I had a 12.04, upgraded to the kernel of 12.10 (kernel v3.5.0-21-generic), and used it flawlessly for several month with LXC containers.
Very recently, I had a btrfs issue that made my update my kernel to v3.15.1-031501-generic. That's when my existing containers didn't catch anymore their IP on boot via DHCP. A tcpdump shows "bad udp cksum": 16:32:32.032975 IP (tos 0x0, ttl 64, id 25006, offset 0, flags [DF], proto UDP (17), length 71) ns3262489.ovh.net.61855 > 172.128.0.75.domain: [bad udp cksum 0xdbeb -> 0x0796!] 43449+ PTR? 75.0.128.172.in-addr.arpa. (43) For a good blog post around this issue and how to deal with it (not mine): http://colinnewell.wordpress.com/2013/12/18/lxc-networking/ -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to lxc in Ubuntu. https://bugs.launchpad.net/bugs/1204069 Title: lxc dhcp fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1204069/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs