From owner-freebsd-bugs Wed Jun 7 13:24:10 1995 Return-Path: bugs-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id NAA04392 for bugs-outgoing; Wed, 7 Jun 1995 13:24:10 -0700 Received: from gndrsh.aac.dev.com (gndrsh.aac.dev.com [198.145.92.241]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id NAA04377 for ; Wed, 7 Jun 1995 13:24:04 -0700 Received: (from rgrimes@localhost) by gndrsh.aac.dev.com (8.6.11/8.6.9) id NAA03182; Wed, 7 Jun 1995 13:23:45 -0700 From: "Rodney W. Grimes" Message-Id: <199506072023.NAA03182@gndrsh.aac.dev.com> Subject: Re: 2.0.5-A: Very disheartening? To: terry@cs.weber.edu (Terry Lambert) Date: Wed, 7 Jun 1995 13:23:44 -0700 (PDT) Cc: davidg@Root.COM, maddox@CS.Berkeley.EDU, sysseh@devetir.qld.gov.au, bugs@FreeBSD.org In-Reply-To: <9506071953.AA08491@cs.weber.edu> from "Terry Lambert" at Jun 7, 95 01:53:02 pm X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 725 Sender: bugs-owner@FreeBSD.org Precedence: bulk > > > I do know for certain that any write to memory of data that is in the > > Pentium I cache will cause it to invalidate the I cache line. > > It will, according to "The Undocumented PC". I take it that you mean it will invalidate the prefetch buffer, I already said I knew it would invalidate the I cache. Looks like you got your reply to the wrong part of context. > The Pentium is the only Intel processer for which this is true. That is my understanding for pre fetch buffer invalidation. Need to go get the P6 specs and see what they have done there... -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Custom computers for FreeBSD