https://bugs.freedesktop.org/show_bug.cgi?id=105251
--- Comment #72 from Pierre-Eric Pelloux-Prayer pierre-eric.pelloux-prayer@amd.com --- This MR https://gitlab.freedesktop.org/mesa/mesa/merge_requests/1265 should improve the situation. It has been merged last week.
An incorrect program (like "vega_crasher") should hit an assert (if they're enabled in Mesa) or produce an incorrect rendering but shouldn't hang the GPU anymore.