[    1.937631] ip (250) used greatest stack depth: 12912 bytes left
[    1.970957] ip (253) used greatest stack depth: 12392 bytes left
[    2.375186] ip (282) used greatest stack depth: 12360 bytes left
[    2.485319] ip (291) used greatest stack depth: 12344 bytes left
[   54.051423] netem: version 1.3
[  613.226172] tc (12612) used greatest stack depth: 11936 bytes left