$OpenBSD: patch-hotspot_src_share_vm_runtime_globals_hpp,v 1.4 2009/01/04 23:25:16 kurt Exp $
--- hotspot/src/share/vm/runtime/globals.hpp.orig	Thu Nov 20 03:41:06 2008
+++ hotspot/src/share/vm/runtime/globals.hpp	Tue Dec 23 07:16:15 2008
@@ -312,7 +312,7 @@ class CommandLineFlags {
   /* UseMembar is theoretically a temp flag used for memory barrier         \
    * removal testing.  It was supposed to be removed before FCS but has     \
    * been re-added (see 6401008) */                                         \
-  product(bool, UseMembar, false,                                           \
+  product(bool, UseMembar, true,                                            \
           "(Unstable) Issues membars on thread state transitions")          \
                                                                             \
   product(bool, PrintCommandLineFlags, false,                               \
