Re: [PATCH 3/3] PCI: allocate bus resources from the top down

[H. Peter Anvin]

On 09/15/2010 02:09 PM, Bjorn Helgaas wrote:
> 
> On the machine above (a Dell T3500), the [mem 0xbff00000-0xbfffffff] region
> doesn't actually work and is likely a BIOS defect.  The symptom is that we
> move the AHCI controller to 0xbff00000, which leads to "Boot has failed,
> sleeping forever," a BUG in ahci_stop_engine(), or some other boot failure.
> 

Acked-by: H. Peter Anvin <hpa@xxxxxxxxx>

... for the patch in general, but I would like to *also* request a DMA
or PCI quirk to explicitly reserve the above range on the affected Dell
machines.

	-hpa
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