[    2.194288] ip (256) used greatest stack depth: 12392 bytes left
[    2.606933] ip (287) used greatest stack depth: 12360 bytes left
[    4.119624] ip (401) used greatest stack depth: 12344 bytes left
[    9.887608] ip (825) used greatest stack depth: 12288 bytes left
[   57.743304] netem: version 1.3
[  621.113754] tc (13805) used greatest stack depth: 11936 bytes left