Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/concurrentMarkSweep/cmsLockVerifier.hpp @ 8039:5e401ef52ec0
8007772: G1: assert(!hr->isHumongous() || mr.start() == hr->bottom()) failed: the start of HeapRegion and MemRegion should be consistent for humongous regions
Summary: In do_marking_step(), we should always give up current region after scanning the object, if the region is humongous.
Reviewed-by: brutisso, jwilhelm, tamao
author | johnc |
---|---|
date | Mon, 11 Feb 2013 15:24:48 -0800 |
parents | f95d63e2154a |
children |
rev | line source |
---|---|
0 | 1 /* |
1972 | 2 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
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 | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1145
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1145
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1145
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSLOCKVERIFIER_HPP |
26 #define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSLOCKVERIFIER_HPP | |
27 | |
28 #include "runtime/mutex.hpp" | |
29 | |
0 | 30 ///////////// Locking verification specific to CMS ////////////// |
31 // Much like "assert_lock_strong()", except | |
32 // that it relaxes the assertion somewhat for the parallel GC case, where | |
33 // main GC thread or the CMS thread might hold the lock on behalf of | |
34 // the parallel threads. | |
35 class CMSLockVerifier: AllStatic { | |
36 public: | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
0
diff
changeset
|
37 static void assert_locked(const Mutex* lock, const Mutex* p_lock1, const Mutex* p_lock2) |
0 | 38 PRODUCT_RETURN; |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
0
diff
changeset
|
39 static void assert_locked(const Mutex* lock, const Mutex* p_lock) { |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
0
diff
changeset
|
40 assert_locked(lock, p_lock, NULL); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
0
diff
changeset
|
41 } |
0 | 42 static void assert_locked(const Mutex* lock) { |
43 assert_locked(lock, NULL); | |
44 } | |
45 }; | |
1972 | 46 |
47 #endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSLOCKVERIFIER_HPP |