[    2.240937] ip (258) used greatest stack depth: 12392 bytes left
[    2.560234] ip (277) used greatest stack depth: 12360 bytes left
[    2.664542] ip (286) used greatest stack depth: 12344 bytes left
[    9.874590] ip (785) used greatest stack depth: 12192 bytes left
[   55.082030] netem: version 1.3