Fedora 23 KDE spin / XEN / virt-manager and vmlinuz-4.3.3-301.fc23.x86_64

[Bill McGonigle]

On 01/18/2016 03:05 PM, Outback Dingo wrote:
> 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.

If you were trying to launch more than 7 DomU's, you might have hit the
problem I did, which seems to be recently fixed:

 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=810472
 https://lkml.org/lkml/2015/12/16/455

Symptom was:
libxl: error: libxl_xshelp.c:134:libxl__xs_get_dompath: failed to get
dompath for 8: Bad file descriptor

I haven't verified that this patch went into
kernel-4.3.5-200.fc22.x86_64 in -testing, but it works for me when 4.3.4
caused all the xl tools to fail on creation of Dom #8.

4.3.3-4 only seem to work for seven Dom's or fewer.

-Bill

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