Bug 1231511
| Summary: | [1.2.1] Unable to create an Ubuntu VM | ||||||||
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| Product: | [Community] Virtualization Tools | Reporter: | jean-christophe manciot <actionmystique> | ||||||
| Component: | virt-manager | Assignee: | Cole Robinson <crobinso> | ||||||
| Status: | CLOSED CANTFIX | QA Contact: | |||||||
| Severity: | high | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | unspecified | CC: | actionmystique, berrange, crobinso, gscrivan, rbalakri | ||||||
| Target Milestone: | --- | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | x86_64 | ||||||||
| OS: | Linux | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2015-09-01 16:42:04 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
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Description
jean-christophe manciot
2015-06-14 09:10:18 UTC
Created attachment 1038493 [details]
Log
I've also tried with an Ubuntu desktop 14.04 iso, and it failed with exactly the same symptom. However, I was able to create the following VMs: - Microsoft Windows 10 - Cisco CSR 1000V The issue is still here with: - virt-manager 1.2.1 from git sources - libvirt 1.2.17 - qemu 2.4.0 rc1 I've just found the root cause of this issue:
- I was able to create an Ubuntu 15.04 VM with default options.
- However, if I set the processor option to match the local processor ("copy the host CPU configuration"), the installation ends up in an infinite loop.
- My CPU is an Intel i7 4700-MQ, which is from the Haswell family. However, If I choose one of the 2 available Haswell options, both end up with the installation infinite loop.
- If I set it to Westmere, I'm able to install the VM.
This is kind of a big deal, because what I'm really trying to do is to install Cisco's VIRL -based on Lubuntu- environment in a KVM VM.
VIRL has terrible performances inside a VMware Workstation/Player VM.
Since VIRL is greedy on CPU (& storage but I have an SSD), I thought I could be better off with KVM.
BTW, are there any plans about supporting LXD anytime soon?
Please provide virt-manager --debug when reproducing the issue, from app startup to app shutdown, and describe exactly where you are seeing the infinite loop.
Also please specify what virt-manager version you are using (I assume it's git master)
> BTW, are there any plans about supporting LXD anytime soon?
Libvirt would need to support it first, and I've heard nothing on that front, I don't really know enough about LXD to know if it even makes sense.
The debug information during Ubuntu 15.04 VM creation & installation is available here: https://drive.google.com/file/d/0B5fXyIn0-GDFdWxKTVhJNW92RU0/view?usp=sharing A screenshot taken during the infinite loop is available there: https://drive.google.com/file/d/0B5fXyIn0-GDFMGo0Q0JXb3BmQWM/view?usp=sharing No more debug information has been generated during the last installation step that led to that infinite loop. Thanks for the info. So the infinite loop is _inside_ the VM, like ubuntu's installer? Then this probably isn't virt-manager or libvirt's fault, since we don't deal with anything that low level. Since it's CPU model dependent, this is probably tickling some KVM or guest kernel issue, so I guess the issue is somewhere in: guest kernel, ubuntu installer, host kernel, or qemu, likely in that order. So I think you'll need to file a bug with your distro to track it down more |