[  622.304282][ T3390] netdevsim netdevsim1337: Failed to register fib notifier
[  676.596402][ T3845] netdevsim netdevsim1337: Failed to register fib notifier
[  709.711547][ T4122] netdevsim netdevsim1337: Failed to register fib notifier
[  764.859395][ T4577] netdevsim netdevsim1337: Failed to register fib notifier