Indeed, it is a false positive. ovirt-srv22 was the last in queue for updates and I accidentally updated it to Fedora 26 which has a known qemu bug [1] causing this issue. This should be fixed now as I've rebuilt it to CentOS 7 that is not affected and can run OST properly. My bad, sorry for the inconvenience. 

[1] https://ovirt-jira.atlassian.net/browse/OST-74

On Fri, Sep 8, 2017 at 2:13 PM, Barak Korren <bkorren@redhat.com> wrote:
This looks like a false positive. One of the upgrade suits failed with
the following error from Lago:

libvirtError: internal error: Process exited prior to exec: libvirt:
QEMU Driver error : Unable to stat
/dev/shm/ost/deployment-upgrade-from-prevrelease-suite-master/default/images/lago-upgrade-from-prevrelease-suite-master-engine_root.qcow2:
No such file or directory

This ran on 'ovirt-srv22.phx.ovirt.org'. Evegheny, any idea what is going on?

This is the 2nd time in a row I resend this VDSM patch to testing...

I know we have some regression in engine, but we need to make sure the
system is stable enough to pass other things properly.

On 8 September 2017 at 15:00, oVirt Jenkins <jenkins@ovirt.org> wrote:
> A system test invoked by the "ovirt-master" change queue including change
> 74005,28 (vdsm) failed. However, this change seems not to be the root cause for
> this failure. Change 80371,10 (vdsm) that this change depends on or is based
> on, was detected as the cause of the testing failures.
>
> This change had been removed from the testing queue. Artifacts built from this
> change will not be released until either change 80371,10 (vdsm) is fixed and
> this change is updated to refer to or rebased on the fixed version, or this
> change is modified to no longer depend on it.
>
> For further details about the change see:
> https://gerrit.ovirt.org/#/c/74005/28
>
> For further details about the change that seems to be the root cause behind the
> testing failures see:
> https://gerrit.ovirt.org/#/c/80371/10
>
> For failed test results see:
> http://jenkins.ovirt.org/job/ovirt-master_change-queue-tester/2418/
> _______________________________________________
> Infra mailing list
> Infra@ovirt.org
> http://lists.ovirt.org/mailman/listinfo/infra



--
Barak Korren
RHV DevOps team , RHCE, RHCi
Red Hat EMEA
redhat.com | TRIED. TESTED. TRUSTED. | redhat.com/trusted



--
Regards,
Evgheni Dereveanchin