linux-kernel - Re: Panic starting 6.2.x and later 6.1.x kernels

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Date:   Wed, 29 Mar 2023 14:07:47 -0500
From:   "Limonciello, Mario" <mario.limonciello@....com>
To:     David R <david@...olicited.net>, Borislav Petkov <bp@...en8.de>,
        Gabriel David <ultracoolguy@...root.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Kishon Vijay Abraham I <kvijayab@....com>
Subject: Re: Panic starting 6.2.x and later 6.1.x kernels

On 3/29/2023 14:03, David R wrote:
> On 29/03/2023 18:51, Limonciello, Mario wrote:
>> APIC @ 0x0000000000000000
>>>      0000: 41 50 49 43 DE 00 00 00 03 AC 41 4C 41 53 4B 41 
>>> APIC......ALASKA
>>>      0010: 41 20 4D 20 49 20 00 00 09 20 07 01 41 4D 49 20  A M I ... 
>>> ..AMI
>>>      0020: 13 00 01 00 00 00 E0 FE 01 00 00 00 00 08 01 00 
>>> ................
>>>      0030: 01 00 00 00 00 08 02 01 01 00 00 00 00 08 03 02 
>>> ................
>>>      0040: 01 00 00 00 00 08 04 03 01 00 00 00 00 08 05 08 
>>> ................
>>>      0050: 01 00 00 00 00 08 06 09 01 00 00 00 00 08 07 0A 
>>> ................
>>>      0060: 01 00 00 00 00 08 08 0B 01 00 00 00 00 08 09 00 
>>> ................
>>>      0070: 00 00 00 00 00 08 0A 00 00 00 00 00 00 08 0B 00 
>>> ................
>>>      0080: 00 00 00 00 00 08 0C 00 00 00 00 00 00 08 0D 00 
>>> ................
>>>      0090: 00 00 00 00 00 08 0E 00 00 00 00 00 00 08 0F 00 
>>> ................
>>>      00A0: 00 00 00 00 00 08 10 00 00 00 00 00 04 06 FF 05 
>>> ................
>>>      00B0: 00 01 01 0C 09 00 00 00 C0 FE 00 00 00 00 01 0C 
>>> ................
>>>      00C0: 0A 00 00 10 C0 FE 18 00 00 00 02 0A 00 00 02 00 
>>> ................
>>>      00D0: 00 00 00 00 02 0A 00 09 09 00 00 00 0F 00 ..............
>>>
>>>
>>> Cheers
>>> David
>>>
>>
>> Can you guys have a try with this patch to see if it helps the situation?
>>
>> https://lore.kernel.org/linux-pm/20230329174536.6931-1-mario.limonciello@amd.com/T/#u
>>
>> Thanks,
> 
> Your patch on top of 6.2.8 brought the crash back I'm afraid.
> 
> Cheers
> David

Humm.  In that case I'm a bit worried there is some conflicting patches 
that caused this result.  Could you try with both

e2869bd7af60 and aa06e20f1be6 reverted?  If that also fails, I think a 
more complicated bisect removing those commits is needed.