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From: Robert Hancock <hancockr@shaw.ca>
To: Chuck Ebbert <cebbert@redhat.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
	Karl Bellve <Karl.Bellve@umassmed.edu>,
	linux-kernel@vger.kernel.org
Subject: Re: PCI: Unable to reserve mem region problem
Date: Mon, 10 Sep 2007 19:44:32 -0600	[thread overview]
Message-ID: <46E5F300.20602@shaw.ca> (raw)
In-Reply-To: <fa.xf8XcHy8Nla3C3Q0MmArV00z04k@ifi.uio.no>

Chuck Ebbert wrote:
> On 09/05/2007 08:31 PM, Alan Cox wrote:
>> On Wed, 05 Sep 2007 10:32:38 -0400
>> "Karl Bellve" <Karl.Bellve@umassmed.edu> 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 hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/


       reply	other threads:[~2007-09-11  1:45 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <fa.kIR1dSmxlPM+uRVmi9kPkHkX/W8@ifi.uio.no>
     [not found] ` <fa.mWCFmDlYQmMO/aBFdKFbo8OVII4@ifi.uio.no>
     [not found]   ` <fa.xf8XcHy8Nla3C3Q0MmArV00z04k@ifi.uio.no>
2007-09-11  1:44     ` Robert Hancock [this message]
2007-09-11 10:16       ` PCI: Unable to reserve mem region problem Alan Cox
2007-09-05 14:32 Karl Bellve
2007-09-05 17:35 ` Chuck Ebbert
2007-09-06  0:31 ` Alan Cox
2007-09-07 14:56   ` Chuck Ebbert

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