[    1.668775] ip (267) used greatest stack depth: 12344 bytes left
[    1.869333] ip (295) used greatest stack depth: 12216 bytes left
[    2.809550] ip (420) used greatest stack depth: 11944 bytes left
[   51.034507] netem: version 1.3
[  560.289338] tc (16942) used greatest stack depth: 11896 bytes left
[  620.249036] pm_nl_ctl (20241) used greatest stack depth: 11864 bytes left