[    1.836934] ip (249) used greatest stack depth: 12384 bytes left
[    2.041396] ip (261) used greatest stack depth: 12336 bytes left
[    4.600098] ip (457) used greatest stack depth: 12288 bytes left
[   50.193166] netem: version 1.3
[  491.431286] ip (8624) used greatest stack depth: 12064 bytes left
[  582.425907] tc (11909) used greatest stack depth: 11872 bytes left