> I have just reproduced it using the previous #43+hf1711407v20180412b2" kernel:
Excellent. And just to clarify again, I do *not* expect the kernel to fix/avoid the problem - I fully expect it to happen - the change in these kernels is strictly to make sure that the system is still usable after the problem happens. Can you verify that after reproducing? I assume that before, when you reproduced the problem, you were no longer able to create new (or destroy old) containers (i.e., new net namespaces) - that should now be fixed, and you should be able to keep creating new containers with no issues. > The seconds seems to be rather milliseconds. yep sorry, kernel building now should fix that to print seconds instead of ms. > Waiting here for the newest kernel and will try it right away. thanks! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1711407 Title: unregister_netdevice: waiting for lo to become free Status in linux package in Ubuntu: In Progress Status in linux source package in Trusty: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Zesty: Won't Fix Status in linux source package in Artful: In Progress Status in linux source package in Bionic: In Progress Bug description: 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. -- [Impact] 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 = 1 This can cause issues when trying to create net network namespace and thus block a user from creating new containers. [Test Case] See comment 16, reproducer provided at https://github.com/fho/docker- samba-loop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1711407/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
