Ubuntu
linux package

  1. Bionic (18.04)
  2. Bug #1711407
  3. Comment #80

Comment 80 for bug 1711407

Revision history for this message
Gonzalo Servat (gservat) wrote :

Hi Dan,

We run a bunch of instances both on AWS and GCP, and we run a significant number of containers on both. We've only ever seen this problem on GCP and never on AWS (it's baffling!). The kernels are as-close-as-possible and the rest (Ubuntu version / Docker version / etc) are identical. To answer your questions:

-what release are you using (trusty/xenial/zesty)?

Xenial

-what kernel version are you using?

4.13.0-1008-gcp

-do you have specific steps to reproduce the problem?

Unfortunately we don't. It just happens on its own after 1/2 weeks. The following shows in dmesg:

[1015401.681728] unregister_netdevice: waiting for veth251ecfe to become free. Usage count = 1
[1015411.761772] unregister_netdevice: waiting for veth251ecfe to become free. Usage count = 1
[1015421.841740] unregister_netdevice: waiting for veth251ecfe to become free. Usage count = 1
[1015431.953729] unregister_netdevice: waiting for veth251ecfe to become free. Usage count = 1

etc etc

We've tried a few things including upgrading kernel and disabling IPv6 to no avail.