Using watch to monitor serial port results in reboot

Hi,

I am running the latest -CURRENT.

If I do the following as root:

watch -c /dev/ttyd0

and then:

killall watch

My system immediately reboots (not even a kernel panic).

I am wondering if the recent work on the tty drivers has
anything to do with this?

Thanks.
-- 
Craig Rodrigues        
http://crodrigues.org
rodrigc_at_crodrigues.org