[  801.456071][ T6396] netdevsim netdevsim1337: Failed to register fib notifier
[  854.969126][ T6850] netdevsim netdevsim1337: Failed to register fib notifier
[  887.141278][ T7125] netdevsim netdevsim1337: Failed to register fib notifier
[  942.534481][ T7579] netdevsim netdevsim1337: Failed to register fib notifier