It says in kern/kern_kthread.c that any process can fork a kernel
thread. Is that true? If so, will the interface be exported in 1.5?

I ask because, in looking at the "wine" FreeBSD assembly, it seems
that all it's trying to do is start a single "wineserver" kthread.
It seems the natural way to do this on NetBSD would be to call
kthread_create(). Does that make sense?