[comp.unix.questions] Shared Memory Problems on a Plexus SVR2.1.5

rdm2@nvuxr.UUCP (05/15/87)

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Reply-To: rdm2@nvuxr.UUCP (22125-R McBurnett)
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Organization: Bell Communications Research, Red Bank, NJ
Keywords: Plexus Shared Memory

I am trying to bring up some code that uses shared memory on a Plexus
P35 system running System V.2 (Plexus version 1.5)  The code works fine
on an NCR Tower32 SVR2 and also on an Altos 3068 SVR2.

The problem is like this:  One process creates a shared memory segmemt,
then a 2nd process tries to attach to the segment.  The 2nd process
always coredumps.

If anyone has seen these problems and has a solution please let me know.

I am in the process of putting together 2 hacked versions of the above
processes that display the symptoms of the originals.  I would be
willing to share these with anyone who is willing to check out their
shared memory routines.

Thanks in advance

Roe D McBurnett,  Bell Comunications Research	|these are my own
(201)758 2333		ihnp4!nvuxr!rdm2	|rantings not Bellcore's