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Date:      Tue, 12 Aug 1997 00:42:17 -0700
From:      David Greenman <dg@root.com>
To:        "John T. Farmer" <jfarmer@sabre.goldsword.com>
Cc:        hardware@FreeBSD.ORG
Subject:   Re: K6-200 Has anyone successfully done a 'make world' ? 
Message-ID:  <199708120742.AAA25806@implode.root.com>
In-Reply-To: Your message of "Tue, 12 Aug 1997 01:18:38 EDT." <199708120518.BAA05117@sabre.goldsword.com> 

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>I think that table listed does answer the question.  The questions that
>I have are:
>   1.) 	what kernel (custom vs. generic) is being used by those that 
>	seem to have gotten it working

   It's not that simple. My K6-166 worked fine for 15+ make worlds for the
first 2 weeks and then one day decided to become flakey and has remained
flakey despite every attempt to remedy the problem - replacing everything
except the CPU. All of this was with the *same* source tree. The last step
would be to replace the CPU with another K6 chip, but I'm not willing to
waste any more money on it at this point (nor do I have the money to waste
in any case).

>   3.)	Does anybody have any clues as to what excatly is dieing in the 
>	"make world" process?

   When CPUs are non-idle for extended periods (such as what occurs during
a "make world"), they get hot. My K6 appears to have developed a sensitivity
to heat and giant heat sinks with thermal compound can't keep it cool enough
to be reliable. It dies anywhere from 1 hour to 2.25 hours into the make
world, depending on the quality of the heat sink, how warm the room is at
the time, and the phase of the moon. Dies in this case means that a process
exited with a a weird syntax error or a sig-11.

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project



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