From owner-freebsd-hackers Sun Mar 12 13:11:27 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from dt051n0b.san.rr.com (dt051n0b.san.rr.com [204.210.32.11]) by hub.freebsd.org (Postfix) with ESMTP id 7F8F237BC42; Sun, 12 Mar 2000 13:11:21 -0800 (PST) (envelope-from Doug@gorean.org) Received: from gorean.org (doug@master [10.0.0.2]) by dt051n0b.san.rr.com (8.9.3/8.9.3) with ESMTP id NAA72926; Sun, 12 Mar 2000 13:11:20 -0800 (PST) (envelope-from Doug@gorean.org) Message-ID: <38CC07F7.B55F708B@gorean.org> Date: Sun, 12 Mar 2000 13:11:19 -0800 From: Doug Barton Reply-To: freebsd-hackers@freebsd.org Organization: Triborough Bridge & Tunnel Authority X-Mailer: Mozilla 4.72 [en] (X11; U; FreeBSD 4.0-CURRENT-0307 i386) X-Accept-Language: en MIME-Version: 1.0 To: Mike Smith Cc: Carroll Kong , freebsd-stable@freebsd.org, freebsd-hackers@freebsd.org Subject: Re: Detecting ECC errors References: <200003121934.LAA08972@mass.cdrom.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG CC'ing -hackers in case we can scare up some interest . . . Mike Smith wrote: > > > Hi. I took a look over the archives and noticed this ancient > > thread. (1998) However, I checked the handbook and LINT for options on > > how FreeBSD logs ECC errors, but I could not find anything. Has this > > finally been implemented? Or is there currently no way for the OS to > > detect the # of corrections / detections of errors by DIMM slot? > > You're correct; there isn't. It's a relatively simple task that's been > waiting for a junior hacker to come along and take it up. It's also > devillishly difficult to _test_ such code... This would be a very valuable thing to have though (just to restate the obvious). We had a sun machine go down at work with no symptoms at all... other than the log which showed that ECC errors were being caught and corrected (mostly) at a furious pace. If not for that log we would have spent hours testing possible reasons for the crash. Doug -- "Welcome to the desert of the real." - Laurence Fishburne as Morpheus, "The Matrix" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message