JDK-8223448 : Shenandoah disabled barriers blocks omit LRB
- Type: Bug
- Component: hotspot
- Sub-Component: gc
- Affected Version: 8-shenandoah,11-shenandoah,13
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- Submitted: 2019-05-07
- Updated: 2019-05-22
- Resolved: 2019-05-07
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| JDK 13 |
|---|
13 b20Fixed  |
Related Reports
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Relates :
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Description
There are missing clauses that check/disable LRB in initial Shenandoah configuration.
diff -r 3a75a903a488 src/hotspot/share/gc/shenandoah/shenandoahArguments.cpp
--- a/src/hotspot/share/gc/shenandoah/shenandoahArguments.cpp Mon May 06 19:20:26 2019 +0200
+++ b/src/hotspot/share/gc/shenandoah/shenandoahArguments.cpp Mon May 06 19:25:02 2019 +0200
@@ -45,6 +45,7 @@
FLAG_SET_DEFAULT(ShenandoahGCHeuristics, "passive");
FLAG_SET_DEFAULT(ShenandoahSATBBarrier, false);
+ FLAG_SET_DEFAULT(ShenandoahLoadRefBarrier, false);
FLAG_SET_DEFAULT(ShenandoahKeepAliveBarrier, false);
FLAG_SET_DEFAULT(ShenandoahStoreValEnqueueBarrier, false);
FLAG_SET_DEFAULT(ShenandoahCASBarrier, false);
@@ -106,6 +107,7 @@
// C2 barrier verification is only reliable when all default barriers are enabled
if (ShenandoahVerifyOptoBarriers &&
(!FLAG_IS_DEFAULT(ShenandoahSATBBarrier) ||
+ !FLAG_IS_DEFAULT(ShenandoahLoadRefBarrier) ||
!FLAG_IS_DEFAULT(ShenandoahKeepAliveBarrier) ||
!FLAG_IS_DEFAULT(ShenandoahStoreValEnqueueBarrier) ||
!FLAG_IS_DEFAULT(ShenandoahCASBarrier) ||
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