From owner-freebsd-smp Mon Mar 3 16:29: 1 2003 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 0183837B401 for ; Mon, 3 Mar 2003 16:29:00 -0800 (PST) Received: from ztxmail03.ztx.compaq.com (ztxmail03.ztx.compaq.com [161.114.1.207]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1D27843F3F for ; Mon, 3 Mar 2003 16:28:59 -0800 (PST) (envelope-from john.cagle@hp.com) Received: from cceexg13.americas.cpqcorp.net (cceexg13.americas.cpqcorp.net [16.110.250.119]) by ztxmail03.ztx.compaq.com (Postfix) with ESMTP id 118E252EF; Mon, 3 Mar 2003 18:28:58 -0600 (CST) Received: from cceexc19.americas.cpqcorp.net ([16.110.250.85]) by cceexg13.americas.cpqcorp.net with Microsoft SMTPSVC(5.0.2195.2966); Mon, 3 Mar 2003 18:28:57 -0600 X-MimeOLE: Produced By Microsoft Exchange V6.0.6375.0 content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: Compaq 370/380/580 G3 SMP problem details? Date: Mon, 3 Mar 2003 18:28:57 -0600 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Compaq 370/380/580 G3 SMP problem details? Thread-Index: AcLh3+Zvqbqm3YokST2ImNkPPW4sgQAAzkkw From: "Cagle, John (ISS-Houston)" To: "Spencer Minear" Cc: X-OriginalArrivalTime: 04 Mar 2003 00:28:57.0923 (UTC) FILETIME=[0BA9C130:01C2E1E5] Sender: owner-freebsd-smp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Spencer, Peter Wemm checked in a new version of mpapic.c around the end of January to fix this issue. I have verified that SMP with RELENG_4 now works with our latest G3 architecture servers, including hyperthreading. Which version of FreeBSD are you using? Also, can you point me to the spec that discusses the TPR? I haven't been able to find that one... Thanks, John -------------------------------- John Cagle john.cagle@hp.com Principal Member Technical Staff Industry Standard Servers Hewlett-Packard Company > -----Original Message----- > From: Spencer Minear [mailto:spencer_minear@securecomputing.com]=20 > Sent: Monday, March 03, 2003 5:52 PM > To: freebsd-smp@freebsd.org > Subject: Compaq 370/380/580 G3 SMP problem details? >=20 >=20 >=20 > I'm told that there may have been some discussion in a=20 > FreeBSD mail list about the real details behind the problems=20 > with new Compaq G3 servers not running in MP mode. The root=20 > problem appears to be that on these systems, placing a value=20 > of 0x10 in the Local APIC TPR register results in blocking=20 > all interrupts. The spec clearly says that this should not=20 > block interrupts with priorty greater than 1, but it sure=20 > appears to be happening. >=20 > As mentioned I've been lead to belive that there are some=20 > entries in the FreeBSD mail archive discussing the details=20 > behind the problem, but I cannot find them. I have had one=20 > customer report that upgrading the BIOS on a 370 to the=20 > lastest reve resolved the problem on that system. I have=20 > upgraded the BIOS on the 380 to the lastest available from=20 > Compaq and found that did not provide any change in behavior. >=20 > If anyone is can point me to the details that may have been=20 > discussed or have more details on the solutions available=20 > from Compaq I would appreciate hearing from you. >=20 > Thanks, >=20 > -- Spence Minear To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message