[    2.197267] ip (267) used greatest stack depth: 12712 bytes left
[    2.276316] ip (274) used greatest stack depth: 12488 bytes left
[    2.404153] ip (285) used greatest stack depth: 12360 bytes left
[    5.108386] ip (492) used greatest stack depth: 12344 bytes left
[   18.766090] ip (1086) used greatest stack depth: 12192 bytes left
[   54.835351] netem: version 1.3
[  587.482014] ip (12193) used greatest stack depth: 12032 bytes left
[  693.411762] kworker/2:2 (70) used greatest stack depth: 11912 bytes left