I had to restart a paravirt guest and could not start over again. It's a xenstore crash? Compiled against library: libvirt 1.0.3 Using library: libvirt 1.0.3 Usando a API: Xen 1.0.3 Hypervisor em execução: Xen 4.2.0 CentOS 6 - x64 Linux eagle 3.9.8-1.el6xen.x86_64 #1 SMP Sat Jun 29 16:23:39 EST 2013 x86_64 x86_64 x86_64 GNU/Linux I've got this error: ... [07.08.2013 08:21:45 3322] INFO (XendDomainInfo: 169) Recreating domain 13, UUID 0a1ddba3-c1d7-5675-9e5d-1b79d02b5ea2. at / local/domain/13 [07.08.2013 08:21:45 3322] WARNING (XendDomainInfo: 191) / vm/0a1ddba3-c1d7-5675-9e5d-1b79d02b5ea2/uuid / is missing. recreate is confused, trying our best to recover [07.08.2013 08:21:45 3322] ERROR (XendDomain: 447) Unable to recreate domain Traceback (most recent call last): File "/ usr/lib64/python2.6/site-packages/xen/xend/XendDomain.py", line 445, in _refreshTxn new_dom XendDomainInfo.recreate = (dom, False) File "/ usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", line 204, in recreate vmpath = vmpath) File "/ usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", line 455, in __ init__ self._checkName (self.info ['name_label']) File "/ usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", line 3524, in _checkName ("The domain% s"% str (dom.domid)) or "")) VmError: VM name 'Domain-Unnamed' already exists ...