linux-kernel - Re: [PATCH] Re: More than 2Gb problem (dvb related) ?

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Message-ID: <20070429140753.GA6677@gmail.com>
Date:	Sun, 29 Apr 2007 16:07:53 +0200
From:	Gregoire Favre <Gregoire.Favre@...il.com>
To:	Jon Burgess <jburgess777@...glemail.com>
Cc:	linux-dvb@...uxtv.org, v4l-dvb-maintainer@...uxtv.org,
	Markus Rechberger <mrechberger@...il.com>,
	linux-kernel@...r.kernel.org, Lee Revell <rlrevell@...-job.com>
Subject: Re: [PATCH] Re: More than 2Gb problem (dvb related) ?

On Sat, Apr 28, 2007 at 09:14:37PM +0100, Jon Burgess wrote:

> While the above patch works, it seems the underlying causes is that
> vmalloc_32() is providing memory above 4Gb on x86-64 which is not what
> the driver expects. This same issue came up a few weeks ago with regards
> to DRM on radeon http://lkml.org/lkml/2007/4/1/257
> 
> Andi Kleen included a patch to ensure vmalloc_32() returns memory <4Gb
> in a patch which is currently in -mm
>  http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.21-rc7/2.6.21-rc7-mm2/broken-out/x86_64-mm-vmalloc-32.patch
> 
> With this patch applied the current driver appears to work OK. 
> 
> Attached is a smaller patch against v4l-dvb which just adds the missing
> pci_unmap_sg() call.
> 
> 	Jon
> 
> Signed-off-by: Jon Burgess <jburgess777@...glemail.com>

Tremendous : after a perfect weekend for paragliding a solution appear
here :-)

I hope both patch will be included very soon ;-)

And it's works perfectly, thank you very much,
-- 
Grégoire FAVRE  http://gregoire.favre.googlepages.com  http://www.gnupg.org
               http://picasaweb.google.com/Gregoire.Favre
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