From owner-freebsd-hackers@FreeBSD.ORG  Tue Aug 16 12:51:19 2005
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Date: Tue, 16 Aug 2005 16:51:15 +0400
From: Dmitry Agaphonov <rzhe@agava.com>
To: freebsd-hackers@freebsd.org
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Subject: Shared memory permissions question
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Hello,


I have user A from group G creating shared memory M with permissions
0060.  After this, A fails to attach M due to permission denied.
However, another user B from the same group G successfully attaches M.
User A manages to attach only if permissions 0600 added for M.

Why the system disregards group permissions for user A?  Is it correct
behaviour?

This is happening on FreeBSD 4.11-STABLE.

Thanks in advance.