linux-kernel - Re: MCE reports errors that can't be verified

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Date:   Mon, 29 Oct 2018 11:25:57 -0700
From:   "Luck, Tony" <tony.luck@...el.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Daniel Aberger - Profihost AG <d.aberger@...fihost.ag>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "hpa@...or.com" <hpa@...or.com>, "x86@...nel.org" <x86@...nel.org>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "s.priebe@...fihost.ag" <s.priebe@...fihost.ag>,
        "n.fahldieck@...fihost.ag" <n.fahldieck@...fihost.ag>,
        "p.kramme@...fihost.ag" <p.kramme@...fihost.ag>
Subject: Re: MCE reports errors that can't be verified

On Mon, Oct 29, 2018 at 06:51:29PM +0100, Borislav Petkov wrote:
> On Mon, Oct 29, 2018 at 04:59:44PM +0000, Luck, Tony wrote:
> > The EDAC driver printed out those messages,
> 
> I don't think so - that's __print_mce() in mce.c which dumps the three
> lines under "... events logged". Which means, that's the lowest prio,
> fallback notifier which runs when nothing else before it has done any
> logging.

Ah yes. In which case the EDAC driver wasn't loaded (or gave up
silently) to let us arrive at the end of the decode chain.

Another question. Does /proc/interrupts show a lot of CMCI (for
historical reasons this is the THR: line).

-Tony