35 lines
1.3 KiB
Diff
35 lines
1.3 KiB
Diff
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# HG changeset patch
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# User rkennke
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# Date 1463083411 -7200
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# Thu May 12 22:03:31 2016 +0200
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# Node ID 632ccab070e6b8f0114f4c636508de5b9d7210ab
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# Parent 04726a0d70bbbdef63056ebfe3ef20bf21fb4be7
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Enable weak reference discovery in ShenandoahMarkCompact. Otherwise we never process any weak references in full-gc.
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diff --git a/src/share/vm/gc_implementation/shenandoah/shenandoahMarkCompact.cpp b/src/share/vm/gc_implementation/shenandoah/shenandoahMarkCompact.cpp
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--- openjdk/hotspot/src/share/vm/gc_implementation/shenandoah/shenandoahMarkCompact.cpp
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+++ openjdk/hotspot/src/share/vm/gc_implementation/shenandoah/shenandoahMarkCompact.cpp
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@@ -126,6 +126,8 @@
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ShenandoahMarkCompactBarrierSet bs(_heap);
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oopDesc::set_bs(&bs);
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+ _heap->set_need_update_refs(true);
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+
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OrderAccess::fence();
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phase1_mark_heap();
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@@ -260,6 +262,12 @@
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ShenandoahConcurrentMark* cm = _heap->concurrentMark();
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cm->prepare_unmarked_root_objs_no_derived_ptrs(true);
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+ if (ShenandoahProcessReferences) {
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+ ReferenceProcessor* rp = _heap->ref_processor();
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+ // enable ("weak") refs discovery
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+ rp->enable_discovery(true /*verify_no_refs*/, true);
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+ rp->setup_policy(true); // snapshot the soft ref policy to be used in this cycle
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+ }
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cm->shared_finish_mark_from_roots();
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if (VerifyDuringGC) {
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