[    2.085335] ip (275) used greatest stack depth: 12360 bytes left
[    2.983904] ip (348) used greatest stack depth: 12344 bytes left
[   46.572680] ip (2099) used greatest stack depth: 12064 bytes left
[   53.630180] netem: version 1.3
[  618.811229] tc (12615) used greatest stack depth: 11936 bytes left