[   30.979566][  T254] ip (254) used greatest stack depth: 24256 bytes left
[   31.131276][  T255] ip (255) used greatest stack depth: 23760 bytes left
[   33.745159][  T279] ip (279) used greatest stack depth: 23488 bytes left
[   63.562654][  T515] netdevsim netdevsim1337: Failed to register fib notifier
[  118.732987][  T969] netdevsim netdevsim1337: Failed to register fib notifier
[  150.644830][ T1244] netdevsim netdevsim1337: Failed to register fib notifier
[  202.801294][ T1698] netdevsim netdevsim1337: Failed to register fib notifier