Created attachment 108075 [details]
dmesg when Unreal Elemental hangs on start

R9270X Sometime running unreal elemental demo it hangs at startup with errors
in dmesg attached.

This doesn't always happen.

Mesa is currently on winsys/radeon: Use a single buffer cache manager again,
previously produced with slightly older.

Haven't seen on drm-next-3.18-wip (but really need to test more with current
mesa)

Possibly unrelated, but new for drm-next-3.19-wip I get below when running
Unigine Valley - it runs OK.

Oct 17 11:15:35 ph4 kernel: radeon 0000:01:00.0: GPU fault detected: 146
0x0af03504
Oct 17 11:15:35 ph4 kernel: radeon 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x00010E57
Oct 17 11:15:35 ph4 kernel: radeon 0000:01:00.0:  
VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x10035004
Oct 17 11:15:35 ph4 kernel: VM fault (0x04, vmid 8) at page 69207, read from
VGT (53)