Windows 8.1 64 bit
nvidia Geforce GTX 750Ti
Broken: since release 2.77 22a2853 | also in latest build 6ec599c
Worked: release 2.76b f337fea
Short description of error
If you link or append a scene into a main file and there is another linked scene active, blender will crash. If you make a non-linked scene active in the file before linking/appending it works.
Exact steps for others to reproduce the error
Open main.blend and try to link scene link_b from link_b.blend when scene is active and then when link_a is active.