Re: [Xen-devel] xl attempts duplicate DomU creation

[Steven Haigh <netwiz@xxxxxxxxx>]

On 28/04/2013 12:27 AM, Wei Liu wrote:
> On Sat, Apr 27, 2013 at 05:15:33AM +0100, Steven Haigh wrote:
> > Hi all,
> >
> > I'm doing some tweaks and modifications to the initscripts that are
> > included in my Xen packages for EL6. We've just stumbled across a
> > problem that I'm not sure is xen related or not.
> >
> > If you have a running system, and you manually create a DomU such as:
> > # xl create /etc/xen/domu.cfg
> >
> > Then attempt to create that DomU again, you end up with something like:
> > # xl create vm.cfg
> > Parsing config from vm.cfg
> > libxl: error: libxl_create.c:526:libxl__domain_make: cannot change
> > hotplug execution option once set, please shutdown all guests before
> > changing it
> > libxl: error: libxl_create.c:646:initiate_domain_create: cannot make
> > domain: -3
> >
> > You then end up with an entry in 'xl list' that starts with (null) and
> > nothing is easily able to destroy it.
> >
> > My feelings are that xl shouldn't try to create a DomU that already
> > exists - at the very least not leave a partially configured DomU.
> Yes, xl will check if a domain with that name exists.
>
> I saw similar error message when I mixed xend and xl. But I didn't look
> into that because I knew I was doing something terribly wrong. Did you
> use xend and xl at the same time as well?
Ahhh of course - this would actually make sense - as our tests were 
checking the initscript worked with both xend running, and not running 
(ie the initscript auto-detecting if it should use xm or xl).
In testing this, xend was started and stopped multiple times while 
starting and stopping DomUs.
Its probably safe to ignore this...

--
Steven Haigh

Email: netwiz@xxxxxxxxx
Web: https://www.crc.id.au
Phone: (03) 9001 6090 - 0412 935 897
Fax: (03) 8338 0299

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