On 12/15/2010 02:01 PM, H. Peter Anvin wrote:
quoted text
> On 11/13/2010 05:38 PM, Yinghai Lu wrote:
>> Index: linux-2.6/arch/x86/kernel/acpi/boot.c
>> ===================================================================
>> --- linux-2.6.orig/arch/x86/kernel/acpi/boot.c
>> +++ linux-2.6/arch/x86/kernel/acpi/boot.c
>> @@ -198,6 +198,13 @@ static void __cpuinit acpi_register_lapi
>>  {
>>  	unsigned int ver = 0;
>>  
>> +#ifdef CONFIG_X86_64
>> +	if (id >= (MAX_APICS-1)) {
>> +		printk(KERN_INFO PREFIX "skipped apicid that is too big\n");
>> +		return;
>> +	}
>> +#endif
>> +
>>  	if (!enabled) {
>>  		++disabled_cpus;
>>  		return;
> 
> Why the #ifdef?

try to limit the affects to 32bit's bunch sub arch etc.

Thanks

	Yinghai

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