[Bug 1792438] Re: [Ubuntu 18.10] Need to enable TM in pseries-cosmic
@bssrikanth - the default state is part of the qemu machine type and therefore version dependent. Later qemu versions might switch the value, but only for newer machine types. So if you start with -M "pseries-bionic" it will stay the same definition hopefully forever. And libvirt will set the default machine type queried from qemu when created, that machine type stays for the lifecycle of the machine. A machine for the migration receive at the target is spawned the same way as the source - so these values should always match. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1792438 Title: [Ubuntu 18.10] Need to enable TM in pseries-cosmic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1792438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1792438] Re: [Ubuntu 18.10] Need to enable TM in pseries-cosmic
** Changed in: ubuntu-power-systems Status: New => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1792438 Title: [Ubuntu 18.10] Need to enable TM in pseries-cosmic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1792438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1792438] Re: [Ubuntu 18.10] Need to enable TM in pseries-cosmic
Hi, I'd not want to diverge from the upstream default in this case. It is not the effort to carry the patch to enable it in the pseries-cosmic type, instead the reasons are: - Being upstream off means it is less tested and therefore less stable ppc64el is already not the most run arch, and a default change unless strictly needed would make us a too much of a special snowflake which can be nice but all too often also comes with - TBH it still seems too buggy - Leonardo/Breno will remember all the "switch it off/on" changes we had about 4 months ago being scared it would be default on and broken in 2.11 on P9 - bug 1792501 of tonight shows there are more issues to come (nice timing to show my point) - whenever needed it can be enabled by a user/admin via configuration of the guests I'd recommend to keep it off by default to avoid showing users into a default mode that (unfortunately) likely might show issues identified later on. If you want to switch it on badly you can: a) request us to do so on your risk. But we can't flip the default after feature freeze in a week. And if issues are found I do not want to implement/maintain migration workarounds for something that was chosen willingly while expecting issues. So it might end up with really bad cases at the customers which won't be good (keeping default off and having those that want to use it enabling it is much less critical as you know). b) make it stable enough and switch it on upstream and we will pick it up in the qemu version that will do so which at least means Upstream, Ubuntu and all others would be affected the same. ** Changed in: qemu (Ubuntu) Status: New => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1792438 Title: [Ubuntu 18.10] Need to enable TM in pseries-cosmic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1792438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1792438] Re: [Ubuntu 18.10] Need to enable TM in pseries-cosmic
** Also affects: ubuntu-power-systems Importance: Undecided Status: New ** Changed in: ubuntu-power-systems Importance: Undecided => Critical ** Changed in: ubuntu-power-systems Assignee: (unassigned) => Canonical Server Team (canonical-server) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1792438 Title: [Ubuntu 18.10] Need to enable TM in pseries-cosmic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1792438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
