[  625.678424][ T3390] netdevsim netdevsim1337: Failed to register fib notifier
[  679.223574][ T3846] netdevsim netdevsim1337: Failed to register fib notifier
[  711.877072][ T4122] netdevsim netdevsim1337: Failed to register fib notifier
[  766.333198][ T4576] netdevsim netdevsim1337: Failed to register fib notifier