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8281297: TestStressG1Humongous fails with guarantee(is_range_uncommitted)

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Reviewed-by: eosterlund, iwalulya, tschatzl
This commit is contained in:
Leo Korinth 2022-05-09 07:16:54 +00:00
parent cdd1b0da14
commit 1ce72eabe5
1 changed files with 4 additions and 4 deletions
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8
src/hotspot/share/utilities/bitMap.cpp
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@ -232,10 +232,10 @@ void BitMap::par_put_range_within_word(idx_t beg, idx_t end, bool value) {
// With a valid range (beg <= end), this test ensures that end != 0, as
// required by inverted_bit_mask_for_range. Also avoids an unnecessary write.
if (beg != end) {
bm_word_t* pw = word_addr(beg);
bm_word_t w = *pw;
bm_word_t mr = inverted_bit_mask_for_range(beg, end);
bm_word_t nw = value ? (w | ~mr) : (w & mr);
volatile bm_word_t* pw = word_addr(beg);
bm_word_t w = Atomic::load(pw);
bm_word_t mr = inverted_bit_mask_for_range(beg, end);
bm_word_t nw = value ? (w | ~mr) : (w & mr);
while (true) {
bm_word_t res = Atomic::cmpxchg(pw, w, nw);
if (res == w) break;