Comment 36 for bug 1711407

> So if there is something to test or debug, I would be happy to help fixing this issue.

yes, I'm hoping to have a kernel build with some added debug to track/list exactly what socket(s) are still holding lo device references when the container is killed/shutdown, so testing with that would help clarify the specifics of this problem, once I have the debug kernel ready and built. I will update this bug once I have something ready to test.

> Also already tried the latest kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/:

and I assume that did not help, correct? This problem still exists upstream (assuming we're all encountering the same problem that I'm debugging) and will require an upstream patch.