[    2.131973] ip (198) used greatest stack depth: 12072 bytes left
[   50.301887] netem: version 1.3
[   58.161587] ip (4426) used greatest stack depth: 12056 bytes left
[  110.979154] ip (5187) used greatest stack depth: 12016 bytes left
[  536.272134] pm_nl_ctl (24834) used greatest stack depth: 11864 bytes left