** Branch linked: lp:~network-manager/network-manager/ubuntu -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1512749
Title: lxcbr0 dissappears on Ubuntu 15.10 Status in lxc package in Ubuntu: Triaged Status in network-manager package in Ubuntu: Triaged Status in lxc source package in Wily: Triaged Status in network-manager source package in Wily: Triaged Status in lxc source package in Xenial: Triaged Status in network-manager source package in Xenial: Triaged Bug description: After initial upgrade from Ubuntu 15.04 to Ubuntu 15.10 LXC worked for a couple days then failed. I found that the lxcbr0 interface no longer existed. I reported this on the lxc-user alias and about the same time several others had this happen to them also. Serge Hallyn requested I open a launchpad bug and post some info but before I could gather that info the system returned to normal (re lxcbr0 was back) the next day after the server was booted up again. note: at least one other person had this happen to them also (lxcbr0 came back by itself). Today, I booted this server again and ... again lxcbr0 was missing where it had been working last night. Below is all of the Info Serge Hallyn asked me to post. $ ifconfig lxcbr0 lxcbr0: error fetching interface information: Device not found $ journalctl -u lxc-net -- Logs begin at Tue 2015-11-03 07:25:22 EST, end at Tue 2015-11-03 10:02:08 EST Nov 03 07:25:48 server3 systemd[1]: Starting LXC network bridge setup... Nov 03 07:25:50 server3 lxc-net[913]: dnsmasq: failed to create listening socket Nov 03 07:25:50 server3 lxc-net[913]: Failed to setup lxc-net. Nov 03 07:25:50 server3 systemd[1]: Started LXC network bridge setup. root@server3:/home/bmullan# /usr/lib/x86_64-linux-gnu/lxc/lxc-net stop # note - execution just returns to command line root@server3:/home/bmullan# >> and lxcbr0 is still missing # ifconfig lxcbr0 lxcbr0: error fetching interface information: Device not found root@server3:/home/bmullan# /usr/lib/x86_64-linux-gnu/lxc/lxc-net start dnsmasq: failed to create listening socket for 10.0.3.1: Cannot assign requested address Failed to setup lxc-net. root@server3:/home/bmullan# $ uname -a Linux server3 4.2.0-16-generic #19-Ubuntu SMP Thu Oct 8 15:35:06 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 15.10 Release: 15.10 Codename: wily To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1512749/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp