Two different services attempting to bind on a single (IP, port) tuple is going to lead to a failure of one of the services. Prior to this update it was a silent failure, which serves only to make debugging problems more difficult.
I can empathize with the feeling that things shouldn't break in an LTS release, but it was quietly broken already. Thanks -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2055776 Title: After updating ubuntu, the network to which the subnet address is assigned does not become active in KVM. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/2055776/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs