[    2.015410] ip (258) used greatest stack depth: 12392 bytes left
[    2.313684] ip (277) used greatest stack depth: 12360 bytes left
[    2.537089] ip (295) used greatest stack depth: 12344 bytes left
[   53.376718] netem: version 1.3
[  648.903433] ip (13615) used greatest stack depth: 12304 bytes left