[    2.077292] ip (268) used greatest stack depth: 12600 bytes left
[    2.205466] ip (277) used greatest stack depth: 12488 bytes left
[    2.299073] ip (284) used greatest stack depth: 12472 bytes left
[    2.325291] ip (286) used greatest stack depth: 12360 bytes left
[    2.446816] ip (295) used greatest stack depth: 12344 bytes left
[   41.996019] ip (1795) used greatest stack depth: 12304 bytes left
[   55.457276] netem: version 1.3
[   64.236779] ip (2500) used greatest stack depth: 12192 bytes left