From owner-freebsd-stable Thu Oct 22 15:19:34 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA11406 for freebsd-stable-outgoing; Thu, 22 Oct 1998 15:19:34 -0700 (PDT) (envelope-from owner-freebsd-stable@FreeBSD.ORG) Received: from gatekeeper.tsc.tdk.com (gatekeeper.tsc.tdk.com [207.113.159.21]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id PAA11401 for ; Thu, 22 Oct 1998 15:19:33 -0700 (PDT) (envelope-from gdonl@tsc.tdk.com) Received: from sunrise.gv.tsc.tdk.com (root@sunrise.gv.tsc.tdk.com [192.168.241.191]) by gatekeeper.tsc.tdk.com (8.8.8/8.8.8) with ESMTP id PAA05751; Thu, 22 Oct 1998 15:17:30 -0700 (PDT) (envelope-from gdonl@tsc.tdk.com) Received: from salsa.gv.tsc.tdk.com (salsa.gv.tsc.tdk.com [192.168.241.194]) by sunrise.gv.tsc.tdk.com (8.8.5/8.8.5) with ESMTP id PAA10570; Thu, 22 Oct 1998 15:17:29 -0700 (PDT) Received: (from gdonl@localhost) by salsa.gv.tsc.tdk.com (8.8.5/8.8.5) id PAA17041; Thu, 22 Oct 1998 15:17:27 -0700 (PDT) From: Don Lewis Message-Id: <199810222217.PAA17041@salsa.gv.tsc.tdk.com> Date: Thu, 22 Oct 1998 15:17:26 -0700 In-Reply-To: Burkard Meyendriesch "Re: ECC memory support" (Oct 22, 11:57pm) X-Mailer: Mail User's Shell (7.2.6 alpha(3) 7/19/95) To: Burkard Meyendriesch Subject: Re: ECC memory support Cc: freebsd-stable@FreeBSD.ORG Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Oct 22, 11:57pm, Burkard Meyendriesch wrote: } Subject: Re: ECC memory support } But my original questions are still pending: Isn't there any possibility } to detect 1-bit errors even if they are detected and corrected by my } ECC electronics? Isn't there any register of the 82430HX chip set which } can be examined after an memory error NMI? Yes there is. It's documented in the chipset datasheet that you can download from Intel's web site. Also your BIOS should have a setting to configure whether a 1-bit error causes an NMI. The last time this subject came up, some folks wanted to use the BIOS (which should understand the chipset on that motherboard) to retrieve this information rather than build knowledge of specific chipsets into the kernel. On an unrelated thread, someone mentioned that there were some unresolved issues with rearming NMI. I would very much like to have this feature, however it might be implemented. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message