linux-kernel - Re: [PATCH] i386/bigsmp: eliminate false warnings regarding logical APIC ID mismatches

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Date:	Mon, 26 Sep 2011 12:13:53 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	JBeulich@...e.com, tj@...nel.org, tglx@...utronix.de, hpa@...or.com
Cc:	Stratos Psomadakis <psomas@...too.org>, mingo@...e.hu,
	stable@...nel.org, tj@...nel.org, tglx@...utronix.de,
	linux-kernel@...r.kernel.org, hpa@...or.com
Subject: Re: [PATCH] i386/bigsmp: eliminate false warnings regarding logical
 APIC ID mismatches

> >> --- 3.1-rc2/arch/x86/kernel/apic/probe_32.c
> >> +++ 3.1-rc2-i386-bigsmp-early-lapicid-override/arch/x86/kernel/apic/probe_32.c
> >> @@ -203,7 +203,18 @@ void __init default_setup_apic_routing(v
> >>  	if (!cmdline_apic && apic == &apic_default) {
> >>  		struct apic *bigsmp = generic_bigsmp_probe();
> >>  		if (bigsmp) {
> >> +			unsigned int cpu;
> >> +
> >>  			apic = bigsmp;
> >> +			for_each_possible_cpu(cpu) {
> >> +				if (early_per_cpu(x86_cpu_to_logical_apicid,
> >> +						  cpu) == BAD_APICID)
> >> +					continue;
> >> +				early_per_cpu(x86_cpu_to_logical_apicid,
> >> +					      cpu) =
> >> +					bigsmp->x86_32_early_logical_apicid
> >> +						(cpu);
> >> +			}
> >>  			printk(KERN_INFO "Overriding APIC driver with %s\n",
> >>  			       apic->name);
> >>  		}
> > Will this patch be included in 3.1 (so that it gets merged in 3.0-stable
> > kernels sooner too) or will it go for 3.2?
> 
> That can only be answered by the maintainers (on Cc), not me - afaict
> it didn't even get applied to -tip yet.

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