[    2.300496] ip (256) used greatest stack depth: 12392 bytes left
[    3.022753] ip (296) used greatest stack depth: 12344 bytes left
[   15.772379] ip (1174) used greatest stack depth: 12288 bytes left
[   48.941807] ip (2149) used greatest stack depth: 12160 bytes left
[   64.174229] netem: version 1.3
[  686.530991] pm_nl_ctl (18728) used greatest stack depth: 11832 bytes left