Description of problem:
When using the Java Flight Recorder, we see the application randomly crash with a SIGSEGV.

Version-Release number of selected component (if applicable):

java-11-openjdk-11.0.19.0.7-1.el7_9.x86_64

How reproducible:
Happens randomly every few weeks (relevant process is restarted daily, so this is not caused by prolonged execution)

Steps to Reproduce:N
No steps, enable JFR on application

Actual results:

Our application crashes with the following stack trace :

Current thread (0x00007f5d8c5df800): JavaThread "JFR Recorder Thread" daemon [_thread_in_vm, id=11223, stack(0x00007f5d552af000,0x00007f5d553b0000)]

Stack: [0x00007f5d552af000,0x00007f5d553b0000], sp=0x00007f5d553ae9b0, free space=1022k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xc40480] ObjectSampleCheckpoint::write_stacktrace(JfrStackTrace const*, JfrCheckpointWriter&)+0x190
V [libjvm.so+0xc4091d] StackTraceBlobInstaller::install(ObjectSample*)+0x14d
V [libjvm.so+0xc40d33] ObjectSampleCheckpoint::on_rotation(ObjectSampler const*)+0x243
V [libjvm.so+0x91cd6d] JfrRecorderService::pre_safepoint_write()+0x2ed
V [libjvm.so+0x91d465] JfrRecorderService::write()+0x75
V [libjvm.so+0x91d952] JfrRecorderService::rotate(int)+0x122
V [libjvm.so+0x91e372] recorderthread_entry(JavaThread*, Thread*)+0x172
V [libjvm.so+0xea6232] JavaThread::thread_main_inner()+0x232
V [libjvm.so+0xea258a] Thread::call_run()+0x16a
V [libjvm.so+0xc63ef8] thread_native_entry(Thread*)+0xe8

siginfo: si_signo: 11 (SIGSEGV), si_code: 1 (SEGV_MAPERR), si_addr: 0x00000000000000a9

Expected results:

No SIGSEGV

Additional info:

This looks similar to the problem reported in these JDK bugs, which we believed to be fixed:

• https://bugs.openjdk.org/browse/JDK-8253813
• https://bugs.openjdk.org/browse/JDK-8253888

Related commit:

• https://hg.openjdk.java.net/jdk-updates/jdk11u/rev/6ac1b68e7c00