FreeBSD 7.0 Beta,RC,RELEASE (amd64) freezes with dummynet enabled

[Matus Zilla]

I have posted before that i have a stability issue with the 7.0 branch 
on my servers. Tested on BETA2,BETA4,RC1,RC2,RELEASE

The original thread and my post with details is at:
http://unix.derkeiler.com/Mailing-Lists/FreeBSD/current/2007-12/msg00674.html

I was waiting for the 7.0-RELEASE, updated the whole servers, and 
enabled dummynet again, but it always freezes after some minutes, 100% 
reproducible.

I tested it also on a HP 140 G3 1U server, where 6.3 has absolutely no 
problems, but the 7.0 branch keeps freezing.

Again, if it helps to solve this bug, i can rebuild the kernel with 
debug symbols a take some screenshots :)