linux-kernel - Re: [PATCH v3 17/17] x86/mce: Restore poll settings after storm subsides

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Message-ID: <20250515123708.GFaCXf9DLcsPqXhFSn@fat_crate.local>
Date: Thu, 15 May 2025 14:37:08 +0200
From: Borislav Petkov <bp@...en8.de>
To: Yazen Ghannam <yazen.ghannam@....com>
Cc: "Luck, Tony" <tony.luck@...el.com>, "x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
	"Smita.KoralahalliChannabasappa@....com" <Smita.KoralahalliChannabasappa@....com>,
	"Zhuo, Qiuxu" <qiuxu.zhuo@...el.com>
Subject: Re: [PATCH v3 17/17] x86/mce: Restore poll settings after storm
 subsides

On Wed, May 14, 2025 at 10:34:16AM -0400, Yazen Ghannam wrote:
> On AMD, MCA bank management is always 'local', i.e. per-CPU.
> 
> If a CPU is in the polling function, can it be preempted by an interrupt
> (not MCE)?

Well, ofc. We're polling with interrupts enabled.

-- 
Regards/Gruss,
    Boris.

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