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[Bug 761352] Re: WARNING: at /build/buildd/linux-2.6.38/net/sched/sch_generic.c:256 dev_watchdog+0x213/0x220()

 

Dan Kegel, 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? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

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

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc3

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** Tags added: latest-bios-208

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/761352

Title:
  WARNING: at /build/buildd/linux-2.6.38/net/sched/sch_generic.c:256
  dev_watchdog+0x213/0x220()

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Happened right when I ran this script the first time:

  #!/bin/sh
  speaker-test &
  pid1=$$
  MONITOR=$(pactl list | grep -A2 '^Source #' | \
      grep 'Name: .*\.monitor$' | awk '{print $NF}' | tail -n1)
  parec -d "$MONITOR" | sox -t raw -r 44100 -sLb 16 -c 2 - foo.wav &
  pid2=$$
  sleep 3
  kill $pid1
  kill $pid2

  ProblemType: KernelOops
  DistroRelease: Ubuntu 11.04
  Package: linux-image-2.6.38-8-generic 2.6.38-8.42
  Regression: Yes
  Reproducible: No
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic i686
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
  Annotation: Your system might become unstable now and might need to be restarted.
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC663 Analog [ALC663 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  dank       1423 F.... pulseaudio
   /dev/snd/pcmC0D0p:   dank       1423 F...m pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf4900000 irq 43'
     Mixer name	: 'Realtek ALC663'
     Components	: 'HDA:10ec0663,10431333,00100001'
     Controls      : 14
     Simple ctrls  : 7
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xf3080000 irq 17'
     Mixer name	: 'Nvidia GPU 0d HDMI/DP'
     Components	: 'HDA:10de000d,10de0101,00100100'
     Controls      : 16
     Simple ctrls  : 4
  Date: Thu Apr 14 16:12:36 2011
  Failure: oops
  Frequency: This has only happened once.
  HibernationDevice: RESUME=UUID=05ea01a8-bff2-444c-8e54-248ce5285ef0
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110329.1)
  Lsusb:
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 003: ID 04f2:b071 Chicony Electronics Co., Ltd 2.0M UVC Webcam / CNF7129
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK Computer Inc. G60JX
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=0941b44a-a9ad-4f5d-a22a-745943f4c4bd ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-2.6.38-8-generic N/A
   linux-backports-modules-2.6.38-8-generic  N/A
   linux-firmware                            1.50
  RfKill:
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  Title: WARNING: at /build/buildd/linux-2.6.38/net/sched/sch_generic.c:256 dev_watchdog+0x213/0x220()
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/16/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 208
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: G60JX
  dmi.board.vendor: PEGATRON CORPORATION
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: PEGATRON Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr208:bd08/16/2010:svnASUSTeKComputerInc.:pnG60JX:pvr1.0:rvnPEGATRONCORPORATION:rnG60JX:rvr1.0:cvnPEGATRONComputerInc.:ct10:cvr1.0:
  dmi.product.name: G60JX
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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