[Bug 89398] New: [g965] glsl-1_20.execution.clipping.fixed-clip-enables fails when run concurrently

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89398

            Bug ID: 89398
           Summary: [g965] glsl-1_20.execution.clipping.fixed-clip-enables
                    fails when run concurrently
           Product: Mesa
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: idr at freedesktop.org
          Reporter: mark.a.janes at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

There appears to be a clipping regression for g965.

in addition to the test in the summary,
spec.glsl-1_10.execution.clipping.clip-plane-transformation pos_clipvert fails
in the same way.

Both tests pass when run independently.  Looping several thousand times on the
single test does not reproduce the failure.

They fail when piglit is running the whole suite, either in parallel or
sequentially.

Also, you can reproduce the failure by looping on the test and running some
other workload like shaderdb.

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