Re: sata dvdroms fails to be recognized by MCP55 controller with the 2.6.26.5 kernel

[Tejun Heo <htejun@gmail.com>]

Andrew Morton wrote:
> (cc linux-ide)
> 
> On Tue, 30 Sep 2008 00:01:34 +0100 gettinther <gettinther@gmail.com> wrote:
> 
>> Hi,
>>
>> I'm currently trying to get the 2.6.26.5 kernel to work but cannot get
>> the sata dvdrom to be recognized by the MCP55.  The controller works
>> with the 2.6.24.4 and 2.6.25.17 kernels.  I had to use
>> CONFIG_ACPI_DOCK=y for the 2.6.25.17 but this did not work with the
>> 2.6.26.5.  The problem has been confirmed on at least 2 machines.
> 
> It's a regression.
> 
>> I have tried various boot options (pci=nomsi, acpi=off and any other
>> relevant code I could find) but nothing seems to work.  The odd thing
>> is the sata dvdrom was recognized twice by the 2.6.26.5 kernel (2
>> different kernel tests) for no apparent reason (could not get it to
>> work afterward).
>>
>> Here's the cut info for each kernel from /var/log/messages (2.6.25.17,
>> 2.6.26.5 working, 2.6.26.5 not working).  If you require further
>> information I can submit it. I don't want to put too much on the first
>> message.

Does irqpoll help?

-- 
tejun