Tue, 19 Mar 2013 00:57:39 -0700
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
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_VMSTRUCTS_G1_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_VMSTRUCTS_G1_HPP
28 #include "gc_implementation/g1/heapRegion.hpp"
29 #include "gc_implementation/g1/heapRegionSeq.inline.hpp"
30 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
32 #define VM_STRUCTS_G1(nonstatic_field, static_field) \
33 \
34 static_field(HeapRegion, GrainBytes, size_t) \
35 \
36 nonstatic_field(HeapRegionSeq, _regions, HeapRegion**) \
37 nonstatic_field(HeapRegionSeq, _length, uint) \
38 \
39 nonstatic_field(G1CollectedHeap, _hrs, HeapRegionSeq) \
40 nonstatic_field(G1CollectedHeap, _g1_committed, MemRegion) \
41 nonstatic_field(G1CollectedHeap, _summary_bytes_used, size_t) \
42 nonstatic_field(G1CollectedHeap, _g1mm, G1MonitoringSupport*) \
43 nonstatic_field(G1CollectedHeap, _old_set, HeapRegionSetBase) \
44 nonstatic_field(G1CollectedHeap, _humongous_set, HeapRegionSetBase) \
45 \
46 nonstatic_field(G1MonitoringSupport, _eden_committed, size_t) \
47 nonstatic_field(G1MonitoringSupport, _eden_used, size_t) \
48 nonstatic_field(G1MonitoringSupport, _survivor_committed, size_t) \
49 nonstatic_field(G1MonitoringSupport, _survivor_used, size_t) \
50 nonstatic_field(G1MonitoringSupport, _old_committed, size_t) \
51 nonstatic_field(G1MonitoringSupport, _old_used, size_t) \
52 \
53 nonstatic_field(HeapRegionSetBase, _length, uint) \
54 nonstatic_field(HeapRegionSetBase, _region_num, uint) \
55 nonstatic_field(HeapRegionSetBase, _total_used_bytes, size_t) \
58 #define VM_TYPES_G1(declare_type, declare_toplevel_type) \
59 \
60 declare_type(G1CollectedHeap, SharedHeap) \
61 \
62 declare_type(HeapRegion, ContiguousSpace) \
63 declare_toplevel_type(HeapRegionSeq) \
64 declare_toplevel_type(HeapRegionSetBase) \
65 declare_toplevel_type(G1MonitoringSupport) \
66 \
67 declare_toplevel_type(G1CollectedHeap*) \
68 declare_toplevel_type(HeapRegion*) \
69 declare_toplevel_type(G1MonitoringSupport*) \
72 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_VMSTRUCTS_G1_HPP