Messages in this thread | | | Date | Tue, 09 Jan 2007 20:53:57 -0600 | From | Robert Hancock <> | Subject | Re: PCI BIOS Bug messages |
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Vasudevan S wrote: > I run Fedora Core 6 on the 'compaq nc6320' laptop. I am using the > '2.6.19.1' kernel. > > While booting the kernel, I noticed the following error message: > > PCI: BIOS Bug: MCFG area at f8000000 is not E820-reserved > PCI: Not using MMCONFIG. > > After some search, I commented out the 'e820_all_mapped()' check in > the 'pci_mmcfg_init()' function. I no longer see this message and MMCONFIG > method seems to be used now. > > Is this the right thing to do?
Maybe on that box you can get away with it, but I believe the purpose of the check is to weed out BIOSes that have totally broken MCFG tables. I think there is some work going on to be able to check and/or bash the chipset registers manually on various chipsets to reduce our reliance on the BIOS getting this right..
-- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/
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