Mercurial > hg > graal-jvmci-8
view src/share/vm/gc_implementation/concurrentMarkSweep/cmsLockVerifier.hpp @ 355:0edda524b58c
6722565: G1: assert !r->is_on_unclean_list() fires
Summary: Under certain circumstances, two cleanup threads can claim and process the same region.
Reviewed-by: apetrusenko, ysr
author | tonyp |
---|---|
date | Wed, 06 Aug 2008 11:57:31 -0400 |
parents | a61af66fc99e |
children | e018e6884bd8 |
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/* * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ ///////////// Locking verification specific to CMS ////////////// // Much like "assert_lock_strong()", except // that it relaxes the assertion somewhat for the parallel GC case, where // main GC thread or the CMS thread might hold the lock on behalf of // the parallel threads. class CMSLockVerifier: AllStatic { public: static void assert_locked(const Mutex* lock, const Mutex* p_lock) PRODUCT_RETURN; static void assert_locked(const Mutex* lock) { assert_locked(lock, NULL); } };