From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759775AbXLMQJV (ORCPT ); Thu, 13 Dec 2007 11:09:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755231AbXLMQJI (ORCPT ); Thu, 13 Dec 2007 11:09:08 -0500 Received: from mx2.suse.de ([195.135.220.15]:32937 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755010AbXLMQJH (ORCPT ); Thu, 13 Dec 2007 11:09:07 -0500 Date: Thu, 13 Dec 2007 15:58:59 +0100 Message-ID: From: Takashi Iwai To: Ingo Molnar Cc: Jaroslav Kysela , linux-kernel@vger.kernel.org Subject: Re: [bug?] ALSA sound/core/info.c:852: BUG? (root) In-Reply-To: <20071205200006.GA16083@elte.hu> References: <20071205200006.GA16083@elte.hu> User-Agent: Wanderlust/2.15.5 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.7 (=?ISO-8859-4?Q?Sanj=F2?=) APEL/10.6 MULE XEmacs/21.5 (beta28) (fuki) (+CVS-20070806) (i386-suse-linux) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org At Wed, 5 Dec 2007 21:00:07 +0100, Ingo Molnar wrote: > > > hi, > > is this boot warning anything to worry about: > > [ 0.000000] ALSA sound/core/info.c:852: BUG? (root) > > x86 64-bit config (randconfig generated) attached. fuller dmesg below. > (let me know if you need more info) This should be harmless, but I feel a bit uneasy with it. Could you check whether snd_proc_root is NULL or entry->parent->p is NULL in snd_info_disconnect()? thanks, Takashi > > Ingo > > ----------------> > [ 0.000000] Calling initcall 0xffffffff80d20eca: gmidi_init+0x0/0x12() > [ 0.000000] dummy_udc dummy_udc: binding gadget driver 'g_midi' > [ 0.000000] g_midi gadget: MIDI Gadget, version: 25 Jul 2006 > [ 0.000000] g_midi gadget: using dummy_udc, OUT ep-b IN ep-a > [ 0.000000] ALSA sound/core/rawmidi.c:1524: unable to register rawmidi device 0:0 > [ 0.000000] g_midi gadget: snd_card_register failed > [ 0.000000] ALSA sound/core/info.c:852: BUG? (root) > [ 0.000000] Pid: 1, comm: swapper Not tainted 2.6.24-rc4-cfs-v24 #126 > [ 0.000000] > [ 0.000000] Call Trace: > [ 0.000000] [] snd_info_disconnect+0xad/0xc8 > [ 0.000000] [] snd_info_card_disconnect+0x7b/0x8c > [ 0.000000] [] snd_card_disconnect+0x108/0x113 > [ 0.000000] [] snd_card_free_prepare+0x1b/0x5a > [ 0.000000] [] snd_card_free+0x17/0xa7 > [ 0.000000] [] snd_card_register+0x4e/0x2e5 > [ 0.000000] [] snd_rawmidi_new+0x192/0x1b8 > [ 0.000000] [] gmidi_bind+0x49e/0x4f3 > [ 0.000000] [] usb_gadget_register_driver+0x1b0/0x280 > [ 0.000000] [] gmidi_init+0x10/0x12 > [ 0.000000] [] kernel_init+0xd9/0x24c > [ 0.000000] [] _spin_unlock_irq+0x26/0x2c > [ 0.000000] [] finish_task_switch+0x57/0xbd > [ 0.000000] [] child_rip+0xa/0x12 > [ 0.000000] [] kernel_init+0x0/0x24c > [ 0.000000] [] child_rip+0x0/0x12 > [ 0.000000] > [ 0.000000] ALSA sound/core/info.c:852: BUG? (root) > [ 0.000000] Pid: 1, comm: swapper Not tainted 2.6.24-rc4-cfs-v24 #126 > [ 0.000000] > [ 0.000000] Call Trace: > [ 0.000000] [] snd_info_disconnect+0xad/0xc8 > [ 0.000000] [] snd_info_free_entry+0x2e/0x5c > [ 0.000000] [] snd_info_card_free+0x4a/0x5c > [ 0.000000] [] snd_card_do_free+0xac/0xd8 > [ 0.000000] [] snd_card_free+0x97/0xa7 > [ 0.000000] [] snd_card_register+0x4e/0x2e5 > [ 0.000000] [] snd_rawmidi_new+0x192/0x1b8 > [ 0.000000] [] gmidi_bind+0x49e/0x4f3 > [ 0.000000] [] usb_gadget_register_driver+0x1b0/0x280 > [ 0.000000] [] gmidi_init+0x10/0x12 > [ 0.000000] [] kernel_init+0xd9/0x24c > [ 0.000000] [] _spin_unlock_irq+0x26/0x2c > [ 0.000000] [] finish_task_switch+0x57/0xbd > [ 0.000000] [] child_rip+0xa/0x12 > [ 0.000000] [] kernel_init+0x0/0x24c > [ 0.000000] [] child_rip+0x0/0x12 > [ 0.000000] > [ 0.000000] g_midi gadget: unbind > [ 0.000000] initcall 0xffffffff80d20eca: gmidi_init+0x0/0x12() returned -19. > [ 0.000000] initcall 0xffffffff80d20eca ran for 46 msecs: gmidi_init+0x0/0x12() > [ 0.000000] Calling initcall 0xffffffff80d20f74: i8042_init+0x0/0xb7() > [ 0.000000] bus platform: add driver i8042 > [ 0.000000] Registering platform device 'i8042'. Parent at platform