[    1.599319] ip (254) used greatest stack depth: 12168 bytes left
[   51.165578] netem: version 1.3
[  504.435443] ip (15002) used greatest stack depth: 12120 bytes left
[  561.123512] tc (16941) used greatest stack depth: 11896 bytes left
[  618.175760] pm_nl_ctl (20243) used greatest stack depth: 11864 bytes left