Issue #9874 has been updated by Ivan Barrios. File ruby_2014-05-27-091149_ivanbarrios.crash added Attaching .crash file from ~/Library/Logs/DiagnosticReports. (this is the only directory that contained a related .crash file...) ---------------------------------------- Bug #9874: Segmentation fault when loading rails console or rails server https://bugs.ruby-lang.org/issues/9874#change-47025 * Author: Ivan Barrios * Status: Feedback * Priority: Normal * Assignee: * Category: * Target version: * ruby -v: ruby 2.1.2p112 (2014-05-28 revision 46192) [x86_64-darwin13.0] * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- OSX 10.9.3. This segmentation emerged only after upgrading from OSX 10.9.2 to 10.9.3. rails v4.0.3 Attached call stack and Gemfile/Gemfile.lock if those help to reproduce. Also tried gem pristine --all, to force recompile of all gems with no success. Seg fault is NOT encountered on the same system when running ruby 2.1.0p0 (2013-12-25 revision 44422) [x86_64-darwin13.0] ---Files-------------------------------- ruby-2.1.2p112_stack_trace.txt (65 KB) Gemfile (2.92 KB) Gemfile.lock (18.4 KB) ruby_2014-05-27-091149_ivanbarrios.crash (24.4 KB) -- https://bugs.ruby-lang.org/