I've tested both, 6.9.7 and 6.10-rc6 and they both don't have that
issue. I can disable CPU boost with both kernel versions.
Thanks for checking those. That's good to hear it's only an issue in
the LTS series.
It means we have the option to either drop that patch from LTS kernel
series or identify the other commit(s) that helped it.
Can you see if adding this commit to 6.6.y helps you?
https://git.kernel.org/superm1/c/8164f743326404fbe00a721a12efd86b2a8d74d2
I'd like to understand if we just have a missing commit to backport
or it's a problem in the mainline kernel as well.
From the below description it's specifically with boost in passive
mode, right?
I have only tested the passive mode on all my Ryzen systems and only my
Zen4 machine shows this regression.
That's an interesting finding. Do you know if your other system(s)
support preferred cores?
Also as a curiosity why don't you use active mode (EPP)? Most people
find a better balance with perf/efficiency with EPP.
