[    1.984341] ip (267) used greatest stack depth: 12600 bytes left
[    2.075300] ip (277) used greatest stack depth: 12504 bytes left
[    2.166080] ip (286) used greatest stack depth: 12392 bytes left
[    2.254226] ip (295) used greatest stack depth: 12248 bytes left
[    2.994942] ip (375) used greatest stack depth: 12232 bytes left
[   51.336422] netem: version 1.3
[  639.997899] pm_nl_ctl (18826) used greatest stack depth: 11872 bytes left