On Wed, 6 Mar 2024 06:28:01 GMT, Serguei Spitsyn <sspit...@openjdk.org> wrote:
>> Please, review this fix correcting the JVMTI `RawMonitorWait()` >> implementation. >> The `RawMonitorWait()` is using the the `jt->is_interrupted(true)` to >> update the interrupt status of the interrupted waiting thread. The issue is >> that when it calls `jt->is_interrupted(true)` to fetch and clear the >> `interrupt status` of the virtual thread, this information is not propagated >> to the `java.lang.Thread` instance. >> In the `VirtualThread` class implementation the `interrupt status` for >> virtual thread is stored for both virtual and carrier threads. It is because >> the implementation of object monitors for virtual threads is based on >> pinning virtual threads, and so, always operates on carrier thread. The fix >> is to clear the interrupt status for both virtual and carrier >> `java.lang.Thread` instances. >> >> Testing: >> - tested with new test >> `hotspot/jtreg/serviceability/jvmti/vthread/InterruptRawMonitor` which is >> passed with the fix and failed without it >> - ran mach5 tiers 1-6 > > Serguei Spitsyn has updated the pull request incrementally with one > additional commit since the last revision: > > review: improved sync in new test InterruptRawMonitor Added `ObjectLocker` of the `interruptLock` for sync to the `JavaThread::is_interrupted()`. ------------- PR Comment: https://git.openjdk.org/jdk/pull/18093#issuecomment-1980391743
