[    1.883558] ip (249) used greatest stack depth: 12912 bytes left
[    1.953523] ip (254) used greatest stack depth: 12320 bytes left
[    9.646440] ip (922) used greatest stack depth: 12272 bytes left
[   47.876353] netem: version 1.3
[  326.614128] ip (4989) used greatest stack depth: 12160 bytes left
[  568.537795] tc (11916) used greatest stack depth: 11872 bytes left