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Mail Archives: pgcc/1999/07/27/05:27:05

Message-Id: <3.0.32.19990727111742.0117ea60@pop.xs4all.nl>
X-Sender: diep AT pop DOT xs4all DOT nl
X-Mailer: Windows Eudora Pro Version 3.0 (32)
Date: Tue, 27 Jul 1999 11:17:44 +0100
To: pgcc AT delorie DOT com, pgcc AT delorie DOT com
From: Vincent Diepeveen <diep AT xs4all DOT nl>
Subject: Re: mmap
Mime-Version: 1.0
Reply-To: pgcc AT delorie DOT com

At 09:16 AM 7/26/99 -0700, Gordon K. Stone wrote:
>
>I have a program in which a number of executables use an mmap'ed file
>to share memory. This used to work fine, but we updated to Redhat ver
>5.2, and now the changes made by one process are no longer seen by the
>others.

That was probably under unix and not linux,
because
allocating shared anonymous memory is not implemented yet 
in linux.


>I am using the MAP_FIXED flag--the mmap'ed memory contains absolute
>pointers.
>
>The program has two possible interfaces, an X interface and a console
>interface. Everything appears to work okay when using the X interface.
>It's under the console interface that the problem appears.
>
>Any ideas? Is mmap() different?
>
>Sincerely
>
>
>Gordon Stone
>Technical Support
>Aptech Systems, Inc
>23804 S.E. Kent-Kangley RD
>Maple Valley, WA 98038
>425-432-7855 voice
>425-432-7832 fax
>gordon AT aptech DOT com
>
>
>

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