[    1.839457] ip (278) used greatest stack depth: 12320 bytes left
[   46.153213] netem: version 1.3
[  111.999645] ip (2725) used greatest stack depth: 12288 bytes left
[  501.099531] ip (10840) used greatest stack depth: 12272 bytes left
[  547.958015] tc (11916) used greatest stack depth: 11872 bytes left