Path: utzoo!utgpu!cunews!bnrgate!brchh104!brchs1!bnr.ca!rice.edu!sun-spots-request
From: lia!!aldo@fernwood.mpk.ca.us (Aldo Castillo)
Newsgroups: comp.sys.sun
Subject: Re: IPC semaphores:  anyone used them?
Keywords: No Digest Subjects in Unmoderated Mode
Message-ID: <3592@brchh104.bnr.ca>
Date: 5 Jun 91 14:17:00 GMT
Sender: news@brchh104.bnr.ca
Organization: Sunspots, Pseudo-Unmoderated
Lines: 20
Approved: sun-spots@rice.edu
X-Original-Date:    Fri, 24 May 91 18:20:24 GMT

In article <2903@brchh104.bnr.ca> metcalf@masala.lcs.mit.edu (Chris Metcalf) writes:

{gripes deleted}

>Has anyone used the semaphore stuff, and (possibly) seen this?  Is it a
>bug in 4.1?
>

The GENERIC_SMALL kernel does NOT support System V IPC calls.  So I wonder if
you running the GENERIC_SMALL kernel or another kernel with the same missing
feature..

If that is the case, you have to rebuild your kernel, making sure that
/sys/sun4c/conf/<kernel name>'s 3 lines starting with "options IPC" have
not been commented out.

	Aldo Castillo
	Staff Software Engineer