[ 1390.501185] unregister_netdevice: waiting for lo to become free. Usage count = 0
[ 1400.741184] unregister_netdevice: waiting for lo to become free. Usage count = 0
[ 1410.981185] unregister_netdevice: waiting for lo to become free. Usage count = 0
[ 1421.221184] unregister_netdevice: waiting for lo to become free. Usage count = 0
[ 1431.460205] unregister_netdevice: waiting for lo to become free. Usage count = 0
[ 1441.701185] unregister_netdevice: waiting for lo to become free. Usage count = 0