linux-kernel - Re: x86: mce: Please revert 22223c9b417be5fd0ab2cf9ad17eb7bd1e19f7b9

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Message-ID: <20091001153250.GA25885@elte.hu>
Date:	Thu, 1 Oct 2009 17:32:50 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Borislav Petkov <borislav.petkov@....com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Borislav Petkov <petkovbb@...glemail.com>,
	Andi Kleen <andi@...stfloor.org>, x86@...nel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: x86: mce: Please revert
	22223c9b417be5fd0ab2cf9ad17eb7bd1e19f7b9


* Borislav Petkov <borislav.petkov@....com> wrote:

> On Thu, Oct 01, 2009 at 05:00:46PM +0200, Ingo Molnar wrote:
> > > > Of course, if it _requires_ being loaded early for some other reason, then
> > > 
> > > the only reason I can think of is if you want to be able to decode 
> > > MCEs happening as early as possible before the modules have been 
> > > init-ted.
> > > 
> > > Question really is, what is more important to us? But we definitely 
> > > can do the module stuff too and get rid of ~5K core kernel fat by 
> > > relocating the whole functionality completely into the module. Hmm...
> > 
> > I'd focus on the built-in-side initially, which is the most 
> > practical/debuggable/serviceable solution. It's of course not a problem 
> > (at all) if it is _also_ module loadable but that's not the primary 
> > goal.
> 
> How about a CONFIG_EDAC_DECODE_MCE which depends on CONFIG_CPU_SUP_AMD 
> and defaults to yes with a config text saying something in the likes 
> of
> 
> "... Select Y here if you want to decode MCEs happening early before 
> the modules framework has been initialized...."

Yeah, that would be good. It should also obviously depend on 
CONFIG_X86_MCE - so only visible if MCE support is enabled.

	Ingo
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