The failure happens because we have extra verification code that is incorrect to use when calling the NMT tracking code.

Here's log file snippet:

#section:main
----------messages:(7/765)----------
command: main -XX:+UseZGC -XX:+UnlockDiagnosticVMOptions -XX:+ZVerifyOops -XX:ZCollectionInterval=1 -XX:-CreateCoredumpOnCrash -XX:CompileCommand=dontinline,*::mergeImpl* compiler.gcbarriers.UnsafeIntrinsicsTest
reason: User specified action: run main/othervm -XX:+UseZGC -XX:+UnlockDiagnosticVMOptions -XX:+ZVerifyOops -XX:ZCollectionInterval=1 -XX:-CreateCoredumpOnCrash -XX:CompileCommand=dontinline,*::mergeImpl* compiler.gcbarriers.UnsafeIntrinsicsTest
started: Thu Jun 08 16:57:40 UTC 2023
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules java.base --add-exports java.base/jdk.internal.misc=ALL-UNNAMED --add-opens java.base/jdk.internal.misc=ALL-UNNAMED
finished: Thu Jun 08 16:57:41 UTC 2023
elapsed time (seconds): 1.738
----------configuration:(5/166)----------
<snip>

----------System.out:(16/904)----------
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f1f6f71ba90, pid=1001731, tid=1001734
#
# JRE version: (21.0+26) (fastdebug build )
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 21-ea+26-LTS-2327, mixed mode, sharing, tiered, compressed class ptrs, z gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0x19d3a90] ZPhysicalMemoryManager::nmt_commit(zoffset, unsigned long) const+0xb0
#
# CreateCoredumpOnCrash turned off, no core file dumped
#
# An error report file with more information is saved as:
# /opt/mach5/mesos/work_dir/slaves/cd627e65-f015-4fb1-a1d2-b6c9b8127f98-S1058/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/69630e22-1db4-46ce-a756-6e23cc9835c7/runs/31397100-7e82-4520-986e-f9e3e88d1558/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_compiler_all_gcs/scratch/0/hs_err_pid1001731.log
#
#
----------System.err:(0/0)----------
----------rerun:(47/7826)*----------