[    1.581144] ip (253) used greatest stack depth: 12296 bytes left
[    1.910402] ip (294) used greatest stack depth: 12248 bytes left
[   49.995618] netem: version 1.3
[  624.937282] tc (21195) used greatest stack depth: 11952 bytes left
[  683.290307] pm_nl_ctl (24334) used greatest stack depth: 11576 bytes left