Date: Wed, 19 Oct 2005 18:49:39 +0200 (CEST) From: Gheorghe Ardelean <ardelean@ww.uni-erlangen.de> To: Marius Strobl <marius@alchemy.franken.de> Cc: freebsd-sparc64@freebsd.org Subject: Re: Installing 6.0-BETA5 on Ultra30: RED State Exception Message-ID: <Pine.LNX.4.33.0510191839130.15909-100000@servww6.ww.uni-erlangen.de> In-Reply-To: <20051010154745.A71846@newtrinity.zeist.de>
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On Mon, 10 Oct 2005, Marius Strobl wrote: > > On Sun, Oct 09, 2005 at 02:33:29PM +0200, Gheorghe Ardelean wrote: > > > > > > Hi, > > > > I have given to FreeBSD 6.0-BETA5 a try on my 250MHz Ultra30. > > Unfortunately there are problems with it just from the beginning. > > > > The first problem I have encountered was the "Release name" > > which is 6.0-BETA4. Because of this none of the distributions could be > > found. After restarting and changing this in 6.0-BETA5 (in the Options > > menu) the distributions could be found but after chunk 34 from bin I get a > > RED State Exception. > > > The problem is that a corrected_ECC_error trap happens while > handling another one. In general FreeBSD doesn't handle > corrected_ECC_error traps very well. Nevertheless it means > a hardware problem. Often these happen due to problems with > the electrical contacts and re-seating the CPU and the memory > modules solves them. If not you probably have a fault memory > module if these traps happen regularly. The OBP diagnostics > (vary from model to model however) and SunVTS should be able > to identify a broken memory module. > It's most likely just coincidence that you don't see them > with FreeBSD 5.2, there where no changes since July '04 > which affect handling of corrected_ECC_error traps. Sorry for the delay. I have finished installing FreeBSD on the Ultra30 by doing a boot from CDROM and installing distributions over the network. Maybe just by accident the RED State Exception did not occur again. After installing I have buildworld and it worked. Maybe, as you suggest was only some electrical contact. > Btw., if you actually have a broken memory module would > you ship it to me for implementing proper handling of > corrected_ECC_error traps? Yes, of course. But maybe the modules are ok but my setup wrong. As I don't have 4 modules the same, I have installed in each bank only 2 identically modules. So I have now 4 banks with 2 modules each but the access time is different in some banks (60ns vs. 70ns). Now I have bought 12 modules on ebay (same manufacturer, size and access time). Regards, Johny.
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