[    1.882058] ip (254) used greatest stack depth: 12392 bytes left
[    2.321399] ip (285) used greatest stack depth: 12344 bytes left
[    4.667941] ip (473) used greatest stack depth: 12064 bytes left
[   54.152897] netem: version 1.3
[  372.654079] ip (6440) used greatest stack depth: 12032 bytes left
[  584.906557] tc (12617) used greatest stack depth: 11936 bytes left