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Proposal by Stefan J

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This commit is contained in:
Leo Korinth 2026-01-19 09:35:51 +01:00
parent 60acf651e0
commit 5703deb18b
2 changed files with 3 additions and 14 deletions
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15
src/hotspot/share/gc/shared/workerThread.cpp
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@ -93,12 +93,7 @@ void WorkerThreads::initialize_workers() {
}
}
bool WorkerThreads::should_inject_gc_worker_creation_failure() const {
if (!InjectGCWorkerCreationFailure) {
// Never inject worker creation failure if not explicitly asked to do so
return false;
}
bool WorkerThreads::allow_creation_failure() const {
if (!is_init_completed()) {
// Never allow creation failures during VM init
return false;
@ -110,16 +105,10 @@ bool WorkerThreads::should_inject_gc_worker_creation_failure() const {
}
return true;
// Inject worker creation failure iff all three below conditions hold:
// 1) explicitly asked to do so (InjectGCWorkerCreationFailure);
// 2) outside VM init (before init, the code will kill the process and the uncommon path can not be tested);
// 3) not the first worker (for the same reason as point number 2 if in the future we will implement lazy init of concurrent mark in g1).
return InjectGCWorkerCreationFailure && is_init_completed() && (_created_workers != 0);
}
WorkerThread* WorkerThreads::create_worker(uint name_suffix) {
if (should_inject_gc_worker_creation_failure()) {
if (InjectGCWorkerCreationFailure && allow_creation_failure()) {
return nullptr;
}

2
src/hotspot/share/gc/shared/workerThread.hpp
View File

@ -103,7 +103,7 @@ public:
WorkerThreads(const char* name, uint max_workers);
void initialize_workers();
bool should_inject_gc_worker_creation_failure() const;
bool allow_creation_failure() const;
uint max_workers() const { return _max_workers; }
uint created_workers() const { return _created_workers; }