Date: Tue, 5 Dec 2000 22:02:10 +0100 From: Wilko Bulte <wkb@freebie.demon.nl> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: freebsd-alpha@freebsd.org Subject: Re: part numbers for 2100 5/300 processor modules? Message-ID: <20001205220210.A2463@freebie.demon.nl> In-Reply-To: <14893.20355.234641.954094@grasshopper.cs.duke.edu>; from gallatin@cs.duke.edu on Tue, Dec 05, 2000 at 03:34:44PM -0500 References: <20001204155447.E1431@layer8.net> <14892.14352.956036.813077@grasshopper.cs.duke.edu> <20001205205555.H346@freebie.demon.nl> <14893.18646.222048.868530@grasshopper.cs.duke.edu> <20001205210513.M346@freebie.demon.nl> <14893.20355.234641.954094@grasshopper.cs.duke.edu>
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On Tue, Dec 05, 2000 at 03:34:44PM -0500, Andrew Gallatin wrote: > > Wilko Bulte writes: > > > > Tomorrow we will know more. Today I first had to remove the broken > > 512Mb memory module from the Lynx. FreeBSD does not tolerate memory errors, > > the ECC needs CPU help and that is not given. Instead a panic is done ;-) > > Ecc errors are tolerated: > > Jul 11 13:50:00 hurricane /kernel: Warning: received processor correctable error. > > This is an AS600 5/266. I'm pretty sure its an ecc error because it > complained of them fairly bitterly back when it was running Tru64. > > I think the problem is that memory which is totally broken and > generates a machine-check when accessed is not tolerated by FreeBSD, > but is tolerated by Tru64. Somebody once told me that Tru64 probes > all the memory and is smart enough to not use bad memory, that's > probably how it survives on your machine.. That could be the case yes. The SRM maps out 16384 pages (IIRC) of bad memory. At least VMS does not care about that, and happily uses the working memory. -- Wilko Bulte Arnhem, the Netherlands wilko@freebsd.org http://www.freebsd.org http://www.nlfug.nl To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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