linux-kernel - Re: [Regression] 2.6.25-rc4-git3: Handling of audio CDs broken on pata

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Date:	Mon, 10 Mar 2008 21:03:45 +0900
From:	Tejun Heo <htejun@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Andrey Borzenkov <arvidjaar@...l.ru>, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org
Subject: Re: [Regression] 2.6.25-rc4-git3: Handling of audio CDs broken on
 pata_ali

Tejun Heo wrote:
> Tejun Heo wrote:
>> Rafael J. Wysocki wrote:
>>>>> where ata1 is:
>>>>>
>>>>> scsi0 : pata_ali
>>>>> scsi1 : pata_ali
>>>> Oh, is it only with audio CDs? I am unable to use DVD on pata_ali in DMA at
>>>> all. Have you tried to disable ATAPI DMA (libata.dma=1)?
>>> Data CDs seem to work fine here.
>> * Does booting into runlevel 1, putting in an audio cd and running
>> cdparanoia give the same result?
>>
>> * Does setting module parameter libata.force to "1.00:pio4" make any
>> difference?
> 
> Oh, never mind.  I have a hunch.  I'll report back in a while.
> 

Does the attached patch fix the problem?

-- 
tejun

View attachment "use-cmd_type-in-atapi-dma-check.patch" of type "text/x-patch" (1053 bytes)