$OpenBSD: patch-hotspot_src_share_vm_runtime_globals_hpp,v 1.5 2009/05/23 03:03:25 kurt Exp $
--- hotspot/src/share/vm/runtime/globals.hpp.orig	Fri May  8 03:30:37 2009
+++ hotspot/src/share/vm/runtime/globals.hpp	Sat May  9 10:15:54 2009
@@ -316,7 +316,7 @@ 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,                               \
