From owner-freebsd-smp Fri Nov 29 10:28:15 1996 Return-Path: owner-smp Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id KAA27209 for smp-outgoing; Fri, 29 Nov 1996 10:28:15 -0800 (PST) Received: from spinner.DIALix.COM (root@spinner.DIALix.COM [192.203.228.67]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id KAA27204 for ; Fri, 29 Nov 1996 10:28:10 -0800 (PST) Received: from spinner.DIALix.COM (peter@localhost.DIALix.oz.au [127.0.0.1]) by spinner.DIALix.COM (8.8.3/8.8.3) with ESMTP id CAA19491; Sat, 30 Nov 1996 02:28:01 +0800 (WST) Message-Id: <199611291828.CAA19491@spinner.DIALix.COM> X-Mailer: exmh version 1.6.9 8/22/96 To: Poul-Henning Kamp cc: freebsd-smp@freebsd.org Subject: Re: Pentium CPU steppings In-reply-to: Your message of "Fri, 29 Nov 1996 18:52:44 +0100." <2942.849289964@critter.tfs.com> Date: Sat, 30 Nov 1996 02:28:01 +0800 From: Peter Wemm Sender: owner-smp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk Poul-Henning Kamp wrote: > >Hmm, I wonder if it's safe to test for this at the end of npx.c in the > >kernel? > > Linux can do it, so why couldn't we ? Yeah, but have you ever seen it report "yes"? Last I checked, (2.0.twenty something), the code looked very much like it hardwired the "fdiv bug present?" result to "no" and I could not find any code in the kernel that actually tested for the bug. (That's not to say that there isn't, but the only references to the variable that my grep turned up were the default initialisation and the printing of the (bogus) result.) Cheers, -Peter