[   12.295865] ip (220) used greatest stack depth: 12272 bytes left
[   12.375968] ip (247) used greatest stack depth: 12080 bytes left
[   14.694589] ip (898) used greatest stack depth: 12072 bytes left
[   38.603613] ip (2073) used greatest stack depth: 12048 bytes left
[   62.231035] netem: version 1.3
[  553.567426] pm_nl_ctl (24854) used greatest stack depth: 11864 bytes left