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8043239: G1: Missing post barrier in processing of j.l.ref.Reference objects

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Removed all write barriers during reference processing and added explicit write barriers when iterating through the discovered list.

Reviewed-by: pliden, jmasa, tschatzl
This commit is contained in:
Bengt Rutisson 2014-06-03 10:44:36 +02:00
parent 3e5805dc08
commit 426151a22e
7 changed files with 38 additions and 96 deletions
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3
hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
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@ -311,8 +311,7 @@ void CMSCollector::ref_processor_init() {
_cmsGen->refs_discovery_is_mt(), // mt discovery
(int) MAX2(ConcGCThreads, ParallelGCThreads), // mt discovery degree
_cmsGen->refs_discovery_is_atomic(), // discovery is not atomic
&_is_alive_closure, // closure for liveness info
false); // next field updates do not need write barrier
&_is_alive_closure); // closure for liveness info
// Initialize the _ref_processor field of CMSGen
_cmsGen->set_ref_processor(_ref_processor);