[Bug 87586] New: Desktop freeze due to GPU hang (GPU HANG: ecode 0:0x002883e6)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87586

            Bug ID: 87586
           Summary: Desktop freeze due to GPU hang (GPU HANG: ecode
                    0:0x002883e6)
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: goretux at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 111170
  --> https://bugs.freedesktop.org/attachment.cgi?id=111170&action=edit
GPU crash dump

I have experienced a desktop freeze during few seconds. System messages relate
that to a GPU hang. In what follows, further information, and the GPU crash
dump.

* This situation was experienced under Kubuntu vivid (updated on the 22th,
december 2014), and compositor mode was enabled on the window manager kwin_x11.
(No problem encountered without the compositor mode)

* Linux version is 3.18.0-031800-generic #201412071935 SMP, from Ubuntu
repository

* The package used for xserver-xorg-video-intel is from
http://ppa.launchpad.net/xorg-edgers/ppa/ubuntu:

2:2.99.916+git20141215.99537089-0ubuntu0sarvatt

* system messages:

[ 3265.604584] [drm] stuck on render ring
[ 3265.606629] [drm] GPU HANG: ecode 0:0x002883e6, in kwin_x11 [3333], reason:
Ring hung, action: reset
[ 3265.606640] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 3265.606644] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 3265.606649] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 3265.606653] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 3265.606661] [drm] GPU crash dump saved to /sys/class/drm/card0/error

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