linux-kernel - Re: 2.6.25-rc8-mm2: CONFIG_ATA_SFF: panic involving mount_block

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Date:	Sun, 13 Apr 2008 09:45:45 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Jeff Garzik <jeff@...zik.org>
CC:	Adrian Bunk <bunk@...nel.org>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Jeff Garzik <jgarzik@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: 2.6.25-rc8-mm2: CONFIG_ATA_SFF: panic involving	mount_block_root
 and down the road

Jeff Garzik wrote:
>>> Now raise hands those who knew that your ATA controller is SFF
>>> compliant.

/me raises a hand.

>> Is there any technical reason why we have to bother users with the 
>> ATA_SFF option at all?
>>
>> It sounds like a perfect canndidate for being select'ed.
> 
> 'default y' is appropriate, but option that is used to disable a major 
> swath of legacy code unneeded on modern FIS-based SATA platforms like AHCI.

Heh.. yeah, but I have to admit SFF support is cryptic.  We can 
definitely use some friendly explanation there.

-- 
tejun
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