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Date:      Fri, 15 Oct 1999 19:04:02 +0100
From:      Mark Ovens <mark@ukug.uk.freebsd.org>
To:        FreeBSD Bob <fbsdbob@weedcon1.cropsci.ncsu.edu>
Cc:        questions@freebsd.org
Subject:   Re: Sig 11 screeching halt.... need info about.
Message-ID:  <19991015190402.A944@marder-1>
In-Reply-To: <199910151501.LAA73420@weedcon1.cropsci.ncsu.edu>
References:  <199910151501.LAA73420@weedcon1.cropsci.ncsu.edu>

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On Fri, Oct 15, 1999 at 11:01:31AM -0400, FreeBSD Bob wrote:
> Anyone have a pointer to where the info about sig11 halts in FreeBSD is?
> I have never had one, before, but, changed from an old Adaptec 1540A to
> a 1542CF controller, and anything more recent than Ol' 2.1.7.1 gives me
> a screeching signal 11 halt.  That is what I get for using dinosaurian
> hardware (i.e., the wife's old windoz box) as a FreeBSD play box...(:+\\...
> But, I should probably brush up on what it means, exactly, and what is
> necessary to get it right.....  Any pointers to the sig11 info are
> appreciated.
> 

http://www.bitwizard.nl/sig11

HTH

> I found a bit of a FAQ that suggests that memory timing might be the
> culprit.  Can anyone explain why  2.1.7.1 might work and 2.2.6 and up
> would not?  The boot floppies come up and the install begins, then, when
> disk writing occurs, it sig11's.  Would adding a wait state be likely
> to help?  I have plenty of spare ram chips, and was thinking about
> swapping some out for starters.  Would clocking the machine from 33mhz
> to 20mhz make a difference, or suggest whether it was ram or maybe
> cache or such?
> 
> Any insights are appreciated.
> 
> Thanks
> 
> Bob
> 
> 
> 
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