Re: [PATCH] Configure out doublefault exception handler (Linux Tiny)

[Sam Ravnborg <sam@ravnborg.org>]

On Tue, Feb 12, 2008 at 11:08:25AM +0100, Thomas Petazzoni wrote:
> Hi,
> 
> Enclosed patch allows to configure out the doublefault exception
> handler. The original patch of Matt Mackall added the option in
> init/Kconfig, but because this is a x86-specific thing, I thought
> arch/x86/Kconfig would be a better place. Is that correct ?
> 
> This patch applies on top on the DMI scanning code patch I've sent
> yesterday, because the DOUBLEFAULT config option is right after the DMI
> config option. Is that ok, or should I propose a patch on top of a
> vanilla 2.6.25-rc1 ?
> 
> Thanks for your review and comments,

We already have this in arch/x86/Kconfig.debug:

config DOUBLEFAULT
        default y
        bool "Enable doublefault exception handler" if EMBEDDED
        depends on X86_32
        help
          This option allows trapping of rare doublefault exceptions that
          would otherwise cause a system to silently reboot. Disabling this
          option saves about 4k and might cause you much additional grey
          hair.


It may need a small update if this is valid for both 32 and 64 bit.

	Sam