What steps will reproduce the problem? 1. Attempt to lock a file on a SMB connected NAS from a Mac OS X

What is the expected output? What do you see instead? The lock cannot be acquired

What version of the product are you using? On what operating system? 0.9.1, Mac OS X against a Buffalo Terastation NAS

Please provide any additional information below.

Note that I attempted a hard link from sh and got "not supported" as an error. That implies that just checking for the presence of "ln" as a decision as to which methodology of locking is not sufficient.