Got a reasonable thread to my question on freebsd-net about FreeBSD behaviour when the listen queue is full. It seems that it sends an RST which Bill Fenner [IETF routing area director] and Wietse Venema of, Postfix fame seem to think its a very bad thing
Hope the freebsd hackers can get a definitive reply soon and make the appropiate changes to the listen(2) manpage
I asked Jeff Garzik what Linux does in this situation, I looked at the code but couldn't figure it out. BSD code seems easier to read (having the design/implemation of the 4.4 BSD book by your side helps). If anybody else knows about this, let me know via a diary entry
No reply from Jeff as yet, maybe he got caught up in the stupid BitKeeper flamewar on lkml. Daniel Phillips is a smart person, just don't understand why he had to suck up so much bandwith/time for this issue