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src/share/vm/gc_implementation/concurrentMarkSweep/vmStructs_cms.hpp@4947ee68d19c (annotated)

src/share/vm/gc_implementation/concurrentMarkSweep/vmStructs_cms.hpp

Thu, 06 Jan 2011 23:50:02 -0800

author

ysr

date

Thu, 06 Jan 2011 23:50:02 -0800

changeset 2452

4947ee68d19c

parent 2314

f95d63e2154a

child 3730

9f059abe8cf2

permissions

-rw-r--r--

7008136: CMS: assert((HeapWord*)nextChunk <= _limit) failed: sweep invariant
Summary: The recorded _sweep_limit may not necessarily remain a block boundary as the old generation expands during a concurrent cycle. Terminal actions inside the sweep closure need to be aware of this as they cross over the limit.
Reviewed-by: johnc, minqi

duke@435	1	/*
stefank@2314	2	* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_VMSTRUCTS_CMS_HPP
stefank@2314	26	#define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_VMSTRUCTS_CMS_HPP
stefank@2314	27
duke@435	28	#define VM_STRUCTS_CMS(nonstatic_field, \
coleenp@622	29	volatile_nonstatic_field, \
duke@435	30	static_field) \
duke@435	31	nonstatic_field(CompactibleFreeListSpace, _collector, CMSCollector*) \
duke@435	32	nonstatic_field(CompactibleFreeListSpace, _bt, BlockOffsetArrayNonContigSpace) \
duke@435	33	\
duke@435	34	nonstatic_field(CMSPermGen, _gen, ConcurrentMarkSweepGeneration*) \
duke@435	35	nonstatic_field(CMSBitMap, _bmStartWord, HeapWord*) \
duke@435	36	nonstatic_field(CMSBitMap, _bmWordSize, size_t) \
duke@435	37	nonstatic_field(CMSBitMap, _shifter, const int) \
duke@435	38	nonstatic_field(CMSBitMap, _bm, BitMap) \
duke@435	39	nonstatic_field(CMSBitMap, _virtual_space, VirtualSpace) \
duke@435	40	nonstatic_field(CMSCollector, _markBitMap, CMSBitMap) \
duke@435	41	nonstatic_field(ConcurrentMarkSweepGeneration, _cmsSpace, CompactibleFreeListSpace*) \
duke@435	42	static_field(ConcurrentMarkSweepThread, _collector, CMSCollector*) \
coleenp@622	43	volatile_nonstatic_field(FreeChunk, _size, size_t) \
duke@435	44	nonstatic_field(FreeChunk, _next, FreeChunk*) \
duke@435	45	nonstatic_field(FreeChunk, _prev, FreeChunk*) \
dcubed@587	46	nonstatic_field(LinearAllocBlock, _word_size, size_t) \
dcubed@587	47	nonstatic_field(FreeList, _size, size_t) \
dcubed@587	48	nonstatic_field(FreeList, _count, ssize_t) \
dcubed@587	49	nonstatic_field(BinaryTreeDictionary, _totalSize, size_t) \
dcubed@587	50	nonstatic_field(CompactibleFreeListSpace, _dictionary, FreeBlockDictionary*) \
dcubed@587	51	nonstatic_field(CompactibleFreeListSpace, _indexedFreeList[0], FreeList) \
dcubed@587	52	nonstatic_field(CompactibleFreeListSpace, _smallLinearAllocBlock, LinearAllocBlock)
dcubed@587	53
duke@435	54
duke@435	55	#define VM_TYPES_CMS(declare_type, \
duke@435	56	declare_toplevel_type) \
duke@435	57	\
duke@435	58	declare_type(ConcurrentMarkSweepGeneration,CardGeneration) \
duke@435	59	declare_type(CompactibleFreeListSpace, CompactibleSpace) \
duke@435	60	declare_type(CMSPermGenGen, ConcurrentMarkSweepGeneration) \
duke@435	61	declare_type(CMSPermGen, PermGen) \
duke@435	62	declare_type(ConcurrentMarkSweepThread, NamedThread) \
duke@435	63	declare_type(SurrogateLockerThread, JavaThread) \
duke@435	64	declare_toplevel_type(CMSCollector) \
duke@435	65	declare_toplevel_type(CMSBitMap) \
duke@435	66	declare_toplevel_type(FreeChunk) \
duke@435	67	declare_toplevel_type(ConcurrentMarkSweepThread*) \
duke@435	68	declare_toplevel_type(ConcurrentMarkSweepGeneration*) \
duke@435	69	declare_toplevel_type(SurrogateLockerThread*) \
duke@435	70	declare_toplevel_type(CompactibleFreeListSpace*) \
duke@435	71	declare_toplevel_type(CMSCollector*) \
dcubed@587	72	declare_toplevel_type(FreeChunk*) \
dcubed@587	73	declare_toplevel_type(BinaryTreeDictionary*) \
dcubed@587	74	declare_toplevel_type(FreeBlockDictionary*) \
dcubed@587	75	declare_toplevel_type(FreeList*) \
dcubed@587	76	declare_toplevel_type(FreeList) \
dcubed@587	77	declare_toplevel_type(LinearAllocBlock) \
dcubed@587	78	declare_toplevel_type(FreeBlockDictionary) \
dcubed@587	79	declare_type(BinaryTreeDictionary, FreeBlockDictionary)
duke@435	80
duke@435	81	#define VM_INT_CONSTANTS_CMS(declare_constant) \
duke@435	82	declare_constant(Generation::ConcurrentMarkSweep) \
duke@435	83	declare_constant(PermGen::ConcurrentMarkSweep)
stefank@2314	84
stefank@2314	85	#endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_VMSTRUCTS_CMS_HPP