[    1.878925] ip (261) used greatest stack depth: 12608 bytes left
[    1.977361] ip (271) used greatest stack depth: 12528 bytes left
[    2.075009] ip (280) used greatest stack depth: 12456 bytes left
[    2.168033] ip (289) used greatest stack depth: 12320 bytes left
[   47.364732] netem: version 1.3
[   54.961471] ip (2216) used greatest stack depth: 12272 bytes left
[  548.720358] tc (11904) used greatest stack depth: 11872 bytes left