--- a/src/hotspot/share/runtime/mutexLocker.cpp Fri Aug 09 10:06:44 2019 +0200
+++ b/src/hotspot/share/runtime/mutexLocker.cpp Fri Aug 09 11:04:08 2019 +0200
@@ -287,7 +287,7 @@
// CMS_bitMap_lock leaf 1
// CMS_freeList_lock leaf 2
- def(Threads_lock , PaddedMonitor, barrier, true, Monitor::_safepoint_check_sometimes); // Used for safepoint protocol.
+ def(Threads_lock , PaddedMonitor, barrier, true, Monitor::_safepoint_check_always); // Used for safepoint protocol.
def(NonJavaThreadsList_lock , PaddedMutex, leaf, true, Monitor::_safepoint_check_never);
def(NonJavaThreadsListSync_lock , PaddedMutex, leaf, true, Monitor::_safepoint_check_never);