[Cake] cake srchost/dsthost stopped working?

Pete Heist pete at heistp.net
Tue Aug 3 15:46:35 EDT 2021

One more tip, reverting this commit seems to fix it:



On Tue, 2021-08-03 at 18:03 +0200, Pete Heist wrote:
> It seems like Cake's srchost and dsthost keywords may have stopped
> working some time between kernel 5.4 and 5.10.
> When the bug occurs, there seems to not be fairness between hosts, but
> rather fairness between flows. It reproduces on any 5.10 series kernel
> I've tried, and does not reproduce on any 5.4 series or lower. Here's a
> standalone script to reproduce it with netns, and some sample output:
> https://www.heistp.net/downloads/cake-hostfair/
> It creates competition from one IP to two IPs, and from two IPs to one
> IP, using the src/dsthost keywords as appropriate. It also tests
> fq_codel with a tc-flow filter, and cake *dual*-(src|dst)host, which
> are both unaffected by this.
> Any ideas?
> Pete

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