JDK-8276539 : Some SA tests fails with ZGC
  • Type: Bug
  • Component: hotspot
  • Sub-Component: svc-agent
  • Affected Version: 18
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2021-11-03
  • Updated: 2024-06-18
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Resolved: Release in which this issue/RFE has been resolved.
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Other
tbdUnresolved
Related Reports
Relates :  
JDK-8248912 - ZGC: serviceability/sa/TestJhsdbJstackMixed.java timed out
Relates :  
JDK-8268283 - ZGC: serviceability/sa/TestJmapCore.java failed on linux-aarch64 after JDK-8266957
Relates :  
JDK-8307393 - The SA lacks support for Generational ZGC
Relates :  
JDK-8270202 - ZGC: serviceability/sa/TestJmapCore.java fails with UnmappedAddressException
Relates :  
JDK-8220624 - SA: Out of sync with ZGC's internal data structures
Relates :  
JDK-8268636 - ZGC: serviceability/sa/TestJmapCoreMetaspace.java fails with "ClassCastException: class sun.jvm.hotspot.oops.TypeArray cannot be cast to class sun.jvm.hotspot.oops.Instance"
Sub Tasks
JDK-8276615 :  
Update CR number of some tests in ProblemList-zgc.txt - Resolved
Description
We worked to improve SA for ZGC in JDK-8220624 and its subtasks, however some tests still fails with ZGC.

* resourcehogs/serviceability/sa/TestHeapDumpForLargeArray.java
* serviceability/sa/CDSJMapClstats.java
* serviceability/sa/ClhsdbJhisto.java
* serviceability/sa/ClhsdbJstackWithConcurrentLock.java fails with:

Please see attached jtr files for details.
Comments
serviceability/sa/ClhsdbJstackWithConcurrentLock.java fails with: java.lang.RuntimeException: Test ERROR java.lang.RuntimeException: Token ', (a java/util/concurrent/locks/ReentrantLock$NonfairSync)' not found in jstack output This is because the jstack code that searches the heap for AbstractOwnableSynchronizer instances is failing to find them, so the following is missing from the jstack output: Locked ownable synchronizers: - <0x00000000ffd3a620>, (a java/util/concurrent/locks/ReentrantLock$NonfairSync)
18-01-2024
After changes for JDK-8307408 were put in place, causing jshell to be launched with -XX:+UseZGC, I started seeing failures in the following tests that are similar to the TestHeapDumpForLargeArray.java failure mentioned in the attached .jtr file: sun/tools/jhsdb/JShellHeapDumpTest.java sun/tools/jhsdb/HeapDumpTestWithActiveProcess.java There are quite a few failure modes. A few sample stack traces are below: sun.jvm.hotspot.oops.UnknownOopException: 0x00001000050404e8 at jdk.hotspot.agent/sun.jvm.hotspot.oops.ObjectHeap.newOop(ObjectHeap.java:193) at jdk.hotspot.agent/sun.jvm.hotspot.oops.VMOopHandle.resolve(VMOopHandle.java:61) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Klass.getJavaMirror(Klass.java:114) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter$5.visit(HeapHprofBinWriter.java:1243) at jdk.hotspot.agent/sun.jvm.hotspot.classfile.ClassLoaderData.classesDo(ClassLoaderData.java:107) at jdk.hotspot.agent/sun.jvm.hotspot.classfile.ClassLoaderDataGraph.classesDo(ClassLoaderDataGraph.java:84) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter.writeClasses(HeapHprofBinWriter.java:1240) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter.write(HeapHprofBinWriter.java:458) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.writeHeapHprofBin(JMap.java:216) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.run(JMap.java:103) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:278) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.start(Tool.java:241) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.execute(Tool.java:134) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.main(JMap.java:202) at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runJMAP(SALauncher.java:340) at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:500) sun.jvm.hotspot.types.WrongTypeException: No suitable match for type of address 0x0000000800927e18 at jdk.hotspot.agent/sun.jvm.hotspot.runtime.InstanceConstructor.newWrongTypeException(InstanceConstructor.java:62) at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VirtualBaseConstructor.instantiateWrapperFor(VirtualBaseConstructor.java:111) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Metadata.instantiateWrapperFor(Metadata.java:77) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Oop.getKlassForOopHandle(Oop.java:210) at jdk.hotspot.agent/sun.jvm.hotspot.oops.ObjectHeap.newOop(ObjectHeap.java:181) at jdk.hotspot.agent/sun.jvm.hotspot.oops.VMOopHandle.resolve(VMOopHandle.java:61) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Klass.getJavaMirror(Klass.java:114) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter$5.visit(HeapHprofBinWriter.java:1243) at jdk.hotspot.agent/sun.jvm.hotspot.classfile.ClassLoaderData.classesDo(ClassLoaderData.java:107) at