[Xen-users] Problem initializing dual-core Opteron

["John Hannfield" <hal9020@xxxxxxxxx>]

Hello,
I'm trying xen on a dual core Opteron 265 system, but it won't boot.
I've tried source installs, and binary installs of both 3.0.2 and 3.0.3. All are the
same. When it tries to bring the CPU's online it reboots the machine.

(XEN) Processor #0 15:1 APIC version 15
(XEN) ACPI: LAPIC (acpi_id[0x00]
(XEN) Processor #1 15:1 APIC version 15
(XEN) Enabling APIC mode: Flat.  Using 1 I/O APICs
(XEN) Using ACPI (MADT) for SMP configuration
(XEN) Initialising CPU#0
(XEN) Detected 1800.353 Mhz Processor
(XEN) CPU0: AMD Flush filter disabled
(XEN) CPU: L1 cache 64k (64byes/line), 3 cache
(XEN) CPU: L2 cache 1024k (64 bytes/line)
(XEN) CPU 0(2) -> Core 0
(XEN) Intel machine check architecture supported
(XEN) Intel machine check reporting enabled on CPU#0
(XEN) CPU0: AMD Dual Core Opteron(tm) Processor 265 stepping 02
(XEN) Booting processor 1/1 sip 90000
(XEN) Initialising CPU#1

Then the machine reboots.

Motherboard: Tyan K8WE S2877
This is a dual processor, dual core board, but I only have one Opteron265 installed.
The machine boots fine (and can see both cores) on a non xen 
2.6.16.29 kernel.

Have I reached a machine check exception?
Any ideas on what to customize in the xen kernel to get it to boot?
-- 

John
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