Comment 13 for bug 963106

On my test systems I fixed this bug by editing /etc/init.d/umountroot and adding...

/sbin/killall5 -15
sleep 2

...just before the part where it remounts the root fs RO. That tells the system to
ask all non-kernel tasks to clean up and exit. No idea if this is a "proper" fix
but on my installs it results in a clean shutdown and no recovery on restart.
Also not a NetworkManager file... but rather a generic way of dealing with the issue
of tasks still running when taking down the system. Would be better if it only
terminated tasks that actually have open files on the root FS.