Delete a directory, crash the system

[David Noel]

Ok folks, thanks again for all the help. Using the feedback I
submitted a PR (#180894) --
http://www.freebsd.org/cgi/query-pr.cgi?pr=180894. I also submitted a
follow-up to it with Frank's code and notes. What next? I don't really
know what happens from here, but I'm guessing/hoping that someone's
monitoring the PR system and will move this forward.

Crossing my fingers, though if anyone knows any better methods of
getting PR's addressed I'm all ears.

-David