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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