[    1.864722] ip (248) used greatest stack depth: 12456 bytes left
[    1.956411] ip (254) used greatest stack depth: 12392 bytes left
[    2.045297] ip (260) used greatest stack depth: 12344 bytes left
[   51.644912] netem: version 1.3
[  394.392515] ip (6801) used greatest stack depth: 12280 bytes left
[  660.534688] kworker/dying (1652) used greatest stack depth: 11960 bytes left