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diff src/share/vm/runtime/vm_version.cpp @ 24178:ab892d05b029

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8161993: G1 crashes if active_processor_count changes during startup Summary: Use the initial active processor count for memory initialization instead of the current active one. Reviewed-by: dholmes, mgerdin
author tschatzl
date Thu, 15 Dec 2016 20:00:01 -0500
parents ddce0b7cee93
children 719853999215
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line diff
--- a/src/share/vm/runtime/vm_version.cpp	Thu Dec 15 19:48:32 2016 -0500
+++ b/src/share/vm/runtime/vm_version.cpp	Thu Dec 15 20:00:01 2016 -0500
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2016, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -296,7 +296,7 @@
     // processor after the first 8.  For example, on a 72 cpu machine
     // and a chosen fraction of 5/8
     // use 8 + (72 - 8) * (5/8) == 48 worker threads.
-    unsigned int ncpus = (unsigned int) os::active_processor_count();
+    unsigned int ncpus = (unsigned int) os::initial_active_processor_count();
     return (ncpus <= switch_pt) ?
            ncpus :
           (switch_pt + ((ncpus - switch_pt) * num) / den);