[    2.167204] ip (258) used greatest stack depth: 12392 bytes left
[    2.476873] ip (277) used greatest stack depth: 12344 bytes left
[    8.111365] ip (692) used greatest stack depth: 12160 bytes left
[   52.824574] netem: version 1.3
[   92.476643] ip (2634) used greatest stack depth: 12064 bytes left