[    6.132845] ip (650) used greatest stack depth: 12176 bytes left
[    9.238651] ip (922) used greatest stack depth: 12064 bytes left
[   49.676871] netem: version 1.3
[  313.118574] ip (4779) used greatest stack depth: 12048 bytes left
[  576.984350] tc (11905) used greatest stack depth: 11872 bytes left