Xen users - Nov 2006 - SVM: Windows install Black Screen

Hi,
I''ve been attempting to install Windows XP SP2 in an HVM DomU.

I''m running Debian testing with xen-testing (3.0.3) on an AMD X2 64
(AM2).

The initial install of Windows is perfect, everything install without a
hitch (no more need for the F5 trick). However once the installation is
complete and windows "boots" for the first time after installation, I
see the qemu bios, then the VNC window size changes (as if windows is
changing the resolution), and it hangs at a black/blank screen. xm top
reports: CPU(sec) 1, CPU(%) = 0.0

I''ve tried this with many different settings in my hvm config: every
conceivable combination of the pae, acpi, and apic settings. I''ve also
tried NTFS and FAT during the install.

If I set the pae, acpi, and apic all to zero, I get the qemu bios, and
then a blank screen again, however the VN window size does not change,
and xm top reports: CPU(SEC) 201, CPU(%) = 99.0. So I can see that there
is some sort of race condition.

Has anyone had a similar issue or have any insight as to what the
problem may be?


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> -----Original Message-----
> From: xen-users-bounces@lists.xensource.com 
> [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Jess Mahan
> Sent: 02 November 2006 19:32
> To: xen-users@lists.xensource.com
> Subject: [Xen-users] SVM: Windows install Black Screen
> 
> Hi,
> I''ve been attempting to install Windows XP SP2 in an HVM DomU.
> 
> I''m running Debian testing with xen-testing (3.0.3) on an AMD X2
64
> (AM2).
> 
> The initial install of Windows is perfect, everything install 
> without a
> hitch (no more need for the F5 trick). However once the 
> installation is
> complete and windows "boots" for the first time after
installation, I
> see the qemu bios, then the VNC window size changes (as if windows is
> changing the resolution), and it hangs at a black/blank screen. xm top
> reports: CPU(sec) 1, CPU(%) = 0.0
> 
> I''ve tried this with many different settings in my hvm config:
every
> conceivable combination of the pae, acpi, and apic settings. I''ve
also
> tried NTFS and FAT during the install.
> 
> If I set the pae, acpi, and apic all to zero, I get the qemu bios, and
> then a blank screen again, however the VN window size does not change,
> and xm top reports: CPU(SEC) 201, CPU(%) = 99.0. So I can see 
> that there
> is some sort of race condition.
> 
> Has anyone had a similar issue or have any insight as to what the
> problem may be?
First of all do "ps ax|grep qemu" to see if you still have a living
QEMU
in the system. If not, try to see if /var/log/xen/qemu-dm*.log has
anything of interest in it (look for the latest one with "ls -ltr
/var/log/xen/qemu*"). 

There''s all sorts of possible reasons here, so it''s hard to
say what
could be wrong... But it seems like your BIOS isn''t quite working. 

It would probably also make sense to build Xen with "debug=y" and
connect a serial line to see if there''s anything "unusual"
being caught
by the debug code. 

--
Mats
> 
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
> 
> 
> 


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(Sorry, new list user here, cutting and pasting from the archives...)

I''m having the exact same problems that Jess had: I can do the text
mode
installation of Windows just fine; I reboot, get the bios screen, and the 
window size changes to VGA... and then a black screen. Similarly, if I 
turn off APIC and ACPI, then I do not get a resolution change. I''m
running
debian unstable with the debian xen 3.0.3 package on Core 2 Duo.

I do have a live qemu during this, and qemu-dm*.log shows just one 
suspicious line:
False I/O request ... in-service already: 0, pvalid: 0, port: 0, data: 0, 
count: 0, size: 0

Thanks for any help.

-Eagle

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