[    2.532807] ip (213) used greatest stack depth: 12312 bytes left
[    3.842556] ip (564) used greatest stack depth: 12040 bytes left
[   12.473572] ip (1534) used greatest stack depth: 12032 bytes left
[   52.282447] netem: version 1.3
[  526.231492] pm_nl_ctl (24666) used greatest stack depth: 11856 bytes left