From: daniel@... Date: 2014-03-16T10:15:25+00:00 Subject: [ruby-core:61535] [ruby-trunk - Bug #9505] Bug that should cause SystemStackError segfaults under Ruby 2.1 Issue #9505 has been updated by Daniel Fone. I can reproduce almost exactly this issue on 2.1.1p97. Full details and steps I used to reproduce are in https://github.com/danielfone/rspec-memoization-segfault ---------------------------------------- Bug #9505: Bug that should cause SystemStackError segfaults under Ruby 2.1 https://bugs.ruby-lang.org/issues/9505#change-45821 * Author: Jimmy Cuadra * Status: Feedback * Priority: Normal * Assignee: * Category: * Target version: * ruby -v: ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-darwin13.0] * Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- Using rspec-core.3.0.0.beta1 and ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-darwin13.0]: require "rspec" require "rspec/autorun" describe "Ruby 2.1 segfault" do let(:argument) { double } subject { subject.new(double) } it "will segfault" do subject end end Running this program under Ruby 2.0 results in a SystemStackError. Under Ruby 2.1, Ruby segfaults. Crash log: https://gist.github.com/jimmycuadra/8892336 Segfault output: https://gist.github.com/jimmycuadra/8892213 -- http://bugs.ruby-lang.org/