I've seen more than three similar livelocks, where the "looping" process seems to have a very high priority (-8). I can't really tell if this is the cause of the livelock, or just a side effect. http://people.freebsd.org/~pho/stress/log/cons146.html PS I've added a RSS feed to http://people.freebsd.org/~pho/stress/log/ -- Peter Holm