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Date: Tue, 20 Nov 2001 11:20:53 -0500 (EST)
From: "Richard B. Johnson" <root@chaos.analogic.com>
Reply-To: root@chaos.analogic.com
To: Wolfgang Rohdewald <wr6@uni.de>
cc: "J.A. Magallon" <jamagallon@able.es>, James A Sutherland <jas88@cam.ac.uk>,
        Remco Post <r.post@sara.nl>, linux-kernel@vger.kernel.org
Subject: Re: Swap
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On Tue, 20 Nov 2001, Wolfgang Rohdewald wrote:

> On Tuesday 20 November 2001 15:51, J.A. Magallon wrote:
> > When a page is deleted for one executable (because we can re-read it from
> > on-disk binary), it is discarded, not paged out.
> 
> What happens if the on-disk binary has changed since loading the program?
> -

It can't. That's the reason for `install` and other methods of changing
execututable files (mv exe-file exe-file.old ; cp newfile exe-file).
The currently open, and possibly mapped file can be re-named, but it
can't be overwritten.


Cheers,
Dick Johnson

Penguin : Linux version 2.4.1 on an i686 machine (799.53 BogoMips).

    I was going to compile a list of innovations that could be
    attributed to Microsoft. Once I realized that Ctrl-Alt-Del
    was handled in the BIOS, I found that there aren't any.


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