Xen users - Apr 2006 - Major BUG in xm restore command

Xen release 3.0.0

With ''xm rename'' and ''xm restore'' commands,
it''s possible to start several
domains with the same properties (same config file).

Example:
 - create a config file named ''A''
 - xm create A
 - xm rename A B
 - xm save B B.save
 - xm create A
 - xm restore B.save

At this time, there is two domains A and B with the same properties
(same hard disk, same IP address, etc..).

The correct behavior would be to reject the "xm restore B.save".



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On Thu, Apr 06, 2006 at 12:20:32PM +0200, Philippe Berthault wrote:
> Xen release 3.0.0
> 
> With ''xm rename'' and ''xm restore''
commands, it''s possible to start several
> domains with the same properties (same config file).
> 
> Example:
> - create a config file named ''A''
> - xm create A
> - xm rename A B
> - xm save B B.save
> - xm create A
> - xm restore B.save
> 
> At this time, there is two domains A and B with the same properties
> (same hard disk, same IP address, etc..).
> 
> The correct behavior would be to reject the "xm restore B.save".
The hotplug scripts should be protecting you from writing to the same disk by
two domains at the same time.  What does your config file look like -- how is
that not happening?

Ewan.

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