[    2.245351] ip (272) used greatest stack depth: 12368 bytes left
[    3.733503] ip (374) used greatest stack depth: 12352 bytes left
[    3.849414] ip (383) used greatest stack depth: 12312 bytes left
[   53.163642] netem: version 1.3
[  322.674765] ip (4943) used greatest stack depth: 12072 bytes left