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From: jg@max.crl.dec.com (Jim Gettys)
Newsgroups: comp.sys.mips,comp.sys.dec,comp.unix.ultrix
Subject: Re: Problems with Ultrix on DECStation
Keywords: corrupted text segment on ultrix
Message-ID: <5093@crltrx.crl.dec.com>
Date: 12 Apr 90 17:22:14 GMT
References: <2476@syma.sussex.ac.uk>
Sender: news@crltrx.crl.dec.com
Reply-To: jg@max.crl.dec.com (Jim Gettys)
Organization: DEC Cambridge Research Lab
Lines: 14

Are you sure that this is what is going on?

Remember the machine has seperate I and D caches.

If you are doing run-time loading of code into your address
space that you will be executing, you must flush the
I-cache.  Failure to do so will cause random behavior as
you are reporting. (i.e. executing whatever code happened to
be left around in the Icache in those locations).

I've seen N lisp/scheme implementors trip over this one, most
recently within the last week....  So this sounds dreadfully
familiar...
				- Jim