Comment # 2 on bug 93548 from Krzysztof A. Sobiecki

(In reply to Florian Krönert from comment #1)
> I can confirm system freezes while playing Grid Autosport, although they
> also happen while driving or navigating in the menus.
> I'm on RadeonSI with an A10-7850k and integrated graphics though, would this
> be a new bug then? Mesa version is 11.1.1.

I think it's separate bug, but you never know.
I would open separate bugreport and worry about duplicates later.