kernel-packages team mailing list archive

[chris pollock <1497627@xxxxxxxxxxxxxxxxxx>]

An additional note. Based on a bug that I have been supplying
information to https://bugs.freedesktop.org/show_bug.cgi?id=75394
because initially there would be an error noted in my syslog
"[drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... render
ring idle". This error has since stopped being entered into my syslog.
The reason that I'm running a non-Ubuntu kernel but instead the most
current stable drm-intel kernel from here http://kernel.ubuntu.com
/~kernel-ppa/mainline/drm-intel-next/ is that I posted a message about
this issue in the Intel-GFX mailing list and was contacted by Chris
Wilson, Intel Open Source Technology Centre who had me update to kernel
4.0.0-997-generic. I also updated the driver per his instructions which
can be seen in the attached Xorg.0.log. I have also filed a bug report
about this previously -
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1402331 A bug
report that I personally filed at freedesktop.org -
https://bugs.freedesktop.org/show_bug.cgi?id=91495 can also be
referenced for more information. When the freeze happens I'm able to SSH
into the desktop from my tablet. I've run some GDB back traces on Gnome-
Shell. The one from a freeze in August is attached. The latest freeze
was on 10 Sept at 5:03am after a runtime of 16d9h12m. The system was
fairly idle at this time as there were no applications running using
video such as Firefox or Evolution just background apps.

** Bug watch added: freedesktop.org Bugzilla #75394
   https://bugs.freedesktop.org/show_bug.cgi?id=75394

** Bug watch added: freedesktop.org Bugzilla #91495
   https://bugs.freedesktop.org/show_bug.cgi?id=91495

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https://bugs.launchpad.net/bugs/1497627

Title:
  Periodically video will freeze for no reason at all and no specific
  time between freezes.

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  This has been going on for over a year. It doesn't matter if I have
  any applications open such as Evolution or Firefox. It could happen
  any time during the day when I'm working on the computer or during the
  night when its' the most idle. Once the video freezes the cursor can
  still be moved around the desktop however clicking on anything does
  not work. During this time all background process and cronjobs
  continue to run.

  Running the command listed below:

  chris@localhost:~$ cat /proc/version_signature > version.log
  cat: /proc/version_signature: No such file or directory

  Of course what I expect to happen is the video to not freeze every so often.
  What happened is that the video froze.

  cat release.txt
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04
  --- 
  ApportVersion: 2.14.1-0ubuntu3.13
  Architecture: amd64
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2014-10-24 (330 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  Tags:  trusty
  Uname: Linux 4.0.0-997-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True

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