After looking for a while, I think that the error we were managing to reproduce (LOWERLAYERDOWN) was probably a red herring, and we were reproducing some other (valid) bug. The original cause of the testsuite failure still exists.
Not entirely sure why but this only reproduces for me 'properly' when I use the real autopkgtest cloud. It's quite reliable there, so I ran a bisect and it resulted in this mail: http://lists.thekelleys.org.uk/pipermail/dnsmasq- discuss/2018q4/012709.html I freely admit my relative ignorance here, so if anyone can help please feel free to chip in. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1805857 Title: network-manager dep8 failure blocks dnsmasq proposed migration Status in network-manager package in Ubuntu: Triaged Status in network-manager source package in Disco: Triaged Bug description: dnsmasq 2.80-1 is blocked from migrating to the release pocket because of, amongst other things, a network-manager dep8 regression. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1805857/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp