WARNING: I implemented a tiny library for that in go a while ago. Go under Linux is not safe! Linux is not posix compliant and only sets the IDs for the current thread. Go almost always spawned more threads before initializing your code which are then still owned by root and are in the threadpool for your goroutines:

https://github.com/sarnowski/mitigation/blob/master/mitigati...

Comments mentions safe OS and golang bugticket.