[Openchrome-users] Could not lock DMA pages

Thomas Hellström unichrome
Wed Dec 28 22:16:18 PST 2005


MagicITX wrote:

>
>
> On 12/28/05, *Thomas Hellstr?m* <unichrome at shipmail.org 
> <mailto:unichrome at shipmail.org>> wrote:
>
>     Hi!
>
>     MagicITX wrote:
>
>     >
>     >
>     > On 12/24/05, *Thomas Hellstr?m* <unichrome at shipmail.org
>     <mailto:unichrome at shipmail.org>
>     > <mailto:unichrome at shipmail.org <mailto:unichrome at shipmail.org>>>
>     wrote:
>     >
>     >     > On 12/23/05, Thomas Hellstr?m <unichrome at shipmail.org
>     <mailto:unichrome at shipmail.org>
>     >     <mailto:unichrome at shipmail.org
>     <mailto:unichrome at shipmail.org>>> wrote:
>     >     >>
>     >     >> MagicITX wrote:
>     >     >>
>     >     >> > I know this isn't a unichrome error but thought someone
>     here
>     >     might be
>     >     >> > able to help.  I installed unichrome, libxvmc and drm
>     from the
>     >     >> > unichrome-20051116 snapshot.  I installed VLC (Videolan
>     Client)
>     >     >> > 0.8.1_r1 using Gentoo's emerge.  When I run vlc it get a
>     >     string of
>     >     >> > these in the log:
>     >     >> >
>     >     >> > [drm:via_build_sg_info] *ERROR* Could not lock DMA pages.
>     >     >> >
>     >     >> > On the display is a green block.  Any ideas?
>     >     >>
>     >     >> We've had similar error reports before, but I've been
>     unable to
>     >     >> reproduce it.
>     >     >> Basically it is the drm being handed memory that does not
>     >     belong to the
>     >     >> user.
>     >     >>
>     >     >> What hardware is this?
>     >     >> What does the Xorg.0.log say? (Compressed, please)
>     >     >> Does Xine -V xv work with the same stream.
>     >     >> Does mplayer work with the same stream?
>     >     >>
>     >     >> /Thomas
>     >     >
>     >
>     >     Hi!
>     >
>     >     >
>     >     > This is a VIA EPIA M10000 system.  I put my Xorg online at
>     >     > http://www.magicitx.com/pub/Xorg.0.log
>     >     > I'm trying to play a DVD with vlc when I get the error.  I
>     don't
>     >     have Xine
>     >     > on the system and still working on xvmc for mplayer.  I'll
>     focus on
>     >     > mplayer
>     >     > today so I can give more information.  Watching live-tv with
>     >     MythTV works
>     >     > fine including xvmc.
>     >     >
>     >     > Thanks
>     >     >
>     >     > --
>     >     >
>     >     > Tim
>     >     > www.magicitx.com <http://www.magicitx.com>
>     <http://www.magicitx.com>
>     >     >
>     >
>     >     The error is Xv-related, so it would be interesting to know
>     whether Xv
>     >     works for the other players you have with the same stream.
>     XvMC uses
>     >     another DRM path.
>     >
>     >     /Thomas
>     >
>     >
>     >
>     > The system were I got this error broke.  It would stay up for
>     about 10
>     > minutes then freeze hard.  It didn't matter what I was running
>     or not
>     > running.  Rebooting didn't do any good unless I waited for a
>     while.  I
>     > suspect a component on the motherboard has heat problems.
>     >
>     > So I replace the motherboard and the problem with vlc went
>     away.  Was
>     > it due to the motherboard problem?  A BIOS setting?  This one may
>     > remain a mystery.
>     >
>     > Thanks for the help Thomas.
>
>     Great. Can you just verify (if the problem should re-emerge for you or
>     for somebody else)
>
>     a) that this is a CLE266 chipset,
>     b) you have the line "[Xv] Using PCI DMA for Xv image transfer."
>     in your
>     Xorg.0.log.
>     c) vlc works fine.
>
>     Regards,
>     Thomas
>
>     >
>     > --
>     >
>     > Tim
>     > www.magicitx.com <http://www.magicitx.com>
>     <http://www.magicitx.com <http://www.magicitx.com>>
>
>
>
>
> a. This is a CLE266 north bridge.
> b. No, I don't have that line in the Xorg.0.log file.  Hmmm
> c. vlc works find with both dvd's and files.
>
Then b) might be the difference. That line should be there if you use 
the latest openChrome driver and have dri enabled.

/Thomas

> -- 
>
> Tim
> www.magicitx.com <http://www.magicitx.com>


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