linux-kernel - Re: BAD_SG_DMA panic in aha1542

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Message-ID: <20070430175208.GQ21015@kernel.dk>
Date:	Mon, 30 Apr 2007 19:52:08 +0200
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Christoph Hellwig <hch@...radead.org>,
	James Bottomley <James.Bottomley@...elEye.com>,
	Bob Tracy <rct@...rkin.frus.com>, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org
Subject: Re: BAD_SG_DMA panic in aha1542

On Mon, Apr 30 2007, Christoph Hellwig wrote:
> On Mon, Apr 30, 2007 at 07:32:45PM +0200, Jens Axboe wrote:
> > It's due to the crappy ->generic_packet() ioctl stuff, it bypasses the
> > block layer. So that needs to be converted to use block pc requests and
> > the block layer interface, then things will just work.
> > 
> > Christoph had a sort-of ready patch for that some time ago. Christoph,
> > did that ever materialize into a full blown patch?
> 
> I had a fullblown patch somewhere.  The only drawback was that I didn't
> convert pcd because I neither understand enough of the hardware nor do
> I really understand what's going on there.

Cool, pass the patch and I'll try to see if I can convert pcd.

-- 
Jens Axboe

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