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- Newsgroups: comp.unix.bsd
- Path: sparky!uunet!munnari.oz.au!metro!socs.uts.edu.au!syzygy!raz
- From: raz@socs.uts.edu.au (The Inimitable Raz)
- Subject: Re: [386bsd] cp something to /bin/cp and cp core dumps; bug or feature?
- Message-ID: <raz.724317502@syzygy>
- Sender: news@socs.uts.edu.au
- Organization: Computing Sciences, Uni of Technology, Sydney.
- References: <Byn6uL.2oM@ra.nrl.navy.mil> <1992Dec2.185331.57@unislc.uucp> <1fjcsuINN2vf@hrd769.brooks.af.mil> <VIXIE.92Dec5145556@cognition.pa.dec.com>
- Date: 14 Dec 92 07:18:22 GMT
- Lines: 21
-
- vixie@pa.dec.com (Paul A Vixie) writes:
-
-
- >Paged "Virtual Memory", as BSD implements it, means that programs are
- >brought into memory in itty bitty pieces called "pages", and various
- >lies are told that make the program believe that its text and its data
- >and its stack are all contiguous in memory even though most of it could
- >be missing and what's there could be in random order in the real RAM.
-
- [Excellent description of paged virtal memory deleted.]
-
- As I understood it however, writing to an executable was supported by
- virtue of unlinking it FIRST, thus leaving it floating in limbo till
- the process(es) using the pages were terminated. Is this not the case?
-
-
- --
- Bye for now.
- - Raz
-
- raz@socs.uts.edu.au (Roland Turner) (OH) 61 2 319 5700
-