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

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?


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