[    1.963804] ip (259) used greatest stack depth: 12344 bytes left
[    2.485723] ip (296) used greatest stack depth: 12160 bytes left
[   55.968229] netem: version 1.3
[   62.615908] ip (2366) used greatest stack depth: 12064 bytes left
[  693.551785] kworker/2:1 (51) used greatest stack depth: 11960 bytes left