[    1.851239] ip (254) used greatest stack depth: 12912 bytes left
[    1.884065] ip (257) used greatest stack depth: 12632 bytes left
[    2.054368] ip (267) used greatest stack depth: 12544 bytes left
[    2.158614] ip (276) used greatest stack depth: 12360 bytes left
[    2.366200] ip (294) used greatest stack depth: 12344 bytes left
[    3.390590] ip (373) used greatest stack depth: 12160 bytes left
[   53.791051] netem: version 1.3
[  582.205961] tc (12617) used greatest stack depth: 11936 bytes left