While QNX is mentioned, does anyone know of any materials detailing the implementation of MX tables in QNX? I've stumbled upon a brief synopsis[1] of what they do, but it lacked implementation details (such as: do the entries need to be aligned on page boundaries? how many copies are made at the end? etc. etc.).

[1]: <https://cseweb.ucsd.edu/~voelker/cse221/papers/qnx-paper92.p...>