[    1.346066] ip (216) used greatest stack depth: 12216 bytes left
[    2.649622] ip (576) used greatest stack depth: 11960 bytes left
[   16.793267] ip (1719) used greatest stack depth: 11936 bytes left
[   50.890741] netem: version 1.3
[  538.567637] pm_nl_ctl (24822) used greatest stack depth: 11784 bytes left