[    2.054296] ip (258) used greatest stack depth: 12392 bytes left
[    2.489032] ip (287) used greatest stack depth: 12344 bytes left
[   55.359759] netem: version 1.3
[  589.865375] ip (12330) used greatest stack depth: 12064 bytes left
[  594.185282] tc (12618) used greatest stack depth: 11936 bytes left