[Pkg-libvirt-maintainers] Bug#783901: Bug#783901: libvirt-daemon: libvirtd does not recognize Xen guests

[Guido Günther]

Hi,
On Thu, Apr 30, 2015 at 09:48:12PM -0700, Gerald Turner wrote:
> Package: libvirt-daemon
> Version: 1.2.9-9
> Severity: normal
> 
> Dear Maintainer,
> 
> I have a server setup with Xen and 12 domU's strictly using Debian,
> since squeeze, wheezy, and now jessie.  I had been minimally using
> libvirt with munin-node to poll statistics.  After upgrading to jessie,
> and converting Xen configuration to xl.cfg format, libvirt no longer
> enumerates any of the domU's, and does not report any errors other than
> information being empty.

See:

    https://libvirt.org/drvxen.html

you might still have xend running, but
> 
> For example:
> 
>   # virsh -c 'xen:///' list --all
>    Id    Name                           State
>   ----------------------------------------------------
> 
> Attached is "LIBVIRT_DEBUG=1 libvirtd" output.  At line 10640 is a
> conneection from the aforementioned 'virsh' command.  Shortly thereafter
> there are logs like:
> 
>   2015-05-01 04:15:52.835+0000: 23215: debug : do_open:1145 : trying driver 5 (xenlight) ...
>   2015-05-01 04:15:52.835+0000: 23211: debug : virEventPollRunOnce:642 : EVENT_POLL_RUN: nhandles=10 timeout=4999
>   2015-05-01 04:15:52.835+0000: 23215: debug : virObjectRef:296 : OBJECT_REF: obj=0x7f4ec3c232c0
>   2015-05-01 04:15:52.835+0000: 23215: debug : virAccessManagerCheckConnect:218 : manager=0x7f4ec3c232c0(name=stack) driver=xenlight perm=0
>   2015-05-01 04:15:52.835+0000: 23215: debug : virAccessManagerCheckConnect:218 : manager=0x7f4ec3c26940(name=none) driver=xenlight perm=0
>   2015-05-01 04:15:52.835+0000: 23215: debug : virObjectUnref:259 : OBJECT_UNREF: obj=0x7f4ec3c232c0
>   2015-05-01 04:15:52.835+0000: 23215: debug : do_open:1152 : driver 5 xenlight returned SUCCESS

...this looks like xenlight indeed but you need to create xenlight
configs as described at the above URL.
Cheers,
 -- Guido