[    2.658149] ip (257) used greatest stack depth: 12264 bytes left
[    3.262894] ip (415) used greatest stack depth: 12232 bytes left
[   30.520909] ip (2423) used greatest stack depth: 12088 bytes left
[   52.506930] netem: version 1.3
[   67.019180] ip (4654) used greatest stack depth: 11960 bytes left
[   79.213773] ip (4845) used greatest stack depth: 11936 bytes left
[  500.196134] tc (20909) used greatest stack depth: 11760 bytes left