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[HSW] Intermittent failures on KHR-GLES31.core.tessellation_shader.tessellation_control_to_tessellation_evaluation.gl_tessLevel

Submitted by clayton craft @craftyguy

Assigned to Kenneth Graunke @kwg

Link to original bug (#105261)

Description

In mesa CI, there are intermittent (~90%) failures on this test: KHR-GLES31.core.tessellation_shader.tessellation_control_to_tessellation_evaluation.gl_tessLevel.

stdout:

Invalid inner/outer tessellation level used in TE stage; expected outer:(16.8, 8.2) rendered outer:(0, 0) vertex spacing mode: equal_spacing Invalid inner/outer tessellation level used in TE stage at esextcTessellationShaderTCTE.cpp:3671

I wasn't able to reproduce this after looping glcts on this one test (with multiple instanced running), but it does fail if looping the full glcts.

Version: git

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