[    1.690362] ip (253) used greatest stack depth: 12304 bytes left
[    2.082729] ip (294) used greatest stack depth: 12272 bytes left
[   47.737471] netem: version 1.3
[  552.392957] tc (15679) used greatest stack depth: 11952 bytes left
[  611.044485] pm_nl_ctl (18823) used greatest stack depth: 11864 bytes left