[    1.721792] ip (249) used greatest stack depth: 12368 bytes left
[    1.964865] ip (270) used greatest stack depth: 12320 bytes left
[   38.318504] ip (1801) used greatest stack depth: 12224 bytes left
[   46.813490] ip (2102) used greatest stack depth: 12048 bytes left
[   47.134381] netem: version 1.3