[ovirt-devel] oVirt s390x support - some questions for maintainers

[Nir Soffer]

On Fri, Dec 15, 2017 at 10:30 PM Barak Korren <bkorren at redhat.com> wrote:

> Hi to all project maintainers,
>
> As you may know, over the last few months the oVirt project had got
> some code contributions geared towards enabling the use of s390x
> (Mainframe) machines as hypervisor hosts.
>
> As you may also know, if you've followed the relevant thread, some
> work had been done in collaboration with the Fedora community to
> enable os390x support in oVirt`s CI system.
>
> We're now at the point where we can take the final step and enable
> automated builds of node components for s390x/fc27. Looking at what we
> curently build for ppc64le, I already took the time and submitted
> patches to enable build jobs for vdsm [2], ovirt-host [3], and
> ioprocess [4]. The relevant maintainers should have had these patches
> land in thair inbpx already.
>
> Few questions remain however:
> 1. When would be the best time to merge the patches mentioned above? Given
>    that some of the projects do not support fc27 yet, that the new
> build jobs may
>    raise issues and that the 4.2 release is fast approaching, the
> right timing should
>    be considered carefully.
>

We should prepare a fedora 27 build for all projects before we enable
the jobs in the CI. But if we can disable problematic jobs in the CI easily
(and it seems we can), I think this is not a problem.

You can merge the ioprocess change now if you like.


> 2. Which additional projects need to be build? I can see we build some SDK
>    components for ppc64le as wel, are those dependences of vdsm? Will we
> need
>    to build then for s390x?
>

For vdsm we need:
- ioprocess (nsoffer)
- ovirt-imageio-daemon (derez)
- ovirt-imageio-common (derez)
- pthreading (ybronhei)
- subprocess32 (sbonazzo?)

For engine:
- ovirt-imageio-common
- ovirt-imageio-proxy

This is only (some) the components that we build. We have also tons of
dependencies that are part of Fedora (e.g. sanlock, libvirt). I hope these
projects are built for s390x.

Added some maintainers.

Nir


>
> [1]: http://jenkins.ovirt.org/search/?q=master_build-artifacts-el7-ppc64le
> [2]: https://gerrit.ovirt.org/c/85487
> [3]: https://gerrit.ovirt.org/c/85486
> [4]: https://gerrit.ovirt.org/c/85485
>
> --
> Barak Korren
> RHV DevOps team , RHCE, RHCi
> Red Hat EMEA
> redhat.com | TRIED. TESTED. TRUSTED. | redhat.com/trusted
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