Xen users - Apr 2011 - BSOD after installation of GPLPV drivers

Hello,

I use Debian Squeeze with XEN 4.0. I use LVM for my virtual machines. This seems
to be the problem in combination of Windows 2008 R2 and GPLPV drivers.
I can install Windows 2008 R2 without problems. But after I installed the GPLPV
drivers and rebooted Windows, the VM stops with a BSOD error 07b (inaccessible
boot device). This is how I configured the disk:

disk = [ ''phy:/dev/vg0/deathstar-disk,hda,w'',
        ''file:/data/w2k8r2.iso,hdc:cdrom,r'' ]

When I use a file as the disk, I have no problems to install the GPLPV drivers
(disk = [ ''file:/data/w2k8.disk,hda,w'',
''file:/data/w2k8r2.iso,hdc:cdrom,r'' ]). So it seems, that it
is impossible (at least for me), to use LVM and GPLPV drivers together.
I even compiled the latest version of GPLPV, but always the same error.
I also had a problem with windows 2003 server and GPLPV, but can''t
remember if it was error 07b. So maybe this problem is not only related to
Windows 2008 R2.

With kind regards.
Christian Motschke

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

> Hello,
> 
> I use Debian Squeeze with XEN 4.0. I use LVM for my virtual machines.
This
> seems to be the problem in combination of Windows 2008 R2 and GPLPV
drivers.
> I can install Windows 2008 R2 without problems. But after I installed
the
> GPLPV drivers and rebooted Windows, the VM stops with a BSOD error 07b
> (inaccessible boot device). This is how I configured the disk:
> 
> disk = [ ''phy:/dev/vg0/deathstar-disk,hda,w'',
>         ''file:/data/w2k8r2.iso,hdc:cdrom,r'' ]
> 
> When I use a file as the disk, I have no problems to install the GPLPV
drivers
> (disk = [ ''file:/data/w2k8.disk,hda,w'',
''file:/data/w2k8r2.iso,hdc:cdrom,r''
> ]). So it seems, that it is impossible (at least for me), to use LVM
and GPLPV
> drivers together.
> I even compiled the latest version of GPLPV, but always the same
error.
> I also had a problem with windows 2003 server and GPLPV, but can''t
remember if
> it was error 07b. So maybe this problem is not only related to Windows
2008
> R2.
> 
Can you run the debug version of gplpv and send me the contents of
/var/log/xen/qemu-dm-<domu name>.log after the failed boot?

James

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

I solved it. The problem was, that the underlying block device had 4kb sectors.
It was exported via FC from an Open-e server. I deleted it on the Open-e server
and created a new one with 512 byte sectors. So I assume that qemu emulates a
512 byte block device and the pv driver pass-through the sector size of the
underlying device. If the sector sizes differ, windows can not handle that.

Christian

Am 12.04.2011 um 13:06 schrieb James Harper:
>> Hello,
>> 
>> I use Debian Squeeze with XEN 4.0. I use LVM for my virtual machines.
> This
>> seems to be the problem in combination of Windows 2008 R2 and GPLPV
> drivers.
>> I can install Windows 2008 R2 without problems. But after I installed
> the
>> GPLPV drivers and rebooted Windows, the VM stops with a BSOD error 07b
>> (inaccessible boot device). This is how I configured the disk:
>> 
>> disk = [ ''phy:/dev/vg0/deathstar-disk,hda,w'',
>>        ''file:/data/w2k8r2.iso,hdc:cdrom,r'' ]
>> 
>> When I use a file as the disk, I have no problems to install the GPLPV
> drivers
>> (disk = [ ''file:/data/w2k8.disk,hda,w'',
> ''file:/data/w2k8r2.iso,hdc:cdrom,r''
>> ]). So it seems, that it is impossible (at least for me), to use LVM
> and GPLPV
>> drivers together.
>> I even compiled the latest version of GPLPV, but always the same
> error.
>> I also had a problem with windows 2003 server and GPLPV, but
can''t
> remember if
>> it was error 07b. So maybe this problem is not only related to Windows
> 2008
>> R2.
>> 
> 
> Can you run the debug version of gplpv and send me the contents of
> /var/log/xen/qemu-dm-<domu name>.log after the failed boot?
> 
> James
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users

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