Index: xen-4.1.2-testing/tools/python/xen/xend/XendDomainInfo.py
===================================================================
--- xen-4.1.2-testing.orig/tools/python/xen/xend/XendDomainInfo.py
+++ xen-4.1.2-testing/tools/python/xen/xend/XendDomainInfo.py
@@ -2778,7 +2778,10 @@ class XendDomainInfo:
                 from xen.xend import XendDomain
                 doms = XendDomain.instance().list('all')
                 for dom in filter (lambda d: d.domid != self.domid, doms):
-                    cpuinfo = dom.getVCPUInfo()
+                    try:
+                        cpuinfo = dom.getVCPUInfo()
+                    except:
+                        continue
                     for vcpu in sxp.children(cpuinfo, 'vcpu'):
                         if sxp.child_value(vcpu, 'online') == 0: continue
                         cpumap = list(sxp.child_value(vcpu,'cpumap'))