[    1.577594] ip (267) used greatest stack depth: 12520 bytes left
[    1.643659] ip (277) used greatest stack depth: 12472 bytes left
[    1.773757] ip (295) used greatest stack depth: 12168 bytes left
[   72.625994] netem: version 1.3
[  631.239641] tc (24870) used greatest stack depth: 11864 bytes left