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Date: Thu, 28 Sep 2023 16:43:45 +0200
From: Borislav Petkov <bp@...en8.de>
To: Shuai Xue <xueshuai@...ux.alibaba.com>
Cc: keescook@...omium.org, tony.luck@...el.com, gpiccoli@...lia.com,
	rafael@...nel.org, lenb@...nel.org, james.morse@....com,
	tglx@...utronix.de, mingo@...hat.com, dave.hansen@...ux.intel.com,
	x86@...nel.org, hpa@...or.com, ardb@...nel.org,
	robert.moore@...el.com, linux-hardening@...r.kernel.org,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-edac@...r.kernel.org, linux-efi@...r.kernel.org,
	acpica-devel@...ts.linuxfoundation.org,
	baolin.wang@...ux.alibaba.com
Subject: Re: [RFC PATCH v2 0/9] Use ERST for persistent storage of MCE and
 APEI errors

On Mon, Sep 25, 2023 at 03:44:17PM +0800, Shuai Xue wrote:
> After /dev/mcelog character device deprecated by commit 5de97c9f6d85
> ("x86/mce: Factor out and deprecate the /dev/mcelog driver"), the
> serialized MCE error record, of previous boot in persistent storage is not
> collected via APEI ERST.

You lost me here. /dev/mcelog is deprecated but you can still use it and
apei_write_mce() still happens.

Looking at your patches, you're adding this to ghes so how about you sit
down first and explain your exact use case and what exactly you wanna
do?

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

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