[    2.328941] ip (287) used greatest stack depth: 12360 bytes left
[    2.424603] ip (296) used greatest stack depth: 12304 bytes left
[   57.428710] netem: version 1.3
[   73.238994] ip (2492) used greatest stack depth: 12192 bytes left
[  437.448530] ip (7948) used greatest stack depth: 12064 bytes left