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[Launchpad Bug Tracker <1176061@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/1176061

Title:
  Random system freezes

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  Occasionally the system randomly slows to a crawl within a matter of
  seconds, and then freezes. It no longer responds to mouse or keyboard
  input. I had upgraded from Ubuntu 12.10 to 13.04 about 5 hours before
  first filing this bug, and the freeze happened at least 3 times.

  When the issue occurred the first times, the only running software was
  one or more web browsers (e.g. Google Chrome and/or Firefox). On one
  occasion the system froze just after launching LibreOffice Writer.

  There’s something that may be a consequence of the issue or related in
  some way. After one of the freezes, when booting the GRUB console was
  displayed before Ubuntu is started, and I had to press ENTER to launch
  the default and only operating system image (Ubuntu).

  The freeze seem to happen more frequently when a new application is
  launched (e.g. LibreOffice Writer, the Eye of GNOME image viewer,
  Firefox) while Google Chrome is running, or when a new Chrome tab is
  opened. There seems to be a greater correlation of freezes when Eye of
  GNOME is launched.

  I experienced similar freezes on the same hardware with Ubuntu 12.10
  but much less frequently, once every several days instead of once
  every few hours with Ubuntu 13.04.

  My PC has an Intel Core i5 CPU 760 @ 2.80GHz × 4 with 8GB of RAM, a
  450GB hard disk, and an Nvidia Quadro 400 graphics card. I'm running
  64 bit Ubuntu 13.04 with the Nouveau drivers, freshly updated from
  12.10.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-19-generic 3.8.0-19.30
  ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
  Uname: Linux 3.8.0-19-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  paolo      2182 F.... pulseaudio
   /dev/snd/controlC0:  paolo      2182 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  CurrentDmesg: [   13.847176] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
  Date: Fri May  3 17:15:27 2013
  HibernationDevice: RESUME=UUID=bf3a6625-a77d-4873-8881-486211c8bef1
  InstallationDate: Installed on 2013-02-16 (76 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  IwConfig:
   eth0      no wireless extensions.

   lo        no wireless extensions.
  MachineType: System manufacturer System Product Name
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=it_IT.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=e97b7152-ea93-487a-a54b-c54346a2f645 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-19-generic N/A
   linux-backports-modules-3.8.0-19-generic  N/A
   linux-firmware                            1.106
  RfKill:

  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-05-03 (0 days ago)
  dmi.bios.date: 07/09/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0903
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P7P55-M
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0903:bd07/09/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7P55-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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