On Thu, 11 May 2006 09:11:40 +0100 Matthew Garrett wrote:
> On Thu, May 11, 2006 at 11:16:08AM +0900, Tejun Heo wrote:
>
> > I'm not very sure but it might be historical. ahci got implemented
> > after ata_piix and in the meantime ata_piix must have handled all it
> > could. Can you verify whether modifying the code to return -ENODEV work
> > for your machine? If so, that could be the correct solution but I'm a
> > bit worried because it could change probing order or fail to enable
> > devices it used to. Maybe we need a hack to return -ENODEV iff ahci is
> > there to handle the device.
>
> I can verify that just loading ahci before ata_piix is successful, and
> udev will load both of them since the PCI IDs match. So just having
> ata_piix refuse to bind would solve the problem. Unfortunately I can't
> see a way of doing this only if ahci is present if they're modular...
Does the 'combined_mode' kernel parameter help any?
---
~Randy
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