[    2.011800] ip (255) used greatest stack depth: 12392 bytes left
[    2.314321] ip (276) used greatest stack depth: 12360 bytes left
[    3.804239] ip (382) used greatest stack depth: 12344 bytes left
[   44.236479] ip (1904) used greatest stack depth: 12304 bytes left
[   54.794565] netem: version 1.3