[    1.829637] ip (248) used greatest stack depth: 12392 bytes left
[    2.040056] ip (260) used greatest stack depth: 12344 bytes left
[    9.343028] ip (847) used greatest stack depth: 12296 bytes left
[   51.598241] netem: version 1.3
[  540.461069] ip (10841) used greatest stack depth: 12184 bytes left
[  588.586166] tc (11902) used greatest stack depth: 11872 bytes left