[    2.461677] ip (217) used greatest stack depth: 12216 bytes left
[   17.835126] ip (1692) used greatest stack depth: 12008 bytes left
[   52.006183] netem: version 1.3
[   84.790558] ip (5033) used greatest stack depth: 11960 bytes left
[  541.393625] pm_nl_ctl (24823) used greatest stack depth: 11864 bytes left