Re: [2.6 patch] i386: KEXEC must depend on (!SMP && X86_LOCAL_APIC)

From: Adrian Bunk
Date: Wed Jun 28 2006 - 16:48:11 EST


On Wed, Jun 28, 2006 at 11:35:15AM -0600, Eric W. Biederman wrote:
>
> Adrian Bunk <bunk@xxxxxxxxx> writes:
> > This patch fixes the following issue with CONFIG_SMP=y and
> > CONFIG_X86_VOYAGER=y:
> >
> > <-- snip -->
> >
> > ...
> > CC arch/i386/kernel/crash.o
> > arch/i386/kernel/crash.c: In function âcrash_nmi_callbackâ:
> > arch/i386/kernel/crash.c:113: error: implicit declaration of function
> > âdisable_local_APICâ
> >
> > <-- snip -->
>
> I think the patch below more correctly captures the dependency.
>
> In truth that call to disable_local_APIC() is a bug but the kernel
> isn't ready yet to boot in apic only mode, so it remains until
> the apic initialization can be moved into init_IRQ.
>
> Does this sound good?

It does compile (I can't test it due to lack of hardware).

> Eric

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed

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