From: "hsbt (Hiroshi SHIBATA)" Date: 2014-01-03T09:09:51+09:00 Subject: [ruby-core:59489] [ruby-trunk - Bug #9334][Feedback] activesupport-4.0.2/lib/active_support/dependencies.rb:229: [BUG] Segmentation fault at 0x00000000000018 Issue #9334 has been updated by hsbt (Hiroshi SHIBATA). Status changed from Open to Feedback Could you try to trunk version of Ruby? ---------------------------------------- Bug #9334: activesupport-4.0.2/lib/active_support/dependencies.rb:229: [BUG] Segmentation fault at 0x00000000000018 https://bugs.ruby-lang.org/issues/9334#change-44035 Author: malagodia (Andrea Malagodi) Status: Feedback Priority: High Assignee: Category: Target version: ruby -v: 2.1.0 Backport: 2.1: UNKNOWN I have just upgraded to ruby 2.1.0 and running in Rails foreman (unicorn) and received a long error report, which I quite frankly do not understand, attached an output and diagnostics report -- http://bugs.ruby-lang.org/