[    1.749115] ip (255) used greatest stack depth: 12328 bytes left
[   42.729371] ip (1875) used greatest stack depth: 12176 bytes left
[   53.351871] netem: version 1.3
[  496.382175] ip (9654) used greatest stack depth: 12144 bytes left
[  583.724727] tc (12614) used greatest stack depth: 11920 bytes left