[    2.640633] ip (291) used greatest stack depth: 12384 bytes left
[   14.211173] ip (1175) used greatest stack depth: 12256 bytes left
[   61.470814] netem: version 1.3
[  620.419837] tc (15683) used greatest stack depth: 11936 bytes left
[  685.431699] pm_nl_ctl (18827) used greatest stack depth: 11880 bytes left