# HG changeset patch
# User kvn
# Date 1562548218 25200
# Node ID 3af213fe470450c8c5fd37e2b156d361f6737e7e
# Parent  040cb8bf265edabcb3117e66d233aab77a92d8d8
8225064: [Graal] Application SEGV in G1ParScanThreadState::copy_to_survivor_space(G1HeapRegionAttr, oopDesc*, markOopDesc*)+0x48
Summary: switch off ReduceInitialCardMarks optimization in Graal in JDK 13 (full fix is in JDK 14)
Reviewed-by: thartmann, never

diff -r 040cb8bf265e -r 3af213fe4704 src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/GraalHotSpotVMConfig.java
--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/GraalHotSpotVMConfig.java	Sun Jul 07 10:52:30 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot/src/org/graalvm/compiler/hotspot/GraalHotSpotVMConfig.java	Sun Jul 07 18:10:18 2019 -0700
@@ -179,7 +179,8 @@
         return universeCollectedHeap + collectedHeapTotalCollectionsOffset;
     }
 
-    public final boolean useDeferredInitBarriers = getFlag("ReduceInitialCardMarks", Boolean.class);
+    // Disable support for ReduceInitialCardMarks due to JDK-8225064.
+    public final boolean useDeferredInitBarriers = false;
 
     // Compressed Oops related values.
     public final boolean useCompressedOops = getFlag("UseCompressedOops", Boolean.class);