[    2.275538] ip (225) used greatest stack depth: 12296 bytes left
[    3.820003] ip (706) used greatest stack depth: 12096 bytes left
[   27.986414] ip (2065) used greatest stack depth: 12056 bytes left
[   49.929745] netem: version 1.3
[  514.705471] pm_nl_ctl (24843) used greatest stack depth: 11824 bytes left