[    1.970994] ip (250) used greatest stack depth: 12912 bytes left
[    2.060492] ip (255) used greatest stack depth: 12400 bytes left
[    2.430590] ip (280) used greatest stack depth: 12368 bytes left
[    5.084080] ip (472) used greatest stack depth: 12352 bytes left
[   53.551658] netem: version 1.3
[  349.613516] ip (5646) used greatest stack depth: 12312 bytes left