[    1.802224] ip (256) used greatest stack depth: 12304 bytes left
[    2.093028] ip (278) used greatest stack depth: 12272 bytes left
[   57.308348] netem: version 1.3
[   66.035186] ip (3020) used greatest stack depth: 12248 bytes left
[  622.389222] tc (15593) used greatest stack depth: 11896 bytes left