[    2.088783] ip (279) used greatest stack depth: 12320 bytes left
[   47.167518] netem: version 1.3
[  107.552551] ip (2847) used greatest stack depth: 12272 bytes left
[  533.521671] ip (11493) used greatest stack depth: 12248 bytes left
[  593.798213] ip (14117) used greatest stack depth: 12160 bytes left