[    1.897972] ip (256) used greatest stack depth: 12304 bytes left
[    2.313369] ip (288) used greatest stack depth: 12272 bytes left
[    3.440261] ip (392) used greatest stack depth: 12128 bytes left
[   58.666738] netem: version 1.3
[  639.109870] tc (15594) used greatest stack depth: 11936 bytes left
[  704.748610] pm_nl_ctl (18733) used greatest stack depth: 11912 bytes left