Xen devel - Mar 2005 - "general protection faults" in dom0 when loading intel-agp module

Hi,

I wanted to try out Xen on my desktop since I''m playing around with
many
servers and would like to virtualize them on my notebook for development.

So, the problem is that at least dom0 (other would be nice but are not 
crucial - I just like playing with other Linux installations) should be a 
complete desktop environment.

But whenever I try to load intel-agp the systems gets a "general protection
fault". Compiling it into the kernel results in a immediate reboot as soon 
as the kernel arrives at the init of this code.

Is there anything know to make problems with 2.0.4 and intel-agp? I found in 
the archives that there was an issue with 2.0 but that should be solved. 
So, if anybody knows about current problems or even a solution to it, I 
would be grateful if (s)he tells me about it :-)

In case this behaviour is unknown (because no one else wants an 
3D-accelerated desktop with Xen ;-) ) I''m willing to send in more 
informations (whatever you need).

Thank you very much,

Marcel

-- 
Marcel Meyer
| Netzwerk- und Rechnerorganisation
| Fachschaft Mathematik/Physik/Informatik
| Technische Universität München


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> But whenever I try to load intel-agp the systems gets a 
> "general protection 
> fault". Compiling it into the kernel results in a immediate 
> reboot as soon 
> as the kernel arrives at the init of this code.
What chipset is this?
Does it still happen with 2.0-testing?
Ian
 
> Is there anything know to make problems with 2.0.4 and 
> intel-agp? I found in 
> the archives that there was an issue with 2.0 but that should 
> be solved. 
> So, if anybody knows about current problems or even a 
> solution to it, I 
> would be grateful if (s)he tells me about it :-)
> 
> In case this behaviour is unknown (because no one else wants an 
> 3D-accelerated desktop with Xen ;-) ) I''m willing to send in more 
> informations (whatever you need).
> 
> Thank you very much,
> 
> Marcel
> 
> -- 
> Marcel Meyer
> | Netzwerk- und Rechnerorganisation
> | Fachschaft Mathematik/Physik/Informatik
> | Technische Universität München
> 
> 
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from 
> real users.
> Discover which products truly live up to the hype. Start reading now.
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> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xen-devel
> 

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Am Mittwoch, 2. März 2005 15:02 schrieb Ian Pratt:
> > But whenever I try to load intel-agp the systems gets a
> > "general protection fault". Compiling it into the kernel
results in a
> > immediate reboot as soon as the kernel arrives at the init of this
code.
>
> What chipset is this?
> Does it still happen with 2.0-testing?
DELL Inspiron 8200 / P4 M / 512 MB RAM
Intel 845 (using CONFIG_AGP_INTEL=y)
ATI Radeon (using CONFIG_DRM_RADEON=y)
gcc 3.4.3

After installing the testing branch with a slightly configured xen Kernel, 
the intel-agp code works! However, I have to take LVM out of the kernel and 
even disconnect my FireWire HD from the notebook. Otherwise the kernel will 
hang. But I will start a new thread with that when I have more 
informations.

With -testing X loads but shows freaky artifacts. When the kernel uses 
framebuffer, it isn''t possible to switch between console and X. Without
framebuffer it works but X shows - how can I explain - the picture of the 
last console very small in wrong colors two times on the screen and with 
many colored dots in the background everywhere. Using AGPMODE=2 even lets 
my screen grow white (*shocked*). The X cursor works fine but no other 
wanted graphic (TWM menu) is painted. It is also possible to freeze X by 
just clicking around :-(

First, thanks for getting the module loaded :-)
Second, what more informations can I provide?

Thank you,
Marcel

-- 
Marcel Meyer
| Netzwerk- und Rechnerorganisation
| Fachschaft Mathematik/Physik/Informatik
| Technische Universität München


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