[    2.169496] ip (278) used greatest stack depth: 12360 bytes left
[    2.270839] ip (287) used greatest stack depth: 12344 bytes left
[   59.127155] netem: version 1.3
[  434.303330] ip (8207) used greatest stack depth: 12192 bytes left
[  591.705477] ip (13051) used greatest stack depth: 12064 bytes left