From: eliz AT is DOT elta DOT co DOT il
Message-Id: <200005260725.KAA22827@alpha.netvision.net.il>
Date: Fri, 26 May 2000 10:24:57 +0200
To: Gregg Roe <groe AT magsep DOT com>
Cc: djgpp AT delorie DOT com
X-Mailer: WinNT's Blat ver 1.8.5b
Subject: Re: Hooking a parallel port interrupt
References:  <392D3E00 DOT 15DFD7FB AT magsep DOT com>
Reply-To: djgpp AT delorie DOT com

> From: Gregg Roe <groe AT magsep DOT com>
> Newsgroups: comp.os.msdos.djgpp
> Date: Thu, 25 May 2000 09:51:44 -0500
> 
> I'm trying to execute a C procedure when an interrupt on a Lava parallel
> PCI board is received. The following code does hook the interrupt, but
> then crashes. This occurs whether memory is locked or not.

The code you posted does not lock memory, so it certainly will crash.
Please show the code that does lock the memory, and please also post
the full message printed when the program crashes, including the
register dump, after you've run SYMIFY on it.