Port Bug Report: I can't start "postmaster", it gives me shared memroy error.

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                        POSTGRESQL BUG REPORT TEMPLATE
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Your name               : Yu Song
Your email address      : cs_yus@sal.lamar.edu

Category                : unknown
Severity                : critical

Summary: I can't start "postmaster", it gives me shared memroy error.

System Configuration
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  Operating System   : Solaris 7.0/Intel

  PostgreSQL version : 6.5

  Compiler used      : egcs 2.91

Hardware:
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Pentium II-300, 64 RAM

Versions of other tools:
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gmake 3.76

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Problem Description:
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I compiled and installed 6.5 as described in INSTALL. It went fine.
But when I started "postmaster -i", it failed with shared memory error.
That problem did not happen with 6.4.2

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Test Case:
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It occurs on Solaris 7.0 intel edition.

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Solution:
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