Test is failing in Skylake/Broadwell in several cases.
One of them is:
"Promotion from internal format GL_RGBA4 have failed during functional test of alpha channel with target GL_TEXTURE_2D_MULTISAMPLE. Expected value = 0.75 read value = 0.666667"
The problems are all in the test. I have a fix in progress.
It looks like this was fixed by the following VK-GL-CTS commit:
Author: Juan A. Suarez Romero <email@example.com>
Date: Wed Oct 18 09:37:27 2017 +0000
Several fixes for texture_size_promotion