[    2.548073] ip (223) used greatest stack depth: 12216 bytes left
[    2.629367] ip (250) used greatest stack depth: 12008 bytes left
[   29.740423] ip (2262) used greatest stack depth: 11960 bytes left
[   52.071994] netem: version 1.3
[  562.292864] pm_nl_ctl (24835) used greatest stack depth: 11864 bytes left