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8229778: TestJstatdDefaults.java failed due to "fatal error: LEAF method calling lock?"

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Reviewed-by: dholmes, dcubed
This commit is contained in:
Robbin Ehn 2019-09-24 08:54:39 +02:00
parent 35bfbfd600
commit bb56c020f4
1 changed files with 4 additions and 1 deletions
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5
src/hotspot/share/runtime/thread.cpp
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@ -1803,7 +1803,10 @@ bool JavaThread::reguard_stack(void) {
void JavaThread::block_if_vm_exited() { void JavaThread::block_if_vm_exited() {
if (_terminated == _vm_exited) { if (_terminated == _vm_exited) {
// _vm_exited is set at safepoint, and Threads_lock is never released // _vm_exited is set at safepoint, and Threads_lock is never released
// we will block here forever // 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.
set_thread_state(_thread_in_vm);
Threads_lock->lock(); Threads_lock->lock();
ShouldNotReachHere(); ShouldNotReachHere();
} }