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Date:      Wed, 29 Nov 1995 07:29:39 -0500
From:      "Danny J. Zerkel" <dzerkel@feephi.phofarm.com>
To:        gfoster@gfoster.com, hackers@freebsd.org
Subject:   Re: posessed by daemons?
Message-ID:  <199511291229.HAA01482@feephi.phofarm.com>

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> When checking this out I found that md5's on the src tgzs were not
> consistent, and inconsistent in a weird way.  If I do 'md5 *' in the
> src directory, three or four of the 131 files don't match the md5's on
> the same files generated on another machine.  Different files exhibit
> this from run to run!  However, I can do 'repeat 10000 md5 sgnu.aa |
> sort | uniq' and not get any mismatches (no matter what value of
> sgnu.aa I select :-).

I saw this exact behavior way back in May.  Turned out my L2 cache
was broken.  Motherboard replacement (under warranty) fixed it.

> I am seriously mistrusting this machine at this point!  It is a P90,
> SiS, L2 cache disabled, 2940, 4GB Barracuda, as slow as the CMOS will
> let me on the memory accesses.  I don't know whether to blame the
> memory or disk sub-systems.  Of course, no errors are ever reported on
> either and for user stuff it runs like a champ, although it is very
> lightly loaded.  There may be some incremental bit rot going on but I
> haven't seen any in the three weeks or so it has been up.

I'd say memory.  Mine ran okay, too.  Just things like md5 and gunzip failed.

------------------------------------------------------------------------
Danny J. Zerkel
Photon Farmers
http://www.phofarm.com



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