[   12.356057] ip (220) used greatest stack depth: 12272 bytes left
[   15.945813] ip (1194) used greatest stack depth: 12144 bytes left
[   27.826591] ip (1706) used greatest stack depth: 12040 bytes left
[   62.063603] netem: version 1.3
[  564.053951] pm_nl_ctl (24860) used greatest stack depth: 11864 bytes left