[    1.634923] ip (254) used greatest stack depth: 12168 bytes left
[   76.603697] netem: version 1.3
[  269.222900] ip (8874) used greatest stack depth: 12152 bytes left
[  484.702073] ip (16665) used greatest stack depth: 12120 bytes left
[  615.829375] tc (24872) used greatest stack depth: 11880 bytes left