[    2.473092] ip (221) used greatest stack depth: 12168 bytes left
[    2.526294] ip (239) used greatest stack depth: 12008 bytes left
[   51.504231] ip (4102) used greatest stack depth: 11920 bytes left
[   52.228098] netem: version 1.3
[  530.434223] pm_nl_ctl (24832) used greatest stack depth: 11784 bytes left