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[win-pv-devel] Xen 4.4.4 + Win PV Drivers 8.2.1 + Windows Server 2016 - Only Safe Mode working

  • To: <win-pv-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: "Jens Hauser" <hauser@xxxxxxxxxxxxx>
  • Date: Sun, 18 Nov 2018 15:46:41 +0100
  • Delivery-date: Sun, 18 Nov 2018 14:47:48 +0000
  • List-id: Developer list for the Windows PV Drivers subproject <win-pv-devel.lists.xenproject.org>
  • Thread-index: AdR/SHNxEW0cmg+RReO+P47CkmAe0g==

Hello List,


I had a Windows Server 2016 as a DomU on a Debian 8.11 now up and running for about 6 month without any problems. The system contains an Exchange Server – everything worked smooth.


On last Friday the system seems to have rebooted due to Windows updates automatically installed. After that I found the server freezed in a screen with the no longer animated icons.

Another 2012 R2 server was running fine without any problems.


So I tried to find out whats wrong and narrowed it down tot he network driver as far as I can tell. I found entries in ntbtlog.txt which said that „AFD.SYS“ was not loaded at boot.

The first tries I was unable to boot into safe mode. After a few hickups the system booted into Safe Mode saying that an upgrade didn’t work and that it was to be rolled back. After that I was able to get into Safe Mode but first only the one without network drivers.


If I disable Realtek RTL8139 C network card I can boot into normal operation. With this network card enabled the boot hangs as before.


After installation of Xen Project Win PV drivers 8.2.1 all the necessary devices where found but a reboot leads tot he Windows screen with the animated icons floating endlessly.


It all seems to be related to network stuff. There is this Realtek Card which needs to be disabled and it’s not vanishing if I install the PV drivers – even if the Xen PV Network Device #0 is showing up the Realtek Card is still there.


Is there any chance to fix this issue? Or do I need to install the server as a new system?


Kind regards,



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