From owner-freebsd-smp@FreeBSD.ORG Wed Mar 26 14:46:50 2003 Return-Path: Delivered-To: freebsd-smp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1AE2937B404 for ; Wed, 26 Mar 2003 14:46:50 -0800 (PST) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id A2EBE43FA3 for ; Wed, 26 Mar 2003 14:46:47 -0800 (PST) (envelope-from ps@mu.org) Received: by elvis.mu.org (Postfix, from userid 1000) id 888202ED3CF; Wed, 26 Mar 2003 14:46:47 -0800 (PST) Date: Wed, 26 Mar 2003 14:46:47 -0800 From: Paul Saab To: "Cagle, John (ISS-Houston)" Message-ID: <20030326224647.GA57345@elvis.mu.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4i X-Spam-Status: No, hits=-32.5 required=5.0 tests=EMAIL_ATTRIBUTION,IN_REP_TO,QUOTED_EMAIL_TEXT,REFERENCES, REPLY_WITH_QUOTES,USER_AGENT_MUTT autolearn=ham version=2.50 X-Spam-Level: X-Spam-Checker-Version: SpamAssassin 2.50 (1.173-2003-02-20-exp) cc: freebsd-smp@freebsd.org Subject: Re: how many cpus can freebsd support in smp? X-BeenThere: freebsd-smp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: FreeBSD SMP implementation group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Mar 2003 22:46:53 -0000 jhb 2003/03/21 13:46:15 PST FreeBSD src repository Modified files: (Branch: RELENG_4) sys/i386/include apic.h Log: MFC: rev 1.20: expand the APIC_ID_MASK to cover all 8 upper bits. This fixes SMP on the SW7500CW2 motherboards. You'll still need to increase NAPICID on the 8-way machine w/ hyperthreading. It would be interesting to know if the machine boots or if there's some other define that needs to be increased.. Cagle, John (ISS-Houston) (john.cagle@hp.com) wrote: > It was about a month ago. When was the APIC mask widened? > > > -----Original Message----- > > From: Brooks Davis [mailto:brooks@one-eyed-alien.net] > > Sent: Wednesday, March 26, 2003 4:11 PM > > To: Cagle, John (ISS-Houston) > > Cc: Barry Wu; freebsd-smp@freebsd.org > > Subject: Re: how many cpus can freebsd support in smp? > > > > > > On Wed, Mar 26, 2003 at 08:22:57AM -0600, Cagle, John > > (ISS-Houston) wrote: > > > I've had 8 real cpus running on a ProLiant DL740. I tried > > to get 16 > > > (8 with hyperthreading), but the kernel needs xapic or > > clustered apic > > > support to do that. > > > > Have you tried since the APIC mask was widened? Prior to > > that it obviously wouldn't work since you had 8 bits and 16 CPUs. > > > > -- Brooks > > > > -- > > Any statement of the form "X is the one, true Y" is FALSE. > > PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 > > > _______________________________________________ > freebsd-smp@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-smp > To unsubscribe, send any mail to "freebsd-smp-unsubscribe@freebsd.org"