[    2.367468] ip (267) used greatest stack depth: 12648 bytes left
[    2.498006] ip (276) used greatest stack depth: 12592 bytes left
[    2.626721] ip (285) used greatest stack depth: 12344 bytes left
[   55.583487] netem: version 1.3
[  396.571216] ip (6984) used greatest stack depth: 12304 bytes left
[  598.258392] tc (12617) used greatest stack depth: 11936 bytes left