[    2.044565] ip (263) used greatest stack depth: 12584 bytes left
[    2.151126] ip (272) used greatest stack depth: 12512 bytes left
[    2.255648] ip (281) used greatest stack depth: 12328 bytes left
[   53.591118] netem: version 1.3
[  130.694672] ip (2910) used greatest stack depth: 12288 bytes left
[  612.681118] tc (12613) used greatest stack depth: 11920 bytes left