NMI kernel message after today's F8 updates

[Mike]

After today's F8 updates I am seeing in /var/log/dmesg

PCI: Setting latency timer of device 0000:00:01.0 to 64
assign_interrupt_mode Found MSI capability
Allocate Port Service[0000:00:01.0:pcie00]
Uhhuh. NMI received for unknown reason a1 on CPU 0.
You have some hardware problem, likely on the PCI bus.
Dazed and confused, but trying to continue
PCI: Setting latency timer of device 0000:00:1c.0 to 64
assign_interrupt_mode Found MSI capability
Allocate Port Service[0000:00:1c.0:pcie00]
Allocate Port Service[0000:00:1c.0:pcie02]
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
ACPI: CPU0 (power states: C1[C1] C2[C2] C3[C3] C4[C3])
ACPI: Processor [CPU0] (supports 8 throttling states)
ACPI Exception (processor_core-0819): AE_NOT_FOUND, Processor Device is not
 present [20070126]
ACPI: Thermal Zone [THM] (56 C)

The machine continues to book OK... this happened after and update quite a 
while back but stopped happening after a further update was available soon
after that. However with F8 my machine has been solid until now.

Machine is a Dell D610 with Core Duo ...