[    2.348060] ip (277) used greatest stack depth: 12360 bytes left
[    2.449985] ip (286) used greatest stack depth: 12344 bytes left
[    3.542353] ip (374) used greatest stack depth: 12336 bytes left
[   52.613543] netem: version 1.3
[  524.334418] ip (10078) used greatest stack depth: 12160 bytes left
[  637.297727] ip (13597) used greatest stack depth: 12064 bytes left