cx88[0]/2-mpeg Hardware DMA error causes glitches in MPEG2 stream

[Martin R]

Release Version 9.10 Karmic

The following errors occur within the kern.log ever few seconds;
"server kernel: [44077.869472] cx88[0]: irq mpeg [0x80000] pci_abort*
Dec 22 08:39:04 server kernel: [44077.869479] cx88[0]/2-mpeg: general errors: 0x00080000"

Each time these occur they cause a glitch, either in the sound or the video decoding of the mpeg stream from my HVR-4000 TV Decoder card. This occurs no matter what software I am using to view the stream.

I have tried switching PCI slots but that does not help. There is an entry in the logs stating that the firmware is loaded ok.

[Brian Murray (brian-murray)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage. I have classified this bug as a bug in linux.

When reporting bugs in the future please use apport, either via the appropriate application's "Help -> Report a Problem" menu or using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Brian Murray (brian-murray)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:

apport-collect 499375

This will help us to find and resolve the problem. Bear in mind that you may need to install the python-launchpadlib package from the universe repository. Additionally, when prompted to give apport-collect permissions for Launchpad you will need to give it at least the ability to "Change Non-Private" data as it will be adding information to your bug report. Thanks in advance!

[Martin R (martin-teamrichmond)]

Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/dsp1', '/dev/dsp', '/dev/snd/seq', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0p', '/dev/snd/pcmC0D1p', '/dev/snd/controlC0', '/dev/snd/pcmC0D0c', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/pcmC1D0c', '/dev/snd/timer', '/dev/sequencer2', '/dev/sequencer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfdfdc000 irq 16'
   Mixer name : 'SigmaTel STAC9227'
   Components : 'HDA:83847618,10280215,00100201'
   Controls : 38
   Simple ctrls : 25
Card1.Amixer.info:
 Card hw:1 'CX8811'/'Conexant CX8811 at 0xf6000000'
   Mixer name : 'CX88'
   Components : ''
   Controls : 3
   Simple ctrls : 2
CheckboxSubmission: eb036762d86bb17e59737c87d0816d36
CheckboxSystem: 2a6f54df59af338184485e85cbcf0d32
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=fe57ef9f-28e3-4bd2-9eba-4d56287fcafd
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
MachineType: Dell Inc. Dell XPS420
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcCmdLine: root=/dev/mapper/isw_dijejihjeg_SYSTEM5 ro quiet splash
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_GB.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-16.53-generic
RelatedPackageVersions:
 linux-backports-modules-2.6.31-16-generic N/A
 linux-firmware 1.25
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
Uname: Linux 2.6.31-16-generic x86_64
UserGroups: adm admin cdrom dialout libvirtd lpadmin mythtv plugdev sambashare
dmi.bios.date: 01/02/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A03
dmi.board.name: 0TP406
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 7
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA03:bd01/02/2008:svnDellInc.:pnDellXPS420:pvr:rvnDellInc.:rn0TP406:rvr:cvnDellInc.:ct7:cvr:
dmi.product.name: Dell XPS420
dmi.sys.vendor: Dell Inc.

[Martin R (martin-teamrichmond)]

Is there anything else I need to provide?

[Jeremy Foshee (jeremyfoshee)]

Hi Martin,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 499375

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

    [This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Martin R (martin-teamrichmond)]

Architecture: i386
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfdfdc000 irq 16'
   Mixer name : 'SigmaTel STAC9227'
   Components : 'HDA:83847618,10280215,00100201'
   Controls : 37
   Simple ctrls : 24
Card1.Amixer.info:
 Card hw:1 'CX8811'/'Conexant CX8811 at 0xf6000000'
   Mixer name : 'CX88'
   Components : ''
   Controls : 3
   Simple ctrls : 2
Card2.Amixer.info:
 Card hw:2 'Namtai'/'Sony corporation EyeToy USB camera Namtai at usb-0000:00:1d.7-6.4, full speed'
   Mixer name : 'USB Mixer'
   Components : 'USB054c:0155'
   Controls : 0
   Simple ctrls : 0
Card2.Amixer.values:

DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=9037937a-bebb-40ae-a77d-184c456b08e1
InstallationMedia: Mythbuntu 9.10 "Karmic Koala" - Release i386 (20091028.4)
MachineType: Dell Inc. Dell XPS420
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.31-20-generic-pae root=UUID=aece8e7d-ce4d-4690-88c7-f883a6696a03 ro quiet splash
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_GB.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-20.58-generic-pae
RelatedPackageVersions:
 linux-backports-modules-2.6.31-20-generic-pae N/A
 linux-firmware 1.26
RfKill:
 0: hci0: Bluetooth
  Soft blocked: no
  Hard blocked: no
Uname: Linux 2.6.31-20-generic-pae i686
UserGroups: adm admin cdrom dialout libvirtd lpadmin mythtv plugdev sambashare video www-data
dmi.bios.date: 01/02/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A03
dmi.board.name: 0TP406
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 7
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA03:bd01/02/2008:svnDellInc.:pnDellXPS420:pvr:rvnDellInc.:rn0TP406:rvr:cvnDellInc.:ct7:cvr:
dmi.product.name: Dell XPS420
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug.

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