The key phrase from the log is
"GPU 2, GpuMiner cu_kd failed 8 (0), invalid device function"

It means that drivers cannot compile kernel for GPU. On Windows I can build kernel with compute_30,sm_30 and it will work for all cards that have capability 3.0 or higher. For Linux, it does not work for some reason, and I have to build kernel for all archs: compute_30,35,50. I need to link miner with cuda8 to be able to compile it with compute_60, are you ready to test updated version?
I still cannot understand why drivers for Windows can compile "compute_30,sm_30" kernel for compute_50 device (or compute_60 device), but Linux drivers don't want to do it.