[Bug 103988] Intermittent piglit failures with shader cache enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103988

            Bug ID: 103988
           Summary: Intermittent piglit failures with shader cache enabled
           Product: Mesa
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: jljusten at gmail.com
          Reporter: mark.a.janes at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

Running piglit a second time with all shaders cached, several tests fail
intermittently:

piglit.spec.arb_shading_language_420pack.active sampler conflict
Unexpected GL error: GL_NO_ERROR 0x0
(Error at
../tests/spec/arb_shading_language_420pack/execution/active-sampler-conflict.c:148)
Expected GL error: GL_INVALID_OPERATION 0x502

piglit.spec.arb_tessellation_shader.execution.tcs-input-read-array-interface
Probe color at (0,0)
  Expected: 0 255 0 255
  Observed: 0 0 0 0
Test failure on line 70

piglit.spec.glsl-1_50.execution.geometry.clip-distance-vs-gs-out
Probe color at (0,0)
  Expected: 0 255 0 255
  Observed: 255 0 0 255
Test failure on line 53

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