[    1.534188] ip (250) used greatest stack depth: 12248 bytes left
[    1.559963] ip (259) used greatest stack depth: 12008 bytes left
[   52.031452] netem: version 1.3
[   74.566149] ip (4838) used greatest stack depth: 11960 bytes left
[  544.525600] pm_nl_ctl (24826) used greatest stack depth: 11856 bytes left