[    2.232142] ip (258) used greatest stack depth: 12392 bytes left
[    2.745745] ip (286) used greatest stack depth: 12344 bytes left
[    8.925790] ip (683) used greatest stack depth: 12192 bytes left
[   58.340318] netem: version 1.3
[  478.310274] ip (8760) used greatest stack depth: 12064 bytes left