[    2.566454] ip (215) used greatest stack depth: 12312 bytes left
[    2.686830] ip (255) used greatest stack depth: 12040 bytes left
[    5.625074] ip (1042) used greatest stack depth: 12032 bytes left
[   52.670330] netem: version 1.3
[  562.905176] pm_nl_ctl (24677) used greatest stack depth: 11856 bytes left