[   55.949974] netem: version 1.3
[  108.499487] ip (3471) used greatest stack depth: 12192 bytes left
[  603.519973] ip (14904) used greatest stack depth: 12160 bytes left
[  622.024003] tc (15592) used greatest stack depth: 11936 bytes left
[  694.290047] pm_nl_ctl (18727) used greatest stack depth: 11832 bytes left