From: "xentronium (Mark A)" Date: 2012-08-03T05:23:02+09:00 Subject: [ruby-core:46947] [ruby-trunk - Bug #6825] forking and pthread_cond_timedwait: Invalid argument (EINVAL) on OS X / 1.9.3-p194 Issue #6825 has been updated by xentronium (Mark A). Another update: I opened up a file `active_record.rb` inside installed activerecord gem and completely commented it out (so that even ActiveRecord is not defined after require 'active_record'). Still crashes. I guess that takes care of gems and everything, so the problem should be between ruby, rubygems and standard library. Line `require 'active_record'` is still required for whole setup to crash for some reason. Hope that gives you some idea. ---------------------------------------- Bug #6825: forking and pthread_cond_timedwait: Invalid argument (EINVAL) on OS X / 1.9.3-p194 https://bugs.ruby-lang.org/issues/6825#change-28610 Author: xentronium (Mark A) Status: Feedback Priority: Normal Assignee: Category: Target version: ruby -v: ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-darwin10.8.0] https://gist.github.com/47e48301aea114e7b1d3 here is the gist with required setup to reproduce bug. Also crash log and stdout. It seems that forking is essential for this setup to crash. Also, if you use database connection in some way prior to forking, it might not crash (however, with more complex code it still does). ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-darwin10.8.0] OS X 10.6.8 hostinfo output: Mach kernel version: Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386 Kernel configured for up to 4 processors. 2 processors are physically available. 4 processors are logically available. Processor type: i486 (Intel 80486) Processors active: 0 1 2 3 Primary memory available: 8.00 gigabytes Default processor set: 88 tasks, 627 threads, 4 processors Load average: 0.55, Mach factor: 3.43 compiled with gcc version: i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3) -- http://bugs.ruby-lang.org/