[    2.518947] ip (217) used greatest stack depth: 12216 bytes left
[    3.837539] ip (578) used greatest stack depth: 11992 bytes left
[   52.049676] netem: version 1.3
[   61.969947] ip (4486) used greatest stack depth: 11936 bytes left
[  571.459265] pm_nl_ctl (25036) used greatest stack depth: 11864 bytes left