jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/g1/g1Log.hpp@e864cc14ca75

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

     1 /*

     2  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.

     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  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

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    23  */

    25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP

    26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP

    28 #include "memory/allocation.hpp"

    30 class G1Log : public AllStatic {

    31   typedef enum {

    32     LevelNone,

    33     LevelFine,

    34     LevelFiner,

    35     LevelFinest

    36   } LogLevel;

    38   static LogLevel _level;

    40  public:

    41   inline static bool fine() {

    42     return _level >= LevelFine;

    43   }

    45   inline static bool finer() {

    46     return _level >= LevelFiner;

    47   }

    49   inline static bool finest() {

    50     return _level == LevelFinest;

    51   }

    53   static void init();

    54 };

    56 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1LOG_HPP

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/gc_implementation/g1/g1Log.hpp@e864cc14ca75

src/share/vm/gc_implementation/g1/g1Log.hpp