[Bug 93635] New: [BDW] Updating to linux 4.3 produces intermittent piglit.spec.arb_shader_image_load_store.qualifiers failurs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93635

            Bug ID: 93635
           Summary: [BDW] Updating to linux 4.3 produces intermittent
                    piglit.spec.arb_shader_image_load_store.qualifiers
                    failurs
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: mark.a.janes at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

System is BDWGT3e
Mesa/DRM versions are tip of master
test passes reliably on Linux 4.1 (stock debian testing kernel)
Stock 4.3.0 kernel fails this test intermittently

Test fails about 20% of the time, when run in Mesa CI (parallel execution, gbm
back end).

Sample output:
/tmp/build_root/m64/lib/piglit/bin/arb_shader_image_load_store-qualifiers -auto
-fbo
piglit: debug: Requested an OpenGL 3.2 Core Context, and received a matching
3.3 context

Probe value at (1, 0, 0, 0)
  Expected: 21.000000
  Observed: 0.000000
Probe value at (12, 0, 0, 0)
  Expected: 1.000000
  Observed: 0.000000

Let me know if more information is needed to reproduce this.

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