From owner-freebsd-current Sat Oct 30 10:42:32 1999 Delivered-To: freebsd-current@freebsd.org Received: from smtprch1.nortel.com (smtprch1.nortelnetworks.com [192.135.215.14]) by hub.freebsd.org (Postfix) with ESMTP id 3ECAE14A26; Sat, 30 Oct 1999 10:42:26 -0700 (PDT) (envelope-from atrens@nortelnetworks.com) Received: from zcars01t by smtprch1.nortel.com; Sat, 30 Oct 1999 12:40:03 -0500 Received: from hcarp00g.ca.nortel.com by zcars01t; Sat, 30 Oct 1999 13:39:59 -0400 Received: from hcarp00g.ca.nortel.com (hcarp00g.ca.nortel.com [47.196.31.114]) by hcarp00g.ca.nortel.com (8.9.3/8.7.3) with ESMTP id NAA68115; Sat, 30 Oct 1999 13:43:09 -0400 (EDT) Date: Sat, 30 Oct 1999 13:43:09 -0400 (EDT) From: "Andrew Atrens" X-Sender: atrens@hcarp00g.ca.nortel.com Reply-To: "Andrew Atrens" To: Brian Fundakowski Feldman Cc: current@freebsd.org Subject: Re: K6-III wrtalloc + mtrr support ? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Fri, 29 Oct 1999, Brian Fundakowski Feldman wrote: > > I disabled (or asked Peter to, actually) the K6-2+ MTRR driver a while > back because with XFree86 3.9.16 (an alpha which uses MTRR support) it > would cause memory corruption. It's very strange, and something I > really haven't figured out... If you want to enable it, go ahead, but > be very wary; if you do find out what's wrong, let me know. I remember this now, I was one of those that got bit by this problem. What I recall is that MTRR support made a dramatic speed improvement, but alas was _extremely_ unstable. That was when I had an ATI Expert@Work card. Since then I've gotten a 3dfx Voodoo3, perhaps this card might be more stable? So Brian, how do I switch this back on ? On the other topic - write allocation - should I be seeing an indication of its status in the boot up messages ? Hmm, I guess I could just UTSL on this one :) ... Andrew. -- +-- | Andrew Atrens Nortel Networks, Ottawa, Canada. | | All opinions expressed are my own, not those of any employer. | --+ Heller's Law: The first myth of management is that it exists. Johnson's Corollary: Nobody really knows what is going on anywhere within the organization. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message