It seems I get the same freezes than you. It takes hours of gaming to get some
random hard hang (no log). I thought I was overheating, but realized that my
system is on
"vacation" while playing.
linux amd-staging-drm-new/x11 native/mesa/llvm(erk...), all git no older than a
week.
playing mostly dota2 vulkan on AMD TAHITI XT