[Bug 100906] Portal2 pauses while playing on Skylake

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100906

            Bug ID: 100906
           Summary: Portal2 pauses while playing on Skylake
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: david at lunarg.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

This might be a duplicate of bug 99561.

When playing Portal2, the game will sometimes freeze for a few seconds before
continuing. Get the following output from /proc/kmsg when the hang occurs:

   <6>[2324542.553932] [drm] stuck on render ring
   <5>[2324542.561187] drm/i915: Resetting chip after gpu hang

The hang seems to happen more often when playing back a trace file of the game
than when actually playing the game. The apitrace file is attached.

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