[    2.109863] ip (267) used greatest stack depth: 12560 bytes left
[    2.224396] ip (277) used greatest stack depth: 12360 bytes left
[    2.337223] ip (286) used greatest stack depth: 12344 bytes left
[   52.597475] netem: version 1.3
[   68.742056] ip (2508) used greatest stack depth: 12304 bytes left
[  581.733270] tc (12617) used greatest stack depth: 11936 bytes left