site crashnow doesn't produce any dumps, or restart site. At the latest crash I had just now, I was able to log in once, and one session even responded to ABOR. But after login+ABOR, no new sessions where accepted. The first thread that hanged, was still dead. Site crashnow did nothing.
It's a pain to debug it, since I have to catch it at the excact couple of minutes it's crashing to be able to issue commands. Would be very helpful to be able to crash/debug externally, for when io stops accepting connections.. which is multiple times a day on some boxes