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[Bug 986831] Re: system freezes for some seconds: Attempted to yield the CPU while in atomic or interrupt context

 

John Murray, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report would delay your problem being
addressed as quickly as possible.

No need exists to comment here at this time. After reading the above
documentation in it's entirety, if you have further questions, you are
welcome to redirect them to the appropriate mailing list or forum via
http://www.ubuntu.com/support/community/mailinglists , or you may
contact me directly.

Thank you for your understanding.

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https://bugs.launchpad.net/bugs/986831

Title:
  system freezes for some seconds: Attempted to yield the CPU while in
  atomic or interrupt context

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  After the first freeze, dmesg showed:

  ...
  [194346.116070] NVRM: Xid (0000:01:00): 8, Channel 00000002
  [194348.116026] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
  [194350.117812] NVRM: Xid (0000:01:00): 9, Channel 00000020 Instance 00000000 Intr 00000080

  
  After the second freeze, dmesg showed:

  ...
  [194346.116070] NVRM: Xid (0000:01:00): 8, Channel 00000002
  [194348.116026] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
  [194350.117812] NVRM: Xid (0000:01:00): 9, Channel 00000020 Instance 00000000 Intr 00000080
  [194514.140070] NVRM: Xid (0000:01:00): 8, Channel 00000002
  [194516.140030] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
  [194518.141391] sched: RT throttling activated

  michael@quad:~$ cat /proc/version_signature
  Ubuntu 3.2.0-23.36-generic-pae 3.2.14

  michael@quad:~$ lsb_release -rd
  Description:	Ubuntu 12.04 LTS
  Release:	12.04

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-23-generic-pae 3.2.0-23.36
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic-pae 3.2.14
  Uname: Linux 3.2.0-23-generic-pae i686
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu5
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  michael    9506 F.... pulseaudio
   /dev/snd/controlC0:  michael    9506 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf6ff8000 irq 44'
     Mixer name	: 'Realtek ALC883'
     Components	: 'HDA:10ec0883,1043829f,00100002'
     Controls      : 46
     Simple ctrls  : 22
  Card1.Amixer.info:
   Card hw:1 'UA101'/'EDIROL UA-101 (serial ZT82634), 192000 Hz at usb-0000:00:1a.7-3, high speed'
     Mixer name	: ''
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'MIDI Input Mode',0
     Capabilities: enum
     Items: 'High Load' 'Light Load'
     Item0: 'Light Load'
  Card2.Amixer.info:
   Card hw:2 'CX8811'/'Conexant CX8811 at 0xfb000000'
     Mixer name	: 'CX88'
     Components	: ''
     Controls      : 3
     Simple ctrls  : 2
  Date: Sun Apr 22 13:55:17 2012
  HibernationDevice: RESUME=UUID=dd8becab-8d85-4a0f-9840-3cd90d202035
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  MachineType: System manufacturer P5K
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: root=UUID=4f6e10b1-9995-4249-a5e5-a9b20b72cace ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-23-generic-pae N/A
   linux-backports-modules-3.2.0-23-generic-pae  N/A
   linux-firmware                                1.79
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: Upgraded to precise on 2012-04-18 (3 days ago)
  dmi.bios.date: 10/14/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1201
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5K
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1201:bd10/14/2008:svnSystemmanufacturer:pnP5K:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5K:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: P5K
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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