Xen users - Dec 2006 - hvm instance crashes when X is running

hi all,

i have a strange behavior on opensuse 10.2 GM.

kernel-xen-2.6.18.2-34
xen-3.0.3_11774-20

when i try to setup a fullvirtualized xen instance, the vm crashes randomly
during installation.

i found out, that always before the crashes my X Server Screen gets corrupted a
little bit.
i switched to runlevel 3 and tried again and everthing worked. to make sure that
it wasn''t luck,
i reinstalled and everything worked again

so i guess, that the problem lies in my shared memory GPU (Intel 945gm using
i810 driver)
i suppose that the GPU and the xen instance use the same memory.

Is there a way to fix this?

thanks for your help,
tomás

my xen config:

 disk = [ ''file:/var/lib/xen/images/vm2/hda,ioemu:hda,w'',
''file:/home/tschwarz/isos/WindowsXPPro.iso,hdc:cdrom,r'' ]
memory = 512
vcpus = 1
builder = ''hvm''
device_model = ''/usr/lib/xen/bin/qemu-dm''
kernel = ''/usr/lib/xen/boot/hvmloader''
name = ''vm2''
vif = [ ''type=ioemu,mac=00:16:3e:64:c7:4a'' ]
stdvga = 0
sdl = 1
vnc = 0
vncviewer = 0
ne2000 = 0
localtime = 0
on_poweroff = ''destroy''
on_reboot = ''destroy''
on_crash = ''destroy''
boot = ''d''



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I noticed you had SDL=1 in your HVM domain''s
config file.

I''ve got several Windows running as HVM domain
as well as para-virtualized Linux guests.

I''ve done quite some install of Windows system.

In my experience SDL was buggy and causing 
X to freeze: Core 2 Duo / Asus P5LD2 / ATI X300SE,
Debian ''etch'' + Xen 3.0.3 from src
+ Linux 2.6.16.29.

You could try to use VNC instead.

That said I found it easier to do the full
Windows install using qemu (it''s really slow),
then turn "remote desktop" / terminal-service
on in the Windows system, then boot it from
Xen.

As a sidenote some of the freeze I had weren''t
complete crash:  I could still use the magic
SysRQ key combo to send message to the system
to do an "vga_reset" (a little utility I d/l''ed
that helped to reset the graphic card when it''s
in a bad state).




	

	
		
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