https://bugs.freedesktop.org/show_bug.cgi?id=95659
--- Comment #2 from Tiger tigerliu.ee@gmail.com --- (In reply to Michel Dänzer from comment #1)
Did this also happen with older versions of Mesa and/or the kernel?
I've done the test with Mesa 10.3.0 (xorg-server-1.16,libdrm-2.56) and kernel-3.14, the GPU lockup does not occur. I've also tried with Mesa 10.3.0 and kernel-4.4, the GPU lockup still not occurs. So It looks like it have a relationship with the mesa.