[Bug 97865] New: [BDW]GPU hangs when running Euro Truck Simulator 2 (and other games) with Mesa 12

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97865

            Bug ID: 97865
           Summary: [BDW]GPU hangs when running Euro Truck Simulator 2
                    (and other games) with Mesa 12
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: bugs.fdo at re-gister.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 126630
  --> https://bugs.freedesktop.org/attachment.cgi?id=126630&action=edit
/sys/class/drm/card0/error

The system is a PC with an Intel Iris Pro 6200 GPU (Broadwell desktop CPU) and
Linux 4.7.3 with Mesa 12.0.3.

Since I have updated Mesa on my system from 11.2 to 12 (currently running
12.0.3) several games cause my GPU to hang and usually result in the game
crashing right after that.

When I revert back to Mesa 11.2 the GPU hangs disappear and everything works
fine. ETS2 used to run okay with Mesa 12 up until recently when they switched
their engine from using OpenGL 2.1 to OpenGL 3.2. Another game that causes GPU
freezes with Mesa 12 is GRID Autosport, while it runs fine with the older Mesa
11.2.

Log output:

[949849.915313] [drm] stuck on render ring
[949849.915751] [drm] GPU HANG: ecode 8:0:0x84dfbffe, in eurotrucks2 [22299],
reason: Engine(s) hung, action: reset
[949849.917344] drm/i915: Resetting chip after gpu hang
[949859.914957] [drm] stuck on render ring
[949859.915582] [drm] GPU HANG: ecode 8:0:0x84dffffc, in eurotrucks2 [22299],
reason: Engine(s) hung, action: reset
[949859.917886] drm/i915: Resetting chip after gpu hang

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