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From: Rui Paulo <rpaulo@freebsd.org>
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Date: Sun, 18 Apr 2010 11:39:35 +0100
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To: Alexander Motin <mav@FreeBSD.org>
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Subject: Re: SPOOFED: Re: SVN rev 206755 breakage
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On 18 Apr 2010, at 06:57, Alexander Motin wrote:

> Rui Paulo wrote:
>> On 17 Apr 2010, at 23:12, Michael Butler wrote:
>>> On 04/17/10 18:05, Rui Paulo wrote:
>>>> On 17 Apr 2010, at 22:34, Michael Butler wrote:
>>>>> The revision labeled:
>>>>> 
>>>>> SVN rev 206755 on 2010-04-17 11:40:39Z by rpaulo
>>>>> 
>>>>> Add another ICH7M chipset that works.
>>>>> 
>>>>> .. is incorrect and will cause some laptops to not boot.
>>>> So, in AHCI mode it doesn't find the disks?
>>> No - the driver fails to attach (ENXIO).
>> 
>> But since ahci failed to attach, won't atapci attach later?
> 
> If probe succeeded - no.
> 
>> Can you show me the dmesg?
> 
> More important probably would be `pciconf -lvcb`.
> 
> Intel controllers after ICH6 change both ID and set of resources,
> depending on AHCI enabled in BIOS. There is separate set of IDs for
> controllers with AHCI enabled. As I can see, Linux handles ID 0x27c4 as
> non-AHCI SATA. If for some reason this ID could be used for both modes
> (I have doubts),

It can be used in both modes. atapci used to attach to it on my MacBook.

> we may try to set AHCI_Q_NOFORCE flag to make driver
> check PCI class/subclass, if it is correct there.


Regards,
--
Rui Paulo