Crash on macosx-aarch64 when merging Leyden premain with mainline

[ioi.lam at oracle.com]

I got a crash when building the JDK after merging the latest premain 
with the following changeset in the mainline


commit fdc11a1569248c9b671b66d547b4616aeb953ecf
Author: Sergey Bylokhov <serb at openjdk.org>
Date:   Wed Sep 10 11:41:42 2025

     8367131: Test com/sun/jdi/ThreadMemoryLeakTest.java fails on 32 bits

I had to do "make jdk-image LOG=debug" to find out the exact command 
that crashed and ran it by hand to get hs_err, which shows:


V  [libjvm.dylib+0x2c49c8] 
BarrierSetNMethod::nmethod_stub_entry_barrier(unsigned char**)+0x140
v  ~StubRoutines::Stub Generator method_entry_barrier_stub 
0x0000000131de4938
siginfo: si_signo: 10 (SIGBUS), si_code: 1 (BUS_ADRALN), si_addr: 
0x000000012a8c7108


Could anyone familiar with the code help trouble shooting this? (You 
don't want to merge beyond the above changeset as you'd run into some 
CDS conflicts, which I plan to address above this crash is fixed).

This happens on my laptop (M3 and Sequoia 15.6.1) and our CI as well. 
For some reason, the crash didn't happen with GitHub action, so it may 
be specific to macos or CPU versions.

Thanks

- Ioi