Re: Kernel 6.9 regression: X86: Bogus messages from topology detection

[Thomas Gleixner]

On Fri, May 31 2024 at 10:16, Christian Heusel wrote:
> On 24/05/31 10:13AM, Christian Heusel wrote:
> [    0.046127] TSC deadline timer available
> [    0.046129] CPU topo: Max. logical packages:   1
> [    0.046129] CPU topo: Max. logical dies:       1
> [    0.046129] CPU topo: Max. dies per package:   1
> [    0.046131] CPU topo: Max. threads per core:   2
> [    0.046132] CPU topo: Num. cores per package:    10
> [    0.046132] CPU topo: Num. threads per package:  12
> [    0.046132] CPU topo: Allowing 12 present CPUs plus 0 hotplug CPUs

This looks correct.

> [    0.117308] smpboot: x86: Booting SMP configuration:
> [    0.117308] .... node  #0, CPUs:        #2  #4  #5  #6  #7  #8  #9 #10 #11
> [    0.009676] [Firmware Bug]: CPU4: Topology domain 1 shift 7 != 6

So this means that the E-Cores have a different topology information for
the CORE shift value than the P-Cores which is definitely wrong.

Let's see what cpuid -r reports.

Thanks,

        tglx