[    2.357158] ip (285) used greatest stack depth: 12360 bytes left
[    2.467847] ip (294) used greatest stack depth: 12344 bytes left
[   12.935791] ip (986) used greatest stack depth: 12304 bytes left
[   55.755801] netem: version 1.3
[  438.423742] ip (7967) used greatest stack depth: 12288 bytes left
[  512.790044] ip (9960) used greatest stack depth: 12064 bytes left