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Date:      Tue, 25 Nov 1997 17:25:08 +1030
From:      Mike Smith <mike@smith.net.au>
To:        Nate Williams <nate@mt.sri.com>
Cc:        shimon@simon-shapiro.org, freebsd-current@FreeBSD.ORG
Subject:   Re: Compiler Bug??? 
Message-ID:  <199711250655.RAA00340@word.smith.net.au>
In-Reply-To: Your message of "Mon, 24 Nov 1997 23:03:02 PDT." <199711250603.XAA25821@mt.sri.com> 

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> Guess what, you have bad memory!  Seriously, this is not a compiler bug,
> but something in your hardware that is hosed up.  Either the memory is
> bad, the timings are bad, the cache is bad, or some combination of the
> above is bad.  Compiler bugs don't go away on reboots, but corrupted
> memory does.

... just to clarify here, as I am reading Simon slightly differently 
from you;

 - code built while running UP works.
 - code built while running SMP fails.

Simon, are you using the -pipe option with gcc?  Have you tried without 
it?  What optimisation level are you using?

I'm inclined to agree with Nate in that it's unlikely that you have 
found a compiler bug, more likely an environment (eg. kernel) bug that 
is causing you some serious grief.

mike





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