Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751417AbWHRQpZ (ORCPT ); Fri, 18 Aug 2006 12:45:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751420AbWHRQpZ (ORCPT ); Fri, 18 Aug 2006 12:45:25 -0400 Received: from nf-out-0910.google.com ([64.233.182.185]:64351 "EHLO nf-out-0910.google.com") by vger.kernel.org with ESMTP id S1751417AbWHRQpW (ORCPT ); Fri, 18 Aug 2006 12:45:22 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:date:from:to:cc:subject:message-id:references:mime-version:content-type:content-disposition:in-reply-to:user-agent:sender; b=YYyNpL+iyLOIt6u5TvwLm7GXMlhosHqVEJWWlA+z/qnrxdBZAp+7gRd/nuH5x559rvvL4c4ULwlL7dBkgd/yLRaTNGYashN7hgHgUsNpISAu2Skjo2AXlTB/TfeUSbsZFQI5v7uOM1Z1/DblkV99XKKlGNvzQKL2XtoYrZJ68Rs= Date: Fri, 18 Aug 2006 18:45:08 +0000 From: Frederik Deweerdt To: Andrew Morton Cc: linux-kernel@vger.kernel.org, airlied@linux.ie, Jaroslav Kysela , Takashi Iwai Subject: Re: oops while loading snd-seq-oss (was: Re: 2.6.18-rc4-mm1 BUG, drm related) Message-ID: <20060818184508.GB720@slug> References: <20060813012454.f1d52189.akpm@osdl.org> <20060815130345.GA3817@slug> <20060815071632.b10d3a03.akpm@osdl.org> <20060815173726.GA2533@slug> <20060815092146.f8a6942a.akpm@osdl.org> <20060818111118.GB1586@slug> <20060818085220.2f679f9c.akpm@osdl.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060818085220.2f679f9c.akpm@osdl.org> User-Agent: mutt-ng/devel-r804 (Linux) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4553 Lines: 72 On Fri, Aug 18, 2006 at 08:52:20AM -0700, Andrew Morton wrote: > On Fri, 18 Aug 2006 11:11:18 +0000 > Frederik Deweerdt wrote: > > > > CONFIG_DEBUG_PAGEALLOC might tell us more. > > I've tried enabling it, at it appears that we catch an earlier error: > > [ 34.988000] [drm:drm_unlock] *ERROR* Process 8826 using kernel context 0 > > [ 35.644000] BUG: unable to handle kernel paging request at virtual address 00716573 > > [ 35.644000] printing eip: > > [ 35.644000] c01aeacb > > [ 35.644000] *pde = 00000000 > > [ 35.644000] Oops: 0000 [#1] > > [ 35.644000] PREEMPT DEBUG_PAGEALLOC > > [ 35.644000] last sysfs file: /devices/pci0000:00/0000:00:1d.7/usb5/5-0:1.0/bInterfaceProtocol > > [ 35.644000] Modules linked in: snd_seq snd_seq_device ohci_hcd parport_pc parport pcspkr ipw2200 yenta_socket rsrc_nonstatic pcmcia_core snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd soundcore snd_page_alloc ehci_hcd uhci_hcd usbcore cpufreq_stats cpufreq_powersave cpufreq_ondemand cpufreq_conservative speedstep_centrino freq_table processor ac battery i915 drm tg3 joydev tsdev > > [ 35.644000] CPU: 0 > > [ 35.644000] EIP: 0060:[] Not tainted VLI > > [ 35.644000] EFLAGS: 00210246 (2.6.18-rc4-def01 #18) > > [ 35.644000] EIP is at sysfs_dirent_exist+0x4b/0x70 > > [ 35.644000] eax: 00716573 ebx: f36f263c ecx: f71962a0 edx: f36f263c > > [ 35.644000] esi: 00716573 edi: c03b4177 ebp: f711fe90 esp: f711fe7c > > [ 35.644000] ds: 007b es: 007b ss: 0068 > > [ 35.644000] Process modprobe (pid: 8864, ti=f711e000 task=c193b540 task.ti=f711e000) > > [ 35.644000] Stack: f36f263c f36f26a0 f36bf120 c03b4177 ffffffef f711feb0 c01afb95 f36f2694 > > [ 35.644000] c03b4177 f7ba4108 00000000 f7ba4000 f7ba4108 f711fed8 c027ece1 f7ba4108 > > [ 35.644000] f74b5d08 c03b4177 f7ba416c f7ba4000 f71962a0 f7ba4000 f7ba4108 f711ff08 > > [ 35.644000] Call Trace: > > [ 35.644000] [] sysfs_create_link+0x4d/0xa2 > > [ 35.644000] [] device_add_class_symlinks+0xb0/0x14d > > [ 35.644000] [] device_add+0x1a0/0x37e > > [ 35.644000] [] device_register+0x1a/0x20 > > [ 35.644000] [] device_create+0xaa/0xc4 > > [ 35.644000] [] snd_register_device+0xcf/0x104 [snd] > > [ 35.644000] [] snd_sequencer_device_init+0x4e/0x7c [snd_seq] > > [ 35.644000] [] alsa_seq_init+0x2f/0x51 [snd_seq] > > [ 35.644000] [] sys_init_module+0x163/0x221 > > [ 35.644000] [] sysenter_past_esp+0x56/0x8d > > [ 35.644000] [] 0xb7fcd410 > > [ 35.644000] [] show_stack_log_lvl+0x98/0xb2 > > [ 35.644000] [] show_registers+0x1b7/0x22f > > [ 35.644000] [] die+0x12a/0x232 > > [ 35.644000] [] do_page_fault+0x38c/0x616 > > [ 35.644000] [] error_code+0x39/0x40 > > [ 35.644000] [] sysfs_create_link+0x4d/0xa2 > > [ 35.644000] [] device_add_class_symlinks+0xb0/0x14d > > [ 35.644000] [] device_add+0x1a0/0x37e > > [ 35.644000] [] device_register+0x1a/0x20 > > [ 35.644000] [] device_create+0xaa/0xc4 > > [ 35.644000] [] snd_register_device+0xcf/0x104 [snd] > > [ 35.644000] [] snd_sequencer_device_init+0x4e/0x7c [snd_seq] > > [ 35.644000] [] alsa_seq_init+0x2f/0x51 [snd_seq] > > [ 35.644000] [] sys_init_module+0x163/0x221 > > [ 35.644000] [] sysenter_past_esp+0x56/0x8d > > [ 35.644000] Code: f0 eb 12 8b 53 04 8d 42 fc 89 c3 8b 40 04 0f 18 00 90 3b 55 f0 74 2f 8b 43 14 85 c0 74 e5 89 1c 24 e8 39 f0 ff ff 8b 7d 0c 89 c6 ae 75 08 84 c0 75 f8 31 c0 eb 04 19 c0 0c 01 85 c0 75 c4 b8 > > [ 35.644000] EIP: [] sysfs_dirent_exist+0x4b/0x70 SS:ESP 0068:f711fe7c > > [ 35.644000] > > It looks like %eax is in fact a sort of "seq" string, but I couldn't > > figure out why we ended with this pointer :( > > These sorts of crashes down in sysfs often are hard to diagnose. What did > the driver do to cause this? Dunno. But it continues to look like an ALSA > thing. > > If you had CONFIG_PCI_MULTITHREAD_PROBE enabled, please try disabling it. It wasn't set... Thanks, Frederik - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/