[   33.620462][  T280] ip (280) used greatest stack depth: 23040 bytes left
[   61.752939][  T517] netdevsim netdevsim1337: Failed to register fib notifier
[  114.576784][  T971] netdevsim netdevsim1337: Failed to register fib notifier
[  146.266904][ T1246] netdevsim netdevsim1337: Failed to register fib notifier
[  198.821035][ T1700] netdevsim netdevsim1337: Failed to register fib notifier