From owner-freebsd-smp Fri Jan 17 09:58:05 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.4/8.8.4) id JAA16691 for smp-outgoing; Fri, 17 Jan 1997 09:58:05 -0800 (PST) Received: from phaeton.artisoft.com (phaeton.Artisoft.COM [198.17.250.211]) by freefall.freebsd.org (8.8.4/8.8.4) with SMTP id JAA16686 for ; Fri, 17 Jan 1997 09:58:01 -0800 (PST) Received: (from terry@localhost) by phaeton.artisoft.com (8.6.11/8.6.9) id KAA08699; Fri, 17 Jan 1997 10:44:02 -0700 From: Terry Lambert Message-Id: <199701171744.KAA08699@phaeton.artisoft.com> Subject: Re: Floating point probs? To: peter@spinner.dialix.com (Peter Wemm) Date: Fri, 17 Jan 1997 10:44:02 -0700 (MST) Cc: sysseh@devetir.qld.gov.au, smp@freebsd.org In-Reply-To: <199701170540.NAA03128@spinner.DIALix.COM> from "Peter Wemm" at Jan 17, 97 01:40:31 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > > After perusing the list for a while I hear that "there are some > > floating point problems with the SMP code". What problems, and > > when do they arise (I'm thinking of buying the Gigabyte 586dx MB soon)? > > My personal feeling is that the problems are of the same order as the > Shuttle Challenger's problems. > > I don't really know how to fix it, because I have not researched how the > fpu interlocking works and really don't know what the right approach is. Call Richard Feynman's son. He will probably put your CPU in a glass of ice water while you discuss the problem in great gory detail... (Just another Challenger reference to match the first). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.