From: "kosaki (Motohiro KOSAKI)" Date: 2012-11-04T07:01:03+09:00 Subject: [ruby-core:48823] [ruby-trunk - Bug #6825][Closed] forking and pthread_cond_timedwait: Invalid argument (EINVAL) on OS X / 1.9.3-p194 Issue #6825 has been updated by kosaki (Motohiro KOSAKI). Status changed from Assigned to Closed > I don't have snow-leopard environment, so I cannot investigate this issue. OK. Thank you. This looks like old OS X bug but we have no way to dig. give up. I'd like to close this feature as won't fix. Anyway snow leopard is no longer supported. To Mark, please reopen when you find exact reason and fixing way. we are very sorry for inconvenience. ---------------------------------------- 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-32312 Author: xentronium (Mark A) Status: Closed Priority: Normal Assignee: mrkn (Kenta Murata) 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/