[    1.498115] ip (248) used greatest stack depth: 12368 bytes left
[    1.691988] ip (269) used greatest stack depth: 12320 bytes left
[   45.905299] netem: version 1.3
[   65.135529] ip (2356) used greatest stack depth: 12272 bytes left
[  446.511788] ip (8036) used greatest stack depth: 12160 bytes left
[  550.732583] tc (11918) used greatest stack depth: 11872 bytes left