Kubuntu Linux 14.04 64bits - GTX 960
Broken: 2.78c - From master hash ba256b32ee5
Short description of error
I get different results between CPU and GPU with the same configuration. In 2.78c with CPU I get a resulting black image. In Blender from master with CPU I get a better result, but apparently without being applied texture.
Exact steps for others to reproduce the error
Open the scene in Blender and compare render results between CPU and GPU.