Created attachment 145346 [details] Amber test that exposes the problem Doing: amber -d killer.amber causes my machine to lock up (the display freezes, then goes into a pretty cool and crazy scramble of colours). Build: Mesa 19.2.0-devel (git-2eace10c62) (Debug) Device: Radeon RX Vega I expect this is related to https://bugs.freedesktop.org/show_bug.cgi?id=111147 - that was a highly reduced shader. I have included the unreduced shader in the hope that the issue is less likely to be sensitive to small changes in shader compilation. I have tried enabling amdgpu.gpu_recovery=1 but this doesn't seem to help.
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