Mercurial > hg > truffle
annotate src/share/vm/services/memPtr.cpp @ 6741:33143ee07800
7181995: NMT ON: NMT assertion failure assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record
Summary: Fixed virtual memory records merge and promotion logic, should be based on sequence number vs. base address order
Reviewed-by: coleenp, acorn
| author | zgu |
|---|---|
| date | Tue, 11 Sep 2012 20:53:17 -0400 |
| parents | e5bf1c79ed5b |
| children | 716c64bda5ba |
| rev | line source |
|---|---|
| 6197 | 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 | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #include "precompiled.hpp" | |
| 26 #include "services/memPtr.hpp" | |
| 27 #include "services/memTracker.hpp" | |
| 28 | |
| 29 volatile jint SequenceGenerator::_seq_number = 1; | |
|
6607
e5bf1c79ed5b
7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
zgu
parents:
6197
diff
changeset
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30 NOT_PRODUCT(jint SequenceGenerator::_max_seq_number = 1;) |
| 6197 | 31 DEBUG_ONLY(volatile unsigned long SequenceGenerator::_generation = 0;) |
| 32 | |
| 33 jint SequenceGenerator::next() { | |
| 34 jint seq = Atomic::add(1, &_seq_number); | |
| 35 if (seq < 0) { | |
| 36 MemTracker::shutdown(MemTracker::NMT_sequence_overflow); | |
| 37 } | |
| 38 assert(seq > 0, "counter overflow"); | |
|
6607
e5bf1c79ed5b
7191124: Optimized build is broken due to inconsistent use of DEBUG_ONLY and NOT_PRODUCT macros in NMT
zgu
parents:
6197
diff
changeset
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39 NOT_PRODUCT(_max_seq_number = (seq > _max_seq_number) ? seq : _max_seq_number;) |
| 6197 | 40 return seq; |
| 41 } | |
| 42 | |
| 43 | |
| 44 | |
| 45 bool VMMemRegion::contains(const VMMemRegion* mr) const { | |
|
6741
33143ee07800
7181995: NMT ON: NMT assertion failure assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record
zgu
parents:
6607
diff
changeset
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46 assert(base() != 0, "Sanity check"); |
| 6197 | 47 assert(size() != 0 || committed_size() != 0, |
|
6741
33143ee07800
7181995: NMT ON: NMT assertion failure assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record
zgu
parents:
6607
diff
changeset
|
48 "Sanity check"); |
| 6197 | 49 address base_addr = base(); |
| 50 address end_addr = base_addr + | |
| 51 (is_reserve_record()? reserved_size(): committed_size()); | |
| 52 if (mr->is_reserve_record()) { | |
| 53 if (mr->base() == base_addr && mr->size() == size()) { | |
| 54 // the same range | |
| 55 return true; | |
| 56 } | |
| 57 return false; | |
| 58 } else if (mr->is_commit_record() || mr->is_uncommit_record()) { | |
| 59 assert(mr->base() != 0 && mr->committed_size() > 0, | |
| 60 "bad record"); | |
| 61 return (mr->base() >= base_addr && | |
| 62 (mr->base() + mr->committed_size()) <= end_addr); | |
| 63 } else if (mr->is_type_tagging_record()) { | |
|
6741
33143ee07800
7181995: NMT ON: NMT assertion failure assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record
zgu
parents:
6607
diff
changeset
|
64 assert(mr->base() != NULL, "Sanity check"); |
|
33143ee07800
7181995: NMT ON: NMT assertion failure assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record
zgu
parents:
6607
diff
changeset
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65 return (mr->base() >= base_addr && mr->base() < end_addr); |
| 6197 | 66 } else if (mr->is_release_record()) { |
| 67 assert(mr->base() != 0 && mr->size() > 0, | |
| 68 "bad record"); | |
| 69 return (mr->base() == base_addr && mr->size() == size()); | |
| 70 } else { | |
|
6741
33143ee07800
7181995: NMT ON: NMT assertion failure assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record
zgu
parents:
6607
diff
changeset
|
71 ShouldNotReachHere(); |
| 6197 | 72 return false; |
| 73 } | |
| 74 } |