From: Ammar Ali <ammarabuali@...>
Date: 2010-12-07T09:32:12+09:00
Subject: Re: embedding ruby - segfault after initialization when running rb_gc_start??

On Mon, Dec 6, 2010 at 6:47 PM, Marc Weber <marco-oweber@gmx.de> wrote:
> Hi,
>
> I'm trying to embed Ruby into the Ur web programming language.
>
> Everything seems to work fine when using rb_gc_disable().
> When not disabling gc it segfaults when requiring 'net/http'.
>
> Then I tried running gc manually and found out that the crash even
> happens after initialization.
>
> However it only happens when urweb compiles everything. Compiling a
> embed ruby into C test case everything is fine.
>
> What could be causing this?
>
> valgrind log, initialization code:
> http://mawercer.de/~marc/crash.txt
>
> Any ideas? Could symbol collisions cause this?
> The libruby.so file is used. Ruby version is 1.9.2-p0
>
> The strange thing is that the segfault only happens when being called
> within urweb.

Is this a multithreaded environment? If so, it sounds vaguely like the
problem discussed in the following issue:

 http://redmine.ruby-lang.org/issues/show/2294

Regards,
Ammar