[    1.521411] ip (253) used greatest stack depth: 12304 bytes left
[    1.793631] ip (286) used greatest stack depth: 12272 bytes left
[   47.062495] netem: version 1.3
[  543.476025] tc (15679) used greatest stack depth: 11952 bytes left
[  604.062411] pm_nl_ctl (18822) used greatest stack depth: 11864 bytes left