I purchased a 5700XT the other day, and what I've noticed is that anything that
tries getting statistics from the GPU (radeontop, lm_sensors) induces a page
fault hang within a couple of minutes. In my testing I either ran lm_sensors
every three seconds, or radeontop, and left it idle while playing a game or
watching a video, and without fail, a hang would happen shortly after. As soon
as I stopped running either of those programs the hangs stopped. This may work
as a reproducible test case for some of the hangs.