Daniel P. Berrange wrote:
Unfortunately the 'Cannot allocate memory' error message is caused by a bug in the Xen 3.0.3 hypervisor for HVM. It has nothing todo with the amount of free memory in either dom0, or the host, and so there's no easy way to avoid it / workaround it.
Thank you very much for your detailled answer :-) At least, the problem is already fixed in upstream so I'll get rid of the bug with FC7 at the lastest.
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