[  618.144780][ T3390] netdevsim netdevsim1337: Failed to register fib notifier
[  671.001745][ T3844] netdevsim netdevsim1337: Failed to register fib notifier
[  703.320196][ T4119] netdevsim netdevsim1337: Failed to register fib notifier
[  756.844806][ T4573] netdevsim netdevsim1337: Failed to register fib notifier