[    2.085485] ip (263) used greatest stack depth: 12600 bytes left
[    2.207067] ip (273) used greatest stack depth: 12488 bytes left
[    2.326745] ip (282) used greatest stack depth: 12360 bytes left
[    2.447812] ip (291) used greatest stack depth: 12352 bytes left
[    6.370814] ip (558) used greatest stack depth: 12344 bytes left
[   55.831186] netem: version 1.3
[   93.544573] ip (2501) used greatest stack depth: 12200 bytes left
[  605.693860] tc (11916) used greatest stack depth: 11936 bytes left