[    2.503078] ip (285) used greatest stack depth: 12360 bytes left
[    5.016443] ip (482) used greatest stack depth: 12344 bytes left
[   44.385352] ip (2006) used greatest stack depth: 12192 bytes left
[   52.706274] netem: version 1.3
[  327.488112] ip (4935) used greatest stack depth: 12160 bytes left