From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: From: David Presotto To: 9fans@cse.psu.edu Subject: Re: [9fans] 'fp: stack overflow' In-Reply-To: <200403041835.i24IZPTZ058629@adat.davidashen.net> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="upas-zinjhyllosqszcdptszagmbscv" Date: Thu, 4 Mar 2004 13:40:50 -0500 Topicbox-Message-UUID: 1534456e-eacd-11e9-9e20-41e7f4b1d025 This is a multi-part message in MIME format. --upas-zinjhyllosqszcdptszagmbscv Content-Disposition: inline Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit When I said bug, I meant in our compiler not the graphviz code... --upas-zinjhyllosqszcdptszagmbscv Content-Type: message/rfc822 Content-Disposition: inline Received: from plan9.cs.bell-labs.com ([135.104.9.2]) by plan9; Thu Mar 4 13:39:26 EST 2004 Received: from mail.cse.psu.edu ([130.203.4.6]) by plan9; Thu Mar 4 13:39:24 EST 2004 Received: by mail.cse.psu.edu (CSE Mail Server, from userid 60001) id 6769E19F64; Thu, 4 Mar 2004 13:39:14 -0500 (EST) Received: from psuvax1.cse.psu.edu (psuvax1.cse.psu.edu [130.203.4.6]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id 6BEFE19F44; Thu, 4 Mar 2004 13:39:10 -0500 (EST) X-Original-To: 9fans@cse.psu.edu Delivered-To: 9fans@cse.psu.edu Received: by mail.cse.psu.edu (CSE Mail Server, from userid 60001) id EA4CC19F5B; Thu, 4 Mar 2004 13:38:21 -0500 (EST) Received: from adat.davidashen.net (unknown [217.113.20.242]) by mail.cse.psu.edu (CSE Mail Server) with ESMTP id E1FCF19E85 for <9fans@cse.psu.edu>; Thu, 4 Mar 2004 13:38:18 -0500 (EST) Received: from adat.davidashen.net (localhost.davidashen.net [127.0.0.1]) by adat.davidashen.net (8.12.8p1/8.12.8) with ESMTP id i24IZQki058630 for <9fans@cse.psu.edu>; Thu, 4 Mar 2004 22:35:26 +0400 (AMT) (envelope-from dvd@adat.davidashen.net) Received: (from dvd@localhost) by adat.davidashen.net (8.12.8p1/8.12.8/Submit) id i24IZPTZ058629 for 9fans@cse.psu.edu; Thu, 4 Mar 2004 22:35:25 +0400 (AMT) From: David Tolpin Message-Id: <200403041835.i24IZPTZ058629@adat.davidashen.net> To: 9fans@cse.psu.edu Subject: Re: [9fans] 'fp: stack overflow' In-Reply-To: <4e56bfb32c4ad2613181e26e3dbfdb58@plan9.bell-labs.com> Content-Type: text/plain; charset=KOI8-R Sender: 9fans-admin@cse.psu.edu Errors-To: 9fans-admin@cse.psu.edu X-BeenThere: 9fans@cse.psu.edu X-Mailman-Version: 2.0.11 Precedence: bulk Reply-To: 9fans@cse.psu.edu List-Id: Fans of the OS Plan 9 from Bell Labs <9fans.cse.psu.edu> List-Archive: Date: Thu, 4 Mar 2004 22:35:25 +0400 (AMT) X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on psuvax1.cse.psu.edu X-Spam-Status: No, hits=0.0 required=5.0 tests=none autolearn=no version=2.63 X-Spam-Level: > Are you using notes that might be interrupting in the middle of a > floating point expression and then doing more floating point in the > note handler? Other than that, it just sounds like a bug. Staring > at the assembly language (acid it and asm() the routine) would > probably tell you what's wrong. It's a working code from graphviz, used on many platforms; the rest works (that is, I can just comment this part out and get a graph with straight lines instead of splines), and the floating point numbers are only introduced inside the function. I'll try to debug the assembly code. --upas-zinjhyllosqszcdptszagmbscv--