SIGSEGV after upgrading to 1.8.0_282 from 1.8.0_275-b01

[ahmetmircik]

Hi,
I have encountered this issue after upgrade. Could you please check it?

OS
macOS x64

Release

openjdk version "1.8.0_282"
OpenJDK Runtime Environment (build 1.8.0_282-bre_2021_01_20_16_06-b00)
OpenJDK 64-Bit Server VM (build 25.282-b00, mixed mode)

Reproducer

import sun.misc.Unsafe;

import java.lang.reflect.Field;

public class JvmCrash {

    public static void main(String[] args) {
        long address = UNSAFE.allocateMemory(16);
        UNSAFE.putLong(null, address, 12);
    }

    static Unsafe UNSAFE;

    static {
        try {
            UNSAFE = findUnsafe();
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }

    private static Unsafe findUnsafe() throws IllegalAccessException {
        try {
            return Unsafe.getUnsafe();
        } catch (SecurityException se) {
            Class<Unsafe> type = Unsafe.class;
            try {
                Field field = type.getDeclaredField("theUnsafe");
                field.setAccessible(true);
                return type.cast(field.get(type));
            } catch (Exception e) {
                for (Field field : type.getDeclaredFields()) {
                    if (type.isAssignableFrom(field.getType())) {
                        field.setAccessible(true);
                        return type.cast(field.get(type));
                    }
                }
            }
        }
        return null;
    }
}

[karianna]

I can't reproduce this on Mac Os X 10.15.7 (Catalina) using adoptopenjdk 1.8.0_282. -no crash for me (even after 100 runs)

[ahmetmircik]

I can reliably reproduce it on macOS Big Sur Version 11.1 after installing JDK here: https://github.com/AdoptOpenJDK/homebrew-openjdk/blob/master/Casks/adoptopenjdk8.rb

This is my hardware overview:

Model Name:	MacBook Pro
Model Identifier:	MacBookPro15,1
Processor Name:	6-Core Intel Core i9
Processor Speed:	2,9 GHz
Number of Processors:	1
Total Number of Cores:	6
L2 Cache (per Core):	256 KB
L3 Cache:	12 MB
Hyper-Threading Technology:	Enabled
Memory:	32 GB

This is how i run it:

/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/bin/java -javaagent:/Applications/IntelliJ IDEA CE.app/Contents/lib/idea_rt.jar=56878:/Applications/IntelliJ IDEA CE.app/Contents/bin -Dfile.encoding=UTF-8 -classpath /usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/charsets.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/ext/cldrdata.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/ext/dnsns.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/ext/jaccess.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/ext/localedata.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/ext/nashorn.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/ext/sunec.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/ext/sunjce_provider.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/ext/sunpkcs11.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/ext/zipfs.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/jce.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/jfr.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/jsse.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/management-agent.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/resources.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/jre/lib/rt.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/lib/dt.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/lib/jconsole.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/lib/sa-jdi.jar:/usr/local/Cellar/openjdk@8/1.8.0+282/libexec/openjdk.jdk/Contents/Home/lib/tools.jar:/Users/ahmet.mircik/Desktop/jvmCrash/target/classes JvmCrash

And the error i see:

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x000000010f566c1e, pid=83033, tid=0x0000000000002903
#
# JRE version: OpenJDK Runtime Environment (8.0_282) (build 1.8.0_282-bre_2021_01_20_16_06-b00)
# Java VM: OpenJDK 64-Bit Server VM (25.282-b00 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.dylib+0x566c1e]  Unsafe_SetLong+0xd2
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /Users/ahmet.mircik/Desktop/jvmCrash/hs_err_pid83033.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
#

Process finished with exit code 134 (interrupted by signal 6: SIGABRT)

[aahlenst]

That's a local build created by Homebrew. We cannot help with that. Although you might have configured our tap, you have to install adoptopenjdk8 which is placed into /Library/Java/JavaVirtualMachines/. You can invoke it via java. You might need some additional configuration if you have multiple versions installed (https://mkyong.com/java/how-to-set-java_home-environment-variable-on-mac-os-x/).

[ahmetmircik]

I didn't know build was created by Homebrew.
Then i think i can close this issue by noting that when i use 1.8.0_282 from here https://adoptopenjdk.net/archive.html?variant=openjdk8, i couldn't see any error.
Thanks for the help.