* vm.c (rb_thread_mark): mark stat_insn_usage only when ptr is not

null.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@16325 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Thu May  8 13:19:18 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* vm.c (rb_thread_mark): mark stat_insn_usage only when ptr is not
+	  null.
+
 Thu May  8 10:44:04 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* array.c (sort_reentered): reentered check may be called from

vm.c

@@ -1637,6 +1637,7 @@ rb_thread_mark(void *ptr)
 	RUBY_MARK_UNLESS_NULL(th->top_wrapper);
 	RUBY_MARK_UNLESS_NULL(th->fiber);
 	RUBY_MARK_UNLESS_NULL(th->root_fiber);
+	RUBY_MARK_UNLESS_NULL(th->stat_insn_usage);
 
 	rb_mark_tbl(th->local_storage);
 
@@ -1650,7 +1651,6 @@ rb_thread_mark(void *ptr)
 	mark_event_hooks(th->event_hooks);
     }
 
-    RUBY_MARK_UNLESS_NULL(th->stat_insn_usage);
     RUBY_MARK_LEAVE("thread");
 }