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8025550: valgrind: Conditional jump depends on uninitialised value in Arena::set_size_in_bytes()

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Fixed initialized variable that could miscount arena memory

Reviewed-by: coleenp, ccheung
This commit is contained in:
Zhengyu Gu 2014-03-17 13:39:17 -04:00
parent 903d462556
commit da4aab3c1d
1 changed files with 2 additions and 0 deletions
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2
hotspot/src/share/vm/memory/allocation.cpp
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@ -446,6 +446,7 @@ Arena::Arena(size_t init_size) {
_first = _chunk = new (AllocFailStrategy::EXIT_OOM, init_size) Chunk(init_size);
_hwm = _chunk->bottom(); // Save the cached hwm, max
_max = _chunk->top();
_size_in_bytes = 0;
set_size_in_bytes(init_size);
NOT_PRODUCT(Atomic::inc(&_instance_count);)
}
@ -454,6 +455,7 @@ Arena::Arena() {
_first = _chunk = new (AllocFailStrategy::EXIT_OOM, Chunk::init_size) Chunk(Chunk::init_size);
_hwm = _chunk->bottom(); // Save the cached hwm, max
_max = _chunk->top();
_size_in_bytes = 0;
set_size_in_bytes(Chunk::init_size);
NOT_PRODUCT(Atomic::inc(&_instance_count);)
}