This bug was fixed in the package resolvconf - 1.78ubuntu7
--------------- resolvconf (1.78ubuntu7) xenial; urgency=medium
* bin/resolvconf: use flock so resolvconf can be called in parallel safely (LP: #1825194).
-- Alfonso Sanchez-Beato (email Canonical) <email address hidden> Mon, 06 May 2019 10:39:40 +0200
This bug was fixed in the package resolvconf - 1.78ubuntu7
---------------
resolvconf (1.78ubuntu7) xenial; urgency=medium
* bin/resolvconf: use flock so resolvconf can be called in parallel
safely (LP: #1825194).
-- Alfonso Sanchez-Beato (email Canonical) <email address hidden> Mon, 06 May 2019 10:39:40 +0200