[  192.286545] netdevsim netdevsim1337: Failed to register fib notifier
[  198.487534] netdevsim netdevsim1337: Failed to register fib notifier
[  202.293562] netdevsim netdevsim1337: Failed to register fib notifier
[  208.112128] ip (7650) used greatest stack depth: 12120 bytes left
[  208.531554] netdevsim netdevsim1337: Failed to register fib notifier