Comment 87 for bug 1567540

Looking through the crashes this seems usually one of the two:
http://bugs.ntp.org/show_bug.cgi?id=2831 (as mentioned before)
http://bugs.ntp.org/show_bug.cgi?id=2954 (related)

There was a bit back and forth on what of the two is a dop to the other.
Eventually 2954 has a fix I should be able to backport rather easily.
Eventually 2954 has the fix, but 2831 later on got reopened and became an extension of the old fix.

This is a rather invasive patch, but fortunately at least 2954 came right after p4 got released so it matches still. Not so sure about 2831.

A few, but really only a few crashes I looked at could have been http://bugs.ntp.org/show_bug.cgi?id=2969
Backporting that is rather easy so I'm going to include it (low risk of changing anything else).

Not getting recent patches is hard atm due to https://github.com/ntp-project/ntp/issues/15.
Looking for alternatives right now.