linux-kernel - Re: edac driver injection of uncorrected errors & utils

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Date:   Wed, 5 Dec 2018 17:59:41 +0000
From:   York Sun <york.sun@....com>
To:     Tracy Smith <tlsmith3777@...il.com>, "bp@...en8.de" <bp@...en8.de>
CC:     "linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
        "util-linux@...r.kernel.org" <util-linux@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: edac driver injection of uncorrected errors & utils

On 12/5/18 8:38 AM, Tracy Smith wrote:
> This is more directed toward York for layerscape. I see some edac code
> that seem to do periodic scrubs based on intervals or scrub rate, but
> that is not needed for the layerscape driver to correct errors because
> errors are scrubbed when found by the edac scrub block or is it
> because the memory controller itself does the correction/scrubbing
> when an error is found?

Single-bit errors are corrected by memory controller without involving
software.

York