linux-kernel - Re: [PATCH 3/3] ghes_edac: add platform check to enable ghes

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Message-ID: <1500650732.2042.45.camel@hpe.com>
Date:   Fri, 21 Jul 2017 15:34:50 +0000
From:   "Kani, Toshimitsu" <toshi.kani@....com>
To:     "bp@...en8.de" <bp@...en8.de>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "mchehab@...pensource.com" <mchehab@...pensource.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "rjw@...ysocki.net" <rjw@...ysocki.net>,
        "srinivas.pandruvada@...ux.intel.com" 
        <srinivas.pandruvada@...ux.intel.com>,
        "tony.luck@...el.com" <tony.luck@...el.com>,
        "lenb@...nel.org" <lenb@...nel.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>
Subject: Re: [PATCH 3/3] ghes_edac: add platform check to enable ghes_edac

On Fri, 2017-07-21 at 17:13 +0200, Borislav Petkov wrote:
> On Fri, Jul 21, 2017 at 03:08:41PM +0000, Kani, Toshimitsu wrote:
> > Yes, that is correct.  Corrected errors are reported to the OS when
> > they exceeded the platform's threshold.
> 
> Are those thresholds user-configurable?

I suppose it'd depend on vendors, but I do not think users can do it
properly unless they have depth knowledge about the hardware.

> If not, what are you telling users who want to see *every* corrected
> error for measuring DIMM wear and so on...?

Corrected errors are normal and expected to occur on healthy hardware. 
They do not need user's attention until they repeatedly occurred at a
same place.

Thanks,
-Toshi