Kubuntu 14.04 - GTX 960
Broken: 2.79 official, master
Short description of error
First of all, I'm not good with nodes. This may be due to a bug, or a bad configuration of nodes on my part. If it is the latter, sorry for inconveniences.
There are differences between GPU or CPU. In 2.79 release CPU render some circular stripes, still result different from GPU. From Master CPU does not render any texture.
Exact steps for others to reproduce the error
Open scene. Render with CPU or GPU (or combined from master)