Date: Thu, 28 Sep 2000 00:18:53 +0200 From: Kai Voigt <k@123.org> To: Brad Knowles <blk@skynet.be> Cc: Kai Voigt <k@123.org>, Kris Kennaway <kris@FreeBSD.ORG>, freebsd-stable@FreeBSD.ORG Subject: Re: 4.1-STABLE, make world problems, funny case Message-ID: <20000928001853.A1920@abc.123.org> In-Reply-To: <v0422080bb5f230dfb505@[10.0.1.2]>; from blk@skynet.be on Sat, Sep 23, 2000 at 12:09:17PM %2B0200 References: <20000923082602.A39467@abc.123.org> <Pine.BSF.4.21.0009230130570.63170-100000@freefall.freebsd.org> <20000923112305.C39467@abc.123.org> <20000923112552.D39467@abc.123.org> <v0422080bb5f230dfb505@[10.0.1.2]>
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Hello,
Brad Knowles wrote:
> At 11:25 AM +0200 2000/9/23, Kai Voigt wrote:
>
> > I just found /usr/ports/sysutils/memtest/ and hope to find that bit.
>
> Sadly, most memory testing utilities don't find problems like
> this. It seems to be a conjunction of lots of I/O and heavy stress
> placed on memory that trips things like this up -- precisely the sort
> of thing you get during a "make world", but precisely the sort of
> thing that you don't find with a memory tester.
Plus userland tools cannot report exactly what is wrong. memtest86 is
a nice dos tool that helps in that case.
> I believe that the regular suggestion is to try a "make world"
> with half of your regular memory installed. If that works
> (repeatedly), then try it with the other half. If one fails and the
> other succeeds, then you've narrowed down which half the bad memory
> is in. You swap out half of the suspect memory with the good memory,
> and you try again. If the test succeeds, then you know the part you
> swapped out contains the bad memory.
>
> Repeat this process until you've found the SIMMs or DIMMs that
> repeatedly cause failure, while removing them allows things to work
> normally.
I removed all the SIMMs and gave the motherboard a big amount of air to
get rid of the dust. Then I inserted the SIMMs again and now everything
seems to be fine. "make world" and building a kernel worked without any
problems.
Thanks for all the hints. I wish we could get rid of hardware and make
everything on software :)
Kai
--
kai voigt dreiecksplatz 8
24105 kiel
04 31 - 22 19 98 69
http://k.123.org/
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