linux-kernel - Re: 2.6.23-rc9-git4: pata_pcmcia, disabling IRQ #9 and Re: libata and legacy ide pcmcia failure

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Message-id: <47E39963.2090908@verizon.net>
Date:	Fri, 21 Mar 2008 07:17:55 -0400
From:	"Peter F. Patel-Schneider" <pfps@...izon.net>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Tejun Heo <htejun@...il.com>, linux-kernel@...r.kernel.org,
	"Peter F. Patel-Schneider" <pfps@...earch.bell-labs.com>
Subject: Re: 2.6.23-rc9-git4: pata_pcmcia,
 disabling IRQ #9 and Re: libata and legacy ide pcmcia failure

Alan Cox wrote:
> On Fri, 21 Mar 2008 10:38:31 +0900
> Tejun Heo <htejun@...il.com> wrote:
>
>   
>> Alan Cox wrote:
>>     
>>> O> Mar 20 19:51:45 idefix kernel: ata12: PATA max PIO0 cmd 0xa100 ctl 
>>>       
>>>> 0xa10e irq 3
>>>> Mar 20 19:52:15 idefix kernel: ata12.00: qc timeout (cmd 0x91)
>>>> Mar 20 19:52:15 idefix kernel: ata12.00: failed to IDENTIFY 
>>>> (INIT_DEV_PARAMS failed, err_mask=0x4)
>>>>         
>>> Thinkpad T61p .. I've seen a few of these.
>>>
>>> Firstly try the card and adapter in a different PC and let me know if
>>> that works. So far they do. If that is the case get the latest firmware
>>> updates (BIOS etc) for your thinkpad and see if the problem goes away.
>>> They (or our ACPI code I guess it may be) have some serious IRQ routing
>>> problems on this box.
>>>       
>> Any chance the thing just chokes up on INIT_DEV_PARAMS?
>>     
>
> Possibly but I've seen several previosu reports showing no IRQ being
> delivered off these machines. You get IRQ 3 reported as assigned and an
> IRQ 9 turns up.
>
> Alan
>
>   
How can I check to see if this is the case?  How would this explain that 
the adapter and card sometimes work when they are in when the system boots?

peter

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