On Thu, Mar 7, 2019 at 1:42 PM Sarah Newman <srn at prgmr.com> wrote: > On 3/7/19 10:30 AM, Akemi Yagi wrote: > > On Thu, Mar 7, 2019 at 9:42 AM George Dunlap <dunlapg at umich.edu> wrote: > >> > >> Hey all, > >> > >> We've been on 4.9 for some time now, and while it's still supported, I > >> think it's time to start thinking about upgrading, and I'd like input > >> from the community about which version to move up to. > >> > >> 4.19 has been out for almost 5 months now. It will include PVH domU > >> support, and PVH dom0 support in what _is believed_ to be the final > >> form; so when the Virt SIG moves to a version of Xen that supports PVH > >> dom0, the kernel will already be in place with no need to upgrade. > >> > >> The other option would be to move to 4.14: Probably more stable (as > >> it's been out for over a year now), but doesn't have either PVH domU > >> or PVH dom0 support. > >> > >> I'd suggest 4.19. Any other opinions? > >> > >> -George > > > > You may also want to consider each version's EOL: > > > > 4.9 Jan, 2023 > > 4.14 Jan, 2020 > > 4.19 Dec, 2020 > > Regardless of EOL date, I think it's worth trying to upgrade when Xen has > stable PVH dom0 support. > > I am pretty sure historically that there have been difficulties > backporting some of the side channel mitigations as they can be quite > invasive. That > may be another reason to upgrade sooner rather than later. > > --Sarah > > +1 for 4.19. However, this version requires a recent GCC version so it wont build at least for el6 on the CBS. We would have to build them with recent GCC from devtoolset like I do in my pull request (gcc 7.3.1). Karl -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-virt/attachments/20190307/05c871f8/attachment-0006.html>