The following test failed in the JDK17 CI:

gc/g1/TestGreyReclaimedHumongousObjects.java

The test task's JVM args are:
-XX:+CreateCoredumpOnCrash -XX:+UseG1GC -XX:-UseCompressedOops

Here's a snippet from the log file:

----------System.out:(22/1539)----------
Max memory= 134217728 bytes
Objects size= 1048576 bytes
Seconds to run=90
Starting 12 threads
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f815d2faf05, pid=4418, tid=4480
#
# JRE version: Java(TM) SE Runtime Environment (17.0+23) (build 17-ea+23-LTS-1973)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (17-ea+23-LTS-1973, mixed mode, sharing, tiered, compressed class ptrs, g1 gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0x696f05] void OopOopIterateDispatch<G1CMOopClosure>::Table::oop_oop_iterate<ObjArrayKlass, oopDesc*>(G1CMOopClosure*, oopDesc*, Klass*)+0xc5
#
# Core dump will be written. Default location: Core dumps may be processed with "/opt/core.sh %p" (or dumping to /opt/mach5/mesos/work_dir/slaves/3c846bae-ce30-4a97-93ee-9fef4497ccb6-S124145/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e257476-a18b-45a2-9c37-913905e9545b/runs/003441f3-4e95-416f-a612-b3491c21ea15/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_gc/scratch/2/core.4418)
#
# An error report file with more information is saved as:
# /opt/mach5/mesos/work_dir/slaves/3c846bae-ce30-4a97-93ee-9fef4497ccb6-S124145/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/2e257476-a18b-45a2-9c37-913905e9545b/runs/003441f3-4e95-416f-a612-b3491c21ea15/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_gc/scratch/2/hs_err_pid4418.log
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#
----------System.err:(0/0)----------
----------rerun:(45/6010)*----------

Here's the crashing thread's stack:

--------------- T H R E A D ---------------

Current thread (0x00007f8128000a80): ConcurrentGCThread "G1 Conc#1" [stack: 0x00007f81343f2000,0x00007f81344f2000] [id=4480]

Stack: [0x00007f81343f2000,0x00007f81344f2000], sp=0x00007f81344f0c20, free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x696f05] void OopOopIterateDispatch<G1CMOopClosure>::Table::oop_oop_iterate<ObjArrayKlass, oopDesc*>(G1CMOopClosure*, oopDesc*, Klass*)+0xc5
V [libjvm.so+0x6bed51] void G1CMTask::process_grey_task_entry<true>(G1TaskQueueEntry)+0xd1
V [libjvm.so+0x6b7638] G1CMTask::drain_local_queue(bool) [clone .part.0] [clone .constprop.0]+0x68
V [libjvm.so+0x6bac21] G1CMTask::do_marking_step(double, bool, bool)+0x421
V [libjvm.so+0x6c020d] G1CMConcurrentMarkingTask::work(unsigned int)+0xdd
V [libjvm.so+0xe1fdaf] GangWorker::loop()+0x5f
V [libjvm.so+0xe1fe0f]
V [libjvm.so+0xd7635e] Thread::call_run()+0xde
V [libjvm.so+0xbd010f] thread_native_entry(Thread*)+0xdf


siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x00007f8114438ed0