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[Dave Gilbert <ubuntu@xxxxxxxxxxx>]

Linux trusty 3.12.0-1-generic #3-Ubuntu SMP Tue Oct 29 18:41:32 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
  corrupted console on 1st c-a-f1, oops on c-a-f3 (even via grub menu)

Linux trusty 3.10.0-031000-generic #201306301935 SMP Sun Jun 30 23:36:16 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
  got oops on 4th console change
Linux trusty 3.9.0-030900-generic #201305071030 SMP Tue May 7 14:32:17 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
  corrupted consoles - but no oops
Linux trusty 3.8.0-030800-generic #201302181935 SMP Tue Feb 19 00:36:19 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
  corrupted consoles - but no oops

so the oops itself looks like it landed between 3.9.0 and 3.10.0, but
I'm suspicious that the corrupted consoles in all of them are symptoms
of the same bug.

(an fc19 guest running 3.11.6 doesn't oops and has nice lean consoles).
I'll dig into this a bit.

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

Title:
  Repeatable oops qxl_enc_commit

Status in “linux” package in Ubuntu:
  Confirmed

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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