[    2.141220] ip (252) used greatest stack depth: 12392 bytes left
[    2.627304] ip (282) used greatest stack depth: 12352 bytes left
[   18.924088] ip (1037) used greatest stack depth: 12344 bytes left
[   52.831930] netem: version 1.3
[   96.257346] ip (2481) used greatest stack depth: 12168 bytes left