Re: [Qemu-devel] [Spice-devel] Vioserial of Windows guest OS on Qemu 0.15

[Christophe Fergeau]

On Mon, Mar 19, 2012 at 01:42:21PM +0200, Vadim Rozenfeld wrote:
> On Monday, March 19, 2012 12:12:59 PM Christophe Fergeau wrote:
> > Hey,
> > 
> > On Mon, Mar 19, 2012 at 02:29:41PM +0800, Charles.Tsai-蔡清海-研究發展部 wrote:
> > >   3. When we disable and enable the new VirtIO driver several times
> > >   on either Qemu 1.0 or Qemu 1.0.50, VirtIo driver failed to work
> > >   after enabling the new VirtIO driver.
> > 
> > For what it's worth, Alon Levy also hit this particular bug a few months
> > ago, and I successfully reproduced at that time. I think I reported it to
> > Vadim back in the days, but I'm not 100% sure :)
> > 
> > Christophe
> Thanks Christophe.
> In your case (https://bugzilla.redhat.com/show_bug.cgi?id=750773)
> an UP system hangs on shutdown. 

In my case, the hang was during boot even though it magically went away
sometimes in the last month

> I'm not sure whether Charles is hitting the same problem.

While trying to figure out what was going on with the bug above, I've
definitely hit a "enabling/disabling vioserial in the device manager 3
times causes the VM to freeze" bug.
For what it's worth, lately I've also been experiencing VM freezes when
installing vioserial in winxp or win7 UP VMs

Christophe

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