*BSD News Article 49884


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From: "Jordan K. Hubbard" <jkh@FreeBSD.org>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: 950726 Page Fault in Kernel
Date: 1 Sep 1995 00:04:33 GMT
Organization: Walnut Creek CDROM
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Message-ID: <425imh$jmp@reason.cdrom.com>
References: <SAKAI.95Aug22002915@csle59.csl.cl.nec.co.jp> <41rs0h$poa@bonnie.tcd-dresden.de> <4222vf$l1c@bocad.com>
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To: kruener@bocad12.bocad.com
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kruener@bocad12.bocad.com (Heiner) wrote:
>I'm afraid I got the same error, once in nfsd, in rm and in Idle.
>All during heavy nfs traffic to and from the machine. Copying to
>that machine over nfs either using cp over nfs or rcp for hours did
>not reveal this error, but after copying from that machine crashed
>after ~5 hours. The fault was always in malloc (from kern_malloc).
>Every time it kernel-panic'd and tried to reboot.

There are very few motherboard & cache combinations that will actually 
work reliably > 120Mhz.  In fact, I only run 90Mhz machines since reliability
is far more important to me than squeezing every last MIP out of the hardware.

In fact, what a lot of vendors are selling as 120Mhz and 130Mhz systems
should qualify as false advertising and criminal stupidity to boot.
Slow memory, cache or a support chipset on the motherboard that just can't
hack it are frequent finds on such systems and the vendors will generally
just shrug and say "hey, it runs under DOS, must be your software!" when you
complain that they've just sold you a piece of expensive junk. If you
actually show them the numbers proving that the hardware can't POSSIBLY work
given the specs of the components they're using, they'll get surly on you
and claim that they've been building systems since, oh, at least January and
have way more experience in such things than a mere engineer such as yourself..
:-)
-- 
						Jordan