Re: PCI: Unable to reserve mem region problem

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Chuck Ebbert wrote:
On 09/05/2007 08:31 PM, Alan Cox wrote:
On Wed, 05 Sep 2007 10:32:38 -0400
"Karl Bellve" <[email protected]> wrote:

Please CC any response. Thanks.

I am having an issue with a Supermicro h8dce motherboard and failure to recognize a 5th SATA drive after upgrading to Fedora 7.
Can you send me an lspci -vvxxx so that I can look into this. Might be a
few days with the kernel summit but it should give a clue and may be
linked to ADMA mode

It's in RH bugzilla:

https://bugzilla.redhat.com/show_bug.cgi?id=280641

The last BAR on the nForce4 ADMA controllers on this board are at 0xdfefe000 and 0xdfefd000. But it looks like PnP ACPI is also reserving those memory ranges:

Aug 30 14:08:02 alcor kernel: pnp: 00:09: iomem range 0xdfefd000-0xdfefd3ff has been reserved Aug 30 14:08:02 alcor kernel: pnp: 00:09: iomem range 0xdfefe000-0xdfefe3ff has been reserved

Which I very much doubt it should be doing, the BIOS doesn't need to reserve PCI BAR ranges in the ACPI tables. This sounds like a BIOS bug. You might want to check for an update from Supermicro.

--
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from [email protected]
Home Page: http://www.roberthancock.com/

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