Re: [REGRESSION] mainline boot regression on AMD Stoney Ridge Chromebooks

From: Thomas Gleixner
Date: Fri Apr 05 2024 - 10:59:20 EST


On Fri, Apr 05 2024 at 15:58, Laura Nao wrote:
> On 4/5/24 15:38, Thomas Gleixner wrote:
>>
>> Can you please boot a working kernel and provide the output of:
>>
>> # rdmsr 0xc0011005
>
> # rdmsr 0xc0011005
> 2fabbfff2fd3fbff

Ok. So the CPU does not advertise FEATURE_TOPOEXT which is consistent
with CPUID.

Now I'm even more puzzled because then the patch I gave you should make
a difference. I need to run some errands now, I will provide a debug
patch later this evening.

Thanks,

tglx