[ruby-core:46982] [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 kosaki (Motohiro KOSAKI).


At least, require 'mysql2' version nor drbrain version don't crash on my Mountain Lion environment.



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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-28638

Author: xentronium (Mark A)
Status: Open
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)


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