Newsgroups: comp.protocols.tcp-ip.ibmpc
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From: rich@skybridge.SCL.CWRU.Edu (Rich Warwick)
Subject: Re: Compiling newer versions of KA9Q with huge memory model
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Message-ID: <1991May2.200847.7393@usenet.ins.cwru.edu>
Followup-To: rich@scl.cwru.edu
Summary: Increasing process stack space helps a little 
Keywords: ka9q stack violations 
Sender: rich@scl.cwru.edu
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Organization: Love Glide, Inc.
References: <1991May2.152354.25971@magnus.acs.ohio-state.edu>
Date: Thu, 2 May 91 20:08:47 GMT
Lines:       35

In article <1991May2.152354.25971@magnus.acs.ohio-state.edu> ebarria@magnus.acs.ohio-state.edu (Enrique A Barria) writes:
>I've been using portions of KA9Q recompiled with huge memory model
>(v890816 NOS) without problems. I'm trying to upgrade KA9Q, but when
>using KA9Q NOS version 910423 I get 'Stack violation' error messages.
>Does anyone have any idea on how to solve this problem? Any help will
>be greatly appreciated.
>
>The error messages I get are like this:
>	Stack violation, process display
>	SP = 4ece0450, legal stack range [63f60008, 63f601fc)
>Errors are produced either by the display or keyboard processes.
>
Well, I've had similar problems with G1EMM v.113016. Enlarging the 
stack space for the processes seems to help a little, but the same problem
keeps recurring. I'd be interested to hear what changes you made to the
code. I #undef-ed all the other transport code except the the ehternet/
packet driver stuff, which caused no problems at all. I added a few things
to the display driver, and KA-BOOM! Stack violation city!! I tried increasing
the stack space for a bunch of the processes (keyboard, display, most of the 
daemons & clients) and that kept it from choking on the display or keyboard
drivers, and the clients seem to work just fine, but start up a server and
BLAMMO! Stack violations...very strange...Anybody out there (Phil Karn?
Kelvin Hill?) have any idea why this happens?
		
						Rich




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Richard Warwick              Internet:  rich@b62707.student.CWRU.Edu
Case Western Reserve U.	      o o       rich@SCL.CWRU.Edu
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