[PATCH] dlz_bind9 reload torture tests

[Aaron Haslett]

I've been trying to reproduce a bug where "rndc reload" causes bind9 dlz
to crash.  Here's some reports:

https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1670450

http://samba.2283325.n4.nabble.com/samba-dlz-shutting-down-on-named-reload-td4728465.html

https://lists.samba.org/archive/samba/2017-January/206165.html

https://bugzilla.samba.org/show_bug.cgi?id=13214


These torture tests rule out most of the theories in the discussions in
those links.