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From: backman@vaxeline.ftp.com (Larry Backman)
Newsgroups: comp.os.os2.misc,comp.os.os2.programmer
Subject: Undocumented MEMMAN switch LP
Keywords: MEMMAN, config.sys
Message-ID: <1342@vaxeline.ftp.com>
Date: 15 Mar 91 16:27:12 GMT
Reply-To: backman@vaxeline.ftp.com.UUCP (Larry Backman)
Organization: FTP Software, Inc.
Lines: 37


I have a very stable NFS IFS which suddenly developed problems
under IBM EE1.3.  The problems are dramatic, the machine GP's when
large programs are launched froma network drive.

I had seen and fixed the same problems 6-9 months ago; in brief
they were caused by OS/2 handing the IFS (and protocol stack below)
it a stack of only 5-700 bytes.

The problem under 1.3 exhibits the same symptoms; I am 90% sure
that OS/2 1.3 takes just a little more stack space before it
hands off requests to the IFS, which subsequently GP's.

A comment was made on one of the OS/2 newsgroups about IBM's own
TCP/IP NFS client exhibiting the exact behavior.  The IBM TCP
group in Raleigh suggested using the undocumented LP switch
to the MEMMAN statement in config.sys

MEMMAN=SWAP,MOVE,LP

to force OS/2 1.3 to "lauch network programs" as they were
in 1.2.

I have documented the probelm in release notes; there seems no
easy way to fix my product at the current time other than to
document around this.

The question to the net, and more specifically, to the Microsoft
& IBM developers who read this group is; what is this switch
and what ramifications does using it have on the rest of the 
OS/2 machine?




					Larry Backman
					backman@ftp.com