[    2.116195] ip (189) used greatest stack depth: 12256 bytes left
[    2.204732] ip (224) used greatest stack depth: 12072 bytes left
[   50.104536] netem: version 1.3
[   65.570926] ip (4640) used greatest stack depth: 12048 bytes left
[  534.306752] pm_nl_ctl (24826) used greatest stack depth: 11864 bytes left