[    2.432559] ip (222) used greatest stack depth: 12216 bytes left
[    2.489956] ip (240) used greatest stack depth: 12008 bytes left
[    2.534209] ip (258) used greatest stack depth: 11960 bytes left
[   51.962890] netem: version 1.3
[  540.537676] pm_nl_ctl (24835) used greatest stack depth: 11864 bytes left