usb audio related bug

[Valery Frolov]

Jun 23 00:40:03 lxf kernel: [ 2949.825841] retire_playback_urb: 827 callbacks suppressed
Jun 23 00:40:08 lxf kernel: [ 2954.834314] retire_playback_urb: 827 callbacks suppressed
Jun 23 00:40:13 lxf kernel: [ 2959.842780] retire_playback_urb: 827 callbacks suppressed
Jun 23 00:40:18 lxf kernel: [ 2964.851254] retire_playback_urb: 827 callbacks suppressed
......... permanently

when I unplugged my usb audio device, the messages stopped:

Jun 23 00:44:34 lxf kernel: [ 3220.281248] retire_playback_urb: 827 callbacks suppressed
Jun 23 00:44:37 lxf pulseaudio[2516]: [alsa-sink-USB Audio] alsa-util.c: Got POLLNVAL from ALSA
Jun 23 00:44:37 lxf pulseaudio[2516]: [alsa-sink-USB Audio] alsa-util.c: Could not recover from POLLERR|POLLNVAL|POLLHUP with snd_pcm_prepare(): Нет такого устройства
Jun 23 00:44:37 lxf kernel: [ 3223.249863] usb 2-1.2: USB disconnect, device number 4

[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 1333002

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.

[Boyan Sotirov (lz1dsb)]

I think I'm affected by a similar issue. In my case i use USB audio speakers. Each time I select them as an output device - yes they work, but constantly the following messages are logged:
Jul 9 14:42:04 NUC-desktop kernel: [ 3413.003020] retire_playback_urb: 820 callbacks suppressed
Jul 9 14:42:09 NUC-desktop kernel: [ 3418.018277] retire_playback_urb: 827 callbacks suppressed
Jul 9 14:42:14 NUC-desktop kernel: [ 3423.033500] retire_playback_urb: 827 callbacks suppressed
Jul 9 14:42:19 NUC-desktop kernel: [ 3428.048798] retire_playback_urb: 827 callbacks suppressed
Jul 9 14:42:24 NUC-desktop kernel: [ 3433.064025] retire_playback_urb: 827 callbacks suppressed

Should it be like that? What's the meaning of the these log messages?

[Greg Tippitt (gtippitt)]

I am having this same error when using a Zalman ZM-RSSC External USB 5.1 Sound adapter. The machine is a fresh install of LUBUNTU 14.04. Before upgrading my HTPC, I was using this same sound adapter with another PC running LUBUNTU 12.04 and did not get this error. I get this error logged whenever any application is outputing sound. I primarily use the PulseAudio interface from VLC and stream video from NetFlix using the Pipelight facility with Firefox. (Super praise and thanks for everyone that worked on getting NetFlix working so great with Ubuntu.)

I did not originaly report this bug. I'll try posting the "apport-collect 1333002" output that was requested and has not been provided yet. While sound continues to work despite this error being logged, these repeated errors accumulate and make logs difficult to use.

My deepest thanks to all involved in Ubuntu development and maintenance,
Greg Tippitt

[Greg Tippitt (gtippitt)]

ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: gtippitt 1847 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
CurrentDesktop: LXDE
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=b78c58f2-95b7-ee49-0386-8a57c3c766e2
InstallationDate: Installed on 2014-06-29 (13 days ago)
InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
IwConfig:
 eth0 no wireless extensions.

 eth1 no wireless extensions.

 lo no wireless extensions.
MachineType: Supermicro H8DCE
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-30-generic root=UUID=4c7df539-896e-4e45-ac05-d3e39a3d4e05 ro nomdmonddf nomdmonisw
ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-30-generic N/A
 linux-backports-modules-3.13.0-30-generic N/A
 linux-firmware 1.127.4
RfKill:

Tags: trusty
Uname: Linux 3.13.0-30-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm boinc cdrom dip lpadmin nopasswdlogin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 07/25/2006
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080012
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: H8DCE
dmi.board.vendor: Supermicro
dmi.board.version: 2.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080012:bd07/25/2006:svnSupermicro:pnH8DCE:pvr1234567890:rvnSupermicro:rnH8DCE:rvr2.0:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: H8DCE
dmi.product.version: 1234567890
dmi.sys.vendor: Supermicro

[Greg Tippitt (gtippitt)]

apport information

[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

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[Greg Tippitt (gtippitt)]

apport information