@ddstreet, the Ubuntu-lts-3.19.0-49.55_14.04.1 doesn't seem to fix this issue. We just upgraded a Juno openstack environment to this kernel version and we are still seeing this on a network node.
[controller] root@node-28:~# uname -a Linux node-28.domain.tld 3.19.0-49-generic #55~14.04.1-Ubuntu SMP Fri Jan 22 11:24:31 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux [controller] root@node-28:~# dmesg -T | tail -n 3 [Thu Feb 11 07:14:15 2016] unregister_netdevice: waiting for lo to become free. Usage count = 4 [Thu Feb 11 07:14:26 2016] unregister_netdevice: waiting for lo to become free. Usage count = 4 [Thu Feb 11 07:14:36 2016] unregister_netdevice: waiting for lo to become free. Usage count = 4 [controller] root@node-28:~# dmesg -T | grep -c unregister_netdevice..waiting 6401 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1403152 Title: unregister_netdevice: waiting for lo to become free. Usage count To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1403152/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
