[    1.850714] ip (254) used greatest stack depth: 12368 bytes left
[    2.104306] ip (279) used greatest stack depth: 12320 bytes left
[   38.651303] ip (1677) used greatest stack depth: 12160 bytes left
[   49.636637] netem: version 1.3
[   85.313209] ip (2471) used greatest stack depth: 12048 bytes left
[  556.323691] tc (11913) used greatest stack depth: 11872 bytes left