linux-kernel - Re: Early boot regression from f0551af0213 ("x86/topology: Ignore non-present APIC IDs in a present package")

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Date: Fri, 19 Apr 2024 07:37:45 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Lyude Paul <lyude@...hat.com>, Borislav Petkov <bp@...en8.de>
Cc: x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: Early boot regression from f0551af0213 ("x86/topology: Ignore
 non-present APIC IDs in a present package")

On Thu, Apr 18 2024 at 21:13, Thomas Gleixner wrote:
> On Thu, Apr 18 2024 at 13:20, Lyude Paul wrote:
>
>> Just gave it a try, unfortunately I'm still seeing the same result on
>> that branch.
>>
>> One more piece of information I apparently missed when reporting this
>> yesterday btw: I noticed one more kernel message that comes before the
>> panic that's probably relevant:
>>
>> ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
>
> Can you please apply the debug patch below which should make it boot
> again.

And provide the resulting dmesg obviously.

> Please also provide the output of the files underneath of
>
>        /sys/kernel/debug/x86/topo/
>
> Thanks,
>
>         tglx