[    1.879654] ip (257) used greatest stack depth: 12320 bytes left
[    2.292912] ip (288) used greatest stack depth: 12272 bytes left
[   55.582372] netem: version 1.3
[  108.056426] ip (3474) used greatest stack depth: 12128 bytes left
[  609.078157] tc (15594) used greatest stack depth: 11936 bytes left
[  675.610728] pm_nl_ctl (18733) used greatest stack depth: 11872 bytes left