[    2.494529] ip (223) used greatest stack depth: 12216 bytes left
[   29.009874] ip (2069) used greatest stack depth: 12168 bytes left
[   52.120781] netem: version 1.3
[   60.188060] ip (4488) used greatest stack depth: 11944 bytes left
[  552.970700] pm_nl_ctl (24819) used greatest stack depth: 11784 bytes left