[    2.094928] ip (281) used greatest stack depth: 12320 bytes left
[   46.567500] netem: version 1.3
[   65.114905] ip (2380) used greatest stack depth: 12272 bytes left
[  354.093580] ip (5735) used greatest stack depth: 12128 bytes left
[  485.290782] ip (9899) used greatest stack depth: 12032 bytes left