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7112413: JVM Crash, possibly GC-related

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Disable UseAdaptiveSizePolicy with the CMS and ParNew

Reviewed-by: johnc, brutisso
This commit is contained in:
John Coomes 2012-01-25 21:14:11 -08:00
parent 802519ea53
commit 3eb017ee50
1 changed files with 15 additions and 11 deletions
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26
hotspot/src/share/vm/runtime/arguments.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2012, 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
@ -1040,6 +1040,16 @@ void Arguments::set_tiered_flags() {
}
#ifndef KERNEL
static void disable_adaptive_size_policy(const char* collector_name) {
if (UseAdaptiveSizePolicy) {
if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) {
warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.",
collector_name);
}
FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false);
}
}
// If the user has chosen ParallelGCThreads > 0, we set UseParNewGC
// if it's not explictly set or unset. If the user has chosen
// UseParNewGC and not explicitly set ParallelGCThreads we
@ -1049,11 +1059,8 @@ void Arguments::set_parnew_gc_flags() {
"control point invariant");
assert(UseParNewGC, "Error");
// Turn off AdaptiveSizePolicy by default for parnew until it is
// complete.
if (FLAG_IS_DEFAULT(UseAdaptiveSizePolicy)) {
FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false);
}
// Turn off AdaptiveSizePolicy for parnew until it is complete.
disable_adaptive_size_policy("UseParNewGC");
if (ParallelGCThreads == 0) {
FLAG_SET_DEFAULT(ParallelGCThreads,
@ -1110,11 +1117,8 @@ void Arguments::set_cms_and_parnew_gc_flags() {
FLAG_SET_ERGO(bool, UseParNewGC, true);
}
// Turn off AdaptiveSizePolicy by default for cms until it is
// complete.
if (FLAG_IS_DEFAULT(UseAdaptiveSizePolicy)) {
FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false);
}
// Turn off AdaptiveSizePolicy for CMS until it is complete.
disable_adaptive_size_policy("UseConcMarkSweepGC");
// In either case, adjust ParallelGCThreads and/or UseParNewGC
// as needed.