[    1.950221] ip (251) used greatest stack depth: 12400 bytes left
[    2.376726] ip (281) used greatest stack depth: 12368 bytes left
[    5.155031] ip (464) used greatest stack depth: 12352 bytes left
[   52.770035] netem: version 1.3
[   67.787940] ip (2376) used greatest stack depth: 12296 bytes left
[  634.974892] ip (14563) used greatest stack depth: 12168 bytes left