On Fri, May 31 2024 at 16:29, Christian Heusel wrote:
P-Cores are consistent:
> CPU 0:
> 0x0000000b 0x01: eax=0x00000006 ebx=0x0000000c ecx=0x00000201 edx=0x00000000
> 0x0000001f 0x00: eax=0x00000001 ebx=0x00000002 ecx=0x00000100 edx=0x00000000
E-Cores are not:
> CPU 4:
> 0x0000000b 0x01: eax=0x00000006 ebx=0x0000000c ecx=0x00000201 edx=0x00000010
> 0x0000001f 0x01: eax=0x00000007 ebx=0x0000000c ecx=0x00000201 edx=0x00000010
As the topology is evaluated from CPU0 CPUID leaf 0x1f it's obvious that
CPU4...11 will trigger the sanity checks because their CPUID leaf 0x1f
subleaf 1 entries are bogus.
IOW it's a firmware bug and there is nothing the kernel will and can do
about it except what it does already: complaining about the inconsistency.
Thanks for providing all the information!
tglx
