[    1.847725] ip (254) used greatest stack depth: 12624 bytes left
[    1.939796] ip (261) used greatest stack depth: 12336 bytes left
[   52.024951] netem: version 1.3
[  252.615014] ip (4008) used greatest stack depth: 12240 bytes left
[  409.979153] ip (7161) used greatest stack depth: 12176 bytes left
[  569.954524] tc (11911) used greatest stack depth: 11832 bytes left