[    1.547457] ip (250) used greatest stack depth: 12368 bytes left
[    1.923909] ip (290) used greatest stack depth: 12320 bytes left
[   36.111168] ip (1684) used greatest stack depth: 12128 bytes left
[   46.500826] netem: version 1.3
[  502.278189] ip (10947) used greatest stack depth: 12032 bytes left