[    2.569545] ip (229) used greatest stack depth: 12424 bytes left
[    2.637897] ip (257) used greatest stack depth: 12232 bytes left
[   23.555834] ip (1884) used greatest stack depth: 11960 bytes left
[   52.051131] netem: version 1.3
[  550.096613] pm_nl_ctl (24682) used greatest stack depth: 11864 bytes left