Hey,
after upgrading to the latest revision of PS2SDK, I encountered some problems.
One of them concerns ps2netfs.irx. No matter what I do, I can't get my program to load this IOP module (IIRC, SifLoadModule() always returns -200). Did anybody succeed in loading it?
FYI, I've built the toolchains and PS2SDK on openSUSE. When using an old Cygwin build, there were no such issues.
Issues concerning PS2SDK
If you look in ps2lib_err.h you will see that -200 is a dependancy error, so you are not loading, or loading an incorrect version of, a module required by ps2netfs.irx