shader-image 63/56/6, ssbo 124/0/0, dsa 368/0/2, texture 815/221/18, packed-pixels
4732/0/0 (Pass/NotSupported/Fail); every block complete (no unrun, hung or crashed);
library p7w1-d260f110, glcts from VK-GL-CTS 0b04c470e with the FBO colour-texture
patch, API probe confirms GL 4.6. The AFTER reading compares inproc against this at
0.5 pp per block with new crashes as a separate hard red.