Testing https://github.com/openjdk/jdk/pull/2200 shows a crash in compiler/debug/VerifyAdapterSharing.java:

# A fatal error has been detected by the Java Runtime Environment:
#
# SIGBUS (0xa) at pc=0x00000001098d6d08, pid=52606, tid=9731
#
# JRE version: Java(TM) SE Runtime Environment (17.0) (fastdebug build 17-internal+0-LTS-2021-02-27-1954067.mikael.vidstedt.jdk-macosjib)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 17-internal+0-LTS-2021-02-27-1954067.mikael.vidstedt.jdk-macosjib, compiled mode, tiered, compressed oops, compressed class ptrs, g1 gc, bsd-aarch64)
# Problematic frame:
# V [libjvm.dylib+0xd6d08] Assembler::ld_st2(RegisterImpl*, Address const&, int, int, int)+0x254
#
# Core dump will be written. Default location: core.52606
#
# An error report file with more information is saved as:
# /System/Volumes/Data/mesos/work_dir/slaves/28992c6d-c35d-42fa-8099-898223bf183b-S11309/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/eda33d5b-1dda-4d91-8950-bd14dcc0ad66/runs/d5b4c242-6c0b-4944-b6a3-149ef19e75ae/testoutput/test-support/jtreg_open_test_hotspot_jtreg_hotspot_not_fast_compiler/scratch/0/hs_err_pid52606.log
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#