From: Hongli Lai <hongli@...99.net>
Date: 2009-11-21T19:52:11+09:00
Subject: [ruby-core:26859] Re: [Bug #1525](Closed) Deadlock in Ruby 1.9's VM caused by ConditionVariable.wait and fork?

Tanaka Akira wrote:
> In article <87einw55ej.fsf@fsij.org>,
>   Tanaka Akira <akr@fsij.org> writes:
> 
>> After this commit, test-all causes SEGV on FreeBSD 6.4.
> 
> Simplified test case:
> 
> % ./ruby -e 'fork { puts }'
> -e:1: [BUG] native_mutex_unlock return non-zero: 1
> ruby 1.9.2dev (2009-11-19 trunk 25848) [x86_64-freebsd6.4]

This is what I get on FreeBSD 7.1-RELEASE:

$ ./ruby -e 'fork { puts }'
-e:1:in `fork': fork() function is unimplemented on this machine (NotImplementedError)
        from -e:1:in `<main>'

This is because FreeBSD 7.1 does not pass the 'if fork works with pthread' test.
Maybe all FreeBSD versions < 7.1 should be blacklisted too?