The following test failed in the JDK20 CI:

java/util/concurrent/ConcurrentQueues/OfferRemoveLoops.java

Here's a snippet from the log file:

#section:main
----------messages:(7/230)----------
command: main OfferRemoveLoops 100
reason: User specified action: run main OfferRemoveLoops 100
started: Tue Nov 22 00:36:42 UTC 2022
Mode: agentvm
Agent id: 9
finished: Tue Nov 22 00:36:50 UTC 2022
elapsed time (seconds): 8.134
----------configuration:(14/1857)----------

<snip>

----------stdout:(7/461)----------
#
# Compiler replay data is saved as:
# /opt/mach5/mesos/work_dir/slaves/0c72054a-24ab-4dbb-944f-97f9341a1b96-S137574/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/81e0643e-8b2a-45ee-b729-fe729204b5a6/runs/cf1e3133-b0cd-4339-8e7c-8ed7027a0c4f/testoutput/test-support/jtreg_open_test_jdk_tier1_part2/scratch/3/replay_pid2002869.log
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#
result: Error. Agent communication error: java.io.EOFException; check console log for any additional details

So we have a partial crash report in the stdout log and
a link to the replay_pid file. I'm going to start this bug in
hotspot/compiler for initial triage.

This is a Tier1 failure so it would normally start as a P2, but
it did not reproduce so I'm starting it as a P3.