[    1.770073] ip (248) used greatest stack depth: 12368 bytes left
[    2.050438] ip (270) used greatest stack depth: 12320 bytes left
[    3.136870] ip (360) used greatest stack depth: 12224 bytes left
[   49.537628] netem: version 1.3
[   67.682426] ip (2361) used greatest stack depth: 12048 bytes left
[  582.597179] tc (11917) used greatest stack depth: 11872 bytes left