[    1.688462] ip (250) used greatest stack depth: 12592 bytes left
[    1.916889] ip (270) used greatest stack depth: 12448 bytes left
[    1.935563] ip (272) used greatest stack depth: 12320 bytes left
[   33.737767] ip (1377) used greatest stack depth: 12272 bytes left
[   47.574058] netem: version 1.3
[  385.316715] ip (7233) used greatest stack depth: 12160 bytes left