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8224508: Shenandoah: Need to update thread roots in final mark for piggyback ref update cycle

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Reviewed-by: shade, rkennke
This commit is contained in:
Zhengyu Gu 2019-05-22 07:12:18 -04:00
parent d3ccef96e5
commit 6beb19a361
1 changed files with 8 additions and 4 deletions
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12
src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
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@ -1505,10 +1505,14 @@ void ShenandoahHeap::op_final_mark() {
if (!cancelled_gc()) {
concurrent_mark()->finish_mark_from_roots(/* full_gc = */ false);
// Degen may be caused by failed evacuation of roots
if (is_degenerated_gc_in_progress() && has_forwarded_objects()) {
concurrent_mark()->update_roots(ShenandoahPhaseTimings::degen_gc_update_roots);
}
if (has_forwarded_objects()) {
// Degen may be caused by failed evacuation of roots
if (is_degenerated_gc_in_progress()) {
concurrent_mark()->update_roots(ShenandoahPhaseTimings::degen_gc_update_roots);
} else {
concurrent_mark()->update_thread_roots(ShenandoahPhaseTimings::update_roots);
}
}
if (ShenandoahVerify) {
verifier()->verify_roots_no_forwarded();