Comment # 3 on bug 1227345 from Takashi Iwai

(In reply to Maxime Thirion from comment #2)
> (In reply to Takashi Iwai from comment #1)
> > IIRC, there were relevant bugs in the early 6.9.x kernels, and it's been
> > fixed in the recent 6.9.x release (around 6.9.4).
> 
> If I've understood correctly, with the first buggy kernels the cores
> appeared, but tasks weren't always sent to the other cores?
> 
> Here, the cores disappeared from the system with kernel 6.9.
> Only dmidecode shows me the 4 cores, but only one is activated.
> 
> And I have the same problem with the latest kernel available on
> MicroOS/Tumbleweed:
> 
> cloud:~ # uname -a
> Linux cloud 6.9.7-1-default #1 SMP PREEMPT_DYNAMIC Fri Jun 28 05:50:47 UTC
> 2024 (a5efffa) x86_64 x86_64 x86_64 GNU/Linux
> 
> cloud:~ # dmidecode -t processor |grep Core
>         Family: Core 2 Duo
>         Version: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz
>         Core Count: 4
>         Core Enabled: 1

Then it's a different bug from what I originally thought.
Please check with the latest 6.10-rc kernel in OBS Kernel:HEAD repo, and if the
issue is reproducible, better report to the upstream.