From mboxrd@z Thu Jan  1 00:00:00 1970
Received: (from majordomo@localhost) by pauillac.inria.fr (8.7.6/8.7.3) id TAA22838; Thu, 11 Sep 2003 19:27:10 +0200 (MET DST)
X-Authentication-Warning: pauillac.inria.fr: majordomo set sender to owner-caml-list@pauillac.inria.fr using -f
Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id TAA01497 for <caml-list@pauillac.inria.fr>; Thu, 11 Sep 2003 19:27:09 +0200 (MET DST)
Received: from beech (beech.ucdavis.edu [128.120.141.134])
	by nez-perce.inria.fr (8.11.1/8.11.1) with ESMTP id h8BHR8T13997
	for <caml-list@inria.fr>; Thu, 11 Sep 2003 19:27:08 +0200 (MET DST)
Received: from ijtrotts by beech with local (Exim 3.36 #1 (Debian))
	id 19xVJp-0001C6-00; Thu, 11 Sep 2003 10:33:21 -0700
Date: Thu, 11 Sep 2003 10:33:21 -0700
From: Issac Trotts <ijtrotts@ucdavis.edu>
To: Christophe Raffalli <Christophe.Raffalli@univ-savoie.fr>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] FreeBSD + lablglut + thread: bug or not bug
Message-ID: <20030911173321.GA4359@beech>
Reply-To: ijtrotts@ucdavis.edu
References: <20030910185255.GF25815@ecooper.com> <3F607D6F.4010405@univ-savoie.fr>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <3F607D6F.4010405@univ-savoie.fr>
User-Agent: Mutt/1.5.4i
X-Loop: caml-list@inria.fr
X-Spam: no; 0.00; issac:01 trotts:01 ijtrotts:01 caml-list:01 lablglut:01 bug:01 bug:01 raffalli:01 glsurf:01 segv:01 3.07:01 segv:01 mainloop:01 lablglut:01 glsurf:01 
Sender: owner-caml-list@pauillac.inria.fr
Precedence: bulk

On Thu, Sep 11, 2003 at 03:49:35PM +0200, Christophe Raffalli wrote:
> Her is a small file (simplified from GlSurf)
> that SEGV on FreeBSD 4.3 (with NVidia driver ...) and ocaml-3.07beta2
> If you remove the line with thread.yeld it does not SEGV. note:
> thread.yeld is not called since Glut.mainLoop is not started, so I am
>  puzzled.
> 
> Note: all the examples in lablglut distributions appear to work on my 
> FreeBSD box and the same program (GlSurf) works on Linux, windows and OSX.
> 
> So there is a problem when you use FreeBSD+lablGL/GLUT+thread (you need 
> the three of them)
> 
> Here is the file:
> 
> -- test.ml
> 
>     ignore(Glut.init Sys.argv);
>     Glut.initDisplayMode ~alpha:true ~double_buffer:true ~depth:true () ;
>     Glut.initWindowSize ~w:300 ~h:300;
>     ignore (Glut.createWindow ~title:"bug demo");
>     Glut.idleFunc (Some Thread.yield);
>     print_string "titi";
>     print_newline ()
> 
> --
> 
> And the line used to compile it
> 
> ocamlc -o testbug functionstubs.o -thread -labels -I +lablglut -I 
> +lablGL -I +threads -pp "camlp4o pa_ifdef.cmo -DUNIX" -thread unix.cma 
> threads.cma lablglut.cma lablgl.cma -cclib -lGL -cclib -lGLU -cclib 
> -lXmu test.ml
> bash-2.05b$ ./testbug
> Segmentation fault (core dumped)

Thanks for your bug report.  I don't have a BSD box on hand to reproduce 
the bug, so there isn't much I can do about this at the moment.  Did Gerd
Stolpmann's advice help?

Issac Trotts

-------------------
To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners