linux-kernel - Re: [PATCH 2/2] sata_nv: fix ATAPI issues with memory over 4GB (v3)

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Message-ID: <473BC6FE.8090700@gmail.com>
Date:	Thu, 15 Nov 2007 13:11:42 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Robert Hancock <hancockr@...w.ca>
CC:	linux-kernel <linux-kernel@...r.kernel.org>,
	ide <linux-ide@...r.kernel.org>, Jeff Garzik <jeff@...zik.org>
Subject: Re: [PATCH 2/2] sata_nv: fix ATAPI issues with memory over 4GB (v3)

Robert Hancock wrote:
> Tejun Heo wrote:
>> Robert Hancock wrote:
>>> This fixes some problems with ATAPI devices on nForce4 controllers in
>>> ADMA mode
>>> on systems with memory located above 4GB. We need to delay setting
>>> the 64-bit
>>> DMA mask until the PRD table and padding buffer are allocated so that
>>> they don't
>>> get allocated above 4GB and break legacy mode (which is needed for ATAPI
>>> devices).
>>>
>>> Signed-off-by: Robert Hancock <hancockr@...w.ca>
>>
>> applied to #tj-upstream-fixes.
>>
> 
> I have a report that these patches crashed but the previous patch worked:
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=351451
> 
> So there may still be a problem here.

Hmmm... The change seemed safe to me.  Anyways, dropping the patch for
now.  Please re-send later.  Also, please format patch description such
that it fits in 80c.

Thanks.

-- 
tejun
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