Copyright © 2011, 2012, Oracle and/or its affiliates. All rights reserved. Legal Notices
This section contains information on known limitations and workarounds for the Windows PV drivers.
Windows guests may experience kernel panic when the virtual machine is stopped and started several times. This may also occur if there is intensive I/O. The error in this case is:
(XEN) p2m_pod_demand_populate: Out of populate-on-demand
memory!
Workaround: Set the Maximum Memory and the Memory fields to the same value in the Create/Edit Virtual Machine wizard in Oracle VM Manager.
During the installation or uninstallation of the Windows PV drivers, the Found New Hardware window is displayed when the guest restarts.
Workaround: Click Cancel to ignore the message and close the window.
If you use the Windows PV drivers, the maximum number of virtual CPUs (vCPUs) is eight.
To avoid the stop error "0x000000D1" when doing crash dump and hibernation on Windows Server 2008 R2, Windows Server 2008, and Windows Vista or Windows 7, download and install this Microsoft hotfix from: http://support.microsoft.com/kb/2320550/.
Network performance issues may be experienced with Windows PV drivers Release 2.0.7 on Oracle VM Release 3.0.x. To improve network performance, use Windows PV drivers Release 3.0.1.
Workaround: Disable Large Send Offload support for all network cards available in the Windows virtual machine. Follow these steps to disable Large Send Offload:
Open Device Manager.
Open Network Adapters, right-click the Oracle VM Virtual Ethernet adapter and select Properties.
Select the Advanced tab.
Select Large Send Offload in the Property field, select Disabled in the Value field, and then click OK. The network card will restart automatically and network performance should improve.
Copyright © 2011, 2012, Oracle and/or its affiliates. All rights reserved. Legal Notices