[    1.678150] ip (249) used greatest stack depth: 12368 bytes left
[    1.988702] ip (279) used greatest stack depth: 12320 bytes left
[   48.470070] netem: version 1.3
[  394.196459] ip (6694) used greatest stack depth: 12272 bytes left
[  427.436278] ip (7369) used greatest stack depth: 12160 bytes left