HT CPU handling - 2.6.2

[Hod McWuff]

I've got a 2.0A GHz P4, advertised as non-hyperthread, that seems to be
reporting the presence of a second CPU. It also seems to be disabled by
setting bit 7 of its ID. I've tried compiling with support for 130 CPU's
and nothing changed. What would have to be done to get this disabled
CPU half back online?

Feb  9 04:45:03 pug ACPI: Local APIC address 0xfee00000
Feb  9 04:45:03 pug ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
Feb  9 04:45:03 pug Processor #0 15:2 APIC version 20
Feb  9 04:45:03 pug ACPI: LAPIC (acpi_id[0x02] lapic_id[0x81] disabled)
Feb  9 04:45:03 pug Processor #129 invalid (max 16)
Feb  9 04:45:03 pug ACPI: LAPIC_NMI (acpi_id[0x01] dfl dfl lint[0x1])
Feb  9 04:45:03 pug ACPI: LAPIC_NMI (acpi_id[0x02] dfl dfl lint[0x1])

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