Displaying 6 results from an estimated 6 matches for "198621".
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2018 Feb 08
1
Re: Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)
...18 at 11:46:24AM +0100, Kashyap Chamarthy wrote:
> On Wed, Feb 07, 2018 at 11:26:14PM +0100, David Hildenbrand wrote:
> > On 07.02.2018 16:31, Kashyap Chamarthy wrote:
>
> [...]
>
> > Sounds like a similar problem as in
> > https://bugzilla.kernel.org/show_bug.cgi?id=198621
> >
> > In short: there is no (live) migration support for nested VMX yet. So as
> > soon as your guest is using VMX itself ("nVMX"), this is not expected to
> > work.
>
> Actually, live migration with nVMX _does_ work insofar as you have
> _identical_ C...
2018 Feb 07
5
Re: Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)
...'m using libvirt 'host-passthrough' for CPU (meaning: '-cpu host' in
> QEMU parlance) for both L1 and L2.
>
> My L0 CPU is: Intel(R) Xeon(R) CPU E5-2609 v3 @ 1.90GHz.
>
> Thoughts?
Sounds like a similar problem as in
https://bugzilla.kernel.org/show_bug.cgi?id=198621
In short: there is no (live) migration support for nested VMX yet. So as
soon as your guest is using VMX itself ("nVMX"), this is not expected to
work.
--
Thanks,
David / dhildenb
2018 Feb 08
1
Re: Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)
On 08.02.2018 11:46, Kashyap Chamarthy wrote:
> On Wed, Feb 07, 2018 at 11:26:14PM +0100, David Hildenbrand wrote:
>> On 07.02.2018 16:31, Kashyap Chamarthy wrote:
>
> [...]
>
>> Sounds like a similar problem as in
>> https://bugzilla.kernel.org/show_bug.cgi?id=198621
>>
>> In short: there is no (live) migration support for nested VMX yet. So as
>> soon as your guest is using VMX itself ("nVMX"), this is not expected to
>> work.
>
> Actually, live migration with nVMX _does_ work insofar as you have
> _identical_ CPUs o...
2018 Feb 08
0
Re: Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)
On Wed, Feb 07, 2018 at 11:26:14PM +0100, David Hildenbrand wrote:
> On 07.02.2018 16:31, Kashyap Chamarthy wrote:
[...]
> Sounds like a similar problem as in
> https://bugzilla.kernel.org/show_bug.cgi?id=198621
>
> In short: there is no (live) migration support for nested VMX yet. So as
> soon as your guest is using VMX itself ("nVMX"), this is not expected to
> work.
Actually, live migration with nVMX _does_ work insofar as you have
_identical_ CPUs on both source and destination...
2018 Feb 08
0
Re: Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)
...assthrough' for CPU (meaning: '-cpu host' in
>> QEMU parlance) for both L1 and L2.
>>
>> My L0 CPU is: Intel(R) Xeon(R) CPU E5-2609 v3 @ 1.90GHz.
>>
>> Thoughts?
>
> Sounds like a similar problem as in
> https://bugzilla.kernel.org/show_bug.cgi?id=198621
>
> In short: there is no (live) migration support for nested VMX yet. So as
> soon as your guest is using VMX itself ("nVMX"), this is not expected to
> work.
Hi David, thanks for getting back to us on this.
I see your point, except the issue Kashyap and I are describing do...
2018 Feb 06
2
Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)
Hi everyone,
I hope this is the correct list to discuss this issue; please feel
free to redirect me otherwise.
I have a nested virtualization setup that looks as follows:
- Host: Ubuntu 16.04, kernel 4.4.0 (an OpenStack Nova compute node)
- L0 guest: openSUSE Leap 42.3, kernel 4.4.104-39-default
- Nested guest: SLES 12, kernel 3.12.28-4-default
The nested guest is configured with