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[Witold Szczeponik <1496290@xxxxxxxxxxxxxxxxxx>]

I tested the upstream Linux 4.2 kernel.

As per https://bugs.freedesktop.org/show_bug.cgi?id=87244#c10, applying
said commit solves the problem. When time permits, I will create a 3.19
kernel with the cherry-picked commit and give it a try.

** Bug watch added: freedesktop.org Bugzilla #87244
   https://bugs.freedesktop.org/show_bug.cgi?id=87244

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https://bugs.launchpad.net/bugs/1496290

Title:
  System freeze due to "angry" nouveau driver

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Starting with the 3.19 kernels (Vivid), the system frequently freezes
  in the nouveau driver, with the following lines (w/ out timestamp and
  hostname) always being reported in "/var/log/kern.log" and/or
  "/var/log/syslog" just before the system becomes unresponsive and a
  hard reset becomes necessary.

  nouveau E[ PFIFO][0000:01:00.0] still angry after 101 spins, halt

  The bug is also reported in
  https://bugs.freedesktop.org/show_bug.cgi?id=87244, and the fix seems
  to be to cherry pick
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=adc346b133c952ec6988d90f6fa79cbe0a3eb7ef
  which is included in Linux 4.0 (if I am not mistaken).

  Here's some more info:

  lsb_release -rd:
  Description: Ubuntu 14.04.3 LTS
  Release: 14.04

  Affected package:
  linux-generic-lts-vivid-3.19.0.28.15

  (As the affected package breaks my system reliably several times a day, I reverted to linux-generic-lts-utopic.)
  --- 
  ApportVersion: 2.14.1-0ubuntu3.13
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  de107192   2480 F.... pulseaudio
   /dev/snd/controlC0:  de107192   2480 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2015-07-17 (61 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  MachineType: LENOVO 43892DG
  Package: linux (not installed)
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-50-generic root=/dev/mapper/SETEC-UBUNTU ro rootflags=subvol=@ quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.16.0-50.66~14.04.1-generic 3.16.7-ckt16
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-50-generic N/A
   linux-backports-modules-3.16.0-50-generic  N/A
   linux-firmware                             1.127.15
  Tags:  trusty
  Uname: Linux 3.16.0-50-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 10/03/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6NET84WW (1.45 )
  dmi.board.name: 43892DG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr6NET84WW(1.45):bd10/03/2012:svnLENOVO:pn43892DG:pvrThinkPadW510:rvnLENOVO:rn43892DG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 43892DG
  dmi.product.version: ThinkPad W510
  dmi.sys.vendor: LENOVO

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