I have a new debug kernel building (will take a few hours as usual);
please test when you have a chance. New kernel is still for Artful and
version is linux-4.13.0-32.35+hf1711407v20180202b1.
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unregister_netdevice: waiting for lo to become free
Status in linux package in Ubuntu:
Status in linux source package in Trusty:
Status in linux source package in Xenial:
Status in linux source package in Zesty:
Status in linux source package in Artful:
Status in linux source package in Bionic:
This is a "continuation" of bug 1403152, as that bug has been marked
"fix released" and recent reports of failure may (or may not) be a new
bug. Any further reports of the problem should please be reported
here instead of that bug.
When shutting down and starting containers the container network
namespace may experience a dst reference counting leak which results
in this message repeated in the logs:
unregister_netdevice: waiting for lo to become free. Usage count =
This can cause issues when trying to create net network namespace and
thus block a user from creating new containers.
See comment 16, reproducer provided at https://github.com/fho/docker-
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