Alexandre, please see my last comment, that links to a test kernel PPA with EXACTLY that upstream commit, 751eb6b6042a596b0080967c1a529a9fe98dac1d ("ipv6: addrconf: fix dev refcont leak when DAD failed")
If you can reproduce this, please test with the PPA and report if it fixes the problem. -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs