[SeaBIOS] [PATCH] don't expose pvpanic device in the UI

Marcel Apfelbaum marcel.a at redhat.com
Wed Aug 7 09:28:16 CEST 2013


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?
> 
> Marcel?
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





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