[   30.831229] ip (2916) used greatest stack depth: 12376 bytes left
[   36.368945] ip (3083) used greatest stack depth: 12352 bytes left
[   49.674380] ip (4100) used greatest stack depth: 12104 bytes left
[   50.259002] netem: version 1.3
[  528.313586] pm_nl_ctl (24828) used greatest stack depth: 11944 bytes left