Re: s390x TCG migration failure

[Thomas Huth]

On 29/03/2023 08.36, Thomas Huth wrote:
> On 29/03/2023 00.21, Nina Schoetterl-Glausch wrote:
> > On Tue, 2023-03-28 at 15:01 +0200, Thomas Huth wrote:
> > > On 24/03/2023 19.41, Nina Schoetterl-Glausch wrote:
> > > > Hi,
> > > >
> > > > We're seeing failures running s390x migration kvm-unit-tests tests with 
> > > > TCG.
> > > > Some initial findings:
> > > > What seems to be happening is that after migration a control block 
> > > > header accessed by the test code is all zeros which causes an unexpected 
> > > > exception.
> > > > I did a bisection which points to c8df4a7aef ("migration: Split 
> > > > save_live_pending() into state_pending_*") as the culprit.
> > > > The migration issue persists after applying the fix e264705012 
> > > > ("migration: I messed state_pending_exact/estimate") on top of c8df4a7aef.
> > >
> > >    Hi Nina,
> > >
> > > could you please open a ticket in the QEMU bug tracker and add the "8.0"
> > > label there, so that it correctly shows up in the list of things that should
> > > be fixed before the 8.0 release?
> >
> > https://gitlab.com/qemu-project/qemu/-/issues/1565 
>
> Thanks!

Ping!

Juan, did you have a chance to look at this issue yet? ... we're getting 
quite close to the 8.0 release, and IMHO this sounds like a critical bug?

 Thomas