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- Newsgroups: comp.sys.sgi
- Path: sparky!uunet!elroy.jpl.nasa.gov!ames!sgi!odin!sgihub!zola!zuni!anchor!olson
- From: olson@anchor.esd.sgi.com (Dave Olson)
- Subject: Re: What Silicon Revision of R4000 Is Shipping?
- Message-ID: <patt3nc@zuni.esd.sgi.com>
- Sender: news@zuni.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc. Mountain View, CA
- References: <HOLLAN.92Sep1155239@tavarua.bellcore.com>
- Distribution: comp
- Date: Wed, 2 Sep 92 02:36:54 GMT
- Lines: 26
-
- In <HOLLAN.92Sep1155239@tavarua.bellcore.com> hollan@bellcore.com (Jim Hollan) writes:
-
-
- | What silicon revision is shipping with R4000 indigo's? As I understand
- | it there is a bug present in silicon revisions 2.1 and 2.2 that could
- | be a problem for us and we have a number of R4000 upgrades on order.
-
- 2.2. 2.1 only shipped on early crimsons (all 2.1's should have been upgraded
- to 2.2 long since). 2.2 does have problems, but all can be worked around
- in the kernel (2.1 required munging up some existing programs to make
- them work). 4.0.5 has fixes for all the known bugs but one, and 4.0.5C has
- a fix for that. r4k indigos have 4.0.5D, and have all known r4k bugs worked
- around in software.
-
- This applies only to programs built with 'ld'. Interpreters that build
- their own code and jump to it have to take precautions to not generate
- code that will trigger this problem.
-
- There is/was to be a rev 3.0 that fixed one of the bugs that a major software
- company didn't want to deal with, but that isn't a big deal.
-
- The R4000A is the next 'interesting' chip rev for most folks.
- --
- Let no one tell me that silence gives consent, | Dave Olson
- because whoever is silent dissents. | Silicon Graphics, Inc.
- Maria Isabel Barreno | olson@sgi.com
-