From: Kirk Haines <wyhaines@...>
Date: 2010-04-10T02:48:49+09:00
Subject: [ruby-core:29394] Re: [Backport #3118] backport r25230 and r25995 to fix segfault

On Fri, Apr 9, 2010 at 11:45 AM, Matthew Kent <redmine@ruby-lang.org> wrote:
> Backport #3118: backport r25230 and r25995 to fix segfault
> http://redmine.ruby-lang.org/issues/show/3118
>
> Author: Matthew Kent
> Status: Open, Priority: High
> Assigned to: Kirk Haines
>
> Spent some time tracking down a segfault introduced in newer versions of 1.8.6.
>
> mkent@el-test:~/git/matzruby (p306)$ ruby -v ~/open4_segfault.rb
> ruby 1.8.6 (2010-02-05 patchlevel 399) [x86_64-linux]
> 1000 calls
> /home/mkent/.gem/ruby/1.8/gems/open4-1.0.1/lib/open4.rb:52: [BUG] Segmentation fault
> ruby 1.8.6 (2010-02-05) [x86_64-linux]
>
> Aborted
>
> After much testing it seems the changes introduced in 1.8.6 p306 are at fault as p305 and earlier don't exhibit the problem.
>
> As 1.8.7 p174 and up work fine I've identified the following changes that correct the issue:
>
> http://redmine.ruby-lang.org/repositories/revision/ruby-18?rev=25230
> http://redmine.ruby-lang.org/repositories/revision/ruby-18?rev=25995
> also requires
> http://redmine.ruby-lang.org/repositories/revision/ruby-18?rev=16015
>
> after which the example I've enclosed can do 200,000 calls without issue.

Thank you.  I am looking at it now.


Kirk Haines