From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: [BUG] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x83/0x95 Date: Wed, 09 Mar 2011 17:09:10 +0100 Message-ID: References: <1299685189.15854.182.camel@gandalf.stny.rr.com> <20110309155309.GA30598@suse.de> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.suse.de (cantor.suse.de [195.135.220.2]) by alsa0.perex.cz (Postfix) with ESMTP id 83DD624422 for ; Wed, 9 Mar 2011 17:09:14 +0100 (CET) In-Reply-To: <20110309155309.GA30598@suse.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Greg KH Cc: Andrew Morton , alsa-devel@alsa-project.org, LKML , Steven Rostedt List-Id: alsa-devel@alsa-project.org At Wed, 9 Mar 2011 07:53:09 -0800, Greg KH wrote: > > On Wed, Mar 09, 2011 at 10:39:49AM -0500, Steven Rostedt wrote: > > Not sure who to send this to, but last night on v2.6.38-rc8 ktest > > triggered this warning: > > > > > > [ 32.062538] YM3812 and OPL-3 driver Copyright (C) by Hannu Savolainen, Rob Hooft 1993-1996 > > [ 32.071305] PM: Adding info for No Bus:timer > > [ 32.075864] PM: Adding info for platform:snd_dummy.0^M > > [ 32.081232] PM: Adding info for No Bus:card0 > > [ 32.085853] PM: Adding info for No Bus:pcmC0D0p > > [ 32.090650] PM: Adding info for No Bus:pcmC0D0c > > [ 32.095667] PM: Adding info for No Bus:dsp > > [ 32.099918] ------------[ cut here ]------------ > > [ 32.104531] WARNING: at /home/rostedt/work/autotest/nobackup/linux-test.git/fs/sysfs/dir.c:455 sysfs_add_one+0x83/0x95() > > [ 32.115379] Hardware name: > > [ 32.118859] sysfs: cannot create duplicate filename '/dev/char/14:4' > > Two modules wanted to create the same minor number, that's not good. > > 14:4 is the OSS /dev/audio node. Are they modules or built-in? > > [ 32.125197] Modules linked in: > > [ 32.128255] Pid: 1, comm: swapper Not tainted 2.6.38-rc8-test #1 > > [ 32.134247] Call Trace:^M > > [ 32.136693] [] ? warn_slowpath_common+0x7c/0x91 > > [ 32.142168] [] ? sysfs_add_one+0x83/0x95 > > [ 32.147036] [] ? sysfs_add_one+0x83/0x95 > > [ 32.151904] [] ? warn_slowpath_fmt+0x33/0x35 > > [ 32.157120] [] ? sysfs_add_one+0x83/0x95 > > [ 32.161989] [] ? sysfs_do_create_link+0xdf/0x181^M > > [ 32.167550] [] ? vsnprintf+0x22c/0x266 > > [ 32.172246] [] ? sysfs_create_link+0x17/0x1c > > [ 32.177462] [] ? device_add+0x183/0x573 > > [ 32.182245] [] ? device_pm_init+0x5d/0x61 > > [ 32.187200] [] ? device_register+0x17/0x1a > > [ 32.192243] [] ? device_create_vargs+0x77/0x98 > > [ 32.197631] [] ? device_create+0x2d/0x2f > > [ 32.202501] [] ? sound_insert_unit+0x1ba/0x1d5 > > [ 32.207891] [] ? register_sound_special_device+0x103/0x11c > > [ 32.214319] [] ? snd_register_oss_device+0x10a/0x169 > > [ 32.220229] [] ? register_oss_dsp+0x62/0xb5 > > Yup, sound subsystem... Yep ;) > > This was for a 386 build. I could give a .config and full dmesg if > > needed. > > I think the sound developers (now on CC: would probably like to see > that.) I guess it's a long-standing issue. The dead old OSS driver creates /dev/audio and /dev/dspW by itself without coping with sound_core module. Takashi From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757283Ab1CIQJQ (ORCPT ); Wed, 9 Mar 2011 