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From: Anders Andersson <>
To: Borislav Petkov <>
Subject: Re: User question about memory scrubbing
Date: Fri, 19 Jun 2020 03:55:16 +0200
Message-ID: <> (raw)
In-Reply-To: <20200618175646.GD27951@zn.tnic>

On Thu, Jun 18, 2020 at 7:56 PM Borislav Petkov <> wrote:
> On Thu, Jun 18, 2020 at 06:49:45PM +0200, Anders Andersson wrote:
> > Hi! I realize that this is more of a developer-to-developer list, but
> > I'm a hobbyist who recently bought my first system with ECC RAM
> > (Opteron 6386 SE) and I can't get memory scrubbing to work. It's hard
> > to find people who know anything about it.
> >
> > Preliminary research led me to the EDAC documentation on
> >
> > and in particular the "sdram_scrub_rate" file, but had no luck
> > manipulating it.
> Oh, you're manipulating it alright but there's a bug in reporting it.
> Wanna test a patch?

Wow, nice to see that I'm not crazy, and thanks for the quick fix! I
saw the patch and I will try it out after I've re-learnt how to build
a kernel again. It's been well over 10 years since I last had to...

// Anders

      parent reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-18 16:49 Anders Andersson
2020-06-18 17:56 ` Borislav Petkov
2020-06-18 18:40   ` [PATCH] EDAC/amd64: Read back the scrub rate PCI register on F15h Borislav Petkov
2020-06-22 15:13     ` Borislav Petkov
2020-06-23  1:41       ` Anders Andersson
2020-06-23  9:18         ` Borislav Petkov
2020-06-19  1:55   ` Anders Andersson [this message]

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