[    2.275052] ip (256) used greatest stack depth: 12392 bytes left
[    2.739598] ip (284) used greatest stack depth: 12360 bytes left
[    2.858369] ip (293) used greatest stack depth: 12344 bytes left
[   60.577795] netem: version 1.3
[  501.519098] ip (9871) used greatest stack depth: 12064 bytes left