README

This is a sample application for rails/rails#33460

System dependencies

Install these programs to run the application correctly.

program	version
ruby	2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin17]
Rails	5.2.0
Bundler	1.16.1
Mysql	5.7.21 Homebrew

Configuration

• clone this repository in any directory you want.

git clone https://github.com/y4m4p/rails_issue_33460.git

• install gem dependencies

bundle install --path vendor/bundle

• Create database.(We won't be using the database. This is just for application sake.)

bundle exec rails db:create

• Run server.

bundle exec rails s

Steps to reproduce the issue

• Go to localhost:3000 in your web browser.

• You should be able to access the welcome page.

• Now, in app/helpers/web_pages_helper.rb uncomment the 9th line.

if true
  link_to 'somewhere', some_view_path(foo: 'true')
else
  # Uncomment the next line after you have successfully started up the server.
  #link_to 'somewhere', some_view_path(foo: 'false')
end 

uncomment ↓   

if true
  link_to 'somewhere', some_view_path(foo: 'true')
else
  # Uncomment the next line after you have successfully started up the server.
  link_to 'somewhere', some_view_path(foo: 'false')
end 

• Access localhost:3000/some_view in your browser.

• The server should crash with a error with the following message.

Started GET "/some_view" for 127.0.0.1 at 2018-07-31 20:43:46 +0900
(your directory)/rails_issue_33460/vendor/bundle/ruby/2.5.0/gems/bootsnap-1.3.1/lib/bootsnap/compile_cache/iseq.rb:12: [BUG] Segmentation fault at 0x0000000000000000
ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin17]

...
...

[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

[IMPORTANT]
Don't forget to include the Crash Report log file under
DiagnosticReports directory in bug reports.

Abort trap: 6