From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262888AbTLJBUd (ORCPT ); Tue, 9 Dec 2003 20:20:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263015AbTLJBUd (ORCPT ); Tue, 9 Dec 2003 20:20:33 -0500 Received: from c-130372d5.012-136-6c756e2.cust.bredbandsbolaget.se ([213.114.3.19]:54452 "EHLO pomac.netswarm.net") by vger.kernel.org with ESMTP id S262888AbTLJBUb (ORCPT ); Tue, 9 Dec 2003 20:20:31 -0500 Subject: NForce2 and AMD, disconnect. From: Ian Kumlien To: linux-kernel@vger.kernel.org Cc: ross@datscreative.com.au In-Reply-To: <1071007478.5293.11.camel@athlonxp.bradney.info> References: <1070827127.1991.16.camel@big.pomac.com> <200312081207.45297.ross@datscreative.com.au> <1070993538.1674.10.camel@big.pomac.com> <1071007478.5293.11.camel@athlonxp.bradney.info> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-aREIXKuf50j4q72En51J" Message-Id: <1071019231.1670.35.camel@big.pomac.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.5 Date: Wed, 10 Dec 2003 02:20:31 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --=-aREIXKuf50j4q72En51J Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hi, again. I did some reading on amd's site, and if the disconnect + apic fixed the same problem as the ~500ns delay, then it could be as i suspect... I suspect that something goes wrong with apic ack when the cpu is disconnected and according to the amd docs we could check the Northbridge's CLKFWDRST or isn't that avail on the outside? (It would be interesting to see if that fixes the problem as well.) http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/262= 37.PDF I don't really have the knowledge but it would sure be nicer to fix this by checking this than to just disable it. I dunno if there is something we could do from within the kernel aswell with the sending of HLT but i doubt it. Anyways, we need a generalized patch that does better checking on the NMI bit (like Ross' patch).=20 PS. Anyone that can point me to northbridge tech docks? and CC --=20 Ian Kumlien -- http://pomac.netswarm.net --=-aREIXKuf50j4q72En51J Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iD8DBQA/1nTf7F3Euyc51N8RAqpFAKC4G2zeDQyXGf+6r+Hli9w74jDcCwCfXCPV pg67pPEtReaU2ydtW26IICw= =grm1 -----END PGP SIGNATURE----- --=-aREIXKuf50j4q72En51J--