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src/share/vm/gc_implementation/g1/heapRegionSeq.inline.hpp@e864cc14ca75 (annotated)
src/share/vm/gc_implementation/g1/heapRegionSeq.inline.hpp
Tue, 19 Mar 2013 00:57:39 -0700
- author
- johnc
- date
- Tue, 19 Mar 2013 00:57:39 -0700
- changeset 4788
- e864cc14ca75
- parent 3713
- 720b6a76dd9d
- child 5773
- a19bea467577
- permissions
- -rw-r--r--
8009940: G1: assert(_finger == _heap_end) failed, concurrentMark.cpp:809
Summary: Skip reference processing if the global marking stack overflows during remark. Refactor and rename set_phase(); move code that sets the concurrency level into its own routine. Do not call set_phase() from within parallel reference processing; use the concurrency level routine instead. The marking state should only set reset by CMTask[0] during the concurrent phase of the marking cycle; if an overflow occurs at any stage during the remark, the marking state will be reset after reference processing.
Reviewed-by: brutisso, jmasa
| ysr@777 | 1 | /* |
| tonyp@3713 | 2 | * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
| ysr@777 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| ysr@777 | 4 | * |
| ysr@777 | 5 | * This code is free software; you can redistribute it and/or modify it |
| ysr@777 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| ysr@777 | 7 | * published by the Free Software Foundation. |
| ysr@777 | 8 | * |
| ysr@777 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| ysr@777 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| ysr@777 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| ysr@777 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| ysr@777 | 13 | * accompanied this code). |
| ysr@777 | 14 | * |
| ysr@777 | 15 | * You should have received a copy of the GNU General Public License version |
| ysr@777 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| ysr@777 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| ysr@777 | 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. |
| ysr@777 | 22 | * |
| ysr@777 | 23 | */ |
| ysr@777 | 24 | |
| stefank@2314 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |
| stefank@2314 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |
| stefank@2314 | 27 | |
| tonyp@2963 | 28 | #include "gc_implementation/g1/heapRegion.hpp" |
| stefank@2314 | 29 | #include "gc_implementation/g1/heapRegionSeq.hpp" |
| stefank@2314 | 30 | |
| tonyp@3713 | 31 | inline uintx HeapRegionSeq::addr_to_index_biased(HeapWord* addr) const { |
| tonyp@2963 | 32 | assert(_heap_bottom <= addr && addr < _heap_end, |
| tonyp@2963 | 33 | err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT, |
| tonyp@2963 | 34 | addr, _heap_bottom, _heap_end)); |
| tonyp@3713 | 35 | uintx index = (uintx) addr >> _region_shift; |
| tonyp@2963 | 36 | return index; |
| tonyp@2963 | 37 | } |
| tonyp@2963 | 38 | |
| tonyp@2963 | 39 | inline HeapRegion* HeapRegionSeq::addr_to_region_unsafe(HeapWord* addr) const { |
| tonyp@2963 | 40 | assert(_heap_bottom <= addr && addr < _heap_end, |
| tonyp@2963 | 41 | err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT, |
| tonyp@2963 | 42 | addr, _heap_bottom, _heap_end)); |
| tonyp@3713 | 43 | uintx index_biased = addr_to_index_biased(addr); |
| tonyp@2963 | 44 | HeapRegion* hr = _regions_biased[index_biased]; |
| tonyp@2963 | 45 | assert(hr != NULL, "invariant"); |
| tonyp@2963 | 46 | return hr; |
| tonyp@2963 | 47 | } |
| tonyp@2963 | 48 | |
| tonyp@2963 | 49 | inline HeapRegion* HeapRegionSeq::addr_to_region(HeapWord* addr) const { |
| tonyp@2963 | 50 | if (addr != NULL && addr < _heap_end) { |
| tonyp@2963 | 51 | assert(addr >= _heap_bottom, |
| tonyp@2963 | 52 | err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT, addr, _heap_bottom)); |
| tonyp@2963 | 53 | return addr_to_region_unsafe(addr); |
| ysr@777 | 54 | } |
| ysr@777 | 55 | return NULL; |
| ysr@777 | 56 | } |
| stefank@2314 | 57 | |
| tonyp@3713 | 58 | inline HeapRegion* HeapRegionSeq::at(uint index) const { |
| tonyp@2963 | 59 | assert(index < length(), "pre-condition"); |
| tonyp@2963 | 60 | HeapRegion* hr = _regions[index]; |
| tonyp@2963 | 61 | assert(hr != NULL, "sanity"); |
| tonyp@2963 | 62 | assert(hr->hrs_index() == index, "sanity"); |
| tonyp@2963 | 63 | return hr; |
| tonyp@2963 | 64 | } |
| tonyp@2963 | 65 | |
| stefank@2314 | 66 | #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |
