Merge pull request #1222 from hjelmn/vader_fix

btl/vader: do not attempt to munmap opal/shmem pointer

opal/mca/btl/vader/btl_vader_component.c

@@ -297,10 +297,13 @@ static int mca_btl_vader_component_close(void)
     OBJ_DESTRUCT(&mca_btl_vader_component.pending_endpoints);
     OBJ_DESTRUCT(&mca_btl_vader_component.pending_fragments);
 
-    if (NULL != mca_btl_vader_component.my_segment) {
+    if (MCA_BTL_VADER_XPMEM == mca_btl_vader_component.single_copy_mechanism &&
+        NULL != mca_btl_vader_component.my_segment) {
         munmap (mca_btl_vader_component.my_segment, mca_btl_vader_component.segment_size);
     }
 
+    mca_btl_vader_component.my_segment = NULL;
+
 #if OPAL_BTL_VADER_HAVE_KNEM
     mca_btl_vader_knem_fini ();
 #endif