systemd waiting for stop jobs

[Bruno Wolff III]

On Fri, Apr 05, 2013 at 20:22:48 +0200,
   Michael Schwendt <mschwendt at gmail.com> wrote:
>There are days when I do multi-booting, and sometimes I type "reboot" in
>a terminal. Recently, that doesn't work well anymore, because all I get
>is the small Fedora logo, and when I hit ESC for the details, systemd is
>looping through a list of "stop jobs" without any progress. Some of them
>are for custom mount-points and --bind mounts. Perhaps there will be a
>time-out eventually, but I'm not patient enough to wait minutes for
>something to happen.
>
>Is it just my test installation where this occurs?

I see this once in a while. It seems that it typically is having trouble 
cleaning up devices (file systems, luks containers, raid arrays) and times 
out in a few minutes.