[    1.991871] ip (250) used greatest stack depth: 12632 bytes left
[    2.075641] ip (255) used greatest stack depth: 12392 bytes left
[    2.438109] ip (280) used greatest stack depth: 12360 bytes left
[    3.907515] ip (382) used greatest stack depth: 12352 bytes left
[   11.555884] ip (944) used greatest stack depth: 12344 bytes left
[   54.058183] netem: version 1.3
[  243.931084] ip (3862) used greatest stack depth: 12072 bytes left