Changeset 297

Timestamp:

Jun 16, 2011, 2:27:03 PM (14 years ago)

Author:

dmik

Message:

hotspot: Applied a temporary workaround to avoid frequent crashes on SMP machines by forcing the -X:+UseMembar option to all JVM invocations. See #96 and #118 for more info.

File:

• trunk/openjdk/hotspot/src/os/windows/vm/os_windows.cpp (modified) (1 diff)

trunk/openjdk/hotspot/src/os/windows/vm/os_windows.cpp

@@ -3425 +3425 @@
   }
   main_thread_id = (int) GetCurrentThreadId();
+
+#ifdef __WIN32OS2__
+  // The mprotect-based memory barrier technique seems be very unstable under
+  // the SMP kernel on OS/2 for some reason. This needs more investigation and
+  // hence we force the old mode using the fence instructions for the time
+  // being. See #118 for more details.
+  UseMembar = true;
+#endif
 }