linux-kernel - Re: data corruption with nvidia chipsets and IDE/SATA drives // memory hole mapping related bug?!

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Date:	Thu, 14 Dec 2006 02:52:35 -0700
From:	Erik Andersen <andersen@...epoet.org>
To:	Muli Ben-Yehuda <muli@...ibm.com>
Cc:	Karsten Weiss <K.Weiss@...ence-computing.de>,
	Christoph Anton Mitterer <calestyo@...entia.net>,
	linux-kernel@...r.kernel.org, Chris Wedgwood <cw@...f.org>
Subject: Re: data corruption with nvidia chipsets and IDE/SATA drives // memory hole mapping related bug?!

On Thu Dec 14, 2006 at 11:23:11AM +0200, Muli Ben-Yehuda wrote:
> > I just realized that booting with "iommu=soft" makes my pcHDTV
> > HD5500 DVB cards not work.  Time to go back to disabling the
> > memhole and losing 1 GB.  :-(
> 
> That points to a bug in the driver (likely) or swiotlb (unlikely), as
> the IOMMU in use should be transparent to the driver. Which driver is
> it?

presumably one of cx88xx, cx88_blackbird, cx8800, cx88_dvb,
cx8802, cx88_alsa, lgdt330x, tuner, cx2341x, btcx_risc,
video_buf, video_buf_dvb, tveeprom, or dvb_pll.  It seems
to take an amazing number of drivers to make these devices
actually work...

 -Erik

--
Erik B. Andersen             http://codepoet-consulting.com/
--This message was written using 73% post-consumer electrons--
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