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

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Message-ID: <47427570.5030103@gmail.com>
Date:	Tue, 20 Nov 2007 14:49:36 +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:
> It looks like the problem is that even though we set the DMA mask after
> we allocate the PRD and pad buffers, when the other port is set up, the
> DMA mask is already over 64-bit and so it allocates its buffers over 4GB
> and fails. I think we just need to explicitly set to 32-bit first,
> getting the reporter to try that one now.

Ah.. right.  That makes sense.  Thanks.

-- 
tejun
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