Openstack network node becomes unusable with "unregister_netdevice: waiting for qr-XXXXXXXX-XX to become free. Usage count = 1" message visible in the system logs

Solution In Progress - Updated -

Issue

  • An Openstack network node stops forwarding traffic for floating IPs and the following message referring to a qr-* interface is seen repeated in the logs.

    kernel: unregister_netdevice: waiting for qr-12345678-ab to become free. Usage count = 1

Environment

  • Red Hat Openstack
  • kernel-3.10.0-1062.el7 series

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content