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8272791: java -XX:BlockZeroingLowLimit=1 crashes after 8270947

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Reviewed-by: shade, kvn
This commit is contained in:
Andrew Haley 2022-05-25 09:03:13 +00:00
parent f7a37f5886
commit e17118aa8a
2 changed files with 2 additions and 2 deletions
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2
src/hotspot/cpu/aarch64/globals_aarch64.hpp
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@ -105,7 +105,7 @@ define_pd_global(intx, InlineSmallCode, 1000);
"Use DC ZVA for block zeroing") \
product(intx, BlockZeroingLowLimit, 256, \
"Minimum size in bytes when block zeroing will be used") \
range(1, max_jint) \
range(wordSize, max_jint) \
product(bool, TraceTraps, false, "Trace all traps the signal handler")\
product(int, SoftwarePrefetchHintDistance, -1, \
"Use prfm hint with specified distance in compiled code." \

2
src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp
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@ -4867,7 +4867,7 @@ address MacroAssembler::zero_words(Register ptr, Register cnt)
// r10, r11, rscratch1, and rscratch2 are clobbered.
address MacroAssembler::zero_words(Register base, uint64_t cnt)
{
guarantee(zero_words_block_size < BlockZeroingLowLimit,
assert(wordSize <= BlockZeroingLowLimit,
"increase BlockZeroingLowLimit");
address result = nullptr;
if (cnt <= (uint64_t)BlockZeroingLowLimit / BytesPerWord) {