[    1.359245] ip (231) used greatest stack depth: 12488 bytes left
[    1.372877] ip (237) used greatest stack depth: 12456 bytes left
[    1.401184] ip (249) used greatest stack depth: 12408 bytes left
[    1.422369] ip (258) used greatest stack depth: 12232 bytes left
[    4.825964] ip (1226) used greatest stack depth: 12216 bytes left
[   16.557012] ip (1712) used greatest stack depth: 11960 bytes left
[   50.465646] netem: version 1.3
[  529.514427] pm_nl_ctl (24827) used greatest stack depth: 11856 bytes left