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

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Message-ID: <aCIZZIsee7roLlNZ@agluck-desk3>
Date: Mon, 12 May 2025 08:53:08 -0700
From: "Luck, Tony" <tony.luck@...el.com>
To: Yazen Ghannam <yazen.ghannam@....com>
Cc: Borislav Petkov <bp@...en8.de>, x86@...nel.org,
	linux-kernel@...r.kernel.org, linux-edac@...r.kernel.org,
	Smita.KoralahalliChannabasappa@....com,
	Qiuxu Zhuo <qiuxu.zhuo@...el.com>
Subject: Re: [PATCH v3 17/17] x86/mce: Restore poll settings after storm
 subsides

On Mon, May 12, 2025 at 11:43:15AM -0400, Yazen Ghannam wrote:
> On Mon, May 12, 2025 at 09:46:16AM +0200, Borislav Petkov wrote:
> > On Tue, Apr 15, 2025 at 02:55:12PM +0000, Yazen Ghannam wrote:
> > > Users can disable MCA polling by setting the "ignore_ce" parameter or by
> > > setting "check_interval=0". This tells the kernel to *not* start the MCE
> > > timer on a CPU.
> > > 
> > > During a CMCI storm, the MCE timer will be started with a fixed
> > > interval.

I think you just need some more words at the start of this second
paragraph to avoid confusion when reading together with the previous
one.

Perhaps:

If the user did not disable CMCI, then storms can occur. When these
happen the MCE timer will be started ...

-Tony