On 01/19/2016 10:42 AM, Outback Dingo wrote:
> 
> 
> On Tue, Jan 19, 2016 at 4:32 PM, Cole Robinson <crobi...@redhat.com
> <mailto:crobi...@redhat.com>> wrote:
> 
>     On 01/18/2016 03:05 PM, Outback Dingo wrote:
>     > So my environment
>     >
>     > Fedora 23 KDE spin
>     > XEN-4.5.2 and kernel 4.2.8 booted via EFI where everything works fine 
> using
>     > virt-manager to manage vms under XEN, all is good.
>     >
>     > a recent update installed kernel-4.3.3 so i reset the xen efi 
> configuration,
>     > booted got into the desktop no problems. The issue arises when trying to
>     > launch vms from virt-manager, it always throws a  virt-manager viewer
>     > connection to hypervisor host got refused or disconnected.
>     >
>     > however, if i go back to using kernel 4.2.8 it all works fine. So there 
> in
>     > lies the question, whats changed that is now preventing virt-manager 
> from
>     > aunching vms properly.
>     >
>     > Sorry for the cross post, just trying to find the answer. thanks in 
> advance
>     >
>     >
> 
>     I suggest filing a bug against xen. See if there's any different output in
>     dmesg, attach /var/log/libvirt/libxl/$your-vm-name.log, attach 
> virt-manager
>     --debug output when reproducing
> 
> 
> Id be more inclined to think this is a kernel build issue and not a XEN issue,
> however... filing a bug with debug data attached could be helpful.

Xen has many of its own specific bits in the kernel. Filing against the xen
component is the best way to get xen guys to take a look, they will move it to
the kernel if necessary.

- Cole

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