Re: [Qemu-devel] KVM call agenda for June 21

[Avi Kivity]

On 06/21/2011 04:50 PM, Anthony Liguori wrote:
> On 06/21/2011 06:28 AM, Avi Kivity wrote:
> > On 06/20/2011 10:42 AM, Juan Quintela wrote:
> > > Please send in any agenda items you are interested in covering.
> >
> >
> > https://bugzilla.redhat.com/show_bug.cgi?id=689672 - Guests do not start
> > after upgrading qemu to 0.13
> >
> > Seems like our backward compatibility plan isn't working. How do we
> > address it? How do we test it?
>
> f13 is ancient, no?

Yes, a year old.

Furthermore, Justin tells me it carries a lot downstream patches.

> I'm not sure what this particular issue is, but is this doing -M pc-0.12?

It has its own machine type.  So this report may not indicate any 
problem with upstream.

Still, I feel we have a potential problem here.  We identify 
guest-visible attributes just by review; we're sure to miss something 
here and there.  Unlike ordinary bugs, compatibility problems only show 
up later and are much harder to fix.

Second, we don't do any tests in this area that I'm aware of.  Lucas, 
what would it take (thanks, you're most kind) to test multiple qemus in 
a single run?

We can have a script that runs lspci -vvvvvvvvvvvvvvvvvvv, x86info, and 
other interesting stuff and compare the results, and also system tests 
that boot a guest on multiple qemus (with the same -M and different -M) 
and see if things work.

We can probably continue on email, I don't see a real need for a call 
for this topic.

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