[    2.137326] ip (272) used greatest stack depth: 12360 bytes left
[    2.327777] ip (290) used greatest stack depth: 12352 bytes left
[    6.823287] ip (576) used greatest stack depth: 12344 bytes left
[   40.806942] ip (1583) used greatest stack depth: 12312 bytes left
[   55.076474] netem: version 1.3
[  317.709028] ip (4998) used greatest stack depth: 12200 bytes left