[ovirt-users] Live migration - quest VM stall

[Michal Skrivanek]

On 9 Jun 2014, at 21:05, Markus Stockhausen wrote:

> Hello,
> 
> at the moment we are investigating stalls of Windows XP VMs during
> live migration. Our environment consists of:
> 
> - FC20 hypervisor nodes 
> - qemu 1.6.2
> - OVirt 3.4.1
> - Guest: Windows XP SP2
> - VM Disks: Virtio & IDE tested
> - SPICE / VNC: both tested
> - Balloon: With & without tested
> - Cluster compatibility: 3.4 - CPU Nehalem
> 
> After 2-10 live migrations the Windows XP guest is no longer responsive.
> 
> First of all we thougth that it might be related to SPICE because we were
> no longer able to logon to the console. So we installed XP telnet server in 
> the VM but that showed a similar behaviour:
> 
> - The telnet welcome dialogue is always available (network seems ok)
> - Sometime after a live migration  if you enter the password the telnet 
>   gives no response.
> In parallel the SPICE console allows to move open windows. But as soon
> as one clicks on the start the menu the system gives no response.
> 
> Even after updating to qemu 2.0 with virt-preview respositories the
> behaviour stays the same. Looks like the system cannot access

This really seems more either SPICE or QEMU related….
You can isolate the behavior to that single VM? Or single OS type(others work ok)? or it's happening for any other VM randomly?

Thanks,
michal

> 
> Any ideas?
> 
> Markus
> <InterScan_Disclaimer.txt>_______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20140613/eb2af324/attachment-0001.html>