Date: Tue, 20 Oct 1998 19:38:37 -0500 From: David Kelly <dkelly@hiwaay.net> To: freebsd-stable@FreeBSD.ORG Subject: Re: ECC memory support Message-ID: <199810210038.TAA06684@nospam.hiwaay.net> In-Reply-To: Message from Bart Lindsey <bart@burra.zip.com.au> of "Tue, 20 Oct 1998 23:05:01 %2B1000." <199810201305.XAA01587@burra.zip.com.au>
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Bart Lindsey writes: > Hi Burkard, > > ECC occurs between the memory modules and the motherboard. The kernel doesn't > get involved and the process is transparent to the kernel. Granted. But I think the original question was asking if there a reporting mechanism by which one could be notified if the ECC hardware decided to correct a bit? Searching the kernel, I haven't found any mention. Haven't downloaded whatever docs Intel offers on Pentium and PPro chipsets to see if there is any way to report an ECC event. > The PC architecture doesn't handle memory problems very nicely and typically > the CPU resets without warning or just freezes without the kernel having any > opportunity to trap an error. On ECC the MB should correct a single bit error and keep on trucking. No kernel or BIOS intervention. But it sure would be Just Like A Real Computer if one could log the ECC event via syslog. If ECC is correcting bits and keeping my computer running but not telling me, its not doing me huge amount of good. If it corrects only on bit per couple of months then it is doing good work. But if I really have a bad bit and ECC corrects it every time its used, I'd like to know about it and get a replacement memory SIMM. -- David Kelly N4HHE, dkelly@nospam.hiwaay.net ===================================================================== The human mind ordinarily operates at only ten percent of its capacity -- the rest is overhead for the operating system. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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