Date: Wed, 26 Nov 1997 10:01:33 +1030 From: Mike Smith <mike@smith.net.au> To: Nate Williams <nate@mt.sri.com> Cc: Mike Smith <mike@smith.net.au>, shimon@simon-shapiro.org, freebsd-current@FreeBSD.ORG Subject: Re: Compiler Bug??? Message-ID: <199711252331.KAA00560@word.smith.net.au> In-Reply-To: Your message of "Tue, 25 Nov 1997 08:16:09 PDT." <199711251516.IAA27098@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. > > Actually, code built while running SMP was failing, but causing a boot > into UP caused it to work, and then going back to SMP caused it to still > work. Not exactly. I quote: ] Scenario 1: ] ] Xfmail of 17-Nov-97 with xforms 0.88: Compiles fine, then produces ] dozens of ``Bad Attribute'' and `Bad Coordinates''. These come from ] libX11. Tearing my hair out did not help, so I boot UP (was on SMP). ] The problem is... GONE! ] ] Recompile on UP, reboot SMP... Problem is... Yup, GONE! This is actually: - code built while running SMP fails while running SMP. - code built while running SMP works UP. - code built while running UP works everywere. Either of our interpretations could be right. More data, Simon? mike
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