* gc.c (force_chain_object, rb_objspace_call_finalizer): delete

finalizer entry after corresponding finalizer is executed.
  This caused SEGV when test/cgi is executed with GC.stress = true.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28073 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Sun May 30 00:02:39 2010  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* gc.c (force_chain_object, rb_objspace_call_finalizer): delete
+	  finalizer entry after corresponding finalizer is executed.
+	  This caused SEGV when test/cgi is executed with GC.stress = true.
+
 Sat May 29 23:30:33 2010  Yusuke Endoh  <mame@tsg.ne.jp>
 
 	* string.c (str_replace_shared): change embedded state atomically.

gc.c

@@ -2840,7 +2840,7 @@ force_chain_object(st_data_t key, st_data_t val, st_data_t arg)
     curr->table = val;
     curr->next = *prev;
     *prev = curr;
-    return ST_DELETE;
+    return ST_CONTINUE;
 }
 
 void
@@ -2873,6 +2873,7 @@ rb_objspace_call_finalizer(rb_objspace_t *objspace)
 	    while (list) {
 		struct force_finalize_list *curr = list;
 		run_finalizer(objspace, curr->obj, rb_obj_id(curr->obj), curr->table);
+		st_delete(finalizer_table, (st_data_t*)&curr->obj, 0);
 		list = curr->next;
 		xfree(curr);
 	    }