linux-kernel - Re: [PATCH] [9/9] MCE: Use 64bit machine check code on 32bit

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Message-ID: <36ca99e90807050250u718fa277t2297d6436fd14c4e@mail.gmail.com>
Date:	Sat, 5 Jul 2008 11:50:26 +0200
From:	"Bert Wesarg" <bert.wesarg@...glemail.com>
To:	"Andi Kleen" <andi@...stfloor.org>
Cc:	masbock@...ux.vnet.ibm.com, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [9/9] MCE: Use 64bit machine check code on 32bit

Hi,

> Index: linux/arch/x86/Kconfig
> ===================================================================
> --- linux.orig/arch/x86/Kconfig
> +++ linux/arch/x86/Kconfig
> @@ -652,10 +652,37 @@ config X86_MCE
>          to disable it.  MCE support simply ignores non-MCE processors like
>          the 386 and 486, so nearly everyone can say Y here.
>
> +config X86_OLD_MCE
> +       depends on X86_32
> +       bool "Use legacy machine check code (will go away)"
> +       default n
> +       help
> +         Use the old i386 machine check code. This is merely intended for testing
> +         in a transition period. Try this if you run into any machine check
> +         related software problems.
> +         When in doubt say no.
> +
> +config X86_ANCIENT_MCE
> +       depends on X86_32
> +       bool "Support ancient machine check handler for very old CPUs"
> +       default n
> +       help
> +         Include support for family 5 (Intel Pentium 1 and Centaur Winchip)
> +         machine check code.  Machine check handles uncorrected CPU errors.
> +         Note that the P5 pentium support is disabled
> +         by default and can be only enabled on special hardware.
> +         The Winchip code doesn't do much.
> +         If you're still sure you want it, say n, otherwise n is safe
Is this first "n" a typo?

Bert
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