Mercurial > hg > graal-jvmci-8

comparison src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp @ 4876:be649fefcdc2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7134655: Crash in reference processing when doing single-threaded remarking Summary: Temporarily disabled multi-threaded reference discovery when entering a single-threaded remark phase. Reviewed-by: brutisso, tonyp, jmasa, jcoomes
author stefank
date Fri, 27 Jan 2012 14:14:50 +0100
parents 441e946dc1af
children d903bf750e9f
comparison
equal deleted inserted replaced
4839:b4ebad3520bb 4876:be649fefcdc2
1 /* 1 /*
2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
5592 // ST marking. 5592 // ST marking.
5593 ReferenceProcessorMTDiscoveryMutator mt(ref_processor(), true); 5593 ReferenceProcessorMTDiscoveryMutator mt(ref_processor(), true);
5594 GenCollectedHeap::StrongRootsScope srs(gch); 5594 GenCollectedHeap::StrongRootsScope srs(gch);
5595 workers->run_task(&tsk); 5595 workers->run_task(&tsk);
5596 } else { 5596 } else {
5597 ReferenceProcessorMTDiscoveryMutator mt(ref_processor(), false);
5597 GenCollectedHeap::StrongRootsScope srs(gch); 5598 GenCollectedHeap::StrongRootsScope srs(gch);
5598 tsk.work(0); 5599 tsk.work(0);
5599 } 5600 }
5600 gch->set_par_threads(0); // 0 ==> non-parallel. 5601 gch->set_par_threads(0); // 0 ==> non-parallel.
5601 // restore, single-threaded for now, any preserved marks 5602 // restore, single-threaded for now, any preserved marks
5606 // Non-parallel version of remark 5607 // Non-parallel version of remark
5607 void CMSCollector::do_remark_non_parallel() { 5608 void CMSCollector::do_remark_non_parallel() {
5608 ResourceMark rm; 5609 ResourceMark rm;
5609 HandleMark hm; 5610 HandleMark hm;
5610 GenCollectedHeap* gch = GenCollectedHeap::heap(); 5611 GenCollectedHeap* gch = GenCollectedHeap::heap();
5612 ReferenceProcessorMTDiscoveryMutator mt(ref_processor(), false);
5613
5611 MarkRefsIntoAndScanClosure 5614 MarkRefsIntoAndScanClosure
5612 mrias_cl(_span, ref_processor(), &_markBitMap, &_modUnionTable, 5615 mrias_cl(_span, ref_processor(), &_markBitMap, &_modUnionTable,
5613 &_markStack, &_revisitStack, this, 5616 &_markStack, &_revisitStack, this,
5614 false /* should_yield */, false /* not precleaning */); 5617 false /* should_yield */, false /* not precleaning */);
5615 MarkFromDirtyCardsClosure 5618 MarkFromDirtyCardsClosure