[  269.536381][ T2851] netem: version 1.3
[  406.960524][ T3645] iptables (3645) used greatest stack depth: 24272 bytes left
[ 1680.383344][T16857] tc (16857) used greatest stack depth: 23104 bytes left
[ 1888.123606][T19997] pm_nl_ctl (19997) used greatest stack depth: 22784 bytes left