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8369447: GenShen: Regulator thread may observe inconsistent states

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Reviewed-by: kdnilsen, ysr
This commit is contained in:
William Kemper 2025-10-17 23:50:06 +00:00
parent 49b17dd5c9
commit 926f61f2e3
1 changed files with 3 additions and 0 deletions
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3
src/hotspot/share/gc/shenandoah/shenandoahRegulatorThread.cpp
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@ -58,6 +58,7 @@ void ShenandoahRegulatorThread::run_service() {
void ShenandoahRegulatorThread::regulate_young_and_old_cycles() {
while (!should_terminate()) {
SuspendibleThreadSetJoiner joiner;
ShenandoahGenerationalControlThread::GCMode mode = _control_thread->gc_mode();
if (mode == ShenandoahGenerationalControlThread::none) {
if (should_start_metaspace_gc()) {
@ -95,6 +96,7 @@ void ShenandoahRegulatorThread::regulate_young_and_old_cycles() {
void ShenandoahRegulatorThread::regulate_young_and_global_cycles() {
while (!should_terminate()) {
SuspendibleThreadSetJoiner joiner;
if (_control_thread->gc_mode() == ShenandoahGenerationalControlThread::none) {
if (start_global_cycle()) {
log_debug(gc)("Heuristics request for global collection accepted.");
@ -122,6 +124,7 @@ void ShenandoahRegulatorThread::regulator_sleep() {
_last_sleep_adjust_time = current;
}
SuspendibleThreadSetLeaver leaver;
os::naked_short_sleep(_sleep);
if (LogTarget(Debug, gc, thread)::is_enabled()) {
double elapsed = os::elapsedTime() - current;