[    1.390779] ip (222) used greatest stack depth: 12216 bytes left
[    2.654818] ip (559) used greatest stack depth: 11960 bytes left
[   51.145522] netem: version 1.3
[   90.806260] ip (5034) used greatest stack depth: 11936 bytes left
[  543.405562] pm_nl_ctl (24832) used greatest stack depth: 11856 bytes left