[Bug 92190] New: [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92190

            Bug ID: 92190
           Summary: [drm] stuck on render ring
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: senior-pimiento at ya.ru
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Sometimes it stuck my WM (Unity) and I can only move mouse cursor without
changing virtual desktops or type anything into application (Emacs, for
example). Also, it starts break fonts on my running Firefox pages. I think, the
problem is with some pages opened in Firefox after it uses hardware
acceleration, it looks so for me.

[Ср. сент. 30 14:05:15 2015] -  [drm] stuck on render ring
[Ср. сент. 30 14:05:15 2015] - [drm] GPU crash dump saved to
/sys/class/drm/card0/error
[Ср. сент. 30 14:05:15 2015] - [drm] GPU hangs can indicate a bug
anywhere in the entire gfx stack, including userspace.
[Ср. сент. 30 14:05:15 2015] - [drm] Please file a _new_ bug report on
bugs.freedesktop.org against DRI -> DRM/Intel
[Ср. сент. 30 14:05:15 2015] - [drm] drm/i915 developers can then
reassign to the right component if it's not a kernel issue.
[Ср. сент. 30 14:05:15 2015] - [drm] The gpu crash dump is required to
analyze gpu hangs, so please always attach it.

I can not attach that file (/sys/class/drm/card0/error), so here is link for
it: https://yadi.sk/d/mMafPWrvjREgG

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