[    2.715847] ip (286) used greatest stack depth: 12344 bytes left
[   55.681671] netem: version 1.3
[  275.678223] ip (4264) used greatest stack depth: 12304 bytes left
[  426.509414] ip (7269) used greatest stack depth: 12160 bytes left
[  623.160064] tc (12618) used greatest stack depth: 11896 bytes left