[    3.035687] ip (282) used greatest stack depth: 12368 bytes left
[    3.168727] ip (291) used greatest stack depth: 12352 bytes left
[    4.698173] ip (381) used greatest stack depth: 12312 bytes left
[   58.261035] netem: version 1.3
[  511.893210] ip (9913) used greatest stack depth: 12200 bytes left