[   12.266889] ip (215) used greatest stack depth: 12312 bytes left
[   12.390704] ip (256) used greatest stack depth: 12032 bytes left
[   53.156493] ip (3276) used greatest stack depth: 12008 bytes left
[   61.968817] netem: version 1.3
[  547.866735] pm_nl_ctl (24859) used greatest stack depth: 11856 bytes left