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Date:      Tue, 23 Dec 1997 09:37:47 +1030
From:      Greg Lehey <grog@lemis.com>
To:        Bruce Kingsland <brucek@pacifier.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: FreeBSD and Parity
Message-ID:  <19971223093747.50693@lemis.com>
In-Reply-To: <199712220838.AAA27519@mail.pacifier.com>; from Bruce Kingsland on Mon, Dec 22, 1997 at 12:33:51AM -0800
References:  <199712220838.AAA27519@mail.pacifier.com>

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On Mon, Dec 22, 1997 at 12:33:51AM -0800, Bruce Kingsland wrote:
> Howdy,
>
> I have the FreeBSD 2.1.5 from Walnut Creek with book and 2 CD's, and in
> the book (yes I actually read them) it mentions that Parity is a good
> thing to have. I'm having a heck of a time finding a mother board that
> has parity. I found an ASUS Pentium Pro board, but nobody in the US
> stocks them,. or will order one for me. Having worked with hardware for
> a long time, I find it unthinkable that people would want to buy a system
> with no data protection.

Parity is by no means complete protection.  Memory chips have become
much more reliable, and parity errors are relatively rare, so people
became unwilling to pay the extra for them.  I must say that I don't
feel comfortable without parity, but as you observe, it's almost
impossible to get parity memory.

> So the queston is: What kind of issues should I be looking for when
> running this on a K6 without parity? 

For some reason, hardware failures typically show up as segmentation
violations when compiling.  From my observations, one of the reasons
seems to be that the C compiler can spend more time maxing out the
processor, which causes things to heat up.  Particularly on a K6, I'd
strongly recommend an original AMD cooler; otherwise you could find
that the processor dies when executing CPU intensive code.

> I probably should be monitoring some newsgroups, but my time seems
> to be limited enough that I barely have time to deal with just the
> email.

Ditto.  I don't think news is worth the trouble any more.

Greg




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