linux-kernel - Re: [PATCH] x86: add more x86-64 micro-architecture levels

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Message-ID: <6e6ffa78-1f8c-4f32-9fe7-141cb39d06d2@intel.com>
Date: Tue, 24 Sep 2024 06:38:56 -0700
From: Dave Hansen <dave.hansen@...el.com>
To: kernel test robot <oliver.sang@...el.com>, John <therealgraysky@...ton.me>
Cc: oe-lkp@...ts.linux.dev, lkp@...el.com, linux-kernel@...r.kernel.org,
 Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
 Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
 Unknown <x86@...nel.org>, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] x86: add more x86-64 micro-architecture levels

On 9/24/24 00:00, kernel test robot wrote:
> we don't have enough knowledge how this commit causing the random
> early crash issue as report below.
> 
> we noticed the config has below diff comparing to parent....
> +# CONFIG_MAMD_CPU_V2 is not set
> +# CONFIG_MAMD_CPU_V3 is not set
> +CONFIG_MAMD_CPU_V4=y
> +# CONFIG_MINTEL_CPU_V2 is not set
> +# CONFIG_MINTEL_CPU_V3 is not set
> +# CONFIG_MINTEL_CPU_V4 is not set

Clang is probably being induced to use some ISA that isn't supported on
Sandybridge.

In any case, I think this series is very unlikely to get applied.