[    2.282850] ip (278) used greatest stack depth: 12360 bytes left
[    3.703679] ip (384) used greatest stack depth: 12344 bytes left
[   43.567298] ip (1777) used greatest stack depth: 12064 bytes left
[   55.851396] netem: version 1.3
[  616.258233] tc (12618) used greatest stack depth: 11936 bytes left