CONFIG_SOUND_OSS_CORE_PRECLAIM kernel option prevents osspd from working

[Nikolay Pliashechnikov]

After starting the osspd service, it crashes with no output.

I tried to start osspd manually:
user@server-lx:/dev#sudo osspd -f
osspd: OSS Proxy v1.3.2 (C) 2008-2010 by Tejun Heo <email address hidden>
osspd: Creating dsp (14:3), adsp (14:12), mixer (14:0)

It doesn't create any devices and exits.

I have created devices manually and set 666 mode to it. Now osspd exits with this error:
user@server-lx:/dev#sudo osspd -f
osspd: OSS Proxy v1.3.2 (C) 2008-2010 by Tejun Heo <email address hidden>
osspd: Creating dsp (14:3), adsp (14:12), mixer (14:0)
fuse: fuse_remove_signal_handlers: unknown session

different logging levels don't get any other information.
cuse module is loaded.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Mathieu Comandon (strycore)]

I'm noticing this exact same bug on Utopic, it worked properly on Trusty

[Mathieu Comandon (strycore)]

After some reading, this bug seems to be present because the kernel is compiled with CONFIG_SOUND_OSS_CORE_PRECLAIM

$ grep CONFIG_SOUND_OSS_CORE_PRECLAIM /boot/config-$(uname -r)
CONFIG_SOUND_OSS_CORE_PRECLAIM=y

Source:
http://sourceforge.net/p/osspd<email address hidden>/
https://bugs.archlinux.org/task/20359
http://superuser.com/questions/491822/how-to-run-oss-dependent-application-dev-dsp

[Mathieu Comandon (strycore)]

Confirming that recompiling the kernel with CONFIG_SOUND_OSS_CORE_PRECLAIM disabled fixes this bug.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1366794

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Mathieu Comandon (strycore)]

ApportVersion: 2.14.7-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: strider 6141 F.... pulseaudio
 /dev/snd/controlC0: strider 6141 F.... pulseaudio
CurrentDesktop: Unity
CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
DistroRelease: Ubuntu 14.10
InstallationDate: Installed on 2014-02-13 (243 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Gigabyte Technology Co., Ltd. EP45-UD3R
NonfreeKernelModules: nvidia
Package: osspd 1.3.2-6
PackageArchitecture: amd64
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-22-generic root=UUID=7b1e0236-a11a-41b1-a6ed-03209c9c697a ro quiet splash nomodeset noresume iommu=noaperture clocksource=hpet
ProcVersionSignature: Ubuntu 3.16.0-22.29-generic 3.16.4
RfKill:

Tags: utopic utopic
Uname: Linux 3.16.0-22-generic x86_64
UpgradeStatus: Upgraded to utopic on 2014-09-28 (16 days ago)
UserGroups: libvirtd sudo
WifiSyslog:

_MarkForUpload: True
dmi.bios.date: 01/25/2010
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F12
dmi.board.name: EP45-UD3R
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF12:bd01/25/2010:svnGigabyteTechnologyCo.,Ltd.:pnEP45-UD3R:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnEP45-UD3R:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: EP45-UD3R
dmi.sys.vendor: Gigabyte Technology Co., Ltd.

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Mathieu Comandon (strycore)]

apport information

[Rob Fargher (fargher-gmail)]

In /var/log/syslog,

Oct 24 15:05:07 hyla osspd: OSS Proxy v1.3.2 (C) 2008-2010 by Tejun Heo <email address hidden>
Oct 24 15:05:07 hyla osspd: Creating dsp (14:3), adsp (14:12), mixer (14:0)
Oct 24 15:05:07 hyla kernel: [ 227.591742] CUSE: failed to register chrdev region
Oct 24 15:05:07 hyla kernel: [ 227.591878] CUSE: failed to register chrdev region
Oct 24 15:05:07 hyla kernel: [ 227.591928] CUSE: failed to register chrdev region

This is a regression from Trusty.

[Joseph Salisbury (jsalisbury)]

I built a Utopic test kernel with CONFIG_SOUND_OSS_CORE_PRECLAIM disabled.

The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1366794/

Can you test this kernel and see if it resolves this bug?

[Rob Fargher (fargher-gmail)]

On 2014-10-29 01:17 PM, Joseph Salisbury wrote:
> I built a Utopic test kernel with CONFIG_SOUND_OSS_CORE_PRECLAIM
> disabled.
>
> The test kernel can be downloaded from:
> http://kernel.ubuntu.com/~jsalisbury/lp1366794/
>
> Can you test this kernel and see if it resolves this bug?

   Thank you for this. Yes, it does: osspd runs now and provides /dev/dsp.

--
Cheers,
Rob Fargher

[Mathieu Comandon (strycore)]

I also confirm that this kernel fixes this bug, sound ok in OSS applications

[Joseph Salisbury (jsalisbury)]

Thanks for testing the test kernel. This issue was fixed in bug 1385510 . I'll mark this bug as a duplicate.