[Bug 99924] New: [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99924

            Bug ID: 99924
           Summary: [drm] stuck on render ring
           Product: DRI
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: cphealy at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 129875
  --> https://bugs.freedesktop.org/attachment.cgi?id=129875&action=edit
The contents of /sys/class/drm/card0/error

3.14.5 kernel
2.4.52 libdrm
1.6.2 libX11
10.0.2 Mesa
2.21.15 xf86-video-intel
1.12.4 xserver-xorg

Running a custom OpenGL application and this issue occurred resulting in the
OpenGL application no longer rendering

Kernel messages as follows:

[51630.220152] [drm] stuck on render ring
[51630.220163] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[51630.220167] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[51630.220170] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[51630.220173] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[51630.220176] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[51636.201578] [drm] stuck on render ring
[51642.202965] [drm] stuck on render ring
..... keeps going indefinitely ....

After I copied /sys/class/drm/card0/error to /tmp, the system automatically
recovered and continued rendering as if there was no problem.

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