Xen users - Feb 2011 - Strange Problem with Windows GPLPV Drivers

I have a strange problem with these drivers.

 

I have a host that has 31 VM''s running on it, all windows. They are
running
the same template, which has the latest GPLPV drivers installed. The problem
occurred today when I went to add the 32nd VM, again from the same template.
Now when the VM boots up I get a BSOD.

 

I tried a different template to confirm that it was not template corruption,
again BSOD on boot.

 

Booting into safe mode works fine, so that led me to believe it could be
driver related.

 

I then performed a fresh install of windows from ISO, and that worked fine,
UNTIL I installed the GPLPV drivers .. half way through the install, I got a
BSOD with xenpci.sys being the offending file.

 

It would seem I have hit some sort of internal limit maybe .. the host has
plenty of RAM, the dom0 domain has plenty of RAM, and disk space is not an
issue.

 

Any ideas?



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I have a strange problem with these drivers.

 

I have a host that has 31 VM''s running on it, all windows. They are
running
the same template, which has the latest GPLPV drivers installed. The problem
occurred today when I went to add the 32nd VM (pretty freaky number!), again
from the same template. Now when the VM boots up I get a BSOD.

 

I tried a different template to confirm that it was not template corruption,
again BSOD on boot.

 

Booting into safe mode works fine, so that led me to believe it could be
driver related.

 

I then performed a fresh install of windows from ISO, and that worked fine,
UNTIL I installed the GPLPV drivers .. half way through the install, I got a
BSOD with xenpci.sys being the offending file.

 

It would seem I have hit some sort of internal limit maybe .. the host has
plenty of RAM, the dom0 domain has plenty of RAM, and disk space is not an
issue.

 

Any ideas?



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On Sat, 26 Feb 2011, Peter Ranson wrote:
> I have a host that has 31 VM''s running on it, all windows. They
are running
> the same template, which has the latest GPLPV drivers installed. The
problem
> occurred today when I went to add the 32nd VM (pretty freaky number!),
again
> from the same template. Now when the VM boots up I get a BSOD.
Interestingly, I have the same problem, except that I can only get 30 XP 
VM''s to run, and the 31st fails. I''m using gplpv_XP_0.11.0.213
and Xen 3.1
on CentOS 5.5 x86_64; with a much earlier GPLPV version (I forget the 
exact version, maybe 0.9.12) I did not encounter such a limit. No idea 
why.

-steve

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I''m glad I''m not the only one out there with this problem.

I have just tried with 0.9.12.pre13 and still having problems on that
release. A little more info on my setup, I am running Windows 2003 R2 32 bit

-----Original Message-----
From: Steve Thompson [mailto:smt@vgersoft.com] 
Sent: Saturday, February 26, 2011 6:42 PM
To: Peter Ranson
Cc: xen-users@lists.xensource.com
Subject: Re: [Xen-users] Strange Problem with Windows GPLPV Drivers

On Sat, 26 Feb 2011, Peter Ranson wrote:
> I have a host that has 31 VM''s running on it, all windows. They
are
> running the same template, which has the latest GPLPV drivers 
> installed. The problem occurred today when I went to add the 32nd VM 
> (pretty freaky number!), again from the same template. Now when the VM
boots up I get a BSOD.

Interestingly, I have the same problem, except that I can only get 30 XP
VM''s to run, and the 31st fails. I''m using gplpv_XP_0.11.0.213
and Xen 3.1
on CentOS 5.5 x86_64; with a much earlier GPLPV version (I forget the exact
version, maybe 0.9.12) I did not encounter such a limit. No idea why.

-steve


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

> 
> I have a strange problem with these drivers.
> 
> I have a host that has 31 VM''s running on it, all windows. They
are
running
> the same template, which has the latest GPLPV drivers installed. The
problem
> occurred today when I went to add the 32nd VM (pretty freaky number!),
again
> from the same template. Now when the VM boots up I get a BSOD.
> 
> I tried a different template to confirm that it was not template
corruption,
> again BSOD on boot.
> 
> Booting into safe mode works fine, so that led me to believe it could
be
> driver related.
> 
> I then performed a fresh install of windows from ISO, and that worked
fine,
> UNTIL I installed the GPLPV drivers .. half way through the install, I
got a
> BSOD with xenpci.sys being the offending file.
> 
> It would seem I have hit some sort of internal limit maybe .. the host
has
> plenty of RAM, the dom0 domain has plenty of RAM, and disk space is
not an
> issue.
> 
> Any ideas?
What is the BSoD code?

You mention 0.9 in another email... was that just something you tried
for testing?

If you use the debug version of the drivers it should log lots of stuff
to /var/log/xen/qemu-dm-<domu name>.log. If you can give me the BSoD
code (a screenshot would be fine) and a copy of that log I can have a
look at it.

I don''t have any hardware capable of running 32 VM''s so I
can''t test it
unfortunately.

James

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