On multicore machines several buffers simultaneously write to the screen and produce unreadable output. How-To-Repeat: Apply the patch and add shutdown_clean_enable="YES" to your /etc/rc.conf.
Responsible Changed From-To: freebsd-bugs->freebsd-rc Over to maintainer(s).
You can reject this. It doesn't work reliably. Apparently it sometimes takes too long to move all processes off the deactivated core. Sorry for the noise.
State Changed From-To: open->closed Submitter requested this be closed.
Responsible Changed From-To: freebsd-rc->gavin Take