[    1.979292] ip (267) used greatest stack depth: 12456 bytes left
[    2.155376] ip (286) used greatest stack depth: 12392 bytes left
[    2.245001] ip (295) used greatest stack depth: 12200 bytes left
[   71.346039] netem: version 1.3
[  617.449574] tc (23602) used greatest stack depth: 11880 bytes left
[  683.338330] pm_nl_ctl (27731) used greatest stack depth: 11864 bytes left