Re: [Xen-users] Xen + Nvidia drivers

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Waeyenbergh, Sven wrote:

> Anthony,
>
> that's weird, i did compile my own (xen 2 based) dom0 kernel from source,
> then proceeded in installing the nvidia drivers (using the .sh script they 
> provide)
> Obviously, no pre-made kernel modules were available,
> but the script was able to compile its own module (with the correct links in 
> /usr/src).
>  
The kernel module uses a binary layer with some open source code that 
uses the binary layer.  This allows them to not have to recompile the 
binary layer for every tiny driver change.
> I can't say i've used the graphic features of this system much (it's my server),
> but i did not hit any issues with this, works like a breeze.
>  
It's likely that you're not actually using the module.  Check lsmod and 
see what the ref count is.
Regards,

Anthony Liguori

> Ban
>
> -----Original Message-----
> From: Anthony Liguori [mailto:aliguori@xxxxxxxxxx]
> Sent: 17 November 2005 20:08
> To: mogensv@xxxxxxxxxxxxxxxx
> Cc: bregulla; xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] Xen + Nvidia drivers
>
>
> Mogens Valentin wrote:
>
>  
>
> > bregulla wrote:
> >
> >    
> >
> > > Hello,
> > >
> > > I try to get a Nvidia Quadro PCI-E graphics card to work with xen in 
> > > Dom0 with the binary nivida-drivers.
> > > I use the xen-2.0-testing tarball with kernel 2.6.12 and the nvidia 
> > > driver package NVIDIA-Linux-x86-1.0-7676-pkg1.
> > > The nvidia kernel module compiles without errors but when I try to 
> > > load it segfaults.
> > > Is it possibly because the tls-libs are disabled?
> > > Has anyone managed to get the nvidia drivers to work with xen? Or is 
> > > there a general problem with xen + nvidia?
> > >      
> This is a recipe for disaster.  The nVidia kernel driver has a binary 
> layer that it not Xen-ready.  It's very likely that it's going to be 
> doing something it's not supposed to do in Xen.
> You're out of luck until nVidia releases a Xen driver.  You can also use 
> the Open Source driver (or even just Vesa).
> This is why binary modules are so evil...
>
> Regards,
>
> Anthony Liguori
>
>  
>
> > Not sure I can help, but there's been general problems with nvidia 
> > driver for a looong time. Check the threads on nvnews.com .
> > Many still use the old 6629 driver, though it doesn't have as many 
> > fancy features as later drivers. Then again, you may not need 8x AA 
> > and AF...
> > Of cause those problems are not normally related to Xen, but you may 
> > wan't to give 6629 a try.
> >    
>
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