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From: mohta@necom830.cc.titech.ac.jp (Masataka Ohta)
Newsgroups: comp.arch
Subject: Re: Paging page tables
Message-ID: <5844@titcce.cc.titech.ac.jp>
Date: 12 Jul 90 04:15:11 GMT
References: <5796@titcce.cc.titech.ac.jp> <1990Jul6.160004.896@zoo.toronto.edu> <5813@titcce.cc.titech.ac.jp> <2699E08D.117A@tct.uucp>
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In article <2699E08D.117A@tct.uucp> chip@tct.uucp (Chip Salzenberg) writes:

>This behavior is entirely consistent with other Unix resource
>management behavior.  Programs do not begin by reserving swap space
>for all the storage they might need.  Rather, they ask for memory as
>necessary.  Likewise, during a fork(), a Unix process doesn't reserve
>swap space; it uses it as necessary.
>
>Perhaps you don't like this philosophy.  Well, then, it seems you're
>using the wrong OS for your tastes.

I don't know what variation of UNIX you know. So please tell me
what happens when there is not enough swap space with your
favorite UNIX.

With vfork, such a situation never occur (except for stack segment),
becasue fork is denied.

Without vfork, it is a serious problem. So, please tell me
what happens.

>"Intelligent" and "elaborate" are not synonyms.

No, of course.

					Masataka Ohta