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From: howard@brl-tgr.ARPA (Howard Walter <howard>)
Newsgroups: net.unix-wizards
Subject: Kernel mods and RTIngres
Message-ID: <10344@brl-tgr.ARPA>
Date: Wed, 1-May-85 21:16:05 EDT
Article-I.D.: brl-tgr.10344
Posted: Wed May  1 21:16:05 1985
Date-Received: Sat, 4-May-85 03:56:13 EDT
Distribution: net
Organization: Ballistic Research Lab
Lines: 24


	At BRL, we have been running the two latest versions of commercial
Ingres produced by Relational Technology.  Version 2.0 required kernel
modifications to implement a lock driver in order for RTIngres to run in
multi-user mode.  Version 2.1, the latest version for Unix, requires a
binary-only module to be linked with the normal kernel routines.

	Mike Scott, R. T. Director for New Environments (415-769-1400),
told me that sockets couldn't be used for the lock driver since that
would only work on 4.2 systems and shared memory was out since that
only worked on Sys5; kernel mods would work on any version of UNIX.

	We are concerned about the security implications of binary-only
modules added to our kernel.  We are also having problems trying to run
RTIngres on newer kernels (pre-4.3).  Relational Technology would be happy
to sell us the source for the kernel mod (as well as the rest of RTIngres)
for only a few hundreds of thousands of dollars!

	Is anyone else running RTIngres?  How do you feel about using
binary-only modules in your kernel?
	
Howard Walter
howard@brl
...seismo!brl-bmd!howard