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[Launchpad Bug Tracker <852140@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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https://bugs.launchpad.net/bugs/852140

Title:
  timer interrupts count in /proc/interrupts is updated very slowly and
  is very small

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  There is the result of "cat /proc/interrupts|grep timer" on my Ubuntu
  11.04 machine:

  0: 63 0 0 0 IO-APIC-edge timer
  LOC: 59 44 27 10 Local timer interrupts

  As one can see timer interrupts count is suspiciously small and is
  updated very slowly - it takes more than 30 seconds (or even more) for
  the value to be incremented. Though this do not cause any work or
  performance issues, this oddity is very disturbing.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: linux-image-2.6.38-11-generic 2.6.38-11.48
  ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
  Uname: Linux 2.6.38-11-generic x86_64
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: VT1828S Analog [VT1828S Analog]
     Subdevices: 2/2
     Subdevice #0: subdevice #0
     Subdevice #1: subdevice #1
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  revan      2462 F.... pulseaudio
   /dev/snd/pcmC0D0p:   revan      2462 F...m pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf3ff8000 irq 46'
     Mixer name	: 'VIA VT1828S'
     Components	: 'HDA:11064441,104383cf,00100100'
     Controls      : 37
     Simple ctrls  : 22
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xf7cfc000 irq 17'
     Mixer name	: 'Nvidia GPU 12 HDMI/DP'
     Components	: 'HDA:10de0012,10de0101,00100100'
     Controls      : 16
     Simple ctrls  : 4
  Date: Fri Sep 16 22:35:48 2011
  HibernationDevice: RESUME=UUID=43c796b9-6f85-45e5-952f-d27b2d54143d
  InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
   
   vboxnet0  no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic root=UUID=1c4b72d4-91cb-4a55-be43-a7bcff5643b1 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-2.6.38-11-generic N/A
   linux-backports-modules-2.6.38-11-generic  N/A
   linux-firmware                             1.52
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: Upgraded to natty on 2011-04-30 (138 days ago)
  dmi.bios.date: 07/23/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1807
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P7P55D PRO
  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.:bvr1807:bd07/23/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7P55DPRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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