The following test fails in the JDK17 CI with ZGC:

serviceability/sa/sadebugd/DisableRegistryTest.java

Here's a snippet from the log file:

#section:main
----------messages:(4/169)----------
command: main DisableRegistryTest
reason: User specified action: run main/othervm DisableRegistryTest
Mode: othervm [/othervm specified]
elapsed time (seconds): 18.537
----------configuration:(0/0)----------
----------System.out:(18/3081)----------
Command line: ['/opt/mach5/mesos/work_dir/jib-master/install/jdk-17+20-1639/linux-x64-debug.jdk/jdk-17/fastdebug/bin/java' '-XX:MaxRAMPercentage=4' '-Djava.io.tmpdir=/opt/mach5/mesos/work_dir/slaves/3c846bae-ce30-4a97-93ee-9fef4497ccb6-S78971/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/5c72f367-bad9-4ffa-897b-7e6e2b389d73/runs/b5112ed9-2083-4ef9-8a50-5b8c66a1b000/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_serviceability/tmp' '-XX:+CreateCoredumpOnCrash' '-XX:+UseZGC' '-cp' '/opt/mach5/mesos/work_dir/slaves/3c846bae-ce30-4a97-93ee-9fef4497ccb6-S78971/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/5c72f367-bad9-4ffa-897b-7e6e2b389d73/runs/b5112ed9-2083-4ef9-8a50-5b8c66a1b000/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_serviceability/classes/2/serviceability/sa/sadebugd/DisableRegistryTest.d:/opt/mach5/mesos/work_dir/slaves/3c846bae-ce30-4a97-93ee-9fef4497ccb6-S78971/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/5c72f367-bad9-4ffa-897b-7e6e2b389d73/runs/b5112ed9-2083-4ef9-8a50-5b8c66a1b000/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_serviceability/classes/2/test/lib' 'jdk.test.lib.apps.LingeredApp' '4a4c4dbd-406e-41b6-890c-6b06dec25ca2.lck']
Command line: ['/opt/mach5/mesos/work_dir/jib-master/install/jdk-17+20-1639/linux-x64-debug.jdk/jdk-17/fastdebug/bin/java' '-XX:MaxRAMPercentage=4' '-Djava.io.tmpdir=/opt/mach5/mesos/work_dir/slaves/3c846bae-ce30-4a97-93ee-9fef4497ccb6-S78971/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/5c72f367-bad9-4ffa-897b-7e6e2b389d73/runs/b5112ed9-2083-4ef9-8a50-5b8c66a1b000/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_serviceability/tmp' '-XX:+CreateCoredumpOnCrash' '-XX:+UseZGC' '-cp' '/opt/mach5/mesos/work_dir/slaves/3c846bae-ce30-4a97-93ee-9fef4497ccb6-S78971/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/5c72f367-bad9-4ffa-897b-7e6e2b389d73/runs/b5112ed9-2083-4ef9-8a50-5b8c66a1b000/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_serviceability/classes/2/serviceability/sa/sadebugd/DisableRegistryTest.d:/opt/mach5/mesos/work_dir/slaves/3c846bae-ce30-4a97-93ee-9fef4497ccb6-S78971/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/5c72f367-bad9-4ffa-897b-7e6e2b389d73/runs/b5112ed9-2083-4ef9-8a50-5b8c66a1b000/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_serviceability/classes/2/test/lib' 'jdk.test.lib.apps.LingeredApp' '347019ed-ce88-4ccb-9a8b-e3b5cd793e9d.lck']
[2021-04-22T18:40:48.248224900Z] Gathering output for process 12474
Attaching to remote server localhost:10000, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 17-ea+20-LTS-1639
Java System Properties:


