[    2.345572] ip (269) used greatest stack depth: 12664 bytes left
[    2.461161] ip (278) used greatest stack depth: 12344 bytes left
[   60.636145] netem: version 1.3
[  641.539032] tc (15596) used greatest stack depth: 11936 bytes left
[  703.298804] pm_nl_ctl (18735) used greatest stack depth: 11592 bytes left