jdk.hotspot.agent/sun.jvm.hotspot.classfile.ClassLoaderDataGraph.classesDo(ClassLoaderDataGraph.java:84) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter.writeClasses(HeapHprofBinWriter.java:1240) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter.write(HeapHprofBinWriter.java:458) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.writeHeapHprofBin(JMap.java:216) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.run(JMap.java:103) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:278) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.start(Tool.java:241) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.execute(Tool.java:134) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.main(JMap.java:202) at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runJMAP(SALauncher.java:340) at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:500) sun.jvm.hotspot.debugger.UnmappedAddressException: 80b800640 at jdk.hotspot.agent/sun.jvm.hotspot.debugger.PageCache.checkPage(PageCache.java:208) at jdk.hotspot.agent/sun.jvm.hotspot.debugger.PageCache.getLong(PageCache.java:100) at jdk.hotspot.agent/sun.jvm.hotspot.debugger.DebuggerBase.readCInteger(DebuggerBase.java:356) at jdk.hotspot.agent/sun.jvm.hotspot.debugger.DebuggerBase.readAddressValue(DebuggerBase.java:382) at jdk.hotspot.agent/sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.readAddress(WindbgDebuggerLocal.java:273) at jdk.hotspot.agent/sun.jvm.hotspot.debugger.windbg.WindbgAddress.getAddressAt(WindbgAddress.java:71) at jdk.hotspot.agent/sun.jvm.hotspot.types.basic.BasicTypeDataBase.findDynamicTypeForAddress(BasicTypeDataBase.java:238) at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VirtualBaseConstructor.instantiateWrapperFor(VirtualBaseConstructor.java:104) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Metadata.instantiateWrapperFor(Metadata.java:77) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Oop.getKlassForOopHandle(Oop.java:210) at jdk.hotspot.agent/sun.jvm.hotspot.oops.ObjectHeap.newOop(ObjectHeap.java:181) at jdk.hotspot.agent/sun.jvm.hotspot.oops.VMOopHandle.resolve(VMOopHandle.java:61) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Klass.getJavaMirror(Klass.java:114) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter$5.visit(HeapHprofBinWriter.java:1243) at jdk.hotspot.agent/sun.jvm.hotspot.classfile.ClassLoaderData.classesDo(ClassLoaderData.java:107) at jdk.hotspot.agent/sun.jvm.hotspot.classfile.ClassLoaderDataGraph.classesDo(ClassLoaderDataGraph.java:84) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter.writeClasses(HeapHprofBinWriter.java:1240) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter.write(HeapHprofBinWriter.java:458) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.writeHeapHprofBin(JMap.java:216) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.run(JMap.java:103) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:278) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.start(Tool.java:241) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.execute(Tool.java:134) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.main(JMap.java:202) at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runJMAP(SALauncher.java:340) at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:500) sun.jvm.hotspot.debugger.UnalignedAddressException: Trying to read at address: 0x000000082e6b646a with alignment: 8 at jdk.hotspot.agent/sun.jvm.hotspot.debugger.DebuggerUtilities.checkAlignment(DebuggerUtilities.java:68) at jdk.hotspot.agent/sun.jvm.hotspot.debugger.DebuggerBase.readCInteger(DebuggerBase.java:349) at jdk.hotspot.agent/sun.jvm.hotspot.debugger.DebuggerBase.readAddressValue(DebuggerBase.java:382) at jdk.hotspot.agent/sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.readAddress(WindbgDebuggerLocal.java:273) at jdk.hotspot.agent/sun.jvm.hotspot.debugger.windbg.WindbgAddress.getAddressAt(WindbgAddress.java:71) at jdk.hotspot.agent/sun.jvm.hotspot.types.basic.BasicTypeDataBase.findDynamicTypeForAddress(BasicTypeDataBase.java:238) at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VirtualBaseConstructor.instantiateWrapperFor(VirtualBaseConstructor.java:104) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Metadata.instantiateWrapperFor(Metadata.java:77) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Oop.getKlassForOopHandle(Oop.java:210) at jdk.hotspot.agent/sun.jvm.hotspot.oops.ObjectHeap.newOop(ObjectHeap.java:181) at jdk.hotspot.agent/sun.jvm.hotspot.oops.VMOopHandle.resolve(VMOopHandle.java:61) at jdk.hotspot.agent/sun.jvm.hotspot.oops.Klass.getJavaMirror(Klass.java:114) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter$5.visit(HeapHprofBinWriter.java:1243) at jdk.hotspot.agent/sun.jvm.hotspot.classfile.ClassLoaderData.classesDo(ClassLoaderData.java:107) at jdk.hotspot.agent/sun.jvm.hotspot.classfile.ClassLoaderDataGraph.classesDo(ClassLoaderDataGraph.java:84) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter.writeClasses(HeapHprofBinWriter.java:1240) at jdk.hotspot.agent/sun.jvm.hotspot.utilities.HeapHprofBinWriter.write(HeapHprofBinWriter.java:458) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.writeHeapHprofBin(JMap.java:216) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.run(JMap.java:103) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:278) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.start(Tool.java:241) at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.execute(Tool.java:134) at jdk.hotspot.agent/sun.jvm.hotspot.tools.JMap.main(JMap.java:202) at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runJMAP(SALauncher.java:340) at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:500)
06-05-2023