From owner-cvs-all Mon Aug 7 17:26: 7 2000 Delivered-To: cvs-all@freebsd.org Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by hub.freebsd.org (Postfix) with ESMTP id BD09937B690; Mon, 7 Aug 2000 17:26:00 -0700 (PDT) (envelope-from grog@wantadilla.lemis.com) Received: (from grog@localhost) by wantadilla.lemis.com (8.9.3/8.9.3) id JAA99438; Tue, 8 Aug 2000 09:56:00 +0930 (CST) (envelope-from grog) Date: Tue, 8 Aug 2000 09:55:59 +0930 From: Greg Lehey To: Mike Smith Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/i386 mpboot.s Message-ID: <20000808095559.A92263@wantadilla.lemis.com> References: <20000808093307.D65739@wantadilla.lemis.com> <200008080024.RAA07480@mass.osd.bsdi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.4i In-Reply-To: <200008080024.RAA07480@mass.osd.bsdi.com>; from msmith@FreeBSD.org on Mon, Aug 07, 2000 at 05:24:54PM -0700 Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.lemis.com/~grog X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Monday, 7 August 2000 at 17:24:54 -0700, Mike Smith wrote: >> On Sunday, 6 August 2000 at 19:28:37 -0700, Tor Egge wrote: >>> tegge 2000/08/06 19:28:37 PDT >>> >>> Modified files: >>> sys/i386/i386 mpboot.s >>> Log: >>> Add workaround for livelock problem when starting APs. >>> >>> With more than 1 AP present, an AP could fail to properly release >>> the mp lock before waiting for smp_started to become nonzero. >>> >>> With early startup of APs, the BSP could fail to properly release >>> the mp lock before waiting for smp_started to become nonzero. >> >> This is the third SMP commit I've seen from you in the last few days. >> Are you aware that we're currently completely overhauling this code? >> It would probably be more efficient if you joined the overhaul effort. > > The APIC code at this level is not being 'overhauled' right now, actually. For some definition of level, I'm sure you're right. We're currently working on the APIC code trying to launch APs. I'm sure that's something that would interest Tor. Greg -- Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message