From owner-freebsd-smp Tue Jun 29 13:19:51 1999 Delivered-To: freebsd-smp@freebsd.org Received: from cygnus.rush.net (cygnus.rush.net [209.45.245.133]) by hub.freebsd.org (Postfix) with ESMTP id D4CFE14D73 for ; Tue, 29 Jun 1999 13:19:42 -0700 (PDT) (envelope-from bright@rush.net) Received: from localhost (bright@localhost) by cygnus.rush.net (8.9.3/8.9.3) with SMTP id QAA26446; Tue, 29 Jun 1999 16:23:35 -0400 (EDT) Date: Tue, 29 Jun 1999 15:23:34 -0500 (EST) From: Alfred Perlstein To: Kevin Van Maren Cc: freebsd-smp@FreeBSD.ORG, tich@ma.ikos.com, vanmaren@cs.utah.edu Subject: Re: high-efficiency SMP locks - submission for review In-Reply-To: <199906291908.NAA08028@fast.cs.utah.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Tue, 29 Jun 1999, Kevin Van Maren wrote: re: rep prefix on x86 string instructions... > This wasn't always the case: I believe on the 8088, it was non- > interruptable, however, they had to fix it to deal with crossing > page boundaries on the i386. early x86 (i think 8088) wouldn't properly save the state of the string instrucions during an interupt, just some useless info i remember from "PC Intern" A resume wouldn't continue the op. -Alfred To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message