ko1	2015-06-24 16:56:52 +0900 (Wed, 24 Jun 2015)

  New Revision: 51012

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=51012

  Log:
    * gc.c (gc_mark_children): add additional debug code for #11244.

  Modified files:
    trunk/ChangeLog
    trunk/gc.c
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 51011)
+++ ChangeLog	(revision 51012)
@@ -1,3 +1,7 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Wed Jun 24 16:54:11 2015  Koichi Sasada  <ko1@a...>
+
+	* gc.c (gc_mark_children): add additional debug code for #11244.
+
 Wed Jun 24 16:05:42 2015  Eric Wong  <e@8...>
 
 	* string.c (rb_str_justify): use RB_GC_GUARD
Index: gc.c
===================================================================
--- gc.c	(revision 51011)
+++ gc.c	(revision 51012)
@@ -4304,6 +4304,10 @@ gc_mark_children(rb_objspace_t *objspace https://github.com/ruby/ruby/blob/trunk/gc.c#L4304
 	if (!RCLASS_EXT(obj)) break;
 	mark_tbl(objspace, RCLASS_IV_TBL(obj));
 	mark_const_tbl(objspace, RCLASS_CONST_TBL(obj));
+
+	/* TODO: remove it. check code for Bug #11244 */
+	if (RB_TYPE_P(RCLASS_SUPER(obj), T_NONE)) rb_bug("gc_mark_children: super is T_NONE (%s)", obj_info(obj));
+
 	gc_mark(objspace, RCLASS_SUPER((VALUE)obj));
 	break;
 

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