The following test failed in the JDK19 CI:

vmTestbase/vm/mlvm/indy/stress/java/relinkVolatileCallSiteFreq/Test.java

Here's a snippet from the log file:

#section:main
----------messages:(4/243)----------
command: main vm.mlvm.indy.stress.java.relinkVolatileCallSiteFreq.Test
reason: User specified action: run main/othervm vm.mlvm.indy.stress.java.relinkVolatileCallSiteFreq.Test
Mode: othervm [/othervm specified]
elapsed time (seconds): 44.646
----------configuration:(0/0)----------
----------System.out:(18/1358)----------
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007eff5c7454e0, pid=20551, tid=20580
#
# JRE version: Java(TM) SE Runtime Environment (19.0+14) (fastdebug build 19-ea+14-844)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 19-ea+14-844, mixed mode, sharing, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
# Problematic frame:
# v ~BufferBlob::I2C/C2I adapters
#
# 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/ff806ead-2cac-495d-9cbc-62116f99bf14-S13697/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/4bc3a6e3-0f35-4110-abc2-5eb61315c8ac/runs/a8ca008f-7ea9-49b9-92f1-5d91b7d5e098/testoutput/test-support/jtreg_open_test_hotspot_jtreg_vmTestbase_vm_mlvm/scratch/2/core.20551)
#
# An error report file with more information is saved as:
# /opt/mach5/mesos/work_dir/slaves/ff806ead-2cac-495d-9cbc-62116f99bf14-S13697/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/4bc3a6e3-0f35-4110-abc2-5eb61315c8ac/runs/a8ca008f-7ea9-49b9-92f1-5d91b7d5e098/testoutput/test-support/jtreg_open_test_hotspot_jtreg_vmTestbase_vm_mlvm/scratch/2/hs_err_pid20551.log
#
# If you would like to submit a bug report, please visit:
# https://bugreport.java.com/bugreport/crash.jsp
#
----------System.err:(0/0)----------
----------rerun:(39/8614)*----------

Here's the crashing thread's stack:

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

Current thread (0x00007efeec1b0280): JavaThread "FreqMeasurementThread" [_thread_in_Java, id=20580, stack(0x00007eff26fbe000,0x00007eff270bf000)]

Stack: [0x00007eff26fbe000,0x00007eff270bf000], sp=0x00007eff270bd988, free space=1022k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
v ~BufferBlob::I2C/C2I adapters
v ~StubRoutines::call_stub
V [libjvm.so+0xf2d804] JavaCalls::call_helper(JavaValue*, methodHandle const&, JavaCallArguments*, JavaThread*)+0x504
V [libjvm.so+0xf2e0b4] JavaCalls::call_virtual(JavaValue*, Klass*, Symbol*, Symbol*, JavaCallArguments*, JavaThread*)+0x4b4
V [libjvm.so+0xf2e507] JavaCalls::call_virtual(JavaValue*, Handle, Klass*, Symbol*, Symbol*, JavaThread*)+0x77
V [libjvm.so+0x10a3beb] thread_entry(JavaThread*, JavaThread*)+0x12b
V [libjvm.so+0x194c29a] JavaThread::thread_main_inner()+0x25a
V [libjvm.so+0x19545e0] Thread::call_run()+0x100
V [libjvm.so+0x1637684] thread_native_entry(Thread*)+0x104


siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x00005ea960b432b0