[    1.639249] ip (249) used greatest stack depth: 12368 bytes left
[    1.955553] ip (279) used greatest stack depth: 12320 bytes left
[    7.827505] ip (841) used greatest stack depth: 12048 bytes left
[   46.131966] netem: version 1.3
[   74.132110] ip (2467) used greatest stack depth: 12016 bytes left