[  622.715108][ T3390] netdevsim netdevsim1337: Failed to register fib notifier
[  676.581957][ T3846] netdevsim netdevsim1337: Failed to register fib notifier
[  709.173145][ T4122] netdevsim netdevsim1337: Failed to register fib notifier
[  762.749893][ T4577] netdevsim netdevsim1337: Failed to register fib notifier