[    1.830447] ip (259) used greatest stack depth: 12168 bytes left
[    3.043678] ip (384) used greatest stack depth: 12120 bytes left
[   51.870547] netem: version 1.3
[  573.387684] tc (16942) used greatest stack depth: 11896 bytes left
[  629.586435] pm_nl_ctl (20242) used greatest stack depth: 11864 bytes left