[    1.872017] ip (248) used greatest stack depth: 12384 bytes left
[    2.067971] ip (260) used greatest stack depth: 12336 bytes left
[   50.745400] netem: version 1.3
[   75.925750] ip (2470) used greatest stack depth: 12176 bytes left
[  546.801319] ip (11652) used greatest stack depth: 12160 bytes left