[    1.810267] ip (251) used greatest stack depth: 12392 bytes left
[    2.118049] ip (273) used greatest stack depth: 12360 bytes left
[    2.222589] ip (282) used greatest stack depth: 12344 bytes left
[   51.938897] netem: version 1.3
[   71.496651] ip (2487) used greatest stack depth: 12192 bytes left
[   89.408155] ip (2622) used greatest stack depth: 12160 bytes left
[  290.406276] ip (4527) used greatest stack depth: 12064 bytes left
[  605.100706] tc (12613) used greatest stack depth: 11936 bytes left