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Date:      Sat, 20 Sep 1997 04:58:36 +0000 (GMT)
From:      Terry Lambert <tlambert@primenet.com>
To:        peter@spinner.dialix.com.au (Peter Wemm)
Cc:        grog@lemis.com, tlambert@primenet.com, nsmart@iona.com, Don.Lewis@tsc.tdk.com, hackers@FreeBSD.ORG
Subject:   Re: Bug in malloc/free
Message-ID:  <199709200458.VAA16810@usr02.primenet.com>
In-Reply-To: <199709200305.LAA23383@spinner.dialix.com.au> from "Peter Wemm" at Sep 20, 97 11:05:17 am

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> Don't forget the mixed lineage of the SVR4 tree.  My memory is a little 
> vague, but as I understand/remember:-

Heh.  Luckily, I have my trusty Tenon Intersystems poster detailing
"The Unix Evolution" From the 1990 Washington Uniforum!  Here it is,
but without the speculative pieces at the end (including the Tenon 1.0
release date, which was hyped); I've also omitted the "feature
introductions"...

This is vaguely more relevent than the current discussion direction
because it lists BSD.  Sorry, requires 8 column tabs to save space...
8-).

				1966 MIT
				CTSS
				   |
				1965
				MULTICS
				   |
				1969
				UNICS BELL Labs
				   |
				1971
				UNIX 1st Edition
				   |
				1972
				UNIX 2nd
				   |
				1973
				UNIX 3rd
				   |
				1975
				UNIX 5th
				   |
1976 Rochester			1976
RIG				UNIX 6th
   |		   ,---------------+-------------------------------.
   |		   v		   |				   v
   |		1977 UCB	   |				  1977 AT&T
   |		1BSD		   |				  PWB 1.0
   |		   |		   |				   |
   |		1978		   |				   |
   |		2BSD		   |				   |
   |	   ,-------+		   |				   |
   |	   |	   |		1979				  1979
   |	   |	   |		UNIX 7th ----------+-------.	  PWB 3.0
   |	   |	   |	   ,-------+		   |	   |	   |
   |	   |	   |	   v	   |		   |	   |	   |
   |	   |	1979	1979	   |		   |	   |	   |
   |	   |	3BSD <- UNIX 32.V  |		   |	   |	   |
   |	   |	   |		   |		   v	   |	   |
   |	   |	1980		   |		1980 MS	   |	   |
   |	   |	4BSD		   |		Xenix	   |       |
   |	   |	   |		   |		   |	   |	   |
1981 CMU   |	1981		   |		   |	   |	   |
Accent	   v	4.1BSD		   |		   |	   |	   |
   |	   ,-------+-------.	   |		   |	   |	   |
   |	   v	   |	   |	   |		   |	   v	   |
   |	1982	   |	   |	   |		1982	1982 AT&T 1982
   |	2.8BSD	   |	   |	   |		Xenix	UNIX III  PWB 5.0
   |	   |	   |	   |	   |		 3.0	   |	   |
   |	   |	   |	   |	   |		   |	   |	   |
   |	   |	1982/3	1982/3 Sun |		   |	   |	   |
   |	   |	4.1[abc] SunOS	   |		   |	   |	   |
   |	   |<------+	   |	   |		   |	   |	   |
   |	1983	1983	   |	1983		   |	1983	  1983
   |	2.9BSD	4.2BSD	   |	UNIX 8th	   |	SVR1	  PWB 5.2
   |	   |	   |	   |	   |		   |<------x-------+
   |	   |	   |	   |	   |		   |	   |	   |
   |	   |	   +--->1985	   |		1985	1985	   |
   |	   |	   |	SunOS+NFS  |	     SCO Xenix  SVR2	   |
   |	   |	   |	   |	   |		,--x-------+	   |
   |	   |	   |	   |	   |		|  |	   |	   |
1986	   |	1986	   |	1986		|  |	1986	  1986
MACH 1.0   |	4.3BSD	   |	UNIX 9th	|  |	SVR3	  PWB 5.3
   |	   |	   |	   |			|  |	   |	   |
   |	   |	   |	   |	   ,------------'  |	   |	   |
   |	   |<------+	   |	   v		   |	   |	   |
   |	1987	   |	   |	1987 Apple	   |	   |	   |
   |	2.10BSD	   |	   |	A/UX 1.0	   |	   |	   |
   |		   |	   |	   |		   +-.	   |	   |
   |		1988	   |	   |		   | |	1988	  1988
   |		4.3tahoe   |	   |		   | v	SVR3.2	  PWB 5.4
   |		   +-------x-------x---------------x------>|
1989		   |	   |	1989		   |	1989
MACH 2.5	   |	   |	A/UX 1.1	   |	SVR4
=--+-----.	   |	   |	   |		   |	   |	   ,-----=
   |	 v	   |	   |	   |		   |	   |	   |
   |   1990	1990	   |	1990		1990	   |	  1990 OSF
   |   MACH2.6	4.3reno	   |	A/UX 2.0	V/386 3.2  |	  OSF/1
   |   Mt.Xinu	   |	   |	   |		   |	   |	   |
   |		   |	   |	   |		   |	   |	   |
 


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.



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