Blender 2.79 cycles normal map bake artifacts I am baking a normal map in Cycles and keep getting strange results, I do not know what am I doing wrong.

I tried baking in Cycles in tangent and object space, tried baking in BI in tangent and Object space.
The resulting map looks OK as far as I can tell, but I keep getting either completely or partially black render.

I tried all possible space options in Cycles material normal map node.
What am I missing?




Attachment: Blend file
Turn off Ambient Occlusion in World tab.