[   52.043263] netem: version 1.3
[  319.900166] ip (6646) used greatest stack depth: 12136 bytes left
[  510.099314] ip (12831) used greatest stack depth: 12072 bytes left
[  588.888001] tc (16944) used greatest stack depth: 11920 bytes left
[  648.669496] pm_nl_ctl (20246) used greatest stack depth: 11856 bytes left