[    1.672092] ip (252) used greatest stack depth: 12304 bytes left
[    2.031515] ip (293) used greatest stack depth: 12272 bytes left
[    4.993275] ip (641) used greatest stack depth: 12000 bytes left
[   49.547351] netem: version 1.3
[  551.801055] tc (15681) used greatest stack depth: 11936 bytes left
[  609.982803] pm_nl_ctl (18825) used greatest stack depth: 11880 bytes left