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From: jjo@calmasd.GE.COM (Jay Olson)
Newsgroups: comp.unix.wizards
Subject: Questions about max size of text segment
Message-ID: <2294@calmasd.GE.COM>
Date: Thu, 25-Jun-87 11:41:21 EDT
Article-I.D.: calmasd.2294
Posted: Thu Jun 25 11:41:21 1987
Date-Received: Sat, 27-Jun-87 09:16:02 EDT
Reply-To: jjo@calmasd.UUCP (Jay Olson)
Distribution: world
Organization: Calma Company, San Diego
Lines: 20

Can anyone shed some light on the factors affecting the maximum size of
the text segment on various versions of Unix, particularly Ultrix and
Sun Unix?

Empirically, it appears that the limit is around 7.5 Mb on Sun Unix 3.2.
Interestingly, there is a range of text segment sizes where ld will
produce an output file which cannot sucessfully be executed. Above some
threshold size, ld won't even produce an output file. I have reason to
believe that this behavior also happens under Ultrix 1.2, but I don't
have enough disk space at the moment to find out.

Is the maximum size of the text segment typically hardwired into the
kernel, or can it be configured?

Thanks in advance for any information.

			Jay Olson
			a consultant to GE Calma, San Diego, CA
			...sdcsvax!calmasd!jjo
			jjo@calmasd.GE.COM