[Bug 105261] [HSW] Intermittent failures on KHR-GLES31.core.tessellation_shader.tessellation_control_to_tessellation_evaluation.gl_tessLevel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105261

--- Comment #1 from Marina Chernish <zmiy.maryna at gmail.com> ---
Hi Clayton,

I doublechecked this test on my Haswell (Intel® HD Graphics 4600) and caught
about 30% of fails.

Here is log output of the fail:
./glcts -n
"KHR-GLES31.core.tessellation_shader.tessellation_control_to_tessellation_evaluation.gl_tessLevel"
Writing test log into TestResults.qpa
dEQP Core git-c48d72686423076b78b205fdb193d142a38f747a (0xc48d7268) starting..
target implementation = 'X11 EGL/GLX'

Test case
'KHR-GLES31.core.tessellation_shader.tessellation_control_to_tessellation_evaluation.gl_tessLevel'..
Fail (Invalid inner/outer tessellation level used in TE stage at
esextcTessellationShaderTCTE.cpp:3671)

DONE!

Test run totals:
Passed: 0/1 (0.0%)
Failed: 1/1 (100.0%)
Not supported: 0/1 (0.0%)
Warnings: 0/1 (0.0%)

It passed 100% (100/100) on the 13.0.6 mesa (I've run it 100 times in a row
having 1 sec of delay) and it got failed ~30% on the 17.0.0 mesa so I've made
bisect and got following result:
e6ae19944d977dc91bc45adff679337182c20683 is the first bad commit
commit e6ae19944d977dc91bc45adff679337182c20683
Author: Kenneth Graunke <kenneth at whitecape.org>
Date: Thu Nov 24 01:50:10 2016 -0800

My environment is: CPU Intel Core i5-4300M; GPU Intel® HD Graphics 4600; Ubuntu
16.04; kernel 4.15.0-36-generic

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