[    2.055529] ip (248) used greatest stack depth: 12336 bytes left
[    5.892103] ip (541) used greatest stack depth: 12176 bytes left
[   53.277797] netem: version 1.3
[  486.692534] ip (10133) used greatest stack depth: 12064 bytes left
[  552.487184] tc (11919) used greatest stack depth: 11872 bytes left