----- Original Message -----
From: "Sandro Bonazzola" <sbonazzo(a)redhat.com>
To: Users(a)ovirt.org, devel(a)ovirt.org
Sent: Tuesday, November 25, 2014 7:07:14 AM
Subject: [ovirt-users] [QE][ACTION REQUIRED] oVirt 3.5.1 RC status - postponed
[...]
The following bugs have been keyworded as Regression and not marked
as
blockers:
1165336 virt ASSIGNED FC20 qemu needs kvmclock bugfixes
Hi,
I'd like to elaborate a bit more here for the sake of the openness.
TL;DR version
- no actual regression in oVirt, meaning 'we applied a patch and we broke
something'.
- "fix" is underway - to propose the relevant patches to Fedora QEMU package
Long(ish) version
1 some time ago we adhered to QEMU/KVM clock settings recommendations (see
https://bugzilla.redhat.com/show_bug.cgi?id=1053846)
2 these recommendations are *still* valid as today - I just checked with upstream
developers
while investigating bz1165336
3 these recommendations may have surprising effects like disabling HPET clock
4 on some old(ish) upstream QEMUs, disabling HPET may hurt migrations - hence bz1165336
5 only *very* recent QEMUs (2.2.0rc0!) have the fixes, which are about improving
kvm clock, while HPET clock is still not recommended (see #2 above)
6 if the qemu-kvm-rhev is used (available in the oVirt repo), the experience is
significantly better
However, the reporter *has* a very valid point, which motivated me to write me this mail:
a. F20 is a supported platform
b. I *guess* Fedora is the platform of choice to try out QEMU and to initially play with
it
c. out-of-the box experience with oVirt and Fedora is cumbersome, many steps and tunings
are needed.
This may annoy users - without a valid reason!
d. hence there is an unneededly high first step to try out oVirt, and this is hurting the
project
Now, I'd like to raise this question
* it is true that Fedora is the platform of choice to try out and evaluate oVirt?
* if so, is the experience on Fedora streamlined enough or could it made simple, hence we
could
have a better vector to spread oVirt?
* what we could do, as oVirt project, to improve the above?
Feedback welcome
--
Francesco Romani
RedHat Engineering Virtualization R & D
Phone: 8261328
IRC: fromani