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7011386: race in objArrayKlass::array_klass_impl

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Move _lower_dimension field initialization before _higher_dimension and add storestore barrier.

Reviewed-by: dholmes, iveresov, never
This commit is contained in:
Vladimir Kozlov 2011-01-11 20:26:13 -08:00
parent 6a80d2126c
commit 4912ef0e5d
4 changed files with 11 additions and 9 deletions
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6
hotspot/src/share/vm/runtime/vmStructs.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 2011, 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
@ -219,8 +219,8 @@ static inline uint64_t cast_uint64_t(size_t x)
volatile_nonstatic_field(oopDesc, _metadata._compressed_klass, narrowOop) \
static_field(oopDesc, _bs, BarrierSet*) \
nonstatic_field(arrayKlass, _dimension, int) \
nonstatic_field(arrayKlass, _higher_dimension, klassOop) \
nonstatic_field(arrayKlass, _lower_dimension, klassOop) \
volatile_nonstatic_field(arrayKlass, _higher_dimension, klassOop) \
volatile_nonstatic_field(arrayKlass, _lower_dimension, klassOop) \
nonstatic_field(arrayKlass, _vtable_len, int) \
nonstatic_field(arrayKlass, _alloc_size, juint) \
nonstatic_field(arrayKlass, _component_mirror, oop) \