[    2.536147] ip (249) used greatest stack depth: 12392 bytes left
[    2.863745] ip (272) used greatest stack depth: 12360 bytes left
[    2.976986] ip (281) used greatest stack depth: 12344 bytes left
[   56.000088] netem: version 1.3
[  133.992030] ip (2910) used greatest stack depth: 12192 bytes left
[  613.113377] tc (12613) used greatest stack depth: 11896 bytes left