Comment # 3 on bug 89707 from Luke

Yes, I was able to bisect it down to this commit:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=6fcb5520b78cdf1e5013c125501932315a069955

last good commit:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=b7186ebea996072ed519ebae3fac8210941ce607


Marek,
Do you know why this would crash my system so badly?