27 lines
1.1 KiB
Diff
27 lines
1.1 KiB
Diff
From 07dabe012b6e9cddd9fef59551bc3d6f6962bbf7 Mon Sep 17 00:00:00 2001
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Subject: Backport-8057910: G1: BOT verification should not pass
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top
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---
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.../src/share/vm/gc_implementation/g1/g1BlockOffsetTable.cpp | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/hotspot/src/share/vm/gc_implementation/g1/g1BlockOffsetTable.cpp b/hotspot/src/share/vm/gc_implementation/g1/g1BlockOffsetTable.cpp
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index b908e8faf..b0b891d85 100644
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--- a/hotspot/src/share/vm/gc_implementation/g1/g1BlockOffsetTable.cpp
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+++ b/hotspot/src/share/vm/gc_implementation/g1/g1BlockOffsetTable.cpp
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@@ -371,8 +371,9 @@ void G1BlockOffsetArray::alloc_block_work2(HeapWord** threshold_, size_t* index_
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}
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void G1BlockOffsetArray::verify() const {
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+ assert(gsp()->bottom() < gsp()->top(), "Only non-empty regions should be verified.");
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size_t start_card = _array->index_for(gsp()->bottom());
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- size_t end_card = _array->index_for(gsp()->top());
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+ size_t end_card = _array->index_for(gsp()->top() - 1);
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for (size_t current_card = start_card; current_card < end_card; current_card++) {
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u_char entry = _array->offset_array(current_card);
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--
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2.22.0
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