[    1.891851] ip (257) used greatest stack depth: 12616 bytes left
[    2.083442] ip (267) used greatest stack depth: 12560 bytes left
[    2.199647] ip (277) used greatest stack depth: 12344 bytes left
[   56.856037] netem: version 1.3
[   72.467516] ip (2518) used greatest stack depth: 12192 bytes left
[  109.146617] ip (2896) used greatest stack depth: 12064 bytes left