[    2.093972] ip (257) used greatest stack depth: 12392 bytes left
[    2.530420] ip (285) used greatest stack depth: 12360 bytes left
[    2.655924] ip (294) used greatest stack depth: 12344 bytes left
[   53.498451] netem: version 1.3
[  376.383764] ip (6358) used greatest stack depth: 12064 bytes left
[  592.507302] tc (12828) used greatest stack depth: 11936 bytes left