linux-kernel - Re: [RFC PATCH v4 3/3] acpi: apei: Do not panic() on PCIe errors reported through GHES

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Message-ID: <20180511174112.GI12705@pd.tnic>
Date:   Fri, 11 May 2018 19:41:12 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Alex G." <mr.nuke.me@...il.com>
Cc:     alex_gagniuc@...lteam.com, austin_bolen@...l.com,
        shyam_iyer@...l.com, "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>, Tony Luck <tony.luck@...el.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Robert Moore <robert.moore@...el.com>,
        Erik Schmauss <erik.schmauss@...el.com>,
        Tyler Baicar <tbaicar@...eaurora.org>,
        Will Deacon <will.deacon@....com>,
        James Morse <james.morse@....com>,
        Shiju Jose <shiju.jose@...wei.com>,
        "Jonathan (Zhixiong) Zhang" <zjzhang@...eaurora.org>,
        Dongjiu Geng <gengdongjiu@...wei.com>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-edac@...r.kernel.org, devel@...ica.org
Subject: Re: [RFC PATCH v4 3/3] acpi: apei: Do not panic() on PCIe errors
 reported through GHES

On Fri, May 11, 2018 at 12:01:52PM -0500, Alex G. wrote:
> I understand your concern with unhandled AER errors evolving into MCE's.
> That's extremely rare, but when it happens you still panic due to the
> MCE.

I don't like leaving holes in the handling of PCIe errors. You need to
handle only those errors which are caused by hot-removal and not affect
other error types. Or do a comprehensive PCIe errors handling of all
errors in the AER driver.

-- 
Regards/Gruss,
    Boris.

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