Created attachment 77426 [details]
dmesg output from when the GPU resets. This keeps happening until the game is
killed or you look away from whatever is causing the lockup.

This might be related to bug #61721, as it also occurs on my machine.

When playing Half Life 2 Deathmatch, the game runs great until certain scenes
cause a GPU lockup.

When run with R600_DEBUG=nohyperz there's no lockup, but performance is much
slower. (from ~85fps vsync 1400x1050 down to ~45fps w/o HyperZ)

I'll see if I can get an apitrace tonight.