naruse	2015-06-13 20:17:04 +0900 (Sat, 13 Jun 2015)

  New Revision: 50869

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=50869

  Log:
    mark thread name string

  Modified files:
    trunk/vm.c
Index: vm.c
===================================================================
--- vm.c	(revision 50868)
+++ vm.c	(revision 50869)
@@ -2126,6 +2126,8 @@ rb_thread_mark(void *ptr) https://github.com/ruby/ruby/blob/trunk/vm.c#L2126
 				 sizeof(th->machine.regs) / sizeof(VALUE));
 	}
 
+	RUBY_MARK_UNLESS_NULL(th->name);
+
 	rb_vm_trace_mark_event_hooks(&th->event_hooks);
     }
 

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