6b6b6b6b ebp: e88b162c esp: e8b24f58 ds: 007b es: 007b ss: 0068 Process udevd (pid: 4457, ti=e8b24000 task=f7fa6560 task.ti=e8b24000) Stack: e8b39640 c0183a5b 00000010 ed4a2cb4 e9cf2978 c0151253 00000000 00000000 f7ff2208 ed4a2cb4 f787e678 00000000 ed4a2cb4 c014ed90 00000003 00000003 f787e678 f787e6f8 c014fd89 00000003 00000007 00000003 e8b24000 c0102bce Call Trace: [] sysfs_release+0x2d/0x4c [] __fput+0x96/0x13c [] filp_close+0x51/0x58 [] sys_close+0x70/0xa7 [] sysenter_past_esp+0x5f/0x85 [] __sched_text_start+0x6b3/0x965 ======================= Code: 00 89 f0 83 c4 0c 5b 5e 5f 5d c3 53 89 c3 85 c0 74 49 b8 01 00 00 00 e8 5f 49 fe ff e8 3b 5b 07 00 c1 e0 07 8d 84 18 80 01 00 00 08 83 3b 02 75 0b 8b 83 88 05 00 00 e8 a9 45 fe ff b8 01 00 EIP: [] module_put+0x20/0x52 SS:ESP 0068:e8b24f58 <6>note: udevd[4457] exited with preempt_count 1 BUG: scheduling while atomic: udevd/0x10000001/4457 [] __sched_text_start+0x56/0x965 [] irq_exit+0x37/0x42 [] smp_apic_timer_interrupt+0x70/0x79 [] apic_timer_interrupt+0x28/0x30 [] __cond_resched+0x12/0x2c [] cond_resched+0x26/0x31 [] unmap_vmas+0x3d3/0x4df [] exit_mmap+0x7e/0x10a [] mmput+0x1d/0x78 [] do_exit+0x1b2/0x6d8 [] sys_vm86+0x99/0x21d [] die+0x1f7/0x21c [] do_page_fault+0x442/0x510 [] do_page_fault+0x0/0x510 [] error_code+0x7c/0x84 [] module_put+0x20/0x52 [] sysfs_release+0x2d/0x4c [] __fput+0x96/0x13c [] filp_close+0x51/0x58 [] sys_close+0x70/0xa7 [] sysenter_past_esp+0x5f/0x85 [] __sched_text_start+0x6b3/0x965 ======================= ___________________________________________________________ All New Yahoo! Mail – Tired of unwanted email come-ons? Let our SpamGuard protect you. http://uk.docs.yahoo.com/nowyoucan.html