[    1.959741] ip (260) used greatest stack depth: 12336 bytes left
[   67.955157] netem: version 1.3
[  107.830418] ip (2614) used greatest stack depth: 12288 bytes left
[  344.008502] ip (5434) used greatest stack depth: 12208 bytes left
[  525.121125] ip (11160) used greatest stack depth: 11992 bytes left