Signed-off-by: juergen.gross@xxxxxxxxxxxxxx

diff -r a167ea374f26 xen/common/schedule.c
--- a/xen/common/schedule.c	Thu Apr 29 19:38:52 2010 +0100
+++ b/xen/common/schedule.c	Fri Apr 30 07:51:07 2010 +0200
@@ -216,7 +216,8 @@
 
     TRACE_2D(TRC_SCHED_DOM_ADD, v->domain->domain_id, v->vcpu_id);
 
-    if ( unlikely(per_cpu(schedule_data, v->processor).sched_priv == NULL) )
+    if ( unlikely(per_cpu(schedule_data, v->processor).sched_priv == NULL) &&
+        (DOM2OP(d)->alloc_pdata != NULL) )
     {
         per_cpu(schedule_data, v->processor).sched_priv =
             SCHED_OP(DOM2OP(d), alloc_pdata, processor);