[   59.140273][  T517] netdevsim netdevsim1337: Failed to register fib notifier
[  112.409020][  T971] netdevsim netdevsim1337: Failed to register fib notifier
[  144.078769][ T1246] netdevsim netdevsim1337: Failed to register fib notifier
[  197.308672][ T1700] netdevsim netdevsim1337: Failed to register fib notifier