[    2.357564] ip (287) used greatest stack depth: 12360 bytes left
[    2.466251] ip (296) used greatest stack depth: 12344 bytes left
[   11.798978] ip (995) used greatest stack depth: 12304 bytes left
[   53.823878] netem: version 1.3
[   70.436933] ip (2510) used greatest stack depth: 12192 bytes left