Fedora sees only 1 CPU core after updating the kernel from 6.8.x to 6.9.x

[ffmancera (Fernando F. Mancera)]

The patch I sent is now merged: x86/cpu/topology: Remove limit of CPUs due to disabled IO/APIC - kernel/git/torvalds/linux.git - Linux kernel source tree

I will ask for backport to the kernel package maintainer. Thanks for reporting it