[LinuxBIOS] K8 machine check exception

[Jia Jianwei]

I'm using amd serenade board, when boot kernel, there is a machine check
exception,    It happens when the kernel try to access PCI bus.   Please
give me some clues,  Thanks!

Machine Check Exception: 0000000000000007
Bank 3: b40000000000083b at 000000fdfc000cfe
Kernel panic: Unable to continue

Best regards,
Jianwei