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[Launchpad Bug Tracker <1486997@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/1486997

Title:
  Copying a large file causes user interface to stop responding

Status in linux package in Ubuntu:
  Expired

Bug description:
  Any heavy and prolonged disc activity causes the UI, mouse, and
  terminal to stop responding. For example, copying several GB of data
  via `cp file1 file1-copy`. When the copy completes, or if it's
  interrupted, the user interface responds normally. The problem occurs
  even when there's several GB of memory to spare. Other kernel
  schedulers don't change anything.

  WORKAROUND: Disable swap.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-45-generic 3.16.0-45.60~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-45.60~14.04.1-generic 3.16.7-ckt14
  Uname: Linux 3.16.0-45-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.12
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Thu Aug 20 12:21:59 2015
  InstallationDate: Installed on 2015-07-13 (37 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)
  ---
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC0D0p:   phill      2715 F...m pulseaudio
   /dev/snd/controlC0:  phill      2715 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=fab564c9-5c8a-439f-8b9d-a10c8a4b75ad
  InstallationDate: Installed on 2015-07-13 (165 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: System manufacturer V-P5G45
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-56-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-56.75~14.04.1-generic 3.16.7-ckt20
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-56-generic N/A
   linux-backports-modules-3.16.0-56-generic  N/A
   linux-firmware                             1.127.19
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  Tags:  trusty
  Uname: Linux 3.16.0-56-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 05/18/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0405
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: V-P5G45
  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.:bvr0405:bd05/18/2009:svnSystemmanufacturer:pnV-P5G45:pvrSystemVersion:rvnASUSTeKComputerINC.:rnV-P5G45:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: V-P5G45
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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