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8289003: JavaThread::check_is_terminated() implementation should rely on Thread-SMR

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Reviewed-by: dholmes, pchilanomate
This commit is contained in:
Daniel D. Daugherty 2022-07-16 13:17:52 +00:00
parent 2342684f2c
commit 441c33f0b1
3 changed files with 8 additions and 9 deletions
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5
src/hotspot/share/runtime/javaThread.cpp
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@ -564,9 +564,10 @@ bool JavaThread::is_interrupted(bool clear_interrupted) {
void JavaThread::block_if_vm_exited() {
if (_terminated == _vm_exited) {
// _vm_exited is set at safepoint, and Threads_lock is never released
// we will block here forever.
// so we will block here forever.
// Here we can be doing a jump from a safe state to an unsafe state without
// proper transition, but it happens after the final safepoint has begun.
// proper transition, but it happens after the final safepoint has begun so
// this jump won't cause any safepoint problems.
set_thread_state(_thread_in_vm);
Threads_lock->lock();
ShouldNotReachHere();