ko1	2013-06-19 07:07:09 +0900 (Wed, 19 Jun 2013)

  New Revision: 41402

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=41402

  Log:
    * gc.c (rgengc_remember): check T_NONE and T_ZOMBIE
      if RGENGC_CHECK_MODE > 0.

  Modified files:
    trunk/ChangeLog
    trunk/gc.c

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 41401)
+++ ChangeLog	(revision 41402)
@@ -1,3 +1,8 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Wed Jun 19 07:06:21 2013  Koichi Sasada  <ko1@a...>
+
+	* gc.c (rgengc_remember): check T_NONE and T_ZOMBIE
+	  if RGENGC_CHECK_MODE > 0.
+
 Wed Jun 19 07:02:19 2013  Koichi Sasada  <ko1@a...>
 
 	* gc.c (RGENGC_CHECK_MODE): add new check mode `3'.
Index: gc.c
===================================================================
--- gc.c	(revision 41401)
+++ gc.c	(revision 41402)
@@ -3632,6 +3632,19 @@ rgengc_remember(rb_objspace_t *objspace, https://github.com/ruby/ruby/blob/trunk/gc.c#L3632
 		  RVALUE_SHADY(obj) ? "shady" : "non-shady",
 		  rgengc_remembersetbits_get(objspace, obj) ? "was already remembered" : "is remembered now");
 
+#if RGENGC_CHECK_MODE > 0
+    {
+	switch (BUILTIN_TYPE(obj)) {
+	  case T_NONE:
+	  case T_ZOMBIE:
+	    rb_bug("rgengc_remember: should not remember %p (%s)\n",
+		   (void *)obj, obj_type_name(obj));
+	  default:
+	    ;
+	}
+    }
+#endif
+
     if (RGENGC_PROFILE) {
 	if (!rgengc_remembered(objspace, obj)) {
 	    if (!RVALUE_SHADY(obj)) {

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