[    2.382412] ip (289) used greatest stack depth: 12272 bytes left
[   19.237202] ip (1299) used greatest stack depth: 12144 bytes left
[   57.005067] netem: version 1.3
[  594.714217] tc (15593) used greatest stack depth: 11936 bytes left
[  660.190830] pm_nl_ctl (18730) used greatest stack depth: 11872 bytes left