[    1.387098] ip (222) used greatest stack depth: 12216 bytes left
[    1.425402] ip (230) used greatest stack depth: 12152 bytes left
[    1.476139] ip (249) used greatest stack depth: 11960 bytes left
[   51.519782] netem: version 1.3
[  550.561742] pm_nl_ctl (24825) used greatest stack depth: 11856 bytes left