[    1.882549] ip (266) used greatest stack depth: 12360 bytes left
[    2.119243] ip (293) used greatest stack depth: 12184 bytes left
[   76.333220] netem: version 1.3
[  103.672107] ip (6015) used greatest stack depth: 12120 bytes left
[  600.305481] tc (24873) used greatest stack depth: 11880 bytes left