We upgraded to the vlan 1.9-3.2ubuntu1.16.04.3 package and our networking broke horribly in a very similar way.
Let me start with our networking configuration. Two slaves, a bond and a vlan on top of that bond: auto eno1 iface eno1 inet manual mtu 1500 bond-master bond1 bond-primary eno1 auto eno2 iface eno2 inet manual mtu 1500 bond-master bond1 auto bond1 iface bond1 inet static mtu 1500 address 10.10.10.3 bond-miimon 100 bond-mode active-backup bond-slaves none bond-downdelay 200 bond-updelay 200 dns-nameservers 10.10.0.1 netmask 255.255.0.0 auto bond1.2 iface bond1.2 inet static mtu 1500 address 10.11.10.3 netmask 255.255.0.0 vlan-raw-device bond1 This fails to come up correctly, both during boot and manually. Bringing up either eno1, eno2, bond1 or bond1.2 all result in the same problem: "ifup: waiting for lock on /run/network/ifstate.bond1". Problem seems to be that ifup tries to bring up the base bond1 interface *again*. Even if it is already up. And it gets stuck waiting for the bond1 interface to be unlocked so it can bring it up, but it is already up and thus locked so that will never happen. We also tried bringing all interfaces down and just running "ifup bond1.2" but that results in the same behavior. Only workaround that seemed to work for us was to: 1) temporarily remove the bond1.2.cfg from /etc/network/interfaces.d 2) bring up eno1, eno2 and bond1 3) put the bond1.2.cfg back in its place 4) run "ifup bond1.2" 5) using another terminal, list all open processes using "ps -ef | grep ifup" 6) kill the "ifup bond1" process The "ps -ef | grep ifup" during step 5, outputs two ifup processes. One for bond1 and one for bond1.2. As soon as we kill the "ifup bond1" process, the "ifup bond1.2" process completes immediately and correctly configures the vlan 2 subinterface. This is clearly linked to vlan, because our infiniband interfaces work just fine. Also it worked just fine before upgrading the package. So my best guess would be that something broke in the code that detects if the vlan-raw-device is up. Perhaps related to LP #1573272 ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1636708 Title: ifup -a does not start dependants last, causes deadlocks with vlans/bonding To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1636708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
