[sgen] Increase parallelization of minors

[mono.git] / mono / sgen / sgen-copy-object.h

diff --git a/mono/sgen/sgen-copy-object.h b/mono/sgen/sgen-copy-object.h
index 4c3eae0f09e3db3c7736872a54640a0565f722f0..925af17275dd67a1d2606d0c302b1ba3d7a4c38b 100644 (file)
--- a/mono/sgen/sgen-copy-object.h
+++ b/mono/sgen/sgen-copy-object.h
@@ -1,5 +1,6 @@
-/*
- * sgen-copy-object.h: This is where objects are copied.
+/**
+ * \file
+ * This is where objects are copied.
  *
  * Copyright 2001-2003 Ximian, Inc
  * Copyright 2003-2010 Novell, Inc.
@@ -123,6 +124,12 @@ copy_object_no_checks_par (GCObject *obj, SgenGrayQueue *queue)
                                GRAY_OBJECT_ENQUEUE_PARALLEL (queue, (GCObject *)destination, sgen_vtable_get_descriptor (vt));
                        }
                } else {
+                       /*
+                        * Unlikely case. Clear the allocated object so it doesn't confuse nursery
+                        * card table scanning, since it can contain old invalid refs.
+                        * FIXME make sure it is not a problem if another threads scans it while we clear
+                        */
+                       mono_gc_bzero_aligned (destination, objsize);
                        destination = final_destination;
                }
        }