[    1.674122] ip (254) used greatest stack depth: 12248 bytes left
[    1.697416] ip (257) used greatest stack depth: 12184 bytes left
[   54.542755] netem: version 1.3
[  566.227869] tc (15669) used greatest stack depth: 11912 bytes left
[  624.171366] pm_nl_ctl (18814) used greatest stack depth: 11848 bytes left