[    1.957475] ip (256) used greatest stack depth: 12400 bytes left
[    2.207404] ip (272) used greatest stack depth: 12368 bytes left
[    5.037196] ip (467) used greatest stack depth: 12352 bytes left
[   53.501700] netem: version 1.3
[  518.078650] ip (10256) used greatest stack depth: 12312 bytes left