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8373695: G1: Using a value near integer max for ActiveProcessorCount causes fatal crash

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Reviewed-by: stefank, tschatzl
This commit is contained in:
Jonas Norlinder 2026-01-09 08:41:39 +00:00 committed by Thomas Schatzl
parent 423132895d
commit a855224305
1 changed files with 3 additions and 1 deletions
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4
src/hotspot/share/gc/g1/g1Arguments.cpp
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@ -36,6 +36,7 @@
#include "gc/shared/fullGCForwarding.hpp"
#include "gc/shared/gcArguments.hpp"
#include "gc/shared/workerPolicy.hpp"
#include "runtime/flags/jvmFlagLimit.hpp"
#include "runtime/globals.hpp"
#include "runtime/globals_extension.hpp"
#include "runtime/java.hpp"
@ -190,7 +191,8 @@ void G1Arguments::initialize() {
}
FLAG_SET_DEFAULT(G1ConcRefinementThreads, 0);
} else if (FLAG_IS_DEFAULT(G1ConcRefinementThreads)) {
FLAG_SET_ERGO(G1ConcRefinementThreads, ParallelGCThreads);
const JVMTypedFlagLimit<uint>* conc_refinement_threads_limits = JVMFlagLimit::get_range_at(FLAG_MEMBER_ENUM(G1ConcRefinementThreads))->cast<uint>();
FLAG_SET_ERGO(G1ConcRefinementThreads, MIN2(ParallelGCThreads, conc_refinement_threads_limits->max()));
}
if (FLAG_IS_DEFAULT(ConcGCThreads) || ConcGCThreads == 0) {