[Bug 111782] [ICL] (recoverable) GPU hangs in SynMark2 CSDof

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111782

            Bug ID: 111782
           Summary: [ICL] (recoverable) GPU hangs in SynMark2 CSDof
           Product: Mesa
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: not set
          Priority: not set
         Component: Drivers/Gallium/Iris
          Assignee: intel-3d-bugs at lists.freedesktop.org
          Reporter: eero.t.tamminen at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Created attachment 145470
  --> https://bugs.freedesktop.org/attachment.cgi?id=145470&action=edit
ICL error state

Setup:
- ICL-U
- Ubuntu 18.04
- drm-tip git kernel
- Mesa git
- Unity desktop

Test-case:
- 3x fullscreen FullHD CSDof compute SynMark test-case:
  synmark2 OglCSDof

Notes:
* Main difference from this test to other tests is that it causes a lot of
register spilling while compiling on of the compute shaders
* Bug 111385 GPU hangs happen also on ICL, but CSDof hang doesn't happen on
GEN9
* There are no GPU hangs with the i965 driver

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