Mercurial > hg > graal-compiler

diff src/share/vm/runtime/os.hpp @ 8845:1b90c7607451

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
2178143: JVM crashes if the number of bound CPUs changed during runtime Summary: Supply a new flag -XX:+AssumeMP to workaround the problem. With the flag is turned on, assume VM run on MP platform so is_MP() will return true that sync calls will not skip away. Reviewed-by: dholmes, acorn, dcubed, jmasa Contributed-by: yumin.qi@oracle.com
author minqi
date Wed, 27 Mar 2013 17:03:19 -0700
parents 203f64878aab
children 0c039865ef2b
line wrap: on
line diff
--- a/src/share/vm/runtime/os.hpp	Wed Mar 27 13:26:44 2013 -0700
+++ b/src/share/vm/runtime/os.hpp	Wed Mar 27 17:03:19 2013 -0700
@@ -180,7 +180,7 @@
   // Interface for detecting multiprocessor system
   static inline bool is_MP() {
     assert(_processor_count > 0, "invalid processor count");
-    return _processor_count > 1;
+    return _processor_count > 1 || AssumeMP;
   }
   static julong available_memory();
   static julong physical_memory();