[    2.036119] ip (251) used greatest stack depth: 12384 bytes left
[    2.385572] ip (272) used greatest stack depth: 12352 bytes left
[    2.502448] ip (281) used greatest stack depth: 12336 bytes left
[   38.359863] ip (1496) used greatest stack depth: 12296 bytes left
[   52.403448] netem: version 1.3
[  626.092937] ip (13326) used greatest stack depth: 12232 bytes left