[    1.659139] ip (268) used greatest stack depth: 12632 bytes left
[    1.724395] ip (278) used greatest stack depth: 12408 bytes left
[    1.789328] ip (287) used greatest stack depth: 12344 bytes left
[    1.854304] ip (296) used greatest stack depth: 12216 bytes left
[    3.512772] ip (524) used greatest stack depth: 12184 bytes left
[   48.474277] netem: version 1.3
[  561.121049] tc (16940) used greatest stack depth: 11904 bytes left
[  617.358418] pm_nl_ctl (20241) used greatest stack depth: 11880 bytes left