[    1.890185] ip (254) used greatest stack depth: 12384 bytes left
[    1.998782] ip (261) used greatest stack depth: 12336 bytes left
[    4.313770] ip (473) used greatest stack depth: 12288 bytes left
[   51.491282] netem: version 1.3
[  383.691646] ip (5757) used greatest stack depth: 12240 bytes left
[  522.662830] ip (10002) used greatest stack depth: 12144 bytes left
[  589.979895] tc (11917) used greatest stack depth: 11872 bytes left