Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/perlun/jruby-core-dump
Illustrates a core dump with JRuby
https://github.com/perlun/jruby-core-dump
Last synced: about 1 month ago
JSON representation
Illustrates a core dump with JRuby
- Host: GitHub
- URL: https://github.com/perlun/jruby-core-dump
- Owner: perlun
- Created: 2018-02-16T08:45:50.000Z (almost 7 years ago)
- Default Branch: master
- Last Pushed: 2018-02-16T08:57:21.000Z (almost 7 years ago)
- Last Synced: 2024-11-04T14:51:16.520Z (3 months ago)
- Language: Ruby
- Size: 3.91 KB
- Stars: 0
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
[](https://travis-ci.org/perlun/jruby-core-dump)
# jruby-core-dump
This repo illustrates a core dump with JRuby
```
$ rvm install jruby-9.1.15.0
$ bundle exec rspec foo.rb
```
The output you get is roughly this:
```
$ bundle exec rspec foo.rb
foo
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x000000010608a6a0, pid=29946, tid=0x0000000000000307
#
# JRE version: Java(TM) SE Runtime Environment (8.0_152-b16) (build 1.8.0_152-b16)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.152-b16 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# V [libjvm.dylib+0x48a6a0]
#
# 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:
# /Volumes/git/perlun/jruby-core-dump/hs_err_pid29946.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
Abort trap: 6
```
I noted that you can even trigger the bug this easily:
```shell
$ ruby -e "Process.kill('USR2', Process.pid)"
```
The above code crashes the JVM with a `SIGSEGV` on JRuby, whereas on MRI it outputs this:
```shell
$ ruby -e "Process.kill('USR2', Process.pid)"
User defined signal 2: 31
```
Verified on MRI 2.3.6 and 2.5.0.