I figure there should be no inter-dependencies there, but the side-effect of 
the new dnsmasq is pretty serious.

I did not install .6, I only performed an opkg update of the dnamasq package 
itself. So kernal is the same in my case.

But others running a full .6 build report similar QoS issues.

I regressed back to .4 and all is good on the QoS front, waiting until a new 
drop of dnsmasq before trying again.

- Jonathan

> On Jan 22, 2021, at 4:15 PM, Toke Høiland-Jørgensen <t...@toke.dk> wrote:
> 
> Jonathan Foulkes <j...@jonathanfoulkes.com> writes:
> 
>> I installed the updated package on a 19.07.4 box running cake, and QoS 
>> performance went down the tubes.
>> Last night it locked up completely while attempting to stream.
>> 
>> See the PingPlots others have posted to this forum thread, mine look 
>> similar, went from constant sub 50ms to very spiky, then some loss, loss 
>> increasing, and if high traffic, lock-up.
>> https://forum.openwrt.org/t/security-advisory-2021-01-19-1-dnsmasq-multiple-vulnerabilities/85903/39
>> 
>> load is low, sirq is low, so box does not seem stressed.
>> 
>> Any reason Cake would be sensitive to a dnsmasq bug?
> 
> No, not really. I mean, dnsmasq could be sending some traffic that
> interferes with stuff? Or it could be a kernel regression - the release
> did bump the kernel version as well...
> 
> -Toke

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