[    2.353322] ip (253) used greatest stack depth: 12456 bytes left
[    2.389369] ip (256) used greatest stack depth: 12392 bytes left
[    2.986300] ip (293) used greatest stack depth: 12344 bytes left
[   57.765044] netem: version 1.3
[   68.379194] ip (2376) used greatest stack depth: 12192 bytes left