From: Muli Ben-Yehuda <muli@il.ibm.com>
To: Erik Andersen <andersen@codepoet.org>
Cc: Karsten Weiss <K.Weiss@science-computing.de>,
Christoph Anton Mitterer <calestyo@scientia.net>,
linux-kernel@vger.kernel.org, Chris Wedgwood <cw@f00f.org>
Subject: Re: data corruption with nvidia chipsets and IDE/SATA drives // memory hole mapping related bug?!
Date: Thu, 14 Dec 2006 11:56:13 +0200 [thread overview]
Message-ID: <20061214095613.GJ6674@rhun.haifa.ibm.com> (raw)
In-Reply-To: <20061214095235.GA10208@codepoet.org>
On Thu, Dec 14, 2006 at 02:52:35AM -0700, Erik Andersen wrote:
> 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...
Yikes! do you know which one actually handles the DMA mappings? I
suspect a missnig unmap or sync, which swiotlb requires to sync back
the bounce buffer with the driver's buffer.
Cheers,
Muli
next prev parent reply other threads:[~2006-12-14 9:56 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.64.0612021202000.2981@addx.localnet>
2006-12-11 9:24 ` Karsten Weiss
2006-12-12 6:18 ` amd64 iommu causing corruption? (was Re: data corruption with nvidia chipsets and IDE/SATA drives // memory hole mapping related bug?!) Chris Wedgwood
2006-12-13 19:18 ` data corruption with nvidia chipsets and IDE/SATA drives // memory hole mapping related bug?! Christoph Anton Mitterer
2006-12-13 19:53 ` Chris Wedgwood
2006-12-13 20:34 ` Karsten Weiss
2006-12-14 9:22 ` Muli Ben-Yehuda
2006-12-14 11:38 ` [PATCH] " Karsten Weiss
2006-12-14 11:56 ` Muli Ben-Yehuda
2006-12-14 13:16 ` [PATCH 2nd try] " Karsten Weiss
2006-12-14 18:10 ` Muli Ben-Yehuda
2006-12-23 2:04 ` Christoph Anton Mitterer
2006-12-23 2:56 ` John A Chaves
2006-12-23 3:26 ` Christoph Anton Mitterer
2006-12-13 19:20 ` Christoph Anton Mitterer
2006-12-13 19:54 ` Chris Wedgwood
2006-12-13 19:57 ` Christoph Anton Mitterer
2006-12-13 22:39 ` Lennart Sorensen
2006-12-13 23:00 ` Christoph Anton Mitterer
2006-12-13 19:53 ` Erik Andersen
2006-12-13 19:59 ` Karsten Weiss
2006-12-13 20:02 ` Christoph Anton Mitterer
2006-12-13 20:29 ` Erik Andersen
2006-12-13 20:32 ` Christoph Anton Mitterer
2006-12-13 23:33 ` Christoph Anton Mitterer
2006-12-14 9:24 ` Muli Ben-Yehuda
2006-12-14 19:23 ` Christoph Anton Mitterer
2006-12-14 9:23 ` Muli Ben-Yehuda
2006-12-14 9:52 ` Erik Andersen
2006-12-14 9:56 ` Muli Ben-Yehuda [this message]
2007-01-03 15:02 ` Christoph Anton Mitterer
2007-01-04 13:04 ` Christoph Anton Mitterer
2007-03-22 14:48 Dan Halbert
[not found] <fa.E9jVXDLMKzMZNCbslzUxjMhsInE@ifi.uio.no>
2007-01-03 23:41 ` Robert Hancock
2007-01-15 22:56 ` Christoph Anton Mitterer
2007-01-15 23:05 ` Christoph Anton Mitterer
2007-01-16 0:23 ` Robert Hancock
2007-01-16 13:54 ` Christoph Anton Mitterer
2007-01-16 14:26 ` Robert Hancock
2007-03-22 12:32 ` Christoph Anton Mitterer
-- strict thread matches above, loose matches on Subject: below --
2006-12-15 15:57 Paul Slootman
2006-12-02 0:56 Christoph Anton Mitterer
2006-12-02 1:15 ` Erik Andersen
2006-12-02 1:28 ` Christoph Anton Mitterer
2006-12-02 5:17 ` Chris Wedgwood
2006-12-02 12:10 ` Christoph Anton Mitterer
[not found] ` <20061202111644.GF9995@vianova.fi>
2006-12-08 2:16 ` Christoph Anton Mitterer
2006-12-02 11:00 ` Karsten Weiss
2006-12-02 11:37 ` Alan
2006-12-02 11:39 ` Christoph Anton Mitterer
2006-12-13 18:52 ` Christoph Anton Mitterer
2006-12-13 19:56 ` Karsten Weiss
2006-12-13 20:11 ` Christoph Anton Mitterer
2006-12-14 9:34 ` Chris Wedgwood
2007-01-15 22:26 ` Christoph Anton Mitterer
2006-12-14 23:39 ` Dax Kelson
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