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[Richard_Jia <feng.richard@xxxxxxxxx>]

bugs still exist. is there any action on this bug ?

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https://bugs.launchpad.net/bugs/1301649

Title:
  BUG: unable to handle kernel paging request at ffffc90405e00ffc

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  After the screen has turned off, it cannot turn back on.

  ProblemType: KernelOops
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-20-generic 3.13.0-20.42
  ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7
  Uname: Linux 3.13.0-20-generic x86_64
  Annotation: Your system might become unstable now and might need to be restarted.
  ApportVersion: 2.14-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  martin     2322 F.... pulseaudio
   /dev/snd/controlC2:  martin     2322 F.... pulseaudio
   /dev/snd/controlC0:  martin     2322 F.... pulseaudio
   /dev/snd/pcmC0D0p:   martin     2322 F...m pulseaudio
  Date: Wed Apr  2 02:21:46 2014
  DuplicateSignature: BUG: unable to handle kernel paging request at location RIP: 0010:location  location radeon_ring_backup+0xc8/0x160 [radeon]
  Failure: oops
  HibernationDevice: RESUME=UUID=8f5dcdd7-3c87-4c21-b301-23177bc10e70
  InstallationDate: Installed on 2013-10-20 (164 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M.
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-20-generic.efi.signed root=UUID=239ff048-fed2-4133-9e9b-b88229f5adae ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions: kerneloops-daemon 0.12+git20090217-3ubuntu7
  RfKill:
   
  SourcePackage: linux
  Title: BUG: unable to handle kernel paging request at ffffc90405e00ffc
  UpgradeStatus: Upgraded to trusty on 2014-04-02 (0 days ago)
  dmi.bios.date: 08/21/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F18
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: Z77-D3H
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF18:bd08/21/2012:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ77-D3H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To be filled by O.E.M.
  dmi.product.version: To be filled by O.E.M.
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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