X11 on domU

[Julian Davison <julian-xen_devel@tech.cbhs.school.nz>]

Hi,

I'm not certain whether this belongs in 'users' or 'devel',
the topic appears to turn up in both lists. I've tried 'users'
but with no joy...

What we'd like to do is run several independant X11's on a
single CPU box. Using on-board (AGP) graphics, and additional
(PCI) graphics cards, and various USB controllers for the
keyboard/mice combos.
The aim is to have three 'consoles', each with a browser
running to provide access to our library catalogue. With
Xen we should be able to isolate each console in its own
dom, ensuring that one user can't so easily ruin others
functionality.

I'm running Debian 3.1 sarge/stable as dom0.
I've got Xen 3.0.2 stable sources and built them with
to include the pciback module. Using pciback I can happily
have various devices show up in domU (ethernet, USB controller
and graphics) with things like 'lspci'. The obvious stuff
just plain works - I can use the ethernet card instead of
the virtual ethernet, find USB devices.
I 'upgraded' domU to debian unstable, to get a more
recent Xorg setup, but I still get stuck.

Using "X -novtswitch -sharevts vt1" I ended up being told:

-------------- copy of end of X output starts --------------
(EE) I810(0): Cannot map SYS BIOS

Fatal server error:
xf86MapVidMem: Could not mmap framebuffer (0x000a0000,0x10000) (Bad address)
--------------  copy of end of X output ends  --------------

At this point I'm out of ideas :)

Anyone have any pointers or ideas?




J,


-- 
Julian Davison
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