[    2.211194] ip (258) used greatest stack depth: 12344 bytes left
[   30.591225] ip (1218) used greatest stack depth: 12296 bytes left
[   52.549517] netem: version 1.3
[   70.195630] ip (2378) used greatest stack depth: 12168 bytes left
[  564.100337] tc (11918) used greatest stack depth: 11872 bytes left