Public bug reported: Running systemd-networkd from systemd 237-3ubuntu10.23 on Ubuntu 18.04.2 I have one machine where, every time systemd-networkd restarts (ie every time there is an update to systemd) the bond0 interface stops working.
I see both physical interfaces go soft down and then come back again: Jun 21 07:28:24 odin.openstreetmap.org systemd[1]: systemd 237 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SEC Jun 21 07:28:24 odin.openstreetmap.org systemd[1]: Detected architecture x86-64. Jun 21 07:28:24 odin.openstreetmap.org kernel: bond0: link status down for backup interface eno2, disabling it in 200 ms Jun 21 07:28:24 odin.openstreetmap.org kernel: bond0: link status down for active interface eno1, disabling it in 200 ms Jun 21 07:28:24 odin.openstreetmap.org kernel: 8021q: adding VLAN 0 to HW filter on device eno2 Jun 21 07:28:25 odin.openstreetmap.org kernel: 8021q: adding VLAN 0 to HW filter on device eno1 Jun 21 07:28:25 odin.openstreetmap.org kernel: bond0: link status up again after 200 ms for interface eno2 Jun 21 07:28:25 odin.openstreetmap.org kernel: bond0: link status up again after 100 ms for interface eno1 and after that nothing until I stop systemd-networkd, delete the bond interface, and then start systemd-networkd again. On most machines the cycle seems to take a bit longer and the interfaces reach a hard down start before coming back and in that case there seems to be no problem. I think this is likely an instance of this upstream bug: https://github.com/systemd/systemd/issues/10118 which has a fix here: https://github.com/systemd/systemd/pull/10465 ** Affects: systemd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1833671 Title: bond interfaces stop working after restart of systemd-networkd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1833671/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs