OpenJDK java/lang/Thread/virtual/Collectable.java timeout #18463

pshipton · 2023-11-16T13:19:20Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0/96 - win2019x64-openj9-4
jdk_lang_j9_0
java/lang/Thread/virtual/Collectable.java

https://openj9-artifactory.osuosl.org/artifactory/ci-openj9/Test/Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0/96/openjdk_test_output.tar.gz

20:54:55  ACTION: junit -- Error. Program `C:\Users\jenkins\workspace\Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0\jdkbinary\j2sdk-image\bin\java' timed out (timeout set to 960000ms, elapsed time including timeout handling was 980797ms).
20:54:55  REASON: User specified action: run junit/othervm -Xjit:enableAggressiveLiveness Collectable 
20:54:55  TIME:   980.813 seconds
20:54:55  messages:
20:54:55  command: junit -Xjit:enableAggressiveLiveness Collectable
20:54:55  reason: User specified action: run junit/othervm -Xjit:enableAggressiveLiveness Collectable 
20:54:55  started: Wed Nov 15 20:38:29 EST 2023
20:54:55  Mode: othervm [/othervm specified]
20:54:55  Timeout information:
20:54:55  Running jcmd on process 1960
20:54:55  Dump written to C:\Users\jenkins\workspace\Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0\aqa-tests\TKG\output_17000937787349\jdk_lang_j9_0\work\scratch\1\core.20231115.205430.1960.0001.dmp
20:54:55  Dump written to C:\Users\jenkins\workspace\Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0\aqa-tests\TKG\output_17000937787349\jdk_lang_j9_0\work\scratch\1\javacore.20231115.205448.1960.0002.txt
20:54:55  Running jstack on process 1960
20:54:55  2023-11-15T20:54:49.048391400
20:54:55  Virtual machine: 1960 JVM information:
20:54:55  JRE 21 Windows Server 2019 amd64-64-Bit 20231115_107 (JIT enabled, AOT enabled)
20:54:55  OpenJ9   - a7076bc0e4a
20:54:55  OMR      - 07a175a4d23
20:54:55  JCL      - 4b666c7419b based on jdk-21.0.1+12
20:54:55  
20:54:55  "main" prio=5 Id=2 WAITING
20:54:55  	at java.base@21.0.1-internal/java.lang.Object.waitImpl(Native Method)
20:54:55  	at java.base@21.0.1-internal/java.lang.Object.wait(Object.java:255)
20:54:55  	at java.base@21.0.1-internal/java.lang.Object.wait(Object.java:221)
20:54:55  	at java.base@21.0.1-internal/java.lang.Thread.join(Thread.java:2105)
20:54:55  	at java.base@21.0.1-internal/java.lang.Thread.join(Thread.java:2181)
20:54:55  	at app//com.sun.javatest.regtest.agent.MainWrapper.main(MainWrapper.java:85)
20:54:55  
20:54:55  "JIT Compilation Thread-000" prio=10 Id=4 RUNNABLE
20:54:55  
20:54:55  "JIT Compilation Thread-001 Suspended" prio=10 Id=5 RUNNABLE
20:54:55  
20:54:55  "JIT Compilation Thread-002 Suspended" prio=10 Id=6 RUNNABLE
20:54:55  
20:54:55  "JIT Diagnostic Compilation Thread-003 Suspended" prio=10 Id=7 RUNNABLE
20:54:55  
20:54:55  "JIT-SamplerThread" prio=10 Id=8 TIMED_WAITING
20:54:55  
20:54:55  "IProfiler" prio=5 Id=9 RUNNABLE
20:54:55  
20:54:55  "Common-Cleaner" prio=8 Id=3 TIMED_WAITING
20:54:55  	at java.base@21.0.1-internal/java.lang.Object.waitImpl(Native Method)
20:54:55  	at java.base@21.0.1-internal/java.lang.Object.wait(Object.java:255)
20:54:55  	at java.base@21.0.1-internal/java.lang.Object.wait(Object.java:221)
20:54:55  	at java.base@21.0.1-internal/java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:137)
20:54:55  	at java.base@21.0.1-internal/jdk.internal.ref.CleanerImpl.run(CleanerImpl.java:140)
20:54:55  	at java.base@21.0.1-internal/java.lang.Thread.run(Thread.java:1595)
20:54:55  	at java.base@21.0.1-internal/jdk.internal.misc.InnocuousThread.run(InnocuousThread.java:186)
20:54:55  
20:54:55  "Dedicated GC Main" prio=5 Id=10 RUNNABLE
20:54:55  
20:54:55  "GC Worker" prio=5 Id=11 RUNNABLE
20:54:55  
20:54:55  "GC Worker" prio=5 Id=12 RUNNABLE
20:54:55  
20:54:55  "GC Worker" prio=5 Id=13 RUNNABLE
20:54:55  
20:54:55  "Attach API wait loop" prio=10 Id=16 RUNNABLE
20:54:55  	at java.base@21.0.1-internal/openj9.internal.tools.attach.target.IPC.waitSemaphore(Native Method)
20:54:55  	at java.base@21.0.1-internal/openj9.internal.tools.attach.target.CommonDirectory.waitSemaphore(CommonDirectory.java:264)
20:54:55  	at java.base@21.0.1-internal/openj9.internal.tools.attach.target.WaitLoop.waitForNotification(WaitLoop.java:66)
20:54:55  	at java.base@21.0.1-internal/openj9.internal.tools.attach.target.WaitLoop.run(WaitLoop.java:157)
20:54:55  
20:54:55  "MainThread" prio=5 Id=17 TIMED_WAITING
20:54:55  	at java.base@21.0.1-internal/java.lang.Thread.sleepImpl(Native Method)
20:54:55  	at java.base@21.0.1-internal/java.lang.Thread.sleep(Thread.java:516)
20:54:55  	at app//Collectable.waitUntilCleared(Collectable.java:65)
20:54:55  	at app//Collectable.testUnstartedThread(Collectable.java:46)
20:54:55  	at java.base@21.0.1-internal/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
20:54:55  	at java.base@21.0.1-internal/java.lang.reflect.Method.invoke(Method.java:580)
20:54:55  	at app//org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727)
20:54:55  	at app//org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)
20:54:55  	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)
20:54:55  	at app//org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156)
20:54:55  	at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147)
20:54:55  	at app//org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86)
20:54:55  	at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103)
20:54:55  	at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93)
20:54:55  	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)
20:54:55  	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)
20:54:55  	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)
20:54:55  	at app//org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)
20:54:55  	at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92)
20:54:55  	at app//org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86)
20:54:55  	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
20:54:55  	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213)
20:54:55  	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138)
20:54:55  	at app//org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
20:54:55  	at java.base@21.0.1-internal/java.util.ArrayList.forEach(ArrayList.java:1596)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
20:54:55  	at java.base@21.0.1-internal/java.util.ArrayList.forEach(ArrayList.java:1596)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
20:54:55  	at app//org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54)
20:54:55  	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147)
20:54:55  	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127)
20:54:55  	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90)
20:54:55  	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55)
20:54:55  	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102)
20:54:55  	at app//org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54)
20:54:55  	at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114)
20:54:55  	at app//org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86)
20:54:55  	at app//org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86)
20:54:55  	at app//com.sun.javatest.regtest.agent.JUnitRunner.runWithJUnitPlatform(JUnitRunner.java:142)
20:54:55  	at app//com.sun.javatest.regtest.agent.JUnitRunner.main(JUnitRunner.java:95)
20:54:55  	at app//com.sun.javatest.regtest.agent.JUnitRunner.main(JUnitRunner.java:61)
20:54:55  	at java.base@21.0.1-internal/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
20:54:55  	at java.base@21.0.1-internal/java.lang.reflect.Method.invoke(Method.java:580)
20:54:55  	at app//com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
20:54:55  	at java.base@21.0.1-internal/java.lang.Thread.run(Thread.java:1595)
20:54:55  
20:54:55  "Finalizer thread" prio=5 Id=19 RUNNABLE
20:54:55  
20:54:55  "file lock watchdog" prio=10 Id=24 TIMED_WAITING
20:54:55  	at java.base@21.0.1-internal/java.lang.Object.waitImpl(Native Method)
20:54:55  	at java.base@21.0.1-internal/java.lang.Object.wait(Object.java:255)
20:54:55  	at java.base@21.0.1-internal/java.lang.Object.wait(Object.java:221)
20:54:55  	at java.base@21.0.1-internal/java.util.TimerThread.mainLoop(Timer.java:570)
20:54:55  	at java.base@21.0.1-internal/java.util.TimerThread.run(Timer.java:523)
20:54:55  
20:54:55  "Attachment portNumber: 51208" prio=10 Id=26 RUNNABLE
20:54:55  	at java.base@21.0.1-internal/openj9.internal.tools.attach.target.DiagnosticUtils.dumpAllThreadsImpl(Native Method)
20:54:55  	at java.base@21.0.1-internal/openj9.internal.tools.attach.target.DiagnosticUtils.getThreadInfo(DiagnosticUtils.java:249)
20:54:55  	at java.base@21.0.1-internal/openj9.internal.tools.attach.target.DiagnosticUtils.executeDiagnosticCommand(DiagnosticUtils.java:185)
20:54:55  	at java.base@21.0.1-internal/openj9.internal.tools.attach.target.Attachment.doCommand(Attachment.java:248)
20:54:55  	at java.base@21.0.1-internal/openj9.internal.tools.attach.target.Attachment.run(Attachment.java:159)
20:54:55  
20:54:55  
20:54:55  --- Timeout information end.

The text was updated successfully, but these errors were encountered:

babsingh · 2023-11-17T16:27:56Z

The test creates a weak reference for an unstarted virtual thread, sets the thread variable to null, and waits till the unstarted thread is collected by the GC. The timeout happens after 960 seconds.

Test source code: Collectable.java#L46C5-L46C5

    @Test
    void testUnstartedThread() {
        var thread = Thread.ofVirtual().unstarted(() -> { });
        var ref = new WeakReference<>(thread);
        thread = null;
        waitUntilCleared(ref);
    }

    private static void waitUntilCleared(WeakReference<?> ref) {
        while (ref.get() != null) {
            System.gc();
            try {
                Thread.sleep(50);
            } catch (InterruptedException ignore) { }
        }
    }

babsingh · 2023-11-17T16:44:30Z

Behaviour similar to #17241 is seen in this issue. #17241 was addressed by running the test with -Xjit:enableAggressiveLiveness. In this case, the virtual thread object is in an I-slot not an O-slot.

Requesting feedback from the GC team: @dmitripivkine, @LinHu2016, @amicic.

fyi @0xdaryl

> !stackslots 0x1cfdb27e300
<1cfdb27e300> *** BEGIN STACK WALK, flags = 00400001 walkThread = 1,992,246,682,368 ***
<1cfdb27e300> 	ITERATE_O_SLOTS
<1cfdb27e300> 	RECORD_BYTECODE_PC_OFFSET
<1cfdb27e300> Initial values: walkSP = 0x000001CFDB374D68, PC = 0x0000000000000006, literals = 0x0000000000000000, A0 = 0x000001CFDB374DD0, j2iFrame = 0x000001CFDB375728, decomp = 0x0000000000000000
<1cfdb27e300> JIT JNI call-out frame: bp = 0x000001CFDB374D88, sp = 0x000001CFDB374D68, pc = 0x0000000000000006, cp = 0x000001CFDAF7C140, arg0EA = 0x000001CFDB374DD0, flags = 0x0000000020000000
<1cfdb27e300> 	Method: java/lang/Thread.sleepImpl(JI)V !j9method 0x000001CFDAF7D5D0
<1cfdb27e300> JIT frame: bp = 0x000001CFDB374DD8, pc = 0x00007FFB3EFDEC52, unwindSP = 0x000001CFDB374D90, cp = 0x000001CFDAF7C140, arg0EA = 0x000001CFDB374DE8, jitInfo = 0x000001CFDB7FEB68
<1cfdb27e300> 	Method: java/lang/Thread.sleep(J)V !j9method 0x000001CFDAF7D5B0
<1cfdb27e300> 	Bytecode index = 61, inlineDepth = 0, PC offset = 0x0000000000000132
<1cfdb27e300> 	stackMap=0x000001CFDB7FED46, slots=I16(0x0002) parmBaseOffset=I16(0x0018), parmSlots=U16(0x0000), localBaseOffset=I16(0xFFF0)
<1cfdb27e300> 	Described JIT temps starting at 0x000001CFDB374DC8 for IDATA(0x0000000000000002) slots
<1cfdb27e300> 		O-Slot: : t1[0x000001CFDB374DC8] = 0x0000000000000000
<1cfdb27e300> 		O-Slot: : t0[0x000001CFDB374DD0] = 0x0000000000000000
<1cfdb27e300> 	JIT-RegisterMap = UDATA(0x0000000000000000)
<1cfdb27e300> 	JIT-Frame-RegisterMap[0x000001CFDB374DB0] = UDATA(0x0000000000000001) (jit_rbx)
<1cfdb27e300> 	JIT-Frame-RegisterMap[0x000001CFDB374DB8] = UDATA(0x000001CFBCA2BE50) (jit_r9)
<1cfdb27e300> JIT frame: bp = 0x000001CFDB374E18, pc = 0x00007FFB3EFD46AD, unwindSP = 0x000001CFDB374DE0, cp = 0x000001CFDB355CD0, arg0EA = 0x000001CFDB374E20, jitInfo = 0x000001CFDB7F7B68
<1cfdb27e300> 	Method: Collectable.waitUntilCleared(Ljava/lang/ref/WeakReference;)V !j9method 0x000001CFDB355EE8
<1cfdb27e300> 	Bytecode index = 13, inlineDepth = 0, PC offset = 0xFFFFFFFFFFFF898D
<1cfdb27e300> 	stackMap=0x000001CFDB7F7CB8, slots=I16(0x0001) parmBaseOffset=I16(0x0008), parmSlots=U16(0x0001), localBaseOffset=I16(0xFFE8)
<1cfdb27e300> 	Described JIT args starting at 0x000001CFDB374E20 for U16(0x0001) slots
<1cfdb27e300> 		O-Slot: : a0[0x000001CFDB374E20] = 0x00007FF48F8D4900 <--- // WeakReference
<1cfdb27e300> 	Described JIT temps starting at 0x000001CFDB374E00 for IDATA(0x0000000000000003) slots
<1cfdb27e300> 		I-Slot: : t2[0x000001CFDB374E00] = 0x00007FF48F8D4770 <--- // VirtualThread
<1cfdb27e300> 		I-Slot: : t1[0x000001CFDB374E08] = 0x00007FFB531700D0
<1cfdb27e300> 		I-Slot: : t0[0x000001CFDB374E10] = 0x00007FF48FCA11F8
<1cfdb27e300> 	JIT-RegisterMap = UDATA(0x0000000000000000)
<1cfdb27e300> 	JIT-Frame-RegisterMap[0x000001CFDB374DB0] = UDATA(0x0000000000000001) (jit_rbx)
<1cfdb27e300> 	JIT-Frame-RegisterMap[0x000001CFDB374DB8] = UDATA(0x000001CFBCA2BE50) (jit_r9)
<1cfdb27e300> I2J values: PC = 0x000001CFDB337756, A0 = 0x000001CFDB374E58, walkSP = 0x000001CFDB374E30, literals = 0x000001CFDB355EA8, JIT PC = 0x00007FFB531700D0, pcAddress = 0x0000005A08C7F628, decomp = 0x0000000000000000
<1cfdb27e300> Bytecode frame: bp = 0x000001CFDB374E40, sp = 0x000001CFDB374E30, pc = 0x000001CFDB337756, cp = 0x000001CFDB355CD0, arg0EA = 0x000001CFDB374E58, flags = 0x0000000000000000
<1cfdb27e300> 	Method: Collectable.testUnstartedThread()V !j9method 0x000001CFDB355EA8
<1cfdb27e300> 	Bytecode index = 26
<1cfdb27e300> 	Using local mapper
<1cfdb27e300> 	Locals starting at 0x000001CFDB374E58 for 0x0000000000000003 slots
<1cfdb27e300> 		I-Slot: a0[0x000001CFDB374E58] = 0x00007FF48FC974B8
<1cfdb27e300> 		I-Slot: t1[0x000001CFDB374E50] = 0x0000000000000000
<1cfdb27e300> 		I-Slot: t2[0x000001CFDB374E48] = 0x00007FF48FCA1388

dmitripivkine · 2023-11-17T17:01:01Z

looking briefly to the core...
Weak Reference !j9object 0x00007FF48F8D4900
VirtualThread !j9object 0x7ff48f8d4770 marked (alive)

Referenced from:

> !findall u64 0x00007FF48F8D4770
Scanning memory for 70 47 8d 8f f4 7f 00 00 aligned to 8 starting from 0x0
Match found at 0x1cfdb374e00		I-Slot: : t2[0x000001CFDB374E00] = 0x00007FF48F8D4770 <-- does not keep alive
Match found at 0x7ff48f8d4898		VirtualThread$VThreadContinuation -> vthread <-- alive
Match found at 0x7ff48f8d48d8		VirtualThread$VThreadContinuation$1 -> val$vthread <-- alive
Match found at 0x7ff48f8d48f8		VirtualThread$$Lambda/0x00000000dbca9ef0 -> arg$1 <-- alive
Match found at 0x7ff48f8d4918		WeakReference -> referent <-- does not keep alive
No more matches

Please let me know if you need more digging results.

babsingh · 2023-11-17T17:29:26Z

Why are they not being collected? All three can be collected if the virtual thread has no more references. The objects below are internal to the VirtualThread class.

Match found at 0x7ff48f8d4898		VirtualThread$VThreadContinuation -> vthread <-- alive
Match found at 0x7ff48f8d48d8		VirtualThread$VThreadContinuation$1 -> val$vthread <-- alive
Match found at 0x7ff48f8d48f8		VirtualThread$$Lambda/0x00000000dbca9ef0 -> arg$1 <-- alive

babsingh · 2023-11-20T19:47:38Z

Launched grinders to see if this issue is a blocker for the 0.42 release:

250x on win2019x64-openj9-4: https://openj9-jenkins.osuosl.org/job/Grinder/3061
50x on 5 different machines (250x in total): https://openj9-jenkins.osuosl.org/job/Grinder/3062

No failures are seen in the above grinders. Moving this issue to the 0.44 release due to low occurrence.

dmitripivkine · 2023-11-21T15:23:22Z

@babsingh Would you please double check somehow that 0x000001CFDB374E00 is an I-slot as reported by my DDR and not reported to GC as a root? (have suspicion in correctness of DDR reporting due failures in stack walk).

<1cfdb27e300> JIT frame: bp = 0x000001CFDB374E18, pc = 0x00007FFB3EFD46AD, unwindSP = 0x000001CFDB374DE0, cp = 0x000001CFDB355CD0, arg0EA = 0x000001CFDB374E20, jitInfo = 0x000001CFDB7F7B68
<1cfdb27e300> 	Method: Collectable.waitUntilCleared(Ljava/lang/ref/WeakReference;)V !j9method 0x000001CFDB355EE8
<1cfdb27e300> 	Bytecode index = 13, inlineDepth = 0, PC offset = 0xFFFFFFFFFFFF898D
<1cfdb27e300> 	stackMap=0x000001CFDB7F7CB8, slots=I16(0x0001) parmBaseOffset=I16(0x0008), parmSlots=U16(0x0001), localBaseOffset=I16(0xFFE8)
<1cfdb27e300> 	Described JIT args starting at 0x000001CFDB374E20 for U16(0x0001) slots
<1cfdb27e300> 		O-Slot: : a0[0x000001CFDB374E20] = 0x00007FF48F8D4900
<1cfdb27e300> 	Described JIT temps starting at 0x000001CFDB374E00 for IDATA(0x0000000000000003) slots
<1cfdb27e300> 		I-Slot: : t2[0x000001CFDB374E00] = 0x00007FF48F8D4770 <----
<1cfdb27e300> 		I-Slot: : t1[0x000001CFDB374E08] = 0x00007FFB531700D0
<1cfdb27e300> 		I-Slot: : t0[0x000001CFDB374E10] = 0x00007FF48FCA11F8
<1cfdb27e300> 	JIT-RegisterMap = UDATA(0x0000000000000000)
<1cfdb27e300> 	JIT-Frame-RegisterMap[0x000001CFDB374DB0] = UDATA(0x0000000000000001) (jit_rbx)
<1cfdb27e300> 	JIT-Frame-RegisterMap[0x000001CFDB374DB8] = UDATA(0x000001CFBCA2BE50) (jit_r9)

Except this I-slot looks like there is only pointer to this isolated objects group is GC continuation list.
I am still looking to possible problems in Balanced related to continuation list processing or handling of Weak Ref.

babsingh · 2023-11-22T14:09:26Z

@dmitripivkine For the I-slot, DDR doesn't find a root for me as well. All the DDR cmds to find the root throw the below exception because they expect an object address not an I-slot address.

> !anyrootpathfindall 0x000001CFDB374E00
Problem running command:
DDRInteractiveCommandException: object class is not valid (eyecatcher is not 0x99669966)
	at RootPathCommand.run(RootPathCommand.java:264)
        ...

<1cfdb27e300>       I-Slot: : t2[0x000001CFDB374E00] = 0x00007FF48F8D4770

> !j9object 0x00007FF48F8D4770
!J9Object 0x00007FF48F8D4770 {
	struct J9Class* clazz = !j9class 0x1CFDAF9CE00 // java/lang/VirtualThread

> !j9class 0x1CFDAF9CE00
J9Class at 0x1cfdaf9ce00 {
  Fields for J9Class:
	0x0: U64 eyecatcher = 0x0000000099669966 (2573637990) <--- GOOD

babsingh · 2023-11-22T14:14:29Z

DDR finds the root for the virtual thread address, but it also detects corruption on my end. With rootpathverbose, I see the below exception, which reports Operand stack underflow in StackMap. @dmitripivkine Is the corruption relevant to this issue or just another DDR bug?

> !anyrootpathfindall 0x00007FF48F8D4770
Nov 21, 2023 7:08:23 PM com.ibm.j9ddr.vm29.events.DefaultEventListener corruptData
WARNING: CorruptData encountered iterating o-slots. walkThread = 0x000001CFDB27E300
com.ibm.j9ddr.CorruptDataException: Operand stack underflow in StackMap
    at com.ibm.j9ddr.vm29.j9.stackmap.StackMap$J9MappingStack.POP(StackMap.java:184)
    at com.ibm.j9ddr.vm29.j9.stackmap.StackMap$StackMap_V1.POP(StackMap.java:692)
    at com.ibm.j9ddr.vm29.j9.stackmap.StackMap$StackMap_V1.mapStack(StackMap.java:573)
    at com.ibm.j9ddr.vm29.j9.stackmap.StackMap$StackMap_V1.j9stackmap_StackBitsForPC(StackMap.java:270)
    at com.ibm.j9ddr.vm29.j9.stackmap.StackMap.j9stackmap_StackBitsForPC(StackMap.java:106)
    at com.ibm.j9ddr.vm29.j9.stackwalker.StackWalker$StackWalker_29_V0.getStackMap(StackWalker.java:1053)
    at com.ibm.j9ddr.vm29.j9.stackwalker.StackWalker$StackWalker_29_V0.walkBytecodeFrameSlots(StackWalker.java:952)
    at com.ibm.j9ddr.vm29.j9.stackwalker.StackWalker$StackWalker_29_V0.walkBytecodeFrame(StackWalker.java:1036)
    at com.ibm.j9ddr.vm29.j9.stackwalker.StackWalker$StackWalker_29_V0.commonWalker(StackWalker.java:478)
    at com.ibm.j9ddr.vm29.j9.stackwalker.StackWalker$StackWalker_29_V0.walkStackFrames(StackWalker.java:196)
    at com.ibm.j9ddr.vm29.j9.stackwalker.StackWalker.walkStackFrames(StackWalker.java:99)
    at com.ibm.j9ddr.vm29.j9.GCVMThreadStackSlotIterator.scanSlots(GCVMThreadStackSlotIterator.java:59)
    at com.ibm.j9ddr.vm29.j9.RootScanner.scanThreads(RootScanner.java:701)
    at com.ibm.j9ddr.vm29.j9.RootScanner.scanAllSlots(RootScanner.java:362)
    ...

========================================
java/lang/ref/WeakReference@0x00007FF48F8D4900
  java/lang/VirtualThread@0x00007FF48F8D4770
Corruption detected walking live set

dmitripivkine · 2023-11-22T14:19:39Z

I think corruption is not relevant to the original problem, just another DDR stack walker issue. Also please note DDR root search commands treat Weak References as hard roots mistakenly.

pshipton · 2023-11-22T15:31:00Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0/100/

dmitripivkine · 2023-11-22T15:45:07Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0/100/

There is no stored artifacts unfortunately. And yes, this is Balanced again.

pshipton · 2024-01-15T17:28:56Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0/137
jdk_lang_0
java/lang/Thread/virtual/Collectable.java - timeout

pshipton · 2024-02-13T19:11:02Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_s390x_linux_OMR_testList_0/74
jdk_lang_0
java/lang/Thread/virtual/Collectable.java - timeout

dmitripivkine · 2024-02-20T18:56:00Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_s390x_linux_OMR_testList_0/74 jdk_lang_0 java/lang/Thread/virtual/Collectable.java - timeout

The problem is for Weak Reference !j9object 0x000000002E067720 it's referent Virtual Thread object !fj9object 0x2e067618 is stored in O-slot and can not be collected obviously:

<1cac200> JIT frame: bp = 0x0000000001CB1348, pc = 0x000003FF892AE474, unwindSP = 0x0000000001CB1308, cp = 0x0000000001C9D4D0, arg0EA = 0x0000000001CB1350, jitInfo = 0x000003FF82CF2DF8
<1cac200> 	Method: Collectable.waitUntilCleared(Ljava/lang/ref/WeakReference;)V !j9method 0x0000000001C9D6E8
<1cac200> 	Bytecode index = 7, inlineDepth = 0, PC offset = 0xFFFFFFFFFFF61D7A
<1cac200> 	stackMap=0x000003FF82CF2F39, slots=I16(0x0001) parmBaseOffset=I16(0x0008), parmSlots=U16(0x0001), localBaseOffset=I16(0xFFE8)
<1cac200> 	Described JIT args starting at 0x0000000001CB1350 for U16(0x0001) slots
<1cac200> 		O-Slot: : a0[0x0000000001CB1350] = 0x000000002E067720 <----- Weak Reference
<1cac200> 	Described JIT temps starting at 0x0000000001CB1330 for IDATA(0x0000000000000003) slots
<1cac200> 		O-Slot: : t2[0x0000000001CB1330] = 0x000000002E067618 <----- VT object is stored in O-slot
<1cac200> 		I-Slot: : t1[0x0000000001CB1338] = 0x000003FFA3C90950
<1cac200> 		I-Slot: : t0[0x0000000001CB1340] = 0x000000002E0DB948
<1cac200> 	JIT-RegisterMap = UDATA(0x0000000000000000)
<1cac200> 	JIT-Frame-RegisterMap[0x0000000001CB12B8] = UDATA(0x000000000E301FB8) (jit_r6)
<1cac200> 	JIT-Frame-RegisterMap[0x0000000001CB12C0] = UDATA(0x0000000001AE2600) (jit_r7)
<1cac200> 	JIT-Frame-RegisterMap[0x0000000001CB12C8] = UDATA(0x0000000001AE2600) (jit_r8)
<1cac200> 	JIT-Frame-RegisterMap[0x0000000001CB12D0] = UDATA(0x0000000000000000) (jit_r9)
<1cac200> 	JIT-Frame-RegisterMap[0x0000000001CB12D8] = UDATA(0x0000000000000000) (jit_r10)
<1cac200> 	JIT-Frame-RegisterMap[0x0000000001CB12E0] = UDATA(0x000000002E0DA1A8) (jit_r11)
<1cac200> 	JIT-Frame-RegisterMap[0x0000000001CB12E8] = UDATA(0x000000002E04A3D8) (jit_r12)

dmitripivkine · 2024-02-20T19:13:31Z

@hzongaro I guess this is manifestation of optimization can be disabled by -Xjit:enableAggressiveLiveness. This problem start happened often. I am not sure it is because of hotness of the method. So, passing this item to JIT for conclusion.

dmitripivkine · 2024-02-20T19:58:10Z

The mystery is for very first failure with Balanced GC Virtual Thread object is stored in I-slot:

<1cfdb27e300> JIT frame: bp = 0x000001CFDB374E18, pc = 0x00007FFB3EFD46AD, unwindSP = 0x000001CFDB374DE0, cp = 0x000001CFDB355CD0, arg0EA = 0x000001CFDB374E20, jitInfo = 0x000001CFDB7F7B68
<1cfdb27e300> 	Method: Collectable.waitUntilCleared(Ljava/lang/ref/WeakReference;)V !j9method 0x000001CFDB355EE8
<1cfdb27e300> 	Bytecode index = 13, inlineDepth = 0, PC offset = 0xFFFFFFFFFFFF898D
<1cfdb27e300> 	stackMap=0x000001CFDB7F7CB8, slots=I16(0x0001) parmBaseOffset=I16(0x0008), parmSlots=U16(0x0001), localBaseOffset=I16(0xFFE8)
<1cfdb27e300> 	Described JIT args starting at 0x000001CFDB374E20 for U16(0x0001) slots
<1cfdb27e300> 		O-Slot: : a0[0x000001CFDB374E20] = 0x00007FF48F8D4900 <--- Weak Reference object
<1cfdb27e300> 	Described JIT temps starting at 0x000001CFDB374E00 for IDATA(0x0000000000000003) slots
<1cfdb27e300> 		I-Slot: : t2[0x000001CFDB374E00] = 0x00007FF48F8D4770 <--- Virtual Thread object
<1cfdb27e300> 		I-Slot: : t1[0x000001CFDB374E08] = 0x00007FFB531700D0
<1cfdb27e300> 		I-Slot: : t0[0x000001CFDB374E10] = 0x00007FF48FCA11F8
<1cfdb27e300> 	JIT-RegisterMap = UDATA(0x0000000000000000)
<1cfdb27e300> 	JIT-Frame-RegisterMap[0x000001CFDB374DB0] = UDATA(0x0000000000000001) (jit_rbx)
<1cfdb27e300> 	JIT-Frame-RegisterMap[0x000001CFDB374DB8] = UDATA(0x000001CFBCA2BE50) (jit_r9)

I can not find another root to this object, but it survived thousands of GCs, so, discovered alive somehow. GC relies on JIT frame slot iterator . Is it possible this I-slot is reported to GC (by some internal JIT reason) and treated as a hard root?

pshipton · 2024-04-23T13:26:59Z

https://openj9-jenkins.osuosl.org/job/Test_openjdknext_j9_sanity.openjdk_ppc64le_linux_Nightly_testList_0/2

dmitripivkine · 2024-04-23T15:51:58Z

https://openj9-jenkins.osuosl.org/job/Test_openjdknext_j9_sanity.openjdk_ppc64le_linux_Nightly_testList_0/2

GC policy: Gencon
-Xjit:enableAggressiveLiveness is set.
Weak Reference !j9object 0x00000000FFDEBE90
Virtual thread object !j9object 0x00000000FFDEBD88 is stored in the O-slot, so it can not be collected

<29ca00> JIT frame: bp = 0x00000000002A1A68, pc = 0x000071B6060B5F70, unwindSP = 0x00000000002A1A30, cp = 0x0000000000285CD0, arg0EA = 0x00000000002A1A70, jitInfo = 0x000071B5E7D50F78
<29ca00> 	Method: Collectable.waitUntilCleared(Ljava/lang/ref/WeakReference;)V !j9method 0x0000000000285EE8
<29ca00> 	Bytecode index = 7, inlineDepth = 0, PC offset = 0xFFFFFFFFFFFED074
<29ca00> 	stackMap=0x000071B5E7D510B9, slots=I16(0x0001) parmBaseOffset=I16(0x0008), parmSlots=U16(0x0001), localBaseOffset=I16(0xFFE8)
<29ca00> 	Described JIT args starting at 0x00000000002A1A70 for U16(0x0001) slots
<29ca00> 		O-Slot: : a0[0x00000000002A1A70] = 0x00000000FFDEBE90
<29ca00> 	Described JIT temps starting at 0x00000000002A1A50 for IDATA(0x0000000000000003) slots
<29ca00> 		O-Slot: : t2[0x00000000002A1A50] = 0x00000000FFDEBD88 <---
<29ca00> 		I-Slot: : t1[0x00000000002A1A58] = 0x000071B625B61B10
<29ca00> 		I-Slot: : t0[0x00000000002A1A60] = 0x00000000FFE5FE70

pshipton · 2024-05-10T18:06:02Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0/211 - win2012-x86-1a
https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_aarch64_linux_OpenJDK21_testList_0/22 - ub20-aarch64-osu-1
https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_1/217/ - win2019x64-openj9-3
https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_linux_Release_testList_1/20 - ub18-x86-1a
https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0/235 - win2019x64-openj9-4a
https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_linux_Nightly_testList_1/165/ - ub16x64j96

JasonFengJ9 · 2024-05-14T21:57:55Z

JDK23 ppc64le_linux(ubu20le-rtp-rt1-1)

17:01:23  variation: -Xdump:system:none -Xdump:heap:none -Xdump:system:events=gpf+abort+traceassert+corruptcache -XX:-JITServerTechPreviewMessage Mode501
17:01:23  JVM_OPTIONS:  -Xdump:system:none -Xdump:heap:none -Xdump:system:events=gpf+abort+traceassert+corruptcache -XX:-JITServerTechPreviewMessage -Xjit -Xgcpolicy:balanced -Xnocompressedrefs -Xverbosegclog 

17:41:52  TEST: java/lang/Thread/virtual/Collectable.java

17:41:52  TEST RESULT: Error. Program `/home/jenkins/workspace/Test_openjdknext_j9_sanity.openjdk_ppc64le_linux_Personal_testList_0/jdkbinary/j2sdk-image/bin/java' timed out (timeout set to 960000ms, elapsed time including timeout handling was 965154ms).
17:41:52  --------------------------------------------------
17:41:52  Test results: passed: 930; error: 1
17:42:16  Report written to /home/jenkins/workspace/Test_openjdknext_j9_sanity.openjdk_ppc64le_linux_Personal_testList_0/aqa-tests/TKG/output_17152869117629/jdk_lang_j9_0/report/html/report.html
17:42:16  Results written to /home/jenkins/workspace/Test_openjdknext_j9_sanity.openjdk_ppc64le_linux_Personal_testList_0/aqa-tests/TKG/output_17152869117629/jdk_lang_j9_0/work
17:42:16  Error: Some tests failed or other problems occurred.
17:42:16  -----------------------------------
17:42:16  jdk_lang_j9_0_FAILED

dmitripivkine · 2024-05-15T14:24:59Z

This item is on JIT side. However as I understand there is no luck to reproduce it reliable. Moving it to the next milestone.

pshipton · 2024-08-12T21:52:46Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_aarch64_linux_OMR_testList_1/153

pshipton · 2024-08-27T19:04:49Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_aarch64_linux_OpenJDK21_testList_1/28
https://openj9-jenkins.osuosl.org/job/Test_openjdk23_j9_sanity.openjdk_x86-64_linux_Nightly_testList_1/41

JasonFengJ9 · 2024-09-06T17:52:41Z

JDK21 x86-64_linux 0.46.1(ubu22x86-svl-rt11-1)

[2024-09-05T15:40:10.517Z] variation: -Xdump:system:none -Xdump:heap:none -Xdump:system:events=gpf+abort+traceassert+corruptcache -XX:-JITServerTechPreviewMessage Mode150
[2024-09-05T15:40:10.517Z] JVM_OPTIONS:  -Xdump:system:none -Xdump:heap:none -Xdump:system:events=gpf+abort+traceassert+corruptcache -XX:-JITServerTechPreviewMessage -XX:+UseCompressedOops -Xverbosegclog 

[2024-09-05T16:15:43.080Z] TEST: java/lang/Thread/virtual/Collectable.java

[2024-09-05T16:15:43.082Z] TEST RESULT: Error. Program `/home/jenkins/workspace/Test_openjdk21_j9_sanity.openjdk_x86-64_linux_testList_1/jdkbinary/j2sdk-image/bin/java' timed out (timeout set to 960000ms, elapsed time including timeout handling was 966700ms).
[2024-09-05T16:15:43.082Z] --------------------------------------------------
[2024-09-05T16:15:43.082Z] Test results: passed: 937; error: 1
[2024-09-05T16:16:16.527Z] Report written to /home/jenkins/workspace/Test_openjdk21_j9_sanity.openjdk_x86-64_linux_testList_1/aqa-tests/TKG/output_17255508092237/jdk_lang_0/report/html/report.html
[2024-09-05T16:16:16.527Z] Results written to /home/jenkins/workspace/Test_openjdk21_j9_sanity.openjdk_x86-64_linux_testList_1/aqa-tests/TKG/output_17255508092237/jdk_lang_0/work
[2024-09-05T16:16:16.527Z] Error: Some tests failed or other problems occurred.
[2024-09-05T16:16:16.527Z] -----------------------------------
[2024-09-05T16:16:16.527Z] jdk_lang_0_FAILED

pshipton · 2024-10-02T13:17:00Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_s390x_linux_Nightly_testList_0/321/

JasonFengJ9 · 2024-10-11T20:38:13Z

openjdk23_j9_sanity.openjdk_ppc64le_linux(ubu20le-rtp-rt5-1)

[2024-10-10T01:44:55.366Z] variation: -Xdump:system:none -Xdump:heap:none -Xdump:system:events=gpf+abort+traceassert+corruptcache -XX:-JITServerTechPreviewMessage Mode650
[2024-10-10T01:44:55.366Z] JVM_OPTIONS:  -Xdump:system:none -Xdump:heap:none -Xdump:system:events=gpf+abort+traceassert+corruptcache -XX:-JITServerTechPreviewMessage -XX:-UseCompressedOops -Xverbosegclog 

[2024-10-10T02:22:53.320Z] TEST: java/lang/Thread/virtual/Collectable.java

[2024-10-10T02:22:53.331Z] TEST RESULT: Error. Program `/home/jenkins/workspace/Test_openjdk23_j9_sanity.openjdk_ppc64le_linux_testList_1/jdkbinary/j2sdk-image/bin/java' timed out (timeout set to 960000ms, elapsed time including timeout handling was 965016ms).
[2024-10-10T02:22:53.331Z] --------------------------------------------------
[2024-10-10T02:22:53.331Z] Test results: passed: 932; error: 1
[2024-10-10T02:23:20.868Z] Report written to /home/jenkins/workspace/Test_openjdk23_j9_sanity.openjdk_ppc64le_linux_testList_1/aqa-tests/TKG/output_17285246938558/jdk_lang_1/report/html/report.html
[2024-10-10T02:23:20.868Z] Results written to /home/jenkins/workspace/Test_openjdk23_j9_sanity.openjdk_ppc64le_linux_testList_1/aqa-tests/TKG/output_17285246938558/jdk_lang_1/work
[2024-10-10T02:23:20.868Z] Error: Some tests failed or other problems occurred.
[2024-10-10T02:23:20.868Z] -----------------------------------
[2024-10-10T02:23:20.868Z] jdk_lang_1_FAILED

pshipton · 2024-10-15T14:07:17Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_aarch64_linux_Nightly_testList_0/325/

pshipton · 2024-10-23T21:18:31Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_windows_Nightly_testList_0/259

pshipton · 2024-11-07T16:29:48Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_linux_OpenJDK21_testList_0/28

pshipton · 2024-11-14T16:30:31Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_aarch64_linux_Nightly_testList_0/347
https://openj9-jenkins.osuosl.org/job/Test_openjdk23_j9_sanity.openjdk_x86-64_linux_Nightly_testList_1/94

pshipton · 2024-12-04T14:58:22Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_aarch64_linux_OMR_testList_0/191
https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_aarch64_linux_Nightly_testList_1/362/
https://openj9-jenkins.osuosl.org/job/Test_openjdk23_j9_sanity.openjdk_ppc64le_linux_Release_testList_1/11 - 0.49

pshipton · 2025-01-13T17:21:12Z

https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_linux_Nightly_testList_1/292
https://openj9-jenkins.osuosl.org/job/Test_openjdk21_j9_sanity.openjdk_x86-64_linux_Nightly_testList_1/313/

pshipton added test failure jdk21 labels Nov 16, 2023

pshipton added this to the Java 21 (0.42) milestone Nov 16, 2023

pshipton changed the title ~~OpenJDK java/lang/Thread/virtual/Collectable.java~~ OpenJDK java/lang/Thread/virtual/Collectable.java timeout Nov 16, 2023

babsingh added comp:gc comp:jit labels Nov 17, 2023

babsingh removed comp:gc comp:jit labels Nov 17, 2023

babsingh added the comp:gc label Nov 20, 2023

babsingh modified the milestones: Java 21 (0.42), Release 0.44 (Java 8, 11, 17, 21) Apr refresh Nov 20, 2023

dmitripivkine added comp:jit and removed comp:gc labels Feb 20, 2024

dmitripivkine added the comp:gc label Feb 20, 2024

dmitripivkine modified the milestones: Release 0.46 (Java 8, 11, 17, 21, 22) July refresh, Release 0.48 (Java 8, 11, 17, 21, 23) October refresh May 15, 2024

jdmpapin mentioned this issue Jul 11, 2024

JIT: Detect in-place redefinition based on J9JITRedefinedClass #19824

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dmitripivkine removed the comp:gc label Aug 27, 2024

hzongaro mentioned this issue Aug 27, 2024

Adjust bound for out-of-line call to StringUTF16.toBytes #20058

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hzongaro modified the milestones: Release 0.48 (Java 8, 11, 17, 21, 23) October refresh, Release 0.49 (Java 8, 11, 17, 21, 23) January refresh Sep 18, 2024

babsingh mentioned this issue Sep 27, 2024

Add Xgc options for suballocator heap size and quick allocation #19872

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r30shah mentioned this issue Oct 25, 2024

Unhide compressed refs logic from Unsafe CAS codegen #20400

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jdmpapin mentioned this issue Nov 13, 2024

Recognize unsafe unaligned getters/setters #19668

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luke-li-2003 mentioned this issue Jan 24, 2025

Internal JITServer test failures #14538

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jdmpapin mentioned this issue Feb 11, 2025

Change return type of getStringUTF8Length #21005

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OpenJDK java/lang/Thread/virtual/Collectable.java timeout #18463

OpenJDK java/lang/Thread/virtual/Collectable.java timeout #18463

pshipton commented Nov 16, 2023 •

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babsingh commented Nov 17, 2023 •

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babsingh commented Nov 17, 2023 •

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dmitripivkine commented Nov 17, 2023

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OpenJDK java/lang/Thread/virtual/Collectable.java timeout #18463

OpenJDK java/lang/Thread/virtual/Collectable.java timeout #18463

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