[    2.223293] ip (257) used greatest stack depth: 12392 bytes left
[    2.797708] ip (288) used greatest stack depth: 12344 bytes left
[   66.413776] netem: version 1.3
[  403.966426] ip (8524) used greatest stack depth: 12032 bytes left
[  611.107573] tc (15587) used greatest stack depth: 11936 bytes left
[  674.415167] pm_nl_ctl (18725) used greatest stack depth: 11872 bytes left