This bug was fixed in the package ifupdown - 0.7.54ubuntu2
--------------- ifupdown (0.7.54ubuntu2) xenial; urgency=medium
* Per-interface hierarchical locking. Backported from Debian git head. (LP: #1337873, Closes: #753755)
-- Dariusz Gadomski <email address hidden> Thu, 10 Nov 2015 11:30:14 +0200
This bug was fixed in the package ifupdown - 0.7.54ubuntu2
---------------
ifupdown (0.7.54ubuntu2) xenial; urgency=medium
* Per-interface hierarchical locking. Backported from Debian git head.
(LP: #1337873, Closes: #753755)
-- Dariusz Gadomski <email address hidden> Thu, 10 Nov 2015 11:30:14 +0200