[    2.897398] ip (259) used greatest stack depth: 12392 bytes left
[    3.444989] ip (288) used greatest stack depth: 12344 bytes left
[   11.254283] ip (777) used greatest stack depth: 12240 bytes left
[   43.378031] ip (1567) used greatest stack depth: 12192 bytes left
[   59.636161] netem: version 1.3
[  605.631257] tc (12617) used greatest stack depth: 11936 bytes left