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Subject: Re: [PATCH 2/2] edac: add support for Amazon's Annapurna Labs EDAC
From:   Benjamin Herrenschmidt <benh@kernel.crashing.org>
To:     Borislav Petkov <bp@alien8.de>
Cc:     Mauro Carvalho Chehab <mchehab@kernel.org>,
        James Morse <james.morse@arm.com>,
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        "Shenhar, Talel" <talel@amazon.com>,
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        "Chocron, Jonathan" <jonnyc@amazon.com>,
        "Krupnik, Ronen" <ronenk@amazon.com>,
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        "Hanoch, Uri" <hanochu@amazon.com>
Date:   Thu, 13 Jun 2019 09:57:33 +1000
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On Wed, 2019-06-12 at 14:25 +0200, Borislav Petkov wrote:
> > But for the main case that really needs to be in the kernel, which is
> > DRAM, the recovery can usually be contained to the MC driver anyway.
> 
> Right, if that is enough to handle the error properly.
> 
> The memory-failure.c example I gave before is the error reporting
> mechanism (x86 MCA) calling into the mm subsystem to poison and isolate
> page frames which are known to contain errors. So you have two things
> talking to each other.

And none of them is an EDAC driver...

I mean yes, the network drivers talk to the network stack, or even the
memory allocator :-)

I still don't see how that requires a big platform coordinator...

Ben.