Date: Wed, 28 Jan 2009 18:21:28 +0100 From: Dan Lukes <dan@obluda.cz> To: Tom Everett <tom@khubla.com> Cc: freebsd-acpi@freebsd.org Subject: Re: SMP Problem on IBM x330 Server Message-ID: <49809418.1000802@obluda.cz> In-Reply-To: <49808D1D.8030709@khubla.com> References: <497F4857.1060005@khubla.com> <200901280911.30748.jhb@freebsd.org> <49808D1D.8030709@khubla.com>
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>> Please provide the output of 'acpidump -t'. It seems the BIOS is not
>> including both CPUs in the table it gives to the OS.
> After running the BIOS diagnostics, it seems that the BIOS has disabled
> the processor.
True:
> APIC: Length=94, Revision=1, Checksum=217,
> Type=Local APIC
> ACPI CPU=0
> Flags={ENABLED}
> APIC ID=3
>
> Type=Local APIC
> ACPI CPU=1
> Flags={DISABLED}
> APIC ID=0
Second CPU is disabled.
The FreeBSD say so:
> APIC: Using the MADT enumerator.
> MADT: Found CPU APIC ID 3 ACPI ID 0: enabled
> SMP: Added CPU 3 (AP)
> MADT: Found CPU APIC ID 0 ACPI ID 1: disabled
It may be CPU failure detected during POST. Or broken CMOS content,
sometime (try clear CMOS content).
Dan
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