First sighted at Author: Kenneth Graunke <kenneth@whitecape.org> i965: Always reserve clip distance VUE slots in SSO mode. This commit may not be the root cause, due to the intermittent nature of the bug. Standard Output /tmp/build_root/m64/lib/piglit/bin/arb_shader_image_load_store-semantics --quick -auto -fbo piglit: debug: Requested an OpenGL 3.2 Core Context, and received a matching 4.5 context Probe value at (0, 0, 0, 0) Expected: 2147483648.000000 Observed: 0.000000 Source: image This test is disabled in the intel CI.
I can reproduce this. I have no idea what's going on yet.
I've got some patches. Seems like one of my hacks is going wrong. I'm still not sure why the hack isn't working, but I've solved the issue it was trying to work around more definitively, allowing me to drop it, which ends up fixing this.
Fixed by: commit 05a4e3a0096a8a3ed277bbcf5b0b1393b5e6e494 Author: Kenneth Graunke <kenneth@whitecape.org> Date: Sun Dec 4 22:35:42 2016 -0800 i965: Don't force SSO layout for VS->TCS.
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