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This commit is contained in:
J. Duke 2017-08-24 16:36:19 +02:00
commit 5e3c97d650
4 changed files with 22 additions and 3 deletions
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3
.hgtags-top-repo
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@ -441,3 +441,6 @@ ec4159ebe7050fcc5dcee8a2d150cf948ecc97db jdk-9+178
252475ccfd84cc249f8d6faf4b7806b5e2c384ce jdk-9+179
a133a7d1007b1456bc62824382fd8ac93b45d329 jdk-10+17
536b81db8075486ca0fe3225d8e59313df5b936c jdk-10+18
b803e6cff41e72a1e6d8782e1ef7c25a6e3e5ee3 jdk-10+19
d2982a786f53814367698e63efe6349c9128e1db jdk-9+180
b656dea9398ef601f7fc08d1a5157a560e0ccbe0 jdk-9+181

3
hotspot/.hgtags
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@ -601,3 +601,6 @@ c1f3649a3a42f124b418a5a916dbad13d059b757 jdk-10+15
d2661aa42bff322badbe6c1337fc638d2e0f5730 jdk-9+179
73e2cb8700bfa51304bd4b02f224620859a3f600 jdk-10+17
c9d3317623d48da3327232c81e3f8cfc0d29d888 jdk-10+18
33b74e13c1457f36041addb8b850831f81ca6e9f jdk-10+19
d7baadc223e790c08bc69bf7e553bce65b4e7e40 jdk-9+180
4a443796f6f57842d6a0434ac27ca3d1033ccc20 jdk-9+181

11
hotspot/src/share/vm/gc/g1/g1CollectedHeap.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2001, 2017, Oracle and/or its affiliates. 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
@ -4389,6 +4389,15 @@ void G1CollectedHeap::enqueue_discovered_references(G1ParScanThreadStateSet* per
rp->verify_no_references_recorded();
assert(!rp->discovery_enabled(), "should have been disabled");
// If during an initial mark pause we install a pending list head which is not otherwise reachable
// ensure that it is marked in the bitmap for concurrent marking to discover.
if (collector_state()->during_initial_mark_pause()) {
oop pll_head = Universe::reference_pending_list();
if (pll_head != NULL) {
_cm->grayRoot(pll_head);
}
}
// FIXME
// CM's reference processing also cleans up the string and symbol tables.
// Should we do that here also? We could, but it is a serial operation

8
hotspot/src/share/vm/memory/universe.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2017, Oracle and/or its affiliates. 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
@ -497,7 +497,11 @@ void Universe::fixup_mirrors(TRAPS) {
#define assert_pll_ownership() assert_pll_locked(owned_by_self)
oop Universe::reference_pending_list() {
assert_pll_ownership();
if (Thread::current()->is_VM_thread()) {
assert_pll_locked(is_locked);
} else {
assert_pll_ownership();
}
return _reference_pending_list;
}