linux-kernel - Re: [PATCH v2 10/13] EDAC/altera: Skip the panic notifier if kdump is loaded

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Date:   Wed, 17 Aug 2022 23:46:07 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Guilherme G. Piccoli" <gpiccoli@...lia.com>
Cc:     pmladek@...e.com, Dinh Nguyen <dinguyen@...nel.org>,
        Tony Luck <tony.luck@...el.com>, akpm@...ux-foundation.org,
        bhe@...hat.com, kexec@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-hyperv@...r.kernel.org,
        netdev@...r.kernel.org, x86@...nel.org, kernel-dev@...lia.com,
        kernel@...ccoli.net, halves@...onical.com, fabiomirmar@...il.com,
        alejandro.j.jimenez@...cle.com, andriy.shevchenko@...ux.intel.com,
        arnd@...db.de, corbet@....net, d.hatayama@...fujitsu.com,
        dave.hansen@...ux.intel.com, dyoung@...hat.com,
        feng.tang@...el.com, gregkh@...uxfoundation.org,
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        tglx@...utronix.de, vgoyal@...hat.com, vkuznets@...hat.com,
        will@...nel.org, linux-edac@...r.kernel.org
Subject: Re: [PATCH v2 10/13] EDAC/altera: Skip the panic notifier if kdump
 is loaded

On Wed, Aug 17, 2022 at 06:39:07PM -0300, Guilherme G. Piccoli wrote:
> Sorry for the confusion, let me try to be a bit more clear:

I think you're missing the point. Lemme try again:

You *absolutely* must log those errors because they're important. It
doesn't matter if this is done in a panic notifier and you're changing
that whole shebang or through some other magic.

If you do, then this driver needs to *still* *log* those fatal errors -
regardless through a panic notifier or some novel contraption it wants
to use.

So if you want to change the panic notifiers, you *must* make sure those
errors still do get logged.

Better?

-- 
Regards/Gruss,
    Boris.

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