[    2.022129] ip (248) used greatest stack depth: 12392 bytes left
[    2.393394] ip (269) used greatest stack depth: 12360 bytes left
[    2.518614] ip (278) used greatest stack depth: 12352 bytes left
[    2.648477] ip (287) used greatest stack depth: 12344 bytes left
[   41.038350] ip (1587) used greatest stack depth: 12168 bytes left
[   53.393364] netem: version 1.3
[  185.244880] ip (3185) used greatest stack depth: 12072 bytes left