[    1.945329] ip (250) used greatest stack depth: 12632 bytes left
[    2.030337] ip (255) used greatest stack depth: 12392 bytes left
[    2.387619] ip (280) used greatest stack depth: 12360 bytes left
[    4.785195] ip (463) used greatest stack depth: 12344 bytes left
[   53.148418] netem: version 1.3