[    1.997766] ip (275) used greatest stack depth: 12360 bytes left
[    2.174828] ip (293) used greatest stack depth: 12184 bytes left
[   75.949690] netem: version 1.3
[  420.062710] ip (14064) used greatest stack depth: 12120 bytes left
[  618.789715] tc (24873) used greatest stack depth: 11880 bytes left