> On my buggy computer i get
> cat dmesg09 | grep "MM\|MCFG"
> ACPI: MCFG (v001 A M I OEMMCFG 0x05000602 MSFT 0x00000097) @ 0x000000003ffb0410
> PCI: BIOS Bug: MCFG area is not E820-reserved
> PCI: Not using MMCONFIG.
> PCI-DMA: Disabling IOMMU.
I'm getting exactly the same messages, just the numbers in the MCFG line are
different:
root@arcus:~# dmesg | grep "MM\|MCFG"
ACPI: MCFG (v001 A M I OEMMCFG 0x11000524 MSFT 0x00000097) @ 0x000000003f7d03f0
PCI: BIOS Bug: MCFG area is not E820-reserved
PCI: Not using MMCONFIG.
PCI-DMA: Disabling IOMMU.
It's on a MSI motherboard with Intel 945 chipset (MS-7210). The machine
otherwise works very well.
The "Disabling IOMMU" message I'm getting also on another, Nvidia NF4/Opteron
based board, without this MCFG bug. I think it's unrelated and because Linux
properly detected the BIOS bug and probably fixed it, I think the MCFG message
is harmless.
With regards, Pavel Troller
-
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
