From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Delivered-To: caml-list@yquem.inria.fr Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by yquem.inria.fr (Postfix) with ESMTP id B85BBBCAB for ; Sat, 14 May 2005 15:29:24 +0200 (CEST) Received: from pih-relay06.plus.net (pih-relay06.plus.net [212.159.14.133]) by concorde.inria.fr (8.13.0/8.13.0) with ESMTP id j4EDTOHu012066 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO) for ; Sat, 14 May 2005 15:29:24 +0200 Received: from [80.229.56.224] (helo=chetara) by pih-relay06.plus.net with esmtp (Exim) id 1DWwhn-0000Uw-PZ for caml-list@yquem.inria.fr; Sat, 14 May 2005 14:29:23 +0100 From: Jon Harrop Organization: Flying Frog Consultancy Ltd. To: caml-list Subject: Re: [Caml-list] AMD64 segfault Date: Sat, 14 May 2005 14:29:05 +0100 User-Agent: KMail/1.7.1 References: <1115937349.17251.8.camel@pelican.wigram> <200505130233.27713.jon@ffconsultancy.com> <1116044057.17482.1010.camel@pelican.wigram> In-Reply-To: <1116044057.17482.1010.camel@pelican.wigram> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200505141429.06249.jon@ffconsultancy.com> X-Miltered: at concorde with ID 4285FD34.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Spam: no; 0.00; caml-list:01 segfault:01 stack:01 segfault:01 stack:01 segfaults:01 ocamlopt:01 ocaml:01 frog:98 wrote:01 wrote:01 overflows:01 floats:01 data:02 caml:02 X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on yquem.inria.fr X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=disabled version=3.0.2 X-Spam-Level: On Saturday 14 May 2005 05:14, skaller wrote: > On Fri, 2005-05-13 at 11:33, Jon Harrop wrote: > > Yes, the stack overflows much more quickly on AMD64 for me (pure64 Debian > > vs stock x86 Debian) and also causes a segfault instead of throwing > > Stack_overflow. I've no idea why. > > Addresses are 64 bits instead of 32. That doesn't explain why it segfaults rather than throwing Stack_overflow. Also, does ocamlopt put non-address data on the stack (e.g. floats)? -- Dr Jon D Harrop, Flying Frog Consultancy Ltd. Objective CAML for Scientists http://www.ffconsultancy.com/products/ocaml_for_scientists