linux-kernel - Re: [PATCH -v2.1] x86/msr: Filter MSR writes

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Message-ID: <20200714165813.GB3622@nazgul.tnic>
Date:   Tue, 14 Jul 2020 18:58:13 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Luck, Tony" <tony.luck@...el.com>
Cc:     Chris Down <chris@...isdown.name>, linux-kernel@...r.kernel.org,
        sean.j.christopherson@...el.com, torvalds@...ux-foundation.org,
        x86@...nel.org, kernel-team@...com,
        Matthew Garrett <matthewgarrett@...gle.com>
Subject: Re: [PATCH -v2.1] x86/msr: Filter MSR writes

On Tue, Jul 14, 2020 at 09:46:12AM -0700, Luck, Tony wrote:
> Maybe we just need smarter filtering of warnings.  It doesn't
> seem at all useful to warn for the same MSR 1000's of times.
> Maybe keep a count of warnings for each MSR and just stop
> all reports when reach a threshold?

No, not stop - just make them more rare.

And this is where the bikeshedding starts about how rare.

/me runs away to the beach and lets the others fight it out.

-- 
Regards/Gruss,
    Boris.

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