If I want to mess around with the textures, or render a more complex layout, the rendering engine gets stuck.
Even reloading the geometry does not change it.
I already thought my video cards were broken and have my old installed, but is the same problem.
Have my old Windows 7 loaded where once everything has worked, again the same problem.
Here is the logg with 2 GTX 970 cards from MSI:
19: 04: 08.127: +++++ plugin running.
19: 11: 08.772: CUDA error 719 on device 0: unspecified launch failure
19: 11: 08.776: -> kernel execution failed (kernel25)
19: 11: 08.781: CUDA error 719 on device 1: unspecified launch failure
19: 11: 08.785: CUDA error 719 on device 0: unspecified launch failure
19: 11: 08.790: -> kernel execution failed (kernel25)
19: 11: 08.796: -> failed to launch kernel (kernel34)
19: 11: 08.804: CUDA error 719 on device 1: unspecified launch failure
19: 11: 08.814: device 0: path tracing kernel failed
19: 11: 08.828: -> failed to launch kernel (kernel34)
19: 11: 08.828: device 1: path tracing kernel failed
19: 11: 08.829: Render engine failure occured! (WARNING)
19: 11: 11.836: Render engine failure occured! (WARNING)
Since the logg with a GTX 780 and a GTX 760:
19: 51: 33.072: +++++ plugin running.
20: 35: 15.426: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.436: -> kernel execution failed (kernel25)
20: 35: 15.445: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.454: -> failed to launch kernel (kernel34)
20: 35: 15.463: device 0: path tracing kernel failed
20: 35: 15.481: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.481: Render engine failure occured! (WARNING)
20: 35: 15.490: -> failed to set texture format (__ data24__)
20: 35: 15.499: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.508: -> failed to set texture format (__ data26__)
20: 35: 15.509: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.517: -> failed to set texture format (__ data29__)
20: 35: 15.525: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.531: -> failed to set texture format (__ data30__)
20: 35: 15.540: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.546: -> failed to set texture format (__ data27__)
20: 35: 15.555: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.564: -> failed to deallocate device memory
20: 35: 15.573: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.582: -> could not get memory info
20: 35: 15.591: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.599: -> failed to deallocate device memory
20: 35: 15.607: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.613: -> could not get memory info
20: 35: 15.618: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.623: -> failed to deallocate device memory
20: 35: 15.625: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.630: -> could not get memory info
20: 35: 15.631: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.636: -> failed to deallocate device memory
20: 35: 15.637: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.642: -> could not get memory info
20: 35: 15.646: Failed to free page-locked memory
20: 35: 15.650: Failed to free page-locked memory
20: 35: 15.654: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.659: -> failed to deallocate device memory
20: 35: 15.663: CUDA error 700 on device 0: illegal memory access was encountered
20: 35: 15.667: -> could not get memory info
Current Nvida driver version. v397.64