[    2.209129] ip (261) used greatest stack depth: 12336 bytes left
[    3.985114] ip (379) used greatest stack depth: 12288 bytes left
[   54.358815] netem: version 1.3
[  306.092368] ip (4532) used greatest stack depth: 12176 bytes left
[  509.906275] ip (9440) used greatest stack depth: 12144 bytes left