It never happened again (and may have been a misuse involving immortal sudo subprocesses but I'm blurry on the details), marking invalid but fixed released may be correct as well.
** Changed in: lxc (Ubuntu) Status: Expired => Invalid -- 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/1261338 Title: lxc-stop and even lxc-stop -k can hang To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1261338/+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