[    2.223548] ip (268) used greatest stack depth: 12528 bytes left
[    2.338582] ip (278) used greatest stack depth: 12472 bytes left
[    2.456061] ip (287) used greatest stack depth: 12328 bytes left
[   10.627357] ip (869) used greatest stack depth: 12176 bytes left
[   55.683610] netem: version 1.3
[  590.885241] tc (12618) used greatest stack depth: 11920 bytes left