[2021-04-22T18:40:49.664191385Z] Waiting for completion for process 12474
[2021-04-22T18:40:49.664441467Z] Waiting for completion finished for process 12474
 LingeredApp stdout: [];
 LingeredApp stderr: []
 LingeredApp exitValue = 0
 LingeredApp stdout: [];
 LingeredApp stderr: []
 LingeredApp exitValue = 0
----------System.err:(89/6378)----------
java.lang.ExceptionInInitializerError
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZAddress.is_weak_bad(ZAddress.java:43)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZAddress.is_weak_good_or_null(ZAddress.java:51)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZBarrier.is_weak_good_or_null_fast_path(ZBarrier.java:32)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZBarrier.weak_barrier(ZBarrier.java:76)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZCollectedHeap.oop_load_barrier(ZCollectedHeap.java:88)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZCollectedHeap.oop_load_in_native(ZCollectedHeap.java:110)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.VMOopHandle.resolve(VMOopHandle.java:60)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.Klass.getJavaMirror(Klass.java:114)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.InstanceKlass.iterateStaticFields(InstanceKlass.java:651)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VM.readSystemProperties(VM.java:1092)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VM.getSystemProperties(VM.java:1085)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.SysPropsDumper.run(SysPropsDumper.java:44)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JInfo$1.run(JInfo.java:80)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JInfo.run(JInfo.java:95)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:278)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.start(Tool.java:241)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.execute(Tool.java:134)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JInfo.runWithArgs(JInfo.java:139)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JInfo.main(JInfo.java:144)
at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runJINFO(SALauncher.java:352)
at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:499)
Caused by: java.lang.RuntimeException: No long constant named "ZAddressSpaceStart" present in type database
at jdk.hotspot.agent/sun.jvm.hotspot.types.basic.BasicTypeDataBase.lookupLongConstant(BasicTypeDataBase.java:113)
at jdk.hotspot.agent/sun.jvm.hotspot.types.basic.BasicTypeDataBase.lookupLongConstant(BasicTypeDataBase.java:106)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZGlobals.initialize(ZGlobals.java:93)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZGlobals.lambda$static$0(ZGlobals.java:65)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VM.registerVMInitializedObserver(VM.java:578)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZGlobals.<clinit>(ZGlobals.java:65)
... 21 more

 stdout: [Attaching to remote server localhost:10000, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 17-ea+20-LTS-1639
Java System Properties:

];
 stderr: [java.lang.ExceptionInInitializerError
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZAddress.is_weak_bad(ZAddress.java:43)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZAddress.is_weak_good_or_null(ZAddress.java:51)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZBarrier.is_weak_good_or_null_fast_path(ZBarrier.java:32)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZBarrier.weak_barrier(ZBarrier.java:76)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZCollectedHeap.oop_load_barrier(ZCollectedHeap.java:88)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZCollectedHeap.oop_load_in_native(ZCollectedHeap.java:110)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.VMOopHandle.resolve(VMOopHandle.java:60)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.Klass.getJavaMirror(Klass.java:114)
at jdk.hotspot.agent/sun.jvm.hotspot.oops.InstanceKlass.iterateStaticFields(InstanceKlass.java:651)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VM.readSystemProperties(VM.java:1092)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VM.getSystemProperties(VM.java:1085)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.SysPropsDumper.run(SysPropsDumper.java:44)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JInfo$1.run(JInfo.java:80)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JInfo.run(JInfo.java:95)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:278)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.start(Tool.java:241)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.Tool.execute(Tool.java:134)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JInfo.runWithArgs(JInfo.java:139)
at jdk.hotspot.agent/sun.jvm.hotspot.tools.JInfo.main(JInfo.java:144)
at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runJINFO(SALauncher.java:352)
at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:499)
Caused by: java.lang.RuntimeException: No long constant named "ZAddressSpaceStart" present in type database
at jdk.hotspot.agent/sun.jvm.hotspot.types.basic.BasicTypeDataBase.lookupLongConstant(BasicTypeDataBase.java:113)
at jdk.hotspot.agent/sun.jvm.hotspot.types.basic.BasicTypeDataBase.lookupLongConstant(BasicTypeDataBase.java:106)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZGlobals.initialize(ZGlobals.java:93)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZGlobals.lambda$static$0(ZGlobals.java:65)
at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VM.registerVMInitializedObserver(VM.java:578)
at jdk.hotspot.agent/sun.jvm.hotspot.gc.z.ZGlobals.<clinit>(ZGlobals.java:65)
... 21 more
]
 exitValue = 1

java.lang.RuntimeException: Test ERROR java.lang.RuntimeException: stderr was not empty
at DisableRegistryTest.main(DisableRegistryTest.java:101)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:831)
Caused by: java.lang.RuntimeException: stderr was not empty
at jdk.test.lib.process.OutputAnalyzer.stderrShouldBeEmptyIgnoreDeprecatedWarnings(OutputAnalyzer.java:162)
at DisableRegistryTest.test(DisableRegistryTest.java:73)
at DisableRegistryTest.main(DisableRegistryTest.java:96)
... 6 more

JavaTest Message: Test threw exception: java.lang.RuntimeException: Test ERROR java.lang.RuntimeException: stderr was not empty
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Test ERROR java.lang.RuntimeException: stderr was not empty
----------rerun:(36/7165)*----------


This failure first occurs in jdk-17+20-1639-tier3 which includes:

JDK-8263636 Add --disable-registry option to jhsdb debugd

so it's likely that JDK-8263636 is the cause of these failures.