[    1.667097] ip (249) used greatest stack depth: 12912 bytes left
[    1.737367] ip (254) used greatest stack depth: 12384 bytes left
[    1.838163] ip (261) used greatest stack depth: 12336 bytes left
[    7.124416] ip (734) used greatest stack depth: 12256 bytes left
[   48.364684] ip (2104) used greatest stack depth: 12176 bytes left
[   48.622104] netem: version 1.3
[  583.031705] tc (11916) used greatest stack depth: 11872 bytes left