[    1.815724] ip (249) used greatest stack depth: 12368 bytes left
[    2.155617] ip (280) used greatest stack depth: 12320 bytes left
[   49.140251] netem: version 1.3
[  119.642624] ip (2743) used greatest stack depth: 12160 bytes left
[  558.402505] tc (11919) used greatest stack depth: 11872 bytes left