Re: [libvirt-users] Virtualization Management Platforms

2018-02-08 Thread Prasad K
On 09/02/18 9:17 AM, TomK wrote: Looking for something that's relatively simple to operate, install and lightweight but with enough maturity to provide monitoring as well as holistic views of the entire physical space etc. virt-manager will fall in simple and lightweight category. You can conne

[libvirt-users] Virtualization Management Platforms

2018-02-08 Thread TomK
Hey All, Curious about the best, easy to use virtualization management platform for small labs of 30-40 physical servers. Looking for something that's relatively simple to operate, install and lightweight but with enough maturity to provide monitoring as well as holistic views of the entire

Re: [libvirt-users] Ask question

2018-02-08 Thread 李杰
Sorry, I misunderstand you about the external snapshots,please ignore the last letter.Thanks for your answer. -- Original -- From: "Peter Krempa"; Date: 2018年2月8日(星期四) 晚上11:22 To: "李杰"; Cc: "libvirt-users"; Subject: Re: [libvirt-users] Ask question On Thu,

Re: [libvirt-users] Ask question

2018-02-08 Thread 李杰
Thank you,Do you want to say the qemu does not really want to go forward with "external" snanpshots just now?Do you know why the qemu doesn't want to support it?The external snapshot is so important to our users.Thank you! -- Original -- From: "Peter Krempa";

Re: [libvirt-users] libvirt and NAT on a system that already has a DHCP server

2018-02-08 Thread John Ratliff
On 2/8/2018 9:05 AM, Laine Stump wrote: On 02/07/2018 03:07 PM, John Ratliff wrote: On 2/1/2018 9:28 AM, Laine Stump wrote: On 02/01/2018 09:22 AM, Daniel P. Berrangé wrote: On Thu, Feb 01, 2018 at 09:19:11AM -0500, Laine Stump wrote: On 01/30/2018 07:37 PM, j...@bluemarble.net wrote: I'm tr

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Florian Haas
On Thu, Feb 8, 2018 at 1:07 PM, David Hildenbrand wrote: > We should certainly document what I have summaries here properly at a > central palce! Please review the three edits I've submitted to the wiki: https://www.linux-kvm.org/page/Special:Contributions/Fghaas Feel free to ruthlessly edit/rol

Re: [libvirt-users] Ask question

2018-02-08 Thread Peter Krempa
On Thu, Feb 08, 2018 at 22:33:05 +0800, 李杰 wrote: > Dear > > > Recently,I am interested in libvirt,but I found the libvirt > does't support revert and delete the external snapshot which the raw disk > based guest.My libvirt and qemu release are both 3.2.0.So I have a > question,t

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Kashyap Chamarthy
On Thu, Feb 08, 2018 at 12:48:46PM +0100, David Hildenbrand wrote: > 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 >

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread David Hildenbrand
On 08.02.2018 15:59, Daniel P. Berrangé wrote: > On Thu, Feb 08, 2018 at 02:47:26PM +0100, David Hildenbrand wrote: >>> Sure, I do understand that Red Hat (or any other vendor) is taking no >>> support responsibility for this. At this point I'd just like to >>> contribute to a better understanding

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Daniel P . Berrangé
On Thu, Feb 08, 2018 at 02:47:26PM +0100, David Hildenbrand wrote: > > Sure, I do understand that Red Hat (or any other vendor) is taking no > > support responsibility for this. At this point I'd just like to > > contribute to a better understanding of what's expected to definitely > > _not_ work,

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread David Hildenbrand
>>> I've now changed my L2 guest's CPU configuration so that libvirt (in >>> L1) starts the L2 guest with the following settings: >>> >>> >>> Haswell-noTSX >>> Intel >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> >> Maybe one of t

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Kashyap Chamarthy
On Thu, Feb 08, 2018 at 01:07:33PM +0100, David Hildenbrand wrote: [...] > > So to clarify things, could you enumerate the currently known > > limitations when enabling nesting? I'd be happy to summarize those and > > add them to the linux-kvm.org FAQ so others are less likely to hit > > their he

Re: [libvirt-users] Libvirt for virtual devices like virtual printers

2018-02-08 Thread Andrea Bolognani
On Thu, 2018-02-08 at 09:27 +0530, Deepti S wrote: > Hi, > > I have a couple of questions. > > - I am a new libvirt code user. I have just cloned the repo and I am looking > for a suitable debugger/IDE which will help me debug the code. > > - I work in developing and creating virtual printers

[libvirt-users] Ask question

2018-02-08 Thread 李杰
Dear Recently,I am interested in libvirt,but I found the libvirt does't support revert and delete the external snapshot which the raw disk based guest.My libvirt and qemu release are both 3.2.0.So I have a question,the community how to solve it,if have any plans about it.Can you

Re: [libvirt-users] libvirt and NAT on a system that already has a DHCP server

2018-02-08 Thread Laine Stump
On 02/07/2018 03:07 PM, John Ratliff wrote: > On 2/1/2018 9:28 AM, Laine Stump wrote: >> On 02/01/2018 09:22 AM, Daniel P. Berrangé wrote: >>> On Thu, Feb 01, 2018 at 09:19:11AM -0500, Laine Stump wrote: On 01/30/2018 07:37 PM, j...@bluemarble.net wrote: > I'm trying to use virt-manager an

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Florian Haas
On Thu, Feb 8, 2018 at 2:47 PM, David Hildenbrand wrote: >> Again, I'm somewhat struggling to understand this vs. live migration — >> but it's entirely possible that I'm sorely lacking in my knowledge of >> kernel and CPU internals. > > (savevm/loadvm is also called "migration to file") > > When w

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread David Hildenbrand
> Sure, I do understand that Red Hat (or any other vendor) is taking no > support responsibility for this. At this point I'd just like to > contribute to a better understanding of what's expected to definitely > _not_ work, so that people don't bloody their noses on that. :) Indeed. nesting is nic

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Florian Haas
Hi David, thanks for the added input! I'm taking the liberty to snip a few paragraphs to trim this email down a bit. On Thu, Feb 8, 2018 at 1:07 PM, David Hildenbrand wrote: >> Just to give an example, >> https://www.redhat.com/en/blog/inception-how-usable-are-nested-kvm-guests >> from just last

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread David Hildenbrand
>> 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. Hi Florian, (sombeody please correct me if I'm wrong) > > I see your point, exc

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread David Hildenbrand
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

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Daniel P . Berrangé
On Thu, Feb 08, 2018 at 12:34:24PM +0100, Kashyap Chamarthy wrote: > On Thu, Feb 08, 2018 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

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Kashyap Chamarthy
On Thu, Feb 08, 2018 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 > >

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Kashyap Chamarthy
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

Re: [libvirt-users] Nested KVM: L0 guest produces kernel BUG on wakeup from managed save (while a nested VM is running)

2018-02-08 Thread Florian Haas
On Wed, Feb 7, 2018 at 11:26 PM, David Hildenbrand wrote: > On 07.02.2018 16:31, Kashyap Chamarthy wrote: >> [Cc: KVM upstream list.] >> >> On Tue, Feb 06, 2018 at 04:11:46PM +0100, Florian Haas wrote: >>> Hi everyone, >>> >>> I hope this is the correct list to discuss this issue; please feel >>>