From owner-freebsd-stable Fri Aug 21 09:57:53 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA02051 for freebsd-stable-outgoing; Fri, 21 Aug 1998 09:57:53 -0700 (PDT) (envelope-from owner-freebsd-stable@FreeBSD.ORG) Received: from pn.wagsky.com (wagsky.vip.best.com [206.86.71.127]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA02030; Fri, 21 Aug 1998 09:57:49 -0700 (PDT) (envelope-from Jeff@Wagsky.com) Received: from [192.168.6.3] (mac.pn.wagsky.com [192.168.6.3]) by pn.wagsky.com (8.8.8/8.8.8) with ESMTP id JAA00333; Fri, 21 Aug 1998 09:57:07 -0700 (PDT) (envelope-from Jeff@Wagsky.com) X-Sender: mailman@mail.pn.wagsky.com Message-Id: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Fri, 21 Aug 1998 09:57:00 -0700 To: freebsd-stable@FreeBSD.ORG From: Jeff Kletsky Subject: FYI: page faults caused by "speculative read" Cc: freebsd-questions@FreeBSD.ORG, support@tomshardware.com Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG While I have not had this problem with several other Pentium systems, in building 2.2.7-RELEASE from CD-ROM I recently encountered a system that would not run sysinstall without page faults. This was apparently caused by enabling "Speculative Read" in the BIOS. Abit AB-TX5 (Intel 430TX) AMD K6-233 at "normal" voltages and clock 64 MB SDRAM (10 ns) I do not know the hardware cause of this problem; the vendor I use has been very reliable and supplies better-than-average components. I have enabled speculative read on other AB-TX5-based systems (albeit all Intel Pentiums) without incident, and find the M/B to be very reliable, even at 83 MHz bus speeds. In the hopes someone else may be spared gray hairs, Jeff To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message