[   30.622861] ip (2902) used greatest stack depth: 12344 bytes left
[   49.966428] netem: version 1.3
[   57.709845] ip (4434) used greatest stack depth: 12160 bytes left
[  109.977463] ip (5168) used greatest stack depth: 12080 bytes left
[  533.440620] pm_nl_ctl (24826) used greatest stack depth: 11944 bytes left