[    1.398433] ip (223) used greatest stack depth: 12216 bytes left
[    1.462142] ip (240) used greatest stack depth: 12040 bytes left
[   17.166805] ip (1720) used greatest stack depth: 11960 bytes left
[   51.901919] netem: version 1.3
[  534.640181] pm_nl_ctl (24834) used greatest stack depth: 11856 bytes left