It looks like Upstart isn't able to create cgroups on Xenial. We've started up the cgmanager before the starting of Upstart, but jobs that have the "cgroup" entry in their Upstart job configuration immediately go to failed without running their exec. We are using the "freezer" cgroup which seems to be allowed by the user and configured. I think this bug is with the upstart configuration on Xenial.
It looks like Upstart isn't able to create cgroups on Xenial. We've started up the cgmanager before the starting of Upstart, but jobs that have the "cgroup" entry in their Upstart job configuration immediately go to failed without running their exec. We are using the "freezer" cgroup which seems to be allowed by the user and configured. I think this bug is with the upstart configuration on Xenial.