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Type: Enhancement
Resolution: Fixed
Priority: P4
Fix Version/s: 13
Affects Version/s: 12
Component/s: hotspot
Labels:
- oracle-triage-13

Subcomponent:
runtime
Resolved In Build:
b07

There are certain types of global lock that may be held by a Java thread while it is blocked at a safepoint but before it has written the _owner field. These locks may be sneakily acquired by the VM thread during a safepoint to avoid deadlocks.
Alternatively, one should identify all such locks, and ensure that Java threads never block at safepoints while holding them (_no_safepoint_check_flag). While it seems as though this could increase the time to reach a safepoint (or at least increase the mean, if not the variance), the latter approach might make for a cleaner, more maintainable JVM design.

duplicates

JDK-8170643 Remove mixed-size accesses to the LockWord

Closed

JDK-8217755 SuspendThread might hang expecting lock in JavaThread::is_ext_suspend_completed

Closed

relates to

JDK-5030646 CMS: atg crashed with fastdebug build on rhas_3.0 SP1

Closed

JDK-8213137 Remove static initialization of monitor/mutex instances

Resolved

JDK-8213105 Reorder methods in mutex.cpp so related ones are near each other

Closed

JDK-8219642 ciReplay loads wrong data when MethodData size changes

Resolved

JDK-8256383 PlatformMutex::try_lock has different semantics on Windows and Posix

Resolved

JDK-8218975 Bug in macOSX kernel's pthread support

Closed

JDK-8219448 split-if update_uses accesses stale idom data

Closed

JDK-8230292 Handshakes can live-lock causing a stack overflow.

Closed

JDK-8214174 runtime/handshake/HandshakeWalkSuspendExitTest.java failed with timeout

Closed

JDK-8074355 make MutexLocker smarter about non-JavaThreads

Resolved

(7 relates to)

Assignee:: Patricio Chilano Mateo
Reporter:: Patricio Chilano Mateo
Votes:: 0 Vote for this issue
Watchers:: 12 Start watching this issue

Created:: 2018-09-17 10:32
Updated:: 2023-03-13 17:49
Resolved:: 2019-02-05 12:20

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