[opensuse-kernel] status of kernel-pv? drop-in replacement for kernel-xen?
What is the current status of kernel-pv? Is it intended to be a drop-in replacement for Xen DomU guests? My initial tests at 3rd party providers' Guests (e.g. Linode), fail to boot. That's with no changes to the guest. Is it ready? Are there changes required in the guest? Are there specific host/guest version requirements for Xen, etc? -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org
On 03.08.15 at 18:50, <robert.devanna@nospammail.net> wrote: What is the current status of kernel-pv?
Is it intended to be a drop-in replacement for Xen DomU guests?
Generally yes, but in the end it's there for you and us to figure out what other adjustments are necessary elsewhere.
My initial tests at 3rd party providers' Guests (e.g. Linode), fail to boot.
"fail to boot" is way too vague to conclude anything.
That's with no changes to the guest.
Is it ready? Are there changes required in the guest?
/etc/inittab (or whatever systemd may use as replacement) may need adjustment. Without knowing of specific observed issues I can't think of others, but then again I think I used it as a Dom0 kernel only so far.
Are there specific host/guest version requirements for Xen, etc?
Not unless you consider using very old (3.x) Xen. Jan -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org
On Mon, Aug 03, 2015 at 09:50:02AM -0700, robert.devanna@nospammail.net wrote:
What is the current status of kernel-pv?
We should expect proposals to eventually fold kernel-pv into kernel default soon, if not done already.
Is it intended to be a drop-in replacement for Xen DomU guests?
Its intended to replace the xen flavor very long term, xen flavor should be used only as last resort, we'll be phasing that out very slowly through time.
My initial tests at 3rd party providers' Guests (e.g. Linode), fail to boot. That's with no changes to the guest.
Linode seems to be a cloud hosting provider, what hypervisor they use is then not up to you, as such its not clear that what you are aiming here for might be a Xen DomU guest, or are you sure they use Xen for their hypervisor ?
Is it ready?
The goal with pv flavor was to use pvops for Xen based solutions. The major requirements to move to pvops based Linux Xen solution should now be addressed. There may be kinks, and we want to learn about issues folks have now with this.
Are there changes required in the guest?
Linux is a moving target and upstream has changed significantly recenlty to help with pvops, for the best experience we expect you to need to use a later kernel version, the more recent the better, and this will only improve over time.
Are there specific host/guest version requirements for Xen, etc?
I personally work with the latest and greatest toolstack / Xen hypervisor, that is I work upstream. I am not sure what the latest requirements are but I suspect openseuse should have those requirments up to par, Juergen, would you happen to know? Luis -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org
On 10/02/2015 11:32 PM, Luis R. Rodriguez wrote:
On Mon, Aug 03, 2015 at 09:50:02AM -0700, robert.devanna@nospammail.net wrote:
What is the current status of kernel-pv?
We should expect proposals to eventually fold kernel-pv into kernel default soon, if not done already.
It already happened: http://lists.opensuse.org/opensuse-kernel/2015-10/msg00004.html
Are there specific host/guest version requirements for Xen, etc?
I personally work with the latest and greatest toolstack / Xen hypervisor, that is I work upstream. I am not sure what the latest requirements are but I suspect openseuse should have those requirments up to par, Juergen, would you happen to know?
The pvops kernel should work even with a rather ancient Xen (e.g. 3.4). The features you are able to use in a domU are depending on the host kernel/Xen version, of course. Juergen -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org
participants (4)
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Jan Beulich
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Juergen Gross
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Luis R. Rodriguez
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robert.devanna@nospammail.net