src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.cpp

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*** 52,73 **** const size_t words = bits / BitsPerWord; const size_t raw_bytes = words * sizeof(idx_t); const size_t page_sz = os::page_size_for_region(raw_bytes, raw_bytes, 10); const size_t granularity = os::vm_allocation_granularity(); ! const size_t bytes = align_size_up(raw_bytes, MAX2(page_sz, granularity)); const size_t rs_align = page_sz == (size_t) os::vm_page_size() ? 0 : MAX2(page_sz, granularity); ! ReservedSpace rs(bytes, rs_align, rs_align > 0); os::trace_page_sizes("par bitmap", raw_bytes, raw_bytes, page_sz, rs.base(), rs.size()); MemTracker::record_virtual_memory_type((address)rs.base(), mtGC); _virtual_space = new PSVirtualSpace(rs, page_sz); ! if (_virtual_space != NULL && _virtual_space->expand_by(bytes)) { _region_start = covered_region.start(); _region_size = covered_region.word_size(); idx_t* map = (idx_t*)_virtual_space->reserved_low_addr(); _beg_bits.set_map(map); _beg_bits.set_size(bits / 2); --- 52,73 ---- const size_t words = bits / BitsPerWord; const size_t raw_bytes = words * sizeof(idx_t); const size_t page_sz = os::page_size_for_region(raw_bytes, raw_bytes, 10); const size_t granularity = os::vm_allocation_granularity(); ! _reserved_byte_size = align_size_up(raw_bytes, MAX2(page_sz, granularity)); const size_t rs_align = page_sz == (size_t) os::vm_page_size() ? 0 : MAX2(page_sz, granularity); ! ReservedSpace rs(_reserved_byte_size, rs_align, rs_align > 0); os::trace_page_sizes("par bitmap", raw_bytes, raw_bytes, page_sz, rs.base(), rs.size()); MemTracker::record_virtual_memory_type((address)rs.base(), mtGC); _virtual_space = new PSVirtualSpace(rs, page_sz); ! if (_virtual_space != NULL && _virtual_space->expand_by(_reserved_byte_size)) { _region_start = covered_region.start(); _region_size = covered_region.word_size(); idx_t* map = (idx_t*)_virtual_space->reserved_low_addr(); _beg_bits.set_map(map); _beg_bits.set_size(bits / 2);