On Mon, 2013-08-05 at 20:24 +0800, Hu Tao wrote:
On Mon, Aug 05, 2013 at 06:13:39AM -0400, Paolo Bonzini wrote:
for example: in Windows(let's say XP) the Device manager will open a "new device" wizard and the device will appear as an unrecognized device. On a cluster with hundreds of such VMs, If that cluster has a health monitoring service it may show all the VMs in a "not healthy" state.
Is this just a hypothesis, or is there really such broken monitoring software?
I am not aware of a specific software management tool, but Windows WMI API make this so easily to implement and I am sure that a least a part of them implements this.
This patch is a workaround to not show pvpanic in UI to avoid the problem in Windows.
It's not a workaround, it is a proper bugfix.
What versions of Windows did you test it on? Did it hide the New Hardware wizard properly (I think it appears only on XP/2003)?
Windows XP. I didn't see hardware wizard, maybe it is because I tested the same VM before and XP remembered the device and wasn't boring to prompt again.
Tested in a freshly installed Windows XP, the device is hidden but the hardware wizard is shown.
I think I also saw the unknown device. I'll have another look. Marcel