[   12.229933] ip (216) used greatest stack depth: 12272 bytes left
[   12.332942] ip (247) used greatest stack depth: 12080 bytes left
[   33.330137] ip (1880) used greatest stack depth: 12040 bytes left
[   61.782183] netem: version 1.3
[  571.328869] pm_nl_ctl (24865) used greatest stack depth: 11856 bytes left