11:09:16 -0500 Received: from cantor.suse.de ([195.135.220.2]:60071 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756843Ab1CIQJP (ORCPT ); Wed, 9 Mar 2011 11:09:15 -0500 Date: Wed, 09 Mar 2011 17:09:10 +0100 Message-ID: From: Takashi Iwai To: Greg KH Cc: Steven Rostedt , Jaroslav Kysela , LKML , Andrew Morton , alsa-devel@alsa-project.org Subject: Re: [BUG] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x83/0x95 In-Reply-To: <20110309155309.GA30598@suse.de> References: <1299685189.15854.182.camel@gandalf.stny.rr.com> <20110309155309.GA30598@suse.de> User-Agent: Wanderlust/2.15.6 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.7 Emacs/23.2 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) 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, 9 Mar 2011 07:53:09 -0800, Greg KH wrote: > > On Wed, Mar 09, 2011 at 10:39:49AM -0500, Steven Rostedt wrote: > > Not sure who to send this to, but last night on v2.6.38-rc8 ktest > > triggered this warning: > > > > > > [ 32.062538] YM3812 and OPL-3 driver Copyright (C) by Hannu Savolainen, Rob Hooft 1993-1996 > > [ 32.071305] PM: Adding info for No Bus:timer > > [ 32.075864] PM: Adding info for platform:snd_dummy.0^M > > [ 32.081232] PM: Adding info for No Bus:card0 > > [ 32.085853] PM: Adding info for No Bus:pcmC0D0p > > [ 32.090650] PM: Adding info for No Bus:pcmC0D0c > > [ 32.095667] PM: Adding info for No Bus:dsp > > [ 32.099918] ------------[ cut here ]------------ > > [ 32.104531] WARNING: at /home/rostedt/work/autotest/nobackup/linux-test.git/fs/sysfs/dir.c:455 sysfs_add_one+0x83/0x95() > > [ 32.115379] Hardware name: > > [ 32.118859] sysfs: cannot create duplicate filename '/dev/char/14:4' > > Two modules wanted to create the same minor number, that's not good. > > 14:4 is the OSS /dev/audio node. Are they modules or built-in? > > [ 32.125197] Modules linked in: > > [ 32.128255] Pid: 1, comm: swapper Not tainted 2.6.38-rc8-test #1 > > [ 32.134247] Call Trace:^M > > [ 32.136693] [] ? warn_slowpath_common+0x7c/0x91 > > [ 32.142168] [] ? sysfs_add_one+0x83/0x95 > > [ 32.147036] [] ? sysfs_add_one+0x83/0x95 > > [ 32.151904] [] ? warn_slowpath_fmt+0x33/0x35 > > [ 32.157120] [] ? sysfs_add_one+0x83/0x95 > > [ 32.161989] [] ? sysfs_do_create_link+0xdf/0x181^M > > [ 32.167550] [] ? vsnprintf+0x22c/0x266 > > [ 32.172246] [] ? sysfs_create_link+0x17/0x1c > > [ 32.177462] [] ? device_add+0x183/0x573 > > [ 32.182245] [] ? device_pm_init+0x5d/0x61 > > [ 32.187200] [] ? device_register+0x17/0x1a > > [ 32.192243] [] ? device_create_vargs+0x77/0x98 > > [ 32.197631] [] ? device_create+0x2d/0x2f > > [ 32.202501] [] ? sound_insert_unit+0x1ba/0x1d5 > > [ 32.207891] [] ? register_sound_special_device+0x103/0x11c > > [ 32.214319] [] ? snd_register_oss_device+0x10a/0x169 > > [ 32.220229] [] ? register_oss_dsp+0x62/0xb5 > > Yup, sound subsystem... Yep ;) > > This was for a 386 build. I could give a .config and full dmesg if > > needed. > > I think the sound developers (now on CC: would probably like to see > that.) I guess it's a long-standing issue. The dead old OSS driver creates /dev/audio and /dev/dspW by itself without coping with sound_core module. Takashi