jdk26 TestJlmRemote tests gpf in initializeRequiredClasses

[pshipton]

TestJlmRemote tests gpf, perhaps related to one of the command line options

2CIUSERARG               -javaagent:/home/jenkins/workspace/Grinder/jvmtest/system/STF/stf.core/scripts/../../stf.load/bin/stf.load.jar
2CIUSERARG               -Dcom.sun.management.jmxremote.port=1234
2CIUSERARG               -Dcom.sun.management.jmxremote.authenticate=false
2CIUSERARG               -Dcom.sun.management.jmxremote.ssl=false

TestJlmRemoteClassNoAuth_1

Unhandled exception
Type=Segmentation error vmState=0x00000000
J9Generic_Signal_Number=00000018 Signal_Number=0000000b Error_Value=00000000 Signal_Code=00000080
Handler1=00007F3E3E6406F0 Handler2=00007F3E3ECBA450 InaccessibleAddress=0000000000000000 Sending_Process=00000000
RDI=00007F3E381558D0 RSI=00007F3E381681D0 RAX=00007F3E381558D0 RBX=00007F3E3E85E0C0
RCX=0000000000000000 RDX=00007F3E3D3E15F7 R8=0000000000000000 R9=0000000000000000
R10=00007F3E3816C700 R11=0000000000000000 R12=00007F3E3802A530 R13=00007F3E3D3E15F7
R14=000000000000000E R15=0000000000000000
RIP=00007F3E3D391754 GS=0000 FS=0000 RSP=00007F3E3F15F160
EFlags=0000000000010202 CS=0033 RBP=00007F3E3816C700 ERR=0000000000000000
TRAPNO=000000000000000D OLDMASK=0000000000000000 CR2=0000000000000000
xmm0=0000000000000000 (f: 0.000000, d: 0.000000e+00)
xmm1=43e0000000000000 (f: 0.000000, d: 9.223372e+18)
xmm2=412e848000000000 (f: 0.000000, d: 1.000000e+06)
xmm3=0000000000000000 (f: 0.000000, d: 0.000000e+00)
xmm4=0000000000000000 (f: 0.000000, d: 0.000000e+00)
xmm5=0000003000000020 (f: 32.000000, d: 1.018558e-312)
xmm6=00007f3dd94f3348 (f: 3645846272.000000, d: 6.912157e-310)
xmm7=0000000000000042 (f: 66.000000, d: 3.260833e-322)
xmm8=00007f3e3828aa50 (f: 942189120.000000, d: 6.912236e-310)
xmm9=0000000000000000 (f: 0.000000, d: 0.000000e+00)
xmm10=3f3f3f3f3f3f3f3f (f: 1061109568.000000, d: 4.767923e-04)
xmm11=9999999999999999 (f: 2576980480.000000, d: -2.353437e-185)
xmm12=2020202020202020 (f: 538976256.000000, d: 6.013470e-154)
xmm13=0000080200200003 (f: 2097155.000000, d: 4.350092e-311)
xmm14=0000000008001800 (f: 134223872.000000, d: 6.631540e-316)
xmm15=0000000000000000 (f: 0.000000, d: 0.000000e+00)
Module=/home/jenkins/workspace/Grinder/jdkbinary/j2sdk-image/lib/default/libjclse29.so
Module_base_address=00007F3E3D374000
Target=2_90_20251030_1029 (Linux 5.14.0-617.el9.x86_64)
CPU=amd64 (8 logical CPUs) (0x3d73c9000 RAM)
----------- Stack Backtrace -----------
initializeRequiredClasses+0x8b4 (0x00007F3E3D391754 [libjclse29.so+0x1d754])
standardInit+0x65b (0x00007F3E3D3B275B [libjclse29.so+0x3e75b])
scarInit+0xa2 (0x00007F3E3D3BD812 [libjclse29.so+0x49812])
J9VMDllMain+0x195 (0x00007F3E3D3BDFC5 [libjclse29.so+0x49fc5])
runJ9VMDllMain+0xc9 (0x00007F3E3E654769 [libj9vm29.so+0x54769])
pool_do+0x75 (0x00007F3E3E7A4175 [libj9vm29.so+0x1a4175])
runInitializationStage+0x8e (0x00007F3E3E656DFE [libj9vm29.so+0x56dfe])
protectedInitializeJavaVM+0x3224 (0x00007F3E3E661574 [libj9vm29.so+0x61574])
omrsig_protect+0x239 (0x00007F3E3ECBB1D9 [libj9prt29.so+0x2b1d9])
initializeJavaVM+0x4a6 (0x00007F3E3E658846 [libj9vm29.so+0x58846])
J9_CreateJavaVM+0x72 (0x00007F3E3E64BDF2 [libj9vm29.so+0x4bdf2])

TestIBMJlmRemoteClassAuth_0
TestIBMJlmRemoteClassNoAuth_0
TestIBMJlmRemoteMemoryAuth_0
TestIBMJlmRemoteMemoryNoAuth_0
TestJlmRemoteClassAuth_1
TestJlmRemoteClassNoAuth_1
TestJlmRemoteMemoryAuth_1
TestJlmRemoteMemoryNoAuth_1
TestJlmRemoteNotifierProxyAuth_1
TestJlmRemoteThreadAuth_1
TestJlmRemoteThreadNoAuth_1

[pshipton]

Guessing these are related

https://openj9-jenkins.osuosl.org/job/Test_openjdknext_j9_extended.functional_aarch64_mac_Personal_testList_0/4/testOSMXBeanRemote_0

14:17:56  [TestOperatingSystemMXBean] [INFO] Starting Remote Server!
14:17:56  [TestOperatingSystemMXBean] [INFO] /Users/jenkins/workspace/Test_openjdknext_j9_extended.functional_aarch64_mac_Personal_testList_0/jdkbinary/j2sdk-image/bin/java -classpath /Users/jenkins/workspace/Test_openjdknext_j9_extended.functional_aarch64_mac_Personal_testList_0/aqa-tests/TKG/../../jvmtest/TestConfig/resources:/Users/jenkins/workspace/Test_openjdknext_j9_extended.functional_aarch64_mac_Personal_testList_0/../../externalDependency/lib/testng.jar:/Users/jenkins/workspace/Test_openjdknext_j9_extended.functional_aarch64_mac_Personal_testList_0/../../externalDependency/lib/jcommander.jar:/Users/jenkins/workspace/Test_openjdknext_j9_extended.functional_aarch64_mac_Personal_testList_0/aqa-tests/TKG/../../jvmtest/functional/JLM_Tests/jlm_tests.jar  -Xint -Xgcpolicy:optthruput -Xnocompressedrefs -Xcheck:jni:all,pedantic,abortonerror  -Dcom.sun.management.jmxremote.port=9999 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false org.openj9.test.management.RemoteServer 
14:18:10  [TestOperatingSystemMXBean] [WARN] Connection request failed: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
14:18:10  	java.net.ConnectException: Connection refused]

testJCMMXBeanRemote_0 - timeout

https://openj9-jenkins.osuosl.org/job/Test_openjdknext_j9_extended.functional_aarch64_mac_Personal_testList_1/4
testOSMXBeanRemote_1
testJCMMXBeanRemote_1 - timeout

[pshipton]

The crash is easily re-creatable running java -Dcom.sun.management, which adds the vm extendedRuntimeFlags2 J9_EXTENDED_RUNTIME2_LOAD_AGENT_MODULE. This flag is used in jclcinit.c initializeRequiredClasses().

[pshipton]

Seems related to #22533 aka f4319cdd6