managed-keys-zone: Failed to create fetch for DNSKEY update

[@lbutlr]

My secondary DNS server (bind916-9-16-27) is reporting:

managed-keys-zone: Failed to create fetch for DNSKEY update

At this point it only respond SERVFAIL to all queries.

The secondary DNS is a spare machine that is not used for anything else but DNS, so no one has touched it other than to update packages on it on well over 18 months.

Ideas?

(Search pointed me to one bug report for 9.17..mumble that got no answer other than 'create a report on git')

-- 
"I don't think the kind of friends I'd have would care."