From: Takashi Iwai <tiwai@suse.de>
To: Greg KH <gregkh@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
alsa-devel@alsa-project.org, LKML <linux-kernel@vger.kernel.org>,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [BUG] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x83/0x95
Date: Wed, 09 Mar 2011 17:09:10 +0100 [thread overview]
Message-ID: <s5hipvsnumx.wl%tiwai@suse.de> (raw)
In-Reply-To: <20110309155309.GA30598@suse.de>
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] [<c044d095>] ? warn_slowpath_common+0x7c/0x91
> > [ 32.142168] [<c0552d35>] ? sysfs_add_one+0x83/0x95
> > [ 32.147036] [<c0552d35>] ? sysfs_add_one+0x83/0x95
> > [ 32.151904] [<c044d135>] ? warn_slowpath_fmt+0x33/0x35
> > [ 32.157120] [<c0552d35>] ? sysfs_add_one+0x83/0x95
> > [ 32.161989] [<c055393d>] ? sysfs_do_create_link+0xdf/0x181^M
> > [ 32.167550] [<c073637f>] ? vsnprintf+0x22c/0x266
> > [ 32.172246] [<c0553a0f>] ? sysfs_create_link+0x17/0x1c
> > [ 32.177462] [<c0950ce4>] ? device_add+0x183/0x573
> > [ 32.182245] [<c0958474>] ? device_pm_init+0x5d/0x61
> > [ 32.187200] [<c09510eb>] ? device_register+0x17/0x1a
> > [ 32.192243] [<c0951165>] ? device_create_vargs+0x77/0x98
> > [ 32.197631] [<c09511b3>] ? device_create+0x2d/0x2f
> > [ 32.202501] [<c0dc5caa>] ? sound_insert_unit+0x1ba/0x1d5
> > [ 32.207891] [<c0dc5e8e>] ? register_sound_special_device+0x103/0x11c
> > [ 32.214319] [<c0dd7875>] ? snd_register_oss_device+0x10a/0x169
> > [ 32.220229] [<c0de6cd6>] ? 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
WARNING: multiple messages have this Message-ID (diff)
From: Takashi Iwai <tiwai@suse.de>
To: Greg KH <gregkh@suse.de>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Jaroslav Kysela <perex@perex.cz>,
LKML <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
alsa-devel@alsa-project.org
Subject: Re: [BUG] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x83/0x95
Date: Wed, 09 Mar 2011 17:09:10 +0100 [thread overview]
Message-ID: <s5hipvsnumx.wl%tiwai@suse.de> (raw)
In-Reply-To: <20110309155309.GA30598@suse.de>
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] [<c044d095>] ? warn_slowpath_common+0x7c/0x91
> > [ 32.142168] [<c0552d35>] ? sysfs_add_one+0x83/0x95
> > [ 32.147036] [<c0552d35>] ? sysfs_add_one+0x83/0x95
> > [ 32.151904] [<c044d135>] ? warn_slowpath_fmt+0x33/0x35
> > [ 32.157120] [<c0552d35>] ? sysfs_add_one+0x83/0x95
> > [ 32.161989] [<c055393d>] ? sysfs_do_create_link+0xdf/0x181^M
> > [ 32.167550] [<c073637f>] ? vsnprintf+0x22c/0x266
> > [ 32.172246] [<c0553a0f>] ? sysfs_create_link+0x17/0x1c
> > [ 32.177462] [<c0950ce4>] ? device_add+0x183/0x573
> > [ 32.182245] [<c0958474>] ? device_pm_init+0x5d/0x61
> > [ 32.187200] [<c09510eb>] ? device_register+0x17/0x1a
> > [ 32.192243] [<c0951165>] ? device_create_vargs+0x77/0x98
> > [ 32.197631] [<c09511b3>] ? device_create+0x2d/0x2f
> > [ 32.202501] [<c0dc5caa>] ? sound_insert_unit+0x1ba/0x1d5
> > [ 32.207891] [<c0dc5e8e>] ? register_sound_special_device+0x103/0x11c
> > [ 32.214319] [<c0dd7875>] ? snd_register_oss_device+0x10a/0x169
> > [ 32.220229] [<c0de6cd6>] ? 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
next prev parent reply other threads:[~2011-03-09 16:09 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-09 15:39 [BUG] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one+0x83/0x95 Steven Rostedt
2011-03-09 15:53 ` Greg KH
2011-03-09 15:53 ` Greg KH
2011-03-09 16:09 ` Takashi Iwai [this message]
2011-03-09 16:09 ` Takashi Iwai
2011-03-09 16:20 ` Steven Rostedt
2011-03-09 16:38 ` Takashi Iwai
2011-03-09 16:38 ` Takashi Iwai
2011-03-09 16:44 ` Steven Rostedt
2011-03-09 17:21 ` Steven Rostedt
2011-03-09 19:12 ` Takashi Iwai
2011-03-09 19:12 ` Takashi Iwai
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