unregister_netdevice: waiting for netdevsim3 to become free. Usage count = 2 netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim1 netdevsim0: renamed from eth0 netdevsim netdevsim1 netdevsim1: renamed from eth1 netdevsim netdevsim1 netdevsim2: renamed from eth2 netdevsim netdevsim1 netdevsim3: renamed from eth3