[    1.423658] ip (253) used greatest stack depth: 12424 bytes left
[    1.467622] ip (258) used greatest stack depth: 12232 bytes left
[    1.709096] ip (285) used greatest stack depth: 12200 bytes left
[    2.510393] ip (384) used greatest stack depth: 12120 bytes left
[   34.361895] ip (1870) used greatest stack depth: 11944 bytes left
[   49.313449] netem: version 1.3
[  559.625099] tc (16944) used greatest stack depth: 11912 bytes left
[  615.704183] pm_nl_ctl (20244) used greatest stack depth: 11784 bytes left