[    2.350986] ip (293) used greatest stack depth: 12248 bytes left
[   50.556065] netem: version 1.3
[  550.276269] ip (15620) used greatest stack depth: 12232 bytes left
[  550.863999] tc (15677) used greatest stack depth: 11912 bytes left
[  610.038964] pm_nl_ctl (18824) used greatest stack depth: 11864 bytes left