[    1.917856] ip (257) used greatest stack depth: 12392 bytes left
[    2.215356] ip (277) used greatest stack depth: 12360 bytes left
[    2.329046] ip (286) used greatest stack depth: 12344 bytes left
[    7.984604] ip (692) used greatest stack depth: 12192 bytes left
[   56.513731] netem: version 1.3
[  395.905188] ip (6566) used greatest stack depth: 12064 bytes left
[  611.830819] tc (12963) used greatest stack depth: 11936 bytes left