[    1.916633] ip (257) used greatest stack depth: 12320 bytes left
[    2.319457] ip (289) used greatest stack depth: 12272 bytes left
[   24.637985] ip (1413) used greatest stack depth: 12248 bytes left
[   55.847851] netem: version 1.3
[  629.695351] tc (15596) used greatest stack depth: 11936 bytes left
[  693.307737] kworker/0:1 (9) used greatest stack depth: 11808 bytes left