Date: Thu, 22 Oct 1998 23:57:01 +0200 From: Burkard Meyendriesch <bm@malepartus.de> To: Bart Lindsey <bart@burra.zip.com.au> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: ECC memory support Message-ID: <199810222157.XAA04898@Reineke.malepartus.de> In-Reply-To: Your Message from Tue, 20 Oct 1998 10:17:20 PDT. <Pine.BSF.4.02A.9810201014300.26709-100000@shell.uniserve.ca>
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On Tue, 20 Oct 1998, Bart Lindsey wrote: > Hi Burkard, > [...] > Depending on the revision of your motherboard, you might have to download > the bios patch described at URL: > > http://www.asus.com/downloads/bios/ > > There are two factors mentioned which can cause parity errors: > 1. PS2 mouse installed or > 2. AMD K6 installed and ECC/parity enabled. > > Good Luck! > > Bart. > Hi Bart, thanks for the hint. Yes indeed, I run an AMD K6/233 with ECC enabled; last night I upgraded my BIOS. Maybe it will help my spurious errors to disappear... 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? The only thing I could find is --- /usr/src/sys/i386/i386/trap.c -------------------------------------- ... /* machine/parity/power fail/"kitchen sink" faults */ if (isa_nmi(code) == 0) return; panic("NMI indicates hardware failure"); ... ------------------------------------------------------------------------ Burkard -- * Burkard Meyendriesch ___ bm@malepartus.de * * Hauptstrasse 45 ________|________ tel +49 5484 96097 * * D-49219 Glandorf-Schwege 0 52 05'05"N 07 54'29"E * * PGP-Fingerprint DF 83 04 CD B5 D1 10 43 57 4C AD 9A B1 02 28 17 * To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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