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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

Did this issue occur in a previous version of Ubuntu, or is this a new
issue?

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.12 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.12-saucy/


** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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

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https://bugs.launchpad.net/bugs/1247906

Title:
  Repeatable oops qxl_enc_commit

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I've got an Ubuntu Trusty guest running under a Fedora 20-pre-beta,
  the guest oops reliably.

  To repeat:
      Setup KVM with the guest configured with QXL graphics, 
      Install openssh-server in the guest

     Boot it and then send a ctrl-alt-f1
     Problem 1 : Corrupt graphics instead of console

     Now ssh into the guest
     Send a ctrl-alt-f2
     Problem 2 : dmesg on the guest to see backtrace.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.12.0-1-generic 3.12.0-1.3
  ProcVersionSignature: Ubuntu 3.12.0-1.3-generic 3.12.0-rc7
  Uname: Linux 3.12.0-1-generic x86_64
  ApportVersion: 2.12.6-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Mon Nov  4 17:08:38 2013
  HibernationDevice: RESUME=UUID=0190ef1f-ced8-4fbc-9fc3-bd9f73c329db
  InstallationDate: Installed on 2013-10-20 (14 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta amd64 (20131012)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: Bochs Bochs
  MarkForUpload: True
  ProcFB: 0 qxldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-1-generic root=UUID=3072ba2d-eda3-4789-9a31-38240b2aae52 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:
   linux-restricted-modules-3.12.0-1-generic N/A
   linux-backports-modules-3.12.0-1-generic  N/A
   linux-firmware                            1.117
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2013-11-02 (2 days ago)
  dmi.bios.date: 01/01/2011
  dmi.bios.vendor: Bochs
  dmi.bios.version: Bochs
  dmi.chassis.type: 1
  dmi.chassis.vendor: Bochs
  dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2011:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr:
  dmi.product.name: Bochs
  dmi.sys.vendor: Bochs

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