Comment # 5 on bug 96271 from Stephen Liang

I just ran the apitrace 6 times in a row and it finally hung on the 6th try, so
it's fairly difficult to get apitrace to hang the GPU but it eventually does do
it. 

On this run, I'm using:

Kernel: 4.4.9-300.fc23.x86_64 with radeon.lockup_timeout=0
xorg-x11-drv-ati: 7.6.1-3.20160215gitd41fccc.fc23

strace on apitrace:

strace: Process 5913 attached
wait4(5914,

strace on glretrace:

strace: Process 5914 attached
futex(0xff92ec, FUTEX_WAIT_PRIVATE, 5359, NULL